Abstract: A dimethyl terephthalate residual composition including a. dimethyl terepthalate derived from a terephthalic-containing polyester homopolymer, terephthalic-containing polyester copolymer, or a combination thereof and b. from more than 0 to less than 5.1 wt. % of a residual component selected from dimethyl isophthalate, cyclohexane dimethanol, diethylene glycol, triethylene glycol, or a combination thereof.

Abstract: A copolyester and preparation method and use thereof are disclosed. In the diacid components constituting the copolyester, the content of the structure unit of terephthalic acid is 90 mol % or more. In the dihydric alcohol components constituting the copolyester, the content of the structure unit of ethylene glycol is 70-99 mol % and the content of the structure unit of aliphatic dihydric alcohol having 6 or less carbon atoms and having a side chain is 1-30 mol %. The copolyester further comprises a structure unit of polyethylene glycol. The copolyester can be made into fiber by common method, and further made into fabric, and the obtained finished-product has good dyeability to disperse dyes under normal temperature and normal pressure.

Abstract: A polyester heat storage material and a preparation method thereof are disclosed. The repeating unit of the polyester's main chain comprises a diacid fragment and a polyalkylene glycol fragment. The method for preparing the polyester heat storage material includes melting diacid anhydride and polyalkylene glycol and conducting the polycondensation reaction.

Abstract: The present invention is directed to a series of sorbitol esters that have two different molecular weight ester chains, one solid and one liquid, which when combined into a single molecule make a polymer that is solid, but has very unique flow properties. These materials find applications as additives to formulations in personal care products where there is a desire to have a structured film (provided by the solid fatty group) and flow properties, (provided by the liquid fatty group). These compounds by virtue of their unique structure provide outstanding skin feel.

Abstract: A back sheet for a solar cell, consisting of a polyester comprising at least one repeating unit of trimethylene naphthalate and trimethylene terephthalate in an amount of 85% by weight or more, has improved hydrolysis-resistance and is useful in the field requiring weatherability.

Abstract: Hydrolytically degradable polymers in the form of biodegradable disposable medical devices for use in medicine and laboratories such as syringes, test tubes, catheters, tubing, trays, medical fabrics, and gloves are described. The devices are formed in whole or in part of a hydrolytically degradable polymer. In the preferred embodiment, the devices or structural components thereof degrade in a period of weeks to months, preferably within a year and more preferably within six months of exposure to aqueous solutions. Conventional hydrolytically degradable polymers may be utilized or these may be modified to increase mechanical or processing characteristics, for example, using a polyfunctional branching agent and/or a chain extending agent. In one embodiment, the hydrolytically degradable polymer is a member of a new class of polyesters comprising an aliphatic dicarboxylic acid, an aliphatic diol and optionally, one or more bifunctional fatty acids such as ricinoleic acid and/or castor oil.

Abstract: The subject of the present invention is a process for preparing polyester alcohols by condensation of polytetrahydrofuran with aromatic dicarboxylic acids and/or their anhydrides in the presence of a transesterification catalyst in a multi-stage operation at different pressure levels with at least one reaction stage at atmospheric pressure and at least one reaction stage at reduced pressure, where distillate is removed from the reaction system, which process comprises heating the reaction mixture in two or more phases in the atmospheric-pressure reaction stage wherein the heating phases are interrupted by at least one phase in which the temperature is kept constant.

Abstract: A method of making an aliphatic polyester prepolymer, comprising: reacting, alone or in combination with other reactants, a diol with at least a first diacid (or a diester of said first diacid) to produce an aliphatic polyester prepolymer. The first diacid is preferably a trans-beta-hydromuconic acid (HMA). In some embodiments, the diol contains at least one ether linkage. In some embodiments the diol is further reacted with at a second diacid, or a diester of said second diacid, wherein said second diacid is different from said first diacid. Prepolymers produced from such processes and articles formed therefrom are also described.

Abstract: A series of resins were synthesized using a range of bio-based materials to control the molecular architecture, and therefore the properties, of the inventive resins. The utility of these resins was demonstrated in the formulation of powder coatings, such as ?-hydroxy amide crosslinked and hybrid types. Generally, the bio-based resins flowed out on heating faster than conventional petrochemically-based resins, allowing the use of lower temperatures in the curing oven than is typically possible and a more active catalyst system, especially in the carboxylic acid-epoxy crosslinked hybrid coatings formulations.

