Scorch-safe acceleration of urethane vulcanization of...

Details Scorch-safe acceleration of urethane vulcanization of... Scorch-safe acceleration of urethane vulcanization of...

C - Chemistry, Metallurgy

08

L

402/125, 6/128,

C08L 21/00 (2006.01) C08J 3/24 (2006.01) C08K 5/32 (2006.01) C08K 5/49 (2006.01) C08K 5/5398 (2006.01)

Patent

CA 1145890

Abstract Improvements in scorch time of natural and synthetic rubber compositions in urethane crosslinking systems employing alkyl deri- vatives of dithiophosphoric acid as the scorch delay cure catalyst having the formula: Image wherein R1 and R2 are alkyl having at least 12 carbon atoms, or connected together and form an alkylene group having at least 2 carbon atoms, and R3 is hydrogen or phenethyl.

360210

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