Abstract: A high-performance multilayer films for packaging and the structure of the multilayer film is as follows: PO2/POY/PO1/POX/PO3 and PO2/POY/PO1/TIE2/PO3. The multilayer film is obtained by multilayer coextrusion and biaxial stretching. The total thickness of the multilayer film is 8 to 100 micrometers; the absolute values of the differences of the solubility parameters between the PO1 layer and the PO2 layer and between the PO2 layer and PO3 layer is greater than 0.5 (J·cm?3)1/2, and the absolute value of the difference of the cohesive energy density is greater than 5 J/cm3.

Abstract: A pump (1) comprising a lubricant reservoir (3) which feeds at least one pumping element (2), the reservoir (3) being delimited by a base (4) in correspondence with which, inside the reservoir (3) there is a rotating spatula (5) featured, equipped with at least one blade (5A) which, by rotating over the base (4), conveys the said lubricant towards an intake (2A) in the said pumping element (2) pushing the said lubricant through a plurality of passages (4A) made in the surface of the said base (4).

Abstract: Polyamide resins including the reaction product of an intimate mixture of at least two monomers selected from HMDA and a diamine; and an organic diacid, wherein sebacic acid is present in the organic diacid in an amount of less than or equal to about 50 mol. %, and associated articles and methods are provided herein.

Abstract: A sizing agent for matrix-resin-reinforcement fibers that simultaneously attains excellent cohesion and abrasion resistance of sized fibers, uniform size application on fiber surface and good bonding between sized fiber and a matrix resin; a synthetic fiber strand sized therewith; and a fiber-reinforced composite material reinforced by the sized fiber strand. The sizing agent contains a polyamide (A), a carbodiimide group-containing compound (B) and water (C), wherein the polyamide (A) has a melt viscosity ranging from 100 to 15,000 mPa·s at 150° C. and the compound (B) has at least two carbodiimide groups per molecule. The polyamide (A) is preferably a water-soluble polyamide.

Abstract: A polyamic acid according to an embodiment is formed by a polymerization reaction of a dianhydride compound, a first diamine compound represented by the following Formula 1, and a second diamine compound, which is different from the first diamine compound.

Abstract: The present invention relates to a process for preparing a granular nylon salt material, wherein an aqueous mixture, comprising at least 65 wt. % of salt components, and at most 35 wt. % of an aqueous medium, the weight percentages (wt. %) being relative to the total weight of the aqueous mixture, is flashed from a pressure vessel via a flash valve into a flash chamber, thereby evaporating the aqueous medium in an amount sufficient to result in a residual moisture content of at most 7.5 wt. %, and forming a granular nylon salt material. The invention also relates to a process for preparing a nylon polymer, comprising direct solid state polymerization of the granular salt material prepared by flash granulation.

Abstract: To additively manufacture a 3D object, a layer of material is deposited onto a receiving surface. Droplets are selective deposited onto first portions of the layer with at least some droplets including at least a first color agent. A gas discharge illuminant selectively induces a first amount of heating in the first portions of the layer substantially greater than a second amount of heating in second portions of the layer omitting the first color agent.

Abstract: The present invention relates to a process for the production of an aqueous solution of a salt of a diamine and a diacid for the manufacture of polyamide.

Abstract: The present invention relates to a method for converting heavy oil by means of high dispersion of asphaltenes, comprising the steps of: preparing a mixture by mixing an amphiphilic additive and the heavy oil; and performing a hydrogenation reaction on the mixture, wherein the amphiphilic additive comprises both a polar group and a nonpolar group.

Abstract: A polyarylene fiber including 0.1-15% based on the weight of the fiber of an aromatic compound or a combination of aromatic compounds wherein each aromatic compound comprises an aromatic core and at least one of the substituents A or B, where A is represented by formula 1 and B is represented by formula 2 Also, a spin dope and a process for manufacturing a polyarylene fiber.

Abstract: A highly sensitive photosensitive resin composition that can afford a cured film having a low stressfulness, a high degree of elongation, and an excellent adhesion to a metal material, copper among others, is provided. A photosensitive resin composition including an alkali-soluble resin having an organic group derived from an aliphatic diamine.

Abstract: A polyetherimide of improved color and processes for preparing the polyetherimide are disclosed.

