Modified ionic elastomer and blend with nylon

A method of preparing a polymeric blend composition which comprises mixing (a) from 60 to 97 parts by weight of nylon and (b) correspondingly from 40 to 3 parts by weight of an ionic elastomeric adduct containing carboxylic groups, which is a neutralized sulfonated copolymer of ethylene, an alpha-olefin having from 3 to 10 carbon atoms, and a copolymerizable non-conjugated diene, said adduct having succinic acid groups attached thereto, the sulfonic acid content being from 1 to 30 milliequivalents per 100 grams, and the carboxylic content calculated as maleic anhydride being from 0.1 to 10% based on the total weight of the elastomer.

A method of preparing a polymeric blend composition which comprises mixing (a) from 75 to 82 parts by weight of nylon and (b) correspondingly from 25 to 18 parts by weight of an ionic elastomeric adduct of maleic anhydride and neutralized sulfonated EPDM, the sulfonic acid content of the neutralized sulfonated EPDM being from 2 to 20 milliequivalents per 100 grams and the maleic anhydride content of the adduct being from 0.3 to 5% based on the weight of the adduct, the EPDM being an ethylene-propylene-ethylidene norbornene terpolymer and the nylon being selected from nylon 6, nylon 6/6 and nylon 11.