METHOD FOR PRODUCING AQUEOUS SOLUTION OF COPOLYMER

    公开(公告)号:JP2004010895A

    公开(公告)日:2004-01-15

    申请号:JP2003159844

    申请日:2003-06-04

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an aqueous solution of a copolymer, wherein the time of occupation of a reactor for producing an aqueous solution of a copolymer can be shortened by avoiding or reducing foaming. SOLUTION: In producing an aqueous solution of a copolymer comprising (a) 50-99.5 mass% of at least one ethylenically unsaturated monocarboxylic acid and/or dicarboxylic acid (monomer A), (b) 0.5-50 mass% of at least one ethylenically unsaturated compound (monomer B) selected from an ester of an amine having at least one hydroxy group with an ethylenically unsaturated monocarboxylic acid, and a monoester and diester of the amine with an ethylenically unsaturated dicarboxylic acid, and (c) up to 20 mass% of at least one other monomer (monomer C), the monomers A, B and C are polymerized in an aqueous medium in the presence of at least one foam inhibitor. COPYRIGHT: (C)2004,JPO

    METHOD FOR PRODUCING ALKYLPOLYALKYLENE GLYCOL ESTERS OF MONOETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS
    6.
    发明申请
    METHOD FOR PRODUCING ALKYLPOLYALKYLENE GLYCOL ESTERS OF MONOETHYLENICALLY UNSATURATED CARBOXYLIC ACIDS 审中-公开
    用于生产ALKYLPOLYALKYLENGLYCOLESTERN单烯属不饱和羧酸

    公开(公告)号:WO0250160A3

    公开(公告)日:2002-08-29

    申请号:PCT/EP0114784

    申请日:2001-12-14

    CPC classification number: C08G65/3322

    Abstract: The invention relates to a method for producing alkylpolyalkylene glycol esters of monoethylenically unsaturated carboxylic acids by esterifying (a) monoethylenically unsaturated carboxylic acids with (b) polyalkylene glycols which are closed on one side by terminal groups, in a substance in the presence of polymerisation inhibitors and esterification catalysts at temperatures of 160 DEG C at the most. The esterification is first carried out at atmospheric pressure or at pressures of up to 50 bar, the water produced during the esterification is then distilled from the reaction mixture at a pressure of between 10 and 500 mbar, and the esterification is then continued at atmospheric pressure or at pressures of up to 50 bar.

    Abstract translation: 一种用于通过在聚合抑制剂和酯化催化剂在温度不超过160℃,其中所述酯化首先在大气压下进行的情况下进行酯化的(a)单烯键式不饱和羧酸与(b)中的聚亚烷基二醇,其封端的一侧上,在物质制备Alkylpolyalkylenglykolestern单烯属不饱和羧酸的过程 或加压下进行达50巴,然后蒸馏所得水在酯化的从反应混合物中10至500毫巴的压力下,然后在大气压或压力下继续酯化酒吧高达50次

    7.
    发明专利
    未知

    公开(公告)号:AT297957T

    公开(公告)日:2005-07-15

    申请号:AT01986413

    申请日:2001-12-14

    Applicant: BASF AG

    Abstract: Alkylpolyalkylene glycol esters of monoethylenically unsaturated carboxylic acids are prepared by esterifying (a) monoethylenically unsaturated carboxylic acids with (b) polyalkylene glycols which are endcapped at one end, in the absence of a solvent and in the presence of polymerization inhibitors and esterification catalysts at not more than 160° C. by a process in which the esterification is first carried out under atmospheric pressure or at up to 50 bar, the water formed in the esterification is then distilled from the reaction mixture at from 10 to 500 mbar and the esterification is then continued under atmospheric pressure or at up to 50 bar.

    8.
    发明专利
    未知

    公开(公告)号:ES2095988T3

    公开(公告)日:1997-03-01

    申请号:ES92112512

    申请日:1992-07-22

    Applicant: BASF AG

    Abstract: Polymers of ethylenically unsaturated compounds containing at least one covalently bonded N atom in the molecule, polymerised in the presence of monosaccharides, oligosaccharides, polysaccharides or derivatives thereof, obtainable by free-radical-initiated copolymerisation of (A) monomers or monomer mixtures from the group consisting of (a) N-vinylimidazoles which are substituted on the heterocyclic ring by up to three C1- to C12-alkyl radicals and can be present in N-quaternary form or in salt form, (b) five- to eight-membered N-vinyllactams which can be substituted on the ring by up to three C1- to C12-alkyl radicals, (c) dialkylaminoalkyl acrylates or methacrylates which have a total of up to 30 C atoms in the dialkylaminoalkyl radical and can be present in N-quaternary form or in salt form, (d) N-(dialkylaminoalkyl)acrylamide or N-(dialkylaminoalkyl)methacrylamide which has a total of up to 30 C atoms in the dialkylaminoalkyl radical and can be present in N-quaternary form or in salt form, and (e) diallyl-C1- to C12-alkylamines or salts thereof or diallyldi(C1- to C12-alkyl) ammonium compounds, where as further comonomers to (A) additionally (f) monoethylenically unsaturated C3- to C10-carboxylic acids and alkali metal salts, alkaline earth metal salts or ammonium salts thereof, (g) monoethylenically unsaturated C3- to C10-carboxylic acid esters and (h) small amounts of compounds containing at least two ethylenically unsaturated, non-conjugated double bonds in the molecule can be present, in the presence of (B) monosaccharides, oligosaccharides, polysaccharides, thermally or mechanically treated, oxidatively, hydrolytically or enzymatically degraded polysaccharides, oxidised, hydrolytically or enzymatically degraded polysaccharides, chemically modified mono-, oligo- and polysaccharides or mixtures of the aforementioned compounds (B) in the ratio by weight (A):(B) of (95 to 20):(5 to 80). The polymers are suitable for use as film-forming conditioners in cosmetic preparations and as stabilisers for perfumes and perfume oils.

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