| Patent Number |
Title Of Patent |
Date Issued |
| 6090973 |
Polyester toner composition for electrophotographic imaging systems |
July 18, 2000 |
| This invention provides a free-flowing polyester dye powder which has superior stability and transparency for application in electro-photographic imaging systems. In another embodiment this invention provides novel chromophoric diester monomers which are reacted with diol monomers to |
| 6090516 |
Polyester toner composition for electrophotographic imaging systems |
July 18, 2000 |
| This invention provides a free-flowing polyester dye powder which has superior stability and transparency for application in electrophotographic imaging systems. In another embodiment this invention provides novel chromophoric diester monomers which are reacted with diol monomers to form |
| 6060212 |
193 nm positive-working photoresist composition |
May 9, 2000 |
| A polymer that when used with a suitable photoacid generator (PAG) forms a positive working photoresist. The polymer comprises of a tartaric polyanhydride backbone, an acetal protected 1,2 diol group; and a fused ring acetal group pendant to the backbone. The acetal protected .alpha. |
| 6001980 |
Polyester toner composition for electrophotographic imaging systems |
December 14, 1999 |
| This invention provides a free-flowing polyester dye powder which has superior stability and transparency for application in electro-photographic imaging systems. In another embodiment this invention provides novel chromophoric diester monomers which are reacted with diol monomers to |
| 6001524 |
Toner particles for electrophotographic imaging applications |
December 14, 1999 |
| In one embodiment, this invention discloses polyester-based toner particles suitable to be dyed directly and coated with charge control agent and flow agent to result in particles suitable for color toner applications. The particles have ideal particle size, shape and distribution for su |
| 5998092 |
Water soluble negative-working photoresist composition |
December 7, 1999 |
| A water soluble polymer that when used with a suitable photoacid generator (PAG) forms a negative working water soluble photoresist. The polymer comprises of a backbone, such as polyvinyl ether, coupled by a linkage group to an acetal protected .beta.-keto acid group. With the addition o |
| 5994560 |
Resolution of racemic mixtures using polymers containing chiral units |
November 30, 1999 |
| Described herein is a novel process to resolve a racemic compound into its optically active isomers without need for chemical transformation such as salt formation. The process advantageously utilizes polymers containing chiral moieties in their repeat units as well as exhibiting critica |
| 5851423 |
Liquid crystal display devices incorporating polarizers comprising liquid crystal polymers |
December 22, 1998 |
| This invention discloses novel liquid crystal display devices containing polarizers which comprise a liquid crystal polymer and a dichroic absorber. Also disclosed is a process to construct the liquid crystal display devices. |
| 5843609 |
Polyester toner microspheres for electrophotographic imaging systems |
December 1, 1998 |
| This invention provides a free-flowing polyester dye microspheric powder which has superior stability and transparency for application in electrophotographic imaging systems. In another embodiment this invention provides a non-aqueous dispersion polymerization process for producing the |
| 5753145 |
Polarizer films with high thermal and hygroscopic stability |
May 19, 1998 |
| This invention provides novel liquid crystalline polymers which, when blended with a suitable dye at a suitable high temperature and extruded, yields polarizer films with superior thermal and hygroscopic stability and polarizing efficiency. The invention further provides a process to pre |
| 5739383 |
Resolution of racemic mixtures using polymers containing chiral units |
April 14, 1998 |
| Described herein is a novel process to resolve a racemic compound into its optically active isomers without need for chemical transformation such as salt formation. The process advantageously utilizes polymers containing chiral moieties in their repeat units as well as exhibiting critica |
| 5738918 |
Laminates of liquid crystalline polymeric films for polarizer applications |
April 14, 1998 |
| This invention provides laminates useful for display device applications. An illustrative laminate comprises a polarizing film, and a protective layer, bonded by means of an intermediary adhesive layer. A polarizing film useful for such a laminate construction comprises a liquid crys |
| 5707566 |
Process for preparing high performance polarizer films |
January 13, 1998 |
| This invention provides a novel process to prepare high performance polarizing film. In one embodiment, the process includes melt-blending a film-forming wholly aromatic thermotropic liquid crystalline polyester and a dichroic dye and then extruding the blend at a suitable temperature to |
| 5670871 |
Polymeric film electrooptic sensor device |
September 23, 1997 |
| This invention provides an electrooptic sensor device which is adapted to measure micro-circuit electrical signals with subpicosecond resolution. The sensor device has an electrooptic organic polymer film matrix. The sensor device is positioned adjacent to an electrical signal transmissi |
| 5667719 |
High extinction polarizer films comprising liquid crystal polymeric moieties |
September 16, 1997 |
| This invention provides all organic high extinction polarizers based on blends of novel liquid crystalline polymers and suitable dichroic dyes. The invention further provides a process to prepare such polarizer films. |
| 5247042 |
Isotropic acrylic polymer exhibiting nonlinear optical response |
September 21, 1993 |
| This invention provides novel side chain polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in all-optical and electrooptical light switch and light modulator devices.An invention side chain polymer is illustrated by the following |
| 5234557 |
Nonlinear optical medium with a stable noncentrosymmetric polymeric structure |
August 10, 1993 |
| A process for stabilizing a poled nonlinear optical media is disclosed and claimed. The inventive process includes the steps of heating a film of suitable polymer above its Tg, poling the film in an electric field and heat treating the medium while the field is maintained. Films so produ |
| 5143577 |
Smooth-wall polymeric channel and rib waveguides exhibiting low optical loss |
September 1, 1992 |
| This invention provides process embodiments for fabricating polymeric channel or rib optical waveguides.An invention optical waveguide has a channel or rib structure which has a polymer thin film smooth-wall lining on its surfaces to minimize optical loss by scattering of propagating wav |
| 5053168 |
Nonlinear optical medium with a stable noncentrosymmetric polymeric structure |
October 1, 1991 |
| This invention provides nonlinear optical media which have a stable noncentrosymmetric array of side chain polymer molecules, such as an electric field poled and stabilized medium of a 50/50 copolymer of N-methyl-4-[2-(4-nitrophenyl)ethenyl]phenylamino-2-ethyl 2-methyl-2-propenoate a |
| 5044725 |
Polymeric thin film waveguide media |
September 3, 1991 |
| This invention provides polymeric thin film optical waveguide media which exhibit nonlinear optical response, and which have utility as an optical waveguide component in all-optical and electrooptical light switch and light modulator devices. An invention waveguide medium consists of a t |
| 5007696 |
Electro-optic channel waveguide |
April 16, 1991 |
| A three-dimensional electro-optic waveguide is formed as a channel in a structure made of an organic non-linear optical polymer. A poling electric field is maintained in a portion of the polymer structure defining the channel, and the polymer structure is heated above the glass-transitio |
| 5006285 |
Electro-optic channel waveguide |
April 9, 1991 |
| A three-dimensional electro-optic waveguide is formed as a channel in a structure made of an organic non-linear optical polymer. A poling electric field is maintained in a portion of the polymer structure defining the channel, and the polymer structure is heated above the glass-transitio |
| 5002361 |
Polymeric thin film waveguide media |
March 26, 1991 |
| This invention provides polymeric thin film optical waveguide media which exhibit nonlinear optical response, and which have utility as an optical waveguide component in all-optical and electrooptical light switch and light modulator devices. An invention waveguide medium consists of a t |
| 4962160 |
Side chain liquid crystalline polymers exhibiting nonlinear optical response |
October 9, 1990 |
| This invention provides novel side chain liquid crystalline polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in electrooptic light modulator devices.An invention side chain liquid crystalline polymer is illustrated by poly[6-(4- |
| 4948532 |
Side chain liquid crystalline polymers exhibiting nonlinear optical properties |
August 14, 1990 |
| This invention provides novel sidechain liquid crystalline polymers which exhibit nonlinear response, and which have utility as a transparent nonlinear optical component in optical light switch and light modulator devices.An invention sidechain liquid crystalline polymer is illustrated b |
| 4944896 |
Side chain liquid crystalline polymers exhibiting nonlinear optical response |
July 31, 1990 |
| This invention provides novel side chain liquid crystalline polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in electrooptic light modulator devices.An invention side chain liquid crystalline polymer is illustrated by poly[6-(4- |
| 4936645 |
Waveguide electrooptic light modulator with low optical loss |
June 26, 1990 |
| In one embodiment this invention provides a thin film waveguide electrooptic light modulator which consists of (1) a laminated assembly of a waveguiding thin film of an organic polymer which exhibits second order nonlinear optical response, and upper and lower organic polymer blend c |
