Abstract: A radiation-sensitive resin composition which has high transparency to radiation, excelling in basic properties as a resist such as sensitivity, resolution, and pattern shape, and, in particular, exhibiting high resolution performance, excellent DOF and LER, and high resistance to a liquid medium used in liquid immersion lithography is provided. Also provided are a polymer which can be used in the composition, a novel compound useful for synthesizing the polymer, and a method of producing the composition.

Abstract: A composition of the formulae MZAORSnR1F1mOAZ1M1, wherein O and S have their normal meaning of oxygen and sulfur, n is at least 2 and not more than 8, F1 is of the formula —OAORSnR1—, m is at least 1, Z and Z1 are the same or different and are oxy or amino, M and M1 are the same or different and are hydrogen or an organic substituent, R and R1 are the same or different and are organic divalent radicals, each having from 2 to 20 carbon atoms, and A is the residue of a dicarboxylic acid of from 2 to 40 carbon atoms.

Abstract: In a process for producing a functionalized polyalkenamer, at least one monomer comprising a monocyclic olefin having at least one pendant alkyl group bonded thereto, wherein the pendant alkyl group has at least two carbon atoms and is substituted with a polar moiety spaced by at least one carbon atom from the monocyclic olefin, is contacted with a polymerization catalyst under conditions effective to effect ring opening polymerization of the monocyclic olefin and produce the functionalized polyalkenamer.

Abstract: To provide a polyalkylene glycol chain-containing thiol polymer which is excellent in various performances, particularly significantly excellent in cement dispersibility, and useful in various applications such as an admixture for cement; a thiol-modified monomer or mixture thereof, which can produce such polymer; production methods of the polymer and the monomer; and a dispersant and an admixture for cement, each including the polymer. The polyalkylene glycol chain-containing thiol polymer is a polyalkylene glycol chain-containing thiol polymer, wherein the polymer comprises a polyalkylene glycol chain and a polymer segment bonded to at least one end of the polyalkylene glycol chain with a sulfur atom-containing group therebetween, the polymer segment includes a constitutional unit derived from an unsaturated monomer component, and the unsaturated monomer component includes an unsaturated carboxylic acid monomer and an unsaturated polyalkylene glycol monomer.

Abstract: A curable resin composition comprising (a) a compound having at least one ethylenically unsaturated group and at least one ion conductive group, (b) a compound having at least two ethylenically unsaturated groups, (c) an organosilicon compound having at least two SiH groups, (d) a platinum group catalyst, and (e) a solvent is dried and cured by heating into a cured film having excellent ionic conduction and serving as electrolyte membrane. The electrolyte membrane and an electrolyte membrane/electrode assembly satisfy fuel cell-related properties including ionic conduction and film strength as well as productivity.

Abstract: Provided is an insulating layer that can improve device characteristics of an electronic device including the insulating layer. The insulating layer contains a polymer insulating substance having repeating units represented by the following formula: wherein Ra represents a direct bond or any linking group, Ar represents a divalent aromatic group optionally having a substituent, and Rb represents a hydrogen atom, a fluorine atom, or a univalent organic group.

Abstract: One-part self-etching, self-priming dental adhesive composition having a pH of at most 2, which comprises (a) a polymerizable acidic phosphoric acid ester monomer (b) one or more polymerizable acidic monomers (c) a polymerizable N-substituted alkylacrylic or acrylic acid amide monomer; (d) optionally an organic and/or inorganic acid; (e) an organic water soluble solvent and/or water; and (f) polymerization initiator, inhibitor and stabilizer.

Abstract: To provide a polyalkylene glycol chain-containing thiol polymer which is excellent in various performances, particularly significantly excellent in cement dispersibility, and useful in various applications such as an admixture for cement; a thiol-modified monomer or a mixture thereof, which can produce such a polymer; production methods of the polymer and the monomer; and a dispersant and an admixture for cement, each including the polymer. The polyalkylene glycol chain-containing thiol polymer of the present invention is a polyalkylene glycol chain-containing thiol polymer, wherein the polymer comprises a polyalkylene glycol chain and a polymer segment bonded to at least one end of the polyalkylene glycol chain with a sulfur atom-containing group therebetween, the polymer segment includes a constitutional unit derived from an unsaturated monomer component, and the unsaturated monomer component includes an unsaturated carboxylic acid monomer and an unsaturated polyalkylene glycol monomer.

