Abstract: Poly(&bgr;-amino esters) prepared from the conjugate addition of bis(secondary amines) or primary amines to a bis(acrylate ester) are described. Methods of preparing these polymers from commercially available starting materials are also provided. These tertiary amine-containing polymers are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems. Given the poly(amine) nature of these polymers, they are particularly suited for the delivery of polynucleotides. Nanoparticles containing polymer/polynucleotide complexes have been prepared. The inventive polymers may also be used to encapsulate other agents to be delivered. They are particularly useful in delivering labile agents given their ability to buffer the pH of their surroundings.

Abstract: A controlled conversion resin having an epoxy functionality of greater than 2 and comprising moieties derived from epoxy resin, dihydric phenol, acid anhydride, or amine. The resin is prepared by reacting an epoxy resin with a dihydric phenol, an acid anhydride, or amine or other branching agent in the presence of a catalyst and terminating the reaction at a point such that the reaction product contains both epoxy and terminal hydroxyl groups.

Abstract: An improved thickening composition for organic systems, including paints and coatings, is described. The additive provides paints and coatings more than adequate viscosity improvement without affecting intercoat adhesion characteristics.

Abstract: A phase change ink carrier composition comprising at least one anhydride/amino alcohol based adduct which is a reaction product of at least one anhydride and at least one amino alcohol, wherein the reaction product is an ester material or an amide material, but not an ester-amide material.

Abstract: The present invention provides a layer insulating film for multilayer interconnection of semiconductors which is excellent in resistance to heat, resistance to moisture absorption as well as in electric characteristic properties, and a process for producing the film. That is, a layer insulating film for multilayer interconnection of semiconductors which comprises a fluorine-containing polybenzoxazole resin having the structure represented by the formula (6) and obtained by a process which comprises subjecting to heat-dehydrating ring closure a fluorine-containing polyhydroxyamide resin obtained by reacting a dicarboxylic acid diester obtained from one kind of compound selected from the group of compounds represented by the formulas (2) and 2,2′-bis(tri-fluoromethyl)-4,4′-biphenyldicarboxylic acid, with 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane, (in the formula (6), m is an integer of 10-500).

Abstract: Blooming and/or syneresis in gel formulations can be reduced or eliminated by adding to an organic mixture an effective amount of a polyamide gelling agent having a softening point of less than about 105° C. wherein the polyamide is the reaction product of one or more diamines, optionally one or more mono-amines, one or more hydrogenated C36 dimer acids, optionally one or more C2-22 dicarboxylic acids, and optionally one or more C2-22 monocarboxylic acids.

Abstract: The present invention is directed to electrodepositable coating compositions providing improved film flexibility and humidity resistance. The compositions contain a substantially ungelled resin or reaction product formed from reacting (i) an epoxy functional polyester with (ii) an amine. The present invention also includes a method for electrocoating a conductive substrate with the described electrodepositable coating compositions. Additionally, the present invention is directed to a conductive substrate coated according to the described method.

Abstract: A coating powder comprising a macrocyclic oligomer and a ring-opening polymerization agent is applied to an article, fused, and converted to a linear polymer at a temperature of from about 160 to about 400° C. The powder has the low melt viscosity and friability of a thermoset powder but is converted at high fusing temperatures to a tough coating having the good impact resistance and good elongation of a thermoplastic powder. The oligomer is a polyester, polycarbonate, polyamide, polyimide, polyamideimide. The article may be coated electrostatically or in a fluidized bed.

Abstract: The color stability of thermoplastic polymers comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one organodicarboxylic acid is enhanced by combination with at least one photobleachable 4-aminocinnamic compound such as 4-dimethylaminocinnamaldehyde. The latter absorbs radiation in the range between about 360 nanometers and about 390 nanometers, balancing the radiation absorbed by hydroxybenzophenone moieties formed in the polymer.

Abstract: Novel cationic polymers and cationic lipids, and methods of making and using the same, are provided. The cationic polymers and cationic lipids are useful for the delivery of nucleic acid polymers and oligomers to cells in vitro and in vivo.

Abstract: The present invention deals with the composition, and application of polyoxyalkylene glycol dicarboxylates, and complexes thereof. The complexes are made by a series of reactions which include reaction of an anhydride with a polyoxyalkylene glycol, then formation of a complex of the poly carboxylate with quaternary compounds. The complexes are useful as softening, anti-tangle, and conditioning agents for use in personal care applications due to their outstanding mildness.

