Abstract: A thermoplastic composition is disclosed, comprising a polymer component comprising a polysiloxane-polycarbonate copolymer comprising siloxane units of the formula wherein each occurrence of R is the same or different and is independently a C1-13 monovalent organic group; the average value of E is 4 to 60; and carbonate units of the formula wherein at least about 60 percent of the total number of R1 groups are a divalent C6-36 aromatic organic group, and the balance thereof are C1-36 aliphatic, C5-36 alicyclic, or C6-36 aromatic organic groups; and 0.03 to 5 weight percent, based on the total weight of the polymer component, of a polymeric compound comprising at least two epoxy groups, wherein the polymeric compound has a weight average molecular weight of 1,500 to 18,000 Daltons.

Abstract: A polymer blend consisting essentially of at least one thermoplastic polymer, and a polymer comprising structural units derived from a 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine is disclosed.

Abstract: A thermoplastic composition comprises A) 25 to 95 parts by weight of a first polycarbonate consisting essentially of i) 25 to 100 mole percent of a first carbonate unit comprising an alkyl-substituted bisphenol carbonate unit, ii) 0 to 75 mole percent of a second carbonate unit where the first and second carbonate units are not identical, and the sum of the mole percentages of the first and second carbonate units in the first polycarbonate is 100 mole percent; B) 5 to 75 parts by weight of a polyester-polycarbonate where the molar ratio of carbonate unit to arylate ester unit is 95:5 to 10:90; and C) 0 to 65 parts by weight of a second polycarbonate, where the first polycarbonate and second polycarbonate are not identical, and the sum of the parts by weight of the first polycarbonate, the polyester-polycarbonate, and the second polycarbonate is 100 parts by weight.

Abstract: A method of increasing the branching and polydispersity of a polycarbonate includes the steps of: (a) including in the polycarbonate at least one species of an alkyl substituted monomer, and (b) treating the polycarbonate at an elevated temperature and for a sufficient time to increase the branching and polydispersity relative to an otherwise equivalent polycarbonate without alkyl substituents.

Abstract: A thiol-ene polymeric material is disclosed. The material is produced by the photopolymerization of reactants having thiol and olefin moieties. The material can incorporate encapsulated components, including cells. Additionally, the material can be derivatized by reacting the polymeric material with components such as proteins.

Abstract: Substantially solvent-free multilayer articles characterized by excellent color retention and gloss retention, solvent resistance and recyclability comprise a substrate layer which may be at least one of polycarbonates, polyesters and ABS and ASA copolymers, and a resinous coating layer which contains resorcinol or alkylresorcinol isophthalate/terephthalate ester units. An intermediate layer may also be present.

Abstract: The present invention relates to a curable thermoplastic elastomeric composition based on a polytrimethylene ether ester elastomer and a crosslinkable poly(meth)acrylate rubber system; and a melt processible thermoplastic elastomeric compositions based on a continuous phase comprising of a polytrimethylene ether ester elastomer and a disperse phase of a crosslinked poly(meth)acrylate rubber. A process for manufacturing such a melt processible thermoplastic elastomeric composition, and a shaped article (e.g. an extruded or molded article) made thereform, are also disclosed.

Abstract: Degradable polyacetal polymers and functionalized degradable polyacetal polymers have properties favorable for use in pharmaceutical and biomedical applications. The degradable polyacetal polymers are relatively stable at physiological pH with favorable biodistribution profiles, and degrade readily in low pH conditions. Conjugates of the polymers with drugs, especially anticancer drugs, and methods of treatment of cancer.

Abstract: The present invention broadly relates to the field of protein modification, and, more specifically, to conjugates of proteins or analogs thereof to a water-soluble biocompatible polymer and methods of making and using the same.

Abstract: A data storage medium includes a haze-prevention layer between a heat-resistant thermoplastic substrate and a reflective metal layer. The haze-prevention layer includes a metal having a tensile modulus of at least about 15×106 pounds per square inch. The data storage medium resists hazing of the reflective layer at elevated temperatures.

