Invention Grant
US08258196B2 Method for producing rigid polyurethane foam, and rigid polyurethane foam
失效
硬质聚氨酯泡沫塑料的制造方法，硬质聚氨酯泡沫塑料
- Patent Title: Method for producing rigid polyurethane foam, and rigid polyurethane foam
- Patent Title (中): 硬质聚氨酯泡沫塑料的制造方法，硬质聚氨酯泡沫塑料
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Application No.: US12469178Application Date: 2009-05-20
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Publication No.: US08258196B2Publication Date: 2012-09-04
- Inventor: Katsuhiko Shimizu , Teruhiko Yasuda , Hiroshi Wada
- Applicant: Katsuhiko Shimizu , Teruhiko Yasuda , Hiroshi Wada
- Applicant Address: JP Tokyo
- Assignee: Asahi Glass Company, Limited
- Current Assignee: Asahi Glass Company, Limited
- Current Assignee Address: JP Tokyo
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2006-312813 20061120
- Main IPC: C08G77/46
- IPC: C08G77/46
Abstract:
To provide a method for producing a rigid polyurethane foam, whereby it is possible to reduce the density without causing deterioration in dimensional stability, and a rigid polyurethane foam.A method for producing a rigid polyurethane foam, which comprises a step of reacting a polyol having a hydroxyl value of from 200 to 800 mgKOH/g with a polyisocyanate compound in the presence of an amino-modified silicone, a catalyst, a blowing agent and a surfactant.
Public/Granted literature
- US20090234036A1 METHOD FOR PRODUCING RIGID POLYURETHANE FOAM, AND RIGID POLYURETHANE FOAM Public/Granted day:2009-09-17
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