Abstract: The present invention provides an amphiphilic block copolymer, a method for manufacturing the same, and a fuel cell membrane using the same. According to preferred embodiments, the amphiphilic block copolymer may contain poly(arylene sulfone ether ketone) (PSEK) as a hydrophobic component and poly(sulfonated styrene-co-acrylonitrile) (PSSAN) as a hydrophilic component. According to other preferred embodiments, polymer electrolyte membrane manufactured using the amphiphilic block copolymer has certain advantages in that the hydrogen ion conductivity is not reduced even at a high temperature of more than 100° C. but is rather increased and the thermal and chemical dimensional stability is excellent.

Abstract: A polyimide precursor composition includes an oligomer or polymer having a substituted or unsubstituted carbonyl group only in a side chain and a diamine compound. A method of manufacturing a polyimide, and a polyimide film, are also disclosed.

Abstract: The invention relates to novel ethylene copolymers comprising 10-60% polyethylenglycol (meth)acrylate monomers and 40-90% substantially cationic monomer. Compositions, in particular cosmetic or pharmaceutical compositions, containing the inventive copolymers and a cosmetic treatment method using said copolymers are also disclosed.

Abstract: Provided are a novel photopolymerizable monomer having at least one unsaturated double bond and epoxide, and a photocurable composition comprising the photopolymerizable monomer and an initiator, which is polymerizable with good efficiency using light and/or heat, provides reduced shrinkage, and has superior mechanical strength including adhesion and transparency.

Abstract: There is provided a novel hyperbranched polymer in which the refractive index is precisely controlled while retaining its hyperbranched structure, and a method for producing the hyperbranched polymer. Further, there is also provided an optically and thermally stable novel hyperbranched polymer in which the desired refractive index is precisely controlled, and a method for producing the hyperbranched polymer. The hyperbranched polymer has, as a branched structure, a repeating unit structure produced from two dithiocarbamate compounds each having a vinyl structure, at the polymerization initiation site having a vinyl structure. A specific example of the hyperbranched polymer can be produced by subjecting to a living radical polymerization N,N-diethyldithiocarbamylmethylstyrene in the presence of N,N-diethyldithiocarbamylethyl methacrylate.

Abstract: A proton-conducting electrolyte membrane containing a porous inorganic substrate, a porous portion of the porous inorganic substrate being filled with a proton-conducting polymer, wherein the proton-conducting polymer is a co-polymer of: (i) a monomer compound having an ethylenically unsaturated bond and a sulphonic acid group in the molecule; and (ii) a silyl compound represented by Formula (1): (R1O)n—Si—R2m??Formula (1) wherein R1 is an alkyl group of 1 to 4 carbon atoms; R2 is an organic group capable of co-polymerizing; m and n each are an integer of 1 to 3, with the proviso that m plus n equals 4; and R2 may be the same or different when m is 2 or 3.

Abstract: The invention relates to a process for free-radically initiated heterophase polymerization, in which the polymerization of ethylenically monomers proceeds in a phase dispersed in the continuous phase, characterized in that one or more additives which are soluble in the continuous phase and insoluble in the disperse phase and stop the polymerization of the ethylenically unsaturated monomers in the continuous phase is/are added before or during the polymerization.

Abstract: The present invention provides a novel polymer having oxocarbon groups which is particularly useful in battery and fuel cell applications.

Abstract: Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising (a) a random copolymer comprising hydrophilic units and hydrophobic units, wherein the random copolymer has at least one thio carbonyl thio fragment of a reversible addition fragmentation chain transfer (“RAFT”) agent are disclosed.

Abstract: The present invention provides a monomer for a polymerisable composition, a polymerisable composition containing the monomers, a polymer formed from the polymerisable composition, and ophthalmic lens blanks and ophthalmic lenses formed from the polymer. The monomer is a compound having the formula (I) or (Ia).

Abstract: There is provided a binder composition for secondary battery electrode, containing (A) a sulfonic acid group-containing polymer, and (B) an organic solvent composed mainly of N-methylpyrrolidone, wherein the proportion of the sulfonic acid group in the polymer (A) is 0.005 to 1.0 mmol/g.

