INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY

CZECH CHEMICAL SOCIETY

1997 PRAGUE MEETINGS ON MACROMOLECULES
54th meeting - 38th microsymposium

RECYCLING OF POLYMERS

PRAGUE, 14 - 17 JULY 1997

P R O G R A M M E  B O O K L E T

INSTITUTE OF MACROMOLECULAR CHEMISTRY
ACADEMY OF SCIENCES OF THE CZECH REPUBLIC
PRAGUE, CZECH REPUBLIC

EDITORIAL

38th Microsymposium Programme Booklet published as

VOLUME K66

ISBN 80-85009-27-7

by the Institute of Macromolecular Chemistry
of the Academy of Sciences of the Czech Republic

Summaries of main lectures, special lectures, and poster communications are reproduced
as submitted.

C O N T E N T S

ORGANIZATION .................................................................................................................... 4

SPONSORS .............................................................................................................................. 6

GENERAL INFORMATION .................................................................................................... 7

Accommodation of Participants .......................................................................................... 7

Transport ........................................................................................................................... 8

Lunches and Refreshments .................................................................................................. 9

Social Events ..................................................................................................................... 9

ACCOMPANYING PERSONS' PROGRAMME ...................................................................... 10

SCIENTIFIC PROGRAMME ................................................................................................... 11

Presentation of Main Lectures ........................................................................................... 11

Presentation of Special Communications ........................................................................... 11

Presentation of Poster Communications ............................................................................ 11

List of Main Lectures ........................................................................................................ 12

List of Special Communications ........................................................................................ 13

Microsymposium Schedule ............................................................................................... 15

Session Timetables ............................................................................................................ 16

AUTHOR INDEX .................................................................................................................... 24

SUMMARIES OF LECTURES AND COMMUNICATIONS .................................................. 27

LIST OF ACTIVE PARTICIPANTS ........................................................................................  i

LIST OF ACCOMPANYING PERSONS ................................................................................. vii

Under the auspices of the

INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY

Macromolecular Division

J. ECONOMY

President

Directed by the

IUPAC WORKING PARTY
ON RECYCLING OF POLYMERS

N.M. BIKALES

Chairman

Organized by the

INSTITUTE OF MACROMOLECULAR CHEMISTRY
ACADEMY OF SCIENCES OF THE CZECH REPUBLIC

P. KRATOCHVÍL

Director of the Institute

J. LUKÁŠ

P.M.M. Head

P. ČEFELÍN

P.M.M. Coordinator

J. KAHOVEC

P.M.M. Editor

M. SRPOVÁ

P.M.M. Secretary

M. RODOVÁ

P.M.M. Assistant Secretary

J. HRADIL

P.M.M. Technical Manager

D. KOTÍKOVÁ
P.M.M. Social Programme Manager

International Advisory Board

T. AKEHATA (JAPAN) J.D. IDOL (U.S.A.)
A.-C. ALBERTSSON (SWEDEN) R.N. LIESEMER (U.S.A.)
J. BRANDRUP (GERMANY) F.W. MADER (BELGIUM)
M.M. FISHER (U.S.A.) R.H. MARCHESAULT (CANADA)
F. GARBASSI (ITALY) Y. PIETRASANTA (FRANCE)
W. HEITZ (GERMANY) H.W. SCHNECKO (GERMANY)
P.S. HOPE (U.K.) R.W. TRUSS (AUSTRALIA)

Microsymposium Chairman

N.M. B I K A L E S (U.S.A.)

Local Programme Committee

J. KOVÁŘOVÁ
Chairworman

Z. HORÁK, Z. KRULIŠ, F. LEDNICKÝ
J. ROTSCHOVÁ, F. RYPÁČEK, P. STRAKA

The Meeting has been generously sponsored by

DSM, THE NETHERLANDS

- European Science Engineering Programme, BELGIUM

- FATRA, a.s., CZECH  REPUBLIC

KAUČUK, a.s., CZECH  REPUBLIC

POLYMER INSTITUTE BRNO, a.s., CZECH  REPUBLIC

SPOLANA, a.s., CZECH  REPUBLIC

SYNTHESIA, a.s., CZECH  REPUBLIC

For advertisement, see the last pages of the Programme Booklet.

G E N E R A L   I N F O R M A T I O N

REGISTRATION

On-site registration of participants takes place on Sunday, 13 July, from 14:00 to 21:00 in the Komenský hall of residence, Praha 6, Parléřova 6; the registration continues in the Institute of Macromolecular Chemistry (room C) the next day. The Microsymposium Office will operate on
14-17 July (Monday through Thursday) from 08:30 to 12:30 and from 13:30 to 16:30.

All participants should register. Only persons wearing name badges are entitled to enter the lecture room.

No exchange counter operates in the Komenský hall of residence or in the Institute of Macromolecular Chemistry. Information about the nearest exchange offices is available at the Registration Desk.

Registration fees

On-site cash payment of the registration fee is considered as payment after 15 April. The P.M.M. Secretariat is not authorized to accept credit cards or personal cheques.

The registration fee does not include provision for any kind of insurance. Neither the organizing institutions nor the Organizing Committee assume responsibility or liability for personal accident and loss or damage to belonging however caused.

