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    TREATMENT PROCESS FOR (CO)POLYMERS TO ELIMINATE REST MONOMERS
    42.
    发明专利
    TREATMENT PROCESS FOR (CO)POLYMERS TO ELIMINATE REST MONOMERS 未知

    公开(公告)号：DE3365251D1

    公开(公告)日：1986-09-18

    申请号：DE3365251

    申请日：1983-04-21

    Applicant: BASF AG

    Inventor： REFFERT RUDI WILHELM ,  HAMBRECHT JUERGEN DR ,  JUNG RUDOLF H DR ,  ECHTE ADOLF DR

    IPC: C08F6/00 ,  C08F6/10 ,  C08F6/16 ,  C08F6/24 ,  C08F6/28

    Abstract: (Co)polymers which are composed of one or more monomers from the group comprising (a) the vinyl-aromatic monomers and (b) the ethylenically unsaturated monomers and furthermore contain one or more monomer components (a) or (b), or (a) and (b), as unreacted residual monomers are treated at above the glass temperature of the (co)polymer and in the presence of one or more assistants, which have been added to the (co)polymer. The assistant used is a bicyclic compound of the general formula I where X is a methylene, ethylene, 1,1-ethenyl, 1,2-ethenyl, carbonyl, azo, amino, ether or thioether group which is unsubstituted or substituted by halogen, alkyl, alkenyl, cycloalkyl, aryl, carboxyl, carboxyalkyl, an ether group or a thioether group, R1, R2, R3 and R4 are each hydrogen, halogen, alkyl, alkenyl, cycloalkyl, aryl, carboxyalkyl or nitrile, R5 and R6 are each hydrogen, halogen, alkyl or carboxyalkyl, and R7 and R8 are each hydrogen, halogen, alkyl, alkenyl, aryl, carboxyalkyl, carboxyl or nitrile.

    44.
    发明专利
    未知

    公开(公告)号：DE3444099A1

    公开(公告)日：1986-06-05

    申请号：DE3444099

    申请日：1984-12-04

    Applicant: BASF AG

    Inventor： MITULLA KONRAD DR ,  TESCH HELMUT DR ,  SCHMITT BURGHARD DR ,  MAEDER HANS-JOACHIM DR ,  HAMBRECHT JUERGEN DR

    IPC: C08G65/44 ,  C08G65/48 ,  C08G65/38

    Abstract: High molecular weight polyphenylene ethers are prepared from monohydric phenols by a conventional polycondensation, by a method in which the resulting polymers are reacted with an epoxide of the general formula (I) (I) where R1 and R2 can be identical or different and are each alkyl, cycloalkyl, aryl, aryloxy, alkoxy or carboxyalkyl, each of which may contain a further epoxide group, or C3-C20-alkyl-substituted amino, or R1 is hydrogen and R2 is one of the above groups, or R1 and R2 form part of a cycloalkyl ring.

    50.
    发明专利
    未知

    公开(公告)号：DE3414118A1

    公开(公告)日：1985-10-24

    申请号：DE3414118

    申请日：1984-04-14

    Applicant: BASF AG

    Inventor： MITULLA KONRAD DR ,  HAMBRECHT JUERGEN DR ,  ECHTE ADOLF DR ,  SWOBODA JOHANN DR ,  SIEBEL HANS-PETER DR ,  SCHWAAB JOSEF DR ,  FRANK HERBERT

    IPC: C08L51/00 ,  C08L69/00 ,  C08L51/06

    Abstract: A thermoplastic molding material consists of from 10 to 90 parts by weight of a polycarbonate A and from 90 to 10 parts by weight of a graft copolymer B having a mean particle size of from 200 to 700 nm (d50 value of the integral mass distribution). The graft polymer B is formed from an elastomer (rubber) (b1), which accounts for from 10 to 80% by weight, and a grafted shell (b2), which accounts for from 90 to 20% by weight, the percentages in each case being based on (B). The elastomer (b1) is composed of from 50 to 99.9% by weight of an alkyl acrylate, where alkyl is of 1 to 8 carbon atoms, and from 0.1 to 5% by weight of a copolymerizable polyfunctional crosslinking monomer. The grafted shell (b2) is produced in three stages and contains, as graft monomers, (b2a1) from 5 to 40% by weight of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms, in the first stage, (b2a2) from 15 to 50% by weight of a mixture of a monoethylenically unsaturated aromatic hydrocarbon of not more than 12 carbon atoms and a copolymerizable ethylenically unsaturated monomer, in a weight ratio of from 90:10 to 60:40, in the second stage, and (b2a3) from 10 to 85% by weight of an alkyl (meth)acrylate in the third stage, the percentages in each case being based on (b2).

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