Urethane catalysts

Details Urethane catalysts Urethane catalysts

C - Chemistry, Metallurgy

08

K

400/101

C08K 5/57 (2006.01) C08G 18/24 (2006.01) C08G 18/28 (2006.01)

Patent

CA 1171192

ABSTRACT OF THE DISCLOSURE Hydrolytically stable premix compositions for preparation of urethane foams are prepared by employing as the organotin catalyst in such premix composition a di- or tri-alkyltin sulfonate corresponding to the formula R4-n - Sn (O3SR')n wherein R is an alkyl radical of 1 to 8 carbon atoms; R' is an alkyl, phenyl, or alkyl phenyl radical of 1 to 8 carbon atoms and n is 1 or 2. Examples include: dibutyltin bis-methanesulfonate, dibutyltin bis-benzene- sulfonate, dimethyltin bis-benzenesulfonate, dimethyltin bis-benzenesulfonate, dioctylin bis-methanesulfonate and dibutyl bis-toluenesulfonate.

380422

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