Abstract: A method is described for the manufacture of polyesters of aromatic dicarboxylic acids with aliphatic and/or cycloaliphatic dials, in which an aromatic dicarboxylic acid in the presence of a monocarboxylic acid or a mixture of a monocarboxylic acid present in a saturated solution with water or another suitable solvent is converted with an aliphatic or cycloaliphatic dial to a dicarboxylic acid alkanediolestercarboxylate and/or its oligomers, which are polycondensed in further process steps to the polyester.

Abstract: Dibenzodiazocine polymers, methods for producing dibenzodiazocine polymers, products formed from dibenzodiazocine polymers, and uses for such dibenzodiazocine polymers are provided.

Abstract: Provided is an aromatic polymer phosphonic acid derivative in which a phosphonic acid derivative group is directly bound to aromatic ring. Said aromatic polymer phosphonic acid derivative can be produced by brominating a specific aromatic polymer compound with a brominating agent, then acting thereon trialkyl phosphite in the presence of a nickel halide catalyst to give a phosphonic acid di-ester, and further, by hydrolyzing the di-ester. The aromatic polymer phosphonic acid derivative is excellent in radical resistance and used for a solid polymer type fuel cell.

Abstract: A solution of a polyketone as a copolymer of carbon monoxide and one or more olefins, wherein 90 wt % or more of said copolymer comprises carbon monoxide units and olefin units, and a solvent is an aqueous solution of at least one member selected from the group consisting of zinc salts, calcium salts, thiocyanates and iron salts.

Abstract: There are disclosed, a polyether ketone having a primary particle size of 50 ?m or less; and a method of producing a polyether ketone by a desalting polycondensation, which contains a step of conducting a polymerization reaction under a condition of deposition of the polymer. The polyether ketone obtained by the present invention has small particle size, high molecular weight and sufficiently small content of impurities such as alkali metal components.

Abstract: A polyphosphate polymer which includes both (i) ionic or ionizable moieties; and (ii) fluorine-containing moieties. Such polymers may be used as matrices for pharmaceuticals, as multilayer coatings for fuel cell membranes, as dopant for electrically conductive polymers, or as multilayer coatings for biomedical devices.

Abstract: A poly(arylene ether) polymer includes polymer repeat units of the following structure: —(O—Ar1—O—Ar2)m—(O—Ar3—O—Ar4)n— where Ar1, Ar2, Ar3, and Ar4 are identical or different aryl radicals, m is 0.05 to 0.95, n is 1-m, and at least one of the aryl radicals is grafted to at least one hydroxyalkyl group, such as 2-undecanol. The polymer is especially useful in electrically conductive adhesives.

Abstract: Poly(arylene ether) polymers are provided having polymer repeat units of the following structure: wherein Ar1, Ar2, Ar3, and Ar4 are identical or different aryl radicals, m is 0 to 1, n is 1-m, and at least one of G1, G2, G3, G4, G5, G6, G7 and G8 is a hydroxyalkyl furan group. Thin films of the polymer and methods of making the polymer are also provided.

Abstract: A method for producing a polymerized hydrocarbon includes a step of a dehalogenation of a halogenated hydrocarbon with a magnesium-diene complex. Low-molecular-weight compounds, such as dimers or trimers of hydrocarbon units, oligomers of hydrocarbon units, or polymers of hydrocarbon units can be produced by this method while generating significantly less odor.

Abstract: The present invention is directed to sulfonimide-containing polymers, specifically sulfonimide-containing poly(arylene ether)s and sulfonimide-containing poly(arylene ether sulfone)s, and processes for making the sulfonimide-containing poly(arylene ether)s and sulfonimide-containing poly(arylene ether sulfone)s, for use conductive membranes and fuel cells.

Abstract: Specific methods of inducing high nucleation rates in thermoplastics, such as polyolefins, and particularly, though not necessarily, polypropylenes, through the introduction of two different compounds that are substantially soluble within the target molten thermoplastic resin (such as, as one non-limiting example, an added compound including at least one acid group and an added organic salt) are provided. Such introduced components react to form a nucleating agent in situ within such a target molten thermoplastic resin which is then allowed to cool. Preferably, one compound is an acid, preferably bicyclic (i.e., two cyclic systems sharing at least three carbon atoms) or monocycloaliphatic (i.e., a single, saturated ring system) in nature, such as, without limitation, bicyclo[2.2.

