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US 5,288,816 AGranted
Nonlinear optical aminoaryl hydrazones and nonlinear optical polymers thereof
AssigneeThe Dow Chemical Company
InventorsMuthiah N. Inbasekaran, Mark D. Newsham, Michael N. Mang
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Abstract
The present invention relates to nonlinear optical materials comprising aminoaryl hydrazones and to nonlinear optical polymeric compositions containing recurring covalently bonded moieties derived from the aminoaryl hydrazones of the invention. The polymeric compositions of the present invention have high glass transition temperatures and exhibit stable nonlinear optical activity at high temperatures over a period of time.
Claims36
A nonlinear optical polymeric composition comprising the reaction product of:
- (A) at least one compound containing an average of more than one epoxy group per molecule;
- and
- (B) at least a first reactant, the first reactant being an aminoaryl hydrazone, represented by the formula:
- ##STR12## wherein Ar is an aromatic carbocyclic or heterocyclic radical containing up to 30 non-hydrogen atoms, optionally substituted with a functionality capable of reacting with an epoxy group;
- A is independently at each occurrence either R or an aromatic group, optionally substituted with a functionality capable of reacting with an epoxy group;
- D is nil, carbonyl or sulfonyl;
- and R is hydrogen or a C.sub.1 to C.sub.20 hydrocarbyl radical;
- provided there is at least one aromatically substituted electron withdrawing group, and at least two active aromatic amino hydrogens capable of reacting with an epoxy group, in the aminoaryl hydrazone.
5 more elements
Dependencies are inferred from the claim text.