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

Citation (search report)

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2006-08-25 [REG HK WD] APPLICATIONS WITHDRAWN, DEEMED TO BE WITHDRAWN, OR REFUSED AFTER PUBLICATION IN HONG KONG

- Ref Country Code: HK

- Ref Legal Event Code: WD

- Ref Document Number: 1024461

- Country of Ref Document: HK

2005-06-01 [18D] DEEMED TO BE WITHDRAWN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