Abstract: The present invention relates to an aqueous composition comprising at least one finely divided filler and at least one water-soluble amphoteric copolymer, a process for the preparation of such a composition and its use as an additive in the production of paper, cardboard and board.

Abstract: A positive resist composition, includes: (A) a resin having a repeating unit represented by formula (A) as defined in the specification, which decomposes under an action of an acid to increase a solubility of the resin (A) in an alkali developer; and a pattern forming method uses the composition.

Abstract: A new, facile, general one-phase method of generating thiol-functionalized transition metal nanoparticles and surfaces modified by (co)polymers synthesized by the RAFT method is described. The method includes the steps of forming a (co)polymer in aqueous solution using the RAFT methodology, forming a colloidal transition metal precursor solution from an appropriate transition metal; adding the metal precursor solution or surface to the (co)polymer solution, adding a reducing agent into the solution to reduce the metal colloid in situ to produce the stabilized nanoparticles or surface, and isolating the stabilized nanoparticles or surface in a manner such that aggregation is minimized. The functionalized surfaces generated using these methods can further undergo planar surface modifications, such as functionalization with a variety of different chemical groups, expanding their utility and application.

Abstract: Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising an ethylenically unsaturated-containing non-amphiphilic macromonomer comprising hydrophilic units or hydrophobic units derived from a living radical polymerization of one or more ethylenically unsaturated hydrophilic monomers or one or more ethylenically unsaturated hydrophobic monomers are disclosed.

Abstract: Provided herein are branched polymers synthesized from: at least one (A1) reactive monomer having a vinyl functional group, or (A2) a hybrid reactive monomer having (a) at least one vinyl functional group and (b) at least one reactive non-vinyl functional group; and at least one: (B1) branching agent having at least two N-vinyl formamide functional groups or (B2) a hybrid branching agent having (a) at least one N-vinyl formamide functional group, and (b) at least one vinyl functional group. The polymers exhibit branching behavior, which in some embodiments lends to lower viscosity, enhanced processability, and/or improved sprayability compared to a corresponding polymer of equal molecular weight synthesized without the second reactive moiety. Formulations with the invention's polymers also are presented.

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: Hybrid copolymers for use as anti-sealant and dispersant. The polymers are useful in compositions used in aqueous systems. The polymers include at least one synthetic monomeric constituent that is chain terminated by a naturally occurring hydroxyl containing moiety. A process for preparing these hybrid copolymers is also provided.

Abstract: A compound represented by formula (I) is disclosed. P1 and P2 represent a polymerizable group; m1 and m2 represent an integer of from 1 to 10, “A” represents a divalent group having a 5- to 18-membered aromatic hydrocarbon ring or a 5- to 18-membered aromatic hetero ring, L3 and L4 represent a C1-10 alkyl group or a C1-10 alkoxy group, k1 and k2 represent an integer of from 0 to 4, X1, X2, X3 and X4 represent —O—, —S—, —NH—, —NR— or —SiR0R00—, n1 and n2 represent 0 or 1, provided that at least one of them is 1; and L1a, L1b, L2a and L2b represent a hydrogen atom, halogen atom, —CN, —NC, —NCO, —NCS, or —OCN, provided that those in which both of X2 and X3 represent —O—, those in which one of X2 and X3 represents —O— and another represents —NH— or —NR— are excluded only when n1 is 1, both of L1a and L1b are hydrogen atoms, n2 is 1, and both of L2a and L2b are hydrogen atoms, or only when n1 is 1, both of L1a and L1b are hydrogen atoms, and n2 is 0.

Abstract: The present invention provides a novel polymer composed of polyarylene in the main chain and having oxocarbon groups which is particularly useful in battery and fuel cell applications.

