Abstract: The present invention relates compositions containing acetoacetylated polyvinyl polymers obtained from polyvinyl polymers, such as polyvinyl butyrals. These coating compositions are especially suitable for use as wash primers in automotive OEM and refinish coating applications.

Abstract: Herein are disclosed modified vinyl alcohol polymers (mPVOH), wherein the mPVOH can comprise structure VII: and at least one structure comprising structure IX: or structure X: wherein —R can independently comprise an unsubstituted hydrocarbon moiety comprising at least one alpha hydrogen or a substituted hydrocarbon moiety comprising at least one alpha hydrogen. The mPVOH can be useful in oxygen barrier applications, such as a forming an oxygen barrier layer of a packaging article. Also disclosed are methods of forming mPVOH and methods of using mPVOH to make packaging articles with a superior barrier to entry by atmospheric oxygen.

Abstract: The present invention relates to telechelic polymers having crosslinkable end groups of the formula and methods for preparing the same wherein n is an integer; is an alkadienyl group; Y is an alkyl group; and Z is crosslinkable end group. In general, the inventive synthesis involves reacting a functionalized chain transfer agent having crosslinkable ends with a cycloalkene in the presence of a ruthenium or osmium catalyst of the formula wherein: M is ruthenium or osmium; X and X1 are independently any anionic ligand; L and L1 are any neutral electron donor ligand; R and R1 are each hydrogen or a substituted or unsubstituted substituent wherein the substituent is selected from the group consisting of C1–C20 alkyl, C2–C20 alkenyl, C2–C20 alkynyl, aryl, C1–C20 carboxylate, C1–C20 alkoxy, C1–C20 alkenyloxy, C2–C20 alkynyloxy, aryloxy, C2–C20 alkoxycarbonyl, C1–C20 alkylthio, C1–C20 alkylsulfonyl and C1–C20 alkylsulfinyl.

Abstract: The present invention provides a radiation-curable prepolymer. The radiation-curable prepolymer of the invention is prepared by reacting an isocyanate-capped polyurethane with an ethylenically unsaturated amine or an ethylenically unsaturated monohydroxy compound or a mixture thereof, wherein the isocyanate-capped polyurethane is a copolymerization production of: (a) at least one polyalkylene glycol; (b) at least one branching agent having at least three hydroxy groups; and (c) at least one di- or polyisocyanate. The radiation-curable prepolymer of the invention can find use in economically producing contact lenses which have durable, highly elastic soft contact lenses with desired physical properties. In addition, the present invention provides method for making a radiation-curable prepolymer of the invention and for making a medical device, preferably an ophthalmic device, more preferably a contact lens.

Abstract: There are provided a vinyl compound which is excellent in heat resistance and electric characteristics and excellent in reactivity by introducing a vinyl group into a terminal of a bifunctional polyphenylene ether oligomer, and a cured product thereof which has a high glass transition temperature, has a low dielectric constant and a low dielectric loss tangent and has the excellent properties of polyphenylene ether.

Abstract: The invention provides novel polymers and photoresist compositions that comprise the polymers as a resin component. Polymers of the invention contain two distinct groups which can undergo a deblocking reaction in the presence of photogenerated acid, wherein one of the deblocking moieties is an acetal group. The second photoacid-labile group is suitably an ester, particularly as provided by polymerization of an alkyl acrylate group, such as t-butylmethacrylate.

Abstract: A radiation curable adhesive composition which includes: a) an ?,?-olefinically unsaturated ether monomer component consisting of one or more compounds having the formula: R[O—CH?CHR1]n??(I) where R is an n-valent carbon-linked organic group R1 is H or a monovalent carbon-linked organic group and n has a value of 1 or more, b) an elastomeric polymer having a tensile strength at break of greater than 1500 psi (10342 kPa), and an elongation at break of greater than 100%, and c) a cationic photoinitiator.

Abstract: The present invention relates compositions containing acetoacetylated polyvinyl polymers obtained from polyvinyl polymers, such as polyvinyl butyrals. These coating compositions are especially suitable for use as wash primers in automotive OEM and refinish coating applications.

Abstract: A composition that can be used as a catalyst is disclosed. The composition comprises, or is produced by combining, a titanium compound, a glycol, a phosphorus compound, and optionally water. Also disclosed is a process that can be used for producing a polyester. The process comprises contacting, in the presence of a catalyst composition, a carbonyl compound and an alcohol under a condition suitable for esterification, transesterification, or polymerization. The catalyst composition comprises, or is produced by combining, a titanium compound, a glycol, a phosphorus compound, and optionally water.

