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:
Jan. 22, 2008
Filed:
Feb. 04, 2002
Angèle Chomard, Paris, FR;
Jean-françois Argillier, Saint Cloud, FR;
Jean-claude Hipeaux, Colombes, FR;
Angèle Chomard, Paris, FR;
Jean-François Argillier, Saint Cloud, FR;
Jean-Claude Hipeaux, Colombes, FR;
Saipem S.A., Montigny-le-Bretonneux, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
The process according to the invention includes the combination, with a liquid phase change material (PCM), of a texturing agent chosen so as to greatly reduce the thermal convection and whose viscosity is decreased reversibly under shearing. The material formed has a gelled consistency when at rest, and fluidized under shearing. The PCM comprises a mixture of chemical compounds from the alkane family: paraffins, waxes, fatty alcohols, fatty acids etc., and the texturing agent is a high mass polymer (hydrocarbonate polymers, ester or ether polymers, mixed ester-hydrocarbon polymers), an ionomer polymer or a di, tri or multi-block styrene copolymer (SBS: styrene-butadiene-styrene, SEBS: styrene-ethylene-butadiene-styrene). Applications: thermal insulation of vessels or lines, and more especially, for hydrocarbon transport lines.