Abstract: High strength bioresorbable polymers suitable for orthopaedic applications comprising sulphonyl diphenol, hydroxybenzoic acid and dicarboxylic acid.

Abstract: A molding composition comprising (a) from 5 to 90 wt % of a modified polybutylene terephthalate random copolymer that (1) is derived from polyethylene terephthalate component selected from the group consisting of polyethylene terephthalate and polyethylene terephthalate copolymers and (2) at least one residue derived from the polyethylene terephthalate component, and (b) from 5 to 40 wt % of a polyalkylene terephthalate component; wherein the modified polybutylene terephthalate random copolymer, the polyalkylene terephthalate component, and optionally, at least one additive, have a combined weight % of 100 wt %. Methods for making the composition and articles made from the composition.

Abstract: A continuous process for the reactive compatibilization of polymers includes I. processing monooxazoline, bisoxazoline or a mixture thereof together with a first polymer, to give a reactive polymer; and II. adding the reactive polymer to one or more second polymers. In addition, a reactive polymer contains I. a first polymer; and II. at least 5% by weight of chemically unbound monooxazoline, bisoxazoline or a mixture thereof.

Abstract: A copolymer and a process of making the copolymer are disclosed. The copolymer is produced from reacting a glycidyl ester and/or ether with a polyol comprising a functionality of at least 2 wherein at least 50% by weight of the copolymer comprises a minimum of 3n+X repeating units, wherein n is a monomer unit and X is a monomer unit and/or other reactant. The copolymer may also include less than 50% of the polymeric units having the same molecular weight. The present invention is further directed to processes for preparing the copolymer and to coating compositions employing the copolymer.

Abstract: A bioderived plasticizer for biopolymers includes a compatibilizing unit and a polyester plasticizing unit. The plasticizer improves the flexibility of biopolymers while not adversely affecting their modulus. The compatibilizing unit renders the plasticizer more miscible with the desired base biopolymer and includes a lower alkyl (C3 to C7) organic acid. The polyester plasticizing unit is formed from monomers comprising a multifunctional alcohol and an aliphatic anhydride or its equivalent dicarboxylic acid and ester derivatives. The polyester plasticizing unit may optionally include one or more difunctional alcohols in combination with the multifunctional alcohol. The resulting the bioderived plasticizer has a low glass transition temperature (Tg), preferably between ?20° C. to 30° C. The plasticizer is preferably amorphous.

Abstract: The invention is directed to polyester processes where the esterification process at utilizes a vapor removing device, wherein the vapor removing device is substantially horizontally oriented, wherein the esterification effluent forms a two-phase laminar, stratified, non-circular vapor/liquid flow in at least a portion of said vapor removing device.

Abstract: A multilayer article comprises a substrate layer, and a coating layer in contiguous superposed contact with the substrate layer, the coating layer comprising a thermostable, weatherable polymer comprising structural units derived from at least one 1,3-dihydroxybenzene moiety, at least one aromatic dicarboxylic acid moiety, at least one bisphenol moiety, and at least one soft-block moiety derived from a siloxane oligomer, in which the multilayer article comprises the substrate layer and the coating layer, or the substrate layer with coating layers on each side of the substrate layer.

Abstract: A process for preparing modified polymer by withdrawing a slip stream of polymer melt from the discharge line of a continuous polymerization reactor, admixing in a highly modified polymeric additive into the polymer melt within the slip stream, then introducing the modifier containing slip stream late in the manufacturing process prior to the slip stream withdrawal point. The improved processes of the invention have particular utility for large-scale, continuous reactor where transitions and short production runs are economically prohibitive thereby limiting the product breath. The process is particularly suited for producing a family of copolyesters using a continuous melt phase production process.

Abstract: A gas barrier film comprising a gas barrier laminate on a substrate film, in which the gas barrier laminate comprises at least one three-layer unit consisting of a silicon oxynitride layer, a silicon oxide layer, and a silicon oxynitride layer disposed in this order.

Abstract: The present invention relates to a biaxially stretched polyester film comprising a polyester layer A which comprises polybutylene terephthalate and at least one of a copolyester and an amorphous polyester, said biaxially stretched polyester film satisfying any one of the following requirements: (1) the polyester layer A exhibiting one melting point as measured by temperature-rise DSC method, and the polyester film having an edge tear resistance of not more than 100 N in each of longitudinal and width directions thereof; and (2) an average number of uncompatilized polybutylene terephthalate masses having a maximum length of not less than 1 ?m which are present in a section of the layer A is not more than 1.0 per 100 ?m2 of the section of the layer A, and the polyester film having an edge tear resistance of not more than 100 N in each of longitudinal and width directions thereof.

