Composition based on allyl monomers and peroxide(s) for the manufacture of organic glasses
US10851222B2 · kind B2 · utility
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1References
17Claims
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Key dates
| Filing date | Oct 26, 2017 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Nov 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/041
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.