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:
May. 31, 2011
Filed:
Apr. 05, 2005
Jeffrey M. Smith, Hinckley, OH (US);
Duane E. Peterson, Copley, OH (US);
Harold H. Seymour, Stow, OH (US);
Jeffrey M. Smith, Hinckley, OH (US);
Duane E. Peterson, Copley, OH (US);
Harold H. Seymour, Stow, OH (US);
ExxonMobil Chemical Patents Inc., Houston, TX (US);
Abstract
Process for forming an annular member by extruding a thermoplastic profiled strip at an elevated temperature. Prior to cooling the strip, the still-molten ends undergo in-line compression molding to form an annular member having a joint section. The cross-section of the annular member is continuous in the joint section and the remainder of the body. Preferably, the extrudate may contain a thermoplastic elastomer, more preferably a thermoplastic vulcanizate formed by a dynamic vulcanization process. During the extrusion and compression molding processes, the extrudate may be supported on a rotatable turntable, or alternately on a rotatable molding cylinder.