Sherman & Shalloway
Process for manufacturing high-resilient flexible urethan foams
 A process for manufacturing high-resilient flexible urethan foams characterized by, reacting and foaming polyalkylene ether polyol and an organic polyisocyanate in the presence of a blowing agent, a surfactant and catalyst, (1) using as said polyalkylene ether polyol one which contains 2 to 10% by weight of a vinyl type polymer and in which its hydroxyl number ranges from 25 to 60 mg KOH/g, of its hydroxyl groups 20 to 70 mol% are primary hydroxyl groups and the remaining hydroxyl groups are secondary hydroxyl groups; (2) using as said organic polyisocyanate a mixture of tolylene diisocyanate with diphenylmethane diisocyanate or a crude diphenylmethane diisocyanate; and (3) using as said surfactant a mixture of a high-molecular-weight siloxane-oxyalkylene copolymer with a low-molecular-weight siloxane-oxyalkylene copolymer. 
Nippon Unicar Company, Limited Mitsui-Nisso Corporation Toyota Jidosha Kogyo Kabushiki Kaisha
Y C C
Y10S C08G C08G
additional inventional inventional
Kiyoshi Terumi Yuichi Takao Isao Tadashi Tadashi Isao
Matsubara Watanabe Nomura Nomura Noda Yatomi Hamamura Sakata