ACCOMMODATION

Accommodation for most participants has been reserved in the Komenský hall of residence, Praha 6, Parléřova 6. Some participants stay in the Academy residence, Praha 6, Na Marně 9. On-site cash payment of the booked accommodation is to be made at the Registration Desk.

Breakfast is served in the cafeteria of the Komenský hall of residence and in the Academy residence (for participants staying here) from 07:00 to 08:00. Breakfast is included in the accommodation cost.

Participants must leave the rooms on the day of their departure by 12:00.

TRANSPORT

Public transport

Within the city, there is an integrated transport system (underground Metro, trams, and buses) which operates without conductors. Tickets must be purchased in advance and stamped inside the tram or bus or before passing the gates of the Metro. Tickets for Kč 6 for a single 15-minute journey by tram or bus, or four-stop journey by Metro  -  as well as transfer tickets for Kč 10 for a 60-minute journey by all means of transport are on sale at newspaper stands and tobacco shops, at hotel reception desks, in restaurants, at railway stations, at the airport, etc. The Metro runs from 5 a.m. till midnight.

How to reach the Institute of Macromolecular Chemistry

From the Komenský hall of residence, go downhill to the tram stop "Hládkov" and take tram No 8 (direction to LEHOVEC). Get off the next stop ("Vozovna Střešovice") and change to tram No 1, 2, or 18 (in the opposite direction - to PETŘINY) as far as the terminus PETŘINY.

From the Academy residence, take tram No 25 (direction to STŘELNIČNÁ), get off at Hradčanská (2 stops), and change to tram No 1 or 18 (in the opposite direction - to PETŘINY) as far as the terminus PETŘINY.

From the city centre, take the Metro green line A as far as "Hradčanská" station. From there, take tram No 1 or 18 (direction to PETŘINY) as far as the terminus PETŘINY.

How to reach the Komenský hall of residence

From the Institute, take tram No 1, 2, or 18 and get off at "Vozovna Střešovice" (7 stops), change to tram No 8 (in the opposite direction - to BÍLÁ HORA), get off the next stop ("Hládkov"), and go forward as far as the Parléřova Street.

From the city centre, take the Metro green line A as far as "Hradčanská" station. From there, take tram No 8 (direction to BÍLÁ HORA), get off at "Hládkov" (3  stops), and go forward as far as the Parléřova Street. You may also take tram No 18 in the city centre, get off at "Hradčanská", and proceed as above.

How to reach the Academy residence

From the Institute, take tram No 2, get off at Vítězné náměstí (9 stops), change to tram No 25 (direction to PODBABA), gett off the next stop (Lotyšská), take the first turning to the right, and go forward as far as the Na Marně Street.

From the city centre, take the Metro green line A as far as Dejvická station. From there, take tram No 25 (direction to PODBABA), get off at Lotyšská (1 stop), and proceed as above.

Taxi

The taxi fare is Kč 15-25 per kilometre within the city boundaries. The special taxi fare from the Komenský hall of residence or the Institute to the airport is Kč 400-500 (from downtown
Kč 500-600).

Special transport

Special buses will only bring the participants from the Academy residence to the Institute every morning. The departure times are given on the notice board at the Registration Desk.

Air and railway transport

Prague has direct air links with most capitals in Europe and with many countries overseas. The international airport Praha is situated about 20 km (12 miles) from the city centre. Buses operated by the Czech Airlines (České aerolinie, ČSA) run in 20-30 min intervals from the city terminal ("Vltava", Praha 1, V celnici, near the Metro station "Náměstí Republiky" yellow line B) to the airport; airport-bus fare Kč 85.

International trains leave Prague from the following railway stations: Praha - hlavní nádraží (Main Station; also a Metro station of the red line C), Praha - Holešovice (also a Metro station of the red line C), and Praha - Smíchov (also a Metro station of the yellow line B).

LUNCHES AND REFRESHMENTS

Lunches (included in the registration fee) will be available for active participants and registered accompanying persons from 12:30 to 13:30 in the refectory of the halls of residence "Větrník", which can be reached by bus No 179 or 191 (one stop), tram No 1 or 18 (two stops), or walk (about 10 min) from the Institute. Admission by tickets only.

Coffee, tea, and soft drinks (included in the registration fee) are served during the mid-morning and mid-afternoon breaks. Refreshments are on sale in the canteen of the Institute.

SOCIAL EVENTS

Welcome reception

Sunday, 13 July, 19:00-21:00. An informal get-together party with cold dishes in the Komenský hall of residence. (Complimentary for all registered participants.)

Excursion with informal dinner

Wednesday, 16 July, 14:00-23:00. Visit to the royal castle Orlík built in the 14th century and towering now over the dam spanning the Vltava River (dam height 91 m, lake depth 74 m, water content 720 million cubic metres): seeing rich collections of arms and hunting trophies. The excursion continues with a boat trip to the confluence of the rivers Vltava and Otava to one of the most important Czech royal castles Zvíkov, founded by king Přemysl Otakar I (1192-1228) on the site of a Celtic oppidium and then held by various aristocratic families (houses of Rožmberk, Švamberk, Eggenberg, Schwarzenberg).

The informal dinner will take place in the Zvíkov brewery restaurant, after seeing the brewery including gustation of beer.

The buses depart from the Institute and return to the Academy residence and the Komenský hall of residence. Admission by tickets only.

Price: CHF 90.

Farewell toast

Thursday, 17 July. A stirrup-cup and canapés after the closing ceremony in the Institute. (Complimentary for all participants.)

