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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 11396615 B1

PDFFull Text
Date of Patent:
Jul. 26, 2022

Filed:

Apr. 25, 2018

Protective film

Applicant:

Sumitomo Bakelite Co., Ltd., Shinagawa-ku, JP;

Inventor:

Kazufusa Onodera, Shinagawa-ku, JP;

Assignee:

SUMITOMO BAKELITE CO., LTD., Shinagawa-ku, JP;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Anish P Desai

Int. Cl.
CPC ...
B29C 51/14 (2006.01); C09J 7/29 (2018.01); C09J 7/38 (2018.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/32 (2006.01); B32B 27/36 (2006.01); C09J 123/12 (2006.01); C09J 153/00 (2006.01); B29K 23/00 (2006.01); B29K 69/00 (2006.01); B29L 9/00 (2006.01);
U.S. Cl.
CPC ...
C09J 7/29 (2018.01); B29C 51/14 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/32 (2013.01); B32B 27/365 (2013.01); C09J 7/387 (2018.01); C09J 123/12 (2013.01); C09J 153/00 (2013.01); B29K 2023/12 (2013.01); B29K 2069/00 (2013.01); B29L 2009/00 (2013.01); B32B 2250/24 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2405/00 (2013.01); C09J 2423/10 (2013.01); C09J 2453/00 (2013.01); Y10T 428/2848 (2015.01); Y10T 428/2883 (2015.01);
Abstract

A protective filmof the present invention is used by being attached to a resin substrateat the time of performing heat bending on the resin substratewhile heating the resin substrate. The protective filmincludes a base material layer and a pressure sensitive adhesive layer which is positioned between the base material layer and the resin substrateand is adhered to the resin substrate. The base material layer is formed of a laminate having a first layer which is positioned on the opposite side of the pressure sensitive adhesive layer, contains a thermoplastic resin, and has a melting point of 150° C. or higher and a second layer which is positioned on the pressure sensitive adhesive layer side, contains a thermoplastic resin, and has a melting point of lower than 120° C.

Find Patent Forward Citations

Onodera, Kazufusa. (2022). Protective film (U.S. Patent No. 11396615). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11396615

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

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