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    31.
    发明专利
    未知

    公开(公告)号：DE19515943A1

    公开(公告)日：1996-11-07

    申请号：DE19515943

    申请日：1995-05-02

    Applicant: BASF AG

    Inventor： DENZINGER WALTER ,  RUEBENACKER MARTIN DR ,  NILZ CLAUDIA DR ,  LORENCAK PRIMOZ DR ,  MOENCH DIETMAR DR ,  SCHUHMACHER RUDOLF DR ,  STANGE ANDREAS DR

    IPC: C08B31/12 ,  C08F8/12 ,  C08F283/00 ,  C08F283/06 ,  C09B67/46 ,  C09D17/00 ,  D21H17/34 ,  D21H17/53 ,  D21H19/20 ,  D21H21/10 ,  D21H21/16 ,  D21H21/18 ,  C08F8/00 ,  C09B67/20 ,  D21H17/46 ,  D21H21/20

    Abstract: Graft polymers are obtained by radically initiated polymerisation of (A) monomers or monomer mixtures of (a) 10 to 100 % by weight N-vinyl carboxylic acid amides having the formula (I), in which R stands for R and C1-C6 alkyl, (b) 0 to 90 % by weight other monoethylenically unsaturated monomers that may be copolymerised with monomers (a), and (c) 0 to 5 % by weight of at least two ethylenically unsaturated monomers that contain non-conjugated double bonds in their molecule, in the presence of (B) polymers that contain at least 3 units of a C2-C4 alkylene oxide and/or polytetrahydrofuranes, in a weight ratio (A):(B) equal to (95 to 10):(5 to 80). The group (IV) is then optionally separated from the polymerised monomer (a) of the graft polymer, forming at least units having the formula (1). Also disclosed are a process for preparing said graft polymers and their use as dry and wet strength-increasing agents, as fixatives for impurities and fillers, as retention and dewatering agents for paper-making, as promoters during paper, cardboard and paperboard diketen gluing, as pigment dispersants, as starch cationising agents and as auxiliary substances for producing paper tissues.

    32.
    发明专利
    未知

    公开(公告)号：DE59303342D1

    公开(公告)日：1996-08-29

    申请号：DE59303342

    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.

    MALEIC ACID IMIDE ALPHA-OLEFIN COPOLYMERS AND THEIR USE AS LIGHT PROTECTION AGENTS AND STABILIZERS FOR ORGANIC MATERIALS
    36.
    发明专利
    MALEIC ACID IMIDE ALPHA-OLEFIN COPOLYMERS AND THEIR USE AS LIGHT PROTECTION AGENTS AND STABILIZERS FOR ORGANIC MATERIALS 未知

    公开(公告)号：SK67095A3

    公开(公告)日：1995-10-11

    申请号：SK67095

    申请日：1993-11-15

    Applicant: BASF AG

    Inventor： KRAUSE ALFRED ,  DENZINGER WALTER ,  HETTCHE ALBERT ,  AUMUELLER ALEXANDER ,  TRAUTH HUBERT

    IPC: C08L101/00 ,  C08F8/32 ,  C08F22/36 ,  C08F210/14 ,  C08F222/40 ,  C08K5/3435 ,  C09D201/00

    Abstract: Described are maleic acid imide alpha -olefin copolymers with a mean molecular weight of 1,000 to 50,000, built up of structural units of the formula I, R being a tetramethylpiperidinyl grouping of the formula II in which R is hydrogen, C1 to C6 alkyl, formyl, C2 to C6 alkanoyl, C1 to C12 alkoxy, C5 to C6 cycloalkoxy, cyanomethyl, 2-Hydroxyethyl, benzyl or a group of the formula -CR = CH-CO-OR , R being hydrogen,C1 to C6 alkyl or a group of the formula -CO-OR , and r being C1 to C18 alkyl, C5 to C8 cycloalkyl, C7 to C18 aralkyl, phenyl or tolyl, where R can also denote, in a quantity of up to 8 mole % relative to II, hydrogen, C1 to C22 alkyl or C5 to C8 cycloalkyl, and R is a mixture of C14 to C28 alkyl groups, two of these alkyl groups, which may not differ from each other by more than two C-atoms, constituting at least 30 % of this mixture. The copolymers described are suitable for use as light-protection agents and stabilizers for organic materials, particularlyplastics and paints.

