Abstract: The present invention relates to a novel polyimide copolymer, a method of preparing the polyimide copolymer, a liquid crystal aligning layer including the polyimide copolymer, a method of producing the liquid crystal aligning layer, and a liquid crystal display including the liquid crystal aligning layer. The liquid crystal aligning layer that includes the polyimide copolymer according to the present invention is advantageous in that when ultraviolet rays are radiated on movable chains of the polyamic acid copolymer to perform alignment before a polyimide copolymer is imidized and heat treatment is then performed to conduct imidization, thermal stability is excellent, residual images are not formed, and alignment of liquid crystals is excellent.

Abstract: The present invention is based on the discovery that certain electron poor olefins combined with nucleophiles and a base catalyst are useful as adhesive compositions for the electronic packaging industry. In particular, the adhesive formulations set forth herein are useful as low temperature curing formulations with high adhesion to a variety of substrates. Invention formulations typically cure at about 80° C. and have a potlife of about 24 hours. The formulations cure by the well-known Michael addition reaction.

Abstract: Crosslinked polymeric materials are described that contain pendant amine capture groups. The amine capture groups include N-sulfonyldicarboximide groups that can react with amine-containing materials by a ring opening reaction. Reaction mixtures used to prepare the crosslinked polymeric materials, articles containing the crosslinked polymeric materials, methods of making articles, and methods of immobilizing an amine-containing material are also described.

Abstract: Disclosed are a maleimide-?-alkylstyrene-based, heat-resistant bulk tetrapolymer and a preparation process thereof. More specifically, disclosed are a bulk tetrapolymer, comprising 5-60 wt % of an N-substituted maleimide monomer, 10-70 wt % of an ?-alkylstyrene monomer, 5-50 wt % of an unsaturated nitrile monomer and 3-50 wt % of an aromatic vinyl monomer, as well as a continuous bulk polymerization process for preparing the same. The disclosed bulk tetrapolymer has a weight-average molecular weight (Mw) of 70,000-300,000 and a glass transition temperature of 150-200° C., shows excellent high-temperature thermal stability and heat resistance and a remarkably low melt viscosity, and thus is excellent not only in processability, but also in productivity, processability, moldability and blendability, when it is blended with other resins. Also, the continuous bulk polymerization process is equipped with a devolatilizer and enables the bulk tetrapolymer to be produced at low cost and high efficiency.

Abstract: A liquid crystal thermoset (LCT) monomer or oligomer having both ends capped with maleimide having at least one methyl group, represented by Formula 1: wherein R1 and R2 are each independently CH3 or H, and at least one of R1 and R2 is a methyl group, and Ar1 is a divalent organic group containing one or more structural units selected from the group consisting of ester, amide, ester amide, ester imide and ether imide units, and Ar1 has a molecular weight not greater than 5,000.

Abstract: An adhesive composition is disclosed which includes a polymer prepared by copolymerizing a monomer containing a polymerizable group, the polymer including a low-molecular-weight component having a molecular weight equivalent to 1% or less of the weight-average molecular weight of the polymer, the low-molecular-weight component is contained in a range of not less than 0 weight % to less than 0.3 weight % of the total weight of the polymer. This allows provision of an adhesive composition having great adhesive strength in a high-temperature environment, especially at temperatures from 140° C. to 200° C., as well as high heat resistance and favorable crack resistance.

Abstract: The present invention relates to a transparent resin composition which comprises (a) a (meth)acrylate based unit comprising one or more (meth)acrylate based derivatives; (b) an aromatic based unit having a chain having the hydroxy group containing portion and an aromatic moiety and (c) a styrene-based unit comprising one or more styrene-based derivatives, and an optical film that is formed by using the same.

Abstract: An adhesive composition of the present invention includes a polymer as a main component. The polymer is produced by copolymerization of a monomer composition which includes chain-structured alkyl (meth)acrylate and a monomer containing a maleimide group. This makes it possible to provide an adhesive composition used for forming an adhesive layer in which adhesive strength is kept in a high temperature environment. That is, it becomes possible to provide an adhesive composition that allows forming an adhesive layer which has high adhesive strength in a high temperature environment (particularly at 200° C. to 250° C.).

Abstract: Disclosed is a photosensitive resin composition comprising (A) a polyimide resin, (B) a photo-acid generator, and (C) a crosslinking agent having an alkoxyalkylated amino group.

