Abstract: Process for preparing essentially uncrosslinked hyperbranched, water-soluble or water-dispersible polyesters from dicarboxylic acids and polyether polyols having at least 3 OH groups. Water-soluble hyperbranched polyesters which are obtainable by such a process and their use for producing printing inks, adhesives, coatings, paints and varnishes.

Abstract: The invention relates to unsaturated, amorphous polyesters based on certain dicidol isomers and on saturated and/or unsaturated dicarboxylic acids.

Abstract: This invention provides a novel polymerization catalyst other than antimony compounds, polyester produced by using the same and a process for producing polyester. The polycondensation catalyst of this invention is a polyester polymerization catalyst comprising an aluminum compound and a phosphorus compound having a specific structure. Further, this invention relates to polyester produced by using this polyester polymerization catalyst and a process for producing polyester. Further, this invention relates to fibers, films and hollow molded articles comprising the polyester.

Abstract: In a polyester production method, a titanium compound having a radical selected from a carbonyl group, a carboxyl group, or an ester group, and a phosphorous compound having a structure illustrated in Formula (I), are added This yields a polyester composition which does not exhibit increased filter pressure when forming, which has excellent filament and film forming properties, and which has a polymer color tone superb to that of conventional products.

Abstract: The present invention allows the production of a polymerizable hyperbranched polyester by introducing polymerizable unsaturated double bonds into the molecular terminals of a hyperbranched polyester polyol (A), which is obtained by condensation polymerization a polyhydroxy monocarboxylic acid in which there are at least two hydroxyl groups, the carbon atom adjacent to the carboxy group is saturated carbon atom, and the hydrogen atoms on said carbon atom are all substituted, by reacting the hyperbranched polyester polyol (A) and an alkyl ester of a carboxylic acid having a polymerizable unsaturated double bond (B) by a transesterification in the presence of at least one type of transesterification catalyst (C) selected from the group consisting of a dialkyl tin oxide and a stanoxane, without causing side reactions such as nucleophilic addition reactions of terminal hydroxyl groups to polymerizable unsaturated double bonds of the hyperbranched polyester polyol (A), or thermal polymerization of the polymerizable

Abstract: Disclosed is a method for preparing a biodegradable polymer in the form of uniform powder or spherical particles by dispersion polymerization without a grinding step. The method for preparing a biodegradable polyester includes dispersing a monomer in the presence of a catalyst in a dispersion solvent to form a solid or liquid phase for dispersion polymerization and thereby to yield a biodegradable aliphatic polyester in the form of spherical particles or powder, the monomer comprising a mixture of a first compound (e.g., lactide or glycolide) and a second compound being selected from the group consisting of polyhydric alcohols (e.g., glycerin, erythritol, penterythritol or dipentaerythritol) and carprolactone. The present invention readily prepares a biodegradable polymer having a high molecular weight in the form of uniform powder or spherical particles.

Abstract: Processes for the living polymerization of olefin monomers with terminal carbon-carbon double bonds are disclosed. The processes employ initiators that include a metal atom and a ligand having two group 15 atoms and a group 16 atom or three group 15 atoms. The ligand is bonded to the metal atom through two anionic or covalent bonds and a dative bond. The initiators are particularly stable under reaction conditions in the absence of olefin monomer. The processes provide polymers having low polydispersities, especially block copolymers having low polydispersities. It is an additional advantage of these processes that, during block copolymer synthesis, a relatively small amount of homopolymer is formed.

Abstract: The present invention relates to polymeric/oligomeric methacrylate functionalized amide acetals are effective in preparing coating composition based on their reaction with isocyanates.

Abstract: A continuous process for the production of poly(trimethylene terephthalate) is disclosed. According to the process, a liquid feed mixture comprising bis-3-hydroxypropyl terephthalate and/or low molecular weight polyesters of 1,3-propanediol and terephthalic acid, the liquid feed mixture having a mole ratio of propylene groups to terephthalate groups of 1.1 to 2.2 is fed to a flasher. A first stream of gaseous by-products is continuously vaporized and removed from the flasher, and a liquid flasher reaction product having a mole ratio of propylene groups to terephthalate groups of less than about 1.5 is continuously withdrawn from the flasher. The liquid flasher reaction product is continuously fed to a prepolymerizer where it is continuously polymerized to form a poly(trimethylene terephthalate) prepolymer and a second stream of gaseous by-products.

Abstract: A method for preparing a biodegradable copolyester includes: (a) optionally preparing an aromatic prepolymer by reacting a first aromatic dicarboxylic compound with a first aliphatic glycol; (b) reacting the aromatic prepolymer with a second aromatic dicarboxylic compound and a second aliphatic glycol so as to form a first reaction product; (c) reacting the first reaction product with an aliphatic dicarboxylic compound so as to form a second reaction product; and (d) performing polycondensation of the second reaction product.

Abstract: Disclosed herein is a heat-shrinkable co-polyester film having terephthalic acid and ethylene glycol as main components and containing 1,4-cyclohexanedimethanol at the amount of 3–40 mol %. The heat-shrinkable co-polyester film has a crystallization temperature of 80–220° C., a heat shrinkage (%) higher than 30% in at least one direction of longitudinal and transverse directions in 90° C. hot water, and a maximum shrinkage stress lower than 3 kg/mm2. The film is suitable for use as various wrapping materials, such as covering, binding and casing materials. Particularly, the film is used to cover a cap, body and shoulder, etc. of various vessels and rod-shaped molded articles and thus to provide labeling, protection, binding or an improvement in product value. Also, the film can be used for multi-package.

