Method for modifying rubbers
AssigneeNippon Zeon Co., Ltd.
InventorsShizuo Kitahara, Yoshitsugu Hirokawa, Toshihiro Fujii
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Abstract
A method for modifying a rubber having unsaturated bonds, characterized by reacting said rubber with (a) an organic compound (I) having a group represented by the formula --CH.dbd.N-- and (b) an organic acid halide (II) having a group represented by the formula --COX (X is a halogen atom), in the place of a Lewis acid.
Claims12
A method for modifying a rubber having unsaturated bonds, characterized by reacting said rubber at -20.degree. C. to 100.degree. C. with (a) 0.001 to 30 parts by weight, per 100 parts by weight of the rubber, of an organic compound (I) represented by the formula R--CH.dbd.N--R' and (b) 0.01 to 30 parts by weight, per 100 parts by weight of the rubber, of an organic acid halide (II) represented by the formula R"--COX (wherein R, R' and R" are each, independently, aliphatic, alicyclic or aromatic residues and X is a halogen atom), in the presence of 0.01 to 5 moles, per mole of organic acid halide (II), of a Lewis acid.
Dependencies are inferred from the claim text.