公开(公告)号：DE3910023A1

公开(公告)日：1990-10-04

申请号：DE3910023

申请日：1989-03-28

Applicant: BASF AG

Inventor： BAUMGARTNER EHRENFRIED DR ,  BLUMENSTEIN UWE DR ,  BUESCHL RAINER DR ,  RIEBER NORBERT DR

IPC: C08F8/06 ,  C08F8/30 ,  C08F279/00 ,  C08F279/02 ,  C08F291/00

公开(公告)号：DE3741670A1

公开(公告)日：1989-06-22

申请号：DE3741670

申请日：1987-12-09

Applicant: BASF AG

Inventor： OSTERMAYER BERTRAM DR ,  BAUMGARTNER EHRENFRIED DR ,  BUESCHL RAINER DR ,  BRANDT HERMANN DR ,  BOEHLKE KLAUS DR ,  SEILER ERHARD DR ,  MC KEE GRAHAM EDMUND DR

IPC: C08L25/04 ,  C08L51/04 ,  C08L71/12 ,  C08L77/00

Abstract: Reinforced thermoplastic molding materials containing, as essential components, (A) from 40 to 94 parts by weight of a polymer component of (a1) from 10 to 90% by weight of polyphenylene ether and (a2) from 10 to 90% by weight, based in each case on A, of a styrene polymer toughened with an acrylate rubber or with an unhydrogenated or hydrogenated polymer of a conjugated diene, (B) from 1 to 20 parts by weight of a copolymer of (b1) from 70 to 99.9% by weight of a monomer from the group consisting of styrene, alpha -methylstyrene and styrene alkylated in the nucleus or a mixture of these monomers, (b2) from 0.1 to 30% by weight of one or more compounds from the group consisting of tert-butyl acrylate and tert-butyl methacrylate, or one or more compounds from the group of compounds of the general formula I I where R1 is hydrogen or methyl and R2, R3 and R4 are each an alkyl or alkoxy group of not more than 4 carbon atoms, or of the general formula II II where n is an integer from 1 to 4 and R5, R6 and R7 are each one of the radicals stated for R2 or are each -O(CH2-CH2-O)mR8, where R8 is C1-C4-alkyl and m is 1, 2, 3 or 4, and (b3) from 0 to 10% by weight, based on the copolymer, of a further ethylenically unsaturated monomer which is copolymerizable with b1 and b2, and (C) from 5 to 50 parts by weight of a reinforcing agent, the number of parts by weight being based on 100 parts by weight of the sum of A, B and C, are prepared and used for the production of moldings.

公开(公告)号：DE59108444D1

公开(公告)日：1997-02-13

申请号：DE59108444

申请日：1991-09-19

Applicant: BASF AG

Inventor： BAUMGARTNER EHRENFRIED DR ,  HOFMANN JUERGEN ,  JUNG RUDOLF H DR ,  MOORS RAINER DR ,  SCHAECH HANSJOERG

IPC: C08F279/02 ,  C08F2/02 ,  C08F2/04 ,  C08F2/06 ,  C08F4/32 ,  C08F279/00 ,  C08F279/04

Abstract: A process for the continuous preparation of high-impact polystyrene-acrylonitrile (ABS) by the free radical-initiated polymerisation of a mixture of from 60 to 90% by weight of at least one vinyl aromatic monomer and from 10 to 40% by weight of at least one further ethylenically unsaturated monomer in the presence of from 5 to 30% by weight, based on the sum of the monomers, of polybutadiene having a solution viscosity (5% strength by weight in styrene at 25 DEG C) of from 25 to 95 mPa.s and optionally in a solvent, in at least three series-connected reactors operating essentially with no back-mixing, at reaction temperatures of from 50 to 170 DEG C, phase inversion occurring in one of the reactors, the polymerisation being carried out as far as phase inversion at a temperature of 90 DEG C or below and being initiated by free radicals formed from the decomposition of tert.-butyl peresters whose half life period at 90 DEG C is not more than 20 minutes, the polybutadiene content, based on the total reaction mixture, being at least 10% by weight, and at most 25% of the entire amount of chain-transfer agent (regulator) required being added before phase inversion and the remainder thereafter.

公开(公告)号：DE58905531D1

公开(公告)日：1993-10-14

申请号：DE58905531

申请日：1989-11-10

Applicant: BASF AG

Inventor： OSTERMAYER BERTRAM DR ,  MUEHLBACH KLAUS DR ,  BAUMGARTNER EHRENFRIED DR ,  BRANDT HERMANN DR ,  FELDMANN HEIKE DR

