发布时间:2017-05-12 来源: 点击量:1937
专利类型: 发明专利
申请号: EP13731408
申请日期: 2013-06-11
公开号: EP2870205B1
公开日期: 2016-10-19
申请人: COATEX SAS
发明人: BOUZID MEHDI;SUAU JEAN-MARC;RUHLMANN DENIS;GUERRET OLIVIER
地址:
摘要: The present invention concerns the use of new additives in a paint formulation comprising titanium dioxide particles (Ti02) as agents improving the opacity of the dry or drying film, and paint formulations comprising such agents.
主权项: Use, in an aqueous paint formulation containing titanium dioxide particles, as an agent for improving the opacity of the film that is dry or in the process of drying, of a water-soluble copolymer consisting of: a) 4 to 25% by weight of acrylic acid and/or methacrylic acid monomers and/or any of their salts, b) 75 to 96% by weight of at least one monomer with the formula (I): ????????R-X-R'?????(I) according to which: R represents a polymerizable unsaturated function, notably acrylate, methacrylate, methacrylurethane, vinyl or allyl, R' represents hydrogen or an alkyl group having from 1 to 4 carbon atoms, X represents a structure with n unit(s) of ethylene oxide EO and m unit(s) of propylene oxide PO, arranged randomly, m and n are 2 integers between 0 and 100, at least one of which is non-zero, and are such that m+n is greater than 17, said copolymer having a molecular mass between 200,000 and 50,000,000 g/mol.
专利分类号: C09D129/10;C09D133/14;C09D4/06;C09D7/02;C09D133/02
专利状态: 有效专利
代理人:
代理机构: Balmefrezol, Ludovic Francis Pierre
国家及地区:
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