145 results about "Cyanate compound" patented technology

The invention belongs to the technical field of coatings, and particularly relates to a powder coating for a coastal photovoltaic field steel structure as well as a preparation method and application of the powder coating. The powder coating for the coastal photovoltaic field steel structure, provided by the invention, is prepared from the following components in parts by mass: 100 parts of an organosiloxane modified polyester polymer, 5 to 15 parts of a cyanate ester compound, 0.2 to 0.5 part of a low-temperature accelerant, 1 to 4 parts of polyacrylic resin, 1 to 4 parts of an anti-scratching agent, 1 to 2 parts of a brightening agent, 30 to 51 parts of pigment filler, 0.2 to 1.0 part of a degassing agent, 0.2 to 1.0 part of an ultraviolet-resistant absorbent and 0.1 to 0.5 part of a flowing agent. Organosiloxane is introduced into polyester, so that a large number of Si-O-Si bonds are introduced, breakage and degradation of main bonds can be prevented, bond energy is increased, and the coating has excellent thermal stability. The organosiloxane modified polyester polymer and the cyanate ester compound are subjected to a cross-linking reaction to form an anti-corrosion coating to resist corrosion of salt in seawater.

The present disclosure provides: a method for obtaining a cured body containing an epoxy compound and a resin having an aromatic vinyl group as a functional group; an epoxy resin-based composition and a cured body thereof, having improved low dielectric performance; and an electrically insulating material and the like. The present disclosure provides: a composition that contains an epoxy compound, a resin having an aromatic vinyl group as a functional group, and an active vinyl compound; a cured body of the composition; and an electrically insulating material. The resin having an aromatic vinyl group as a functional group is preferably an olefin-aromatic vinyl compound-aromatic polyene copolymer. The active vinyl compound is preferably one or more compounds selected from the group consisting of a maleimide compound and a cyanate compound.

Provided is a composition which contains a base generator and a polymerizable compound. The base generator contains a salt of a cation and an anion. The cation contains a carbonyl group and a partial structure comprising: a carbon atom; a nitrogen atom N1 bonded via a single bond to the carbon atom; and a nitrogen atom N2 bonded via a double bond to the carbon atom. The polymerizable compound contains a polyiso(thio)cyanate compound and a polythiol compound.

To provide a method for manufacturing a laminated sheet which is excellent in interlayer adhesion between a fiber layer and a resin layer, and a method for manufacturing a laminate using the laminated sheet which is obtained by the method for manufacturing the laminated sheet.SOLUTION: A method for manufacturing a laminated sheet having a resin layer (1A) and a fiber layer in this order on at least one surface of a thermoplastic resin base material includes the following steps 1 to 3. Step 1: a step of coating a coating liquid for forming the resin layer (1A) containing a resin and a block isocyanate compound onto at least one surface of the thermoplastic resin base material, drying the coating liquid at a specific temperature, and forming a resin layer (1a). Step 2: a step of coating a coating liquid for forming a fiber layer containing a resin and a fine fibrous cellulose having a fiber width of 1 nm or more and 1,000 nm or less onto a surface opposite to the thermoplastic resin base material of the resin layer (1a), drying the coating liquid at a specific temperature, and forming a fiber layer. Step 3: heating a sheet where the fiber layer is formed at a specific temperature, and forming the resin layer (1A).SELECTED DRAWING: Figure 2

It is an object of the present invention to provide a monomer which can provide a cured product having both high toughness and rigidity. The present invention is a (meth)acrylate (D) which is a reaction product of a thiol compound (A) having two or more mercapto groups; an iso(thio)cyanate compound (B) having two or more iso(thio)cyanato groups; and a hydroxy (meth)acrylate compound (C) having one or more polymerizable groups.

A formulation comprising: at least one isocyanate compound; at least one bio-oil-based compound selected from the group consisting of triglyceride (TG)-based bio-oil compounds and esterified bio-based fatty acid compounds; optionally, a catalyst compound for promoting urea / polyurethane formation; the ratio of the TG-based bio-oil compound to the esterified fatty acid compound is from 60 / 40 to 0 / 100, preferably from 55 / 45 to 0 / 100, more preferably from 50 / 50 to 40 / 60, most preferably from 45 / 55 to 50 / 50, and the at least one isocyanate compound (a) is present in an amount of at least 90 wt%, based on 100 wt% of the total formulation.

