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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 9333692 B1

PDFFull Text
Date of Patent:
May. 10, 2016

Filed:

Mar. 07, 2012

Hydrolysis resistant polyester films

Applicants:

William J. Brennan, Great Ayton, GB;

Simon Vernon Mortlock, Dumfries, GB;

William Bryden Goldie, Dumfries, GB;

Emma Ashford, Dumfries, GB;

Kirstin Jayne Forsyth, Glasgow, GB;

David R. Turner, New-castle-upon-Tyne, GB;

Allan Lovatt, Middlesbrough, GB;

Inventors:

William J. Brennan, Great Ayton, GB;

Simon Vernon Mortlock, Dumfries, GB;

William Bryden Goldie, Dumfries, GB;

Emma Ashford, Dumfries, GB;

Kirstin Jayne Forsyth, Glasgow, GB;

David R. Turner, New-castle-upon-Tyne, GB;

Allan Lovatt, Middlesbrough, GB;

Assignee:

DUPONT TEIJIN FILMS U.S. LIMITED PARTNERSHIP, Chester, VA (US);

Attorney:

Ratnerprestia

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
B32B 27/08 (2006.01); B32B 27/18 (2006.01); B32B 27/36 (2006.01); B32B 37/15 (2006.01); B29D 7/01 (2006.01); B29C 47/00 (2006.01); B29C 47/06 (2006.01); C08K 5/1515 (2006.01); C08J 3/20 (2006.01); C08L 67/02 (2006.01); C08L 67/03 (2006.01); C08G 63/91 (2006.01); H01L 31/048 (2014.01); H01L 31/049 (2014.01); C08J 5/18 (2006.01); H01L 21/64 (2006.01); H01L 31/056 (2014.01); B29K 67/00 (2006.01); C08K 5/10 (2006.01); C08K 5/00 (2006.01); C08K 3/00 (2006.01); C08K 5/101 (2006.01);
U.S. Cl.
CPC ...
B29C 47/0021 (2013.01); B29D 7/01 (2013.01); C08G 63/916 (2013.01); C08J 5/18 (2013.01); H01L 21/64 (2013.01); H01L 31/048 (2013.01); H01L 31/049 (2014.12); H01L 31/056 (2014.12); B29C 47/0057 (2013.01); B29C 47/06 (2013.01); B29K 2067/00 (2013.01); B29K 2067/003 (2013.01); B32B 27/08 (2013.01); B32B 27/18 (2013.01); B32B 27/36 (2013.01); B32B 37/15 (2013.01); B32B 37/153 (2013.01); B32B 2250/02 (2013.01); B32B 2250/03 (2013.01); B32B 2250/244 (2013.01); B32B 2307/402 (2013.01); B32B 2307/41 (2013.01); B32B 2307/412 (2013.01); B32B 2307/50 (2013.01); B32B 2307/712 (2013.01); B32B 2367/00 (2013.01); B32B 2457/12 (2013.01); C08G 63/91 (2013.01); C08G 63/914 (2013.01); C08J 3/201 (2013.01); C08J 2367/02 (2013.01); C08J 2367/03 (2013.01); C08K 3/0033 (2013.01); C08K 3/0041 (2013.01); C08K 5/005 (2013.01); C08K 5/10 (2013.01); C08K 5/101 (2013.01); C08K 5/1515 (2013.01); C08L 67/02 (2013.01); C08L 67/03 (2013.01); C08L 2201/08 (2013.01); C08L 2201/10 (2013.01); C08L 2203/204 (2013.01); Y02E 10/52 (2013.01); Y10T 428/31786 (2015.04);
Abstract

A biaxially oriented polyester film comprising polyester and at least one hydrolysis stabilizer selected from a glycidyl ester of a branched monocarboxylic acid, wherein the monocarboxylic acid has from 5 to 50 carbon atoms, wherein said hydrolysis stabilizer is present in the film in the form of its reaction product with at least some of the end-groups of said polyester, and wherein said reaction product is obtained by the reaction of the hydrolysis stabilizer with the end-groups of the polyester in the presence of a metal cation selected from the group consisting of Group I and Group II metal cations.

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