Abstract: There is provided a quinoxaline-containing compound represented by the following formula (I); wherein Ar1 represents a substituted or unsubstituted monovalent aromatic group; and R1 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group.

Abstract: A process for crystallizing a polyester polymer by introducing a molten polyester polymer, such as a polyethylene terephthalate polymer, into a liquid medium at a liquid medium temperature greater than the Tg of the polyester polymer, such as at a temperature ranging from 100° C. to 190° C., and allowing the molten polyester polymer to reside in the liquid medium for a time sufficient to crystallize the polymer under a pressure equal to or greater than the vapor pressure of the liquid medium. A process flow, underwater cutting process, crystallization in a pipe, and a separator are also described.

Abstract: To provide a polyether ester block copolymer which has surface hardness suitable to be applied to a structural member and excellent in sound deadening quality and tribological property, a polyether ester block copolymer of the present invention comprises (a) aromatic dicarboxylic acid unit, (b) 1,3-propanediol and/or 1,4-butanediol unit and (c) long chain diol unit mainly including polyoxytrimethylene glycol, wherein the durometer hardness (type D), measured according to the principle of the method described in JIS K6253, is 40 or larger and 78 or smaller.

Abstract: The invention relates to a method for producing a thermoplastic resin, comprising using a composition at least comprising a fluorene-containing dihydroxy compound represented by the following formula (1) and a fluorene-containing hydroxy compound represented by the following formula (2) in an amount of from 0.5 parts by weight to 1.5 parts by weight relative to 100 parts by weight of the fluorene-containing dihydroxy compound of formula (1).

Abstract: The present invention relates to a process for producing clingfilms by using biodegradable polyesters obtainable via polycondensation of: i) from 65 to 80 mol %, based on components i to ii, of one or more dicarboxylic acid derivatives or dicarboxylic acids selected from the group consisting of: succinic acid, adipic acid, sebacic acid, azelaic acid, and brassylic acid; ii) from 35 to 20 mol %, based on components i to ii, of a terephthalic acid derivative; iii) from 98 to 102 mol %, based on components i to ii, of a C2-C8-alkylenediol or C2-C6-oxyalkylenediol; iv) from 0.1 to 2% by weight, based on the polymer obtainable from components i to iii, of at least trifunctional crosslinking agent or at least difunctional chain extender. The invention further relates to polymer mixtures which have particular suitability for producing clingfilms, and to clingfilms which comprise biodegradable polyesters.

Abstract: The present invention provides an alkyd resin comprising of polyols, natural oil polyol and polybasic acid or its anhydrides with a high acid number and a high viscosity and molecular mass. The invention also provides a process for preparing the same thereof and ink formulation comprising the said alkyd resin.

Abstract: The polymerization processes described herein provide methods for controlling the dehydration of glycols such that dimers are formed as glycol ethers and incorporated into aliphatic-aromatic copolyetheresters during polycondensation. Control over this phenomenon provides unique polymer compositions with a range of thermo-mechanical properties, crystallinity, bio-content and biodegradability.

Abstract: A method of preparing an aliphatic copolyester by mixing a first compound defined by the equation: and a catalyst, and adding a second compound defined by and a lactide, wherein the second compound and the lactide have a total weight less than the first compound, wherein a is 10-230, b, d and e have a ratio of 10-35:10-35:80-30, c is 1-4, and f is 1-10. The method further adds the second compound and the lactide, wherein the second compound and the lactide have a total weight less than the first compound, the second compound and the lactide in the prior mixing step. The method further adds the second compound and the lactide, wherein the second compound and the lactide have a total weight less than the first compound, the second compound and the lactide in of the prior mixing steps.

Abstract: A heat-shrinkable polyester film having a heat-shrinkage change per degree Celsius (%/° C.) along the main shrinkage direction of 1.5 to 3.0 in the range of 60° C. to 70° C., 2.5 to 3.5 in the range of 70° C. to 80° C., 1.0 to 2.0 in the range of 80° C. to 90° C., and 0.1 to 1.0 in the range of 90° C. to 100° C., has a good appearance quality after shrinkage and thus suitable for a wrapping material, particularly a label for a bottle.

Abstract: A method of making an aliphatic polyester prepolymer, comprising: reacting, alone or in combination with other reactants, a diol with at least a first diacid (or a diester of the first diacid) to produce an aliphatic polyester prepolymer. The first diacid is preferably a trans-beta-hydromuconic acid (HMA). In some embodiments, the diol contains at least one ether linkage. In some embodiments the diol is further reacted with at a second diacid, or a diester of the second diacid, wherein the second diacid is different from the first diacid. Prepolymers produced from such processes and articles formed therefrom are also described.

