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    123.
    发明专利
    未知

    公开(公告)号：DE1770392A1

    公开(公告)日：1972-03-16

    申请号：DE1770392

    申请日：1968-05-11

    Applicant: BASF AG

    Inventor： BRONSTERT KLAUS DR ,  BUCHHOLZ KARL DR ,  ECHTE ADOLF DR ,  HOFMANN JUERGEN

    IPC: C08F291/00 ,  C08F279/02 ,  C08F25/00

    Abstract: 1,256,296. Graft polymers. BADISCHE ANILIN- & SODA-FABRIK A.G. 9 May; 1969 [11 May, 1968], No. 23672/69. Heading C3G. An impact-resistant polymer is produced by continuous polymerization of a solution of an elastomeric polymer in a vinyl aromatic or vinylidene aromatic monomer, the starting materials being introduced into an isothermal polymerization stage where a mixture containing less than 50% by weight of solids is prepared at a temperature of 50‹ to 150‹ C. while mixing, said mixture being continuously polymerized in a downstream polymerization stage in one or more tubular reactors at a temperature of up to 250‹ C. to give a mixture containing more than 60% by weight of solids, and then freed from volatile constituents, the said starting materials, prior to being fed into the said isothermal polymerization stage, being prepolymerized to such an extent that the solids content of the mixture is from 1ÀI to 2 times the content by weight of elastomeric polymer but not more than 16% by weight. Acrylic or methacrylic acid or an alkyl ester or nitrile thereof may be copolymerized with the aromatic monomer. In the examples, the polymerization mixture comprises polybutadiene or butadiene-styrene rubber, styrene, ethylbenzene and mineral oil.

    125.
    发明专利
    未知

    公开(公告)号：DE3875256D1

    公开(公告)日：1992-11-19

    申请号：DE3875256

    申请日：1988-02-20

    Applicant: BASF AG

    Inventor： BRONSTERT KLAUS DR ,  SCHWABEN HANS-DIETER DR ,  ECHTE ADOLF DR

    IPC: C08L67/00 ,  C08L67/02

    Abstract: Impact-modified thermoplastics blend consists of (A) 99-60 (wt.)% (w.r.t. A+B) of a polymeric resin matrix of (a1) polybutylene terephthalate (PBT) or (a2) polyethylene terephthalate (PET), (B) 1-40% (w.r.t. A+B) of a soft polymeric component of (b1) 100-60% polymerised 1,4-diene monomers and (b2) 0-40% polymerised vinylaromatic and (C) 0-30% (w.r.t. 100 pts. A+B) of conventional additives. The novelty is that component B has terminal amino gps.

    128.
    发明专利
    未知

    公开(公告)号：DE3811014A1

    公开(公告)日：1989-10-19

    申请号：DE3811014

    申请日：1988-03-31

    Applicant: BASF AG

    Inventor： BUESCHL RAINER DR ,  ECHTE ADOLF DR ,  SCHULTE KONRAD DR ,  MITTNACHT HANS DR

    IPC: C08F279/00 ,  C08F279/02

    Abstract: The moulding composition contains, in each case based on A + B, from 80 to 55% by weight of a hard matrix A comprising a copolymer of at least 95% by weight of a vinyl aromatic monomer a11 having 8 to 10 carbon atoms and at least one comonomer a12 in a proportion of from 0.1 to 5% by weight, based on A, from 45 to 20% by weight of a soft phase B which is uniformly distributed in the hard matrix and has a mean particle diameter d50 (volume average) of from 3.5 to 9 mu m and is obtainable by polymerisation of the mixture of monomers a11 and a12 in the presence of an elastomer (rubber) with subsequent isolation of the target product, the comonomer a12 having the formula I in which X is an-OR , COOR or -CONHR radical and R is hydrogen or methyl and R and R are each an alkyl radical having 1 or 2 to 10 carbon atoms and carrying at least 1 OH group or an epoxide group or at least one other polar group.

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