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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 11396161 B1

PDFFull Text
Date of Patent:
Jul. 26, 2022

Filed:

Dec. 19, 2018

Method for preparing multi-layer optical laminates

Applicant:

3m Innovative Properties Company, St. Paul, MN (US);

Inventors:

Kazuta Saito, Tokyo, JP;

Katsuya Takamori, Tokyo, JP;

Assignee:

3M Innovative Properties Company, St. Paul, MN (US);

Attorney:

Robert S. Moshrefzadeh

Primary Examiner:

Philip C Tucker

Assistant Examiner:

Brian R Slawski

Int. Cl.
CPC ...
B32B 17/10 (2006.01); B32B 7/12 (2006.01); B32B 37/10 (2006.01); B29C 48/21 (2019.01); C03C 17/30 (2006.01); B32B 37/00 (2006.01); B29L 9/00 (2006.01); B32B 37/24 (2006.01); B29C 65/00 (2006.01); B29C 65/18 (2006.01);
U.S. Cl.
CPC ...
B32B 17/10045 (2013.01); B29C 48/21 (2019.02); B32B 7/12 (2013.01); B32B 17/10128 (2013.01); B32B 17/10458 (2013.01); B32B 17/10779 (2013.01); B32B 17/10834 (2013.01); B32B 17/10871 (2013.01); B32B 17/10972 (2013.01); B32B 37/0007 (2013.01); B32B 37/1009 (2013.01); C03C 17/30 (2013.01); B29C 65/18 (2013.01); B29C 66/73366 (2013.01); B29C 66/7465 (2013.01); B29L 2009/00 (2013.01); B32B 2037/0092 (2013.01); B32B 2037/243 (2013.01); B32B 2250/05 (2013.01); B32B 2250/42 (2013.01); B32B 2309/02 (2013.01); B32B 2309/68 (2013.01); B32B 2315/08 (2013.01); B32B 2367/00 (2013.01); B32B 2605/006 (2013.01);
Abstract

Methods for preparing multi-layer optical laminates include placing an optical film that is free form an adhesive layer between first and second glass substrates that are free of an adhesive layer, placing this laminate under vacuum, and then heating the laminate under pressure to a temperature above the softening temperature of the optical film. The glass substrates are free of an adhesive layer but may include a silane surface treatment. The resulting multi-layer laminate is optically clear and does not show scattering of reflected light by the optical film.

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Saito, Kazuta. (2022). Method for preparing multi-layer optical laminates (U.S. Patent No. 11396161). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11396161

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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