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.:
Date of Patent:
Oct. 20, 2026
Filed:
Mar. 29, 2022
Sumitomo Bakelite Co., Ltd., Tokyo, JP;
SUMITOMO BAKELITE CO., LTD., Tokyo, JP;
Abstract
The protective filmis used by being attached to a resin substratein a case of performing heat bending on the resin substrate while heating the resin substrate. The protective film includes a base material layer and a pressure sensitive adhesive layer which is positioned between the base material layer and the resin substrate, and is adhered to the resin substrate. The base material layer is composed of a laminate including a first layer which is positioned on a side opposite to the pressure sensitive adhesive layer and a second layer which is positioned on a side of the pressure sensitive adhesive layer. The protective film has a trouser elongation strain at break of 300% or less in a direction inclined at 45° to both MD and TD of the protective film, which is measured in accordance with JIS K 7128-1 (1998).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile