发明授权
- 专利标题: Dispersion resins containing itaconic acid for improving wet abrasion resistance
- 专利标题(中): 含有衣康酸的分散树脂用于改善耐湿磨损性
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申请号: US09623487申请日: 2000-09-15
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公开(公告)号: US06790272B1公开(公告)日: 2004-09-14
- 发明人: Cheng-Le Zhao , Joachim Roser , Rolf Dersch , Roland Baumstark
- 申请人: Cheng-Le Zhao , Joachim Roser , Rolf Dersch , Roland Baumstark
- 优先权: DE19811314 19980316
- 主分类号: C09D502
- IPC分类号: C09D502
摘要:
The invention relates to aqueous pigment preparations containing i) at least one copolymer P of ethylenically unsaturated monomers M in the form of an aqueous polymer dispersion which contains between 0.1 and 1.5 weight %, in relation to the total weight of the copolymer P, of polymerized itaconic acid as acid monomer M1, its salts and/or anhydride, where up to 50 weight % of the itaconic acid can be substituted by another monomer having at least one acid group or a neutralized acid group, and whose glass transition temperature TG lies between −10 and +50° C.; ii) at least one inorganic pigment; iii) possibly inorganic fillers; and iv) standard additives. The invention also relates to the use of the copolymers P containing itaconic acid for improving the wet-abrasion resistance of polymer-bound coatings containing pigments.
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