发明授权
- 专利标题： Use of an acrylic dispersing agent—associative thickener pair in an alkide paint for improving the retention of its gloss level
- 专利标题（中）： 在烷烃涂料中使用丙烯酸分散剂缔合增稠剂对以改善其光泽度的保留
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申请号： US12988696申请日： 2009-04-29
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公开(公告)号： US08329809B2公开(公告)日： 2012-12-11
- 发明人: Denis Ruhlmann , Jean-Marc Suau
- 申请人： Denis Ruhlmann , Jean-Marc Suau
- 申请人地址： FR Genay
- 专利权人： Coatex S.A.S.
- 当前专利权人： Coatex S.A.S.
- 当前专利权人地址： FR Genay
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： FR0802601 20080514
- 国际申请： PCT/IB2009/005522 WO 20090429
- 国际公布： WO2009/138840 WO 20091119
- 主分类号： C08L33/00
- IPC分类号： C08L33/00 ; C09B67/00
摘要：
The invention consists of the use, in an alkide resin formulation in an aqueous phase, of a dispersing agent/thickener pair: the dispersing agent is a copolymer of (meth)acrylic acid with an oxyalkylated monomer possessing a polymerizable function and terminated by hydrogen or an alkyl group having from 1 to 4 carbon atoms, the thickener is an associative thickener containing at least one hydrophobic group which is a polystyrylphanyl, preferentially chosen from among distyrylphenyl, tristyrylphenyl, and mixtures thereof, and which is very preferentially tristyrylphenyl. This combination makes it possible to improve the brightness level retention of the paint film over time, while ensuring that the aqueous formulation has the desired rheology.
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