Abstract: Provided is a method of preparing a polymer polyol, including steps of: (a) polymerizing a polyol and a monomer in presence of a diluent to prepare a primary particle dispersed liquid; and (b) feeding an additional polyol and monomer into the primary particle dispersed liquid and polymerizing to prepare a secondary particle dispersed liquid.

Abstract: The present invention provides compositions comprising the reaction product of an aliphatic diisocyanate, and a reactive intermediate made from one selected from the group consisting of oxazolidinones, benzoic sulfimides (saccharins), 1H-indole-2,3-diones (isatins), succinamides, N-hydroxysuccinamides, 4-hydroxy-3-methoxybenzaldehydes (vanillins), ?-ketoamides, piperazines, benzofuranones, 3,4-dihydroxycyclobut-3-ene-1,2-diones (squaric acids), squaric acid esters, ?-ketoamides, anilines, and ?-ketoamide, phenols. The aliphatic diisocyanate comprises one selected from the group consisting of isocyanurates, biurets, iminooxadiazine diones, urethanes, uretdiones, carbodiimides, and allophanates. The resulting compositions may be useful in producing coatings, adhesives, sealants, castings, composites and films having durability, color stability, high gloss, and chemical resistance properties similar to those made from polyurethane.

Abstract: An adhesive material which comprises an epoxy component including a first flame retardant and a curing component which includes an adhesion promoter and a second flame retardant The epoxy component and curing component are present in a ratio of about 1:1 and the adhesive is formed when the epoxy component is combined with the curing component.

Abstract: A resin composition is provided. The resin composition comprises the following constituents: (A) epoxy resin; (B) a compound of formula (I), in formula (I), R1 and R2 are independently —H, —CH3, or —C(CH3); and (C) an optional filler.

Abstract: Provided are an epoxy resin composition and a film or a molding material. The epoxy resin composition is an epoxy resin composition including the following components A to D: component A: an epoxy resin having an oxazolidone ring structure in a molecule thereof; component B: an epoxy resin that is liquid at 30° C.; component C: a diblock copolymer having a B-M structure (where M represents a block formed of a homopolymer of methyl methacrylate or a copolymer containing at least 50 wt % of methyl methacrylate, B represents a block that is incompatible with the epoxy resins and the block M, and that has a glass transition temperature Tg of 20° C. or less, and respective blocks represented by B and M are directly bonded to each other or are linked to each other through a linking group); and component D: an amine-based curing agent that is dicyandiamide or a derivative thereof.

Abstract: The invention relates to a polyurethane adhesive composition comprising a resin component (a) and a hardener component (b), wherein the adhesive composition further comprises N-ethyl-2-pyrrolidone and/or methyl-5-(dimethylamino)-2-methyl-5-oxopentanoate as an adhesion promoting agent. Furthermore, the invention relates to a method of use of such a polyurethane adhesive composition, as well as the use of methyl-5-(dimethylamino)-2-methyl-5-oxopentanoate and/or N-ethyl-2-pyrrolidone as an adhesion promoting agent for adhesive compositions, in particular polyurethane based adhesive compositions.

Abstract: A thermoplastic polyester resin composition has an excellent retention stability and is capable of producing a molded article excellent in mechanical properties and heat resistance as well as in long-term hydrolysis resistance; and the molded article. The thermoplastic polyester resin includes 100 parts by weight of a thermoplastic polyester resin (A) and 0.1 to 10 parts by weight of a biphenyl aralkyl-type epoxy resin or cyclopentadiene-type epoxy resin (B) of a specific type.

Abstract: The present invention relates to thermoplastic polyurethanes obtainable or obtained by reaction of at least one polyisocyanate composition, at least one chain extender (KV1) of general formula (I) and one further chain extender (KV2) selected from the group consisting of compounds having at least two isocyanate-reactive groups having a molecular weight of <500 g/mol, and at least one polyol composition. The present invention further relates to a production process for such thermoplastic polyurethanes and to the use of a thermoplastic polyurethane according to the invention or of a thermoplastic polyurethane obtainable or obtained by a process according to the invention for producing extrusion products, films and molded articles.

Abstract: The present invention provides bonding systems comprising a formaldehyde-based (urea-/melamine-/phenol-/resorcinol-formaldehyde or other combination) and/or a polymeric isocyanate resin system composition for bonding ligno-cellulosic materials to form panels and/or shaped products, which contain a resin hardener, also referred to as resin catalyst, characterised in that the hardener is activated by heat.

Abstract: The invention relates to the use of at least one prepolymer in a composition which includes: a matrix of at least one transparent semi-crystalline polyamide, and optionally at least one additive, for improving the crystallisation kinetics and reducing the warping of the composition while preserving or improving the transparency properties thereof as well as the mechanical properties thereof, in comparison with the same composition without a prepolymer, wherein the composition does not contain a nucleating agent.

