发明授权
US08552109B2 Aqueous polyurethane resin dispersion, preparation method of the same, and coating composition containing the same
失效
水性聚氨酯树脂分散体及其制备方法以及含有它们的涂料组合物
- 专利标题： Aqueous polyurethane resin dispersion, preparation method of the same, and coating composition containing the same
- 专利标题（中）： 水性聚氨酯树脂分散体及其制备方法以及含有它们的涂料组合物
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申请号： US12994692申请日： 2009-05-28
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公开(公告)号： US08552109B2公开(公告)日： 2013-10-08
- 发明人: Taku Nakamura , Masahiro Naiki , Atsushi Morikami , Fumio Adachi , Manabu Takahashi
- 申请人： Taku Nakamura , Masahiro Naiki , Atsushi Morikami , Fumio Adachi , Manabu Takahashi
- 申请人地址： JP Ube-shi, Yamaguchi
- 专利权人： Ube Industries, Ltd.
- 当前专利权人： Ube Industries, Ltd.
- 当前专利权人地址： JP Ube-shi, Yamaguchi
- 代理机构： Birch, Stewart, Kolasch & Birch, LLP
- 优先权： JP2008-140474 20080529
- 国际申请： PCT/JP2009/059735 WO 20090528
- 国际公布： WO2009/145242 WO 20091203
- 主分类号： C08G18/08
- IPC分类号： C08G18/08 ; C08G18/28 ; C08J3/00 ; C08K3/20 ; C08L75/00
摘要：
Disclosed is an aqueous polyurethane resin dispersion which comprises a polyurethane resin which is obtained by reacting (A) a polyurethane prepolymer obtained by reacting (a) a polycarbonate polyol having an alicyclic structure in the main chain, (b) an acidic group-containing polyol compound and (d) a polyisocyanate, and (B) a chain-elongating agent, being dispersed in an aqueous medium, a carboxylic acid group content of the above-mentioned (A) polyurethane prepolymer based on a solid component of (A) the polyurethane prepolymer is 2.0 to 13.0% by weight, and a number of a hydroxyl equivalent of a mixture of the above-mentioned (a) polycarbonate polyol having an alicyclic structure in the main chain, the above-mentioned (b) acidic group-containing polyol compound, and, if necessary, (c) a polyol other than (a) and (b) is 70 to 270.