Polarized thin films from dye-substituted polymers containing hydrophobically terminated stilbazolium radicals
US5225285A · kind A · utility
8Cited by
1References
16Claims
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Key dates
| Filing date | Oct 5, 1990 |
| Grant date | Jul 6, 1993 |
| Priority date | — |
| Expiry date | Oct 5, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31768
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Comb-shaped polymers, comprised of hydrophilic backbones and dye-containi hydrophobic side chains are fabricated into multilayered, polarized, noncentrosymmetric, thin films by means of Langmuir-Blodgett processing techniques. These films exhibit harmonic, generated by shining a laser through the film, increases quadratically with the number of layers of polymeric dye in the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.