Abstract: The color stability of thermoplastic polymers comprising structural units derived from at least one 1,3-dihydroxybenzene and at least one organodicarboxylic acid is enhanced by combination with at least one photobleachable 4-aminocinnamic compound such as 4-dimethylaminocinnamaldehyde. The latter absorbs radiation in the range between about 360 nanometers and about 390 nanometers, balancing the radiation absorbed by hydroxybenzophenone moieties formed in the polymer.

Abstract: A process for increasing the pill resistance of a polyester polymer wherein the polyester polymer is produced by polymerizing a polymerization mixture comprising (a) a carbonyl compound or an oligomer of the carbonyl compound and (b) a glycol. The process comprises contacting the polymerization mixture with a cross-linker comprising (RO)mSi(X)nZp, wherein: R is hydrogen, a hydrocarbon, or a hydrocarbon oxygen; X is a hydrocarbon or a hydrocarbon oxygen; Z is a hydrophilic group; m is 1 to 3; n is 1 to 3; and p is 1 to 30.

Abstract: Polymers (i.e. polyesters, polyamides, and polythioesters or a mixture thereof) which degrade hydrolytically into biologically active compounds are provided. Methods of producing these polymers, intermediates useful for preparing these polymers, and methods of using these polymers to deliver biologically active compounds to a host are also provided.

Abstract: A high molecular weight polyester-amide block copolymer is produced by reacting a mixture of lower molecular weight polyester and polyamide in the melt with a carbonyl bislactam, especially carbonyl biscaprolactam. The higher molecular weight block copolymer may be obtained in as short a time as 2 minutes, whereas, at least about 10 minutes is required in a conventional process, under comparable conditions, using a bislactam.

Abstract: A method for increasing the molecular weight of aliphatic polyester resins from dicarboxylic aliphatic acids having 2-22 carbon atoms, or from hydroxy-acids having 2-22 carbon atoms, in which the solid resin is brought into contact with a chain extender preferably chosen from the organic disocyaciates.

Abstract: The invention relates to a linear or branched polymer containing ester groups and at least one amide group in the backbone, having hydroxyalkylamide end groups and having a weight average molecular mass of ≧800 g/mol. The invention also relates to an entirely or partly modified polymer. The polymer according to the invention can for example be obtained by reaction of a cyclic anhydride and an alkanolamine to form a &bgr;-hydroxyalkylamide, after which a polyesteramide is obtained through polycondensation. The polymers according to the invention can, for example, be used in thermosetting powder-paint compositions.

Abstract: The invention relates to a linear or branched polymer containing ester groups and at least one amidegroup in the backbone, having hydroxyalkylamide end groups and having a weight average molecular mass of ≧800 g/mol. The invention also relates to an entirely or partly modified polymer.

Abstract: A method of producing a polyamide resin by reacting with at least one diamine compounds at least one linear polyester resin consisting of at least one dicarboxylic acid component and at least one diol component and having an intrinsic viscosity of not less than 0.2 dl/g, so that the at least one diol component of the linear polyester resin is substituted by the diamine compound, resulting in the polyamide resin as a reaction product, wherein the improvement comprises: at least one of a carboxylic acid-activator and an inorganic salt being present in a reaction system of the linear polyester resin and the diamine compound.

Abstract: Ionomers (charged polymers) have carboxylate recurring units in their backbones and ammonium counterions for the carboxylate recurring units. One or more positively charged nitrogen atoms of the counterions are positioned at tetrahedral vertices of one or more spiro bicyclic ring systems.

Abstract: This invention concerns low viscosity aldimine and ketimine reactive diluents having multi-imine functionality, which are useful in automotive refinish coating compositions, including a process for making them and the coatings that contain them.

Abstract: Allyl pendent benzazole polymer system having repeating units of the formula: wherein Bz is a benzazole unit selected from the group consisting of wherein X is —O—, —S— or —NH—, and R is selected from the group consisting of wherein Ar is an aromatic group; and wherein x has a value of about 1.0 to 0.1 and y has a value of 1.0−x.

