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:
Sep. 18, 1990
Filed:
Dec. 01, 1986
Denki Kagaku Kogyo KK, Tokyo, JP;
Abstract
A chloroprene copolymer produced by radical copolymerization of 50 to 95% of chloroprene, 5 to 50% of at least one polyether (meth)acrylate of a specific formula, and 0 to 10% of any monomer copolymerizable with chloroprene, these percentages being by weight and based on the total quantity of monomers copolymerized, exhibits a remarkable combination of excellent oil resistance, weathering resistance, heat resistance, and coldness resistance. It was found that even when a polyether molecular chain has poor compatibility with chloroprene rubber, if this chain has an acryloyl or a methacryloyl group at one or both ends thereof, it can be copolymerized with chloroprene, and the resulting chloroprene copolymer processes and above mentioned combination of excellent properties.