Abstract: The invention provides reagents and methods for conjugating a polymer specifically to the ?-amine of a polypeptide. The invention provides monofunctional, bifunctional, and multifunctional PEGs and related polymers having a terminal thioester moiety capable of specifically conjugating to the ?-amine of a polypeptide having a cysteine or histidine residue at the N-terminus. The invention provides reactive thioester-terminated PEG polymers that have suitable reactivity with an N-terminal cysteine or histidine residue of a polypeptide to produce an amide bond between the PEG molecule and the polypeptide.

Abstract: Processes for producing polyethylene terephthalate copolyesters are disclosed, that include the steps of: esterifying a mixture of at least terephthalic acid, from 20 mole percent to 45 mole percent 1,4-cyclohexanedimethanol, and ethylene glycol, optionally in the presence of one or more alkaline earth metals or alkali metals, to form an oligomer; polycondensing the oligomer in the melt phase in the presence of aluminum and one or more alkaline earth metals or alkali metals, to obtain a copolyester having an intrinsic viscosity of at least 0.5 dL/g; and thereafter adding to the copolyester a phosphorus-containing compound.

Abstract: The present invention relates to a new aromatic polyimide composition containing an aromatic polyimide and a polyarylene of a specific type, and to articles and parts of articles made thereof.

Abstract: Star polymers prepared by reacting a highly branched polymer and either a lactone or lactam are disclosed. These star polymers find particular application as additives for powder coating compositions, to improve various performance properties thereof. Powder coating composition comprising the described star polymers are also disclosed.

Abstract: A gas-barrier film comprising a gas-barrier laminate on a substrate film, wherein the gas-barrier laminate comprises at least one three-layer unit consisting of a silicon oxinitride layer, an organic interlayer and a silicon oxinitride layer disposed in this order being adjacent with each other. The film has excellent transparency, gas-barrier performance and bending resistance.

Abstract: A gas barrier film comprising a gas barrier laminate on a substrate film, wherein the gas barrier laminate comprises at least one three-layer unit consisting of a silicon nitride layer, a silicon oxynitride layer adjacent to the silicon nitride layer, and a silicon nitride layer adjacent to the silicon oxynitride layer. The gas barrier film has excellent transparency and gas barrier property.

Abstract: A gas barrier film comprising a gas barrier laminate on a substrate film, in which the gas barrier laminate comprises at least one three-layer unit consisting of a silicon nitride layer, a silicon carbide compound layer, and a silicon nitride layer disposed in this order being adjacent with each other.

Abstract: Poly(propylene fumarate) is copolymerized with poly(caprolactone) diol to produce a block copolymer of poly(propylene fumarate) and poly(caprolactone). The biocompatible and bioresorbable block copolymer of poly(propylene fumarate) and poly(caprolactone) is useful in the fabrication of injectable and in-situ hardening scaffolds for tissue and/or skeletal reconstruction. The block copolymer can be crosslinked by redox or photo-initiation, with or without an additional crosslinker. Thus, the copolymer is both self-crosslinkable (without the use of any crosslinkers) and photocrosslinkable (in the presence of photons such as UV light).

Abstract: An improved curable formaldehyde-free binding composition is provided. Such curable composition comprises the reaction product of a polyanhydride and a polyol crosslinker and a lower molecular weight anhydride. Initially, the polyanhydride is modified through reaction with a polyol (e.g., a glycol or an alkanolamine) and subsequently is grafted with the lower molecular weight anhydride (e.g., maleic anhydride) to form a water-soluble or water-dispersible curable reaction product. The composition is well suited for binding fibrous materials (e.g., a mat of glass fibers) or for bonding together non-fibrous materials. The binder composition displays an advantageous viscosity so as to facilitate a flowable application with ease combined with an adequately high molecular weight to satisfactorily undergo service as a binder following curing even when harsh environmental conditions (e.g., hot humid air) are encountered for a prolonged period of time.

