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:
Nov. 09, 1982
Filed:
Dec. 18, 1979
Applicant:
Inventors:
Saburo Akimoto, Yokohama, JP;
Sachio Maruchi, Tokyo, JP;
Masahiro Fukaya, Chiba, JP;
Tomishi Shibano, Tama, JP;
Ippei Chimura, Kamakura, JP;
Hiroshi Asakura, Kamakura, JP;
Keisuke Kitazume, Kamakura, JP;
Shiro Fuse, Kamakura, JP;
Assignees:
Sanyo-Kokusaku Pulp Co., Kamakura, JP;
Toyo Chemical Co., Ltd., Kamakura, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428 40 ; 15624417 ; 156327 ; 427208 ; 4272084 ; 4272088 ; 428212 ; 428342 ; 428343 ; 428345 ; 428352 ; 428354 ; 428335 ; 428516 ; 428906 ;
Abstract
A widthwise-stretched film is lap-sealed on one side of a backing paper, and polyethylene is extruded and coated on the surface of said film to form a release layer thereon. A pressure-sensitive adhesive composed mainly of polyacrylic ester is then coated on the other side of the backing paper. In this manner, a paper-backed adhesive tape of the pressure-sensitive type is prepared.