Abstract: Crosslinked polymeric materials are described that contain pendant amine capture groups. The amine capture groups include N-sulfonyldicarboximide groups that can react with amine-containing materials by a ring opening reaction. Reaction mixtures used to prepare the crosslinked polymeric materials, articles containing the crosslinked polymeric materials, methods of making articles, and methods of immobilizing an amine-containing material are also described.

Abstract: UV-absorbing polymers and copolymers suitable for Composition into sunscreens for the protection of human skin. The UV-absorbing chromophoric monomers chosen are simple and easily synthesized. With the correct choice of chromophoric monomer or mixture of monomers, protection against UV-A radiation or against both UV-A and UV-B radiation can be achieved. With the correct choice of comonomer, copolymers produced as aqueous latex emulsions or as Polyethylene Glycol solutions can also be achieved.

Abstract: Crosslinked polymeric materials are described that contain pendant amine capture groups. The amine capture groups include N-sulfonyldicarboximide groups that can react with amine-containing materials by a ring opening reaction. Reaction mixtures used to prepare the crosslinked polymeric materials, articles containing the crosslinked polymeric materials, methods of making articles, and methods of immobilizing an amine-containing material are also described.

Abstract: The present invention generally relates to anaerobically curable compositions of: (a) a cyanate ester compound having the structure of formula I: R1O—C?N)m??(I) ?wherein m is from 2 to 5 and R1 is an aromatic nucleus-containing residue; (b) a (meth)acrylate monomer; and (c) an anaerobic cure inducing composition comprising peroxide and saccharin, wherein said composition is free of added metallic catalyst.

Abstract: A photoresist polymer comprising a fluorine component, a photoresist composition containing the photoresist polymer and an organic solvent to reduce surface tension, and a method for manufacturing a semiconductor device using the same by forming a photoresist film uniformly on the whole surface of an underlying layer pattern to allow a subsequent ion-implanting process to be performed stably.

Abstract: A polymer for immersion lithography comprising a repeating unit represented by Formula 1 and a photoresist composition containing the same. A photoresist film formed by the photoresist composition of the invention is highly resistant to dissolution, a photoacid generator in an aqueous solution for immersion lithography, thereby preventing contamination of an exposure lens and deformation of the photoresist pattern by exposure.

Abstract: A novel hybrid polymer has a structure in which a polyolefin segment and a polar polymer segment are connected not via a bonding group containing a heteroatom. A method of the invention produces the hybrid polymer with industrial advantages. The hybrid polymer includes a polyolefin segment (A) and a polar polymer segment (B), the polar polymer segment being obtained by radical polymerization of a radically polymerizable monomer.

Abstract: A photosensitive polymer which can form a fine circuit pattern by exacting with extreme UV and deep UV, and can improve a line width stability of a pattern by significantly reducing line edge roughness after developing, and a photoresist composition including the same are disclosed. The photosensitive polymer for extreme UV and deep UV includes a repeating unit represented by the following Formula 1, in Formula 1, R1 and R1? are independently a hydrogen atom, methyl group, or trifluoromethyl group, and R2 is wherein Ra and Rb are independently alkyl group of 1 to 10 carbon atoms, aryl group of 6 to 10 carbon atoms, or arylalkyl group of 7 to 12 carbon atoms, and can be connected together to form ring, and a and b are mol % of each repeating unit with respect to the total repeating unit constituting the photosensitive polymer, and are 1 to 99 mol % and 1 to 99 mol % respectively.

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: A display panel has a resin substrate and a printed layer formed on at least a part of the resin substrate through inkjet printing. The printed layer is formed from cured products of UV-curable inks each containing UV-curable monomers which are polymerized and cured by UV irradiation, and the printed layer has at least two such cured products having different pencil hardness values.

Abstract: An adhesion promoting composition includes a polymer, such as an acrylic copolymer, having acetoacetoxy functionality and adhesion-promoting functionality and a metal alkoxide, chelate, and/or alkoxide chelate. The composition is applied in a first layer over a metal substrate or a coated substrate, then coated with a desired refinish coating composition.

Abstract: The present invention provides polymeric delivery systems including an aromatic allyllic acyl group. Methods of making the polymeric delivery systems and methods of treating mammals using the same are also disclosed.

Abstract: A curable resin composition containing a specific vinyl compound obtained by vinylation of a terminal of a bifunctional phenylene ether oligomer having a polyphenylene ether structure in a molecule and a specific bismaleimide compound having at least two maleimide groups in a molecule, a curable film comprising the above composition, a cured product obtained by curing the above composition, and a film obtained by curing the curable film. The above resin composition is excellent in curability even in the presence of oxygen, is curable at a low temperature and is capable of giving a cured product having a low dielectric constant, a low dielectric loss tangent, high heat resistance, excellent mechanical properties, excellent chemical resistance and excellent flame retardancy.

