Abstract: A low dielectric polyimide composition comprises an aliphatic anhydride, a long chain diamine, and an ester diamine. A polyimide made of such low dielectric polyimide composition has low polarizability group, thus the dielectric constant of the polyimide is lower. A polyimide made of the low dielectric polyimide composition, a polyimide film using the polyimide, and a copper clad laminate using the polyimide film are also provided.

Abstract: Embodiments of the present disclosure include, a dianhydride monomer, a polyimide, a method of making a dianhydride, a method of making a polyimide, and the like. Embodiments of the present disclosure can be used in membrane-based gas separation applications.

Abstract: A fast-response thermoplastic shape-memory polyimide and a preparation method thereof, related to a polyimide and a preparation method thereof. The present invention aims to solve the problem in high-temperature conditions of slow shape recovery poor stability, and poor mechanical properties of a shape-memory polymer prepared by utilizing an existing method. The structural formula of the polyamide of the present invention is as represented by formula (I). The preparation method is: 1. preparation of a diamine solution; 2. preparation of an anhydride-terminated high molecular weight polyamic acid; 3. preparation of a viscous sol-gel; and, 4. preparation of the thermoplastic shape-memory polyimide. The thermoplastic shape-memory polyimide prepared per the present invention is provided with a very fast shape recovery rate and improved shape-memory effect. The present invention is applicable in the field of polyimide preparation.

Abstract: The present invention relates to a process for preparing a polyaryl ether by reacting components (a1) and (a2) in the presence of a carbonate compound (C) to obtain a salt-containing polymer (SP) comprising the polyaryl ether and a salt (S). After the reaction, the salt (S) is extracted from the salt-containing polymer (SP) to obtain a desalinated polymer (DP) comprising the polyaryl ether.

Abstract: Method of producing super soft PAU core-shell copolymer dispersions is a solvent free process. The products have characteristics of both polyurethane and polyacrylate including non-sticky, having a feeling of touching a peach when touching it by the hand, and improved adhesion, tensile strength, and toughness.

Abstract: A pasty composition for the manufacture of three-dimensional structures or structural elements on the surface of a substrate is formed together with a polymer as an organic component B1, and a powdery material that makes up a proportion of solid in the range of 60 mass % to 95 mass % in the composition, and at least two mutually different solvents C1 and C2 that form a solvent mixture. A first solvent C1 has a boiling temperature here that is lower than the boiling temperature of the further solvent or solvents C2.

Abstract: A method for producing a molded article from a molding material, wherein the molding material contains a fluorine-containing graft chain. Also disclosed is a molding material for a fluorine-containing molded article including a resin material having a graft chain.

Abstract: Methods and systems for the fabrication of composite materials are generally described. Certain inventive methods and systems can be used to fabricate composite materials with few or no defects. According to certain embodiments, composite materials are fabricated without the use of an autoclave. In some embodiments, composite materials are fabricated in low pressure environments.

Abstract: Branched aramid nanofibers (ANFs) can be made by controlled chemical splitting of micro and macroscale aramid fiber by adjusting the reaction media containing aprotic component, protic component and a base. Branched ANFs have uniform size distribution of diameters in the nanoscale regime (below 200 nm) and high yield exceeding 95% of the nanofibers with this diameter. The method affords preparation of branched ANFs with 3-20 branches per one nanofiber and high aspect ratio. Branched ANFs form hydrogel or aerogels with highly porous 3D percolating networks (3DPNs) frameworks that are made into different shapes. Polymers and nanomaterials are impregnated into the 3DPNs through several methods. Gelation of branched ANFs facilitates layer-by-layer deposition in a process described as gelation assisted layer-by-layer deposition (gaLBL). A method of manufacturing battery components including ion conducting membranes, separators, anodes, and cathodes is described.

Abstract: Protein-protein imprinting of silk fibroin is introduced as a rapid, high-fidelity, and/or high-throughput method for the fabrication of nanoscale structures in silk films, through controlled manipulation of heat and/or pressure. High resolution imprinting on conformal surfaces is also demonstrated.

Abstract: Disclosed is a nanosilica-containing thermoplastic hot-melt film having excellent bonding strength, which may be inserted between fabrics to adhere them to each other and may be distributed uniformly on the surfaces of both the fabrics without excessively penetrating into one of the fabrics after melting by heat and pressure during no-sew pressing even if the yarn density of the fabrics is high or low or even if the hole diameter of the fabrics is large or small, thereby increasing the bonding strength between the fabrics.

Abstract: To provide a film excellent in breakage resistance and uniform stretchability, and a method for its production. The film is a single-layer film characterized in that it is made of a blend resin of two kinds of resins both belonging to any one of ETFE, PFA, FEP, ECTFE and PMP, wherein the melt flow rate of the film is at least 6 g/10 min. and less than 20 g/10 min., and ? of the film as measured by a prescribed measurement method is at least 0.99.

Abstract: Implantable biocompatible polymeric medical devices include a substrate with an acid or base-modified surface which is subsequently modified to include click reactive members.

Abstract: The present invention includes a foam composition including a foam precursor and an ortho-phthalate-based compound, wherein a volume ratio of the foam precursor to the ortho-phthalate-based compound is 100:10 to 50, and a flexible thermoelectric device including the foam manufactured thereby.

Abstract: This invention relates to thermoset, thermal insulating panel, pour-in-place and pour-in-place foams having desirable and unexpectedly low thermal conductivity, and to compositions, method and systems which use and/or are used to make such foams comprising: (a) providing thermosetting foam forming component and a blowing agent for forming predominantly closed cells in the foam, wherein the blowing agent comprises: (i) cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzzm(Z)) and cyclopentane, with the HFO-1336mzzm(Z) and cyclopentane in the blowing agent together comprising at least about 50% by weight of the total of all components in the blowing agent and (ii) the weight ratio of HFO-1336mzzm(Z) to cyclopentane in the blowing agent is from about 45:55 to less than 68:32 and (b) forming foam from said provided foamable composition.

Abstract: A composition for foam has at least one elastomer component selected from the group including of elastomeric polymers (A) each of which has a side chain containing a hydrogen-bond cross-linkable moiety having a carbonyl-containing group and/or a nitrogen-containing heterocycle and has a glass-transition point of 25° C. or below, and elastomeric polymers (B) each of which contains a hydrogen-bond cross-linkable moiety and a covalent-bond cross-linking moiety in a side chain and has a glass-transition point of 25° C. or below; an organically modified clay; and a foaming agent, in which an amount of the organically modified clay contained is 20 parts by mass or less relative to 100 parts by mass of the elastomer component.

Abstract: The present invention relates to a process for the treatment of a composition comprising thermoplastics comprising introducing the composition into a reactor under reduction of oxygen content of the atmosphere, heating the composition in the presence of a solvent to liquefy the thermoplastics, separating insoluble fractions and recovering the liquefied thermoplastics which process is conducted in one reactor.

Abstract: A mixture of silicone elastomer and carbonyl iron powder is disclosed, with the silicone elastomer being able to bind the iron powder in weight percents between 75 and 90 while surprising retaining an elastomeric hardness of between about 40 and 70 on the Shore A scale. The isotropic iron powder provides thermal conductivity and magnetism to the silicone elastomer which can be formed during crosslinking into any final shape desired.

Abstract: A process a process of forming a non-halogenated flame retardant (FR) hindered amine light stabilizer (HALS) cross-linker is disclosed. The process includes forming a mixture that includes a first molecule having a hindered amine group. The first molecule corresponds to a functionalized 2,2,6,6-tetramethylpiperidine (TMP) molecule. The process also includes forming the non-halogenated FR HALS cross-linker via a chemical reaction of the first molecule a second molecule. The second molecule includes a phosphoryl group, a chloride group, and at least one cross-linkable (CL) moiety.

Abstract: Disclosed is a phosphorus-containing compound capable of serving as a flame retardant to be used in conjunction with other ingredients to make resin compositions, useful for fabricating such as a prepreg, a resin film, a resin film with copper foil, a laminate or a printed circuit board, having improved one or more properties including glass transition temperature, coefficient of thermal expansion, thermal resistance, flame retardancy, dielectric constant, and dissipation factor. In addition, a method of preparing the phosphorus-containing compound and a resin composition comprising the phosphorus-containing compound are also disclosed.

Abstract: The present invention provides dialkyl phosphorus-containing compounds, namely reactive mono-hydroxyl-functional dialkyl phosphinates in a blend with a phosphate compound, said blend serving as highly efficient reactive flame retardant blend in flexible polyurethane foam. The invention further provides fire-retarded polyurethane compositions comprising said the reaction product of the flame retardant blend with polyol and isocyanate foam forming components.

Abstract: An interlayer comprised of a thermoplastic resin, varying amounts of an epoxidized vegetable oil, and, optionally, a conventional plasticizer. The use of a thermoplastic resin, an epoxidized vegetable (plant) oil, and, optionally, a conventional plasticizer creates synergy allowing the flow of the interlayer to be increased without sacrificing other characteristics typically associated with an increased flow (e.g., increased blocking and creep, exudation, surface roughness formation, decreased mechanical strength, and decreased manufacturing capability). In this regard, the epoxidized vegetable oil acts as a flow improvement agent, resulting in a high-flow interlayer. As a result, a thinner interlayer can be utilized in forming multiple layer panels because the resulting thinner interlayer has improved flow properties.

Abstract: Adhesive tapes and/or methods having a substrate in the form of a flat element comprising a composition containing modified polylactic acid and containing the following components: (1) at least one (co-)polymer based on at least one lactic acid; (2) at least one compound comprising at least one carbodiimide group; (3) optionally at least one compound having at least one epoxide group additionally containing at least one ester group and/or at least one aromatic group; (4) at least one phosphorus-containing compound and (5) optionally additives and/or fillers.

Abstract: A low smoke, zero halogen (LSZH) polymer composition is provided. The LSZH polymer composition includes a polymer resin, and a flame retardant package dispersed within the polymer resin. Less than 25% by weight of the polymer composition is the flame retardant package. The flame retardant package includes an acid source, a carbon source, and an LSZH additive. The LSZH additive includes a polyoxometalate ionic liquid and a synergist carrier. The LSZH polymer composition has a limiting oxygen index of greater than 31%. The LSZH polymer compound is suitable for use in electrical or tele-communication cables.

Abstract: A processing system for producing starch based expanded products useful as packing material for shipping, packaging and insulating applications. Generally, two processing steps for forming materials are involved. In a first step, dense pellets or granules are formed from starch and a plasticizing agent, such as a plasticizing polymer, for example, polyvinyl alcohol. The starch in the pellets is generally formed, for example with an extruder, into a thermoplastic or thermosetting form for further processing. The pellets generally have an individual density of at least about 70 lbs./cubic foot and a small size for convenient delivery for the second processing step. The second process step is based on the expanding of the material from an extruder with water as the expansion agent in which the dwell time in the extruder is short. The process is designed such that a less expensive single screw extruder is suitable for extruding the expanded material.

Abstract: Provided is a rubber composition that can improve fuel efficiency of a tire in low-temperature environments while ensuring adequate wet performance of the tire. The rubber composition contains: a rubber component (A) including at least 50 mass % of at least one isoprene-based rubber selected from the group consisting of natural rubber and synthetic isoprene rubber; a thermoplastic resin (B); and a filler (C) including at least 70 mass % of silica. The thermoplastic resin (B) is contained in an amount of from 5 parts by mass to 40 parts by mass relative to 100 parts by mass of the rubber component (A). The rubber composition has a tan ? at 0° C. of no greater than 0.5, a difference between tan ? at 30° C. and tan ? at 60° C. of no greater than 0.070, and a storage modulus at 1% dynamic strain and 0° C. of no greater than 20 MPa.

