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    New copolymer, formed from monoethylenic unsaturated dicarboxylic acid derivative and two different monoethylenic unsaturated monomers, useful as corrosion inhibitors and additives to aqueous systems
    7.
    发明专利
    New copolymer, formed from monoethylenic unsaturated dicarboxylic acid derivative and two different monoethylenic unsaturated monomers, useful as corrosion inhibitors and additives to aqueous systems 未知

    公开(公告)号：DE102005061320A1

    公开(公告)日：2007-06-21

    申请号：DE102005061320

    申请日：2005-12-20

    Applicant: BASF AG

    Inventor： GOETHLICH ALEXANDER ,  VANDERMEULEN GUIDO ,  WITTELER HELMUT ,  FERNANDEZ GONZALEZ MONICA

    IPC: C08F226/06 ,  C08F222/06 ,  C08F222/08 ,  C08F226/02

    Abstract: Copolymer, formed from 1-99 mol.% of at least one monoethylenic unsaturated dicarboxylic acid derivative (I), 99-1 mol.% of at least one further monoethylenic unsaturated monomer (II) with a structural unit that is different from (I) and optionally 0-30 mol.% of at least one further ethylenic unsaturated monomer (III) with structural units that is different from (I) and (II) is new. Copolymer, formed from 1-99 mol.% of at least one monoethylenic unsaturated dicarboxylic acid derivative (I) of formulae (Ia-If), 99-1 mol.% of at least one further monoethylenic unsaturated monomer (II) with a structural unit that is different from (I) and optionally 0-30 mol.% of at least one further ethylenic unsaturated monomer (III) having structural units that is different from (I) and (II), where the quantities of the monomers are related respectively to the total quantity of all monomeric units in the copolymer, is new. R 1>(n+1)-valenced 1-40C hydrocarbon (where non adjacent carbon atom is substituted with O and/or N); either R 2>, R 3>H, CH 3, 2-6C alkyl; or R 2>+R 3>1,3-propylene or 1,4-butylene; R 4>H, 1-10C hydrocarbon or -(R 1>-X 1>n); M : H or cation; X 1>functional group such as -SR 5>, -CSNR 5>2or CN; R 5>H or 1-6C hydrocarbon; and n : 1-3. Independent claims are also included for: (1) a method for preparing copolymers in which an unmodified copolymer is prepared from 1-99 mol.% of structural unit of formula(e) (IId1) and/or (IId2) from unmodified monoethylenic unsaturated dicarboxylic acid, their salts or anhydrides and 99-1 mol.% of at least one further monoethylenic unsaturated monomer (II) and optionally 0-30 mol.% a further monomer (III), comprising reacting the unmodified copolymer with difunctional alcohol of formula HO-R 1>-X61 nand/or difunctional amine of formula HR 4>N-R 1>-X 1>nto form a modified copolymer; and (2) a copolymer obtained by the above method. [Image] [Image] [Image] [Image].

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