88 results about "Isocyanate compound" patented technology

This application belongs to the technical field of grouting materials for tunnel engineering, specifically relating to a grouting material suitable for tunnel rock strata reinforcement and its preparation method. It includes component A and component B; by weight, component A comprises: 75-85 parts of a first base material, 10-20 parts of a coupling agent, and 2-5 parts of a catalyst; component B comprises: 70-80 parts of a second base material and 15-25 parts of a modifying accelerator; wherein, the first base material is a water glass solution, and the physicochemical properties of the water glass solution meet the following conditions: modulus > 2.5, Baume degree < 40°Bé; the second base material is composed of isocyanate compounds and glycidyl etheroxypropyl cage-like polysilsesquioxane in a weight ratio of 100:(11-23); the modifying accelerator includes polyvinylpyrrolidone and dicarboxylic acid alkyl ester compounds. The two base materials synergistically cure at low temperature to form a highly cross-linked organic-inorganic composite network, thereby significantly improving the compressive strength of the solidified body.

The application discloses a kind of high-temperature phase change cooling-self-repairing dual-function microcapsules and its application, belong to intelligent road material field.The preparation method of the microcapsule includes: high-temperature phase change core material, aromatic oil asphalt regenerant and polyisocyanate compound are mixed to prepare oil phase;Afterwards, the oil phase is added to aqueous phase, and after mixing, it is reacted under the condition of 60~70 DEG C, after reaction is completed, the precipitate is collected, and the precipitate is washed with water and ethanol, and then dried to obtain the microcapsule;The preparation of the high-temperature phase change core material includes: mixing tricosane and tetracosane under the condition of 60~70 DEG C, and then cooling to room temperature to obtain high-temperature phase change core material;The aqueous phase is non-ionic emulsifier aqueous solution.The application effectively reduces the temperature of pavement by phase change endothermic, and relieves rut and aging;At the same time, the regenerant in core material can be released when crack occurs, to realize self-repairing.The application significantly improves the rut resistance, durability and service life of asphalt pavement in high-temperature area.

This invention provides a method for recycling packaging used in food packaging and other applications, as well as laminates used in the manufacture of such packaging. [Solution] A recycling method comprising a peeling step of immersing a laminate, which includes a first substrate, a second substrate, and an adhesive layer for bonding the first substrate and the second substrate, wherein the adhesive layer is a cured coating film of a two-component curing adhesive consisting of a polyol composition and a polyisocyanate composition containing a polyisocyanate compound, in a release agent to peel off the first substrate and the second substrate.

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.

A kind of fast curing dimer fatty acid based polyurea resin and its preparation method, with dimer fatty acid as raw material, by reacting with glycidyl methacrylate to obtain intermediate, then the intermediate is added with a certain amount of phenylamine compound by amine addition reaction to obtain component A;Finally, the prepared component A is added to a certain proportion of isocyanate compound to obtain component B, and the obtained A / B two components are fast curing dimer fatty acid based polyurea resin.The dimer fatty acid based polyurea resin prepared by the patent can significantly reduce the reaction speed of conventional secondary amine and isocyanate group, increase the operable time, and effectively improve the usability of polyurea resin.At the same time, the cross-linked polymer containing amide bond, urea group and benzene ring in it has flexibility and rigidity, and can be used in the fields of road rapid repair, building surface spraying, etc.The dimer fatty acid based polyurea resin has abundant raw material sources, low cost, and belongs to renewable clean energy.The preparation process route is simple and feasible, the reaction condition is mild, and the application prospect is wide.

The present invention provides a two-component curing adhesive with excellent bonding strength between metal foil and biaxially oriented polyamide film, a laminate bonded with the adhesive, and a packaging material. [Solution] A two-component curing adhesive comprising a polyisocyanate compound (A), a polyol compound (B), and a modified silicone compound (C), wherein the polyol compound (B) comprises at least one selected from polyester polyol (B1) and polyester polyurethane polyol (B2); a laminate bonded with the adhesive; and a packaging material.

