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:
Oct. 17, 1978
Filed:
May. 26, 1977
Applicant:
Inventors:
Nobuo Fukushima, Otsu, JP;
Yukikazu Uemura, Amagasaki, JP;
Takuzo Okumura, Tokyo, JP;
Haruo Hayashida, Takatsuki, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29D / ; B29C / ;
U.S. Cl.
CPC ...
264288 ; 264175 ; 264289 ;
Abstract
A method for producing a high-strength film of amorphous aromatic high polymers comprising rolling said polymer between rolls, and stretching the rolled film of said polymer.