A C C O M P A N Y I N G  P E R S O N S'  P R O G R A M M E

Admission for those who paid the accompanying person's fee. The fee includes four lunches (admission by tickets Accompanying Persons Programme) three of which (on Monday, Wednesday, and Thursday) are available from 12:30 to 13:30 in the refectory of the halls of residence Větrník (see p. 9). Only persons wearing the Meeting name badges (including children) are entitled to enter the bus.

Monday, 14 July

14:00-17:00 - Introductory sightseeing in Prague.

The bus departs from the Institute and returns to the Academy residence and the Komenský hall of residence.

Tuesday, 15 July

09:00-17:00 - A visit to Karlovy Vary (Carlsbad, about 130 km north-west of Prague), situated in a deep valley of the Teplá River and surrounded by large forests. Karlovy Vary was originally a fortress founded by Charles IV in the 14th century, later a world-famous spa, the largest in the Czech Republic (treatment of diseases of the digestive tract and metabolic diseases with mineral waters from twelve thermal springs, temperatures up to 73 Centigrade). The spa was visited by many personages such as Beethoven, Goethe, German emperors, and Russian tsars. Karlovy Vary is also renowned through the Moser glass, Bohemian porcelain, and the Becherovka herb liqueur (sometimes called "the thirteenth spring"): Sightseeing the spa, walk in the colonnades, visit to the biggest hot spring (2000 litres per minute, shooting up to 12 m height), tasting mineral waters, visit to the museum of porcelain.

The bus departs from the Institute and returns to the Academy residence and the Komenský hall of residence.

Wednesday, 16 July

09:00-12:30 - Guided visit to the Prague Castle (Hradčany) and to the Charles Bridge (Karlův most) dating back to the Middle Ages, often called "the gallery of statues in the open air".

The bus departs from the Institute. After walking-seeing the Castle area and walk to the Bridge, return to the halls of residence "Větrník" by bus.

Thursday, 17 July

09:00-12:30 - Guided sightseeing, featuring a walk through the Old Town of Prague and a visit to the former Jewish Ghetto of Prague.

The bus departs from the Institute and returns to the halls of residence "Větrník".

PROGRAMME

SESSIONS

All sessions will be held in the Institute of Macromolecular Chemistry of the Academy of Sciences of the Czech Republic, Praha 6 - Petřiny, Heyrovského náměstí 2.

LANGUAGE

English is the working language of the Microsymposium. No translation will be provided.

PRESENTATION OF CONTRIBUTIONS

Main lectures

The presentation time for each lecture is 40 minutes, additional 10 minutes is reserved for discussion.

Special lectures

The presentation time for each lecture is 20 minutes, additional 5 minutes is reserved for discussion.

Poster communications

A poster session will take place on Tuesday in the morning. Posters should be mounted the day preceding the corresponding poster session in order to be freely accessible to the participants for preliminary inspection. The posters should be removed immediately after the session.

PRESENTATION FACILITIES

Projection of 5x5 cm slides, overhead projection, and blackboard are available for lectures and discussions. Slide projector does not function with slides thicker than 2.5 mm. The speakers are requested to bring their slides to the operator during the break before the session of their scheduled presentation.

PUBLICATION OF LECTURES

Both main lectures and special lectures will be published in a special volume of Macromolecular Symposia.

MAIN  LECTURES

ML1 J. BRANDRUP (GERMANY)

Ecological and Economical Aspects of Polymer Recycling

ML2 F.W. MADER (BELGIUM)

Recovery of Polymer Waste - A Technological Challenge

ML3 C. KLASON, H. BERTILSSON, L. XIAODONG (SWEDEN)

Quality Assurance of Recycled Engineering Plastics Using Blend Technology

ML4 B. RIEDL (CANADA)

Recycled Injection-Molded and Fibre-Reinforced Poly(ethylene)/Poly(propylene)

ML5 D. BRKLE (FRANCE)

Integrated Waste Management - A Pragmatic Case by Case Approach Optimizing Recycling and Energy Recovery

ML6 K. ARAI (JAPAN)

Conversion of Polymers and Biomass to Chemical Intermediates with Supercritical Water

ML7 C.C. LIN (REPUBLIC OF CHINA)

Recycling Technology of Poly(ethylene terephthalate) Materials

ML8 J. MILTZ (ISRAEL)

Approaches to Deal with the Issue of Plastic Packages and the Environment

ML9 W. MICHAELI (GERMANY)

Polymer Recycling - Status and Perspectives

_________

Lecturer.

SPECIAL  LECTURES

SL1 S. HARDMAN, D.C. WILSON (U.K.)

Polymer Cracking - New Hydrocarbons from Old Plastics

SL2 R.D. DEANIN, C.M. BARRY, S. WORAMONGCONCHAI, S.C. PARIKH (U.S.A.)

Recycling of Mixed Automotive Plastics

SL3 T. MANG, F. HAULENA (GERMANY)

Recycling of Polymer Composites

SL4 J.E. KRESTA, X. XIAO, B.SUTHAR, D. KLEMPNER, S.BOROS (U.S.A.)

