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:
Nov. 23, 2010
Filed:
Jul. 14, 2004
Michel Marc, Lenexa, KS (US);
Michel Marc, Lenexa, KS (US);
Vertex L.L.C., Lenexa, KS (US);
Abstract
A method of forming a hardened skin on a surface of a molded article. In an exemplary method, a formable material is mixed with a blowing agent to form a foam material. The foam material is placed in a flow molding apparatus such that the top surface of the foam material is in contact with the top mold of the apparatus and the bottom surface of the foam material is in contact with the bottom mold of the apparatus. In operation, an alternating dielectric field is applied across the foam material to form the molded article. At the end of the molding cycle, the bottom surface of the foam material remains under the decomposition temperature of the blowing agent so as to form a hardened skin on the molded article.