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.

Date of Patent:
Nov. 15, 2016

Filed:

Mar. 31, 2011
Applicants:

Shichen Dou, Warwick, RI (US);

Mark S. Lee, North Kingstown, RI (US);

Claudio M. Paulino, South Kingstown, RI (US);

Nao Yokota, Saunderstown, RI (US);

Keunsuk P. Chang, North Kingstown, RI (US);

Inventors:

Shichen Dou, Warwick, RI (US);

Mark S. Lee, North Kingstown, RI (US);

Claudio M. Paulino, South Kingstown, RI (US);

Nao Yokota, Saunderstown, RI (US);

Keunsuk P. Chang, North Kingstown, RI (US);

Assignee:

TORAY PLASTICS (AMERICA), INC., N. Kingstown, RI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 1/02 (2006.01); B32B 15/08 (2006.01); B29C 47/00 (2006.01); B29C 47/06 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 27/36 (2006.01); B29C 47/04 (2006.01); B29K 21/00 (2006.01); B29K 105/00 (2006.01); B29L 9/00 (2006.01);
U.S. Cl.
CPC ...
B29C 47/0021 (2013.01); B29C 47/065 (2013.01); B32B 27/08 (2013.01); B32B 27/302 (2013.01); B32B 27/36 (2013.01); B29C 47/043 (2013.01); B29C 47/067 (2013.01); B29K 2021/00 (2013.01); B29K 2105/256 (2013.01); B29K 2995/006 (2013.01); B29K 2995/0067 (2013.01); B29L 2009/00 (2013.01); B32B 2255/205 (2013.01); B32B 2274/00 (2013.01); B32B 2307/31 (2013.01); B32B 2307/518 (2013.01); B32B 2307/54 (2013.01); B32B 2307/7163 (2013.01); B32B 2439/70 (2013.01); Y10T 428/24479 (2015.01); Y10T 428/265 (2015.01); Y10T 428/2826 (2015.01); Y10T 428/31681 (2015.04);
Abstract

Described are metallized biaxially oriented polylactic acid (BOPLA) films with a novel formulation that exhibits a softer feel and quieter sound, without jeopardizing film making stability. It has been found that when these films are metallized, moisture barrier properties are surprisingly improved compared to conventional metallized BOPLA films. Specifically, the moisture barrier of the films may be 2.0 g/m/day or less at 38° C. and 90% relative humidity. The films can be used, for example, in packaging applications. The films have characteristics that are beneficial to converting processes, are economical, and maintain bio-compostability similar to typical BOPLA films.


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