Crosslinkable thermoplastic and crosslinked thermoset nonlinear optical polymeric compositions derived from aromatic dihydroxy compounds
US5776374A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1995 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Nov 7, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/621
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention relates to crosslinkable thermoplastic compositions comprising a plurality of crosslinkable moieties, capable of undergoing addition polymerization, incorporated by functionalization of the precursor poly(hydroxy ethers). The poly(hydroxy ethers) comprise recurring moieties derived from aromatic dihydroxy compounds. The crosslinkable polymeric compositions are crosslinked to obtain crosslinked thermoset polymeric compositions of the invention. The polymeric compositions of the inventions can be suitably used either as an active guiding layer, and/or as a NLO active upper and lower cladding layers in an electro-optic device. The polymeric compositions can also be used as non-NLO polymers for the upper and lower cladding layers, prior to orientation by the application of an electric field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.