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:
Mar. 29, 1977
Filed:
Sep. 04, 1975
Applicant:
Inventors:
Noritoshi Watanabe, Hyogo, JA;
Seigoro Fujita, Hyogo, JA;
Kazuo Shibata, Hyogo, JA;
Shiho Iwawaki, Hyogo, JA;
Hiromu Takeda, Shiga, JA;
Assignees:
Kanzaki Paper Manufacturing Co., Ltd., Tokyo, JA;
Toray Industries, Inc., Tokyo, JA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D21H / ; D21H / ; D21H / ;
U.S. Cl.
CPC ...
428342 ; 428522 ; 427161 ; 427121 ; 1621 / ; 162148 ; 162146 ;
Abstract
The electrostatic recording material comprises an electroconductive transparentized base sheet having a dielectric layer thereon. The transparentized base sheet is obtained by subjecting to a transparentizing treatment with moisture, heat and pressure a fibrous matrix sheet of a mixture of natural pulp with synthetic pulp formed of a blended polymer system consisting essentially of polyvinyl alcohol-acrylonitrile copolymer and acrylonitrile-styrene copolymer.