Abstract: The present invention provides a p-hydroxybenzoic ester represented by the formula (1) 1

Abstract: Polymer derivatives based upon polyalkyleneimine backbones having a color stabilizing-effective amount of their reactive amino functionalities substituted by either a carboxylic acid or an amino-protecting group such as urea, are disclosed. Methods for preparing said derivatives are also disclosed. Fiber lubricant compositions comprising said polymer derivatives, and the resistance to yellowing associated with such lubricants are disclosed. Also disclosed are methods for treating fibers using the polymer derivatives.

Abstract: A polymeric furanone magenta colorant is disclosed that contains a furanone magenta chromophore having a furanone adduct, the adduct containing at least one alkoxylated phenyl radical, the chromophore further being derived from at least one aromatic aldehyde having a para-nitrogen and containing electron donating groups selected from the group consisting of alkyls, cycloalkyls, and oligomers or polymers derived from alkyleneoxy or aryleneoxy moieties. The colorant can be utilized in resins, waxes and inks.

Abstract: An alkali sulfonated polyester-amine resin generated from the reaction of an organic diol, and a mixture of an organic diacid, an alkali sulfonated diacid and an amino-organic diacid.

Abstract: The present invention provides a p-hydroxybenzoic ester represented by the formula (1) wherein R1 represents a C6-C10 straight-chain or branched-chain alkyl group, A1 represents a C2-C4 alkylene group and n in an integer of 1 to 8, a plasticizer for at least one polyamide resin selected from nylon 11 and nylon 12 which comprises the ester, a polyamide resin composition comprising the ester and at least one polyamide resin selected from nylon 11 and nylon 12, and a polyamide resin molded article comprising the ester and having excellent high-temperature volatilization resistance and low-temperature impact resistance.

Abstract: The invention relates to a condensation polymer, as well as to a process for preparation said polymers, having at least one dialkylamide endgroup connected through the polymer backbone to a unit derived from an alkylamide, the connection comprising at least one ester linkage. The polymer according to the invention can be linear or branched. The condensation polymers can be very widely used in technically different fields, both in thermosetting and in thermoplastic applications. The invention also relates to a composition comprising the condensation polymer according to the invention, an active substance and a polymer, as well as to a process for incorporating an active substance in an object comprising at least of a polymer composition, by bringing the object into contact with the active substance. More in particular, the invention relates to the dying of polymer fibers.

Abstract: Polyether ester amides having high water vapor permeability are disclosed. The amides which are prepared simply and reliably, crystallize quickly, are biodegradable and/or compostable, and are suitable in the manufacture of films by extrusion.

Abstract: A method for controlling the properties of the product polymer of a polymerization process to improve the process productivity and product quality in both batch and continuous production of polyamides.

Abstract: The present invention provides a polyamide composition comprising: a polyamide containing an alkylene oxide group; and a metal salt. The polyamide composition of the present invention has long lasting antistatic properties and a lower surface resistivity than the polyamide alone.

Abstract: A cationic dyeability modifier for incorporation into polyesters and polyamides to increase their affinity for basic dyes, said cationic dyeability modifier having the following formula: R1OOC—(CH2)n—CH(CH2CH2SO3X)—(CH2)m—COOR2 where n is an integer from 1 to 10, m is an integer from 1 to 10, X is an alkali metal selected from the group consisting of lithium, sodium and potassium, and R1 and R2 are independently selected from hydrogen and alkyl groups having one to four carbon atoms is disclosed. Basic dyeable copolyesters and copolyamides containing the cationic dyeability modifier incorporated into the polymer chain of the copolymer are also disclosed. A process for preparing a basic dyeable copolyester by combining poly(alkylene terephthalate)-forming monomers or polyoxyalkylene glycol oligomers with the cationic dyeability modifier, and mixing and heating at a temperature sufficient to cause copolymerization to form a copolyester is also disclosed.

Abstract: The synthesis of dimethyl-1,5-naphthalenedicarboxylate and polymers and articles formed therefrom is disclosed, as well as applications for dimethyl-1,5-naphthalenedicarboxylate, its corresponding acid 1,5-NDA, and various synthesis intermediates.

Abstract: Thermoplastic elastomeric polymers which contain polyether blocks having tetramethylene ether repeat units, and polyamide blocks, have improved elastomeric properties such as higher unload power and lower tensile set, when the polyether blocks also contain 2-alkyltetramethylene ether repeat units. The polymers are useful as molding resins and for fibers.