Abstract: Polyether polymers providing a backbone substituted at intervals with electron stabilizing groups containing electron withdrawing groups are described. The polymers capture electrons and are electronegative. The polymers act to solvate alkali metals so that electrons are withdrawn from the alkali metal into the polymer. The polymer compositions are conductive under certain conditions and are magnetic. The compositions are useful in electronic applications.

Abstract: The present invention is generally directed to a process for separating and recovering post-consumer polyester from various contaminant materials. The invention can be utilized to separate post-consumer polyester from various contaminants including glass, dirt, paper, metal, glue, dye, and the like. The disclosed process includes several stages including a preparation stage, in which a portion of the contaminants can be removed from the polyester, as well as a reaction stage, in which a portion of the polyester can be saponified and contaminants can be physically separated from the polyester. In addition, during the reaction stage, certain hard-to-separate contaminants, such as aluminum and polyvinyl chloride, can react to a form more easily separable from the polyester.

Abstract: A cyanate ester system is disclosed. An aryl ether oligomer may be made from a dihydroxyaromatic compound and a dihaloaromatic compound in the presence of a base. The oligomer is then reacted with a cyanide compound in the presence of a base to form the cyanate ester shown below. The cyanate ester may then be cross-linked to a thermoset having triazine ring cross-links.

Abstract: Low-k organosilicate dielectric material can be exposed to a series of reagents, including a halogenation reagent, an alkylation reagent, and a termination reagent, in order to reverse degradation of dielectric properties caused by previous processing steps.

Abstract: A resin for use in manufacturing wet friction materials which contributes to enhancing durability of manufactured wet friction materials, a manufacturing method thereof, and a wet friction material having excellent durability are provided. The resin for use in manufacturing wet friction materials can be obtained by reacting phenols with aldehydes in the presence of at least one basic catalyst, which contains a water-soluble phenolic resin as a main component. Further, the manufacturing method of the resin for wet friction materials includes a step of reacting phenols with aldehydes in the presence of at least one basic catalyst to obtain a water-soluble phenolic resin having a predetermined water percentage. Furthermore, the wet friction material is manufactured by impregnating a base material with the resin for wet friction materials.

Abstract: Disclosed is a process for preparing branched polyarylene ether polymers by (A) providing a reaction mixture comprising (i) a polyfunctional phenol compound of the formula Ar(OH)x wherein x?3 and wherein Ar is an aryl moiety or an alkylaryl moiety, provided that when Ar is an alkylaryl moiety at least three of the —OH groups are bonded to an aryl portion thereof, (ii) one or more linear polymers of the formula wherein m is 0 or 1, A and B are as defined herein, and n is an integer representing the number of repeat monomer units, and (iii) a carbonate base; and (B) heating the reaction mixture and removing generated water from the reaction mixture, thereby effecting a polymerization reaction.

Abstract: A process for preparing a fluorinated poly(arylene ether) comprising the repeating unit: wherein n provides a molecular weight up to about 30,000 to 100,000, X represents one of following groups: none, ketone, sulfone, sulfide, ether, hexafluoroisopropylidene, ??-perfluoroalkylene, oxadiazole, and Y is 4,4?-(hexafluoroisopropylidene)-diphenyl, 4,4?-isopropylidene diphenyl, 3,3?-isopropylidene diphenyl, phenyl, or chlorinated phenol which process comprises reacting a bis(pentafluorophenyl) compound and a bisphenol or hydroquinone in the presence of a dehydrating agent and a polar aprotic solvent is disclosed. Polymers resulting from the process show good promise as new passive optic polymer waveguide materials.

Abstract: An improved elastomeric material is described comprising an essentially noncross-linkable amorphous copolymer of tetrafluoroethylene (TFE) and perfluoromethyl vinyl ether (PMVE) which is both a thermoplastic and exhibits exceptional mechanical properties. This material is particularly suitable for use in ultra-clean environments, and particularly for use in an implantable device, since it does not contain contaminants that previous thermoset TFE/PMVE copolymers have required. Among the improved properties of the present invention are excellent biocompatibility, high matrix tensile strength, high clarity, high abrasion resistance, high purity, adequate elasticity, and ease of processing due to the thermoplastic, and noncross-linkable structure of the copolymer. The material of the present invention is also a high strength bonding agent particularly suited for bonding porous PTFE to itself or to other porous substances at room or elevated temperatures.