Abstract: The present invention relates to a composition of at least one cation of an element selected from Group IIA elements, transition metals, Group IIB elements, Group IIIA elements, Si, Ge, Sn, Pb, As, Sb, Bi, Te, and Po and at least one polyester resin, which can be used as a low VOC binder for the manufacture of fibrous insulation.

Abstract: Described are polyesters comprising (a) a dicarboxylic acid component comprising terephthalic acid residues; optionally, aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues; 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; and cyclohexanedimethanol residues. The polyesters may be manufactured into articles such as fibers, films, bottles or sheets.

Abstract: A resin composition for molding, added with a nucleating agent suitable for promoting crystallization of a polyester capable of having a crystal structure, and in particular of a biodegradable polyester, and a molded product containing, the resin composition for molding thus improved in the crystallinity has either a cyclic compound expressed by general formula (I): (where each of A1, A2, A4 and A5 commonly or independently expresses —CO— or —NH—, each of A3 and A6 commonly or independently expresses hydrogen, halogen, optionally-substituted aliphatic group or optionally-substituted aromatic group) and having both of —CO— and —NH— in the molecule, or a mixture of (i) a cyclic compound having —CO— but no NH in the molecule and (ii) a cyclic compound having no —CO— but NH in the molecule, together with the polyester capable of having a crystal structure.

Abstract: The present invention relates to a process for producing an acid anhydride-based epoxy resin curing agent, an acid anhydride-based epoxy resin curing agent, an epoxy resin composition, and a cured product and optical semiconductor device using the same. The process for producing an acid anhydride-based epoxy resin curing agent according to the present invention comprises heating a mixture containing a polyvalent carboxylic acid anhydride and a polyester resin in the presence of hydrogen gas and a hydrogenation catalyst.

Abstract: The present invention provides compositions of crystalline coordination copolymers wherein multiple organic molecules are assembled to produce porous framework materials with layered or core-shell structures. These materials are synthesized by sequential growth techniques such as the seed growth technique. In addition, the invention provides a simple procedure for controlling functionality.

Abstract: A crosslinker for polymerizing a film-forming material including an alkyl or aromatic compound comprising at least two functional groups reactive with a film-forming resin and at least one pendent group having a nonionic metal coordinating structure. Coating compositions can include a film-forming material and the crosslinker. The coating compositions can be used to coat a substrate, such as a metal substrate. Applied coating layers on substrates can be cured to form coating films.

Abstract: A polyester resin for electrostatic image developing toner includes: two or more polyester blocks, and the polyester resin satisfying the following conditions (A) to (C): (A) an ester concentration of the polyester resin is about 0.01 or more and less than about 0.1; (B) a weight average molecular weight of the polyester resin is about 24,000 or more; and (C) a difference in SP values of at least two kinds of the two or more polyester blocks is about 0.1 to about 0.7.

Abstract: The invention is a method for the late introduction of additives into polyethylene terephthalate. The method employs a reactive carrier that functions as a delivery vehicle for one or more additives. The reactive carrier reacts with the polyethylene terephthalate, thereby binding the reactive carrier in the polyethylene terephthalate resin and preventing the emergence of the reactive carrier and additives from the polyethylene terephthalate during subsequent thermal processing.

Abstract: Film-forming materials include nonionic metal coordinating structures. Nonionic metal coordinating structures can coordinate metals, such as metal catalysts and metal substrates. Example film-forming materials can be the product of a poly-functional epoxide and a nucleophilic ligand having a nonionic metal coordinating structure, or the product of a poly-functional alcohol and an electrophilic ligand having a nonionic metal coordinating structure.

Abstract: A polytrimethylene terephthalate resin comprising 60 to 100 mole % of (a) trimethylene terephthalate recurring units, and 0 to 40 mole % of (b) at least one monomer unit obtained from a comonomer copolymerizable with at least one of the monomers used for forming the recurring units, the total molar amount of (a) monomer units and (b) monomer units being 100 mole %, and the resin having the following characteristics (A) to (D): (A) an intrinsic viscosity [?] of from 0.6 to 4 dl/g; (B) a molecular weight distribution (Mw/Mn) of from 2 to 2.7; (C) a cyclic dimer content of not greater than 2% by weight; and (D) a psychometric lightness L-value of from 70 to 100 and a psychometric chroma b*-value of from ?5 to 25.

