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.:

US 7678427 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 16, 2010

Filed:

Nov. 19, 2003
Applicants:

Seiji Nakagome, Tsukuba, JP;

Mitsuyasu Nakajima, Nihonmatsu, JP;

Inventors:

Seiji Nakagome, Tsukuba, JP;

Mitsuyasu Nakajima, Nihonmatsu, JP;

Assignee:

NOK Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

An aging-resistant rubber material with an improved heat resistance without deteriorating the moldability even if a rubber layer is formed from an aqueous latex of rubber and without any cost increase, even if a surface tack prevention treatment by an antitack agent is carried out, can be produced by applying a coating liquid containing an amine-based antioxidant in solution or dispersion to the surface of a cross-linked rubber material, followed by heating to a temperature of 80° C. or higher, thereby diffusing the amine-based antioxidant into the rubber material. When a coating solution containing an antitack agent together with the amine-based antioxidant in solution or dispersion is used, the surface tack prevention treatment of the cross-linked material as a product can be made at the same time.


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Nakagome, Seiji. (2010). Process for producing aging-resistant rubber material (U.S. Patent No. 7678427). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7678427

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