Use of phenol-mercaptocarboxylic acid esters as stabilisers...

Details Use of phenol-mercaptocarboxylic acid esters as stabilisers... Use of phenol-mercaptocarboxylic acid esters as stabilisers...

C - Chemistry, Metallurgy

08

K

400/2001, 400/50

C08K 5/37 (2006.01) C08K 5/375 (2006.01) C10M 135/26 (2006.01) C10M 135/30 (2006.01)

Patent

CA 1194466

ABSTRACT OF THE DISCLOSURE The phenol-mercaptocarboxylic acid esters used for stabilising elastomers are those of the formula I Image (I) wherein R1 is tert.-butyl, R2 is methyl or tert.-butyl and R3 is straight-chain or branched C1-C18-alkyl which may contain -O- or -S-bridges, C5-C6-cycloalkyl or benzyl. Related compounds in which R2 is tert.-butyl, and R3 is straight or branched chain C5-C12 alkyl which may contain -O- or -S-bridges also function as stabilizers for lubricants. Isooctyl di-tert.-butyl-4- hydroxybenzylmercaptoacetate is preferably used.

396450

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