Global patent index - EP 1028981 A1

EP 1028981 A1 2000-08-23 - THE REACTION OF A POLYHYDROXY POLYMER OR A DERIVATIVE THEREOF WITH A LACTONE

Title (en)

THE REACTION OF A POLYHYDROXY POLYMER OR A DERIVATIVE THEREOF WITH A LACTONE

Title (de)

UMSETZUNG EINES POLYHYDROXYPOLYMEREN BZW. EINES DERIVATES DAVON MIT EINEM LACTON

Title (fr)

REACTION D'UN POLYHYDROXYPOLYMERE OU D'UN DERIVE DE CELUI-CI AVEC UNE LACTONE

Publication

EP 1028981 A1 (DE)

Application

EP 98949178 A

Priority

  • CH 255897 A
  • CH 134998 A
  • CH 151498 A
  • IB 9801734 W

Abstract (en)

[origin: WO9923118A1] The invention relates to the reaction of a polyhydroxy polymer or a derivative thereof with at least one lactone, lactam or one suited carboxylic acid in order to produce a preferably biodegradable polymer resulting in a homogenous melting, preferably by means of extrusion reaction.

IPC 1-7 (main, further and additional classification)

C08B 31/04; C08B 3/16; C08F 8/16; C08G 63/00

IPC 8 full level (invention and additional information)

C08B 3/06 (2006.01); C08B 3/16 (2006.01); C08B 31/04 (2006.01); C08B 37/00 (2006.01); C08B 37/02 (2006.01); C08B 37/04 (2006.01); C08B 37/08 (2006.01); C08B 37/12 (2006.01); C08F 8/00 (2006.01); C08F 8/16 (2006.01); C08G 63/00 (2006.01); C08G 63/664 (2006.01)

CPC (invention and additional information)

C08G 63/664 (2013.01); C08B 3/06 (2013.01); C08B 31/04 (2013.01); C08F 8/00 (2013.01); C08F 8/16 (2013.01); C08G 63/00 (2013.01)

Combination set (CPC)

C08F 8/00 + C08F 16/00

Citation (search report)

See references of WO 9923118A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IT LI NL SE

EPO simple patent family

WO 9923118 A1 19990514; AU 9554698 A 19990524; CN 1278268 A 20001227; EP 1028981 A1 20000823; JP 2001521947 A 20011113

INPADOC legal status

2003-01-02 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20020511

2002-03-20 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020131

2000-08-23 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000309

2000-08-23 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FR GB IT LI NL SE