Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1992-09-16
1994-10-04
Kight, III, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
528376, 560147, C08G 1877
Patent
active
053527577
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.
REFERENCES:
patent: 3397189 (1968-08-01), Erickson et al.
patent: 3661744 (1972-05-01), Kehr et al.
Lavault Sylvie
Velleret Gerard
Johnson Rachel
Kight III John
Rhone-Poulenc Chimie
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