发明申请
US20120202409A1 TWO-COMPONENT URETHANE RESIN COMPOSITION FOR POLISHING PAD, POLYURETHANE POLISHING PAD, AND METHOD FOR PRODUCING POLYURETHANE POLISHING PAD
失效
用于抛光垫的两组分脲醛树脂组合物,聚氨酯抛光垫和用于生产聚氨酯抛光垫的方法
- 专利标题: TWO-COMPONENT URETHANE RESIN COMPOSITION FOR POLISHING PAD, POLYURETHANE POLISHING PAD, AND METHOD FOR PRODUCING POLYURETHANE POLISHING PAD
- 专利标题(中): 用于抛光垫的两组分脲醛树脂组合物,聚氨酯抛光垫和用于生产聚氨酯抛光垫的方法
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申请号: US13379799申请日: 2010-05-19
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公开(公告)号: US20120202409A1公开(公告)日: 2012-08-09
- 发明人: Tomoaki Shinchi , Hiroshi Suzaki
- 申请人: Tomoaki Shinchi , Hiroshi Suzaki
- 申请人地址: JP Tokyo
- 专利权人: DIC Corporation
- 当前专利权人: DIC Corporation
- 当前专利权人地址: JP Tokyo
- 优先权: JP2009-153603 20090629
- 国际申请: PCT/JP2010/058410 WO 20100519
- 主分类号: B24D11/00
- IPC分类号: B24D11/00
摘要:
The present invention relates to a two-component urethane resin composition for a polishing pad including a base resin containing an isocyanate group-terminated urethane prepolymer (A) and a curing agent containing an isocyanate group reactive compound (B), and characterized in that the prepolymer (A) is a prepolymer having an isocyanate group equivalent of 250 to 700 and being produced by reacting a polyisocyanate (a1) with an aromatic polyester polyol (a2) and a polyether polyol (a3) which are used as polyol components in combination at a mass ratio of (a2)/(a3)=5/95 to 70/30, and the aromatic polyester polyol (a2) has 2 to 11 aromatic rings in its molecular chain, and also relates to a polyurethane polishing pad using the resin composition and a method for producing a polyurethane polishing pad.
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