公开(公告)号：DE19928675A1

公开(公告)日：2000-12-28

申请号：DE19928675

申请日：1999-06-23

Applicant: BASF AG

Inventor： ARLT ANDREAS ,  RODEWALD DIETER ,  SCHUPP THOMAS

IPC: C08G18/20 ,  C08G18/48 ,  C08K3/30 ,  C08K5/098 ,  C08L75/04 ,  C08K3/10 ,  C08K5/56

Abstract: Deactivation of amine catalysts in polyisocyanate polyaddition products (PIPAP) after their preparation in order to avoid the formation of primary amines, especially primary aromatic amines, by means of additives which decrease the content of these amines, especially in soft polyurethane foams, i.e. by addition of groups I, II, and or VIII subgroups, is new.

公开(公告)号：DE10027566A1

公开(公告)日：2001-12-06

申请号：DE10027566

申请日：2000-06-02

Applicant: BASF AG

Inventor： LUTTER HEINZ-DIETER ,  SCHUPP THOMAS ,  RODEWALD DIETER ,  ARLT ANDREAS ,  BRUCHMANN BERND

IPC: C08G18/78 ,  C08G18/79 ,  C08G18/77 ,  C08J9/22 ,  B29C44/02 ,  B68G5/02

Abstract: Use of isocyanates (I) containing allophanate-, biuret- and/or uretedione structures for the production of polyisocyanate-polyaddition products for the reduction of the aromatic amine content in polyisocyanate-polyaddition products. An Independent claim is also included for the use of the isocyanates (I) for the production of polyurethane foams (II).

公开(公告)号：CA2242980A1

公开(公告)日：1999-02-26

申请号：CA2242980

申请日：1998-08-25

Applicant: BASF AG

Inventor： GASSAN MICHAEL ,  CHAKRABARTI SARBANANDA ,  NABER BERNHARD ,  SCHUPP THOMAS

IPC: C07C29/88 ,  C07C31/18 ,  C07C31/20 ,  C08G18/28 ,  C08G18/32 ,  C08G18/76 ,  C08G18/83 ,  C08J11/24

Abstract: In a process for reducing the primary amine content of a composition comprising at least one polyol, in which a composition comprising at least one polyol is admixed with at least one isocyanate which contains only secondary and/or tertiary, aliphatically bound isocyanate groups, isocyanate is added in an amount of up to 5 % by weight, based on the total composition, and a polyol preparation is obtained.