Abstract: The present invention relates to telechelic polymers having crosslinkable end groups of the formula and methods for preparing the same wherein n is an integer; is an alkadienyl group; Y is an alkyl group; and Z is crosslinkable end group. In general, the inventive synthesis involves reacting a functionalized chain transfer agent having crosslinkable ends with a cycloalkene in the presence of a ruthenium or osmium catalyst of the formula wherein: M is ruthenium or osmium; X and X1 are independently any anionic ligand; L and L1 are any neutral electron donor ligand; R and R1 are each hydrogen or a substituted or unsubstituted substituent wherein the substituent is selected from the group consisting of C1-C20 alkyl, C2-C20 alkenyl, C1-C20 alkynyl, aryl, C1-C20 carboxylate, C1-C20 alkoxy, C2-C20 alkenyloxy, C2-C20 alkynyloxy, aryloxy, C2-C20 alkoxycarbonyl, C1-C20 alkylthio, C1-C20 alkylsulfonyl and C1-C20 alkylsulfinyl.

Abstract: A polymer produced by polymerizing via water-in-oil emulsion polymerization one or more water soluble monomers with one or more polyalkoxylated monomers wherein said one or more polyalkoxylated monomers contains at least 25 alkylene oxide units and wherein said product demonstrates thermothickening properties, its method of manufacture and use thereof is disclosed.

Abstract: There are disclosed a (meth)acrylic copolymer and its production process, wherein the (meth)acrylic copolymer has the good chelating ability and dispersibility and is excellent both in the calcium-ion-binding ability and the gelation resistance in combination, and further, the deterioration of these various performances is inhibited even in the water system of high salt concentration. The (meth)acrylic copolymer comprises a constitutional unit (a) derivative from a specific (meth)acrylic monomer (A) and a constitutional unit (b1) derivative from a specific (meth)allyl-etheric monomer (B1) and has a phosphorus atom in the main chain; with the (meth)acrylic copolymer being characterized by having: a mutual ratio between the constitutional unit (a) and the constitutional unit (b1) in the specific range; a low molecular weight; and a content of phosphorus, as bonded to the copolymer, in the predetermined range; and further a gelation resistance of not more than 0.

Abstract: A novel polymer is obtained by copolymerizing a (meth)acrylic acid derivative with a vinyl ether compound, an allyl ether compound and an oxygen-containing alicyclic olefin compound. A resist composition comprising the polymer as a base resin is sensitive to high-energy radiation, has excellent sensitivity, resolution, etching resistance, and minimized swell and lends itself to micropatterning with electron beams or deep-UV.

Abstract: The present invention relates to novel synthetic methods for PEG-maleimide derivatives, specifically, novel synthetic methods for PEG-maleimide. The final products thereof are useful as a pegylation reagent in the field of bioengineering and the medicinal field or the preparation of medical appliances and by conjugating with certain moieties or specific domains of polysaccharides and biological proteins such as antibodies as a bio-compatible or bio-degradable polymer.

Abstract: The present invention relates to novel synthetic methods for PEG-maleimide derivatives, specifically, novel synthetic methods for PEG-maleimide. The final products thereof are useful as a pegylation reagent in the field of bioengineering and the medicinal field or the preparation of medical appliances and by conjugating with certain moieties or specific domains of polysaccharides and biological proteins such as antibodies as a bio-compatible or bio-degradable polymer.

Abstract: The present invention provides: an acrylic acid (salt) polymer, which has a low molecular weight and a narrow molecular weight distribution and can display excellent dispersibility, or which has a high molecular weight and a high water solubility; a production process that enables easy production of this polymer; and an acrylic acid (salt) polymer composition comprising this polymer. The acrylic acid (salt) polymer is an acrylic acid (salt) polymer of which not less than 1 weight % of the entirety is accounted for by an acrylic acid (salt) polymer having a specific terminal structure. In addition, the production process for an acrylic acid (salt) polymer comprises the step of carrying out polymerization of a monomer component including an acrylic acid (salt), wherein an acrylic acid (salt) having a furfural content of 200 to 400 weight ppm is used as at least a portion of the acrylic acid (salt) in an amount of not smaller than 10 weight % of the entire monomer component.