Abstract: This invention relates to oxidative methods for controlling the oxidation of a class of compounds, including hydrocarbons, such as cyclohexane for example, alcohols, such as cyclohexanol for example, ketones, such as cyclohexanone for example, and peroxides, such as cyclohexylhydroperoxide for example, to intermediate oxidation products, such as adipic acid for example, by the removing the catalyst, such as cobalt compounds for example, from the oxidation mixture, outside the oxidation zone, after the oxidation has taken place at least partially. The catalyst is at least partially precipitated by following the steps of changing the temperature to be within a specific range, and sequentially reducing the water level to such a degree that causes the catalyst to precipitate. The precipitated catalyst is thereafter preferably filtered from the oxidation mixture and recycled to the oxidation zone.

Abstract: The present invention provides a process for preparing an optical alignment layer for aligning liquid crystals and liquid crystal displays comprising exposing polyimide layers with polarized light. The invention further describes optical alignment layers, liquid crystal displays incorporating optical alignment layers and novel polymer compositions within the class of polyimide, polyamic acids and esters thereof.

Abstract: A binder vehicle composition which is suitable for coating media, containing: A) 20 to 77% by weight of one or more binder vehicles based on oligomeric or polymeric polyol compounds with a hydroxyl number of 80 to 300, an acid number of 0 to 30, a number average molecular weight (Mn) of 500 to 10,000, and a glass transition temperature of −20 to +70° C.; B) 77 to 20% by weight of crosslinking agents based on aliphatic and/or cycloaliphatic polyisocyanates; C) 3 to 20% by weight of oligo- or polyesters, which contain carboxyl groups, as catalyst resins, which have an acid number of 210 to 300 mg KOH/g and a number average molecular weight (Mn) of 420 to 3000; and one or more organic solvents and/or water.

Abstract: The present invention describes a crosslinked aliphatic polyoxaamide polymer and blends thereof that may be used to produce hydrogels, surgical devices such as catheters, molded devices, and the like. The crosslinked aliphatic polyoxaamide of the present invention are formed by crosslinking an aliphatic polyoxaamide having a first divalent repeating unit of formula I: [X—C(O)—C(R1)(R2)—O—(R3)—O—C(R1)(R2)—C(O)—]  I and a second repeating unit selected from the group of formulas consisting of: [—Y—R17—]T,  II [—O—R5—C(O)—]B,  III and ([—O—R9—C(O)]P—O—)LG  XI and combinations thereof, wherein X and Y are selected from the group consisting of —O— and —N(R)—, provided both X and Y are not both —O— and may be blended with a second polymer that is preferably biocompatable.

Abstract: Resinous compositions, especially synthetic resins and most especially arylate polymers, contain 2,3-dicyano-1,4-diaminoanthraquinone as a blue dye. Said compositions are characterized by improved weatherability in comparison with compositions containing other blue dyes.

Abstract: An ester-terminated dimer acid-based polyamide may be blended with a solvent to form a gel. The solvent may be flammable, and a wick may be added to the resulting gel so as to form a candle. Depending on the composition, the candle may be formed into a free standing pillar, or may be better suited to being placed in a container. The solvent may be mineral oil. A solid coating may be placed around the candle, for advantages including to enhance the clarity and/or mechanical stability of the gelled body, and to eliminate the tendency of a gel to have an oily feel and to accept noticeable fingerprints. The ester-terminated dimer acid-based polyamide may also be combined with an active ingredient, such as a fragrance, colorant, insect-repellant, insecticide, bioactive ingredient or the like, to afford a delivery vehicle for the active ingredient.

Abstract: The invention relates to fibers, particularly binder fibers, made from copolyesters and the copolyesters themselves. The copolyesters of the invention are generally formed from a glycol component containing 1,3- or 1,4-cyclohexanedimethanol and ethylene glycol and at least one dicarboxylic acid component. Such copolyesters may be formed into a variety of products, especially binder fibers for nonwoven fabrics, textile and industrial yarns, and composites.

Abstract: Process for producing highly stretchable, amorphous anisotropic melt-forming polymers having recurring units derived from p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, at least one aromatic diacid and at least one aromatic diol and/or hydroxyamine component, at least a portion of which is 4,4′-biphenol, which process comprises incorporating into such polymers recurring units derived from one or more aromatic monomers that provide the polymers with selected meta-linkages wherein each of said recurring units is present in the polymer in specific amounts.