Abstract: Disclosed herein is a composition, for example, a cosmetic care and/or makeup composition for a keratin material, comprising, in a cosmetically acceptable medium, i) at least one polyester resulting from esterification of at least one Guerbet capped polyester ii) at least one oil of a molar mass ranging from 650 to 10,000 g/mol, and iii) at least one colorant. The composition may possess cosmetic properties and can, for example, endow the makeup or care product with properties of gloss, smoothness of application and comfort. Further disclosed herein is the use of the at least one polyester and the at least one oil with a molar mass ranging from 650 to 10,000 g/mol in a physiologically acceptable composition as an agent for endowing the composition with properties of slip, gloss, comfort, definition, non-migration, enhanced color intensity and/or enhanced color retention after challenge.

Abstract: A water-dilutable polyester resin ABCD having a mass fraction of from 1 to 10% of units derived from unsaturated cocondensed building blocks, an olefinic double bond content of from 10 to 2 000 mmol/kg, and a sulfonic acid group content of from 20 to 300 mmol/kg, modified if desired by copolymerizing olefinically unsaturated monomers in the presence of the polyester resin, a process for preparing them, and their use in particular in one-component coating compositions in combination with amino resin curatives.

Abstract: A process for preparing thermoplastic poly(3-hydroxyalkanoates) with a molar mass greater than 6 000 g/mol and a melting point in the range from 70 to 170° C., by reacting an oxirane compound with carbon monoxide in the presence of a transition metal catalyst which has rhodium(0), nickel(0), iron(0), cobalt(0) or palladium(0) as central metal and has been chelated with neutral Lewis bases, and also in the presence of diisocyanates, ortho esters, acetals, anhydrides, P2O5, MgO, MgCl2, MgSO4, zeolites, or a mixture of these, at a pressure in the range from 1 to 250 bar and at from room temperature to 150° C.

Abstract: The present patent describes a biocompatible composite made of a first fibrous layer attached to a three-dimensional inter-connected open cell porous foams that have a gradient in composition and/or microstructure through one or more directions. These composites can be made from blends of absorbable and biocompatible polymers. These biocompatible composites are particularly well suited to tissue engineering applications and can be designed to mimic tissue transition or interface zones.

Abstract: A binder resin for a toner comprises a polyester component having a specific structure which is not soluble in tetrahydrofuran, and a polyester component having a specific branched structure which is soluble in tetrahydrofuran. The binder resin can provide a toner, which is superior in low-temperature fixation and offset resistance and can be used in high speed printing in response to the recent market demands owing to its specific structure.

Abstract: A copolyester composition comprising units of residues of a) about 1–40 mole % of trans 3,3?, trans 4,4? stilbene dicarboxylic acid and the combination thereof, b) about 99˜60 mole % of cis,trans, and the combination thereof of 1,4 cyclohexane dicarboxylic acid, and c) about 50˜100 mole % of cis, trans, and the combination thereof of 1,4-cyclohexane dimethanol. The resulting copolyester may be characterized by its clarity, as well as enhanced heat performance due to the presence of the stilbene moiety.

Abstract: The present invention provides a method for preparation of poly(o-phenylenediamine) nano-belt comprising mixing aqueous solutions of o-phenylenediamine and of oxidant in a mole ratio of 1:0.1–1 under stirring; standing for 0.5–2 hrs at room temperature; and obtaining poly(o-phenylenediamine) nano-belt. The method is suitable for large-scale production. In the absence of template and surfactant, aqueous solutions of o-phenylenediamine and of oxidant are mixed in a specified mole ratio and thus obtain a poly(o-phenylenediamine) nano-belt with length of several hundred micrometers, width of several hundred nanometers and thickness of tens nanometers. The method is simple, quick and suitable for large-scale manufacture. The poly(o-phenylenediamine) nano-belt thus prepared possesses excellent semiconductor properties and is one of the most promising conductive polymer materials.

Abstract: Disclosed is a multistage fluidized SSP reactor that tightens the distribution of residence time and the resulting average intrinsic viscosity of the polymer product. Less residence time is needed to achieve a desired average intrinsic viscosity. As the polymer beads continuously flow through sequential stages, poly-condensation reactions continue to develop almost under plug-flow conditions. Five fluidized stages or more provide advantageous performance.

Abstract: A catalyst composition is disclosed. The composition comprises a titanium compound, a complexing agent, hypophosphorous acid or its metal salt, water and optionally a solvent. The complexing agent can be hydroxycarboxylic acid, alkanolamines, aminocarboxylic acids, or combinations of two or more thereof. The solvent can be water, ethanol, propanol, isopropanol, butanol, ethylene glycol, propylene glycol, isopropylene glycol, butylene glycol, 1-methyl propylene glycol, pentylene glycol, or combinations of two or more thereof. The titanium compound can be combined with a zirconium compound. Also disclosed is a process for using the composition for producing an ester or a polyester. The process comprises contacting a carbonyl compound, in the presence of the compositions, with an alcohol under a condition suitable for esterification, transesterification, polymerization, or combinations of two or more thereof.