The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 1996
Filed:
Aug. 02, 1993
Pushkara R Varanasi, Monmouth Junction, NJ (US);
Kwan-Yue A Jen, Old Bridge, NJ (US);
King Y Wong, Monmouth Junction, NJ (US);
Robert M Mininni, Stockton, NJ (US);
Enichem S.p.A., , IT;
Abstract
Nonlinear optical compounds having structures with delocalized resonance configurations corresponding to: ##STR1## wherein A.sub.1 and A.sub.2 are independently selected from electron withdrawing moieties; R.sub.1 and R.sub.2 are independently selected from aromatic rings, heteroaromatic rings and fused ring systems consisting of two or three aromatic or heteroaromatic rings; n and m are integers from one to five, and D.sub.1 and D.sub.2 are independently selected from hydrogen, electron donating groups and polymer attachment groups, with the proviso that at least one of D.sub.1 and D.sub.2 is an electron donating group. Polymers blended with, cured with, or having pendant side chains of the disclosed nonlinear optical materials and exhibiting second order nonlinear optical properties are also disclosed.