Abstract: A solution of a polyketone as a copolymer of carbon monoxide and one or more olefins, wherein 90 wt % or more of said copolymer comprises carbon monoxide units and olefin units, and a solvent is an aqueous solution of at least one member selected from the group consisting of zinc salts, calcium salts, thiocyanates and iron salts.

Abstract: Polymers of the formula wherein x is 0 or 1, R1-4 are alkyl, aryl, arylalkyl, or alkylaryl groups, X1-4 are halogens, a?, b?, c?, and d? are 0–4, UE is an unsaturated ester group, e, f, g, and h are 0–4, at least one of e, f, g, and h is ?1 in at least some monomers, SE is a saturated ester group, i, j, k, and m are 0–4, at least one of i, j, k, and m is ?1 in at least some monomers, a?+e+i?4, b?+f+j?4, c?+g+k?4, d?+h+m?4, RX represents the total number of haloalkyl groups in the polymer, the ratio of UE groups to SE groups to RX groups in the polymer is ??:??:?? wherein ?? is from about 1 to about 99.99, wherein ?? is from about 0.01 to about 99, wherein ?? is from 0 to about 50, and wherein ??+??+??=100.

Abstract: The invention provides secondary sulfonamide polymers, wherein some, most, or all of the sulfonamido protons have been replaced with a substituent other than hydrogen. The invention also provides methods for preparing such polymers as well as devices (e.g. composite membranes) incorporating such membranes.

Abstract: Processes for preparing polymers of the formula wherein m is 0 or 1, X is chlorine, bromine, or iodine, and n, e, and f are each, independently of the others, integers wherein e may be 0 and n and f are each at least 1 by providing a first reaction mixture containing a first solvent, a compound of the formula wherein Y is a chlorine or fluorine atom, a compound of the formula and optionally, a compound of the formula heating the first reaction mixture and removing generated water therefrom, thereby forming an intermediate polymer of the formula providing a second reaction mixture containing a second solvent, the intermediate polymer, and a N-halosuccinimide, wherein the halogen atom in the N-halosuccinimide is the same as the halogen atom that is X; and heating the second reaction mixture, thereby forming the polymer.

Abstract: The present invention relates to a new process for preparation of conducting polyaniline. More particularly the present invention relates to a simple process for preparation of conducting polyaniline in non acidic medium.

Abstract: An aromatic ether oligomer or polyaromatic ether comprising the formula: wherein Ar is an independently selected divalent aromatic radical; formed by reacting a dihydroxyaromatic with a dihaloaromatic; and wherein the reaction is performed in the presence of a copper compound and cesium carbonate. The polyaromatic ether is formed when neither the dihydroxyaromatic nor the dihaloaromatic is present in an excess amount. The aromatic ether oligomer is formed by using an excess of either dihydroxyaromatic or dihaloaromatic. A phthalonitrile monomer comprising the formula: formed by reacting a 3- or 4-nitrophthalonitrile with a hydroxy-terminated aromatic ether oligomer. A thermoset formed by curing the phthalonitrile monomer. Processes for forming all the above.

Abstract: Phenolic resins and processes of making these phenolic resins that are useful for making binders for mineral wool insulation products are disclosed. The addition of a boron salt early in the process of making these phenolic resins leads to enhanced properties such as a reduction in the amount of tetradimers and an improvement in the stability of both the base resin and the pre-react.

Abstract: A process for producing alkali metal polymaleimide salts by alkaline hydrolysis of maleimide polymers prepared by polymerization of maleimide monomers in the presence of a metal oxide and alcohol initiator or a base. In particular, the process produces alkali metal polymaleimide salts with particular ratios of C—N and C—C connected maleimide-derived monomer units which are dependent on the particular initiator used to synthesize the maleimide polymer. The alkali metal polymaleimide salts, which have chelating and anti-scaling properties, are useful as chelating agents and detergent builders and as such are suitable biodegradable replacements for synthetic polymers and sodium polyaspartate.