Abstract: The invention relates to a method for manufacturing a thermoplastic material, in particular a mechanical part made from said material, characterized in that it includes at least one step of injection molding a polyamide composition for a thermoplastic material or a composition of a thermoplastic material, or a step implemented by extrusion of same, said material including a thermoplastic matrix made from at least one thermoplastic polymer.

Abstract: The invention relates to a continuous or repetitive batch process for the hydrogenation of levulinic acid (LA) or esters thereof to at least gamma valerolactone (GVL) in a reactor comprising a feed stream and an outlet stream, in the presence of a solid Ru catalyst, said process comprising (a) pretreating said solid Ru catalyst with a reductant; and (b) reacting levulinic acid with hydrogen and the pretreated solid Ru catalyst obtained in step (a) at a temperature and residence time suitable to form at least GVL, characterized in that the pretreatment is in the presence of a first solvent which comprises water. This process is stable and little or no Ru will leak form the support.

Abstract: The disclosure provides strengthened products, including strengthened fibrous composite products and methods for making and using same and strengthened particulates, such as particulate fertilizer products, and methods for making and using same. The fibrous composite product can include a plurality of fibers and an at least partially cured strengthening resin. The fertilizer composition can include a particulate core that can include a plant nutrient, at least one coating layer of the strengthening resin, and at least one coating layer of a water insoluble material. The strengthening resin can include one or more aldehyde-based resins and one or more crosslinked resins. The crosslinked resin can include one or more polyamines at least partially crosslinked by one or more symmetric crosslinks and can include one or more azetidinium functional groups.

Abstract: The present invention generally relates to methods for resolving water and oil emulsions in the produced fluid of an oil production system comprising adding a reverse emulsion breaker to the produced fluid of the crude oil production system in an amount effective for resolving an oil-in-water emulsion. In particular, these methods for resolving an oil-in-water emulsion can be used in separation processes where the oil and solids in the produced fluid are separated from the produced water in the produced fluid.

Abstract: The present invention also relates to a process for preparing a diamine/dicarboxylic acid salt wherein the dicarboxylic acid comprises an aromatic dicarboxylic acid and is provided in a powder form; the diamine is provided in a liquid form gradually dosed to the dicarboxylic acid powder, while keeping the dicarboxylic acid powder in constant movement; the processing temperature is above 0° C. and below the boiling temperature of the diamine and the melting temperature of the acid and the salt, and the reaction mixture comprises at most 5 wt. % of water. The present invention also relates to an anhydrous diamine/dicarboxylic acid salt obtainable by the process according to invention, or any embodiment thereof as described above.

Abstract: The present invention generally relates to methods for resolving water and oil emulsions in the produced fluid of an oil production system comprising adding a reverse emulsion breaker to the produced fluid of the crude oil production system in an amount effective for resolving an oil-in-water emulsion. In particular, these methods for resolving an oil-in-water emulsion can be used in separation processes where the oil and solids in the produced fluid are separated from the produced water in the produced fluid.

Abstract: The purpose of the present invention is to provide a synthetic fiber which is for use in fabrics having uniform fiber density, permeability and the like, is appropriate for high-density, high-speed weaving, and exhibits excellent weft insertion stability. This synthetic fiber is characterized by having: a fiber density of 200-720 dtex; an average intermediate loading modulus of more than 75 cN/dtex and less than 150 cN/dtex; and a variation coefficient of the intermediate modulus of 5% or less.

Abstract: Poly alkanolamines formed as the reaction products of secondary or tertiary alkanolamines, C8-C24 fatty acids, and shorter chain organic acids are provided, which serve as excellent petroleum/water emulsion breakers for water-in-oil emulsions and reverse oil-in-water emulsions. The polymers are preferably prepared using a reaction mixture of triethanolamine, tall oil fatty acids, and acetic acid.

Abstract: The present invention also relates to a process for preparing a diamine/dicarboxylic acid salt wherein the dicarboxylic acid comprises an aromatic dicarboxylic acid and is provided in a powder form; the diamine is provided in a liquid form gradually dosed to the dicarboxylic acid powder, while keeping the dicarboxylic acid powder in constant movement; the processing temperature is above 0° C. and below the boiling temperature of the diamine and the melting temperature of the acid and the salt, and the reaction mixture comprises at most 5 wt. % of water. The present invention also relates to an anhydrous diamine/dicarboxylic acid salt obtainable by the process according to invention, or any embodiment thereof as described above.