To provide a polyacetal resin composition which can further improve physical properties such as mechanical strength and hot water resistance, while using a modified cross-section glass fiber, when being colored by black, particularly, carbon black.SOLUTION: A polyacetal resin composition contains, with respect to 100 pts.mass of (A) a polyacetal resin, 1 to 100 pts.mass of (B) a modified cross-section glass fiber which is surface-treated with (B1) at least one selected from at least one isocyanate compound selected from the group consisting of a blocked isocyanate compound and a polyurethane resin, an amino silane coupling agent, an epoxy resin, and an acid copolymer, and (B2) a boric acid compound, and 0.001 to 3 pts.mass of (C) at least one binder selected from the group consisting of an organometallic compound containing a metal selected from Sn, Zn and PB, a boric acid compound and a quaternary onium salt compound.SELECTED DRAWING: None

The present invention addresses the problem of providing a solvent-type base coating material composition that can achieve both reduction in energy load and storage stability during formation of a coating film while maintaining the appearance of the coating film.　This solvent-type base coating material composition comprises: (A) a pigment containing one or more kinds selected from the group consisting of coloring pigments and flake pigments; (B1) a specific hydroxy group-containing acrylic resin having a weight average molecular weight of 10,000-20,000; (B2) a hydroxy group-containing acrylic resin having a weight average molecular weight of 3,000-7,500; (C) a blocked isocyanate compound; (E) a melamine resin containing a fully alkylated melamine resin; (D) polymer crosslinked fine particles insoluble and stably dispersed in a solution of the hydroxy group-containing acrylic resin (B1); (F) an acid catalyst having no counterion; and (G) an amine compound containing a secondary amine compound. The solid content is 35% by mass or more. When a viscosity V1 is measured at 23°C under a shear rate of 0.1 / sec using a cone-plate viscometer, followed by 30 seconds of shearing with the shear rate changed from 0.1 / sec to 25,000 / sec and then one second of shearing with the shear rate returned to 0.1 / sec, and a viscosity V2 is subsequently measured, the viscosity recovery rate V2 / V1, which is the ratio of V2 to V1, is 90% or more.

Disclosed is a multi-layer synthetic leather product comprising (A) a silicone based top layer; and (B) a polyurethane based skin layer which is formed with a polyurethane dispersion formulation, wherein the polyurethane dispersion formulation is formed by blending water, at least one chain extender and an isocyanate-terminated prepolymer which is the reaction product of a mixture comprising: at least one isocyanate compound, at least one polyol compound, and from 2.5 wt % to 15 wt %, based on the weight of the prepolymer, of at least one allyl polyether monoalcohol. Due to the formation of chemical bonds between the top layer and the skin layer, the synthetic leather product exhibits superior detachment resistance, mechanical strength, easy to clean capability and hand feeling.

The problem of the present invention can be solved by an adhesive which contains a specific acrylic copolymer (A), an isocyanate compound (B), and a metal chelate (C), and which satisfies all of the following (1)-(3) after curing. (1) 3.0 * 10 < 4 > Pad; g '(-20) lt; 4.0 * 10 < 5 > Pa, (2) 5lt; g '(-20) / G' (200) lt; 17, (3) 2lt; tan delta (-20) / tan delta (200) lt; 6.5); wherein in the formula, G '(-20) refers to the storage modulus at-20 DEG C and 1 Hz, G' (200) refers to the storage modulus at 200 DEG C and 1 Hz, tan delta (-20) refers to the loss tangent at-20 DEG C and 1 Hz, and tan delta (200) refers to the loss tangent at 200 DEG C and 1 Hz.

The present invention relates to a method for preparing 2,4-disubstituted thiophene-3-sulfonyl isocyanate compounds having formula (I), wherein the method comprises reacting a compound having formula (II) with phosgene in the presence of a catalyst and a mixture of a nonpolar solvent and an organosulfur cosolvent, and optionally in the presence of a base.

The present invention provides a curable composition, a cured product, a prepreg, a circuit substrate, a build-up film, a semiconductor sealing material, and a semiconductor device. The present invention aims to provide a curable composition and a cured product thereof which exhibit a low dielectric loss tangent and a low moisture absorption rate upon curing. The present invention is a curable composition characterized by containing a polymaleimide compound (A) and a cyanate ester compound (B), the polymaleimide compound (A) containing a monocyclic or condensed polycyclic aromatic group to which two or more straight-chain or branched alkylene groups are attached.

A polyisocyanate composition having at least one isocyanate compound selected from an aliphatic isocyanate and an alicyclic isocyanate as a skeleton, wherein an average value of a total number of isocyanate groups blocked with a blocking agent and not blocked with a blocking agent per polyisocyanate molecule is 2 or more, and among the isocyanate groups in the polyisocyanate composition, 1 mol % or more and 99 mol % or less are blocked with a blocking agent, and the like.

