Abstract: A method for manufacturing a liquid crystal polyester, comprising: a melt polycondensation step in which 0.001 to 1% by mass of a heterocyclic aromatic compound represented by the following formula (I) is added to a monomer mixture comprising at least one monomer selected from the group consisting of terephthalic acid, a terephthalic acid derivative, 2,6-naphthalenedicarboxylic acid and a 2,6-naphthalenedicarboxylic acid derivative, relative to 100% by mass of the monomer mixture, and then a melt polycondensation is conducted at a temperature of 240 to 300° C. so as to obtain a polymer. (wherein each of X1 and X2 independently represents a methyl group, an ethyl group, a propyl group, a butyl group or a pentyl group, provided that one or more hydrogen atoms on a heterocyclic aromatic ring may each independently be replaced by a halogen atom, an alkyl group or an aryl group).

Abstract: Coating composition containing (A) an acrylate component and (B) zirconia, wherein a mass ratio (B)/(A) of (B) to (A) is from 0.1 to 2.0, (A) contains components (a-1), (a-2) and (a-3), and a content ratio X of component (a-1), a content ratio Y of component (a-2) and content ratio Z of component (a-3) satisfies conditions (1) and (2), and optical member having hard coat film obtained by using coating composition.

Abstract: A thermosetting powder coating composition comprising a binder, wherein 100 parts by weight of the binder comprises (A) from 30 to 70 parts by weight of at least one carboxylic acid functional branched polyester having an acid number of at least 77 mg KOH/g, and (B) from 70 to 30 parts by weight of at least one carboxylic acid functional polyester having an acid number of lower than 50 mg KOH/g. The thermosetting powder composition may be used for coating metallic and non-metallic substrates, it provides outstanding flow and permits to obtain low gloss coatings, provides excellent mechanical properties, and exhibits good solvent resistance and weathering.

Abstract: Certain polyarylene oligomers having improved solubility are useful in forming dielectric material layers in electronics applications.

Abstract: A thermal conductive electromagnetic wave absorbing sheet to be provided includes: a polymer including acrylate ester as a monomer; a metal magnetic oxide; and flame retardant filler subjected to surface treatment. The metal magnetic oxide includes a small-diameter metal magnetic oxide with an average particle diameter of 1 to 10 ?m and a large-diameter metal magnetic oxide with an average particle diameter of 50 to 100 ?m. A mixing ratio between the small-diameter metal magnetic oxide and the large-diameter metal magnetic oxide is in a range of 9:13 to 15:7 in volume ratio. The small-diameter metal magnetic oxide and the large-diameter metal magnetic oxide are contained by 55 to 60 vol % in total in the entire thermal conductive electromagnetic wave absorbing sheet. The flame retardant filler subjected to the surface treatment is contained by 8 to 10 vol % in the entire thermal conductive electromagnetic wave absorbing sheet.

Abstract: Disclosed herein is a composition comprising a substrate with functionalized surface covalently bound to an anti-infective agent, such as a quaternary phosphonium compound with anti-bacterial activity against a broad range of bacteria, methods of synthesizing an anti-infective composition, and its resultant antimicrobial performance.

Abstract: An at least two layer rotomolded article can include a layer A and a layer B. Layer A can include an aliphatic polyester selected from polyhydroxyalkanoate, poly(lactic acid), polycaprolactone, copolyesters and polyesteramides. Layer A can include a polyolefin. Layer A can include a co- or ter-polymer that includes ethylene or styrene monomer, an unsaturated anhydride-containing monomer, epoxide-containing monomer, or carboxylic acid-containing monomer, and a (meth)acrylic ester monomer. Layer B can include a polyolefin and a polyester. Layer B can include a co- or ter-polymer that includes an ethylene or a styrene monomer, an unsaturated anhydride-containing monomer, epoxide-containing monomer, or carboxylic acid-containing monomer, and a (meth)acrylic ester monomer.

Abstract: The present disclosure provides a liquid curing agent composition comprising at least 50% by weight of a polyamine and 0.2% to 10% by weight of dicyandiamide, the amine/epoxy composition and the product from the cured amine/epoxy composition.

Abstract: Disclosed is a monomer containing an N-acylcarbamoyl group and a lactone skeleton. The monomer is exemplified by Formula (1): where Ra is selected typically from hydrogen and C1-C6 alkyl; R1 is, independently in each occurrence, selected typically from halogen and optionally halogenated C1-C6 alkyl; “A” is selected from C1-C6 alkylene, oxygen, sulfur, and non-bond; m represents an integer of 0 to 8; X represents, independently in each occurrence, specific N-acylcarbamoyl; n represents an integer of 1 to 9; and Y represents a C1-C6 divalent organic group.

Abstract: A copolymer comprising a structural unit (I) derived from a phosphonate monomer (1) such as diethyl methacryloyloxymethyl phosphonate, diethyl 2-methacryloyloxyethyl phosphonate and the like, and a structural unit (II) derived from a radical polymerizable monomer (2) such as methacrylic acid, acrylic acid, 8-tricyclo[5.2.1.02,6]decanyl methacrylate, t-butyl methacrylate and the like, wherein the content of phosphorus atoms from the phosphonate monomer (1) is 2.0 to 6.0% by mass relative to the mass of the copolymer. A formed article comprising the copolymer.