Abstract: The present invention relates to methods, compounds, and compositions for treating or preventing diseases associated with nonsense mutations in an mRNA by administering the compounds or compositions of the present invention. More particularly, the present invention relates to methods, compounds, and compositions for suppressing premature translation termination associated with a nonsense mutation in an mRNA.

Abstract: A composite assembly useful for resisting the penetration of projectiles. The composite assembly comprises a plurality of ballistic fabric layers and a plurality of distinct films. The plurality of distinct films is adjacent the plurality of ballistic fabric layers. Each distinct film of the plurality of distinct films comprises thermoplastic polymer. Each distinct film of the plurality of distinct films has an elongational strength index of at least 800 psi.

Abstract: An economical batchwise production method of polyamide with good quality by the polycondensation in which a diamine component including 70 mol % or more of a xylylenediamine which includes 20 mol % or more of p-xylylenediamine is added to a dicarboxylic acid component in a batchwise reaction tank equipped with a partial condenser. The diamine component is added while maintaining the whole reaction system in fluid state under pressure. The pressure is reduced during the time that the molar ratio is within a specific range while continuing the addition.

Abstract: To provide a method for producing a polyoxamide resin by one-step polymerization without performing a pre-polycondensation step in a solvent, which is necessary in the conventional production of a polyoxamide resin. A method of mixing an oxalic acid diester and a diamine in a pressure-resistant vessel and subjecting the mixture to polymerization under pressure in the presence of an alcohol produced by a polycondensation reaction and then to melt polymerization at a temperature not lower than the melting point of the produced polymer preferably while extracting the alcohol, thereby producing a polyoxamide resin by one-step polymerization without using a solvent except for an alcohol that is produced by polycondensation of raw materials in the production process.

Abstract: A process is described for producing a polyamide from at least one diacid and from at least one diamine. The process can include introducing a lactam and/or an amino acid after a step of concentrating an aqueous solution of a salt of diacid and diamine.

Abstract: A method for producing a polyamine is described that provides excellent safety, a lot of flexibility regarding a variety of its productions, and that can produce a polyamine of high-molecular weight easily and inexpensively. The polyamine includes a combination of units of formula (1) or (2): —(NH—(CH2)m—NH—(CH2)n)—??(1) (in the formula (1), independently in every unit, “m” indicates an integral number of 0 or more and “n” indicates an integral number of 3 or more.) —(NH—Y—NH—Z)—??(2) (in the formula (2), independently in every unit, “Y” and “Z” are the same as or different from each other, and they indicate substituted or unsubstituted groups including unsaturated aliphatic, cyclic aliphatic or aromatic hydrocarbon radicals that can include hetero atoms.).

Abstract: Disclosed herein is a polyamide-imide copolymer film, comprising a copolymer resin in which a unit structure derived from TFDB (2,2?-bistrifluoromethyl-4,4?-biphenyl diamine), a unit structure derived from 6FDA (4,4?-(hexa-fluoroisopropylidene)diphthalic anhydride), a unit structure derived from BPDA (3,3?,4,4?-biphenyltetracarboxylic dianhydride) and a unit structure derived from TPC (terephthaloyl chloride or 1,4-benzenedicarbonyl chloride) are copolymerized, wherein the copolymer resin has a weight average molecular weight of 10,000˜400,000.

Abstract: The invention relates to a copolyamide comprising at least two different units corresponding to the following general formulation: A/X.T A is chosen from a unit obtained from an amino acid, a unit obtained from a lactam and a unit corresponding to the formula (Ca diamine).(Cb diacid), with a representing the number of carbon atoms of the diamine and b representing the number of carbon atoms of the diacid, a and b each being between 4 and 36, advantageously between 9 and 18, X.

Abstract: A thermosetting oligomer or thermosetting polymer is provided. The thermosetting oligomer or thermosetting polymer contains repeating units, each of which has at least one thermosetting functional group in the side chain and is represented by Formula 1: where repeating units include X1, A1, and Y1 subunits, sidechain units include linking unit L and thermosetting functional group Z, and n is an integer from 1 to 4. The thermosetting oligomer or thermosetting polymer has a low coefficient of thermal expansion and high or no glass transition temperature, stiffness, processability, heat resistance and mechanical properties. The thermosetting oligomer or thermosetting polymer is highly soluble, wettable and dimensionally stable and is suitable for use in films, prepregs and printed circuit boards. Further provided are a thermosetting resin composition including the thermosetting oligomer or thermosetting polymer and a printed circuit board using the composition.

