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. 04, 1994
Filed:
Sep. 16, 1992
Applicant:
Inventors:
Sylvie Lavault, Lyons, FR;
Gerard Velleret, Paris, FR;
Assignee:
Rhone-Poulenc Chimie, Courbevoie, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528 80 ; 528376 ; 560147 ;
Abstract
The present invention relates to new sulfur compounds which are polyol esters of mercaptocarboxylic acids. It also relates to the use of these sulfur esters for preparing polymers exhibiting a refractive index higher than 1.50. The manufacture of optical discs and of waveguides may be mentioned among the optical applications of these polymers.