Abstract: A vehicle bond filler formulation is provided that includes a part A having curable resin and a monomer reactive diluent. A part B storage-separate, cure initiator package contains a free-radical cure initiator. At least one color changing dye adapted to change color upon mixing the part A and the part B and within ±5 minutes of cure of the curable resin to a sandable condition is present in either the part A or a separate part C, a guide coat colorant, or a combination thereof. A process of for repairing a vehicle body is also provided that includes mixing a part A containing the at least one color changing dye with the part B to form an internal guide coat mixture applied to a substrate of the vehicle body in need of repair. The mixture cures causing the color changing dye to the terminal change color within ±5 minutes of cure of the curable resin to a sandable condition.

Abstract: A conductive polymeric composition includes, based on a total weight of the conductive polymeric composition, 0.1 wt % to 10 wt % of carbon nanotubes, 0.2 wt % to 4 wt % of a first component, 0.1 wt % to 4 wt % of a second component made by esterification of a C16-C30 fatty acid with a polyol compound, and the balance being a polymeric component. When the first component is a first polymer obtained from polycondensation of an aromatic diacid compound and an aliphatic glycol compound, the polymeric component is a polyester. When the first component is a second polymer obtained from polycondensation of a lactam compound, a diamine compound and a dicarboxylic acid compound, the polymeric component is a polyamide.

Abstract: A dispersion body having excellent heat ray shielding properties and long-term high temperature stability, and a dispersion liquid for producing the dispersion body, wherein the dispersion liquid contains liquid medium, absorbing fine particles dispersed in the medium, and a phosphite ester compound, the absorbing fine particles are one or more kinds of oxide fine particles selected from tungsten oxide fine particles represented by a general formula WyOz, and the phosphite ester compound is a phosphite ester compound represented by the following predetermined structural formula, and an addition amount of the phosphite ester compound is more than 500 parts by mass and 50000 parts by mass or less with respect to 100 parts by mass of the absorbing fine particles.

Abstract: A composite molded article obtained by laser welding molded article composed of a polyester resin composition having a crystallinity of 15% or more as calculated with fast scanning calorimetry by a calculation method, wherein the calculation method includes using fast scanning calorimetry, the polyester resin composition is heated from 30° C. to 260° C. at 10000° C./second, then maintained at 260° C. for 0.1 second, then cooled to 80° C. at 5000° C./second, maintained at 80° C. for 0.1 second, then cooled to ?70° C. at 5000° C./second, and then heated to 260° C. at 1000° C./second, after which the curve obtained is used to calculate the crystallinity.

Abstract: A resin composition including: a magnetic fluid that includes magnetic particles, a dispersant, and a dispersion medium; and a resin or precursor thereof that includes, in a molecule thereof, at least one partial structure selected from the group consisting of a diene skeleton, a silicone skeleton, a urethane skeleton, a 4- to 7-membered ring lactone skeleton, an alkyl group having from 6 to 30 carbon atoms and an alkylene group having from 6 to 30 carbon atoms, a production method thereof, a resin composition molded body obtained by using the resin composition, and a production method thereof.

Abstract: A bonding material including a phenoxy resin thermoplastic component, and a carbon black filler component. The carbon black filler component is present in an amount greater than 1 wt. %. The carbon black filler converts the phenoxy resin thermoplastic component from a material that transmits infra-red (IR) wavelengths to a material that absorbs a substantial portion of infra-red (IR) wavelengths.

Abstract: A liquid crystal polyester resin composition includes: (A) liquid crystal polyester; (B) talc; and (C) mica, in which the total amount ((B)+(C)) of the (B) talc and the (C) mica is in a range of 5 parts by mass to 100 parts by mass with respect to 100 parts by mass of the (A) liquid crystal polyester, and a mass ratio ((B)/(C)) of a mass of the (B) talc to a mass of the (C) mica is in a range of 9/1 to 1/9.

Abstract: A magnetic fiber comprises a core comprising a spinel ferrite of formula Me1-xMxFeyO4, wherein Me is Mg, Mn, Fe, Co, Ni, Cu, Zn, or a combination thereof, x=0 to 0.25, and y=1.5 to 2.5, wherein the core is solid or at least partially hollow; and a shell at least partially surrounding the core, and comprising a Me1-xMxFey alloy, wherein when the core is solid with Me=Ni and x=0 the magnetic fiber has a diameter of greater than 0.3 micrometer. A magneto-dielectric material having a magnetic loss tangent of less than or equal to 0.03 at 1 GHz comprises a polymer matrix; and a plurality of the magnetic fibers.

Abstract: The invention relates to a method for producing a cured composition which has at least one oxazolidinone ring and at least one isocyanurate ring and is cross-linked by the same, starting from a liquid reactive mixture which, based on the total weight thereof, contains at least one epoxy resin, at least one polyisocyanate, at least one polyol, and at least one catalyst composition. The invention further relates to the cured composition obtainable thereby.

