Global Patent Index - EP 1017740 A1

EP 1017740 A1 2000-07-12 - A METHOD FOR FORMING INTEGRAL SKIN FLEXIBLE FOAMS FROM HIGH PURITY CYCLOPENTANE AND BLEND THEREOF

Title (en)

A METHOD FOR FORMING INTEGRAL SKIN FLEXIBLE FOAMS FROM HIGH PURITY CYCLOPENTANE AND BLEND THEREOF

Title (de)

VERFAHREN ZUR HERSTELLUNG VON INTEGRALWEICHSCHAUMSTOFFEN AUS HOCHREINEN CYCLOPENTAN UND MISCHUNGEN DAVON

Title (fr)

PROCEDE POUR FORMER DES MOUSSES SOUPLES A PEAU INTEGREE A PARTIR DE CYCLOPENTANE PUR ET DE SON MELANGE

Publication

EP 1017740 A1 (EN)

Application

EP 98953232 A

Priority

  • US 9820704 W
  • US 6026797 P

Abstract (en)

[origin: WO9916816A1] A process for the preparation of polyurethane containing molded articles having a compressed peripheral zone and a cellular core is provided. The novel integral skin flexible foams according to the present invention are formed using a very stable/homogeneous high purity cyclopentane or cyclopentane/iso- or n-pentane blend blowing agent component. The molded articles are produced by introducing into a mold a mixture which comprises: (a) an organic and/or modified organic polyisocyanate, (b) at least one higher molecular weight compound having at least two reactive hydrogen atoms, (c) optionally, a lower molecular weight chain extending agent and/or cross-linking agent, (d) a blowing agent comprising high purity cyclopentane, and (e) a catalyst capable of forming a molded article having a compressed peripheral zone and a cellular core, and allowing it to react.

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

C08J 9/14; C07C 5/03; C07C 13/10

IPC 8 full level (invention and additional information)

C07C 13/10 (2006.01); C08G 18/40 (2006.01); C08J 9/14 (2006.01); C08J 9/34 (2006.01)

CPC (invention and additional information)

C08J 9/34 (2013.01); C07C 13/10 (2013.01); C08J 9/141 (2013.01); C07C 2101/08 (2013.01); C08J 2375/04 (2013.01)

Citation (search report)

See references of WO 9916816A1

Designated contracting state (EPC)

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

EPO simple patent family

WO 9916816 A1 19990408; AU 1065599 A 19990423; BR 9812567 A 20020213; CA 2305705 A1 19990408; CN 1278281 A 20001227; EP 1017740 A1 20000712; JP 2001518541 A 20011016; NO 20001629 A 20000529; NO 20001629 D0 20000329

INPADOC legal status


2003-10-15 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030401

2001-05-30 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: EXXONMOBIL CHEMICAL PATENTS INC.

- Ref Legal Event Code: RAP1

2000-07-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000428

2000-07-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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