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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 11287079 B1

PDFFull Text
Date of Patent:
Mar. 29, 2022

Filed:

Jan. 17, 2020

Self-healing barrier films for vacuum insulation panels

Applicant:

Ut-battelle Llc, Oak Ridge, TN (US);

Inventors:

Kaushik Biswas, Knoxville, TN (US);

Pengfei Cao, Knoxville, TN (US);

Tomonori Saito, Knoxville, TN (US);

Assignee:

UT-BATTELLE, LLC, Oak Ridge, TN (US);

Attorney:

Warner Norcross + Judd LLP

Primary Examiner:

Alicia J Sawdon

Int. Cl.
CPC ...
B32B 3/04 (2006.01); B32B 5/18 (2006.01); B32B 5/16 (2006.01); B32B 27/36 (2006.01); F16L 59/065 (2006.01); C08G 59/66 (2006.01); C09D 167/02 (2006.01); F25D 23/06 (2006.01); B32B 27/06 (2006.01); B32B 27/12 (2006.01); B32B 38/18 (2006.01); B32B 37/18 (2006.01); C08G 59/40 (2006.01);
U.S. Cl.
CPC ...
F16L 59/065 (2013.01); B32B 3/04 (2013.01); B32B 5/16 (2013.01); B32B 5/18 (2013.01); B32B 27/065 (2013.01); B32B 27/12 (2013.01); B32B 27/36 (2013.01); B32B 37/185 (2013.01); B32B 38/1858 (2013.01); C08G 59/4042 (2013.01); C08G 59/66 (2013.01); C09D 167/02 (2013.01); F25D 23/065 (2013.01); B32B 2250/40 (2013.01); B32B 2255/10 (2013.01); B32B 2255/205 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2266/06 (2013.01); B32B 2307/304 (2013.01); B32B 2307/7246 (2013.01); B32B 2307/762 (2013.01); B32B 2367/00 (2013.01); F25D 2201/14 (2013.01);
Abstract

A self-healing vacuum insulation panel and a method of manufacture are provided. The vacuum insulation panel includes a self-healing, multi-layer barrier film including a separator between a curing agent and a curable resin. Upon damage to the separator, the curing agent penetrates the separator due to a pressure differential across the barrier film and reacts with the curable resin to seal any cuts or punctures. The curing agent and the curable resin can be selected to have long term stability and a short reaction time with no need for external stimuli. As a result, the multi-layer barrier film can retain the internal vacuum and maintain a desirably low thermal conductivity using low-cost, commercially available epoxies and curing agents.

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