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:
Apr. 25, 2000
Filed:
Mar. 09, 1998
Applicant:
Inventors:
Assignee:
Daicel Chemical Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428327 ; 428412 ; 4284744 ; 4284755 ; 428480 ; 428910 ; 525 / ; 525 / ; 525 / ; 525 95 ; 525 96 ; 525 98 ; 525165 ; 525176 ; 525177 ; 525178 ; 525184 ; 525420 ; 525437 ; 525444 ;
Abstract
A tearable film comprising a resin blend which is: (1) a blend of a first polymer which is a styrenic polymer and a second polymer selected from the group consisting of a polyester and a polyamide; or (2) a first polymer which is a polyester and a second polymer selected from the group consisting of a polycarbonate, an acrylic polymer and a polyamide. The film has an continuous phase and a dispersed phase, thereby forming an islands-sea structure, wherein the continuous phase constitutes 35-98 wt % and the dispersed phase constitutes 2-65 wt % of the film.