Abstract: The present invention provides polymers resulting from polymerization of at least one reactive vinyl monomer moiety and a multifunctional N-vinylformamide crosslinking moiety; polymers resulting from polymerization of at least one reactive vinyl monomer moiety and a hybrid N-vinylformamide crosslinking moiety having at least one N-vinylformamide functionality and at least one other reactive vinyl functionality; polymers resulting from polymerization of at least one hybrid reactive N-vinylformamide monomer moiety having one N-vinylformamide functionality and at least one other reactive non-vinyl functionality and a multifunctional N-vinylformamide crosslinking moiety; and polymers resulting from polymerization of at least one hybrid reactive N-vinylformamide monomer moiety having one N-vinylformamide functionality and at least one other reactive non-vinyl functionality and a hybrid N-vinylformamide crosslinking moiety having at least one N-vinylformamide functionality and at least one other reactive vinyl func

Abstract: Randomly branched polymers, such as homopolymers, copolymers, block copolymers and functionalized polymers are disclosed which may be formed by polymerizing a polymerizable monomer, such as styrene with a dithioester chain transfer agent which includes a polymerizable group. The reaction may be performed in one pot. The randomly branched polymer can have high molecular weight and broad molecular weight distribution.

Abstract: To provide a copolymer for semiconductor lithography employed for forming a resist film as well as thin films such as an anti-reflection film, a gap-filling film, a top coating film, etc. which are formed on or under a resist film, these films being employed in semiconductor lithography, wherein the copolymer has excellent solubility in a solution of a thin film-forming composition and prevents generation of microparticles (e.g., microgel) and pattern defects, and to provide a method for producing the copolymer reliably on an industrial scale.

Abstract: Disclosed are 1,4-polybutadiene functionalized with an aromatic organosulfur compound, providing improved processability due to decreased Mooney viscosity and providing improved feel on hitting and flying performance due to decreased compression and increased restitution when used to prepare a golf ball core, and a composition for the preparation of a golf ball core including the same.

Abstract: An improved polymerization and processing method allows the production of special nitrile rubbers which are characterized by a specific cation content which leads to an excellent storage stability and particularly good vulcanization rate and moreover results in vulcanized materials that have advantageous properties.

Abstract: An improved polymerization and process method allows the production of special nitrile rubbers which are characterized by a specific anion content and an excellent storage stability and allow a particularly good vulcanization rate and moreover result in vulcanized materials that have advantageous properties, especially with regard to the contact with metal components of molded parts based on said vulcanized materials.

Abstract: The present invention relates to high refractive index monomers according to formula (I) and (co)polymers comprising such high refractive index monomers. The 5 (co)polymers are highly suitable for the manufacture of optical articles, in particular flexible optical articles, more in particular intraocular lenses.

Abstract: An improved polymerization and processing method allows the production of special nitrile rubbers which are characterized by a specific cation content which leads to an excellent storage stability and particularly good vulcanization rate and moreover results in vulcanized materials that have advantageous properties, especially with regard to the contact with water or water-containing media of molded parts based on said vulcanized materials.

Abstract: A salt represented by the formula (I—Pb): wherein Xpb represents a single bond or —O—, Rpb represents a single bond etc., Ypb represents a polymerizable group, Zpb represents an organic group, Xpc represents a single bond or a C1-C4 alkylene group, and Rpc represents a C1-C10 aliphatic hydrocarbon group which can have one or more substituents etc.

Abstract: A photosensitive resin realizes formation of a pattern having a good shape, without introducing poor compatibility between an acid generator and a photoresist primary-component polymer having an acid-dissociable group, and a photosensitive composition containing the photosensitive resin. The photosensitive resin includes a repeating unit represented by formula (1): (wherein R1 represents a C2-C9 linear or branched divalent hydrocarbon group; each of R2 to R5 represents a hydrogen atom or a C1-C3 linear or branched hydrocarbon group; each of R6 and R7 represents an organic group, wherein R6 and R7 may together form a divalent organic group; and X?represents an anion); at least one of a repeating unit represented by formula (2): (wherein R8 represents a C2-C9 linear or branched hydrocarbon group) and a repeating unit represented by formula (3): a repeating unit represented by formula (4): optionally, a repeating unit represented by formula (5).

Abstract: Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising (a) a random copolymer comprising hydrophilic units and hydrophobic units, wherein the random copolymer has at least one thio carbonyl thio fragment of a reversible addition fragmentation chain transfer (“RAFT”) agent are disclosed.

Abstract: Biomedical devices such as contact lenses formed from a polymerization product of a mixture comprising (a) a hydrophilic polymer comprising one or more hydrophilic units and one or more thio carbonyl thio fragments of a reversible addition fragmentation chain transfer (“RAFT”) agent; and (b) one or more biomedical device-forming monomers are disclosed.

