High index/high abbe number composition

Details High index/high abbe number composition High index/high abbe number composition

C - Chemistry, Metallurgy

08

F

C08F 220/38 (2006.01) C08F 220/20 (2006.01) C08F 220/30 (2006.01) C08F 222/10 (2006.01) C08L 33/14 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2221939

A cross-linkable polymeric casting composition including an effective amount of A: an acrylic or methacrylic monomer which provides high rigidity and low colour dispersion (High Abbe number) to the final product; B: a di- or polythio compound; C: a di- or polyvinyl monomer; and optionally D: a polymerisable comonomer.

Composition polymère réticulable de moulage comportant une quantité efficace de A: un monomère acrylique ou méthacrylique conférant une grande rigidité et une faible dispersion des couleurs (nombre d'Abbe élevé) au produit final; B: un composé dithio ou polythio; C: un monomère divinyle ou polyvinyle; et, éventuellement, D: un comonomère polymérisable.

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