C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/14 (2006.01) C08G 18/28 (2006.01) C08G 18/48 (2006.01) C08G 18/76 (2006.01)
Patent
CA 2212914
Process for the production of a rigid polyurethane foam and a composition for the production of a rigid Polyurethane foam Abstract The present invention relates to a method of producing a rigid polyurethane foamin which a polyisocyanate containing a benzene ring is used as an organic isocyanate and a polyether polyol and/or polyester polyol is used as a polyol, characterized in that a hydrocarbon is used as the blowing agent and a compound having a hydrophobic group and a hydroxyl group in the molecule is used as an emulsifying agent. The blowing agent is preferably a hydrocarbon selected from the group consisting of cyclopentane, n-pentane and iso-pentane.
Méthode et composition pour la production d'une mousse de polyuréthane rigide. L'invention concerne une méthode de production de mousse de polyuréthane rigide, dans laquelle un polyisocyanate renfermant un noyau benzénique sert comme isocyanate organique; un polyéther-polyol et (ou) un polyester-polyol est utilisé comme polyol; un hydrocarbure sert comme agent d'expansion et un composé dont la molécule porte un groupe hydrophobe et un groupe hydroxyle est l'agent émulsifiant. L'agent d'expansion est de préférence un hydrocarbure choisi parmi un cyclopentane, un n-pentane et un iso-pentane.
Brock Martin
Hama Teruo
Ikebe Mitsuaki
Sumitomo Bayer Urethane Co. Ltd.
Swabey Ogilvy Renault
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