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:
Aug. 31, 2010
Filed:
Sep. 24, 2003
Philippe Mazabraud, Orleans, FR;
Gwenael Doulin, La Chapelle-sur-Erdre, FR;
Andre Sanchez, Bourg en Bresse, FR;
Jean-francois Cotel, Lyons, FR;
Philippe Mazabraud, Orleans, FR;
Gwenael Doulin, La Chapelle-sur-Erdre, FR;
Andre Sanchez, Bourg en Bresse, FR;
Jean-Francois Cotel, Lyons, FR;
Commissariat a l'Energie Atomique, Paris, FR;
Abstract
A foam layer is formed by rotomoulding including heating a foaming polymer, and wherein the heating is interrupted before the foaming temperature is reached. A thermal inertia of the system also composed of the mold and previously placed layers assures completion of heating, but not sufficient to cause disorderly foaming. The foam layer is uniform and bonding. Dense layers surrounding the foam layer may be different.