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. 17, 2004
Filed:
May. 16, 2003
Katsuhiko Sumita, Himeji, JP;
Masaya Omura, Himeji, JP;
Daicel Chemical Industries, Ltd., Sakai, JP;
Abstract
A surface protective film which can be easily peeled off from an adhesive resin layer it protects, is free of any component which may have an adverse effect on adhesion of the adhesive resin layer to an object to which it is bonded, and has no adverse effect on thickness uniformity or surface flatness of the adhesive resin layer, and a process for producing the same. More specifically, a surface protective film for protecting an adhesive resin layer, comprising a base film (A) coated, at least on one side, with a cellulose-based resin layer (B) having an SP value of 21.0 to 29.0(MPa) , determined by the Fedors method, and process for producing the same.