Abstract: A shock absorber is prepared from a material formed from branched molecules comprising associative groups. The branched molecules each contains at least bifunctional fragments and at least trifunctional fragments joined together by ester or thioester bridges alone or in combination with amide or urea bridges.

Abstract: This is to provide a polyamide resin which can sufficiently ensure all of a relative viscosity ?r (high degree of polymerization), moldable temperature range estimated from a temperature difference (Td?Tm), heat resistance estimated from a melting point Tm, melt moldability estimated from a temperature difference (Tm?Tc), and low water absorbability as compared with the conventional polyoxamide resin. This is a polyamide resin comprising a dicarboxylic acid-derived unit and a diamine-derived unit being bonded, wherein the above-mentioned dicarboxylic acid contains oxalic acid (Compound A), and the above-mentioned diamine contains 1,6-hexanediamine (Compound B) and 2-methyl-1,5-pentanediamine (Compound C).

Abstract: A monofilament made from a polyamide composition including at least 70 wt. % of a polyamide resulting from the condensation of: an aliphatic diamine having 4 to 18 carbon atoms, together with a (cyclo)aliphatic diacid having 10 to 18 carbon atoms, and with an aliphatic monocarboxylic acid having 2 to 12 carbon atoms as a chain stopping agent. Also, a process for making this monofilament.

Abstract: The present disclosure relates generally to a light emitting diode assembly and a thermal control blanket. The light emitting diode assembly and the thermal control blanket have advantageous reflective and thermal properties.

Abstract: The present invention relates to the recovery of nylon from co-mingled materials (e.g., carpet) with reduced or eliminated ash (e.g., calcium carbonate) contamination.

Abstract: Methods for the recycling of carpet are disclosed that produce clean face fiber suitable for industrial use. The methods allow the recovery of face fiber material, for example a polyester or a polyamide, from carpets that includes a face fiber material and a backing material, and include the steps of heating the carpet to a temperature lower than the melting point of the face fiber material, but higher than the initial thermal decomposition temperature of the backing material, for a time and at a temperature sufficient to thermally decompose, pyrolyze, or oxidize at least a portion of the backing material, rendering the backing material friable, that is more friable than the untreated backing; and applying mechanical force to the carpet so as to liberate the friable backing material from the face fiber material.

Abstract: Provided is a polyether polyamide elastomer including a diamine constituent unit derived from a specified polyether diamine compound and a xylylenediamine and a dicarboxylic acid constituent unit derived from an ?,?-linear aliphatic dicarboxylic acid having a carbon number of from 8 to 20.

Abstract: A polyamide modified by a compound including a sulfonate group, as well as a method for preparing the polyamide and to articles obtained from said modified polyamide are described. A modified polyamide obtained from a mono-functional aromatic sulfonate compound is also described.

Abstract: In a conductive film forming method using photo sintering, a conductive film having low electric resistance is easily formed. The conductive film forming method is a method in which a conductive film is formed using photo sintering. This method includes the steps of forming a layer made of a sintering promoter on a substrate, forming a liquid film made of a copper particulate dispersion on the layer of the sintering promoter, drying the liquid film to form a copper particulate layer, and subjecting the copper particulate layer to photo sintering. The sintering promoter is a compound which removes copper oxide from metallic copper. Thereby, the sintering promoter removes a surface oxide film of copper particulates in photo sintering.

Abstract: Processes that make nitrogen-containing compounds include converting succinic acid (SA) or monoammonium succinate (MAS) derived from a diammonium succinate (DAS)- or MAS-containing fermentation broth to produce such compounds including diaminobutane (DAB), succinic dinitrile (SDN), succinic amino nitrile (SAN), succinamide (DAM), and related polymers.

Abstract: A polyamide resin composed of constitutional units derived from a diamine component 70 mol % or more of which is derived from p-xylylenediamine and constitutional unit derived from a dicarboxylic acid 70 mol % or more of which is derived from an aliphatic dicarboxylic acid having 6 to 18 carbon atoms. The polyamide resin has a number average molecular weight (Mn) of 10,000 to 50,000 and a degree of dispersion (weight average molecular weight/number average molecular weight=Mw/Mn) satisfying the following formula (1): 1.5?(Mw/Mn)?6.0, wherein Mw and Mn are determined by gel permeation chromatography (GPC).

