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    121.
    发明专利
    未知

    公开(公告)号：FI963778A0

    公开(公告)日：1996-09-23

    申请号：FI963778

    申请日：1996-09-23

    Applicant: BASF AG

    Inventor： HARTMANN HEINRICH ,  DENZINGER WALTER ,  NILZ CLAUDIA

    IPC: C05G3/00 ,  C08F263/00 ,  C08F265/00 ,  C08F271/00 ,  C09B67/00 ,  C09B67/46 ,  C09D17/00 ,  C09K17/20 ,  C09K23/00 ,  C09K23/52 ,  C11D3/37 ,  D21H17/34 ,  C08F

    Abstract: PCT No. PCT/EP95/00912 Sec. 371 Date Oct. 24, 1996 Sec. 102(e) Date Oct. 24, 1996 PCT Filed Mar. 3, 1995 PCT Pub. No. WO95/25759 PCT Pub. Date Sep. 28, 1995Graft polymers which contain N-vinyl units and in which the grafting base is a polymer which contains in each case at least 5% by weight of units of the formulae (I) (II) where R1 and R2 are each H or C1-C6-alkyl, monoethylenically unsaturated monomers are grafted onto the grafting base in a weight ratio of from 100:1 to 1:100, and which have K values of at least 7 (determined according to H. Fikentscher in 5% strength by weight aqueous solution at 25 DEG C. and pH 7), are prepared by polymerization of monoethylenically unsaturated monomers in the presence of polymers which in each case contain at least 5% by weight of units of the formulae I and/or II as the grafting base in a weight ratio of from 100:1 to 1:100, and are used as dispersants for pigments, as additives for detergents and cleaning agents, and strength agents for paper and as soil stabilizers and for fertilizer compaction.

    122.
    发明专利
    未知

    公开(公告)号：AT140637T

    公开(公告)日：1996-08-15

    申请号：AT94904174

    申请日：1993-12-22

    Applicant: BASF AG

    Inventor： KLINGELHOEFER PAUL ,  DENZINGER WALTER ,  REYNOLDS MIKE ,  HARTMANN HEINRICH

    IPC: C04B24/26 ,  C08F8/14 ,  C09B67/20 ,  C09B67/46 ,  C09D17/00 ,  C09K23/00 ,  C09K23/52 ,  B01F17/00

    Abstract: The invention concerns the use, as dispersants for aqueous pigment suspensions, of partially esterified copolymers obtained by the copolymerization of (a) at least one C4 to C28 olefin and (b) ethylenically unsaturated dicarboxylic acid anhydrides with 4 to 8 C-Atoms in the molar ratio of 1:0.5 to 1:2 and the subsequent partial esterification of the copolymer with reaction products of (A) C1 to C30 alcohols, C8 to C22 fatty acids, C1 to C12 alkylphenols or secondary C2 to C30 amines and (B) at least one C2 to C4 alkylene oxide or tetrahydrofuran in the molar ratio (A):(B) of 1:2 to 1:200, and hydrolysis of the anhydride groups in the copolymer to give carboxyl groups, the partial esterification of the copolymer being carried out to an extent such that 1 to 50 % of the carboxyl groups in the copolymer are esterified. The invention also concerns pigment suspensions containing such partially esterified copolymers.

    127.
    发明专利
    未知

    公开(公告)号：DE4435425A1

    公开(公告)日：1996-04-11

    申请号：DE4435425

    申请日：1994-10-04

    Applicant: BASF AG

    Inventor： RUEBENACKER MARTIN DR ,  SCHNEIDER REINHARD DR ,  NIEBERLE JUERGEN DR ,  HARTMANN HEINRICH DR ,  DENZINGER WALTER ,  KISTENMACHER AXEL DR

    IPC: C08F2/32 ,  C08F6/18 ,  C08F6/22 ,  C08F220/04 ,  C08F210/14

    Abstract: The invention concerns agglomerated particles of finely divided polymers which are water-soluble or capable of swelling in water and contain ammonium carboxlyate groups, and a process for their preparation by azeotropic dehydration of water-in-oil emulsions of the polymers, which are water-soluble or capable of swelling in water and contain ammonium carboxylate groups, in the presence of 0.1 to 40 wt %, relative to the polymers, of polyalkylene glycols, which have an agglomerating effect and are obtained by the addition of C2 to C4 alkylene oxides to alcohols, phenols, amines or carboxylic acids and which contain at least two alkylene oxide units incorporated by polymerization, and additionally from 0.1 to 20 wt %, relative to the polymers, of protective colloids which are obtained by radical copolymerization of C8 to C40 mono-olefins with monoethylenically unsaturated C4 to C6 dicarboxylic acid anhydrides in the manner of a substance polymerization at temperatures from 80 to 300 DEG C to form copolymers having molar masses of 500 to 20,000 g/mol. The invention further concerns the use of the agglomerated polymer particles as thickeners for textile pigment printing inks.

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