Abstract: The present invention provides a polyacetal resin composition comprising (A) a polyacetal resin and (B) zinc oxide, wherein the content of oxyalkylene constituent units other than an oxymethylene group in the polyacetal resin (A) is 0.1% by mass or more, and wherein the total surface area of the zinc oxide (B) in the polyacetal resin composition is 0.1 to 40 m2 per 100 g of the polyacetal resin (A); as well as an article molded therefrom.

Abstract: The present invention is concerned with a new macromer for use in polymer polyol dispersions, and also with a process for preparing a new macromer of this kind.

Abstract: The invention provides: a dihydroxynaphthalene condensate which suppresses soft particle generation and is suitably usable for a composition excellent in filterability; and a method for producing the dihydroxynaphthalene condensate. In the method for producing a dihydroxynaphthalene condensate, dihydroxynaphthalene to be used has a sulfur element content of 100 ppm or less in terms of mass among constituent elements. The dihydroxynaphthalene and a condensation agent are condensed in presence of an acid or a base to produce the dihydroxynaphthalene condensate.

Abstract: The present invention relates to a process for producing a diblock copolymer comprising the reaction of at least one aromatic polyester having a melting point in the range from 160° C. to 350° C. and at least one polymer diol having a melting point of less than 100° C. at a temperature of greater than 200° C. to obtain a mixture (G-a); and the reaction of the mixture (G-a) with at least one diisocyanate, wherein the diisocyanate is employed in a molar amount of at least 0.9 based on the alcohol groups of the polymer diols. The present invention further relates to diblock copolymers obtained or obtainable according to such a process and to the use of such diblock copolymers for producing extruded, injection molded and pressed articles and also foams, cable sheaths, hoses, profiles, drive belts, fibers, nonwovens, films, moldings, plugs, housings, damping elements for the electricals industry, automotive industry, mechanical engineering, 3-D printing, medicine and consumer goods.

Abstract: Asphalt compositions for use in roofing products are disclosed that include a virgin asphalt material and a reclaimed asphalt material. The asphalt compositions exhibit properties comparable to conventional oxidized asphalt compositions, yet the asphalt compositions are made without using an oxidation or air blowing process.

Abstract: The present invention relates to a method for preparing superabsorbent polymer fiber and superabsorbent polymer fiber prepared thereby. According to the preparation method of the present invention, superabsorbent polymer in the form of fiber or non-woven fabric that maintains super absorbency function can be prepared.

Abstract: A process for producing a viscous epoxy syrup from at least one liquid multifunctional epoxy, comprising the steps of: adding an initiator selected from the group consisting of electron-poor monoisocyanate, photoinitiator and thermal initiator to at least one liquid multifunctional epoxy; mixing the components; polymerizing the multifunctional epoxy such that the viscosity of the resulting epoxy syrup is at least twice as high, preferably at least four times as high and in particular at least ten times as high as the viscosity of the employed epoxy in the unreacted state makes it possible to produce epoxy adhesives having pressure-sensitive properties.

Abstract: The application relates to an expandable polymeric composition with an enhanced processability, which comprises a polymeric base, an expanding agent, and an additive with a plasticizing effect; said polymeric composition being characterized in that: the molecular mass at the maximum peak Mp of (i) ranges from 130 kDa to 190 kDa and the centrifugal average molecular mass Mz of (i) ranges from 430 kDa to 900 kDa, the difference in the glass-transition temperature (DTg) measured between a vinyl aromatic polymer having a molecular weight distribution (MWD) of (i) and composition of the vinyl aromatic fraction alone of (i), and a polymeric composition consisting of (i) and (iii), ranges from 1° C. to 8° C.

Abstract: The present invention relates to a method for preparing superabsorbent polymer fiber and superabsorbent polymer fiber prepared thereby. According to the preparation method of the present invention, superabsorbent polymer in the form of fiber or non-woven fabric that maintains super absorbency function can be prepared.

Abstract: The present invention relates to an alkoxysilylated epoxy compound, a composite exhibiting good heat resistance properties, low CTE and high glass transition temperature and not requiring a coupling agent, a composition including the same, a cured product formed of the composition, a use of the cured product, and a method of preparing the epoxy compound having alkoxysilyl group. An epoxy compound having an epoxy group and an alkoxysilyl group, a composition including the epoxy compound, a curing agent, a filler and/or a reaction catalyst, a cured product of the composition, and a use of the composition including an electronic part are provided. In a composite and/or cured product, the epoxy composition exhibits improved heat resistance properties, decreased CTE, and increased glass transition temperature or Tg-less. The cured product exhibits good flame retardant properties by the introduction of the alkoxysilyl group.