C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
400/101, 403/37,
C08J 9/06 (2006.01) C08G 18/76 (2006.01) C08J 9/14 (2006.01) C08L 87/00 (2006.01)
Patent
CA 2017103
ABSTRACT Disclosed are mixed halocarbon blowing agents comprising (1) halocarbons boiling below 10°C, (2) halocarbons boiling between 20°C and 35°C, and (3) inert organic liquids having a boiling point of from 35°C to 125°C. Also disclosed are blends of the above mixed blowing agents with active hydrogen-containing com- pounds, particularly polyols and the rigid closed cell foams prepared from such blends. Up to 60 percent reduction in hard halocarbons is realized with the mixed blowing agents.
Lin Chung-Yuan
Smart & Biggar
The Dow Chemical Company
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