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. 12, 2014
Filed:
Jan. 20, 2012
Guillaume Le, Colombelles, FR;
Cyrille Mathieu, Rouen, FR;
Karine Loyen, Pont-Audemer, FR;
Jean Laurent Pradel, Boisney, FR;
Jean Jacques Flat, Goupilleres, FR;
Guillaume Le, Colombelles, FR;
Cyrille Mathieu, Rouen, FR;
Karine Loyen, Pont-Audemer, FR;
Jean Laurent Pradel, Boisney, FR;
Jean Jacques Flat, Goupilleres, FR;
Arkema France, Colombes, FR;
Abstract
The invention relates to a method for the production of biosourced aliphatic polyester powder having a volume median diameter of less than 30 μm, comprising: a step consisting in supplying an aliphatic polyester having an inherent viscosity of less than 0.5 dl/g; and a step consisting in grinding the polyester, so as to obtain a polyester powder having a volume median diameter of less than 30 μm. The invention also relates to a powder in which the particles have a volume median diameter of less than 30 μm and are impregnated with a compound selected from among polyols and/or carboxylic acids. The invention further relates to the use of the powder for the production of cosmetic, pharmaceutical and perfume products.