The present invention provides an active energy ray-curable resin composition capable of forming a film having high adhesion to a substrate, excellent weather resistance, and excellent tensile elongation properties at high temperatures, as well as a cured product thereof and a protective film. The present invention relates to an active energy ray-curable resin composition containing a urethane acrylate, the urethane acrylate having structural units derived from an alicyclic isocyanate compound, an aromatic polyol compound, a polycarbonate diol, and a (meth)acrylic compound having a hydroxyalkyl group, and the polycarbonate diol has an alicyclic structure or a heterocycle.

This disclosure relates to a dielectric film-forming composition that includes (a) at least one resin selected from the group consisting of: i) a fully imidized polyimide polymer; ii) a polyamic acid ester; iii) a cyclized polydiene resin; and iv) a mixture of a cyclized polydiene resin and a cyanate ester compound; and (b) at least one additive selected from a group consisting of: i) a polybenzoxazole (PBO) precursor; ii) PBO particles; iii) a mixture of PBO and silica particles; and iv) a PBO resin containing at least two reactive functional groups.

A multi-layer synthetic leather product comprising (A) a silicone-based top layer; and (B) a polyurethane-based skin layer formed with a polyurethane dispersion formulation wherein the polyurethane dispersion formulation is formed by blending water, at least one chain extender, and an isocyanate-terminated prepolymer, the isocyanate-terminated prepolymer is the reaction product of a mixture comprising at least one isocyanate compound, at least one polyol compound, and from 2.5% to 15% by weight, based on the weight of the prepolymer, of at least one allyl polyether monoalcohol. As a chemical bond is formed between the top layer and the surface layer, the synthetic leather product exhibits excellent peel resistance, mechanical strength, easy cleaning ability and hand feeling.

This (meth)acrylate compound production method includes a step (A1) for generating a (meth)acrylate compound (a) that includes an allophanate bond by reacting an iso(thio)cyanate compound containing two or more iso(thio)cyanate groups and a (meth)acrylate compound (b) containing one or more hydroxy groups and one or more (meth)acryloyl groups in the presence of a zinc compound at a content ratio at which the contained molar ratio of the iso(thio)cyanate groups in the iso(thio)cyanate compound to the hydroxy groups in the (meth)acrylate compound (b) is greater than 1.

A polymerizable composition according to the present disclosure comprises: at least one selected from a polyiso(thio)cyanate compound and a polyepisulfide compound; a polythiol compound; and either a compound represented by general formula (1), or a reaction product of a compound represented by general formula (1) and a polyiso(thio)cyanate compound or a polyepisulfide compound. In general formula (1), Ra is a monovalent hydrocarbon group or a halogen atom, n1 is a number of 0-4, Rb is a monovalent group free of OH, SH, or NHR2, n2 is a number of 0-3, R1 is a divalent hydrocarbon group, X is OH, SH, or NHR2, and R2 is a hydrogen atom or a hydrocarbon group.

Disclosed is a solventless adhesive composition comprising (A) an isocyanate component obtained by the reaction of reactants comprising at least one monomeric cycloaliphatic isocyanate compound and at least one first polyol; and (B) a polyol component comprising particularly selected polyols. The solventless adhesive composition can be used for the production of laminate materials, e.g. laminate backsheet of a photovoltaic device, which well meets the requirements of various compliance regulations and has superior performance properties such as bond strength, aging resistance, yellowing resistance, delamination resistance, and the like. A method for producing said laminate material and the resultant laminate material are also disclosed.

A solvent-based polyurethane bactericidal adhesive system for producing laminates, comprising: (A) at least one isocyanate compound, component A, comprising: a blend of: (i) at least one aliphatic isocyanate and (ii) at least one aromatic isocyanate; and (B) at least one isocyanate-reactive component, component B, comprising: (i) at least one phosphate compound and (ii) at least one polyether polyol having an average molecular weight of less than 1,500 g mol; a method for producing the above adhesive; a multilayer laminate comprising the above adhesive; and a method for producing a laminate using the above adhesive.

Provided is a method for producing a high-purity ethylenic isocyanate compound, in which (meth)acrylic anhydride is suppressed.　Provided is a method for producing a purified ethylenic isocyanate composition from a crude ethylenic isocyanate composition, wherein an alcohol is added to the crude ethylenic isocyanate composition, and the purified ethylenic isocyanate composition contains a (meth)acrylic acid ester compound which has an isocyanate group, and 0.2 mass% or less of an acid anhydride.　Also provided is an ethylenic isocyanate composition which contains an ethylenic isocyanate compound and 0.2 mass% or less of an acid anhydride.

