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. 23, 2005
Filed:
Feb. 04, 2002
Nguyen Truong Dinh, Chasse sur Rhone, FR;
Jean-marc Basset, Chasse sur Rhone, FR;
Stéphane Ruelle, Chasse sur Rhone, FR;
Angèle Chomard, Paris, FR;
Nguyen Truong Dinh, Chasse sur Rhone, FR;
Jean-Marc Basset, Chasse sur Rhone, FR;
Stéphane Ruelle, Chasse sur Rhone, FR;
Angèle Chomard, Paris, FR;
Saipem S.A., Montigny-le-Bretonneux, FR;
Institut Francais du Petrole, Rueil-Malmaison, FR;
Condat SA, Chasse sur Rhone, FR;
Abstract
The present invention relates to and uses, in order to prevent crude oil from 'congealing' in a transportation line, a controlled-crosslinking thermal insulation gel, i.e. relatively fluid at the start and developing in-situ gelation in lines only under certain conditions, temperature conditions among other things. In order to obtain controlled crosslinking, it is possible to carry out 1) Physical crosslinkings, i.e. physical bonds between polymers—completely reversible bonds by thermal effect and/or mechanical shear—and 2) Chemical crosslinkings: monomers or polymers having functions allowing chemical bonds to be established between polymers.