New Approach to Recycling of Thermosets

SL5 F.P. LA MANTIA (ITALY)

The Role of Additives in the Recycling of Polymers

SL6 J. POSPÍŠIL, Z. HORÁK, S. NEŠPŮREK (CZECH REPUBLIC)

The Origin and Role of Structural Inhomogeneities and Impurities in Material Recycling of the Plastics Waste

SL7 R. PFAENDNER, H. HERBST, K. HOFFMANN (GERMANY)

Innovative Concept for the Upgrading of Recyclates by Restabilization and Repair Molecules

SL8 Y. SAKATA (JAPAN)

Catalytic Degradation of Polyethylene and Polypropylene into Fuel Oil

SL9 M.M. SAIN, J.J. BALATINECZ (CANADA)

The Influence of Recycling on the Properties of Woodfiber - Polyolefin Composites

SL10 A. BUEKENS (BELGIUM)

Technical Methods of Plastics Pyrolysis

SL11 G. AUDISIO (ITALY)

A New Chemical Recycling Methodology: Monomer Recovering from Polyolefinic Materials by means of Hydrous Pyrolysis

SL12 H. BOCKHORN, A. HORNUNG, U. HORNUNG (GERMANY)

Stepwise Pyrolysis for Recycling of Plastic Mixtures

SL13 M. BLAZSÓ (HUNGARY)

Chlorinated Products of Plastics Pyrolysis

(Continued)

SL14 S. TSUGE, H. SATO, H. OHTANI (JAPAN)

Evaluation of Chitin-Based Polymer Blends for Biomass Utilization by means of Analytical Pyrolysis

SL15 C. BASTIOLI (ITALY)

Biodegradable Materials - Present Situation and Future Perspectives

SL16 K. NAKASAKI (JAPAN)

Degradability of Biodegradable Plastics under Controlled Composting Conditions

SL17 T. SPYCHAJ, D. PASZUN (POLAND)

New Trends in Chemical Recycling of Poly(ethylene terephthalate)

SL18 J.M. VERGNAUD (FRANCE)

Recycling of Polymers in Food Packagings: Problems of Pollutant Transport and Food Protection

SL19 A.-C. ALBERTSSON, S. KARLSSON (SWEDEN)

Recycling of Inexpensive Packaging versus Expensive Engineering Materials

SL20 W. LINDNER (GERMANY)

Status Quo with Regard to the Physical Recycling of Plastic Packagings in the Federal Republic of Germany from the View of the German Society for Plastics Recycling

SL21 P. MAJORANA (ITALY)

An Italian Nationwide System for Plastic Containers Recovery and Recycling: Achievements, Structure, and Products from the Consolidated Experience

_________

Lecturer.

PANEL DISCUSSION

PD1 Future of Polymer Recycling

Discussion leader: N.M. BIKALES (U.S.A.)

MICROSYMPOSIUM SCHEDULE

SUNDAY 13 JULY 14:00-21:00 Registration

19:00-21:00 Welcome reception

MONDAY 14 JULY 10:00-10:25 Opening ceremony

10:35-11:15 Opening lecture: ML1

11:25-11:45 Special lecture: SL1

11:50-12:10 Special lecture: SL2

Lunch

14:00-14:40 Main lecture: ML2

14:50-15:10 Special lecture: SL3

15:15-15:35 Special lecture: SL4

Coffee break

16:00-16:40 Main lecture: ML3

16:50-17:10 Special lecture: SL5

17:15-17:35 Special lecture: SL6

17:40-18:00 Special lecture: SL7

TUESDAY 15 JULY 09:00-09:40 Main lecture: ML4

09:50-10:10 Special lecture: SL8

10:15-10:35 Special lecture: SL9

Coffee break

11:00-12:20 Poster session: PS1

Lunch

14:00-14:40 Main lecture: ML5

14:50-15:10 Special lecture: SL10

15:15-15:35 Special lecture: SL11

Coffee break

16:00-16:20 Special lecture: SL12

16:25-16:45 Special lecture: SL13

16:50-17:10 Special lecture: SL14

WEDNESDAY 16 JULY 09:00-09:40 Main lecture: ML6

09:50-10:10 Special lecture: SL15

10:15-10:35 Special lecture: SL16

Coffee break

11:00-11:40 Main lecture: ML7

11:50-12:10 Special lecture: SL17

Lunch

14:00-23:00 Excursion & Informal dinner

THURSDAY 17 JULY 09:00-09:40 Main lecture: ML8

09:50-10:10 Special lecture: SL18

10:15-10:35 Special lecture: SL19

Coffee break

11:00-12:15 Panel discussion: PD1

Lunch

14:00-14:20 Special lecture: SL20

14:25-14:45 Special lecture: SL21

14:50-15:30 Closing lecture: ML9

Farewell

SESSION TIMETABLES

MONDAY, 14 JULY

10:00 OPENING CEREMONY

Opening addresses:

N.M. BIKALES (U.S.A.)

Microsymposium Chairman

P. KRATOCHVÍL

Director of the Institute of Macromolecular Chemistry

J. KOVÁŘOVÁ

Chairwoman of the Local Programme Committee

LECTURE SESSION  1, Chairmen: P.KRATOCHVÍL (CZECH REPUBLIC)

J. LUKÁŠ (CZECH REPUBLIC)

10:35 Opening Lecture: ML1

J. BRANDRUP (GERMANY)

Ecological and Economical Aspects of Polymer Recycling

11:25 Special Lecture: SL1

S. HARDMAN, D.C. WILSON (U.K.)

Polymer Cracking - New Hydrocarbons from Old Plastics

11:50 Special Lecture: SL2

R.D. DEANIN, C.M. BARRY, S. WORAMONGCONCHAI, S.C. PARIKH (U.S.A.)

