公开(公告)号：DE19923906A1

公开(公告)日：2000-11-30

申请号：DE19923906

申请日：1999-05-26

Applicant: BASF AG

Inventor： BAUER STEPHAN ,  BRONSTERT BERND ,  MOEHWALD HELMUT ,  NEUS MICHAEL ,  BURKHARDT UWE

IPC: C08J5/18 ,  C08K3/00 ,  C08K5/00 ,  C08K7/16 ,  C08L101/12 ,  G02F1/15 ,  C09K9/00

公开(公告)号：DE19741720A1

公开(公告)日：1999-03-25

申请号：DE19741720

申请日：1997-09-22

Applicant: BASF AG

Inventor： BAUER STEPHAN DR ,  CZECH ERWIN DR ,  NEUS MICHAEL

IPC: C08G63/02 ,  C08G81/02 ,  C08L25/02 ,  C08L77/00 ,  G03G9/087 ,  C08G63/12 ,  C08F212/00 ,  C08G63/127 ,  C08G63/668 ,  C08G63/78 ,  C08G69/44 ,  C08L25/04

Abstract: Polymer compositions are obtained by preparing prepolymers (A) with a mixture of: (a) 60-999.999 wt. % styrene derivative; (b) 0-40 wt.% monounsaturated comonomer(s); (c) 0-20 wt.% hydroxylated (meth)acrylic derivative(s); and (d) 0.001-20 wt.% cross-linking monomer with 2 or more functional groups undergoing free radical polymerization; then poly condensing a mixture of ( alpha ) 5-95 wt.% prepolymer (A), ( beta ) 0-95 wt.% polyol, polyester and/or polyamide and ( psi ) 5-95 wt.% aliphatic and/or aromatic di- or polycarboxylic acid(s), 1-20 C hydrocarbyl ester(s) and/or anhydride(s). Monomer (a) comprises styrene (derivative) of formula (I): R1, R2, R3 = hydrogen (H), methyl (Me) or ethyl (Et); n = 1 or 2. Comonomers (b) are selected from 1-12 carbon (C) alkyl (meth)acrylates, (meth)acrylonitrile, (meth)acrylamide, optionally N-mono- or disubstituted by 1-4 C alkyl, maleic anhydride or maleamide, optionally N-substituted by 1-4 C alkyl. If no monomer (c) is used, hydroxyl (OH) groups are incorporated in prepolymer (A) using a regulator containing OH groups. An Independent claim is also included for the preparation of the composition in this way.