- 专利标题： (Meth)acrylic comb polymer containing a (meth)acrylic ester as a dispersing and anti-defoaming agent in an aqueous suspension of calcium sulfate hemihydrate
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申请号： US12761435申请日： 2010-04-16
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公开(公告)号： US09950956B2公开(公告)日： 2018-04-24
- 发明人: Jean-Marc Suau , Yves Kensicher
- 申请人： Jean-Marc Suau , Yves Kensicher
- 申请人地址： FR Genay
- 专利权人： COATEX
- 当前专利权人： COATEX
- 当前专利权人地址： FR Genay
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： FR0953525 20090528
- 主分类号： C04B28/14
- IPC分类号： C04B28/14 ; C04B24/26 ; C04B103/00 ; C04B103/40 ; C04B103/50 ; C04B111/00
摘要：
This invention relates to the use, in a foamy aqueous suspension of calcium sulfate hemihydrate, as an agent having the dual function of being a dispersing agent and an anti-defoaming agent, of a comb polymer made up of (meth)acrylic acid, a monomer which is an alcoxy- or hydroxy-polyalkylene glycol, and an ester of (meth)acrylic acid. It also relates to the aqueous suspensions thereby formed, and the plasterboard manufactured from 2 sheets of paper containing a body resulting from the drying of said suspensions.
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