Global Patent Index - EP 0973721 A1

EP 0973721 A1 2000-01-26 - PROCESS FOR HYDROXYALKYLATING CARBOXYLIC ACID-FUNCTIONALIZED MATERIALS

Title (en)

PROCESS FOR HYDROXYALKYLATING CARBOXYLIC ACID-FUNCTIONALIZED MATERIALS

Title (de)

VERFAHREN ZUR HYDROXYALKYLIERUNG VON CARBONSÄURE FUNKTIONALISIERTEN MATERIALIEN

Title (fr)

PROCEDE D'HYDROXYALKYLATION DE MATIERES FONCTIONNALISEES PAR DE L'ACIDE CARBOXYLIQUE

Publication

EP 0973721 A1 (EN)

Application

EP 98902804 A

Priority

  • US 9800862 W
  • US 3571797 P

Abstract (en)

[origin: WO9831655A1] The present invention relates to a process for hydroxyalkylating terminal carboxylic acid groups. More specifically, this invention provides a process for preparing hydroxyl-functionalized materials, such as butadiene nitrile polymers, from carboxylic acid-functionalized materials, such as butadiene nitrile polymers, using a carbocyclic carbonate, such as ethylene carbonate, or a carbocyclic sulfite, such as ethylene sulfite.

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

C07C 67/24; C07C 69/82; C08F 8/00; C08F 8/14; C08G 63/42

IPC 8 full level (invention and additional information)

C08G 18/67 (2006.01); C08C 19/36 (2006.01); C08F 8/00 (2006.01); C08F 8/14 (2006.01)

CPC (invention and additional information)

C08C 19/36 (2013.01); C08G 18/3234 (2013.01); C08G 18/672 (2013.01)

Combination set (CPC)

C08G 18/672 + C08G 18/69

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9831655 A1 19980723; AU 5961098 A 19980807; EP 0973721 A1 20000126; EP 0973721 A4 20000510; JP 2001509205 A 20010710

INPADOC legal status


2006-08-25 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Document: HK 1024461

2005-06-01 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20041125

2001-05-30 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20010419

2000-05-10 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20000324

2000-05-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A4

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-05-10 [RIC1] CLASSIFICATION (CORRECTION)

- Free text: 7C 07C 67/24 A, 7C 07C 69/82 B, 7C 08F 8/00 B, 7C 08F 8/14 B, 7C 08G 63/42 B, 7C 08C 19/36 B

2000-01-26 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990809

2000-01-26 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE