Abstract: This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.

Abstract: A method for casting a styrenic fluoropolymer film on a substrate includes preparing a polymer solution by dissolving the fluoropolymer in a solvent or solvent blend whose Hansen solubility parameters (HSPs. MPa1/2) satisfy the following relations: |SPb?SPp|<5, |SPb?SPs|<4, |SPb(H)?SPp(H)|<7, and 2<|SPb(H)?SPs(H)|<10 wherein SPb, SPp, SPs, are the total Hansen solubility parameters of solvent/solvent blend, fluoropolymer, and substrate, respectively; SPb(H), SPp(H), and, SPs(H) are the hydrogen-bond Hansen solubility parameters of solvent/solvent blend, fluoropolymer, and substrate, respectively; wherein the fluoropolymer comprises a moiety of: wherein R1, R2, and R3 are each independently hydrogen atoms, alkyl groups, substituted alkyl groups, or halogens, wherein at least one of R1, R2, and R3 is a fluorine atom, and wherein R is each independently a substituent on the styrenic ring, n is an integer from 0 to 5 representing the number of the substituents on the styrenic ring.

Abstract: Optical compensation films (positive C-plate) with anisotropic subunits (OASUs) that are aromatic rings substituted with birefringence enhancing substituents (BES) and have high positive birefringence throughout the wavelength range 400 nm<?<800 nm are provided. The optical compensation films may be processed by solution casting to yield a polymer film with high birefringence without the need for stretching, photopolymerization, or other processes. Such optical compensation films are suitable for use as a positive C-plate in LCDs, particularly IPS-LCDs.

Abstract: A method for controlling positive birefringence in an optical compensation film (positive C-plate) having high positive birefringence throughout the wavelength range 400 nm<?<800 nm is provided. The method includes selecting polymers with optically anisotropic subunits (OASUs) that exhibit the buttressing effect, wherein the OASUs may be disks, mesogens or aromatic rings substituted with birefringence enhancing substituents. The method further includes processing the polymer by solution casting to yield a polymer film with high birefringence without the need for stretching, photopolymerization, or other processes. These optical compensation films may be used in LCDs, particularly IPS-LCDs.

Abstract: This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.

Abstract: Waterborne coating compositions are disclosed that include a latex emulsion polymer, and, as a coalescent, a diester of hydroxypivalyl hydroxypivalate. The coating compositions of the invention have a reduced VOC content and provide satisfactory coalescing activity.

Abstract: This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.

Abstract: Waterborne coating compositions are disclosed that include a latex emulsion polymer, and, as a coalescent, a levulinic acid ester of a monohydric aliphatic alcohol having from 10 to 20 carbon atoms. The coating compositions of the invention have a reduced VOC content, and provide improved coalescing activity compared with esters of polyols such as glycerol.

Abstract: Optical compensation films (positive C-plate) with disk anisotropic subunits (OASUs) that have high positive birefringence throughout the wavelength range 400 nm<?<800 nm are provided. The optical compensation films may be processed by solution casting to yield a polymer film with high birefringence without the need for stretching, photopolymerization, or other processes. Such optical compensation films are suitable for use as a positive C-plate in LCDs, particularly IPS-LCDs.

Abstract: Disclosed is a low VOC coating additive employing a water-dispersible polymer, a water insoluble plasticizer, cyclohexanedimethanol, and optionally an amphiphilic component. The additive can be added to a coating to improve at least one performance characteristics of the coating, such as, wet-edge time, open time, scrub resistance, wet adhesion, and water resistance.

Abstract: This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.

Abstract: Optical compensation films (positive C-plate) with disk anisotropic subunits (OASUs) that have high positive birefringence throughout the wavelength range 400 nm<?<800 nm are provided. The optical compensation films may be processed by solution casting to yield a polymer film with high birefringence without the need for stretching, photopolymerization, or other processes. Such optical compensation films are suitable for use as a positive C-plate in LCDs, particularly IPS-LCDs.

Abstract: An optical compensation film composition is disclosed herein having a polymer film and a substrate, wherein the polymer film has a positive birefringence greater than 0.005 throughout the wavelength range of 400 nm<?<800 nm, the film having been cast from a polymer solution comprising a solvent and a polymer having a moiety of wherein R1, R2, and R3 are each independently hydrogen atoms, alkyl groups, substituted alkyl groups, or halogens, wherein at least one of R1, R2, and R3 is a fluorine atom, and wherein R is hydrogen or a substituent on the styrenic ring.

Abstract: Disclosed are filter elements constructed of a filter support material coated with an acetoacetate-functional polymeric composition that reacts with and removes aldehydes, especially formaldehyde, present in gases such as air. Also disclosed are methods for the removal of aldehydes utilizing the coated filter support materials.

Abstract: This invention relates to novel compositions comprising regioselectively substituted cellulose esters. One aspect of the invention relates to processes for preparing regioselectively substituted cellulose esters from cellulose dissolved in ionic liquids. Another aspect of the invention relates to the utility of regioselectively substituted cellulose esters in applications such as protective and compensation films for liquid crystalline displays.

Abstract: Disclosed is a low VOC coating additive employing a water-dispersible polymer, a water insoluble plasticizer, cyclohexanedimethanol, and optionally an amphiphilic component. The additive can be added to a coating to improve at least one performance characteristics of the coating, such as, wet-edge time, open time, scrub resistance, wet adhesion, and water resistance.

Abstract: Some embodiments include compositions and/or methods related to optical compensation films. More particularly, some embodiments can include brominated polystyrene compositions, and/or methods for their preparation, suitable for forming optical compensation films. In some embodiments, suitable brominated polystyrene compositions, and/or methods for their preparation, can include aromatic rings having one or more acyl moieties.

Abstract: The present invention provides uniaxially stretched polymer films that have a refractive index profile suitable for use as negative A-plates or biaxial birefringent plates in a liquid crystal display (LCD) device. These wave plates can be used to compensate for the phase retardations existing in various modes of LCDs including TN (twisted nematic), VA (vertically aligned), IPS (in-plane switching), and OCB (optically compensated bend), and therefore improving the viewing quality of the displays.

Abstract: The present invention relates to modified alkyd polymers and compositions thereof, in which the alkyd polymers are modified with polyol-containing latex compositions and/or diol-containing latex compositions. The invention further relates to compositions prepared from such modified alkyd compositions.

Abstract: A method for controlling positive birefringence in an optical compensation film (positive C-plate) having high positive birefringence throughout the wavelength range 400 nm<?<800 nm is provided. The method includes selecting polymers with optically anisotropic subunits (OASUs) that exhibit the buttressing effect, wherein the OASUs may be disks, mesogens or aromatic rings substituted with birefringence enhancing substituents. The method further includes processing the polymer by solution casting to yield a polymer film with high birefringence without the need for stretching, photopolymerization, or other processes. These optical compensation films may be used in LCDs, particularly IPS-LCDs.