Composition based on allyl monomers and peroxide(s) for the manufacture of organic glasses
AssigneeArkema France
InventorsMélanie Lafarge, Bruno Van Hemelryck, Jean-Pierre Disson
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Abstract
The present invention relates to the use of one or more specific organic peroxides for the polymerization of an allylic monomer and/or at least one allylic copolymer. The invention also relates to a composition comprising at least one allylic monomer and/or at least one allylic copolymer and at least one specific organic peroxide. The invention also relates to the use of the composition as defined above for the manufacture of an organic glass, preferably an ophthalmic lens, possibly optionally being tinted by means of pigments and/or organic dyes.
Claims17
A process for polymerizing one or more allylic monomers and/or allylic copolymers comprising using one or more peroxides of the following formula (I):
- 1-alkoxy-1-t-alkylperoxycyclohexane (I)
- wherein in formula (I) the alkoxy group comprises from 1 to 4 carbon atoms, the t-alkyl group comprises from 4 to 12 carbon atoms, and the cyclohexane ring is optionally substituted by 1 or 3 alkyl groups, each comprising from 1 to 3 carbon atoms.
A polymerizable composition comprising at least one peroxide of formula (I):
- 1-alkoxy-1-t-alkylperoxycyclohexane (I),
- wherein in formula (I), the alkoxy group comprises from 1 to 4 carbon atoms, the t-alkyl group comprises from 4 to 12 carbon atoms, and the cyclohexane ring is optionally substituted by 1 or 3 alkyl groups, each comprising from 1 to 3 carbon atoms, and at least one allylic monomer, wherein the allylic monomer(s) is/are selected from the group consisting of ethylene glycol bis(allyl carbonate), diethylene glycol bis(2-methyl carbonate), diethylene glycol bis(allyl carbonate), ethylene glycol bis(2-chloro allyl carbonate), triethylene glycol bis(allyl carbonate), 1,3-propanediol bis(allyl carbonate), propylene glycol bis(2-ethyl allyl carbonate), 1,3-butenediol bis(allyl carbonate), 1,4-butenediol bis(2-bromo allyl carbonate), dipropylene glycol bis(allyl carbonate), trimethylene glycol bis(2-ethyl allyl carbonate), pentamethylene glycol bis(allyl carbonate), isopropylene bis phenol-A bis(allyl carbonate) and mixtures thereof, and/or at least one allylic copolymer, wherein the allylic copolymer(s) is/are obtained from the polymerization of diol bis(allyl carbonate) monomers, wherein the diol bis(allyl carbonate) monomers are selected from the group consisting of ethylene glycol bis(allyl carbonate), diethylene glycol bis(2-methyl carbonate), diethylene glycol bis(allyl carbonate), ethylene glycol bis(2-chloro allyl carbonate), triethylene glycol bis(allyl carbonate), 1,3-propanediol bis(allyl carbonate), propylene glycol bis(2-ethyl allyl carbonate), 1,3-butenediol bis(allyl carbonate), 1,4-butenediol bis(2-bromo allyl carbonate), dipropylene glycol bis(allyl carbonate), trimethylene glycol bis(2-ethyl allyl carbonate), pentamethylene glycol bis(allyl carbonate), isopropylene bis phenol-A bis(allyl carbonate) and mixtures.
Dependencies are inferred from the claim text.