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...

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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
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