Abstract: The present invention relates to polyesters which have been modified with one or more polyamines having at least one primary and at least one secondary amino group, to processes for preparing them and to their use.

Abstract: The present invention relates to a composition that, when incorporated into various steps of household and/or commercial laundering cycles provides highly durable treatment improving softness, moisture absorption and transport as well as antistatic characteristics of polyester, polyester/spandex polyester/cotton and cotton fabrics and corresponding articles made from these fabrics thereof.

Abstract: A method for preventing adhesion using a co-polyester comprising the reaction product of a polycondensation polyester and at least one lactone, wherein the polycondensation polyester comprises the reaction product of diglycolic acid and/or a derivative thereof and ethylene glycol; and the co-polyester comprises about 40 to 50% by weight of the polycondensation polyester based on the total weight of the co-polyester.

Abstract: Ultraviolet light stabilized copolyetherester compositions that comprise at least one nanoparticulate mineral selected from titanium dioxide, cerium oxide, and zinc oxide and at least one organic ultraviolet light stabilizer. Articles formed from the compositions are also disclosed.

Abstract: The invention relates to methods and systems for the use of an oligomer recyclate from a depolymerization product stream. The oligomer byproduct of a polyester depolymerization reaction can be used as a reactant in the formation of a polyester. For example, linear oligomer byproduct can be used as a reactant in a solution polymerization to form a low-acid polyalkylene terephthalate.

Abstract: A poly(lactic acid) resin composition is provided, comprising (a) a poly(lactic acid) resin, (b) at least one modifier selected from at least one metal/nonmetal alkoxide, at least one metal/nonmetal alkoxide having at least one functional group capable of reacting with the poly(lactic acid) resin, or a mixture thereof, (c) a first catalyst, and (d) optionally, a second catalyst. A process for preparing a transparent and impact-resistant article from the poly (lactic acid) resin composition of the invention, and articles prepared therefrom are also provided.

Abstract: A method for processing polyester wastes, especially used polyester bottles, which comprises shredding, washing, drying and melting the waste mixture to obtain a starting raw material wherein a modifying agent selected from the group comprising a combination of polysiloxane and a plasticizer selected from the group of phthalates, or a combination of silazanes and silanes is added to the shredded and dried waste mixture, the amount of the modifying agent being 4 to 6% by weight, based on the waste mixture.

Abstract: Described as one aspect of the invention are polyester compositions comprising at least one polyester which comprises: (a) a dicarboxylic acid component comprising: (i) about 80 to about 100 mole % of terephthalic acid residues; (ii) about 0 to about 20 mole % of aromatic and/or aliphatic dicarboxylic acid residues having up to 20 carbon atoms; and (b) a glycol component comprising: (i) about 1 to about 49 mole % spiro-glycol residues; and (ii) about 51 to about 99 mole % at least one glycol chosen from at least one of 1,4-cyclohexanedimethanol residues and 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and wherein the total mole % of the glycol component is 100 mole %.

Abstract: Aqueous resinous binders comprising graft copolymers, water-dilutable urethane polyols and epoxy-phosphorus acid reaction products are disclosed. The binders are useful in primer formulations for automotive applications.

Abstract: The present invention provides coating compositions that include reactive diluents and have high performance, low VOC levels, and low irritation levels.

Abstract: The present invention is directed to polyphenolic polymers formed from dihydroxybenzoic acid (DHB) derivatives or from resorcinol derivatives, monomers which form such polymers, blends of the polymers with drugs and/or additional polymers, as well as medical devices formed from, coated with, impregnated by or coverings made with any of the foregoing polymers (with or without drugs) or blends (with or without drugs).

Abstract: The invention relates to biaxially oriented polyester films that include a chain extender in addition to polyester. Such films find use in all applications typical of biaxially oriented polyester films, especially in outdoor applications, as a ribbon cable, as a backside laminate of solar modules and in electrical insulation applications.

Abstract: A process for preparing a sulfonate terminated polyarylate comprises blending a polyarylate resin with an organic compound to form a reaction mixture, wherein the organic compound contains at least one aliphatic primary amine functional group and at least one other functional group selected from the group consisting of sulfonic acids, sulfonic acid salts, and mixtures thereof, and heating the reaction mixture to a temperature of 225 to 400° C. The temperature of heating is above the glass transition temperature of the polyarylate resin. Sulfonate terminated polyarylates and compositions prepared using the above process, and articles comprising the sulfonate terminated polyarylate compositions, are also disclosed.