Abstract: A reflective article useful, for example, in automotive headlights includes a haze-prevention layer between a heat-resistant thermoplastic substrate and a reflective metal layer. The haze-prevention layer includes a metal having a tensile modulus of at least about 15×106 pounds per square inch. The article resists hazing of the reflective layer at elevated temperatures.

Abstract: A method of preparing an ion-conducting material, for example membrane, having reduced sensitivity to water includes a step of treating an ion-conducting polymeric material (especially a sulphonated polyaryletherketone and/or sulphone) which has at least some crystallinity or which is crystallizable with a means to increase its crystallinity. The ion-conducting material prepared may be used in a Membrane Electrode Assembly of a fuel cell.

Abstract: The present invention provides a method of producing an aqueous dispersion. A resin (b) or a solvent solution thereof, or a precursor (b0) of the resin (b) or a solvent solution thereof is dispersed in an aqueous dispersion of resin particles (A) composed of resin (a), and is caused the precursor (b0) to react where the precursor (b0) or a solvent solution thereof is used, to prepare resin particles (B) composed of said resin (b). Thereby, an aqueous dispersion (X1) of resin particles (C) having a structure such that the resin particle (A) adheres to the surface of the resin particle (B) is obtained.

Abstract: A fluorescent article is disclosed comprising a polymer matrix comprising a polymer having in its backbone repeating units of a U.V. light absorbing moiety, or a moiety capable of being transformed by photo-Fries rearrangement into a U.V. light absorbing moiety, the matrix further comprising a fluorescent dye. The matrix affords surprisingly improved fluorescence protection as compared to prior fluorescent articles having only U.V. light absorbing additives.

Abstract: To provide a resin composition, in which a liquid crystal polymer is made into fiber in a molded article to exhibit an extremely high reinforcing effect which has not been available yet, and from which a molded article having an excellent mechanical strength can be manufactured in a stable manner. That is, a thermoplastic resin composition, wherein 100 parts by weight in total consisting of 99-50 parts by weight of a thermoplastic polyester resin (A) not forming an anisotropic molten phase and 1-50 parts by weight of a liquid crystal polymer (B) capable of forming an anisotropic molten phase is blended with 0.001-2.

Abstract: In polymerizing biodegradable polymer material, a compressed gas is used as a reaction solvent for a solution-polymerization, in order to prepare biodegradable polyester homopolymer and copolymer with a high molecular weight in a fine powder form with a particle size of 0.01˜1000 ?m.

Abstract: A coil coating composition producing a coil coating with excellent properties at a lower peak metal temperature includes (a) a first, branched polyester prepared by condensation of a polyol component consisting essentially of a flexibilizing diol, 2-methyl-1,3-propanediol, and a polyol having at least three hydroxyl groups and an acid component consisting essentially of isophthalic acid; (b) a second, essentially linear polyester prepared by condensation of a polyol component consisting essentially of a flexibilizing diol and 2-methyl-1,3-propanediol and an acid component consisting essentially of isophthalic acid; and (c) a crosslinking agent.

Abstract: A process for making a high molecular weight (co)polycarbonate resin is disclosed. The process entails (i) obtaining at least one member selected from the group low molecular weight residue (weight average molecular weight 15,000 to 30,000) of aromatic (co)polycarbonate production, waste of (co)polycarbonate production, remainders of (co)polycarbonate production and (co)polycarbonate recyclate (ii) melting the said member in a suitable vessel to obtain a melt and (iii) feeding the melt into a reactor optionally along with at least one bisphenol or oligocarbonate having terminal OH groups and further optionally with a transesterification catalyst, and (iv) subjecting the melt to transesterification reaction at a temperature of 250 to 350° C., at a pressure below 5 mbar and residence time of 0.02-4 hours.

Abstract: The present invention is a modeling technique wherein a three-dimensional model and its support structure are built by fused deposition modeling, using a thermoplastic blended material containing a polyphenylsulfone (PPSF) polymer and a polycarbonate (PC) polymer to form the model. The PPSF/PC blend exhibits good chemical resistance, thermal stability, and resists build-up in the nozzle of a three-dimensional modeling apparatus. Removal of the support structure from a completed model is facilitated by operating on the material while it is hot.

