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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.:

US 9512311 B1

PDFFull Text
Date of Patent:
Dec. 06, 2016

Filed:

Jun. 11, 2007

Poly(lactic acid) composition with improved impact resistance

Applicants:

Thomas Fine, Fontainebleau, FR;

Maliha Khusrawy, Bernay, FR;

Inventors:

Thomas Fine, Fontainebleau, FR;

Maliha Khusrawy, Bernay, FR;

Assignee:

Arkema France, Colombes, FR;

Attorney:

Millen, White, Zelano and Branigan, P.C.

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
C08L 23/08 (2006.01); B29C 47/00 (2006.01); B29C 47/78 (2006.01); B29C 47/36 (2006.01); B29C 51/00 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 27/30 (2006.01); B32B 27/34 (2006.01); B32B 27/36 (2006.01); C08L 67/02 (2006.01); C08L 67/04 (2006.01); B29K 67/00 (2006.01); B29K 23/00 (2006.01);
U.S. Cl.
CPC ...
C08L 67/02 (2013.01); B32B 27/08 (2013.01); C08L 67/04 (2013.01); B29C 47/00 (2013.01); B29C 47/36 (2013.01); B29C 47/361 (2013.01); B29C 47/78 (2013.01); B29C 51/00 (2013.01); B29K 2023/08 (2013.01); B29K 2067/046 (2013.01); B32B 27/302 (2013.01); B32B 27/306 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 2250/02 (2013.01); B32B 2307/7163 (2013.01); C08L 23/0846 (2013.01); C08L 23/0869 (2013.01); C08L 23/0884 (2013.01); Y10T 428/31511 (2015.04); Y10T 428/31736 (2015.04); Y10T 428/31786 (2015.04); Y10T 428/31797 (2015.04);
Abstract

The present invention relates to a poly(lactic acid) composition with improved impact resistance, comprising, by weight: 60% to 97% of poly(lactic acid) (PLA), and 3% to 40% of a mixture of compounds A and B in which A is a copolymer of ethylene and of an unsaturated monomer bearing at least one epoxide or carboxylic acid or carboxylic acid anhydride function, and optionally of alkyl (meth)acrylate, and B is a copolymer of ethylene and of alkyl (meth)acrylate, wherein said mixture having a wt % (A)/wt % (A+B) ratio of between 0.10 and 0.49. The present invention also relates to the manufacture of parts or objects using these compositions.

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