Abstract: This invention relates to aliphatic-aromatic copolyesters that can exhibit improved tear strength and improved rate of biodegradation. Particularly to an aliphatic-aromatic copolyester having a dicarboxylic acid component and a glycol component. The invention also relates to articles and blends using the copolyesters.

Abstract: A thermoplastic resin composition according to the present invention contains an inorganic filler and a thermoplastic resin whose main chain contains a repeating unit represented by the general formula (1): -M-Sp-??(1) wherein M represents a mesogenic group; and Sp represents a spacer.

Abstract: The polymerization processes described herein provide methods for dehydrating diols such that dimers of the diols are formed and incorporated into polyesters during polycondensation. Control over this phenomenon provides unique polymer compositions with a range of thermo-mechanical properties, crystallinity, bio-content and biodegradability. Generation of a wide range of properties allows development of polymers that can be used for a wide range of applications.

Abstract: The present invention relates to a kind of biodegradable polyester and its preparation method, which belongs to the field of biodegradable co-polyester product technology. The number-average molecular weight of the biodegradable polyester material under this invention is 6000-135000 g/mol, the molecular weight distribution is 1.2-6.5, and the range of crystallization temperature is 15° C.-105° C., which could overcome the disadvantages of existing technical products and can be processed into membrane materials, sheet materials and foam materials. During processing, the picking property will be dramatically changed with the appearance quality improved; after heat resistance is improved, this new type of polyester material could also be applied to the processing course with long cycles, for example, the injection processing course, and the biodegradable aliphatic/aromatic polyester materials provided by this invention has excellent mechanical properties.

Abstract: A polyester production process employing an esterification system that utilizes a horizontally elongated esterification vessel as an esterification reactor and/or a vapor-liquid disengagement vessel.

Abstract: A polyester is used as an elastomer component for gum bases. A method of making gum bases which include such polyesters is also disclosed. The polyester includes as polyester-forming components in condensed form; a) at least one aliphatic dicarboxylic acid; b) at least one aliphatic diol; and c) at least one compound having at least three groups capable of ester formation in an amount of from 0.1 to 10.0% by weight, based on the total weight of the polyester, wherein the polyester includes the components a) and b) in an amount of at least 90, in particular at least 95% by weight, based on the total weight of the polyester.

Abstract: Disclosed herein is a novel stabilizer for preparing a polymer polyol, which is used to prepare polyurethane foam having improved physical properties. The stabilizer is prepared by allowing maleic anhydride to react with a polyether polyol, having an OH functionality of 3-8 and a molecular weight of 3,000-15,000, and then adding ethylene oxide to the reaction solution. Because the molecular weight and functionality of the stabilizer are increased through aging and dimerization, the stabilizer has a high molecular weight of 5,000-30,000, a high OH functionality of 6-10 and a viscosity of 3,000-15,000 cps/25° C. A polymer polyol derived from the stabilizer has low viscosity compared to those of prior products and contributes to the improvement in the physical properties of the resulting polyurethane foam.

Abstract: A process to prepare polyol esters from tertiary alkyl acid with reduced homo-polymerisation of the polyols. The ester polyol can be used in the synthesis of further polyester resins for coating or structural/composite or lube oil applications.

Abstract: A molding produced by a layer-by layer process of selectively melting regions of a respective pulverulent layer via unfocused introduction of electromagnetic energy, using a polymer powder, where the powder has at least one thermoplastic random copolymer with an ISO 1133 MFR value of from 12 to 1 g/10 min.

Abstract: The present invention provides a dual crosslinked biodegradable polymer and methods of making and using the polymer. The dual crosslinked biodegradable polymer composition includes a multifunctional monomer; a diol; and an unsaturated di-acid at least partially polymerized to form a network and photocrosslinked into a dual crosslinked polymer network.

Abstract: An intermediate transfer member that contains a polymer of a polyester, a polycarbonate and a polyalkylene glycol, such as a polyethylene glycol, and further including as an optional component a conductive material such as a metal oxide or carbon black.

Abstract: This invention relates to processes for the production of purified, partially esterified polyol fatty acid polyesters and the compositions derived from those processes. The purified, partially esterified polyol fatty acid polyesters of the present invention are particularly well suited for use in a variety of food, beverage, pharmaceutical, and cosmetic applications and comprise less than about 5% polyol; less than about 5 ppm of residual solvent; less than about 700 ppm of lower alky esters; less than about 5% of a soap and free fatty acid mixture; less than about 3% of ash; and have an acid value of less than about 6.