Abstract: A thermoplastic molding composition comprising polycarbonate and 50 ppm to 300 ppm, in relation to the weight of the composition, of diphenyl carbonate is disclosed. The composition is especially suitable for the preparation of extruded sheets, in particular coextruded.

Abstract: A novel compound and novel gelatinous substance which have high absorbability, uniform expansion, and elasticity. Although conventional gels include chemical gels and physical gels, no novel gels or compounds have been realized which have fracture resistance, high entropic elasticity, and biodegradability. The present invention provides a novel compound and a novel gelatinous substance which each comprises a crosslinked polyrotaxane obtained by chemically bonding two or more polyrotaxane molecules through the cyclic molecules or rotators thereof.

Abstract: A thermoplastic polymer molding composition useful for producing an article, where the molding composition comprises a polyorganosiloxane-polycarbonate block copolymer and a flow modifier; wherein the flow modifier is at least one selected from the group consisting of a polyalkylene glycol, a low weight average molecular weight polycarbonate polymer, or mixtures thereof; and further wherein the flow modifier reduces surface imperfections when molded into the article.

Abstract: Disclosed is a flame retardant resin composition comprising: 100 parts by weight of a resin component (A) which is a resin mixture of an aromatic polycarbonate and a styrene polymer, wherein the resin mixture has an aromatic polycarbonate content of from 50 to 95% by weight and a styrene polymer content of from 5 to 50% by weight; 0.1 to 30 parts by weight of an organopolysiloxane (B) which comprises 0 to 70 mol % of a monofunctional siloxane unit (M unit), 0 to 100 mol % of a bifunctional recurring siloxane unit (D unit), 0 to 100 mol % of a trifunctional recurring siloxane unit (T unit), and 0 to 63 mol % of a tetrafunctional recurring siloxane unit (Q unit); and 0.0005 to 5 parts by weight of at least one inorganic metal salt (C) selected from the group consisting of inorganic alkali metal salts and inorganic alkaline earth metal salts.

Abstract: Disclosed is a modeling technique wherein a three-dimensional model and its support structure are built by fused deposition modeling, using a thermoplastic blended material containing a polyphenylsulfone (PPSF) polymer and a polycarbonate (PC) polymer to form the model. The PPSF/PC blend exhibits good chemical resistance, thermal stability, and resists build-up in the nozzle of a three-dimensional modeling apparatus. Removal of the support structure from a completed model is facilitated by operating on the material while it is hot.

Abstract: Copolymers of polycarbonates or polyarylates with polyether polymers such as polyethersulfones, polyetherketones, and polyetherimides are prepared by reaction of the polyether polymer-forming reagents, e.g., bisphenol A disodium salt and bis(4-chlorophenyl) sulfone, in the presence of the polycarbonate or polyarylate. The reaction may take place in a dipolar aprotic solvent, or in a water-immiscible aromatic solvent in the presence of a phase transfer catalyst, preferably a hexaalkylguanidinium halide. Hydroxy-terminated polyether oligomers may be produced from the copolymers by saponification of carbonate or ester groups.

Abstract: Thermally stable block copolyestercarbonates comprising chain members derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety, said polymer being substantially free of anhydride linkages linking at least two mers of the polyester chain segments, are prepared by a method comprising the steps of: (a) preparing a hydroxy-terminated polyester intermediate comprising structural units derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety; and (b) conducting a reaction of the polyester intermediate with phosgene in a reaction mixture comprising water, a substantially water-immiscible organic solvent, and a base, wherein base and phosgene are added simultaneously to the reaction mixture at a substantially constant molar ratio of base to phosgene for a time period of at least about 60% of the total amount of phosgene added.

Abstract: The present invention relates to powder coating binders containing polyurethanes having (meth)acryloyl groups which are applied onto a substrate, fused with heat and cured by electromagnetic radiation and to a process for preparing the same.

Abstract: A polyoxyalkylene monoalkyl ether which gives, in gel permeation chromatography, a chromatogram which satisfies a relation expressed by an equation: S1/S0≦0.