Abstract: A method to form a phase change material (PCM). The method includes preparing a polymer solution by mixing an amount of a polymer in a solvent and mixing the polymer solution with an UiO-66 metal-organic framework (MOF) to form a composite. The polymer is a polyethylene glycol (PEG). The method further includes subjecting the composite to ultrasonic agitation and evaporating the solvent from the composite to form the PCM. After the evaporation of the solvent, particles of the PCM exhibit rounded octahedral structures.

Abstract: A liquid crystal polyester resin composition containing 100 parts by mass of a liquid crystal polyester resin; and at least 10 parts by mass and at most 100 parts by mass of glass components; wherein the glass components contain glass fibers having a length of more than 30 ?m and glass fine powders having a length of at least 4 ?m and at most 30 ?m; the number-average fiber length of the glass fibers is at least 50 ?m and at most 200 ?m; and the content of the fine powders is at least 50% and at most 95% relative to a total number of the glass components.

Abstract: A composition for fused filament fabrication may include polylactic acid resin and talc. The composition may range from 50% by weight to 99% by weight polylactic acid resin, and from 7% by weight to 40% by weight talc. The composition may be configured as filaments or pellets adapted to be used in a fused filament fabrication process. A method for generating a resin-based structure may include providing a resin source that may include polylactic acid resin and talc. The resin source may include from 50% by weight to 99% by weight polylactic acid resin, and from 7% by weight to 40% by weight talc. The method may also include heating the resin source to a temperature greater than the melting temperature for semi-crystalline resins or significantly greater than glass transition temperature for amorphous resins, and depositing the heated resin source in a layered manner to form the resin-based structure.

Abstract: The present invention generally relates a polymer-metal junction comprising PEEK-PEmEK copolymers compositions, in contact with a metal substrate, wherein the PEEK-PEmEK copolymer having RPEEK and RPEmEK repeat units in a molar ratio RPEEK/RPEmEK ranging from 95/5 to 45/55. The present invention also relates to shaped articles including the polymer-metal junction, and methods of making the polymer-metal junctions.

Abstract: This disclosure provides a nonaqueous coolant composition excellent in insulation property, heat transfer characteristic, and hydrolysis resistance. The embodiment is a coolant composition that includes at least one ketone compound having 6 or more carbon atoms as a nonaqueous base and is substantially free of water.

Abstract: Embodiments of the present disclosure include laser transmissive compositions and related methods. The laser transmissive compositions may include one or more of the following components: (a) a polyester compound; (b) a filler; (c) a non-aromatic organic nucleating agent; (d) at least one of a chain extender and a branching agent, wherein the chain extender/branching agent includes two or more reactive groups attached thereto; (e) at least one heat stabilizer; (f) at least one process stabilizer; (g) at least one lubricant; and (h) one or more further additives.

Abstract: A thermally activated delayed fluorescent (TADF) deep-red light polymer material is provided, and includes a main chain to polymerize a TADF molecular structure, and a side chain to connect with an alkyl chain. The TADF polymer material of this structure has excellent TADF characteristics and solubility. Further, the material can be used to fabricate an electroluminescent device by a solution processing, and a good device effect can be obtained.

Abstract: The present application relates to a curable composition. The present application provides a curable composition comprising an internal heat source for generating heat by application of an alternate-current magnetic field from the outside, together with a phthalonitrile compound and a curing agent therefor. The curable composition can precisely control the heat generated from the internal heat source according to the strength of the alternate-current magnetic field to precisely control curing conditions of the curable composition.

Abstract: Polymer matrix composite comprising a porous polymeric network; and a plurality of thermally conductive particles distributed within the polymeric network structure; wherein the thermally conductive particles are present in a range from 15 to 99 weight percent, based on the total weight of the thermally conductive particles and the polymer (excluding the solvent); and wherein the polymer matrix composite has a density of at least 0.3 g/cm3; and methods for making the same. The polymer matrix composites are useful, for example, in electronic devices.

Abstract: This invention relates to a high molecular weight nylon powder composition for 3D printing, its preparation method and use. The composition comprises: 100 parts by weight of high-viscosity nylon powder, 1-5 parts by weight of a flow agent, and 0.1-1 parts by weight of an antioxidant; the high-viscosity nylon powder is one or more selected from nylon 6, nylon 66, nylon 11, nylon 12, nylon 612 and nylon 610; or the powder composition is obtained via polymerization reaction of the raw materials comprising the following components, based on the weight parts of lactam monomers or amide monomers: 100 parts by weight of lactam monomers or amide monomers, 0.005-1 parts by weight of a catalyst, and 0.1-1 parts by weight of an antioxidant.

Abstract: A polyimide precursor composition according to the present invention enables alleviation of thermal expansion-contraction properties of a polyimide film resultingly prepared, by means of using siloxane-based diamine having a particular structure and a solvent having a positive partition coefficient. And the present invention enables excellent transparency, heat resistance, mechanical strength and flexibility and effective reduction of residual stress, and thus can be used in various fields such as a substrate for a device, a cover substrate for a display, an optical film, an integrated circuit (IC) package, an adhesive film, a multi-layer flexible printed circuit (FPC), tape, a touch panel and a protective film for an optical disk.