Substituted pyrimidines and substituted triazines as...

C - Chemistry – Metallurgy – 08 – K

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C08K 5/3492 (2006.01) C08J 5/10 (2006.01) C08K 3/06 (2006.01) C08K 5/3462 (2006.01) C08K 9/02 (2006.01) C08L 21/00 (2006.01)

Patent

CA 2137821

This invention relates to the improvement of rubber-to-metal adhesion and adhesion retention in sulfur vulcanizable, metal reinforced rubber compositions via the use of substituted pyrimidine and triazine adhesion promoters of structure (I), wherein A is N or C-H, X, Y and Z are independently selected from the group consisting of chloro, (II) wherein R1 may be hydrogen, chlo- ro,acyl,or C1-C12 alkyl; R2 may be hydrogen,C1-C12 alkyl,chloro,hydroxy,alkoxy,or anilino; R3 may be hydrogen,C1-C4 alkyl or phenyl; R4 may be hydrogen, C1-C8 alkyl, cyclohexyl, C1-C12 hydroxyalkyl, or C1-C12 alkoxyalkyl; R5 may be hy- drogen, C1-C4 alkyl, cyclohexyl, or C1-C12 hydroxyalkyl; with the proviso that Z may not be chloro when both X and Y are chloro.

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