Invention Grant
US07964653B2 Polyol composition for two-component curable abrasive foam, composition for two-component curable abrasive foam, abrasive foam, and method for producing abrasive foam
有权
用于双组分可固化研磨泡沫的多元醇组合物,用于双组分可固化研磨泡沫的组合物,研磨泡沫和用于生产磨料泡沫的方法
- Patent Title: Polyol composition for two-component curable abrasive foam, composition for two-component curable abrasive foam, abrasive foam, and method for producing abrasive foam
- Patent Title (中): 用于双组分可固化研磨泡沫的多元醇组合物,用于双组分可固化研磨泡沫的组合物,研磨泡沫和用于生产磨料泡沫的方法
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Application No.: US10538873Application Date: 2003-12-16
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Publication No.: US07964653B2Publication Date: 2011-06-21
- Inventor: Fumio Yamamoto , Katsuhide Nishimura
- Applicant: Fumio Yamamoto , Katsuhide Nishimura
- Applicant Address: JP Tokyo
- Assignee: DIC Corporation
- Current Assignee: DIC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Edwards Angell Palmer & Dodge LLP
- Priority: JP2002-365094 20021217
- International Application: PCT/JP03/16099 WO 20031216
- International Announcement: WO2004/055089 WO 20040701
- Main IPC: C08G18/28
- IPC: C08G18/28

Abstract:
A polyol composition contains a polyaminochlorophenylmethane mixture (A) and a polyol (B), in which the component (A) is uniformly dissolved in the component (A) in a weight ratio of 30/70 to 60/40. The component (A) includes 50 to 70% by weight of a specific binuclear polyaminochlorophenylmethane compound, 20 to 40% by weight of a specific trinuclear polyaminochlorophenylmethane compound and 5 to 10% by weight of a specific tetranuclear or higher polyaminochlorophenylmethane compound. The polyol composition exhibits excellent miscibility and dissolution stability, is liquid and enables molding of a foamed article for abrasive in a simple two-component mixing casting machine. According to the present invention, water serving as a foaming agent can be added to the polyol composition containing MBOCA, and the composition for a two-component curable abrasive foam can be held to a temperature equal to or lower than the boiling point of water, thus avoiding water from evaporating upon molding. The resulting abrasive foam has a uniform density distribution and exhibits excellent mechanical properties. A method for satisfactorily producing such an abrasive foam is also provided.
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