Abstract: The present invention provides a star polymer which comprises a central core and three or more branches bonded to the central core, and has a weight average molecular weight of from 1,000 to 100,000, wherein at least one of the branches containing at least one repeating unit selected from the group consisting of the following repeating units (1), (2), (3), (4) and (9); and a process for producing the star polymer. The present invention also provides a chemically amplified positive resist composition comprising the star polymer and an acid generator.

Abstract: The invention is based on the discovery that certain polyester compounds bearing free-radical curable moieties are useful as b-stageable adhesives for the microelectonic packaging industry.

Abstract: Solubilizers prepared by polymerizing: (i) at least one first monomer of the general formula (I): wherein R1 and R2 each independently represent H or CH3, R3 represents a C6-C10-aryl or C7-C12-aralkyl which may be unsubstituted or substituted with one or more C1-C9-alkyl and/or C1-C5-alkoxy substituents, and n represents an integer from 0 to 100; and (ii) at least one second monomer selected from the group consisting of N-vinylamides, N-vinyllactams, N-vinylimines, N-vinylamines having 2 to 15 carbon atoms, and mixtures thereof; and methods of solubilizing active ingredients by combining them with such a solubilizer.

Abstract: Soluble polymers and methods for the preparation thereof, wherein the polymers of the present invention have pendant acylsulfonamide amine-reactive groups that can be used for the capture of amine containing materials.

Abstract: Described are polymers and cement admixtures which reduce drop in fluidity with time. Said admixture comprises at least one polymer of the present invention and at least one polymer A. The polymer of the present invention comprises side chains of which at least 10 weight-% can be cleaved in alkaline medium. The polymer of the present invention is an acrylic polymer which comprises side chains connected to the backbone by ester linkages. These side chains may be alkyl, hydroxy alkyl, cycloalkyl or polyoxyalkylene groups. Polymer A is a cement dispersing agent. The combination of polymer A with the polymer of the present invention in a weight ratio of 0.1:10-10:1, and preferably 1:10-10:1 reduces the drop in fluidity with time of cementitious compositions.

Abstract: N-halamine compounds which contain hindered amine and amide functional groups. Compounds include wherein X, X?, and X? independently are H, Cl, or Br, wherein no more than two of X, X?, and X? are H and wherein R, R?, and R? are independently alkyl groups containing 1 to 4 carbon atoms or hydrogen, and X and X? are independently H, Cl, or Br. Compositions comprising the compounds are also described. The compounds and/or compositions can be used, for example, for the purpose of constructing biocidal coatings and materials. The biocidal activity can inactivate pathogenic microorganisms such as bacteria, fungi, and yeasts, as well as, virus particles.

Abstract: Cross-linked ampholytic polymers that may be used as rheological modifiers, and/or absorbent gelling materials are disclosed. The polymers may be storage stable in aqueous compositions comprising soluble salt, and/or an oxidizer, such as hydrogen peroxide.

Abstract: The invention provides derivatives of poly(styrene-co-allylalcohol). These materials are useful as thermosetting monomers that can be incorporated into adhesive compositions. In some embodiments, the adhesive compositions are useful in the microelectronic packaging industry.

Abstract: The present invention relates to interlayer dielectric materials and pre-applied die attach adhesives, more specifically pre-applied die attach adhesives (such as wafer and other substrate-applied die attach adhesives), methods of applying the interlayer dielectric materials onto substrates to prepare low K dielectric semiconductor chips, methods of applying the pre-applied die attach adhesives onto wafer and other substrate surfaces, and assemblies prepared therewith for connecting microelectronic circuitry.

Abstract: In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. The resulting thermosets are stable to elevated temperatures, are highly flexible, have low moisture uptake and are consequently useful in a variety of applications, e.g., in adhesive applications since they display good adhesion to both the substrate and the device attached thereto.

Abstract: Polymers may be made from zwitterionic monomers having controlled architectures and molecular weights, using living polymerisations such as group or atom transfer radical polymerisation. For instance polymers may be formed by atom transfer radical polymerisation using a copper chloride catalyst, a ligand which is water soluble, and a water soluble tertiary alkyl halide initiator to form homopolymers having controlled polydispersities of less than 1.5 and block copolymers with other hydrophilic or hydrophobic monomers. One suitable zwitterionic monomer is 2-methacryloyloxy-2?-trimethylammoniumethyl phosphate inner salt. The block copolymers may spontaneously form micelles, believed to have zwitterionic, for instance phosphorylcholine, groups at the external surface, which may be useful as drug delivery systems with improved biocompatibility.

