Hydroxyphenylurethanes for stabilising elastomers

Details Hydroxyphenylurethanes for stabilising elastomers Hydroxyphenylurethanes for stabilising elastomers

C - Chemistry, Metallurgy

08

K

6/115, 400/6404,

C08K 5/16 (2006.01) C08K 5/205 (2006.01) C08K 5/36 (2006.01) C08K 5/372 (2006.01) C08L 57/00 (2006.01)

Patent

CA 1051584

THE USE OF HYDROXYPHENYLURETHUANES FOR STABILISING ELASTOMERS Abstract of the Disclosure The use of compounds of the formula I Image wherein Rl denotes alkyl with 3 or 4 carbon atoms, R2 denotes alkyl with 1 - 4 carbon atoms, R3 denotes hydrogen or methyl, n denotes 1 or 2 and R4, if n is 1, denotes alkyl with 8 - 14 carbon atoms, cycloalkyl with 5 or 6 carbon atoms, benzyl., phenyl, phenyl substituted by 1 to 2 alkyl groups and/or alkoxy groups each with 1-8 carbon atoms, phenylthioalkyl with 8 - 9 carbon atoms oraradical of the formula -(CH2)m-X-R (Ia) wherein X is oxygen or sulphur, R is alkyl with 1 - 4 carbon atoms and m is 2 or 3, or, if n is 2, denotes alkylene with 2 - 8 carbon atoms, phenylene or a radical of the formula -(CH2)m-X-(CH2)q- (Ib) wherein X is oxygen or sulphur and m and q independently of one another are 2 or 3, for stabilising elastomers, made from etllylenically unsaturated monomers.

223918

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