Diamine salts of dicarboxylic acids as additives for block polymers

Claim 1

said elastomeric block is a. a homopolymer of a conjugated diene containing from about four to 12 carbon atoms per molecule, b. a copolymer of two or more conjugated dienes, or c. a copolymer of one or more conjugated dienes with one or more monovinyl-substituted aromatic hydrocarbon monomers which contain at least 50 percent by weight of said diene based on the weight of said elastomeric block; wherein said terminal non-elastomeric blocks comprise from about 20 to 80 percent by weight of the total polymer composition and said elastomeric block comprises from about 80 to 20 percent by weight of the total polymer composition, and wherein each terminal block of said linear block polymer comprises at least 10 weight percent of the total polymer composition; and wherein each of said non-elastomeric polymer block of said radial block polymer comprises at least 5 weight percent of the total polymer composition, and at least one additive in the amount to provide from about 0.5 to 3 parts by weight of said additive per 100 parts by weight of said linEar or radial block polymers, wherein said at least one additive is the salt formed by reacting a primary diamine corresponding to the general formula R(NH2)2, wherein R is an alkylene radical containing from about six to 12 carbon atoms, and a dicarboxylic acid that can be represented by the general formula R''(CO2H)2, wherein R'' is an alkylene or cycloalkylene radical containing from about six to 16 carbon atoms.