Recycling of Mixed Automotive Plastics

MONDAY, 14 JULY

LECTURE SESSION 2, Chairmen: J. BRANDRUP (GERMANY)

R.D. DEANIN (U.S.A.)

14:00 Main Lecture: ML2

F.W. MADER (BELGIUM)

Recovery of Polymer Waste - A Technological Challenge

14:50 Special Lecture: SL3

T. MANG (GERMANY)

Recycling of Polymer Composites

15:15 Special Lecture: SL4

J.E. KRESTA, X. XIAO, B. SUTHAR, D. KLEMPNER, S. BOROS (U.S.A.)

New Approach of Recycling of Thermosets

LECTURE SESSION 3, Chairmen: S. HARDMAN (U.K.)

F. LEDNICKÝ (CZECH REPUBLIC)

16:00 Main Lecture: ML3

C. KLASON (SWEDEN)

Quality Assurance of Recycled Engineering Plastics Using Blend Technology

16:50 Special Lecture: SL5

F.P. LA MANTIA (ITALY)

The Role of Additives in the Recycling of Polymers

17:15 Special Lecture: SL6

J. POSPÍŠIL, Z. HORÁK, S. NEŠPŮREK (CZECH REPUBLIC)

The Origin and Role of Structural Inhomogeneities and Impurities in Material Recycling of the Plastics Waste

17:40 Special Lecture: SL7

R. PFAENDNER, H. HERBST, K. HOFFMANN (GERMANY)

Innovative Concept for the Upgrading of Recyclates by Restabilization and Repair MoleculesTUESDAY, 15 JULY

LECTURE SESSION 4, Chairmen: A.-C. ALBERTSSON (SWEDEN)

Z. HORÁK (CZECH REPUBLIC)

09:00 Main Lecture: ML4

B. RIEDL (CANADA)

Recycled Injection-Molded and Fibre-Reinforced Poly(ethylene)/Poly(propylene)

09:50 Special Lecture: SL8

Y. SAKATA (JAPAN)

Catalytic Degradation of Polyethylene and Polypropylene into Fuel Oil

10:15 Special Lecture: SL9

M.M. SAIN, J.J. BALATINECZ (CANADA)

The Influence of Recycling on the Properties of Woodfiber - Polyolefin Composites

11:00 POSTER SESSION: PS1
P1 E. Ikada
Strategy for Enhancement of Polymer Degradability for Suppressing Environmental Pollution by Polymers
P2 M.M.Macoveanu, M.C.Pascu, I.Mandreci, I.Profire, E.G.Agafitei, C.Vasile
The Reciprocal Influence Polymers Buried in Soil - Plant Growth
P3 C. Vasile, M. Brebu, H. Darie
Chemicals and Energy from Medical Polymer Wastes. Pyrolysis of Disposable Syringes
P5 A. Kuta, V. Ducháček
A Simple Process for Rubber Recycling
P6 J. Šimek, V. Ducháček
Recycling of Waste Polyethylene Contamined with Mineral Oils
P7 V. Vermylen, J. Devaux, R. Legras, W.A. McDonald, R.A. Choudhery
PET Cyclic Oligomers: Potential Intermediates for Recycling? A Thermodynamic Study

TUESDAY, 15 JULY
P8 G. Burillo, F. Martinez, E. Adem
Crosslinking of Recycled Polyethylene by Gamma Irradiation in the Presence of Crosslinking Agents
P9 Y. Matsumoto, K. Hiyoshi
Polystyrene Hydrocracking in Liquid Phase
P10 P. Jandura, B.V. Kokta
Cellulose Ester/LLDPE Composites
P11 Yuchuv Ou, Zjomgzhev Yu, Bizhong Li
Recycled Polyamide Fiber and Its Application
P12 A. Parker, D. O'Hagan
Enzymatic Polymerisation in Organic Media
P13 K. Murata, Y. Hirano, N. Tezuka, M. Kaji
Pulverization of Waste Plastics and Their Combustion
P14 T. Taniguchi, K. Okamura
Ultramicrofibrillation of Recycled Natural Fibers
P15 Y. Sato, T. Kamo
Effect of Solvent on the Liquid-Phase Cracking of Thermosetting Resins
P16 A. Uddin, Y. Sakata, A. Muto, K. Murata
Conversion of Waste Plastics into Fuel Oil by Thermal and Catalytic Degradation
P17 L. Xiaodong, H. Bertilsson, C. Klason
Reactive Compatibilization of ABS/PA6 Waste Blends
P18 J. Janik, W. Królikowski
Rheological and Morphological Properties of PET and Polyolefine Blends - Recycling Futures
P19 M. Kozlowski, A. Kozlowska, J. A. Covas
Melt Rheology of PP/PA Recyclates