Abstract: The invention is a composition comprising: 40 to 95 parts by weight of one or several monomers (I) of formula (a) wherein: R1 and R2 represent H or CH; A represents a divalent radical of formula (b) or (c) wherein m1 and m2 represent each an integer ranging between 2 and 6; and 5 to 50 parts by weight of a monomer (II) comprising at least a urethane unit and at least two (meth)acrylate functions. The invention is useful for making optical and ophthalmic articles.

Abstract: A radical polymerizable compound comprising a structure represented by the following formula (I), (II) or (III): wherein the various groups and “n” in the formulas are defined and certain of the defined groups contain a hetero atom and are connected through the hetero atom.

Abstract: Copolymers based on unsaturated monocarboxylic or dicarboxylic acid derivatives, oxyalkylene glycol alkenyl ethers, vinylic polyalkylene glycol, polysiloxane or ester compounds and the use thereof as additives for aqueous suspensions based on mineral or bituminous binders are described. The copolymers give aqueous suspensions of building materials excellent processing properties even in very small amounts, without delaying strength developments. In addition, when the copolymers of the invention are used, a drastic decrease in the water/binder ratio still leads to highly fluid building materials without segregation of individual constituents from the building material mixture occurring.

Abstract: A hydrophobe-containing alkali soluble or swellable copolymer thickener comprising an emulsion polymerization product of (A) an ethylenically unsaturated copolymerizable surfactant monomer having a cloud point of from about 65° C. to about 95° C., wherein the surfactant monomer has the formula M(EO)x(BO)zOR1 wherein M is a residue selected from the group consisting of an ethylenically unsaturated carboxylic acid, and an ethylenically unsaturated dicarboxylic acid, EO is an ethylene oxide unit; BO is a butylene oxide unit; x is from 10 to 45; z is from 5 to 35; provided that x+z is from 20 to 45; and R1 is selected from the group consisting of alkyl, alkylene, cycloalkyl, cycloalkylene, and arylalkyl group wherein the alkyl group has 1 to 4 carbon atoms; (B) an &agr;,&bgr;-ethylenically unsaturated monocarboxylic acid monomer; and (C) a nonionic &agr;,&bgr;-ethylenically unsaturated monomer.

Abstract: The invention concerns a monomer of general formula A—(Q—S)p wherein: A=an aromatic or heteroaromatic ring; Q=a carbonaceous or siliceous divalent radical, respectively corresponding to general formulae: (CR1R2)n wherein: R1, R2=H, alkyl, alkenyl comprising between 1 to 4 carbon atoms and n ranges between 4 and 24; and [O—Si(R1R2)]n wherein R1, R2=H, alkyl, alkenyl comprising between 1 and 4 carbon atoms and n ranges between 3 and 24; S=a solvating segment consisting of at least an aliphatic chain comprising at least a polar heteroatom. 1≦p≦6. The invention also concerns the polymer (homopolymer or copolymer) incorporating said monomer, and their use in organic electroluminescent devices.

Abstract: Water-soluble polymers having a water-soluble backbone and side units having in water a lower critical solution temperature, LCST, the polymers being obtainable by free-radical precipitation polymerization of water-soluble monomers and of macromonomers comprising a unit with an LCST whose heat-induced demixing temperature in aqueous solution is from 5 to 40° C. for a concentration by mass in water of 1% of the said unit. Also described is a process for preparing these polymers by free-radical precipitation polymerization, and aqueous compositions containing these polymers and the use of these polymers and compositions, especially in cosmetics, for the cleansing and/or making up and/or care and/or antisun protection of keratin materials.

Abstract: A transparent and low refractive index optical coating for use in light transmitting electronic devices is disclosed. The optical coating comprises a hydrogel having a refractive index of less than 1.40.

Abstract: The invention is a composition comprising: 40 to 95 parts by weight of one or several monomers (I) of formula (a) wherein: R1 and R2 represent H or CH; A represents a divalent radical of formula (b) or (c) wherein m1 and m2 represent each an integer ranging between 2 and 6; and 5 to 50 parts by weight of a monomer (II) comprising at least a urethane unit and at least two (meth)acrylate functions. The invention is useful for making optical and ophthalmic articles.

Abstract: This invention relates to a non-leachable, oil based carrier derived from the anhydrous free radical solution polymerization of a water insoluble acrylate and/or acrylamide monomer in an oil medium for use in long lasting skin lubricating formulations.

