102.
    发明专利
    未知

    公开(公告)号:DE50006188D1

    公开(公告)日:2004-05-27

    申请号:DE50006188

    申请日:2000-11-21

    Applicant: BASF AG

    Abstract: The invention relates to a process for the preparation of water-soluble polymers containing polyalkylene glycol ether side chains and having molecular weights of from 15,000 to 65,000 by solution polymerization of esters of ethylenically unsaturated carboxylic acids and polyalkylene glycols which are masked on the end groups at one end, if desired together with another monomer in at least one hydrocarbon at monomer concentrations of from 70 to 95% by weight in the presence of free-radical-forming polymerization initiators and, if desired, polymerization regulators at temperatures of up to 200° C., removal of the solvent used in the solution polymerization, and dissolution of the polymers in water to give from 50 to 80% strength by weight solutions, with polymers containing acid groups being neutralized if desired.

    103.
    发明专利
    未知

    公开(公告)号:AT264877T

    公开(公告)日:2004-05-15

    申请号:AT00979613

    申请日:2000-11-21

    Applicant: BASF AG

    Abstract: The invention relates to a process for the preparation of water-soluble polymers containing polyalkylene glycol ether side chains and having molecular weights of from 15,000 to 65,000 by solution polymerization of esters of ethylenically unsaturated carboxylic acids and polyalkylene glycols which are masked on the end groups at one end, if desired together with another monomer in at least one hydrocarbon at monomer concentrations of from 70 to 95% by weight in the presence of free-radical-forming polymerization initiators and, if desired, polymerization regulators at temperatures of up to 200° C., removal of the solvent used in the solution polymerization, and dissolution of the polymers in water to give from 50 to 80% strength by weight solutions, with polymers containing acid groups being neutralized if desired.

    104.
    发明专利
    未知

    公开(公告)号:DE50101617D1

    公开(公告)日:2004-04-08

    申请号:DE50101617

    申请日:2001-03-27

    Applicant: BASF AG

    Abstract: Polymers containing acid groups are modified by reaction of(a) polymers which comprise at least 5% by weight of a copolymerized monoethylenically unsaturated monomer containing acid groups, have molar masses of from 200 to 100,000 and are obtainable by free-radical polymerization of monoethylenically unsaturated acids in aqueous solution in the presence or absence of other monoethylenically unsaturated monomers and in the presence of at least 4% by weight, based on the monomers used in the polymerization, of a water-soluble sulfur compound in which the sulfur is in the oxidation state +4,with(b) polyalkylene glycols which are end-capped at one end, alkylpolyalkylene glycol amines or mixtures thereof, or mixtures of at least one of the two compounds specified with up to 30% by weight, based on the mixtures, of ammonia, amines, alcohols, hydroxycarboxylic acids or aminocarboxylic acidsat up to 250° C.

    107.
    发明专利
    未知

    公开(公告)号:BR0109615A

    公开(公告)日:2003-02-04

    申请号:BR0109615

    申请日:2001-03-27

    Applicant: BASF AG

    Abstract: Polymers containing acid groups are modified by reaction of(a) polymers which comprise at least 5% by weight of a copolymerized monoethylenically unsaturated monomer containing acid groups, have molar masses of from 200 to 100,000 and are obtainable by free-radical polymerization of monoethylenically unsaturated acids in aqueous solution in the presence or absence of other monoethylenically unsaturated monomers and in the presence of at least 4% by weight, based on the monomers used in the polymerization, of a water-soluble sulfur compound in which the sulfur is in the oxidation state +4,with(b) polyalkylene glycols which are end-capped at one end, alkylpolyalkylene glycol amines or mixtures thereof, or mixtures of at least one of the two compounds specified with up to 30% by weight, based on the mixtures, of ammonia, amines, alcohols, hydroxycarboxylic acids or aminocarboxylic acidsat up to 250° C.

    POLYMERS USED AS CONTROLLABLE DISPERSING AGENTS

    公开(公告)号:CA2410445A1

    公开(公告)日:2002-11-26

    申请号:CA2410445

    申请日:2001-06-06

    Applicant: BASF AG

    Abstract: The invention relates to polymers made out of a poly(meth)acrylic acid main chain, in which, in relation to the main chain, 0 to 30 wt. % of the (meth)acrylic acid basic units can be replaced by maleic acid (anhydride) basic units, fumaric acid basic modules or mixtures thereof; and 0 to 10 wt. % of the (meth)acrylic acid basic units can be replaced by other copolymerisable, ethylenic basic units. The polymers are also made of side chains in the form of C1-30-alkylpoly-C2-4-alkylglycols which are bound to t he main chain by means of ester groups and which have an average molecular weig ht of 250 to 10,000. The main chain and side chains make up 1 to 19 wt. % and 8 1 to 99 wt. % of the polymer respectively. The ratio and the average molecular weight of the side chains are chosen in such a way that the polymer contains free carboxyl groups. Said polymers are used as controllable dispersing agen ts for detergents or constituents thereof.

    110.
    发明专利
    未知

    公开(公告)号:DE59607328D1

    公开(公告)日:2001-08-23

    申请号:DE59607328

    申请日:1996-08-29

    Applicant: BASF AG

    Abstract: PCT No. PCT/EP96/03797 Sec. 371 Date Mar. 4, 1998 Sec. 102(e) Date Mar. 4, 1998 PCT Filed Aug. 29, 1996 PCT Pub. No. WO97/09409 PCT Pub. Date Mar. 13, 1997The use of modified polyaspartic acids which are obtainable by polycondensation of aspartic acid in the presence of, in each case based on the aspartic acid employed, (a) 2.5 to 25 mol % of amines with at least 6 carbon atoms (b) at least 2% by weight of phosphoric acid, phosphorous acid, hypophosphorous acid, polyphosphoric acids, phosphorus pentoxide, phosphonic acids or mixtures of said acids, at temperatures of at least 120 DEG C. and subsequent hydrolysis with bases to give modified polyaspartic acids with a phosphorus content of from 0.5 to 10% by weight, as additive to detergents, and detergents which contain the modified polyaspartic acids in amounts of from 0.1 to 20% by weight.

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