Abstract: The invention relates to a process for preparing polyfluoroalkyl-lithium compounds by deprotonation of polyfluoroalkyl compounds by means of lithium bases.

Abstract: A process for the production of aliphatic oligocarbonate diols is disclosed. The optionally catalyzed high yield process entails the multistage transesterification of aliphatic diols with dimethyl carbonate. In the process DMC-methanol mixtures that have been distilled off are recycled to the reaction solution with further conversion and depletion of the contained DMC in the same or in a following reaction batch.

Abstract: A process for the production of polyacetylene derivatives by which polyacetylene derivatives having an ability to discriminate asymmetry can be easily obtained in a few steps and in high yield and which is also advantageous in respects of economical efficiency, environmental problems, and so on. This process is characterized by polymerizing an acetylene derivative having a hydrophilic functional group in an aqueous solvent in the presence of a water-soluble transition metal complex catalyst and a base.

Abstract: A process for producing an aromatic polyether having a high molecular weight, small dispersion of the molecular weight, excellent in the heat resistance as well as the impact resistance and represented by the formula (1): wherein each of x1 and x2 independently represents a halogen, and n represents an integer of 1 or above is provided, which comprises polymerizing 4,4′-biphenol with a 4,4′-dihalogenodiphenyl sulfone represented by the formula (2): wherein x1 and x2 have the same meaning as above, in an amount exceeding 1 time by mole and not exceeding 1.05 time by mole based on said 4,4′-biphenol in diphenyl sulfone and in the presence of an alkali metal carbonate and/or an alkali metal bicarbonate at a temperature which is not lower than 240° C. and not higher than 270° C.

Abstract: Disclosed are polyketone fibers which contain a ketone unit represented by —CH2CH2—CO— as a main repeating unit, and have an intrinsic viscosity of not less than 0.5 dl/g, a crystal orientation of not less than 90%, a density of not less than 1.300 g/cm3, an elastic modulus of not less than 200 cN/dtex, and a heat shrinkage of −1 to 3%. The polyketone fibers are high in strength and elastic modulus, and excellent in fatigue resistance, processability, heat resistance, dimensional stability, and, besides, adhesion, and, therefore, can be applied to the fields which require high fatigue resistance, such as tire cords, belts, hoses, ropes, etc.

Abstract: A phenol-formaldehyde resole resin for use as a binder for glass fibers is acidified to a pH of 3 or less after base-catalyzed resinification. An increase in actual solids is observed compared with neutralized resin. Phenol-formaldehyde-urea-ammonia resins are surprisingly stable at pH 3 with desirable cure profiles.

Abstract: The present invention is directed to a process for producing a powder free natural latex article and the articles produced by the process. In one embodiment, the process of the present invention may be used to form a powder free natural latex glove which has very low levels of extractable protein without being subjected to a halogenation processes. The process includes forming a natural rubber article on a former and then, either before or after stripping the article from the former, contacting the article with a rinse solution comprising the ionic species of a disassociated metal salt. In one embodiment, the metal salt may be sodium chloride. Contact with the rinse solution may lower protein levels in the latex. When the article is stripped from the former prior to contact with the rinse solution, the rinse solution may also remove any residual powders from the glove in order to produce a powder free natural rubber article.

Abstract: This invention relates to a novel polyarylene sulfide resin or a resin composition comprising said polyarylene sulfide resin moldable with reduced generation of flash. The polyarylene sulfide resin of this invention comprises 0.5-10% by weight of the constituent unit represented by the following general formula (1) and 80-99.5% by weight of the constituent unit represented by the following general formula (2): —(Ar1—S—)n  (1) —(Ar2—S—)m  (2) wherein Ar1 is the radical represented by general formula (3), Ar2 is phenylene or alkyl-substituted phenylene radical, R1-R7 are independently hydrogen atoms or lower alkyl radicals containing 1-3 carbon atoms and n and m are integers of 1 or more.

Abstract: A process for the recycling of PET flakes from comminuted PET bottles, wherein the flakes are subjected to a washing treatment, are treated for at least 20 minutes in at least one washer at an elevated temperature higher than 70° C. with a cleaning solution which contains caustic soda, and at the same time are also mechanically and hydraulically treated.

