公开(公告)号：EP1781739B1

公开(公告)日：2009-02-18

申请号：EP05777971.2

申请日：2005-08-09

申请人： BASF SE

发明人： STORK, Martin ,  BRUCHMANN, Bernd ,  EIPPER, Andreas ,  NIESSNER, Norbert ,  MC KEE, Graham, Edmund ,  WEBER, Martin ,  GOTTSCHALK, Axel ,  RIECHERS, Sven ,  STUMBE, Jean-Francois

IPC分类号： C08L33/12 ,  C08L25/12 ,  C08L51/04 ,  C08L101/00

CPC分类号： C08L33/12 ,  C08F257/02 ,  C08F279/02 ,  C08F285/00 ,  C08G63/20 ,  C08G64/0216 ,  C08L25/12 ,  C08L33/20 ,  C08L35/06 ,  C08L39/00 ,  C08L51/04 ,  C08L51/06 ,  C08L55/02 ,  C08L67/00 ,  C08L69/00 ,  C08L101/005 ,  C08L2666/04 ,  C08L2666/02 ,  C08L2666/24 ,  C08L2666/14

摘要： The invention relates to thermoplastic molding materials containing a mixture consisting of: (A) 30 to 68.99 % by weight, with regard to the sum of constituents (A), (B), (C) and (D), of a methyl methacrylate polymer; (B) 30 to 68.99 % by weight, with regard to the sum of constituents (A), (B), (C) and (D), of a copolymer obtained by polymerizing a vinyl aromatic monomer and a vinyl cyanide; (C) 1 to 39.99 % by weight, with regard to the sum of constituents (A), (B), (C) and (D), of a graft copolymer obtained from (C1) 60 to 90 % by weight, with regard to (C), of a core obtained by polymerizing a 1,3-diene and a vinyl aromatic monomer, (C2) 5 to 20 % by weight, with regard to (C), of a first graft shell obtained by polymerizing a vinyl aromatic monomer, a C1-C8 alkyl ester of methacrylic acid and a cross-linking monomer, (C3) 5 to 20 % by weight, with regard to (C), of a second graft shell comprised of an alkyl(meth)acrylate polymer, with the provision that the ratio of (C2) to (C3) ranges from 2:1 to 1:2, and; (D) 0.01 to 39 % by weight, with regard to the sum of constituents (A), (B), (C) and (D), of at least one highly branched or hyperbranched polymer selected from the group consisting of (D1) highly branched or hyperbranched polycarbonates and (D2) highly branched or hyperbranched polyesters of type Ax + By, whereby x is at least 1.1 and y is at least 2.1. The invention also relates to methods for producing these molding compounds, to the use thereof, to the shaped bodies, fibers, films and foams that can be obtained therefrom, and to demolding auxiliary agents for thermoplastic molding compounds.

公开(公告)号：EP1809699B1

公开(公告)日：2009-02-25

申请号：EP05803670.8

申请日：2005-10-28

申请人： BASF SE

发明人： STORK, Martin ,  BRUCHMANN, Bernd ,  MALZ, Hauke ,  BREULMANN, Michael

IPC分类号： C08L51/04 ,  C08L33/12 ,  C08L55/02 ,  C08L25/06 ,  C08L25/12 ,  C08K5/00

CPC分类号： C08G18/3844 ,  C08F279/02 ,  C08F279/04 ,  C08G18/3206 ,  C08G18/348 ,  C08K5/13 ,  C08K5/29 ,  C08K5/3435 ,  C08L33/10 ,  C08L33/18 ,  C08L35/06 ,  C08L51/04 ,  C08L53/00 ,  C08L55/02 ,  C08L2666/24 ,  C08L2666/04 ,  C08L2666/02

摘要： The invention relates to special thermoplastic moulding compounds comprising at least one stabiliser, which is composed of: (1) one or several polyisocyanate(s) with on average between 2 and 10 isocyanate groups per molecule; (2) at least one active ingredient group (2a), (2b) or (2c), where (2a) is 0.1 to 1.0 mol of one or several phenol-based active ingredient group(s) per mol isocyanate groups, (2b) is 0.1 to 1.0 mol of one or more active ingredient group(s) per mol isocyanate groups, based on sterically hindered amines and (2c) is 0.1 to 1.0 mol of at least two different active ingredient groups per mol isocyanate groups, whereby one active ingredient group is based on phenol and the other active ingredient group is based on sterically hindered amines and whereby the active ingredient group(s) protect(s) plastics from being damaged by heat, UV radiation, oxidation, hydrolysis or mechanical action during processing; and (3) 0 to 0.9 mol one or several auxiliary groups per mol isocyanate groups, which modify the characteristics of the stabiliser, said auxiliary groups being coupled to the polyisocyanates by means of functional groups that can react with the isocyanate groups.