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. 08, 2023
Filed:
Jan. 22, 2019
Tereos Starch & Sweeteners Belgium, Aalst, BE;
Centre National DE LA Recherche Scientifique, Paris, FR;
Soprema, Strasbourg, FR;
Université DE Strasbourg, Strasbourg, FR;
Pierre Etienne Bindschendler, Strasbourg, FR;
Alexandru Sarbu, Strasbourg, FR;
Rémi Perrin, Strasbourg, FR;
Pierre Furtwengler, Paris, FR;
Luc Avérous, Paris, FR;
Andréas Redl, Moussy-le-Vieux, FR;
TEREOS STARCH & SWEETENERS BELGIUM, Aalst, BE;
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Paris, FR;
SOPREMA, Strasbourg, FR;
UNIVERSITE DE STRASBOURG, Strasbourg, FR;
Abstract
A rigid foam or composition allowing a rigid foam to be obtained made from polyurethane and/or polyisocyanurate. The rigid foam or composition includes polyols selected from polyester polyols and polyether polyols; the polyols include: 5 to 50% of a polyester polyol A by weight relative to the total weight of the polyols; and a polyol B selected from polyester polyols B and polyether polyols B. The polyester polyol A is of general formula Rx-Ry-Z-Ry'-Rx′ in which Z is a C3 to C8 alcohol sugar chosen from glycerol, sorbitol, erythritol, xylitol, araditol, ribitol, dulcitol, mannitol and volemitol. Ry and Ry′ are diesters of formula —OOC—Cn-COO— in which n is between 2 and 34, and Rx and Rx′ are identical or different C2 to C12 monoalcohols.