Abstract: An allyl type crosslinking agent for use in production of a super water-absorbent polymer comprising a polymerizable compound having a carbon-carbon double bond or a salt thereof, comprising a linear hydroxypolyallyl ether having at least one hydroxyl groups and at least two allyl groups obtained by allyletherification of hydroxyl groups in a linear polyol compound selected from the group consisting of erythritol, xylitol and sorbitol, is provided. This allyl type crosslinking agent is highly soluble in an aqueous solvent, and can give an excellent super water-absorbent polymer, which cannot be obtained in the prior arts, having high levels of both of water absorptivity under atmospheric pressure and water absorptivity under pressurized conditions are obtained.

Abstract: Provided are flow-and-leveling agents for powder coatings which provide the coated surfaces with a flow-and-leveling property by blending into powder coatings taking a serious view of finishing and which improves coating defects such as ruptures and craters to contribute to a rise in the appearance in powder coating. The above flow-and-leveling agents are (meth)acrylic acid ester base copolymers containing a trimethylsilyl group in a proportion of 2 to 65% by weight and having a number average molecular weight of 1000 to 60000.

Abstract: A polymer produced by polymerizing via water-in-oil emulsion polymerization one or more water soluble monomers with one or more polyalkoxylated monomers wherein said one or more polyalkoxylated monomers contains at least 25 alkylene oxide units and wherein said product demonstrates thermothickening properties, its method of manufacture and use thereof is disclosed.

Abstract: A coating composition includes an organosilicon compound and an adhesion improver made of at least one compound selected from acetylene compounds of the general formulas (I-a) to (I-d): wherein Ra and Rc each independently represents a hydrogen atom or an optionally branched alkyl group having from 1 to 5 carbon atoms; Rb and Rd each independently represents an optionally branched alkyl group having from 2 to 8 carbon atoms; Re and Rf each independently represents an optionally branched alkyl group having from 1 to 3 carbon atoms; m and n each indicate an integer of 1 or more; and m′ and n′ each indicate an integer of 0 or more.

Abstract: This polymeric, acrylamide-free water retention agent, intended inter alia for drilling fluids in the high-temperature range and based on vinylic sulfonic acids, may be composed of the two principal components A and B, component A being selected from the group a) consisting of vinylic substituted sulfonic acid of the series 2-acrylamido-2-methylpropanesulfonic acid (AMPS), vinylsulfonic acid, methallylsulfonic acid or styrenesulfonic acid, salts thereof with a valence of at least 1, or mixtures thereof, or b) a divalent salt of homopolymers or copolymers of a vinylic substituted sulfonic acid of the series 2-acrylamido-2-methylpropanesulfonic acid (AMPS), vinylsulfonic acid, methallylsulfonic acid or styrenesultonic acid or mixtures thereof. In the case where component A comprises group a), the polymer further comprises component B) composed of a) from 4.99 to 60 mol % of an unsaturated, polybasic, cis-positioned carboxylic acid monomer and b) from 0.

Abstract: Polyisobutylene (PIB) functionalized with terminal reactive unsaturation is disclosed. Carbocationically polymerized monohalogen-terminated PIB is dehydrohalogenated in a hydrocarbon solvent using an alkoxide of the formula RO-M wherein R is alkyl of at least 5 carbon atoms and M is alkali metal. The PIB obtained has terminal unsaturation which is 100% in the reactive ‘exo’ form which can be converted to succinic anhydride groups (PIB-SA) by the ene reaction with maleic anhydride. The PIB-SA is reactive with amine functional dendrimers to obtain a star-branched polymer having a dendrimer core and PIB branches joined by succinimide linkages. Blends of the star-branched polymer with polypropylene have improved energy absorption properties and controllable moisture/oxygen permeabilities useful in films.

Abstract: Provided are a method, upon radical copolymerization of a vinyl-containing porphyrin compound and a radically polymerizable monomer, thereby obtaining a porphyrin-nucleus introduced polymer, of controlling reactivity of the porphyrin-nucleus introduced polymer with a metal by selecting the radically polymerizable monomer; and a method for measuring a trace metal by measuring a change in absorbance caused by a complex forming reaction between a porphyrin-nucleus introduced polymer, which has been obtained by radical copolymerization of a vinyl-containing porphyrin compound and a radically polymerizable monomer, and a heavy metal ion, the radically polymerizable monomer being selected so as to heighten reaction selectivity of the porphyrin-nucleus introduced polymer to a metal to be measured.