Abstract: Hybrid copolymers for use as anti-sealant and dispersant. The polymers are useful in compositions used in aqueous systems. The polymers include at least one synthetic monomeric constituent that is chain terminated by a naturally occurring hydroxyl containing moiety. A process for preparing these hybrid copolymers is also provided.

Abstract: Copolymers which are obtained by free radical copolymerization of a vinylic poly(alkylene oxide) compound (A) with an ethylenically unsaturated monomer compound (B), and the use thereof as dispersants for aqueous solid suspensions, in particular hydraulic binders based on cement, lime, gypsum and anhydrite, are described. With very good water reduction power, the copolymers according to the invention scarcely retard the hardening of the concrete and ensure long processability of the concrete.

Abstract: The present invention provides a new monomer and methods of using the monomer to fabricate robust polymer surface coatings with controlled thicknesses between 1 and 5 nanometers. The coatings are composed of a new material containing polymerized monomers of 4-vinylbenzenepropanethiol. The polymer surface coating may be applied to metal and silicon. The method includes exposing a metal substrate to a solution of the monomer in hexanes in order to deposit a monolayer of the monomer onto the metal surface. The substrate is then irradiated with ultraviolet radiation in order to graft a thin polymer coating onto the surface. The procedure can be repeated in order to control the thickness of the coating between about 1 nm and 5 nm. Alternatively, thermally initiated polymerization or deposition of partially oligomerized monomers onto the surface provides nanothin coatings with identical performance.

Abstract: A copolymer comprising (i) an olefin unit selected from the group consisting of an ethylene unit and an ?-olefin unit having 3 to 20 carbon atoms, and (ii) a unit of a compound represented by the formula, CH2?CH—(R1)m—SO3X; and a process for producing said copolymer comprising the step of contacting (i) the above-mentioned olefin, and (ii) the above-mentioned compound with a polymerization catalyst, wherein m is a number of 0 or 1, R1 is an aliphatic hydrocarbylene group having 1 to 18 carbon atoms, and X is a mono-valent cationic species.

Abstract: The invention relates to polymeric resin blends containing polyelectrolyte resins blended into a polymer or copolymer matrix. Specifically, the polyelectrolyte resins are (co)polymers without hydrolyzable groups. The matrix polymer is a tough, and highly chemical-resistant (co)polymer, preferably a fluoropolymer. The polymeric resin blend is useful for forming films, and especially films useful for MEAs for use in fuel cells.

Abstract: The present invention relates to a water-based ink for ink-jet printing which not only satisfies a high optical density but also exhibits an excellent high lighter-fastness; and a water dispersion used for the water-based ink. There are provided a water dispersion for ink-jet printing containing (A) a pigment and (B) water-insoluble polymer particles produced by polymerizing an ethylenically unsaturated monomer containing 25 to 85% by weight of an aromatic group-containing monomer in the presence of a reactive surfactant; and a water-based ink containing the water dispersion.

Abstract: Disclosed herein is a branched (meth)acrylate copolymer prepared by polymerizing a monomer mixture comprising (A) about 20 to about 99.999% by weight of a (meth)acrylate monomer having a refractive index higher than methyl methacrylate; (B) about 0 to about 79.999% by weight of a mono-functional unsaturated monomer; and (C) about 0.001 to about 10% by weight of a crosslinking monomer. The copolymer has a refractive index of about 1.495 to about 1.590.

Abstract: An active energy beam-curable composition for optical material is provided that comprises (A) a di(meth)acrylate represented by the following formula (1) and (B) a mono(meth)acrylate represented by the following formula (2) and/or a mono(meth)acrylate represented by the following formula (3), wherein the active energy beam-curable composition contains 10 to 90 wt % of the component (A) and 90 to 10 wt % the component (B) on the basis of the total weight of the components (A) and (B). In the formula, R1 and R3 independently represents a hydrogen atom or a methyl group, R2 and R4 independently represents a hydrogen atom, a methyl group or an ethyl group, R5 to R8 independently represents a hydrogen atom, a methyl group or a bromine atom, and l and m independently represents an integer of 1 to 6, R9 represents a hydrogen atom or a methyl group, R10 represents a hydrogen atom or a methyl group.

Abstract: UV curable compositions, polymeric photoinitiators and precursors therefor are described.

Abstract: UV curable compositions, polymeric photoinitiators and precursors therefor are described.