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:
Apr. 23, 2019
Filed:
Jun. 23, 2015
Zeon Corporation, Tokyo, JP;
Tomonori Nakashima, Tokyo, JP;
ZEON CORPORATION, Tokyo, JP;
Abstract
A rubber obtained by cross-linking a highly saturated nitrile rubber composition has a carboxyl group-containing highly saturated nitrile rubber (A1) containing 15 to 60 wt % of α,β-ethylenically unsaturated nitrile monomer units and 1 to 60 wt % of α,β-ethylenically unsaturated dicarboxylic acid monoester monomer units and having an iodine value ≤120, a highly saturated nitrile rubber (A2) containing α,β-ethylenically unsaturated nitrile monomer units in 15 to 60 wt %, having a content of α,β-ethylenically unsaturated dicarboxylic acid monoester monomer units of 0.9 wt % or less, and an iodine value of 120 or less, a polyamide resin having a melting point ≥150° C., and a cross-linking agent. In the composition, a weight ratio of '(A1):(A2)' is 5:95 to 95:5 in range, a weight ratio of 'total of (A1) and (A2):polyamide resin' is 95:5 to 50:50, and a storage elastic modulus of the cross-linked rubber at 150° C. is 5 MPa or more.