Abstract: A process for selectively modifying pendent functionalities of a polymer containing the pendent functionalities and hydrolytically unstable backbone functionalities is provided. The process includes: (a) providing the polymer in a solvent system (preferably an ether-containing solvent system) adapted to maintain the polymer in a dissolved or partially dissolved state, wherein the pendent functionalities of the polymer are more accessible than the hydrolytically unstable backbone functionalities; and (b) adding at least one additive to the solvent system to selectively modify at least one of the pendent functionalities. The process is especially well suited for specifically acid hydrolyzing pendent esters of PDTE.

Abstract: The present invention is a thermoplastic elastomer (TPE) composition comprising crosslinked elastomeric PVB and a thermoplastic polymer, and a process for making said TPE composition.

Abstract: A process for the production of high molecular weight aliphatic polycarbonates is disclosed. The process entails a first stage wherein a low molecular weight aliphatic polycarbonate is prepared and a second stage where the low molecular weight aliphatic polycarbonate is condensed with diaryl carbonate in a melt transesterification process to form a high molecular weight aliphatic polycarbonate. The resulting high molecular weight aliphatic polycarbonate is suitable for the production of extrudates, films and molded articles.

Abstract: A method of preparing block copolymers by solid state polymerization is described. A mixture of a partially crystalline polycarbonate having activated terminal aryloxy groups, for example terminal methyl salicyl groups, when heated together with an oligomeric polyester having reactive terminal hydroxy groups under solid state polymerization conditions affords block copolymers. The activated terminal aryloxy groups play a key role in preserving the block lengths of the starting materials. A control sample in which the partially crystalline polycarbonate lacks activated terminal aryloxy groups, for example polycarbonates substituted by phenol, affords a much lower molecular weight, more highly randomized copolymer product. The product block copolymers are useful as “weatherable” plastic materials.

Abstract: To provide an antistatic polymer composition that can manifest a uniform antistatic effect permanently with little change in the surface resistance of moldings owing to humidity.

Abstract: The present invention includes a composition having a co-continuous interconnecting channel morphology. These co-continuous interconnecting channels are predominately occupied with a polymer and particles that control the percolation through the composition. The particles are composed of a material such as an absorbing agent, releasing agent and/or activation agent. The polymer composition may be used to form a desired shaped article such as plug type inserts and liners for closed containers, or it may be formed into a film, sheet, bead or pellet.

Abstract: A compatible blend of polycarbonate resin with a vinyl (co)polymer blending partner is disclosed. The preparation of inventive blend comprise reactive blending of polycarbonate, a vinyl (co)polymer and a novel compatibilizer in the presence of a transesterification catalyst and under conditions of time and temperature designed to promote transesterification.

Abstract: The present invention relates to a process for working up solutions of polymers in organic solvents contaminated by alkaline constituents, using homogeneously soluble acids, especially by the introduction of an acid gas, and subsequent washing, and to the polymers so obtainable, which are distinguished by the fact that, on treatment with moist heat (sterilisation), only few defects caused by decomposition are formed, to the use thereof in the production of extrudates and molded specimen, and to the extrudates and molded specimen produced from those polymers themselves.

Abstract: A bioabsorbable material such as a terpolymer of poly-(L-lactide/D-lactide/glycolide). The material may consist of 85 molar percent L-lactide, 5 molar percent D-lactide, and 10 molar percent glycolide. The material may have a heat of fusion of about 15-25 J/G, tensile strength retention at 26 weeks of incubation of at least about 50%, and tensile strength retention at 52 weeks of incubation of at most about 25%. The material may be used in implantable devices such as bone fixation devices.

Abstract: Solid particles containing 10 to 90 parts by weight of a dihydroxy compound and 10 to 90 parts by weight of a carbonic acid ester are disclosed. Also disclosed is a process for the production of these particles, an apparatus suitable for the process and a method for their use in production of polycarbonate by transesterification of carbonic acid esters with dihydroxy compounds.

Abstract: A polymeric material comprises at least one repeat unit consisting substantially of a moiety of Formula 1: 1

Abstract: A thermoplastic composition is described, based on a copolycarbonate which includes at least two structural units. Structure I is usually a conventional carbonate based on bisphenol A, while structure II is a bisphenol carbonate which includes branched or linear groups extending from a bridging carbon atom or carbon group which connects two aromatic rings. The compositions exhibit very good melt flow, along with enhanced shear-thinning behavior. These characteristics are important for optical disc applications. Thus, related articles are described, along with processes for preparing such articles.

