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:
Mar. 05, 2024
Filed:
Sep. 25, 2019
Denka Company Limited, Tokyo, JP;
Manabu Miura, Ichihara, JP;
DENKA COMPANY LIMITED, Tokyo, JP;
Abstract
An adhesive sheet in which the adhesive strength of an adhesive layer to other adherends is low, adhesive layers can be firmly bonded to each other, the adhesive layers will not be destroyed even if the adhesive layers are peeled after having once been bonded, and sufficient bonding strength is obtained even if the adhesive layers are re-bonded. An adhesive sheet in which an intermediate layer containing methyl methacrylate-grafted natural rubber is provided on a substrate containing a vinyl chloride resin and a plasticizer, and an adhesive layer including an adhesive containing the plasticizer and a rubber component containing natural rubber and methyl methacrylate-grafted natural rubber is provided on the intermediate layer, wherein a degree of swelling of the rubber component with respect to the plasticizer is by a factor of 1.5 to 4.5.