Polymerizable composition for optical articles and optical articles made therefrom
US11634537B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2018 |
| Grant date | Apr 25, 2023 |
| Priority date | — |
| Expiry date | Apr 26, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G64/226
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention is directed to a polymerizable composition comprising (A) a reaction product of: (a) diethyleneglycol bischloroformate, ethyleneglycol bischloroformate, or combinations thereof; (b) allyl alcohol; (c) optionally, a cyclic polyol selected from the group consisting of a cycloaliphatic polyol having at least one secondary hydroxyl group, a heterocyclic polyol having primary and/or secondary hydroxyl groups, and mixtures thereof; and (d) optionally, at least one linear or branched aliphatic polyol having two to six hydroxyl groups; and (B) an organic peroxide comprising at least three peroxide groups. A polymerizate and/or an optical article comprising the polymerizable compositions of the invention are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.