Abstract: The present invention relates to a latex composition for dip-molding comprising a mixture of latex pigment and carboxylic acid-modified nitrile based copolymer latex which are two types of latex having Tg different to each other, and a dip-molded article produced therefrom. The dip-molded article according to the present invention does not use sulfur and a vulcanization accelerator and thus has a low risk of allergies and can have excellent elasticity, while maintaining the physical properties such as tensile strength and modulus in the trade-off relationship opposite to each other at the levels equal to or higher than those of the prior art, so that the dip-molded article can be easily applied to industries in need thereof, such as industry of rubber gloves, etc.

Abstract: Provided is a rubber composition which contains a diene rubber and a reinforcing filler, and the diene rubber contains a styrene-butadiene copolymer component including at least one type of styrene-butadiene copolymer and satisfying: (1) the bonded styrene content is from 5 to 50 wt. %; (2) among components obtained by ozone decomposition, a content of a decomposed component V1 containing one 1,2-bonded butadiene-derived unit out of a total of 100 mol % of decomposed components containing styrene-derived units and/or 1,2-bonded butadiene-derived units is not less than 20 mol %; (3) among components obtained by ozone decomposition, a content of a decomposed component S2V1 containing two styrene-derived units and one 1,2-bonded butadiene-derived unit out of a total of 100 mol % of decomposed components containing styrene-derived units and/or 1,2-bonded butadiene-derived units is less than 4 mol %; and (4) a vinyl content of a butadiene moiety is not less than 20% and less 50%.

Abstract: The present invention is directed to packaging laminates for containing a food or pharmaceutical/medical product which includes an exterior film, a multilayer interior film comprising a diisocyanate-scavenging layer and an adhesive-contact layer, and a polyurethane adhesive layer bonding the exterior film to the multilayer interior film. The present invention reduces the amount of any unreacted diisocyanate precursor and primary amines which can migrate to a product in packaging assemblies formed with a polyurethane adhesive. This is achieved when an interior film (commonly known as a sealant film) includes a layer comprising a non-polymeric polyol which is not in direct contact with the polyurethane adhesive. With this approach, the nonpolymeric polyol reacts with any residual diisocyanate and/or primary amines which migrates from the polyurethane adhesive through the laminated assembly and thus, neutralizes any potential undesirable effects of these compounds.

Abstract: Antioxidant-containing expandable resin particles including composite resin particles containing 100 to 400 parts by mass of polystyrene-based resin relative to 100 parts by mass of polypropylene-based resin, and a blowing agent and an antioxidant contained in the composite resin particles, wherein the polypropylene-based resin is abundantly present on the surface of the composite resin particles and poorly present at the center of the particles, and the composite resin particles contain 150 to 1500 ppm of antioxidant.

Abstract: [Summary] The present invention relates to an acrylic processing aid, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same. More specifically, the present invention relates to an acrylic processing aid having a core-shell structure comprising the core and shell comprise a polymer prepared by copolymerizing a methyl methacrylate monomer and an alkyl acrylate monomer having 1 to 18 carbon atoms, and wherein the core comprises the polymer having a weight-average molecular weight ranging from 10,000,000 to 18,000,000 g/mol, a method for preparing the same, and a polyvinyl chloride resin composition comprising the same.

Abstract: A surgical simulator for electrosurgical training and simulation is provided. The surgical simulator includes one or more simulated tissue structures made substantially of a hydrogel comprising a dual interpenetrating network of ionically cross-linked alginate and covalently cross-linked acrylamide. Combinations of different simulated tissue structures define procedural-based models for the practice of various electrosurgical procedures including laparoscopic total mesorectal excision, transanal total mesorectal excision, cholecystectomy and transanal minimally invasive surgery. Methods of making the simulated tissue structures are also provided.

