Global Patent Index - EP 1082296 A1

EP 1082296 A1 2001-03-14 - STABILISATION OF ORGANIC POLYISOCYANATES

Title (en)

STABILISATION OF ORGANIC POLYISOCYANATES

Title (de)

STABILISIERUNG VON ORGANISCHEN POLYISOCYANATEN

Title (fr)

STABILISATION DE POLYISOCYANATES ORGANIQUES

Publication

EP 1082296 A1 (DE)

Application

EP 99913256 A

Priority

  • DE 19813136 A
  • EP 9901689 W

Abstract (en)

[origin: DE19813136C1] The use of 3,5-di-tert-butyl-4-hydroxyphenylpropionic acid esters (I) as stabilizers for organic polyisocyanates is claimed.

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

C07C 263/18; C08K 5/134

IPC 8 full level (invention and additional information)

C07C 263/18 (2006.01); C08G 18/70 (2006.01); C08K 5/134 (2006.01); C07C 265/14 (2006.01)

CPC (invention and additional information)

C07C 263/18 (2013.01)

Combination set (CPC)

C07C 263/18 + C07C 265/14

Citation (search report)

See references of WO 9948863A1

Designated contracting state (EPC)

BE DE ES FR GB IT NL

EPO simple patent family

DE 19813136 C1 19990715; AU 3145199 A 19991018; BR 9909029 A 20001205; CA 2325034 A1 19990930; CN 1294575 A 20010509; EP 1082296 A1 20010314; JP 2002507594 A 20020312; TW 461898 B 20011101; WO 9948863 A1 19990930

INPADOC legal status


2002-03-20 [R18W] WITHDRAWAL (CORRECTION)

- Effective date: 20010419

2001-06-13 [18W] WITHDRAWN

- Date of withdrawal: 20010419

2001-03-14 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001025

2001-03-14 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE ES FR GB IT NL