Abstract: Naphthalenesulfonic acid-formaldehyde condensates are used as assistants in the drying of aqueous polymer dispersions. Also described is a process for preparing polymer powders by drying, using these condensates; the polymer powders obtainable by the process; and their use as binders.

Abstract: An aromatic ether oligomer or polyaromatic ether comprising the formula: wherein Ar is an independently selected divalent aromatic radical; formed by reacting a dihydroxyaromatic with a dihaloaromatic; and wherein the reaction is performed in the presence of a copper compound and cesium carbonate. The polyaromatic ether is formed when neither the dihydroxyaromatic nor the dihaloaromatic is present in an excess amount. The aromatic ether oligomer is formed by using an excess of either dihydroxyaromatic or dihaloaromatic. A phthalonitrile monomer comprising the formula: formed by reacting a 3- or 4-nitrophthalonitrile with a hydroxy-terminated aromatic ether oligomer. A thermoset formed by curing the phthalonitrile monomer. Processes for forming all the above.

Abstract: A process for working up polymer components prepared by emulsion polymerization is disclosed. The process is characterized in that coagulation of the aqueous polymer latex present after emulsion polymerization is performed using a combination of A) an aqueous solution of at least one salt selected from the group consisting of sodium chloride, calcium chloride, magnesium chloride, aluminum chloride, sodium sulfate, magnesium sulfate and aluminum sulfate, B) an aqueous solution of at least one salt of an acid selected from the group consisting of hypophosphorous acid (H3PO2), phosphorous acid (H3PO3 or HPO2) and ascorbic acid and optionally C) an aqueous dilute acid selected from the group consisting of sulfuric acid, phosphoric acid and acetic acid.

Abstract: The present invention relates to a method of preparing a polyether poly(N-substituted urethane) comprising an electrolytic compound and a polymer matrix, wherein the polymer matrix is a copolymer comprising polyether unit and polyurethane unit and has 50,000-2,000,000 of a weight average molecular weight, where N-positions of the polyurethane unit are substituted with oligo(ethylene oxide) derivatives which provide flexibility and electrolytic conduction of the polymer matrix by controlling its length, composition, structure and crosslinked degree. Accordingly, the solid polymer electrolyte of the present invention provides excellent thermal stability, electrochemical stability and mechanical properties and thus, is suitable for use in polymer secondary batteries and electrochemical devices.

Abstract: A phenol-formaldehyde resole resin for use as a binder for glass fibers is acidified with sulfamic acid to a pH of 3 or less after base-catalyzed resinification. An increase in actual solids observed compared with neutralized resin, reflecting a desired improvement in efficiency.

Abstract: Disclosed is a process for preparing a polymer of the formula wherein x is an integer of 0 or 1, A is one of several specific groups, such as B is one of several specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units, said process comprising (A) providing a reaction mixture which comprises (i) a solvent, (ii) a compound of the formula (iii) a compound of the formula (iv) a compound of the formula wherein a is an integer of from 1 to 5, R′ is a hydrogen atom, an alkyl group, an aryl group, an arylalkyl group, an alkylaryl group, an alkoxy group, an aryloxy group, an arylalkyloxy group, an alkylaryloxy group, a polyalkyleneoxy group, or a mixture thereof, and (v) a carbonate base; and (B) heating the reaction mixture and removing generated water from the reaction mixture, thereby effecting a polymerization reaction.

Abstract: The invention is a polyester resin that includes between about 20 and 200 ppm of an inert particulate additive, preferably selected from the group consisting of surface-modified talc and surface-modified calcium carbonate. The invention is also a method of making the polyester resin, which is capable of being formed into low-haze, high-clarity bottles possessing reduced coefficient of friction.

Abstract: For separation and recovery of dimethyl terephthalate (DMT) and ethyiene glycol (EG) from polyester waste containing foreign materials, the polyester waste is treated in EG containing a polyester depolymerization catalyst, a solid foreign material fraction floated on the surface of the resultant reaction solution is removed and the residual solid foreign material fraction is removed from the remaining solution fraction. The remaining solution fraction is distilled and concentrated and the distilled EG is recovered. A transesterification reaction catalyst and methanol are mixed into the distillation residue. The resultant reaction mixture is recrystallized and subjected to centrifugal separation to separate the reaction mixture into the DMT cake and a mixture solution, and then the cake is distilled whereby high-purity DMT is recovered. The residual mixture solution is subjected to distillation treatment for recovery of the methanol, and the distillation residue is distilled to recover EG.

