Composition based on allyl monomers and peroxide(s) for the manufacture of organic glasses

1. 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.

2. The process according to claim 1 , wherein the peroxide(s) of formula (I) is/are selected from the group consisting of 1-methoxy-1-tert-amylperoxycyclohexane (TAPMC), 1-methoxy-1-t-butylperoxycyclohexane (TBPMC), 1-methoxy-1-t-amylperoxy-3,3,5-trimethylcyclohexane, 1-methoxy-1-t-butylperoxy-3,3,5-trimethylcyclohexane, 1-ethoxy-1-t-amylperoxycyclohexane (TAPEC), 1-ethoxy-1-t-butylperoxycyclohexane (TBPEC), 1-ethoxy-1-t-amylperoxy-3,3,5-trimethylcyclohexane and/or 1-ethoxy-1-t-butylperoxy-3,3,5-trimethylcyclohexane.

3. The process according to claim 1 , wherein the peroxide of formula (I) is 1-methoxy-1-tert-amylperoxycyclohexane.

4. The process according to claim 1 , wherein the allylic monomer(s) is/are chosen from bis(allyl carbonate) monomers.

5. The process according to claim 1 , wherein the allylic monomer(s) is/are chosen from diol bis(allyl carbonate) monomers of the following formula (II):

wherein in formula (II):

R a and R c , which are identical or different, represent an allyl group of the following formula:

wherein R d is selected from the group consisting of:

a hydrogen atom,

a halogen atom, and

a linear or branched C 1 -C 4 alkyl group, and

R b is selected from the group consisting of alkylene groups, alkylene ether groups, aromatic alkylene ether groups, alkylene polyether groups, alkylene carbonate groups and mixtures thereof.

6. The process according to claim 1 , 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.

7. The process according to claim 1 , wherein the allylic monomer is diethylene glycol bis(allyl carbonate).

8. The process according to claim 1 , wherein the allylic copolymer(s) is/are obtained from the polymerization of diol bis(allyl carbonate) monomers of the following formula (II):

wherein in formula (II):

R a and R c , which are identical or different, represent an allyl group of the following formula:

wherein R d is selected from the group consisting of:

a hydrogen atom,

a halogen atom, and

a linear or branched C 1 -C 4 alkyl group, and

R b is selected from the group consisting of alkylene groups, alkylene ether groups, aromatic alkylene ether groups, alkylene polyether groups, alkylene carbonate groups and mixtures thereof.

9. The process according to claim 1 , wherein the allylic copolymer(s) is/are chosen from polyol poly(allyl carbonates).

10. The process according to claim 1 , wherein the allylic copolymer(s) is/are obtained from the polymerization of a bis(allyl carbonate) monomer and a polyether diol.

11. 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.

12. The composition according to claim 11 , further comprising at least one additional peroxide other than the peroxides of formula (I).

13. The composition according to claim 12 , wherein the ratio between the peroxide(s) of formula (I) and the at least one additional peroxide other than the peroxides of formula (I) is between 99:1 and 30:70.

14. The composition according to claim 11 , further comprising at least one photoinitiator.

15. A process for preparing a polymer composition comprising at least one step of polymerization of a polymerizable composition as defined according to claim 11 one or more temperatures ranging from 40 to 140° C.

16. A process for preparing an organic glass comprising at least the following successive steps:

a step of introducing a polymerizable composition as defined according to claim 11 into a device comprising at least one mould,

a step of polymerization of said composition at one or more temperatures ranging from 40 to 140° C., and

a step of recovering the organic glass.

17. The composition according to claim 11 , further comprising at least one additional peroxide other than the peroxides of formula (I), wherein the at least one additional peroxide is chosen from the peroxides of formula (III):

bis- t -alkylperoxycyclohexane  (III),

wherein in formula (III), each 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.