Abstract: The disclosure relates to processes for producing lightweight polyethylene terephthalate articles such as bottles that retain good barrier properties against the permeation of oxygen, carbon dioxide and/or water vapor. The use of relatively small amounts of polytrimethylene furandicarboxylate during the formation of the PET bottles can produce a bottle having the required barrier properties and result in the use of less material.

Abstract: Provided is a composition including (A) 65% to 95% of a polyamide mixture, (B) 7% to 30% of at least one impact modifier or of at least one core-shell entity or of a mixture thereof, and (C) 0 to 5% of at least one additive chosen from stabilizers, dyes, plasticizers, fibers, fillers, processing aids or a mixture thereof. The composition may be used, for example, to produce an article by extruding, injection molding, molding or thermoforming.

Abstract: The present invention relates to a conductive polyamide/polyphenylene ether resin composition and an automotive molded article manufactured therefrom. The conductive polyamide/polyphenylene ether resin composition comprises: (a) a base resin comprising (a-1) polyphenylene ether and (a-2) polyamide; (b) a modified polyolefin based resin; (c) an impact modifier; (d) a compatibilizer; and (e) a conductive filler, and the conductive polyamide/polyphenylene ether resin composition is formed in a domain phase and a matrix phase, wherein the domain phase comprises (a-1) the polyphenylene ether and (c) the impact modifier and the matrix phase comprises (a-2) the polyamide and (b) the modified polyolefin based resin, (e) the conductive filler being dispersed on the domain phase and the matrix phase and the content of the conductive filler dispersed on the matrix phase being higher than that of the conductive filler dispersed on the domain phase.

Abstract: A solvent-free thermosetting filling resin composition is provided. The resin composition comprises the following components: (A) a benzoxazine resin of formula (I), (B) an epoxy resin with an alicyclic skeleton; (C) an epoxy resin hardener; (D) a benzoxazine resin hardener; and (E) a modified filler, wherein, A, B, R, and n in formula (I) are as defined in the specification.

Abstract: Provided is a one-liquid-type thermosetting heat-conductive silicone grease composition which initially has low viscosity but high shape retention, which becomes soft after heat-curing, which has good adhesion to a substrate, and which can be stored at room temperature. Also provided is a method for producing a cured product of said composition. This one-liquid-type thermosetting heat-conductive silicone grease composition comprises, as essential components, (A) an alkenyl-group-containing organopolysiloxane having a viscosity at 25° C. of 50-100,000 mPa·s, (B) a liquid organohydrogenpolysiloxane having a viscosity at 25° C. of 100 mPa·s or less, having 2-10 Si—H groups and an alkoxy group and/or an epoxy group, having a degree of polymerization of 15 or less, and having a polysiloxane backbone including a cyclic structure, (C) a specific photoactive platinum complex curing catalyst, and (D) a heat-conductive filler having a heat conductivity of 10 W/m·° C.

Abstract: Disclosed herein are systems and methods for reducing the particulate matter content of an exhaust gas from a carbon black process.

Abstract: The present invention relates to a composition comprising triethylene glycol disorbate and triethylene glycol monosorbate, at a disorbate to monosorbate weight-to-weight ratio of from 19:1 to 99:1. The composition of the present invention is useful as a low VOC coalescent in coatings formulations.

Abstract: An aqueous coating composition is provided that is preferably substantially free of styrene and structural units derived from styrene. The coating composition includes a resin system that preferably includes a water-dispersible polymer and an emulsion polymerized ethylenically unsaturated monomer component. The resin system is preferably formed using a process that includes emulsion polymerizing the ethylenically unsaturated monomer component in the presence of an aqueous dispersion including the water-dispersible polymer. In certain preferred embodiments, the water-dispersible polymer is a salt of an acid- or anhydride-functional aromatic polyether polymer.