Abstract: The invention relates to a process for preparing hydroxyl- and carboxyl-containing polyesterimide resins, comprising as monomeric components: (A) imide-forming compounds having at least two primary amino groups and/or at least two isocyanate groups or imide-forming compounds having at least one primary amino group and/or at least one isocyanate group and at least one further functional group selected from hydroxyl, carboxyl and/or carboxylic anhydride, (B) polycarboxylic acids and/or their anhydrides and/or their esters and (C) polyols, characterized in that (I) component (A) is reacted with part of component (B) to form a polyimide, (II) the polyimide obtained in accordance with stage (I) is reacted with component (C) to form a polyesterimide, and finally (III) the polyesterimide obtained in accordance with stage (II) is reacted with the remaining part of component (B) to form the Also embraced by the invention is the use of the polyesterimides prepared by the process according to the invention as bi

Abstract: Process for producing highly stretchable, amorphous anisotropic melt-forming polymers consisting essentially of recurring units derived from p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, an aromatic diacid, at least a portion of which comprises 2,6-naphthalene dicarboxylic acid, and an aromatic diol and/or hydroxyamine component, at least a portion of which is 4,4′-biphenol; which comprises incorporating into such polymers recurring units derived from resorcinol, wherein each of said recurring units is present in the polymer in specified amounts.

Abstract: Proposed is a process for sealing the seams of a water vapour permeable lining comprising a laminate of a textile material and a waterproof, but water vapour permeable film in which sections of said laminate with the textile sides facing one another are bonded together along the contours of the material to be lined, after which the lining is dipped in a solution of a hydrophilic polymer in an organic solvent which acts as a swelling agent for the waterproof film of the laminate, followed by evaporation of the solvent. The water vapour permeable film in the laminate preferably is made of a hydrophilic copolyetherester or copolyetheramide, while the hydrophilic polymer soluble in an organic solvent preferably is a copolyetherester.

Abstract: New and improved polyamino acid polymers and derivatized polyamino acid polymers are provided. Relatively high molecular weight poly(succinimides) are prepared by solid phase polymerization of aspartic acid or glutamic acid in the presence of a super phosphoric acid catalyst. The poly(succinimides) may be hydrolyzed to provide biodegradable polyaspartic acid or polyglutamic acid homopolymer having weight average molecular weights ≧70,000. Higher molecular weight, water soluble, cross-liked polyamino acid polymers and gels are also provided. In a preferred embodiment, the poly(succinimides) are derivatized in aqueous media to provide storage stable, substantially linear, biodegradable polyamino acid polymers having pendant hydroxyl, ether, hydroxyalkylaminoalkyl, hydroxyalkoxyalkyl, carboxyl, sulfonoalkyl and/or phosphonoalkyl functionalities. The polymers are useful as chelants in various water treatment applications.

Abstract: The present invention provides a polyester resin having in the molecule at least one quaternary ammonium base represented by the formula (wherein X is halogen and R is alkyl), and a process for its production. The present invention further provides a pigment dispersion containing a pigment and the above polyester resin as resin for dispersion of the pigment, and also provides a coating composition containing the above pigment dispersion.

Abstract: Provided are water-dispersible sulfopolyester compositions having relatively large proportions of pigments and/or fillers. Such compositions are useful as packaging materials and are substantially non-blocking when processed using packaging rolls and are comprised of at least one sulfopolyester as described herein, about 10 to about 75 weight percent of a pigment and/or filler, and a wax.

Abstract: Substrates that are moisture-sensitive and/or corrosion-sensitive, such as electrical components found in fiber optic cables, copper wires, terminal blocks, connections and junctions, are protected from moisture and/or corrosion with a protectant composition that includes a polyamide gelling agent, a gelled solvent, and optionally a bleeding agent. The electrical components are typically contacted with the protective composition to protect the sensitive component from moisture and/or corrosion.

Abstract: A method for producing polybenzazole in the presence of iron(II) ion. The polybenzazole obtained by this method can be formed into a highly strong fiber having a high elastic modulus and a heat resistant film. The method enables economical production of polybenzazole having fine tone and high polymerization degree.