Rigid foams using blends of chlorofluorocarbons and...

Details Rigid foams using blends of chlorofluorocarbons and... Rigid foams using blends of chlorofluorocarbons and...

C - Chemistry, Metallurgy

08

J

403/37

C08J 9/06 (2006.01) C08J 9/14 (2006.01)

Patent

CA 2037715

The present invention is directed to the use of a mixture of (i) from 30 to 95 % by wt. of 2,2-dichloro-1,1,1-trifluoroethane and/or 1,1-dichloro- 1-fluoroethane and (ii) from 5 to 70 % by wt. of n-pentane, 2-methylbutane, hexane, position isomers of hexane and mixtures thereof in the production of rigid, closed cell foams.

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