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:
Jan. 07, 1997
Filed:
May. 20, 1993
Applicant:
Inventor:
Masaaki Arakawa, Osaka, JP;
Assignee:
Nitto Denko Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; A61F / ;
U.S. Cl.
CPC ...
428 401 ; 428 415 ; 428 418 ; 428343 ; 428352 ; 604390 ;
Abstract
A releasing part structure having a boundary component which is constituted by a pressure-sensitive adhesive layer and a long chain alkyl type or silicone type releasing agent layer, wherein said pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive composition comprising a rubber-based or acrylic pressure-sensitive adhesive, and the releasing part structure is constituted such that when the pressure-sensitive adhesive layer is released from the releasing agent layer, the sound pressure level in releasing the pressure-sensitive adhesive layer from the releasing agent layer at a releasing speed of at least 1.times.10.sup.2 mm/minute is 80 dB or less.