Polar resins having improved characteristics by blending with EPM and EPDM polymers
AssigneeCopolymer Rubber & Chemical Corporation
InventorRalph K. Joffrion
Life of this patent
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Abstract
The improvement of physical and mechanical properties of polar resins such as nylon and dacron resins by blending with EPM and EPDM resins which have been rendered more compatible by the modification to incorporate polar groups.
Claims6
A polar resin selected from the group consisting of polyamides and polyester resins having improved physical and mechanical properties comprising a blend of the polar resin with up to 50% by weight of an EPM or EPDM polymer which has been rendered more compatible with the polar resin by having incorporated therein polar groups as a monomer bound in the polymer by copolymerization with the EPM or EPDM monomers or grafted onto the EPM or EPDM polymer after formation thereof in which the polar groups are an amine or an amide group.
The method of blending an EPM or EPDM resin with a polar resin selected from the group consisting of polyamides and polyester resins to form a composite having improved mechanical and physical properties comprising improving the compatibility of the EPM or EPDM resin with the polar resin by incorporating into the EPM or EPDM resin highly polar groups selected from the group consisting of amine and amide groups, and reducing the EPM or EPDM resin and the polar resin to a plastic stage and admixing the modifying EPM or EPDM with the polar resin while in their plastic stage to produce a blend of the polymeric resinous materials.
Dependencies are inferred from the claim text.