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:
Aug. 14, 2001
Filed:
Jun. 30, 1999
Applicant:
Inventors:
Syuji Ichimura, Tokyo, JP;
Yoshinaga Tsuzuki, Tokyo, JP;
Kinnosuke Hino, Tokyo, JP;
Mikihiro Endo, Tokyo, JP;
Kazuhiro Kono, Tokyo, JP;
Assignee:
Nichiban Company Limited, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09J 7/02 ; C09J 7/00 ; C09J 7/04 ;
U.S. Cl.
CPC ...
C09J 7/02 ; C09J 7/00 ; C09J 7/04 ;
Abstract
The present invention is to provide a pressure-sensitive adhesive sheet for surface protection, which has a substrate containing an ethylene/propylene copolymer and an ethylene/1-butene copolymer in a weight ratio of 60:40 to 90:10, and an adhesive composition for pressure-sensitive adhesive sheets for surface protection, which contains 5 to 30 parts by weight of a rosin resin tackifier based on 100 parts by weight of a blend comprising 50 to 100% by weight of a polyisobutylene and/or a butyl rubber and 50 to 0% by weight of a polybutene.