Patent
1988-06-22
1989-04-25
Schofer, Joseph L.
G02B 523
Patent
active
048242195
ABSTRACT:
In one embodiment this invention provides a nonlinear optical medium which is a transparent film of a thermoplastic polymer composed of recurring monomeric units corresponding to the formula: ##STR1##
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patent: 4083835 (1978-04-01), Pohlemann et al.
patent: 4171413 (1979-10-01), Hartman et al.
Hoechst Celanese Corporation
Sarofim N.
Schofer Joseph L.
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