发明授权
US09062148B2 Method for producing fine-particle-dispersed polyol, and method for producing polyurethane resin
有权
微粒分散多元醇的制造方法以及聚氨酯树脂的制造方法
- 专利标题: Method for producing fine-particle-dispersed polyol, and method for producing polyurethane resin
- 专利标题(中): 微粒分散多元醇的制造方法以及聚氨酯树脂的制造方法
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申请号: US12670585申请日: 2008-10-01
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公开(公告)号: US09062148B2公开(公告)日: 2015-06-23
- 发明人: Shigekuni Nakada , Takayuki Tsuji , Yukiya Kobayashi
- 申请人: Shigekuni Nakada , Takayuki Tsuji , Yukiya Kobayashi
- 申请人地址: JP Kyoto
- 专利权人: Sanyo Chemical Industries, Ltd.
- 当前专利权人: Sanyo Chemical Industries, Ltd.
- 当前专利权人地址: JP Kyoto
- 代理机构: Hamre, Schumann, Mueller & Larson, P.C.
- 优先权: JP2007-264991 20071010
- 国际申请: PCT/JP2008/067807 WO 20081001
- 国际公布: WO2009/048007 WO 20090416
- 主分类号: C08K5/06
- IPC分类号: C08K5/06 ; C08G18/63 ; C08F2/10 ; C08F2/22 ; C08F2/44 ; C08F283/06 ; C08G18/40 ; C08G101/00
摘要:
A method for producing a fine-particle-dispersed polyol (I) is provided, the method including the steps (1) and (n−1): the step (1) of polymerizing an ethylenically unsaturated monomer (b) in a polyol (a), in the presence of fine particles (P1) and a radical polymerization initiator (c), so as to obtain a fine-particle-dispersed polyol intermediate (B2); and the step (n−1) of polymerizing (b) in a fine-particle-dispersed polyol intermediate (B(n−1)), in the presence of (c), so as to obtain a fine-particle-dispersed polyol intermediate (Bn) or the fine-particle-dispersed polyol (I), where n represents an integer of 3 to 7, wherein (P1) have a volume-average particle diameter (R1) of 0.01 μm to 1.0 μm, and a concentration of (b) in the step (1) is 7 wt % to 40 wt %. Thus, a method for producing a fine-particle-dispersed polyol can be provided that contains polymer fine particles dispersed in a polyol having a small particle diameter, and that, when it is used for forming a polyurethane resin, allows the polyurethane resin to exhibit excellent resin properties.