Invention Grant
US09273188B2 Process for producing urethane resin particles for slush molding
有权
用于制造用于搪塑的聚氨酯树脂颗粒的方法
- Patent Title: Process for producing urethane resin particles for slush molding
- Patent Title (中): 用于制造用于搪塑的聚氨酯树脂颗粒的方法
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Application No.: US14558338Application Date: 2014-12-02
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Publication No.: US09273188B2Publication Date: 2016-03-01
- Inventor: Yasuhiro Tsudo , Masaki Inaba , Koichi Saito , Hideaki Saito , Takanori Yamamoto
- Applicant: SANYO CHEMICAL INDUSTRIES, LTD.
- Applicant Address: JP Kyoto-shi
- Assignee: SANYO CHEMICAL INDUSTRIES, LTD.
- Current Assignee: SANYO CHEMICAL INDUSTRIES, LTD.
- Current Assignee Address: JP Kyoto-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2009-280295 20091210; JP2010-054045 20100311; JP2010-062290 20100318; JP2010-071196 20100326; JP2010-153980 20100706; JP2010-229743 20101012
- Main IPC: C08J3/20
- IPC: C08J3/20 ; B29C41/18 ; C08G18/73 ; C08G18/10 ; C08G18/12 ; C08G18/42 ; C08J3/12 ; B29K75/00
Abstract:
The present invention is urethane resin particles (C) for slush mold which contain a urethane resin (D) and an additive (N), wherein the particles have a shape factor SF1 of 101 to 200, a shape factor SF2 of 120 to 240, and a central particle diameter of 20 to 500 μm. It is preferred that the urethane resin (D) has a concentration of urea groups of 0.5 to 10% by weight, a total of the concentration of urethane groups and that of the urea groups of 4 to 20% by weight, a melting point of 160 to 260° C. and a glass transition temperature of −65 to 0° C.
Public/Granted literature
- US20150086770A1 PROCESS FOR PRODUCING URETHANE RESIN PARTICLES FOR SLUSH MOLDING Public/Granted day:2015-03-26
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