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. 20, 1984
Filed:
Apr. 12, 1983
Yozo Ohba, Ibaraki, JP;
Takashi Toyoda, Ibaraki, JP;
Masaaki Yamanaka, Ibaraki, JP;
Fukashi Hashimoto, Mie, JP;
Tetsuji Kakizaki, Mie, JP;
Mitsubishi Petrochemical Co., Ltd., Tokyo, JP;
Oji Yuka Goseishi Co., Ltd., Tokyo, JP;
Abstract
A stretched film having excellent printing and writing properties and mechanical strength is produced by stretching a film molded from a styrene-grafted polyolefin resin in at least one direction. The styrene-grafted polyolefin resin is produced by heating an aqueous suspension containing 100 parts by weight of polyolefin resin particles, from 10 to 400 parts by weight of a styrene monomer, and a free radical polymerization initiator in an amount of from 0.01 to 1 part by weight per 100 parts by weight of the styrene monomer.