Composition for optical articles and optical articles made therewith
US10407540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 2016 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Mar 6, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D4/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An exemplary polymerizable composition includes the reaction product of (a) diethyleneglycol bischloroformate; (b) allyl alcohol; (c) 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; (d) optionally, ethyleneglycol bischloroformate; and (e) optionally, at least one linear or branched aliphatic polyol having two to six hydroxyl groups. Another exemplary polymerizable composition includes the reaction product of (a) allyl alcohol; (b) 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; (c) ethyleneglycol bischloroformate; and (d) optionally, at least one linear or branched aliphatic polyol having two to six hydroxyl groups is also described. A reaction product, a polymerizate including the polymerizable composition, and an optical article including the polymerizable composition are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.