Abstract: Fluorochemical polymers for use in providing stain-release properties to a substrate material are disclosed. The present invention provides for polymeric fluorochemical polymers that include perfluoroaliphatic, hydrophilic, cationogenic, and either N-hydroxyalkylacrylamide and/or diacrylate monomers.

Abstract: A copolymer comprising monomers copolymerized in the following percentages by weight: (a) from about 40% to about 75% of a monomer of formula I: Rf—CH2CH2—OC(O)—C(R)═CH2  I (b) from about 15% to about 55% of a monomer of formula II: R2—OC(O)—C(R)═CH2  II (c) from 1.5% to about 5% of a monomer of the formula III: HO—CH2CH2—OC(O)—C(R)═CH2  III (d) from 1.5% to about 5% of a monomer of the formula IV: H—(OCH2CH2)m—O—C(O)—C(R)═CH2  IV (e) from 1% to about 3% of a monomer of the formula V: HO—CH2—NH—C(O)—C(R)═CH2  V (f) from 0% to about to about 9.

Abstract: The present invention relates to telechelic polymers having crosslinkable end groups of the formula and methods for preparing the same wherein n is an integer; is an alkadienyl group; Y is an alkyl group; and Z is crosslinkable end group. In general, the inventive synthesis involves reacting a functionalized chain transfer agent having crosslinkable ends with a cycloalkene in the presence of a ruthenium or osmium catalyst of the formula wherein: M is ruthenium or osmium; X and X1 are independently any anionic ligand; L and L1 are any neutral electron donor ligand; R and R1 are each hydrogen or a substituted or unsubstituted substituent wherein the substituent is selected from the group consisting of C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkynyl, aryl, C1-C20 carboxylate, C1-C20 alkoxy, C2-C20 alkenyloxy, C2-C20 alkynyloxy, aryloxy, C2-C20 alkoxycarbonyl, C1-C20 alkylthio, C1-C20 alkylsulfonyl and C1-C20 alkylsulfinyl.

Abstract: The invention relates to branched polymers derived by free-radical polymerisation from a mixture of monomers with 50 to 93 wt. % of at least one ethylenically unsaturated monomer, 2 to 25 wt. % of at least one ethylenically unsaturated macromonomer with a molecular weight of 1,000 to 20,000 and 5 to 25 wt. % of at least one polymerisable imidazole derivative, wherein the components together make up 100 wt. %, the resulting polymer possesses a molecular weight of 15,000 to 100,000 and is optionally present in the form of a salt. The present invention also relates to the production of these polymers and their use as dispersing agents in liquid media or for the pre-coating of solids to be dispersed.

Abstract: The invention provides compositions for producing lenses by casting. The compositions are useful in producing ophthalmic lens by casting of a surface or layer onto a preform.

Abstract: The present invention, for example, provides a production process for a water-soluble polymer which is suitable for a component of a scale inhibitor which controls the formation of scale even in joint use with anticorrosives such as zinc-based or condensed phosphoric acid-based ones, and has so excellent gelation resistance as to be difficult to precipitate, and contains no or little phosphorus.

Abstract: A crosslinked micellar gel composition is comprised of a polymer formed by a reaction between (a) ionic surfactant units which include ionic surfactant molecules, each of which includes a counterion which has a first polymerizable functional group, (b) crosslinking agent molecules, each of which includes two second polymerizable functional groups, and (c) a reaction initiator selected from the group consisting of reaction initiator molecules and ultraviolet light radiation, wherein the reaction initiator initiates a reaction between a plurality of the ionic surfactant units with each other and a plurality of the ionic surfactant units with the second polymerizable functional groups. The polymer compositions formed from the reactions are crosslinked micellar gels which include a network structure of rodlike micelles forming a soft gel material which retains features and utility of rodlike micelles and benefits from the structural stability of a crosslinked polymer matrix.

Abstract: Provided are porphyrin-nucleus introduced polymers obtained by radical copolymerization of a radically polymerizable monomer with a porphyrin compound represented by formula (1) or (2): where R represents a hydrogen atom or a C1-6 alkyl group. Also provided are a trace metal measuring reagent and a trace metal removing agent, each containing the porphyrin-nucleus introduced polymer. The porphyrin-nucleus introduced polymer can be obtained as a compound having desired properties or reactivity by making use of easily available porphyrin compounds. The polymer is useful as a reagent for measuring or an agent for removing heavy metals.