Abstract: This invention relates to a hydrophobic coating material comprising a silane-modified polyorganosiloxane. The invention also relates to a method of making such a coating material, the use of such a coating material, a method for coating a substrate with such a coating material, and a coated substrate obtainable by such a method. In a preferred embodiment, the silane-modified polyorganosiloxane prepared by reacting hydride-containing polyorganosiloxane with vinylsilane; or reacting vinyl-containing polyorganosilane with trimethoxysilane, triethoxysilane or trichlorosilane through hydrosilylation reaction is provided.

Abstract: A coating film exhibiting excellent water and oil repellency is provided. The coating film comprises (a) calcium carbonate having an average particle diameter of 600-9,000 nm, (b) poly(vinyl alcohol), and (c) a copolymer including constituent units of a monomer having a C6 or lower perfiuoroalkyl group.

Abstract: New methods and substrates are provided that include antireflective compositions that comprise one or more thermal acid generators.

Abstract: A particulate coating composition, preferably a powder coating composition, comprising: (i) at least one hardener such as at least one epoxy containing compound, (ii) at least one polyester polymer, (iii) at least one amino alcohol; and (iv) at least one metallic pigment.

Abstract: The invention relates to a process for treating a metal alloy part, characterized in that it comprises the following steps: —producing a stock formulation by mixing, in equal molar parts of silicon, an alcoholic solution of hydrolysed epoxysilane and an alcoholic solution of hydrolysed aminosilane, —mixing the stock formulation with a suspension comprising conductive nanowires in an amount by weight of between 0.1% and 10% relative to the total weight of the stock formulation in order to obtain a dilute formulation, and —depositing the dilute formulation on the part in order to obtain the coating.

Abstract: A coated article having a substrate coated with a layer of a sulfonate-functional coating, and methods of making and using.

Abstract: The present invention relates to a coating composition, a primer coating film, a layered antifouling coating film, a method of producing a substrate with a primer coating film, and a method of producing a substrate with a layered antifouling coating film. The coating composition includes an epoxy resin (A), an amine curing agent (B), a silane coupling agent (C), water (D), and a pigment (E). In the coating composition, the content of the water (D) is 3.5 to 11 parts by weight with respect to 100 parts by weight of non-volatile content in the coating composition, and a pigment volume concentration of the coating composition is 37 to 47%.

Abstract: A coating composition comprising: a) a first expandable graphite compound having a mean particle size in the range of from 300 microns to 1000 microns; b) a second expandable graphite compound having a mean particle size in the range of from 0.5 microns to 250 microns; c) a binder comprising: i) a thermoplastic compound and ii) a thermoset compound; d) a catalyst; and e) a blowing agent, is disclosed.

Abstract: Described is a method of preparing a product comprising an amount of surface modified silver nanowires, the method comprising the following steps: preparing or providing a first surface agent compound having one or more functional groups selected from the group consisting of thiol and amine, for attaching the first surface agent compound to the surface of a silver nanowire, preparing or providing an amount of silver nanowires, attaching said first surface agent compound prepared or provided in step (a) to the surface of said silver nanowires prepared or provided in step (b), so that surface modified silver nanowires result, and optionally (d) adding one or more further constituents and/or conducting one or more further steps so that said product results. Also described are a corresponding product, corresponding uses and a method of coating the surface of an article.

Abstract: The present invention is directed to a water borne coating composition. The composition according to the present invention comprises an emulsified binder, wherein the binder is a polymer selected from the group consisting of polymers prepared by emulsion polymerization of unsaturated vinyl, acrylate and/or methacrylate monomers, alkyd, polyurethane, and epoxy, 0.3% to 10% by weight of a second polymer selected from one or more of the group consisting of poly(vinyl alcohol) and water-soluble copolymers having repeat units of vinyl alcohol, wherein, if the second polymer is poly(vinyl alcohol), at least 85 wt % of the second polymer has a number of repeat units not less than 2,000, and 0% to 15% by weight of a cellulose-based filler, based on the total weight of the composition, wherein the weight ratio of second polymer to binder is in the range of from 1:100 to 1:1. The composition maybe used in various applications to form a decorative coating which has special visual and tactile effect.