Hoechst Celanese Corporation

At&t Bell Laboratories

Hoecast Celanese Corporation

Thomas M Leslie

James B Stamatoff

Tessie M Che

Alan Buckley

Dagobert E Stuetz

Ronald N DeMartino

Donald R Ulrich

Hyun-Nam Yoon

John W Goodby

Gunilla E Gillberg-LaForce

Marie Borzo

James R Sounik

Garo Khanarian

Hyun Nam Yoon

Bernice I Feuer

Iain McCulloch

Mark J Sebastian

Jayantilal S Patel

John M Geary

Jacquelyn Popolo

Ching F Shu

Karsten Blatter

Frank Battito

Doanld R Ulrich

In one embodiment this invention provides poly(maleic anhydride) side chain copolymers which exhibit nonlinear optical susceptibility and which can be formed into crack-free thin film waveguiding media. An invention copolymer is illustrated by the recurring structure: ##STR1## The side chain chromophores can be oriented by an external field to form a noncentrosymmetric thin film which exhibits second order nonlinear optical susceptibility.

Poly(maleic anhydride) copolymers with side chains exhibiting nonlinear

In one embodiment this invention provides polymerizable tetraazaporphyrin dyes, and corresponding polymers which can be formed into thin film optical waveguiding media which exhibit nonlinear optical susceptibility.

Tetraazaporphyrin monomers and polymers

This invention provides novel vinyl polymers with pendant side chains which exhibit nonlinear optical response. The polymers have utility as a transparent optical media in optical devices. An invention vinyl polymer is illustrated by the acrylate copolymer of the following structure: ##STR1##

Vinyl polymers exhibiting nonlinear optical response

This invention provides multistep process embodiments for the production of novel esters which exhibit nonlinear optical response. A process embodiment is illustrated by the reaction of a Schiff base with a substituted acetic acid to form a stilbene alcohol intermediate: ##STR1## The stilbene alcohol intermediate is decarboxylated, and then is esterified in the presence of a pyridine type catalyst to provide an ester with a conjugated structure.

Process for the production of esters exhibiting nonlinear optical

This invention provides an optical medium which consists of a composite of a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline component. In one embodiment this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline compound.

Process for producing liquid crystalline composites

This invention provides a nonlinear optical medium which is a composite of a microporous inorganic oxide glass which contains an incorporated solution of a solvent and an organic component which exhibits nonlinear optical response. In one embodiment the solution incorporated in the microporous glass monolith is composed of dioxane and 4-N,N-dimethylamino-4'-nitrostilbene.

Nonlinear optically responsive inorganic-organic composite compositions

This invention provides an optical medium which consists of a composite of a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline polymer component. In one embodiment this invention provides a sole-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline polymer.

Process for preparing liquid crystalline polymer composites

This invention provides an optical medium which consists of a composite of a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline polymer component. In one embodient this invention provides a sol-gel process for producing a composite of a transparent homogeneous microporous inorganic oxide glass monolith and a liquid crystalline polymer.

Electrooptic device having a liquid crystalline polymer composite

Optical light switch or modulator device with a liquid crystalline

In a preferred embodiment this invention provides novel organopolysiloxanes which exhibit nonlinear optical response. Illustrative of an invention organopolysiloxane is a polymer corresponding to the formula: ##STR1## wherein n is an integer of at least 5.

Organopolysiloxanes exhibiting nonlinear response

This invention provides a process for producing a transparent optical medium consisting of a liquid crystalline polymer which exhibits third order nonlinear optical response. Illustrative of an invention optical medium is a transparent film of a side chain liquid crystalline polymer corresponding to the formula: ##STR1## The transparent film has an isotropic molecular configuration with macroscopic centrosymmetry, and exhibits essentially no scattering of a transmitted incident light beam.

Side chain liquid crystalline polymeric media exhibiting third order

A novel composite of liquid crystal droplets having a diameter of no more than 0.1 micron dispersed in a synthetic resin matrix is disclosed. The novel material does not scatter light to any appreciable degree.

Microdisperse polymer/liquid crystal composite

In one embodiment this invention provides a light switch or light modulator device having a nonlinear optical component which is a blend of organic constituents exhibiting nonlinear optical response. Illustrative of the organic nonlinear optical component is a transparent film consisting of a blend of (1) a host thermotropic liquid crystalline polymer such as: ##STR1## and (2) an organic compound such as: ##STR2##

Organic nonlinear optical media

In a preferred embodiment this invention provides novel organopolysiloxanes which exhibit nonlinear optical response. Illustrative of an invention organopolysiloxane is a polymer corresponding to the formula: ##STR1## where n is an integer of at least 5.

Growing community of inventors

Clinton Township, NJ, United States of America

Thomas M Leslie