Abstract: Shape memory polymers prepared by copolymerizing two monomers, which each separately produce polymers characterized by different glass transition temperatures in the presence of a multi-functional monomer whereby the copolymer formed is cross-linked during the polymerization to form a thermoset network. The transition temperature of the final polymers is adjusted by the ratio of the monomers selected, to from about 150° C. to about 270° C., while the degree of crosslinking controls the rubbery modulus plateau. The shape memory polymers can be processed as castable formulations in the form of bulk articles, coatings and films. The invention also relates to the articles of manufacture thereof and methods of the preparation and use thereof.

Abstract: The present invention generally relates to curable compositions free of metallic catalysts. The inventive compositions are capable of curing when applied to a metal substrate. The inventive compositions provide improved thermal performance and enhanced cure strength on oily metal surfaces.

Abstract: A crosslinkable second-order nonlinear optical polymer having one or more polarizable chromophore moieties, one or more diene moieties, and one or more dienophile or dienophile precursor moieties, wherein the diene and dienophile moieties are reactive to form 4+2 cycloaddition products; a crosslinked second-order nonlinear optical polymer having aligned, polarizable chromophore moieties and one or more 4+2 cycloaddition moieties, wherein the 4+2 cycloaddition moieties are reversibly, thermally reactive to provide diene moieties and dienophile moieties; lattices and devices that include the crosslinkable second-order nonlinear optical polymer; lattices and devices that include the crosslinked second-order nonlinear optical polymer; and methods for making the crosslinked second-order nonlinear optical polymer.

Abstract: Disclosed are a light absorbent agent polymer for organic anti-reflective coating which can prevent diffused light reflection of the bottom film layer or substrate and reduce standing waves caused by variation of thickness of the photoresist itself, thereby, increasing uniformity of the photoresist pattern, in a process for forming ultra-fine patterns of photoresist for photolithography by using 193 nm ArF among processes for manufacturing semiconductor device, and its preparation method. Also, the present invention discloses an organic anti-reflective coating composition comprising the light absorbent agent polymer for the organic anti-reflective coating and a pattern formation process using the coating composition.

Abstract: An organic-inorganic composite material is formed by polycondensating a metal alkoxide through hydrolysis until the unreacted metal alkoxide is reduced to 3 vol. % or less, and mixing it with an organic polymer. The composite material has a light transmittance of at least 90% per 10 ?m material thickness for light of 600 to 1000 nm. The metal element content of the composite material is preferably 0.1 to 46 wt. %, more preferably 5 to 37 wt. %. By laminating layers of such organic-inorganic composite materials having respective different compositions, the resulting laminate has a concentration gradient wherein the metal element content increases or decreases monotonously, or increases and decreases in succession, from one side to the other side of the laminate. The resulting refractive index varies opposite the metal element content. The material can be used for an optical waveguide or a light transmission structure.

Abstract: The disclosure is directed to a partially hydrogenated ring-opened polynorbornene and a process for making the same. The ring-opened polynorbornene is low in birefringence, high in wavelength dependency about birefringence and excellent in transparency and heat resistance.

Abstract: The invention is directed to polymerizable vinyl compounds having halogenated aromatic groups and to a method of synthesizing such compounds. In particular, the invention is directed to polymerizable aromatic vinyl compounds wherein, except for the vinylic hydrogen atoms, aromatic C—H bonds are replaced by C—X bonds, where X is a halogen or other selected substituent having a de minimus number, if any, of C—H bonds; for example, without limitation, highly fluorinated fluoroalkanes. In addition, the compounds of the invention have a de minimus number, if any, of N—H and O—H bonds.

Abstract: A crosslinkable second-order nonlinear optical polymer having one or more polarizable chromophore moieties, one or more diene moieties, and one or more dienophile or dienophile precursor moieties, wherein the diene and dienophile moieties are reactive to form 4+2 cycloaddition products; a crosslinked second-order nonlinear optical polymer having aligned, polarizable chromophore moieties and one or more 4+2 cycloaddition moieties, wherein the 4+2 cycloaddition moieties are reversibly, thermally reactive to provide diene moieties and dienophile moieties; lattices and devices that include the crosslinkable second-order nonlinear optical polymer; lattices and devices that include the crosslinked second-order nonlinear optical polymer; and methods for making the crosslinked second-order nonlinear optical polymer.