Abstract: The present invention relates to semiaromatic and semicrystalline thermoplastic polyimides obtained by polymerization of at least one aromatic compound comprising two anhydride functions and/or carboxylic acid and/or ester derivatives thereof and a diamine comprising between 13 and 22 carbon atoms. These polyimides may be converted into plastic articles by various methods, such as injection-molding.

Abstract: The production of polyamide 1010 polymer particles, in which polyamide 1010 resin, a different polymer B and an organic solvent are dissolved and mixed and thereupon an emulsion is formed within a system for phase separation into two phases, being a solution phase having the polyamide 1010 resin as the main component and a solution phase having the polymer B as the main component, and thereafter a poor solvent of the polyamide 1010 resin is brought into contact therewith to precipitate the polyamide 1010 resin, wherein the formation of the emulsion is carried out at a temperature of 100° C. or higher, thereby making it possible to obtain highly crystalline polyamide 1010 particles having a high sphericity.

Abstract: A copolyamide resin for molding including a diamine component which includes two or more diamines and a dicarboxylic acid component. The diamine component includes 70 mol % or more of a xylylenediamine which includes 20 mol % or more of p-xylylenediamine and the dicarboxylic acid component includes 70 mol % or more of a straight-chain aliphatic dicarboxylic acid having 6 to 18 carbon atoms. The copolyamide resin contains particles having a major diameter of 50 ?m or more in an amount of 1000 particles/g or less, the particles being made of a polyamide having a melting point higher than that of the copolyamide resin by 20° C. or more when measured by a differential scanning calorimetry. The copolyamide resin has very uniform and stable properties and is excellent in any of mechanical properties, heat resistance, chemical and physical properties, and molding properties. An efficient production method of the copolyamide resin, its resin composition, and its molded article are also described.

Abstract: A polyamide block copolymer that includes a first segment including a repeating unit represented by Chemical Formula 1, a repeating unit represented by Chemical Formula 2, or a combination thereof; and a second segment including a repeating unit represented by Chemical Formula 3. The variables R1 to R15, and n1 to n8 are defined herein.

Abstract: The invention relates to a process for producing a shaped article having excellent mechanical properties, said article comprising a block copolymer PAX.Y/PE comprising polyamide (PA) blocks alternating with polyether (PE) blocks, prepared from homopolyamide blocks PAX.Y by polycondenstation of linear aliphatic diamines where PAX.Y is selected from the group consisting of PA 10,12; PA 6,18; PA 10,14; and PA 12.12, reacted with polyether PE blocks in the presence of a catalyst to produce a block copolymer PAX.Y/PE, wherein said PE blocks are either PE diols, or PE blocks comprising NH2 ends. The articles formed are either a fabric, film, sheet, rod, pipe, injection-molded component, or a shoe sole; the copolymer PAX.Y/PE has an improved flexural modulus of at least 300 MPa greater than a copolymer polyamide 12/polytetrametylene with the same size of PA block and with the same size of PE block respectively.

Abstract: Disclosed are salt compositions of lysinol and dicarboxylic acids; and lysinol derived polymers including polyamide, polyimide, polyurea, cross-linked polyurea comprising urethane linkages, polyurea foams, cross-linked polyurea foams, and lysinol-epoxy thermoset.

Abstract: The invention relates to a process for preparing an amine adduct, in which a polyamine component (A), a polyester component (B) and a hydrocarbon component (C) are reacted. The amine adduct is of particularly good suitability as a wetting agent and dispersant, especially for coatings and plastics applications.

Abstract: The disclosures herein relate to a process for making polyamides from stoichiometrically imbalanced mixtures. This process includes the production and subsequent use of solidified stoichiometrically imbalanced components comprising mixtures of diacids and diamines. This stoichiometric imbalance is defined by a component molar ratio equal to moles of dicarboxylic acid units divided by moles of diamine units; and wherein this molar ratio is different from unity.

Abstract: The invention described herein is directed towards spin-on carbon materials comprising polyamic acid compositions and a crosslinker in a solvent system. The materials are useful in trilayer photolithography processes. Films made with the inventive compositions are not soluble in solvents commonly used in lithographic materials, such as, but not limited to PGME, PGMEA, and cyclohexanone. However, the films can be dissolved in developers commonly used in photolithography. In one embodiment, the films can be heated at high temperatures to improve the thermal stability for high temperature processing. Regardless of the embodiment, the material can be applied to a flat/planar or patterned surface. Advantageously, the material exhibits a wiggling resistance during pattern transfer to silicon substrate using fluorocarbon etch.