公开(公告)号：EP1622958B1

公开(公告)日：2010-11-03

申请号：EP04718099.7

申请日：2004-03-05

Applicant: INVISTA Technologies S.à.r.l.

Inventor： SELLING, Gordon, W. ,  HOUSER, Nathan, E.

IPC: C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  D01F6/70

CPC classification number: D01F6/70 ,  C08G18/10 ,  C08G18/4854 ,  C08G18/7657 ,  Y10S528/906 ,  C08G18/3228 ,  C08G18/2865

Abstract: Commercially acceptable spandex can be prepared with greater efficiency, improved consistency and at lower costs from a high-solids content polyurethaneurea polymer solution. The polyurethaneurea is prepared using a combination of 4, 4'-MDI and 2,4'-MDI, and an amount of chain extenders and chain terminators such that the polymer solution, prior to spinning, is highly soluble and has an appropriate pre-spun IV and primary amine content.

公开(公告)号：EP1401946B1

公开(公告)日：2006-12-27

申请号：EP02734662.6

申请日：2002-06-04

Applicant: INVISTA Technologies S.à.r.l.

Inventor： HOUSER, Nathan, E. ,  SELLING, Gordon, W.

IPC: C08K13/02 ,  C08L75/04 ,  C08K3/26 ,  C08K5/13

CPC classification number: C08K5/13 ,  C08G18/10 ,  C08G18/3819 ,  C08K5/34924 ,  C08L75/02 ,  Y10T428/2913 ,  Y10T428/2927 ,  Y10T428/2967 ,  Y10T428/2969 ,  C08G18/2865 ,  C08G18/3228 ,  C08L75/04

Abstract: The invention provides polyurethane containing a) a first additive comprising at least one mono-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; b) a second additive selected from the group consisting of i) condensation polymers of p-cresol and divinyl benzene and ii) compounds comprising at least one unsymmetrically di-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; and c) an inorganic chlorine-resist additive. The polyurethane of the invention exhibits improved resistance to degradation by chlorine and by atmospheric fumes.

公开(公告)号：EP1622958A1

公开(公告)日：2006-02-08

申请号：EP04718099.7

申请日：2004-03-05

Applicant: INVISTA Technologies S.à.r.l.

Inventor： SELLING, Gordon, W. ,  HOUSER, Nathan, E.

IPC: C08G18/10 ,  C08G18/48 ,  C08G18/76 ,  D01F6/70

CPC classification number: D01F6/70 ,  C08G18/10 ,  C08G18/4854 ,  C08G18/7657 ,  Y10S528/906 ,  C08G18/3228 ,  C08G18/2865

Abstract: Commercially acceptable spandex can be prepared with greater efficiency, improved consistency and at lower costs from a high-solids content polyurethaneurea polymer solution. The polyurethaneurea is prepared using a combination of 4, 4'-MDI and 2,4'-MDI, and an amount of chain extenders and chain terminators such that the polymer solution, prior to spinning, is highly soluble and has an appropriate pre-spun IV and primary amine content.