| 4933112 |
Side chain liquid crystalline polymers exhibiting nonlinear optical properties |
June 12, 1990 |
| This invention provides novel sidechain liquid crystalline polymers which exhibit nonlinear response, and which have utility as a transparent nonlinear optical component in optical light switch and light modular devices.An invention sidechain liquid crystalline polymer is illustrated by |
| 4932738 |
Polarization-insensitive interferometric waveguide electrooptic modulator |
June 12, 1990 |
| In one embodiment this invention provides a polarization-insensitive interferometric waveguide electrooptic modulator device. In a Mach-Zehnder type of waveguide geometry, one of the divergent optical paths has two sets of electrodes, which apply a horizontal electric field and a vertica |
| 4915491 |
Side chain liquid crystalline acrylic copolymers exhibiting nonlinear optical response |
April 10, 1990 |
| This invention provides novel acrylic copolymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and light modulator devices.An invention side chain liquid crystalline polyvinyl polymer is illustrated by poly([6- |
| 4906407 |
Azomethine compositions having nonlinear optical properties |
March 6, 1990 |
| In one embodiment this invention provides a novel class of azomethine compounds which exhibit nonlinear optical response, such as 4-(4-dimethylaminobenzylideneamino)-4'-nitrostilbene: ##STR1## |
| 4892682 |
Azomethine compositions having nonlinear optical properties |
January 9, 1990 |
| In one embodiment this invention provides a novel class of azomethine compounds which exhibit nonlinear optical response, such as 4-(4-dimethylaminobenzylideneamino)-4'- nitrostilbene: ##STR1## |
| 4868250 |
Polysiloxane polymers exhibiting nonlinear optical response |
September 19, 1989 |
| This invention provides novel polysiloxane polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in electrooptic light modulator devices.An invention side chain liquid crystalline polysiloxane polymer is illustrated by the structure: |
| 4867538 |
Organic nonlinear optical media |
September 19, 1989 |
| 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 |
| 4865430 |
Acrylic copolymers exhibiting nonlinear optical response |
September 12, 1989 |
| This invention provides novel isotropic acrylic copolymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and light modulator devices.An invention isotropic acrylic copolymer is illustrated by the following stru |
| 4855376 |
Side chain liquid crystalline polymers exhibiting nonlinear optical properties |
August 8, 1989 |
| This invention provides novel sidechain liquid crystalline polymers which exhibit nonlinear response, and which have utility as a transparent nonlinear optical component in optical light switch and light modulator devices.An invention sidechain liquid crystalline polymer is illustrated b |
| 4835235 |
Polyvinyl polymers exhibiting nonlinear optical response |
May 30, 1989 |
| This invention provides novel polyvinyl polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in electrooptic light modulator devices.An invention side chain liquid crystalline polyvinyl polymer is illustrated by poly[6-(4-nitrobiphe |
| 4810338 |
Side chain liquid crystalline polymers exhibiting nonlinear optical response |
March 7, 1989 |
| This invention provides novel side chain liquid crystalline polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in electrooptic light modulator devices.An invention side chain liquid crystalline polymer is illustrated by poly[6-(4- |
| 4808332 |
Acrylic copolymers exhibiting nonlinear optical response |
February 28, 1989 |
| This invention provides novel isotropic acrylic copolymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and light modulator devices.An invention isotropic acrylic copolymer is illustrated by the following stru |
| 4801670 |
Acrylic copolymers exhibiting nonlinear optical response |
January 31, 1989 |
| This invention provides novel isotropic acrylic copolymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in optical light switch and light modulator devices.An invention isotropic acrylic copolymer is illustrated by the following stru |
| 4796976 |
Side chain liquid crystalline polymeric media exhibiting third order nonlinear optical response |
January 10, 1989 |
| 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 corre |
| 4762912 |
Process for producing polymeric media exhibiting third order nonlinear optical response |
August 9, 1988 |
| 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 corre |
| 4694066 |
Polyoxyalkylene polymers exhibiting nonlinear optical response |
September 15, 1987 |
| This invention provides novel polyoxyalkylene polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in electrooptic light modulator devices.An invention side chain liquid crystalline polyoxyalkylene polymer is illustrated by the stru |