Abstract: The invention relates to a polycarbonate resin composition, including (1) a colored composition that comprises two types of specifically-terminated aromatic polycarbonates along with an inorganic filler added thereto, (2) a composition that comprises a polycarbonate resin terminated with a specific phenoxy group, a functional group-having silicone compound and a core/shell-type grafted rubber-like elastomer, and (3) a composition that comprises a specifically-terminated aromatic polycarbonate-polyorganosiloxane copolymer, a specifically-terminated aromatic polycarbonate and a fibril-forming polytetrafluoroethylene.

Abstract: Block copolymers based on poly(ortho esters) containing amine groups. These block copolymers have both hydrophilic and hydrophobic blocks. They form micelles in aqueous solution, making them suitable for encapsulation or solubilization of hydrophobic or water-insoluble materials; and they also form bioerodible matrices for the sustained release of active agents.

Abstract: The reaction of unsaturated carbonates such as vinyl ethylene carbonate with N-aminoethylimidazolidone (TAM) under mild conditions generates a mixture of two vinyl and hydroxy functional imidazolidone carbamates which polymerize readily into acrylate or vinyl acetate based emulsion polymers. The polymers show enhanced wet adhesion (wet scrubbability) in latex paints and coatings.

Abstract: Disclosed are resinous compositions with excellent balance of impact, heat, flow and environmental stress crack resistance, comprising (i) at least one aromatic polycarbonate, (ii) at least one low molecular weight hydrocarbon resin derived from petroleum C5-C9 feedstock and (iii) optionally a second thermoplastic resin which is not polycarbonate resin, (iv) optionally a rubber modified graft copolymer, and (v) optionally a polymeric or non-polymeric organic phosphorus species. Also disclosed is a method for the manufacture of the compositions and for the manufacture of articles thereof.

Abstract: An optical polycarbonate resin molding material comprising pellets formed from a polycarbonate resin, wherein the pellets satisfy the following properties (1) and (2):

Abstract: Disclosed are flame retardant resinous compositions comprising (i) at least one aromatic polycarbonate; (ii) at least one of a second polymer having structural units derived from one or more monomers selected from the group consisting of vinyl aromatic monomers, monoethylenically unsaturated nitrile monomers, and C1-C12 alkyl (meth)acrylate monomers; (iii) at least one rubber modified graft copolymer; (iv) at least one polymeric or non-polymeric organic phosphorus species; (v) at least one antidrip agent; and (vi) at least one perfluoroalkanesulfonate salt present in an amount in a range between about 0.01 wt % and about 0.25 wt %, based on the weight of the entire composition. Also disclosed are methods for making said compositions.

Abstract: Phenolic resin polyols are disclosed. The polyols, which contain aliphatic or mixed phenolic and aliphatic hydroxyl groups, are the reaction products of aralkylated phenols or phenol aralkylation polymers with an oxyalkylating agent selected from alkylene oxides and alkylene carbonates. The phenolic resin polyols are versatile intermediates for many polymer systems, including urethanes, epoxies, alkyds, acrylates, and polyesters.

Abstract: The present invention relates to a resin composition which gives a resin product with a low hygroscopic property, an adhesive for connecting a circuit member and a circuit board, and provides a resin composition, an adhesive for connecting a circuit member and a circuit board comprising (A) a polyhydroxy polyether resin represented by the 1

Abstract: A polycarbonate having excellent color, a low content of foreign substances, a low content of an OH terminal group, little quality variation and excellent moldability and a production method therefor.

Abstract: A fluorescent article is disclosed in which a U.V. light screening layer comprising a polymer having in its backbone repeating units of a U.V. light absorbing moiety, or a moiety capable of being transformed by Photo-Fries rearrangement into a U.V. light absorbing moiety, is disposed in operative screening relation to a layer containing a fluorescent colorant. The U.V. light screening layer affords surprisingly improved fluorescence protection as compared to prior U.V. light screening layers having only U.V. light absorbing additives.