C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 79/02 (2006.01) C08C 19/14 (2006.01) C08F 8/22 (2006.01) C08G 63/00 (2006.01) C08G 79/04 (2006.01) G02B 1/04 (2006.01)
Patent
CA 2390643
High refractive index, melt processable polyphosphonates and methods for preparing the same are provided. These poylmers are particularly useful for optical and ophthalmic parts, such as lenses. A method of preparing optical and ophthalmic lenses by injection molding the polymers of the present invention into the form of the optical or ophthalmic lenses is also provided
L'invention concerne des polyphosphonates transformables à chaud et à indice de réfraction élevé, ainsi que des procédés pour la préparation de ces polyphosphonates. Ces polymères conviennent particulièrement pour des éléments optiques et ophtalmologiques, tels que des lentilles. L'invention concerne également un procédé de préparation de lentilles optiques et ophtalmologiques par moulage par injection des polymères selon l'invention dans la forme des lentilles optiques ou ophtalmologiques.
Bhatnagar Atul
Mcgrath James E.
Sekharipuram Venkat
Shobha Hosadurga
Essilor International (compagnie Generale D'optique)
Johnson & Johnson Vision Products Inc.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Virginia Tech Intellectual Properties Inc.
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