Azo compound suitable for use in non-linear optics
US5047516A · kind A · utility
1Cited by
4References
7Claims
0Family size
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Key dates
| Filing date | May 5, 1988 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | May 5, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K19/601
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An azo compound of the formula: ##STR1## wherein R is an non-hydrophilic aliphatic or cycloaliphatic group containing from 8 to 40 carbon atoms; PA0 m is 0 or 1; PA0 R.sup.1 is NO.sub.2, CN or COOR.sup.2 ; PA0 R.sup.2 is H or C.sub.1-4 -alkyl; PA0 n is from 1 to 4 and PA0 R.sup.3 is H, a metal or a group containing a tetravalent N atom. The compound has non-linear optical properties which make it suitable for use in an optical element such as a waveguide, for altering the characteristics of light passing through the element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.