TUESDAY, 15 JULY
P20 Z. Kruliš, D. Michálková, F. Lednický, Z. Horák, M. Sufčák
Recycling of Polyolefin Waste Using Maleinized Liquid Polybutadiene
P21 Z. Kruliš, D. Michálková, J. Mikešová, B.V. Kokta
Polyolefin Composites Reinforced by Cellulosic Fibers of Paper Waste
P22 P. Straka, J. Buchtele, J. Kovářová
Co-pyrolysis of Coal with Waste Polymers
P23 Y. Magoshi, M.A. Becker, C. Sano, J. Magoshi
The Degradation of Silk. Silk, A Naturally Occuring Biodegradable Polymer
P24 J. Morawiec, Z. Bartczak, M. Pluta, A. Galeski
Packaging Straps from Recycled Beverage PET Bottles
P25 L. Häussler, J. Kovářová, V. Albrecht, J. Rotschová
Structural Characterization of Aged LDPE by Means of a Simultaneous Thermal Analyzer, Coupled with a Mass Spectrometer Skimmer System (STA-QMS)
P26 M. Pracella, M. Simonetti, P. Laurienzo, M. Malinconico
A Study of Nylon 6/ Modified EVOH Blends for Recyclable Packaging Films

TUESDAY, 15 JULY

LECTURE SESSION 5, Chairmen: B. RIEDL (CANADA)

J. ROTSCHOVÁ (CZECH REPUBLIC)

14:00 Main Lecture: ML5

D. BRKLE (FRANCE)

Integrated Waste Management - A Pragmatic Case by Case Approach Optimizing Recycling and Energy Recovery

14:50 Special Lecture: SL10

A. BUEKENS (BELGIUM)

Technical Methods of Plastics Pyrolysis

15:15 Special Lecture: SL11

G. AUDISIO (ITALY)

A New Chemical Recycling Methodology: Monomer Recovering from Polyolefinic Materials by means of Hydrous Pyrolysis

LECTURE SESSION 6, Chairmen: J.J.BALATINECZ (CANADA)

J.E. KRESTA (U.S.A.)

16:00 Special Lecture: SL12

H. BOCKHORN, A. HORNUNG, U. HORNUNG (GERMANY)

Stepwise Pyrolysis for Recycling of Plastic Mixtures

16:25 Special Lecture: SL13

M. BLAZSÓ (HUNGARY)

Chlorinated Products of Plastics Pyrolysis

16:50 Special Lecture: SL14

S. TSUGE, H. SATO, H. OHTANI (JAPAN)

Evaluation of Chitin-Based Polymer Blends for Biomass Utilization by means of Analytical PyrolysisWEDNESDAY, 16 JULY

LECTURE SESSION 7, Chairmen: J. MILTZ (ISRAEL)

F. RYPÁČEK (CZECH REPUBLIC)

09:00 Main Lecture: ML6

K. ARAI (JAPAN)

Conversion of Polymers and Biomass to Chemical Intermediates with Supercritical Water

09:50 Special Lecture: SL15

C. BASTIOLI (ITALY)

Biodegradable Materials - Present Situation and Future Perspectives

10:15 Special Lecture: SL16

K. NAKASAKI (JAPAN)

Degradability of Biodegradable Plastics under Controlled Composting Conditions

LECTURE SESSION 8, Chairmen: H.W. SCHNECKO (GERMANY)

P. STRAKA (CZECH REPUBLIC)

11:00 Main Lecture: ML7

C.C. LIN (REPUBLIC OF CHINA)

Recycling Technology of Poly(ethylene terephthalate) Materials

11:50 Special Lecturre: SL17

T. SPYCHAJ, D. PASZUN (POLAND)

New Trends in Chemical Recycling of Poly(ethylene terephthalate)

THURSDAY, 17 JULY

LECTURE SESSION 9, Chairmen: F.W. MADER (BELGIUM)

J. SEDLÁŘ (CZECH REPUBLIC)

09:00 Main Lecture: ML8

J. MILTZ (ISRAEL)

Approaches to Deal with the Issue of Plastic Packages and the Environment

09:50 Special Lecture: SL18

J.M. VERGNAUD (FRANCE)

Recycling of Polymers in Food Packagings: Problems of Pollutant Transport and Food Protection

10:15 Special Lecture: SL19

A.-C. ALBERTSSON, S. KARLSSON (SWEDEN)

Recycling of Inexpensive Packaging versus Expensive Engineering Materials

11:00 PANEL DISCUSSION: PD1

Future of Polymer Recycling

Discussion leader: N.M. BIKALES (U.S.A.)

LECTURE SESSION 10, Chairmen: N.M. BIKALES (U.S.A.)

J. KOVÁŘOVÁ (CZECH REPUBLIC)

14:00 Special Lecture: SL20

W. LINDNER (GERMANY)

Status Quo with Regard to the Physical Recycling of Plastic Packagings in the Federal Republic of Germany from the View of the German Society for Plastics Recycling

14:25 Special Lecture: SL21

P. MAJORANA (ITALY)

An Italian Nationwide System for Plastic Containers Recovery and Recycling: Achievements, Structure, and Products from the Consolidated Experience

14:50 Closing Lecture: ML9

W. MICHAELI (GERMANY)

Polymer Recycling - Status and Perspectives

AUTHOR INDEX

LIST OF ACTIVE PARTICIPANTS

BELGIUM

Buekens Alfons G., Department of Chemical Engineering and Industrial Chemistry (CHIS 2),
Free University of Brussels, Pleinlaan 2, B-1050 Brussels

Mader Fred W., APME - Association of Plastics Manufactures in Europe, Ave. Van Nieuwenhuyse 4, B-1160 Brussels