Abstract: The present invention provides a molded article of a resin containing poly-L-lactic acid, which is excellent in heat resistance and drop impact resistance. There is disclosed a molded article characterized in that said molded article is made from a resin composition obtained by compounding a functional filler into a resin made from a poly-L-lactic acid, the functional filler being yielded by a copolymerization of a compound having 2-4 hydroxyl groups with 1-100 molecules of D-lactic acid and a low-molecular-weight polymer selected from a group consisting of glycols, aliphatic polyesters and aromatic polyesters. The resin molded article according to the present invention exerts excellent drop impact resistance without sacrificing heat resistance.

Abstract: A multilayer polymeric product is described, which consists of a co-extruded internal central layer of polyethylene terephthalate (PET) copolymer, in a quantity ranging from 80 to 90% by weight with respect to the total weight of the internal layer, mixed with polycarbonate (PC), in a quantity ranging from 10 to 20% by weight with respect to the total weight of the layer, and outer, side layers, of a blend of PET, in a quantity ranging from 15 to 25% by weight with respect to the total weight of the outer layers, and PC, in a quantity ranging from 75 to 85% by weight with respect to the total weight of said outer layers, in particular for use as a building material.

Abstract: Described as one aspect of the invention are polyesters containing (a) a dicarboxylic acid component having from 70 to 100 mole % of terephthalic acid residues and up to 30 mole % of aromatic dicarboxylic acid residues or aliphatic dicarboxylic acid residues; and (b) a glycol component having from 11 to 25 mole % of 2,2,4,4-tetramethyl-1,3-cyclobutanediol residues, and 75 to 89 mole % of cyclohexanedimethanol residues; wherein the total mole % of the dicarboxylic acid component is 100 mole %, and the total mole % of the glycol component is 100 mole %. The polyesters may be manufactured into articles.

Abstract: An aromatic polyester resin molded product, including: a matrix of 99-70 wt. parts of an aromatic polyester resin, and a disperse phase of 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin present in the matrix, wherein the molded product exhibits an oxygen permeability in its thickness direction which is in a range of 55-85% of a minimum gas permeability P0 determined by formula (1) below (Nielsen's theoretical formula): P0=P1×?1/(1+(L/2W)×?2) ??(1), wherein L denotes a longer axis of the polyglycolic acid resin disperse phase; W denotes a shorter axis (thickness) of the polyglycolic acid resin disperse phase; P1 denotes an oxygen permeability of the aromatic polyester resin in an oriented and crystallized state; ?1 denotes a volumetric fraction of the aromatic polyester resin; and ?2 denotes a volumetric fraction of the polyglycolic acid resin.

Abstract: An aromatic polyester resin composition, comprising: a melt-kneaded product of 99-70 weight parts of an aromatic polyester resin and 1-30 wt. parts (providing a total of 100 wt. parts together with the aromatic polyester resin) of a polyglycolic acid resin, wherein the composition is characterized by a transesterification rate CTE (%) of 20-60% determined by formula (1) below based on a peak integration ratio of methylene group in polyglycolic acid appearing at ?4.87 ppm with reference to tetramethylsilane according to 1H-NMR measurement: CTE(%)=(1?I(B)/I(A))×100 ??(1), wherein I (A): a peak integration ratio of the methylene group of the polyglycolic acid main chain with respect to the alkylene group of the aromatic polyester main chain calculated from the components weight ratio; and I (B): a peak integration ratio of the methylene group of polyglycolic acid main chain to the alkylene group of the aromatic polyester main chain in the resin composition.

Abstract: This invention relates to poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) biconstituent filaments, methods for making the same and end uses thereof.

Abstract: The present invention is directed to a non-gelled, curable composition including at least one compound having a plurality of imide functional groups. The compound in particular contains a reaction product of at least one secondary monoamine and at least one maleimide, and is suitable for use in coatings and castings.

Abstract: The adhesive material contains a radical-polymerizable compound, a curing agent, and a thermoplastic resin; gives a negative result of the Ames test; and has a PII, or skin irritation, value of 2 or less. In particular, all the starting ingredients should preferably give a negative result of the Ames test and have a PII, or skin irritation, value of 2 or less.