A (meth)acrylate includes a compound (X) having a structure formed by a reaction of an epoxy compound (A) containing an epoxy group and a tertiary carbon atom or a quaternary carbon atom, a (meth)acrylic acid (B), and an iso(thio)cyanate compound (C) having two or more iso(thio)cyanate groups.

Disclosed is a method for producing a molded polyurethane-polyisocyanurate-fiber composite part, the method comprising obtaining a reaction mixture by mixing: (A) an isocyanate-reactive component comprising: a polyol having an average functionality of 1.8 to 5.0 and a hydroxyl number of 200 to 500; and an alkali metal catalyst obtainable by introducing an alkali metal salt or an alkaline earth metal salt into a carbamate group-containing compound R-NH-CO-R ', where R is not hydrogen and / or is not COR' '; and (B) an isocyanate component comprising: at least one isocyanate compound, and a compound comprising one or more epoxy groups; and molding the reaction mixture at a temperature between 75 DEG C and 220 DEG C, at a pressure of 50 bar or more, to obtain the molded polyurethane-polyisocyanurate-fiber composite part.

The present invention relates to the technical field of leather finishing agents, and discloses a preparation method of a silicone polyurethane emulsion for leather. The present invention reacts polyether alcohol modified polysiloxane, isocyanate compound, chain extender, etc., and then adds distilled water, defoamer, thickener, to obtain a silicone polyurethane emulsion for leather. The side chain of its silicone polyurethane contains a large amount of hydrophilic polyether segments, has the effect of aqueous self-emulsification, good dispersibility in water, no stratification after emulsion storage, no sedimentation, and excellent storage stability. The polyether long chain segment introduced in the side chain of the silicone polyurethane undergoes molecular chain entanglement to form physical crosslinking, and a stable hydrogen bond network is formed between the polyether segments, which is conducive to improving the mechanical dimensional stability of the silicone polyurethane film, showing higher tensile strength and elongation at break, and the color fastness to friction also reaches 4-5 levels, with good friction resistance and high color fastness.

The present invention relates to an additive for long-term storage of an isocyanate compound, an isocyanate mixture comprising same, and a method for storing an isocyanate compound using same.

A polyolefin-based laminating adhesive composition for use in producing a mechanical recyclable material, the adhesive composition including a mixture of: (a) at least one saturated polyolefin polyol; and (b) at least one aliphatic multi-functional isocyanate compound; a process for producing the above adhesive composition; a mechanically recyclable multi-layer laminate including: (A) at least one first film substrate layer; (B) at least one second film substrate layer; and (C) at least one layer of the above polyolefin-based laminating adhesive composition; wherein the at least one first film substrate layer is bonded to the at least one second film substrate layer via the adhesive composition layer; a process for producing the above mechanically recyclable multi-layer laminate; and a packaging article made from the above mechanically recyclable multi-layer laminate.

The thermosetting resin composition contains (A) a cyanate ester compound, (B) a phenolic resin, (C) another curable resin as an arbitrary component, (D) a metal catalyst, and (E) another curing catalyst as an arbitrary component. When the total amount of the component (A), the component (B) and the component (C) is taken as 100 parts by mass, the amount of the component (A) is 80-99 parts by mass, the amount of the component (B) is 1-15 parts by mass, and the amount of the component (C) is 0-10 parts by mass. The amount of component (E) is 1 part by mass or less per 100 parts by mass of the total of component (A), component (B), and component (C).

[Problem] To provide a resin composition having excellent heat resistance and flame retardancy, a cured product, a prepreg, a metal foil-clad laminate, a single-layer resin sheet, a laminated resin sheet, and a printed wiring board. [Solution] The resin composition contains a cyanate ester compound (A) represented by formula (1), a cyclophosphazene compound (B), and an inorganic filler (C). Excellent heat resistance and dielectric properties can be obtained by the cyanate ester compound (A), and flame retardancy can be improved by the cyclophosphazene compound (B) and the inorganic filler (C).

To provide a cyanate compound which facilitates control of a polymerization reaction when a cured product is produced and is suitably used in production of a cured product having desired characteristics, and a method for producing the same, a resin composition, and a cured product.SOLUTION: A cyanate compound having two or more cyanate groups in the molecule has a content of a compound having a triazine ring in an HPLC area percentage of 4.0 area% or less.SELECTED DRAWING: None

A solvent-based polyurethane retort adhesive composition for producing laminates including: (A) at least one isocyanate compound, Component A; and (B) at least one isocyanate (NCO)-reactive component, Component B, comprising (1) at least one phosphate ester compound and (ii) at least one polyester polyol having an average molecular weight of greater than 3,000 g / mol; a process for producing the above adhesive; a multi-layer laminate product including the above adhesive; and a process for producing a laminate product using the above adhesive.