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. 01, 2008
Filed:
Oct. 13, 2006
Michael Joseph Rachita, North Canton, OH (US);
Vanessa Marika Guscoff, Wadsworth, OH (US);
Lawson Gibson Wideman, Hudson, OH (US);
Michael Joseph Rachita, North Canton, OH (US);
Vanessa Marika Guscoff, Wadsworth, OH (US);
Lawson Gibson Wideman, Hudson, OH (US);
The Goodyear Tire & Rubber Company, Akron, OH (US);
Abstract
This invention discloses a process for manufacturing an elastomeric article by liquid injection molding, wherein the article has improved tensile strength and improved tear strength, said process comprising the steps of: (I) heating a curable composition comprised of (1) a liquid polymer comprised of repeat units that are derived from a conjugated diolefin monomer, wherein said liquid polymer has a weight average molecular weight which is within the range of 5,000 to 100,000, and wherein the liquid polymer is functionalized with an ether moiety, (2) a carbonyl inhibited platinum catalyst, and (3) a tetrakis(dialkyl siloxy) silane crosslinking agent, to a temperature which is within the range of 30° C. to 100° C.; (II) injecting the heated curable composition into a mold at a temperature which is within the range of 100° C. to 210° C. to produce the elastomeric article; and (III) removing the elastomeric article from the mold. This invention also discloses that the elasticity of such cured elastomeric articles can be increased without reducing cure levels by incorporating a liquid Ctackifier resin into the liquid polymer.