公开(公告)号：FR2703056A1

公开(公告)日：1994-09-30

申请号：FR9303537

申请日：1993-03-26

Applicant: ESSILOR INT

Inventor： RUBEN GARCIA ,  GABRIEL KEITA ,  LEANIRITH YEAN

IPC: C08F18/24 ,  C08F216/02 ,  C08F218/00 ,  G02B1/04 ,  C08F222/16 ,  B29D11/00

Abstract: Polymer composition resulting from the polymerisation of a polymerisable composition including: - at least 50 % by weight of a monomer of a mixture of monomers corresponding to the formula (I): in which: X denotes and R and R' denote H or CH3; - from 0 to 50 % by weight of one or a number of mono- or polyfunctional allyl, vinyl, acrylic or methacrylic comonomer(s) (II): - from 0.2 to 10 %, relative to the weight of the components I + II, of a compound of formula (III): in which R4 and R5 denote hydrogen or else one of the radicals R4 and R5 is a hydrogen atom while the other forms a ring with R2; R1, R2 and R3 are hydrogen or alkyl capable of being substituted with OH and/or interrupted by an ether, ester or ketone functional group.