Vermylen Valerie, POLY, University Catholic of Louvain, Place Croix du Sud, 1, B-1348 Louvain-
-la-Neuve

CANADA

Balatinecz John J., Faculty of Forestry, Earth Sciences Centre, University of Toronto, 33 Will Cocks Street, Toronto, Ontario M5S 3B3

Kokta Bohuslav V., Centre de Recherche en Pâtes et Papiers, Université du Québec ŕ Trois-
-Rivičres, C.P. 500, Trois-Rivičres, Québec G9A 5H7

Riedl Bernard, Centre de Recherches en Sciences et Ingénierie des Macromolécules, Université Laval, Pavillon Abitiba-Price, Ste-Foy, Québec G1K 7P4

CZECH REPUBLIC

Brožek Jiří, Depatrment of Polymers, Institute of Chemical Technology, Technická 5, 16628 Praha 6

Čefelín Pavel, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Ducháček Vratislav, Department of Polymers, Institute of Chemical Technology, Technická 5,
166 28 Praha 6

Fortelný Ivan, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Horák Zdeněk, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Kolařík Jan, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Kotek Jiří, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Kovářová Jana, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Kruliš Zdeněk, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Kuta Antonín,  Department of Polymers, Institute of Chemical Technology, Technická 5,
166 28 Praha 6

Lednický František, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Mikešová Jana, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Nešpůrek Stanislav, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 169 06 Praha 6

Pospíšil Jan, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 169 06 Praha 6

Pospíšil Ladislav, Polymer Institute Brno, s.r.o., Tkalcovská 2, 656 49 Brno

Prokopová Irena, Department of Polymers, Institute of Chemical Technology, Technická 5,
166 28 Praha 6

Raab Miroslav, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, l62 06 Praha 6

Rotschová Jitka, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Rypáček František, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovskehom nám. 2, 162 06 Praha 6

Sedlář Jiří, Polymer Institute Brno, s.r.o., Tkalcovská 2, 656 49 Brno

Straka Pavel, Institute of Rock Structure and Mechanics, Academy of Sciences of the Czech Republic, 182 09 Praha 8

Strnadová Jaroslava, Institute of Macromolecular Chemistry Academy of Sciences of the Czech Republic, Heyrovského nám. 2, 162 06 Praha 6

Svoboda Pavel, Institut pro testovaní a certifikaci, a.s., Třída T.Bati 299, 764 21 Zlín-Louky

Šimek Jan, Department of Polymers, Institute of Chemical Technology, Technická 5, 166 28 Praha 6

Vaněk Pavel, Institut pro testování a certifikaci, a.s., Třída T.Bati 299, 764 21 Zlín-Louky

FRANCE

Bikales Norbert M., National Science Foundation, 2, Avenue Gabriel, F-75382 Paris Cedex 08

Brkle Dieter, Dept. of Plastics and the Environment Elf Atochem S.A., 4, cours Michelet, F-92091 Paris La Défense 10 Cedex

Vergnaud Jean M., Faculty of Sciences, University of Saint-Etienne, 23, rue Dr P.Michelon,
F-42023 Saint Etienne Cedex 2

GERMANY

Bockhorn Henning, Institut fr Chemische Technik, Universitt Karlsruhe (TH), Kaiserstrasse 12, D-76128 Karlsruhe

Brandrup Johannes, Verband Kunststofferzeugende Industrie E.V., Karlstrasse 21, D-60329 Frankfurt/Main

Lindner Wolfgang, DKR Gesellschaft fr Kunststoff-Recycling mbH, Frankfurt Str. 720-726,
D-51145 Kln

Lockmann Heinrich, VEKA Umwelttechnik GmbH, Im Strassfeld 1, D-99947 Behringen/Thur.

Mang Thomas, Laboratorium fr makromolekul.Chemie und Kunststofftechnol., FH Aaachen, Worringer Weg 1, D-52074 Aachen

Michaeli Walter, Institut fr Kunststoffverarbeitung Technische Hochschule Aachen, Pontstr. 49,
D-52062 Aachen

Mueller Peter, Bayer AG, D-51368 Leverkusen

Pfaendner Rudolf, Ciba Spezialitatenchemie GmbH, D-68619 Lampertheim

Schnecko Hans W., Kautschuk Gummi Kunststoffe, Internationale Fachzeitschrift, Postfach 1706, Wohlerstrasse 12, D-63407 Hanau

HUNGARY

Blazsó Marianne, Research Laboratory for Inorganic Chemistry, Hungarian Academy of Sciences, Budaorsi ut 45, H-1112 Budapest

Pekker Jakab Emma, Research Laboratory of Inorganic Chemistry, Hungarian Academy of Sciences, Budaorsi ut. 45, H-1112 Budapest

ISRAEL

Miltz Joseph, Department of Food Engineering & Biotechnology Technion - Israel Institute of Technology, Technion City, Haifa 32000

ITALY

Audisio Guido, Istituto de Chimica delle Macromolecule del C.N.R., Via E.Bassini 15, I-20133 Milano

Bastioli Catia, Novamont S.p.A., Via G.Fauser 8, I-28100 Novara

La Mantia Francesco Paolo, Dipartimento di Ingegneria Chimica dei Processi e dei Materiali, Universitŕ di Palermo, Viale delle Scienze, I-90128 Palermo

