C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/6569
C08L 23/04 (2006.01) C08J 3/24 (2006.01) C08L 23/02 (2006.01) C08L 23/08 (2006.01) C08L 31/04 (2006.01)
Patent
CA 1099839
ABSTRACT OF THE DISCLOSURE The invention provides an elastoplastic composition useful for making a variety of shaped articles such as tires, hoses, belts, gaskets, moldings and molded parts. The elasto- plastic composition comprises a blend of about 65 to about 15 parts by weight thermoplastic crystalline polyolefin resin and about 35 to about 85 parts by weight cross linked EVA rubber, and rubber plasticizer in an amount of 0 - 50 weight percent of the EVA rubber. The EVA rubber is an amorphous copolymer of ethylene and 40 to 70 percent by weight vinyl acetate. The rubber is further characterized in that it is cross-linked to the extent that the toluene extractables as percent of rubber is 15 or less with the proviso that the combined weight of the resin, EVA rubber and optional rubber plasticizer is such that the amount of EVA rubber does not exceed 80 weight percent and the amount of polyolefin resin does not exceed 45 weight percent of the composition. The composition of this invention is elastomeric and proces- sable as a thermoplastic.
297072
Coran Aubert Y.
Patel Raman P.
Mcfadden Fincham
Monsanto Company
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