AN IMPROVED LENS OF DIETHYLE?? GLYCOL BIS ALLYL CARBONATE CR-39 AND A PROCESS FOR PREPARATION THEREOF

AN IMPROVED LENS OF DIETHYLE?? GLYCOL BIS ALLYL CARBONATE CR-39 AND A PROCESS FOR PREPARATION THEREOF

An improved lens comprising CR-39 and polytoiol in the ratio of 30-50% of CR-39, 70-50% of polythiol and total weight of TDI and CR-39 is 25-50% by weight of the total material and wherein CR-39, Polythiol and TDI is present preferably in the ratio of 31-32%, 31-32% and 36-38% respectively wherein t...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: SESHADRI, GEETA, KHANDAL, RAKESH, KUMAR, JHA, GOURISHANKER
Format: Patent
Sprache:eng ; fre
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
ORGANIC MACROMOLECULAR COMPOUNDS
PHYSICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:An improved lens comprising CR-39 and polytoiol in the ratio of 30-50% of CR-39, 70-50% of polythiol and total weight of TDI and CR-39 is 25-50% by weight of the total material and wherein CR-39, Polythiol and TDI is present preferably in the ratio of 31-32%, 31-32% and 36-38% respectively wherein the Refractive Index of the lens is in the order of 1.59-1.65. L'invention concerne une lentille améliorée comprenant du CR-39 et du polythiol en un rapport compris entre 30 et 50 % de CR-39, 70 à 50 % de polythiol, le poids total de TDI et de CR-39 étant de 25 à 50 % en poids du matériau total et le CR-39, le polythiol et le TDI étant présents de préférence en un rapport de 31 à 32 %, 31 à 32 % et 36 à 38 % respectivement, l'indice de réfraction de la lentille étant de l'ordre de 1,59 à 1,65.