Abstract: The present invention relates to a process for hydrogenating ethylenically unsaturated double bonds in polymers P by reacting an aqueous dispersion of at least one polymer P with hydrogen in the presence of at least one hydrogenation catalyst comprising at least one transition metal selected from rhodium and/or ruthenium and at least one nonionic phosphorus compound capable of forming a coordinative compound with the transition metal, which comprises incorporating the hydrogenation catalyst into the aqueous dispersion of the polymer P without adding a solvent. The present invention also relates to the aqueous dispersions of the hydrogenated polymers P obtainable by this process and to coating compositions comprising such dispersions.

Abstract: The present invention relates to processes for producing borohydride compounds. In particular, the present invention provides efficient processes and compositions for the large-scale production of borohydride compounds of the formula YBH4 by the reaction of a boron-containing compound represented by the formula BX3 with hydrogen or an aldehyde to obtain diborane and HX, and reacting the diborane with a Y-containing base selected from those represented by the formula Y2O, YOH and Y2CO3 to obtain YBH4 and YBO2. Y is selected from the group consisting of the alkali metals, pseudo-alkali metals, alkaline earth metals, an ammonium ion, and quaternary amines of the formula NR4+, wherein each R is independently selected from hydrogen and a straight- or branched-chain C1-4 alkyl group, and X is selected from the group consisting of halide ions, —OH, —R′ and —OR′ groups, chalcogens, and chalcogenides, wherein R′ is a straight- or branched-chain C1-4 alkyl group.

Abstract: An improved process for the polymerization of polytrimethylene terephthalate by esterification of terephthalic acid or dimethylterephthalate with 1,3-propanediol (PDO), precondensation of the esterification product to produce a precondensation product, and polycondensation of the precondensation product to produce polytrimethylene terephthalate wherein excess PDO is removed from the esterification and/or polycondensation stages and PDO vapor is separated from the high boiling fraction (solid byproduct). The improvement comprises: (a) heating the solid byproduct in the presence of about 5 ppm to about 5000 ppm, based on metal, of a metal catalyst selected from the group consisting of one or more 3rd, 4th, or 5th row metal compounds from Groups 3-12 and Groups 14-15 of the Periodic Table (IUPAC 1989) at a temperature of from about 100° C. to about 240° C.

Abstract: The invention relates to novel polymers containing fluorene structural elements, monomer parent compounds upon which said polymers are based, and the use of said inventive polymers as organic semiconductors and/or as electroluminescent material, in addition to electroluminescent devices containing said polymers.

Abstract: There is disclosed a process for treating a by-product salt from a polyarylene sulfide which comprises treating a solid mixture containing an aprotic organic solvent and the by-product salt that is formed in the case of producing the polyarylene sulfide by subjecting an alkali metal sulfide and a dihalogenated aromatic compound to polymerization condensation reaction in the aprotic organic solvent, characterized in that the aprotic organic solvent is recovered by dry treating the solid mixture by the use of a dryer having a self-cleaning property. It is enabled by the above process to efficiently recover the aprotic organic solvent, and thereby produce the objective polyarylene sulfide at a lower cost.

Abstract: Preparation process for a novolak aralkyl resin having excellent heat resistance and curing property by reacting 0.4 to 0.8 mol of an aralkyl compound based on one mol of the low molecular weight novolak containing 90% by weight or more of bi-nuclear novolak in the presence of an acidic catalyst, the process comprising at first melting the low molecular weight novolak, heating it up to a reaction temperature, then adding 0.001 to 0.05% by weight of the acidic catalyst to the total amount of the low molecular weight novolak and the aralkyl compound, then continuously adding the aralkyl compound for reaction, neutralizing the residual acidic catalyst after the completion of the reaction, a novolak aralkyl resin obtained by the preparation process and a novolak aralkyl resin composition containing said resin.