Abstract: A semi-crystalline, absorbable copolyester composition 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 diethylene glycol; and the copolyester comprises about 30 to 60% by weight of the polycondensation polyester based on the total weight of the copolyester. Also medical devices such as absorbable sutures comprising such copolyesters and absorbable microspheres comprising such copolyesters and methods of making of such absorbable microspheres.

Abstract: A process for continuous or discontinuous synthesis of elastomeric copolyesters from polybutylene terephthalate (PBT) and polyoxytetramethylene glycol is described in which the tetrahydrofuran (THF) obtained as a byproduct in synthesis of polybutylene terephthalate from 1,4-butanediol is rectified and then reacted by ring-opening polymerization to form polyoxytetramethylene glycol which condenses with the free or esterified carboxyl groups of PBT to form the copolyester, whereby chain termination and catalyst deactivation are accomplished by adding 1,4-butanediol without separating the catalyst.

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: In order to provide a resin composition with a well-balanced properties such as thermal resistance, moldability, flexibility and others through the use of a polyhydroxycarboxylic-acid-based resin, the resin composition contains at least a polyhydroxycarboxylic-acid-based resin comprising a structural unit represented by Formula (1) as a main structural unit; and a polyoxytrimethyleneglycol-based resin comprising a structural unit represented by Formula (2) as a main structural unit —R1—COO—??(1) (where, R1 in Formula (1) represents a divalent aliphatic hydrocarbon group)

Abstract: The invention is directed to novel poly(ether-ester)polyols, processes for their production from monocarboxylic or polycarboxylic acid esters with one or more bound polyether chain(s). This invention also relates to the production of polyurethane materials in which the isocyanate-reactive component comprises these poly(ether-ester)polyols.

Abstract: The present invention is directed to a class of polyesters that are lightly crosslinked polyesters made by reacting alkoxyglyceryl units (linked by the reaction of their hydroxyl groups) to the carboxyl group of dimer acid. The polymers and a contribute softness, lubricity and antistatic properties when applied to hair, skin, textile fiber and paper.

Abstract: The invention provides a novel polyester adapted for use in a charge control agent for a toner for an electrophotographic process, having a charge stability, a high charge amount, an improved dispersibility and a biodegradability, and a producing method and an application technology therefore.

Abstract: A low shrinkage, polymerizable oligomer comprises units of the structure: AB??(I) wherein A is an organic radical comprising 1 to about 6 (meth)acrylate groups and 0 to about 5 hydroxy groups; B is an organic radical comprising 1 to about 5 epoxide groups, and wherein A and B are linked through the reaction of an epoxide and a hydroxy group. In one embodiment, a dental restorative material comprises the low shrinkage, polymerizable dental oligomer, a filler system, and a curing system. These polymerizable dental resins may be used for a variety of dental materials, treatments, and restorative functions, including crown and bridge materials, fillings, adhesives, sealants, luting agents or cements, denture base materials, orthodontic materials and sealants, and other dental restorative materials.

Abstract: The present invention relates to oligoesters and their use or the creation of additives. Oligoester containing additives and/or oligoesters themselves may be used for formulating pharmaceutical preparations, cosmetics or personal care products such as shampoos and conditioners. These oligoesters are particularly useful for the creation of multi-purpose additives that can impart conditioning, long substantivity and/or UV protection. Individual oligoesters and oligoester mixtures are described.

Abstract: Block poly(trimethylene-ethylene ether) glycols are disclosed. The block poly(trimethylene-ethylene ether) glycols can be prepared by the polycondensation of 1,3-propanediol reactant and polyethylene glycol reactant. The block poly(trimethylene-ethylene ether) glycols can be used in breathable membranes, synthetic lubricants, hydraulic fluids, cutting oils, motor oils, surfactants, spin-finishes, water-borne coatings, laminates, adhesives, packaging, films and foams, fibers and fabrics.

Abstract: The present invention provides environmentally friendly demulsifiers for the break down of petroleum oil applications. The demulsification formulations of the present invention are biodegradable and are low in toxicity. The demulsifiers include a poly(tetramethylene glycol) and an alkylene glycol copolymer linked to the poly(tetramethylene glycol) by a difunctional coupling agent.

