62.
    发明专利
    未知

    公开(公告)号:NO784356L

    公开(公告)日:1979-06-26

    申请号:NO784356

    申请日:1978-12-22

    Applicant: BASF AG

    Abstract: 1. A water-soluble copolymer which comprises, as characteristic monomers, (a) from 80 to 2 % by weight of an ethylenically unsaturated C3 - to C5 -carboxylic acid, acryl-amidodimethylpropanesulfonic acid, vinylsulfonic acid or vinylphosphoric acid, or of an ester of the formula see diagramm : EP0003235,P8,F1 where R is H or -CH3 , n is from 1 to 4 and R**1 and R**2 are alkyls of 1 to 4 carbon atoms, or of mixtures of the said monomers, and (b) from 20 to 98 % by weight of a polymerizable ethylenically unsaturated compound of the formula see diagramm : EP0003235,P9,F2 where R**3 is alkyl of 1 to 20 carbon atoms, R**4 is H or -CH3 , R**5 is H, n is from 2 to 100 and m is from 0 to 50.

    65.
    发明专利
    未知

    公开(公告)号:DE59601843D1

    公开(公告)日:1999-06-10

    申请号:DE59601843

    申请日:1996-10-22

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/04582 Sec. 371 Date Jan. 29, 1998 Sec. 102(e) Date Jan. 29, 1998 PCT Filed Oct. 22, 1996 PCT Pub. No. WO97/16490 PCT Pub. Date May 9, 1997Homo- or copolymers A composed of A1) 40-100% by weight of monomers of the general formula I A2) 0-60% by weight of monomers of the general formula II and A3) 0-10% by weight of further monomers capable of free radical polymerization, the percentages by weight of the monomers A1) to A3) summing to 100% and R1 and R4 being identical or different radicals and each being hydrogen or C1-C4-alkyl, R2, R3, R5, R6 being identical or different radicals and each being hydrogen or C1-C4-alkyl, with the proviso that at least two radicals from the group consisting of R1, R2 and R3 and from the group consisting of R4, R5 and R6 are hydrogen, and R7 is alkyl, cycloalkyl, aryl or aralkyl, are used as branching agents for amino-containing thermoplastic polymers.

    A METHOD OF USING POLYMETHACRYLIC ACIDS AS BRANCHING AGENTS

    公开(公告)号:CA2233218A1

    公开(公告)日:1997-05-09

    申请号:CA2233218

    申请日:1996-10-22

    Applicant: BASF AG

    Abstract: The invention concerns the use of homo- or copolymers A as branching agents for thermoplastic polymers containing amino groups. The homo- or copolymers A are composed of: A1) between 40 and 100 wt.% monomers of general formula (I); A2) between 0 and 60 wt.% of monomers of general formula (II); and A3) between 0 and 10 wt.% of further radically polymerizable monomers, the weight percentages of monomers A1) to A3) totalling 100 % and the substituents having the following meanings: R1, R4, which may be identical or different, designate the rests hydrogen or C1-C4 alkyl; R2, R3, R5, R6, which may be identical or different, designate the rests hydrogen or C1-C4 alkyl, provided that at least two rests from the group R1, R2, R3 and the group R4, R5, R6 are hydrogen; and R7 designates an alkyl, cycloalkyl, aryl or aralkyl rest.

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