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1. (WO1992010471) NEW SULPHUROUS COMPOUNDS AND NEW POLYMERS OBTAINED THEREFROM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1992/010471 International Application No.: PCT/FR1991/001014
Publication Date: 25.06.1992 International Filing Date: 16.12.1991
IPC:
C07C 323/52 (2006.01) ,C08G 18/38 (2006.01) ,G02B 1/04 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
323
Thiols, sulfides, hydropolysulfides or polysulfides substituted by halogen, oxygen or nitrogen atoms, or by sulfur atoms not being part of thio groups
50
containing thio groups and carboxyl groups bound to the same carbon skeleton
51
having the sulfur atoms of the thio groups bound to acyclic carbon atoms of the carbon skeleton
52
the carbon skeleton being acyclic and saturated
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
18
Polymeric products of isocyanates or isothiocyanates
06
with compounds having active hydrogen
28
characterised by the compounds used containing active hydrogen
30
Low-molecular-weight compounds
38
having hetero atoms other than oxygen
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1
Optical elements characterised by the material of which they are made; Optical coatings for optical elements
04
made of organic materials, e.g. plastics
Applicants:
RHONE-POULENC CHIMIE [FR/FR]; Direction des Brevets 25, quai Paul-Doumer F-92408 Courbevoie, FR (AllExceptUS)
LAVAULT, Sylvie [FR/FR]; FR (UsOnly)
VELLERET, Gérard [FR/FR]; FR (UsOnly)
Inventors:
LAVAULT, Sylvie; FR
VELLERET, Gérard; FR
Agent:
RICALENS, François; Rhône-Poulenc Chimie - Direction des Brevets 25, quai Paul-Doumer F-92408 Courbevoie Cédex, FR
Priority Data:
90/1597714.12.1990FR
Title (EN) NEW SULPHUROUS COMPOUNDS AND NEW POLYMERS OBTAINED THEREFROM
(FR) NOUVEAUX COMPOSES SOUFRES ET NOUVEAUX POLYMERES OBTENUS A PARTIR DE CES COMPOSES SOUFRES
Abstract:
(EN) These new sulphurous compounds are mercapto-carboxylic polyol esters. The use of these sulphurous esters in preparing polymers with a refraction index of over 1.50 is also described. The manufacture of optical discs and waveguides is one of the optical applications of these polymers.
(FR) La présente invention concerne de nouveaux composés soufrés qui sont des esters de polyols d'acides mercapto-carboxyliques. Elle concerne également l'utilisation de ces esters soufrés pour préparer des polymères présentant un indice de réfraction supérieur à 1,50. Parmi les applications optiques de ces polymères, on peut citer la fabrication de disques optiques et de guides d'ondes.
Designated States: AU, BR, JP, US
Publication Language: French (FR)
Filing Language: French (FR)
Also published as:
ES2055564EP0490777JPH06502652DE000069101697AU1991091449FR2670485
DK0490777