The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 12, 1992
Filed:
Apr. 16, 1991
Daniel D Zimmerman, Stratford, CT (US);
Gary Vieiro, West Haven, CT (US);
Cyro Industries, Mt. Arlington, NJ (US);
Abstract
Modified rubber compositions comprise, by weight, about 15-60% of a highly saturated aliphatic rubber, such as ethylene-propylene-diene rubber, about 25-80% of preferably non-nitrogenous acrylate monomer units; and less than about 5% multi-functional monomer units. The compositions exist as amorphous heterogeneously dispersed phases. The first phase comprises the copolymer rubber, to which polymers of at least 10%, preferably 20%, and more preferably 30% of the other monomer units are grafted. The second phase comprises the other monomers polymerized as homo and copolymers, not grafted to the rubber. The modified rubber composition, preferably non-nitrogenous polyacrylate polymer, and another polymer are mixed together to form a polymer blend having higher impact strength and other important properties.