Abstract: Symmetrical polyols, polyol esters, polyesters, polyurethanes, triazoles, and polyvinylethers derived from glycerol and methods of making the symmetrical polyols, polyesters, polyurethanes, polyhydroxyvinylethers and triazoles are discussed. Also provided is a method of making serinol.

Abstract: The invention provides aqueous resin emulsion containing a resin obtained by reaction of a composition containing at least: at least one polyhydric alcohol having at least two hydroxyl groups, at least one polyetherpolyol having a molecular weight of 400 to 8000 g/mol, at least one monobasic carboxylic acid, and at least one polybasic carboxylic acid having at least two carboxyl groups or its anhydride, to form a resin and the resin emulsion is modified by providing basic groups. The invention further relates to a process for preparing a resin, to a resin as obtained by the process and to a coating film obtained from the resin emulsion.

Abstract: Sulfonated aliphatic-aromatic polyester compositions having improved thermal properties, and articles such as films, coatings and laminates, produced from the sulfonated aliphatic-aromatic polyester compositions, are provided. Some of the films are biocompostable. Films made from the sulfonated aliphatic-aromatic copolyesters can be used to make shaped articles, such as sheets, thermoformed containers, and coatings for, for example, films and other substrates. The sulfonated aliphatic-aromatic copolyesters are produced from a mixture of aromatic dicarboxylic acids, aliphatic dicarboxylic acids, certain glycols, and components containing alkali metal or alkaline earth metal sulfonate groups, such as a metal 5-sulfoisophthalic acid derivative.

Abstract: The present invention relates to a composition which includes macrocyclic ethylene isophthalate dimer. More specifically, the composition can be: i) A composition comprising polyhydric alcohol, multi-functional carboxylic acid and macrocyclic ethylene isophthalate dimer; ii) A multi-arm polyester resin having a polymer containing: a central unit of a multi-functional molecule of either a multi-functional carboxylic acid or a multi-functional polyhydric alcohol, but not both, and arms derived from macrocyclic ethylene isophthalate dimer. iii) An unsaturated polyester comprising a macrocyclic ethylene isophthalate dimer and one or more polyhydric alcohols, and optionally, one or more aliphatic and/or aromatic acids to form a melt of polymer; then condensing the polymer and one or more ethylenically unsaturated dicarboxylic acids.

Abstract: A polymer and a method for its preparation are provided. The polymer comprises poly(lactide), poly(lactide/glycolide) or poly(lactic acid/glycolic acid) segments bonded by ester linkages to both ends of an alkanediol core unit. The polymer is for use in a controlled release formulation for a medicament, preferably leuprolide acetate. The controlled release formulation is administered to a patient as a subcutaneous depot of a flowable composition comprising the polymer, a biocompatible solvent, and the medicament. Controlled release formulations comprising the polymer release leuprolide for treatment of prostate cancer patients over periods of 3-6 months.

Abstract: The object of the invention is to provide a polyester composition that actively scavenges oxygen, with or without a transition metal catalyst. This was achieved by using a monomer selected from the group consisting of linear difunctional monomers having the general formula: X—(CH2)n—CH?CH—(CH2)m—X? wherein X and X? are each independently selected from the group consisting of OR and COOR, wherein R is selected from the group consisting of H and alkyl groups with one or more carbon atoms; and n and m are each independently 1 or more. The preferred monomer is 2-butene-1,4-diol (BEDO), and the preferred polyester is the reaction product of this diol with terephthalic acid to form poly(oxy-2-butene-1,4-diyloxycarbonyl-1,4-phenylenecarbonyl)—PBET. Copolymers of PBET are also within the scope of this invention. The polyester oxygen scavenging composition is then blended with conventional container resin such as polyesters, polyamides or polyolefins to make a container.

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) a compound of the formula wherein m is 0 or 1, Y and Y? each, independently of the other, is fluorine or chlorine, and A is as defined herein, (iii) a compound of the formula wherein B is as defined herein, and (iv) a carbonate base; and (B) heating the reaction mixture and removing generated water from the reaction mixture, thereby effecting a polymerization reaction. Also disclosed are polymers prepared by this process and imaging members containing these polymers.

Abstract: Polyester compositions and methods to prepare and use such compositions are provided. The polyester compositions include a polybutylene terephthalate resin (PBT) and at least one additive, and have a cyclic dimer content of less than 0.35 wt. % relative to the weight of the PBT. Molded parts prepared from such polyester compositions, and mirror optic systems such as headlights for motor vehicles or garden reflector lights which include the molded parts are also described.