C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
C08J 9/12 (2006.01) C08G 18/28 (2006.01) C08J 9/14 (2006.01)
Patent
CA 2227530
The use of a water alcohol solution mixed with perchloroethylene as foaming agent for the production of foamed polyurethane is disclosed. Particularly described is the use of an alcoholic distillate mixed with perchloroethylene. The alcoholic content of the solution and the distillate is between 30 and 90 degrees. Also the amounts of such agent to be used in the mixture are indicated as parts by weight with respect to the current components.
La présente invention concerne, pour la production de mousse de polyuréthane, l'utilisation d'un agent d'expansion constitué de mélanges entre, d'une part de l'alcool dilué dans l'eau et d'autre part du perchloréthylène. L'invention concerne plus particulièrement l'utilisation d'un distillat alcoolique mélangé à du perchloréthylène. Le titrage alcoolique de la solution et du distillat se situe entre 30 et 90 degrés. En outre, les proportions de cet agent dans le mélange sont mentionnées en parties par poids en composants courants.
Bkp Gp
Gn/pi Di Luigi Granieri E. Figli S.n.c.
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