TWO-COMPONENT URETHANE RESIN COMPOSITION FOR POLISHING PAD, POLYURETHANE POLISHING PAD, AND METHOD FOR PRODUCING POLYURETHANE POLISHING PAD
    8.
    发明申请
    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

    公开(公告)号:US20120202409A1

    公开(公告)日:2012-08-09

    申请号:US13379799

    申请日:2010-05-19

    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.

    摘要翻译: 本发明涉及一种用于抛光垫的双组分聚氨酯树脂组合物,其包括含有异氰酸酯基封端的氨基甲酸酯预聚物(A)和含有异氰酸酯基反应性化合物(B)的固化剂的基础树脂,其特征在于, 预聚物(A)是异氰酸酯基当量为250〜700的预聚物,其通过使多异氰酸酯(a1)与芳族聚酯多元醇(a2)和聚醚多元醇(a3)反应来制造,所述聚醚多元醇 (a2)/(a3)= 5/95〜70/30的质量比,芳香族聚酯多元醇(a2)在其分子链中具有2〜11个芳香环,并且还涉及使用该树脂的聚氨酯抛光垫 组合物和聚氨酯抛光垫的制造方法。