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:
Oct. 27, 2015
Filed:
Jan. 07, 2011
Mike DE Leeuw, Maastricht, NL;
Sebastien Jerome Pierre, Maastricht, NL;
Mike de Leeuw, Maastricht, NL;
Sebastien Jerome Pierre, Maastricht, NL;
INGELL TECHNOLOGIES HOLDING B.V., Groningen, NL;
Abstract
Amphiphilic triblock copolymers B-A-B, wherein A is a linear poly(ethylene glycol) block, having a number average molecular weight (M) of between 900 and 3000 Daltons, determined with size exclusion chromatography; wherein B are hydrophobic blocks with at least two cyclic monomers selected from the group consisting of glycolide, lactide, 1,3-dioxan-2-one, 5,5-dimethyl-1,3-dioxan-2-one, 1,4-dioxan-2-one, 1,4-dioxepan-2-one, 1,5-dioxepan-2-one, each B-block having a number average molecular weight (M) of between 400 and 2000 Daltons, determined with size exclusion chromatography; and wherein 25% to 100% of the polymer hydroxyl end-groups are covalently modified with at least one derivative of a C-Cfatty acid. The invention also relates to compositions with such polymers and the use thereof.