Majorana Pietro, Replastic, Via del Vecchio Politecnico 3, I-20121 Milano

Pracella Mariano, Centro Studi Materiali Macromoleculari Polifasici e Biocompatibili, CNR,
Via Diotisalvi 2, I-56126 Pisa

JAPAN

Arai Kunio, Department of Chemical Engineering, Tohoku University, Sendai, 980-77

Ikada Eiji, Faculty of Engineering, Kobe University, Rokkodai-cho, Nada-ku, Kobe, 657

Magoshi Yoshiko, National Institute of Sericultural and Entomological Science, 1-2 Ohwashi, Tsukuba, 305

Matsumoto Y., Kanagawa Industrial Technology Research Institute, 705-1, Shimoimaizumi,
Ebina, Kanagawa, 243-04

Murata Katsuhide, Chiba Labo., Mitsui Engineering Shipbuilding Co. Ltd., Yawatakaigan-Dori, Ichihara City, 290

Nakasaki Kiyohiko, Dept. of Material Science and Chemical Engineering, Shizuoka University, Johoku 3-5-1, Hamamatsu, 432

Okamura Keizo, Kyoto Bunka College, Nanjo, Sogabe-cho, Kameoka-city, 621

Sakata Yusaku, Department of Applied Chemistry Faculty of Engineering, Okayama University,
3-1-1 Tsushima Naka, Okayama, 700

Sato Yoshiki, National Institute for Resources and Environment, 16-3 Onagawa, Tsukuba-city, 305

Smith Richard, Department of Chemical Engineering, Tohoku University, Sendai, 980-77

Taniguchi Takashi, Department of Education, Niigata University, Igarashi 2-8050, Niigata, 950-21

Tsuge Shin, Department of Applied Chemistry Faculty of Engineering, Nagoya University,
Nagoya, 464-01

Uddin Azhar, Department of Applied Chemistry, Okayama University, 3-1-1 Tsushima Naka, Okayama, 700

MEXICO

Burillo Guillermima, Instituto de Cincias Nucleares UNAM, Ciudad Universitaria, México City, México 045100 D.F.

POLAND

Galeski Andrzej, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciencces, Sienkiwicza 112, PL-90-363 Łód

Janik Jolanta, Polymer Institute, Technical University of Szczecin, ul. Pulaskiego 10, PL-70 322 Szczecin

Kozlowski Marek, Technical University of Wroclaw, Wybrzeze Wyspianskiego 27, PL-50 370 Wroclaw

Morawiec Jerzy, Centre of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, PL-90 363 Łód

Spychaj Tadeusz, Polymer Institute, Technical University of Szczecin, ul Pulaskiego 10, PL-70 322 Szczecin

P. R. CHINA

Li Bizhong, National Engineering Research Center of Engineering Plastics, Institute of Chemistry, Chinese Academy of Sciences, Zhongguan Cun 2-1, Beijing 100080

REPUBLIC OF CHINA

Lin Chen-Chong, Institute of Materials Science and Engineering, Chiao Tung University,
1001 Ta Hsueh Road, Hsinchu, Taiwan

ROMANIA

Brebu Mihai, P.Poni Institute of Macromolecular Chemistry, Romanian Academy of Sciences,
41 Gr.Ghica Voda-Alley, RO-6600 Iasi

Vasile Cornelia, P.Poni Institute of Macromolecular Chemistry, Romanian Academy of Sciences, 41A Gr.Ghica Voda-Alley, RO-6600 Iasi

SWEDEN

Albertsson Ann-Christine, Department of Polymer Technology, The Royal Institute of Technology, S-100 44 Stockholm

Bertilsson Hans, Department of Polymeric Materials, Chalmers University of Technology, S-412 96 Gothenburg

Karlsson Sigbritt, Department of Polymer Technology, The Royal Institute of Technology, S-100 44 Stockholm

Klason Carl, Department of Polymeric Materials, Chalmers Univ. of Technology, Horsalsvagen 7,
S-412 96 Gothenburg

Xiaodong Liu, Department of Polymeric Materials, Chalmers University of Technology, S-412 96 Gothenburg

THE NETHERLANDS

Van Hartingsveldt E.A.A., DSM Research, Department PCM-CE, P.O. Box 18, 6160 MD Geleen

U.S.A.

Deanin Rudolph D., Department of Plastics Engineering, University of Massachusetts Lowell, One University Avenue, Lowell, Massachusetts 01854-2881

Kresta Jiri E., Polymer Institute, University of Detroit - Mercy, 4001 W. McNichols, E-202, Detroit, Michigan 48221

UNITED KINGDOM

Hardman Steve, BP Chemicals Ltd., Poplar House, Chertsey Road, Sunbury on Thames, Middlesex TW16 7LL

Parker Adam, Chemistry Department Science Site, University of Durham, South Road, Durham DH1 3LE

Warmington Andrew, Harriman Chemsult Ltd., 45 Britton Street, London EC1M 5NA

LIST OF ACCOMPANYING PERSONS

BALATINECZ T. (CANADA)

BRANDRUP G. (GERMANY)

BURILLO J.V. (MEXICO)

KEREN K. (ISRAEL)

IKADA M. (JAPAN)

LIN Y.-S. (TAIWAN)

MONTER A. (MEXICO)

MLLER C. (GERMANY)

OKAMURA M. (JAPAN)