IPC: C08G65/48 ,  C08L71/02 ,  C08L71/12

公开(公告)号：DE4030352A1

公开(公告)日：1992-04-02

申请号：DE4030352

申请日：1990-09-26

Applicant: BASF AG

Inventor： BAUMGARTNER EHRENFRIED DR ,  HOFMANN JUERGEN ,  MOORS RAINER DR ,  SCHAECH HANS-JOERG

IPC: C08F279/02 ,  B01J19/18 ,  C08F279/00 ,  C08F279/04

公开(公告)号：DE4030351A1

公开(公告)日：1992-04-02

申请号：DE4030351

申请日：1990-09-26

Applicant: BASF AG

Inventor： MOORS RAINER DR ,  BAUMGARTNER EHRENFRIED DR ,  HOFMANN JUERGEN ,  SCHAECH HANS JOERG ,  BUESCHL RAINER DR

IPC: C08F279/04 ,  C08F279/00 ,  C08F285/00 ,  C08F287/00 ,  C08L51/00

Abstract: Rubber-modified, high-impact acrylonitrile/butadiene/styrene (ABS) moulding compositions, as obtained by polymerisation of styrene and acrylonitrile in the presence of a preformed rubber, dissolved in monomeric styrene and acrylonitrile and optionally a solvent, containing, as rubber, a styrene-butadiene block copolymer and at least one further polymer which is compatible with styrene-butadiene block rubber or its polystyrene component and is incompatible with polystyrene-acrylonitrile.

公开(公告)号：DE4002261A1

公开(公告)日：1991-08-01

申请号：DE4002261

申请日：1990-01-26

Applicant: BASF AG

Inventor： OSTERMAYER BERTRAM DR ,  MUEHLBACH KLAUS DR ,  BAUMGARTNER EHRENFRIED DR

IPC: C08L51/04 ,  C08L71/12

公开(公告)号：DE3930094A1

公开(公告)日：1991-03-14

申请号：DE3930094

申请日：1989-09-09

Applicant: BASF AG

Inventor： HEDTMANN-REIN CAROLA DR ,  OSTERMAYER BERTRAM DR ,  CZAUDERNA BERNHARD DR ,  FELDMANN HEIKE DR ,  MUEHLBACH KLAUS DR ,  BAUMGARTNER EHRENFRIED DR

IPC: C08G65/44

公开(公告)号：DE3923232A1

公开(公告)日：1991-01-24

申请号：DE3923232

申请日：1989-07-14

Applicant: BASF AG

Inventor： HEDTMANN-REIN CAROLA DR ,  BAUMGARTNER EHRENFRIED DR ,  OSTERMAYER BERTRAM DR ,  BRANDT HERMANN DR

IPC: C08G65/44

Abstract: Process is for prodn. of high-mol. wt. polyphenylene ethers. (I) from monohydric phenols with alkyl or aryl substits. in the 2 ortho positions or also in one meta position but not in the para position (II), by oxidative coupling with oxygen at 20-60 deg.C in the presence of a complex catalyst consisting of a Cu salt and an organic amine (III), in a 6-10C aromatic hydrocarbon solvent, and working up the polycondensate soln. obtd.; the novelty is that (III) is an amine of formula (I)-(V) (where R1-R6 = (1-(r-methylpiperidinyl) or Ph-CH2CH2CH2-; R2 = 1-2C alkyl; R3, R4, R5, R6 = H or 1-4C alkyl). Pref. (III) is piperazine or N,N'-dimethylpiperazine. USE/ADVANTAGE - (I) are used for prodn. of moulded components. The process enables the prodn. of high-mol. wt. (I) in a relatively short reaction time (w.r.t. prior-art processes), with smaller amts. of coloured by-prods., etc..

公开(公告)号：DE4010511A1

公开(公告)日：1990-10-11

申请号：DE4010511

申请日：1990-04-02

Applicant: BASF AG

Inventor： BAUMGARTNER EHRENFRIED DR ,  BRONSTERT KLAUS DR ,  BUESCHL RAINER DR ,  WALTER HANS-MICHAEL DR ,  WAGNER DANIEL DR

IPC: C08L25/12 ,  C08L25/14 ,  C08L53/02

Abstract: The moulding materials (I) contain at least 20 wt.% block (A), 5-95 wt.% copolymer of cyclohexyl (meth)acrylate and up to 95 wt.% styrene (B) and 5-95 wt.% unmodified or elastomer-modifed copolymer (C) obtd. by radical polymerisation of 5-95 wt.% styrene, 5-95 wt.% acrylonitrile and up to 40 wt.% of a separately-produced elastomer with Tg below 0 deg.C; (A) is a linear or branched copolymer or a mixt. thereof, obtd. by anionic polymerisation of 40-95 wt.% styrene and 5-60 wt.% butadiene Pref., (I) contain the usual additives. (B) is pref. a blcok copolymer obtd. by anioic polymerisation, or a homopolymer of cyclohexyl (meth)acrylate or a copolymer obtd. by radical polymerisation. USE/ADVANTAGE - (I) are useful esp. for the prodn. of equipment housings, sheet, film, tubing and toys, by injection moulding, deep drawing, etc.. Incorporation of (B) as compatibility promoter reduces or prvents the loss in impact strength caused by adding S/A copolymers to SB block copolymers to improve chemical and thermal stability.