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:
Mar. 20, 1984
Filed:
Sep. 17, 1982
Wayne F Nelson, Akron, OH (US);
A. Schulman, Inc., Akron, OH (US);
Abstract
The disclosure relates to a modified ionomer blend which is characterized by excellent metal adhesion, good weatherability, and low gloss, consisting essentially of an intimate mixture of (1) about 20 to 60 percent of an ethylene-propylene rubber, in which ethylene is the predominant component, (2) about 40 to 80 percent of a copolymer containing ethylene units and carboxylic acid containing units, said copolymer containing between about 25 and 98.5 percent ethylene units and between about 1.5 and 30 percent carboxylic acid containing units, and said carboxylic acid units being from 10 to 100 percent neutralized with metallic ions, and (3) an effective amount up to about 10 percent of a coloring material selected from the group consisting of (1) carbon black, and (2) a pigment plus an ultraviolet stabilizer, with or without an antioxidant, and to a process in which the ionomer blend is extruded onto a metal strip which has first been cleaned with a detergent wash, rinsed with pure or deionized water, dried, heated, and passed through a crosshead die of an extruder concomitantly with the extrusion of the ionomer blend.