Abstract: There are provided a polyalkenyl ether type polyurethane, which is excellent in flexibility, aor the like, and which has in the molecule, a structural unit represented by formula (XXX): (wherein n represents an integer of 2 to 1000, R1 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl, or substituted or unsubstituted aralkyl, and R2, R3 and R4, which are the same or different, each represent a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aryl or substituted or unsubstituted aralkyl, and R1s, R2s, R3s, and R4s, when they are each present two or more in number, may be respectively the same or different), and the like.

Abstract: This invention relates to copolymer compositions having pigment like properties, comprising a fluorescent or non-fluorescent dye attached to a polymer chain by a spacer having a chain length of C3 or longer. The invention also provides for new mono- and difunctional dye monomers comprising a polymerizable group attached to a dye moiety by a spacer of a chain length of C3 or longer. The polymer pigments provide excellent properties, especially high temperature stability and easy applicability as colorant in different standard polymers.

Abstract: AnB block copolymers, wherein n is at least two, that include A blocks with poly(vinyl pyrrolidone) units and B blocks with urethane groups, urea groups, imide groups, amide groups, ether groups, ester groups, or combinations thereof, as well as medical devices and methods.

Abstract: Alkali soluble copolymers, imageable elements useful as lithographic printing plate precursors that contain the alkali soluble copolymers, and methods for forming images using the imageable elements are disclosed.

Abstract: A norbornene ring-opened polymer which in the molecule has repeating units represented by the formula (1): wherein R1 represents Q, R2 represents Q or C(?O)R5, R3 represents Q or C(?O)R6, and R4 represents Q or X—C(?O)R7 (wherein Q represents hydrogen, a C1-10 hydrocarbon group, etc.; R5, R6 and R7 each represents hydroxyl, C1-10 alkoxyl, etc., provided that R6 and R7 may be bonded to each other to constitute oxygen, NH, etc.; X represents methylene, etc., provided that when R2 is Q, then R3 is C(?O)R6 and R4 is X—C(?O)R7 and that when R4 is Q, then R2 is C(?O)R5, R3 is C(?O)R6, and the configuration of R2 and R3 is trans, and m is 0 or 1), the polymer having a weight-average molecular weight as determined by gel permeation chromatography of 1,000 to 1,000,000. Also provided is a hydrogenation product of the norbornene ring-opened polymer. The norbornene ring-opened polymer and the hydrogenation product are excellent in heat resistance, electrical properties, etc.

Abstract: The present invention relates to bottom antireflective coating compositions and polymers useful in making such compositions.

Abstract: A stable free radical process for preparing a polymer having acid anhydride functionality includes heating a mixture comprised of a stable free radical agent, maleic anhydride or derivative thereof, and at least one polymerizable electron donor monomer to initiate exothermic reaction and during exotherm of the reaction, adding additional amounts of stable free radical agent to control the reaction temperature. The mixture may also include a stable free radical initiator. In the mixture, the maleic anhydride or derivative thereof preferably comprises from about 10% to about 70%, molar basis, of a total amount of the maleic anhydride or derivative thereof and the at least one polymerizable electron donor monomer. Typically, the heating is to a temperature of from about 100° C. to about 160° C., and the rate of addition of the additional amounts of stable free radical agent is adjusted to control the reaction temperature to be about 160° C. or less.

Abstract: A transparent heat-resistant resin optical materials having excellent heat resistance and dynamic characteristics, having negative birefringence and exhibiting a high refractive index and a high Abbe number, especially optical compensating members such as films, sheets and retardation films for LCD display element. The transparent heat-resistant resin optical material is made of a copolymer containing a specific olefin residue unit and a specific N-phenyl-substituted maleimide residue unit and having a weight average molecular weight, as reduced into standard polystyrene, of from 5×103 to 5×106, the transparent heat-resistant resin optical material exhibiting negative birefringence; and a retardation film having a relationship of three-dimensional refractive indexes of nz?ny>nx, nz>ny?nx, or nz>nx?ny.

Abstract: The invention is a curable cyclobutarene based polymer comprising acid functional pendant groups. The cured polymer displays excellent qualities of toughness, adhesion, dielectric constant, and low stress. The preferred system is soluble in an aqueous base and can be used to generate patterned films with excellent resolution without the need to handle organic developer solvents.