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. 30, 1990
Filed:
Nov. 29, 1989
Applicant:
Inventors:
Tsuruyoshi Matsumoto, Ohtake, JP;
Takashi Yamamoto, Ohtake, JP;
Teruhiko Sugimori, Ohtake, JP;
Katsuhiko Shimada, Ohtake, JP;
Assignee:
Mitsubishi Rayon Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; C07D / ; C08F / ;
U.S. Cl.
CPC ...
350 9634 ; 350 9630 ; 549455 ; 526247 ;
Abstract
A plastic core-plastic cladding optical fiber is described wherein the core is composed of a copolymer of a perfluorodioxole represented by the following formula: ##STR1## wherein R and R' independently represent F or CF.sub.3, with at least one other ethylenically unsaturated monomer substantially free of CH bonds and the copolymer has no first order transition temperature as determined by the differential scanning colorimetry (DSC) and has a second order transition temperature not lower than 100.degree. C. as determined by DSC.