Abstract: Anhydrosugar-based monomers prepared from isosorbide, isomannide, and isoidide and resin systems containing these anhydrosugar-based monomers that are partially to fully bio-based, which may produce materials having properties that meet or exceed the properties of similar petroleum derived vinyl ester resins.

Abstract: The present invention relates to: a polymerizable compound (I), wherein Y1 to Y6 are a chemical single bond, —O—C(?O)—, —C(?O)—O— or the like, G1 and G2 are a divalent aliphatic group, Z1 and Z2 are an alkenyl group, Ax is a fused ring group represented by a formula (II), wherein X is —NR3—, an oxygen atom, a sulfur atom or the like, R3 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and D is a substituted or unsubstituted ring having 1 to 20 carbon atoms that includes at least one nitrogen atom, Ay is a hydrogen atom, an alkyl group, A1 is a trivalent aromatic group or the like, A2 and A3 are a divalent aromatic group having 6 to 30 carbon atoms or the like, and Q1 is a hydrogen atom, or an alkyl group having 1 to 6 carbon atoms.

Abstract: A composite comprising polypropylene and a filler, which comprises asphaltenes extracted from Arabian Heavy crude oil. The composite comprises 90-98 wt % of the polypropylene polymer and 2 wt % to less than 10 wt % of the filler, where the weight percentages are based on a total weight of the composite. A melt-blending method is used to prepare the composites. A material comprising the composite is disclosed.

Abstract: The invention relates to a composite formulation comprising a specific mediator additive component (A) of relatively high molecular weight, a filler component (B) and a binder component (C). The composite formulation can be cured to a composite which is especially suitable for the production of moldings.

Abstract: A method for manufacturing a polymer of which structure is exactly controlled is disclosed.

Abstract: The present invention relates to composites comprising rigid-rod polymers and graphene nanoparticles, processes for the preparation thereof, nanocomposite films and fibers comprising such composites and articles containing such nanocomposite films and fibers.

Abstract: The present invention relates to a copolymer including a monomer unit (a) derived from a conjugated diene having not more than 12 carbon atoms and a monomer unit (b) derived from farnesene; a process for producing the copolymer including at least the step of copolymerizing a conjugated diene having not more than 12 carbon atoms with farnesene; a rubber composition including (A) the copolymer, (B) a rubber component and (C) carbon black; a rubber composition including (A) the copolymer, (B) a rubber component and (D) silica; a rubber composition including (A) the copolymer, (B) a rubber component, (C) carbon black and (D) silica; and a tire using the rubber composition at least as a part thereof.

Abstract: Process for the preparation of a vinylidene chloride polymer composite comprising a solid particulate encapsulated in the vinylidene chloride polymer. The process comprises providing a dispersion of a solid particulate material in a liquid phase, said dispersion comprising a RAFT/MADIX agent; providing vinylidene chloride and optionally one or more ethylenically unsaturated monomer copolymerizable therewith to said dispersion; and polymerizing vinylidene chloride and said optionally present one or more ethylenically unsaturated monomer under the control of said RAFT/MADIX agent to form polymer at the surface of said solid particulate material.

Abstract: The present invention is related to a surface control additive for a radiation curing system, the method for its preparation as well as its application. The surface control additive has the following structure: wherein A is wherein m is an integer from 0 to 400, n is an integer from 1 to 500, x is an integer from 0 to 800, p is an integer from 0 to 600, q is an integer from 1 to 800, R4 and R5 are H or CH3 respectively, R6 is H or a linear or a branched alkyl group containing 1-18 carbon atoms or an acyl group containing 2-5 carbon atoms. The surface control additive of the present invention is applied to radiation curing (UV/EB) paint and inks, enables the coatings to maintain non-adhesive and smooth for a long time, and minimizes transferable precipitates from a cured film. In addition, by using different combinations of EO and PO, the surface control additive of the present invention can adapt to a free selection from high-polarity aquosity to a low-polarity aliphatic hydrocarbon solvent system.

Abstract: A polyamide molding material is proposed, which comprises at least one partially crystalline, partially aromatic polyamide (A) and at least one amorphous polyamide (B). The polyamides (A) and (B) together make up 30-60 wt.-% of the polyamide molding material. Furthermore, the polyamide molding material comprises 40-70 wt.-% glass fibers (C) having flat cross section, 0-15 wt.-% of at least one nonhalogenated flame retardant (D), and 0-10 wt.-% further additives (E), the components (A) to (E) adding up to 100 wt.-% of the polyamide molding material. The at least one partially crystalline, partially aromatic polyamide (A) has a glass transition temperature of at least 105° C. The polyamide molding material according to the invention is preferably distinguished in an injection-molding burr formation test in that, at a melt temperature of 320° C. and a tool temperature of 90° C.