    37.
    发明专利
    未知

    公开(公告)号：ES2074925T3

    公开(公告)日：1995-09-16

    申请号：ES93902186

    申请日：1993-01-14

    Applicant: BASF AG

    Inventor： DENZINGER WALTER ,  HARTMANN HEINRICH ,  WEGNER BRIGITTE

    IPC: C08F251/00 ,  C14C3/22

    Abstract: PCT No. PCT/EP93/00061 Sec. 371 Date Jun. 27, 1994 Sec. 102(e) Date Jun. 27, 1994 PCT Filed Jan. 14, 1993 PCT Pub. No. WO93/14227 PCT Pub. Date Jul. 22, 1993.Water-soluble graft polymers of monosaccharides, oligosaccharides, polysaccharides and derivatives thereof, obtainable by free radical polymerization of A) a monomer selected from, or a monomer mixture of, (a) from 20 to 100% by weight of acrylic acid or methacrylic acid or of a mixture thereof or of the alkali metal, alkaline earth metal or ammonium salts thereof, (b) from 0 to 80% by weight of other monoethylenically unsaturated monomers which are copolymerizable with the monomers (a) and (c) from 0 to 5% by weight of monomers having at least 2 ethylenically unsaturated, nonconjugated double bonds in the molecule, in the presence of B) monosaccharides, oligosaccharides, polysaccharides, oxidatively, hydrolyrically or enzymatically degraded polysaccharides, oxidized hydrolyrically degraded or oxidized enzymatically degraded polysaccharides, chemically modified mono-, oligo- or polysaccharides or a mixture of the stated compounds in a weight ratio A:B of from 95:5 to 20:80, are used as a tanning agent for the self-tanning, pretanning and simultaneous tanning of pelts and skins and for the retanning of leather and skin.

    38.
    发明专利
    未知

    公开(公告)号：DE4405621A1

    公开(公告)日：1995-08-24

    申请号：DE4405621

    申请日：1994-02-22

    Applicant: BASF AG

    Inventor： BOECKH DIETER DR ,  KISTENMACHER AXEL DR ,  DENZINGER WALTER ,  RAU IRIS DR ,  FUNHOFF ANGELIKA DR ,  BAUR RICHARD DR ,  SCHWENDEMANN VOLKER DR ,  KUD ALEXANDER DR

    IPC: C08F2/00 ,  C08F2/16 ,  C08F2/38 ,  C08F2/44 ,  C08F4/40 ,  C08F8/12 ,  C08F218/04 ,  C08F218/08 ,  C08F218/10 ,  C08F220/04 ,  C08F220/06 ,  C08F222/02 ,  C11D3/37

    Abstract: The invention relates to a process for preparing copolymers from vinyl esters and monoethylenically unsaturated carboxylic acids by the radical copolymerisation of: (a) 20 to 80 mol % vinyl esters of aliphatic monocarboxylic acids having at least two carbon atoms, (b) 80 to 20 mol % monoethylenically unsaturated carboxylic acids and, optionally, (c) 0 to 30 mol % of other monoethylenically unsaturated monomers which can be copolymerised, and/or (d) 0 to 10 mol % monomers containing at least two ethylenically unsaturated non-conjugated double bonds in the molecule, in the presence of at least one sulphur, phosphorus and/or nitrogen compound having a reducing effect and of 0.05 to 30 wt %, relative to the monomers, of at least one surfactant in an aqueous medium and in the presence of initiators and, optionally, regulators. The invention further relates to the use of the copolymers or the copolymers comprising vinyl alcohol units obtained therefrom by hydrolysis and/or oxidation, as additives for washing and cleaning agents.

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