Abstract: The present invention relates to aqueous ink jet inks containing a copolymer dispersant comprising at least one polymerized monomer having the general formula: CH2═C(R3)C(O)OXa(C2H4O)b—(C3H6O)c—R4 where a=0 or 1; when a=1, X is an akyl, aryl, or alkaryl diradical connecting group of 1-9 carbon atoms; b and c are independently selected from the range of 0-100 provided that b and c are not simultaneously 0; R3 is H or CH3; and R4 is preferably PO3H2.

Abstract: A polymerizable composition is described, which composition comprises a polyol(allyl carbonate) monomer, e.g., diethylene glycol bis(allyl carbonate) monomer, and an additive represented by the general formula, R2—O&Parenopenst;R3O&Parenclosest;x&Parenopenst;R4O&Parenclosest;y&Parenopenst;R5O&Parenclosest;zR6 wherein R2 and R6 are each selected independently from hydrogen, C1-C20 linear or branched alkyl, cycloalkyl having from 5 to 7 carbon atoms in the cyclic ring, aryl, C2-C20 linear or branched alkanoyl, cycloalkanoyl having from 5 to 7 carbon atoms in the cyclic ring and aroyl, R2 and R6 each being free of radically polymerizable ethylenically unsaturated groups; R3O and R5O are the same or different; R4O is different than each of R3O and R5O; R3O, R4O and R5O are each independently a divalent residue of an epoxide; x and z are each independently a number from 0 to 200, provided that the sum of x and z is greater than zero; and y is a number from 3 to 200.

Abstract: A dendritic or hyperbranched polymer having a weight average molecular weight of 500-10,000,000 is prepared by polymerizing a hydroxystyrene derivative, adding a branching monomer midway in the polymerization step to introduce branch chains, and repeating the polymerizing and branching steps. The polymer is advantageously used as the base resin of resist material because the size of the polymer can be reduced while maintaining strength.

Abstract: A liquid epoxy-functional acrylic resin is disclosed. The resin comprises 10-90 wt % of recurring units of an epoxy-functional allylic monomer and 10-90 wt % of an acrylic monomer that has a homopolymer Tg less that 0° C. The epoxy-functional allylic monomer has the general structure: R is hydrogen, a C1-C10 aryl, or a C6-C12 aryl group; A is an oxyalkylene group; and n, which is an average number of oxyalkylene groups, is within the range of 0 to about 15.

Abstract: One embodiment of the present invention is a method for synthesizing superabsorbent polyacrylate polymers comprising the steps of providing an acrylate monomer, a multifunctional monomer, and free radical initiator in the absence of a solvent; mixing the acrylate monomer, multifunctional monomer, and free radical initiator to create a solvent free solution; and subjecting the solvent free solution to radiation to create a cross-linked polymer. The product created by this method is also a part of the present invention.

Abstract: The present invention relates to aqueous dispersions preparable by polymerization of an olefinically unsaturated, water-insoluble compound in the presence of a water-soluble allyl or vinyl ether of the formula 1 in which b is 0 or 1 n is 0 or 1 k is an integer from 1 to 20, X is O or N[(A—O)m—R] A is C2-C4-alkylene m is an integer from 5 to 900, and R is H or C1-C4-alkyl, and in which A is not exclusively C3- or C4-alkylene, by mixing the olefinically unsaturated water-insoluble compound with the water-soluble allyl and vinyl ether in water, and triggering the polymerization by a free-radical initiator.

Abstract: The present invention provides a method for producing a cement dispersant having high percentage in water reduction rate and appropriate air-entraining property. This method for producing a polycarboxylic acid for a cement dispersant is characterized in that alkylene oxide is added at a specific temperature range.

Abstract: Processes for making trioxane, polyoxymethylene and polyoxymethylene copolymers from formaldehyde, made by the dehydrogenation of methanol in the presence of a catalytic active species set free from a sodium compound, at a temperature in the range of 300° C. to 1000° C., wherein a carrier gas stream which has a temperature above the dehydrogenation temperature is fed to the reactor.

Abstract: Water-soluble or water-dispersible polymers which contain carboxyl groups, possibly in latent form, and side chains of the formula I,

Abstract: The invention relates to poly(phenylene vinylene) polymers substituted with dendritic sidechains to enhance main-chain separation in the solid state. The polymers are synthesized by the Heck polymerization and have a weight-average molecular weight of 20,000 to 60,000 Daltons. The polymers are self-ordering in the solid state and have thermotropic liquid crystalline phases. The polymers show enhanced photoconductivity, better charge transport capability and improved polarized light emission.