The present invention aims to solve the above problems and provide a monofilament that has low intrinsic viscosity while possessing high hydrolysis resistance, which was not possible with conventional technology. [Solution] A polyester monofilament comprising a resin composition mainly composed of polyester resin, wherein the resin composition contains 0.01 to 4.00 parts by mass of an amine compound and 0.01 to 4.00 parts by mass of an isocyanate compound per 100 parts by mass of polyester resin.

Provided is a solvent-free adhesive suitable for producing high-quality recycled plastics with little discoloration. The present invention provides a solvent-free two-component curable adhesive that contains a polyol composition (X) containing a polyol compound (A), and a polyisocyanate composition (Y) containing a polyisocyanate compound (C), wherein: the polyol compound (A) includes a polyol compound (A1) that has a hydroxyl value of 45-600 mgKOH / g and an average number of functional groups of 1.8-3.0; the polyisocyanate compound (C) includes a polyether polyurethane polyisocyanate (C1); and the polyol composition (X) and the polyisocyanate composition (Y) are used so that the urethane bond concentration becomes 2.0 mmol / g or greater after reaction.

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 polyurethane insulation foam composition is disclosed herein. The polyurethane insulation foam comprises: (i) an aromatic isocyanate compound; (ii) an isocyanate reactive compound; (iii) water; (iv) a tertiary amine compound; (v) a hydrophilic carboxylic acid compound; (vi) a halogenated olefin compound; (vii) a stabilizing compound, and (vii) optionally, other additives.

A process and a system to produce sustainable, especially renewable diisocyanates as well as downstream products 5 thereof are provided.

This invention provides a cationic electrodeposition coating composition that maintains coating properties such as corrosion resistance while exhibiting good low-temperature curing properties. A cationic electrodeposition coating composition comprises an amination epoxy resin (A) and a polyisocyanate curing agent (B), wherein the polyisocyanate curing agent (B) comprises a blocked polyisocyanate compound (B1) selected from polyisocyanates selected from 1,5-pentamethylene diisocyanate and 1,5-pentamethylene diisocyanate polymers.

To provide a multi-component organic solvent-based primer paint composition that has good finish and adhesion, and excellent substrate opacity and drying properties, and a repair painting method using the same. [Solution] A multi-component organic solvent-based primer paint composition obtained by mixing a main component (I) and a curing agent component (II), wherein the main component (I) comprises an acrylic polyol (A), a pigment composition (B), and an organic solvent (C), the curing agent component (II) comprises a polyisocyanate compound, the acrylic polyol (A) contained in the main component (I) comprises an acrylic polyol (A1) with a glass transition temperature of 40 to 70°C and an acrylic polyol (A2) with a glass transition temperature of 0 to 30°C, and the pigment composition (B) contained in the main component (I) contains barium sulfate and clay as part of its components.

The present invention aims to provide a polyurethane resin that is excellent in both vibration damping characteristics and ease of dismantling. [Solution] A method for producing a polyurethane resin having vibration damping properties and heat decomposition properties from a polyurethane composition, characterized in that the polyurethane resin contains units derived from an active hydrogen compound having a nominal functional value of 0.5 or more and less than 1.5, an active hydrogen compound having a nominal functional value of 1.5 or more and less than 2.5, an active hydrogen compound having a nominal functional value of 2.5 or more, and an isocyanate compound IC having a nominal functional value of 1.5 or more, and these units satisfy predetermined conditions 1-1 and 1-2.

A clear coating composition includes a hydroxyl group-containing acrylic resin (a), a hydroxyl group-containing polyester resin (b), a polyol compound (c) other than the hydroxyl group-containing acrylic resin (a) and the hydroxyl group-containing polyester resin (b), a polyisocyanate compound (d), organic dispersed particles (e), a cellulose derivative (f), and an organic amine catalyst (g) having an amidine group. The hydroxyl group-containing acrylic resin (a) has a hydroxyl value of 90 mg KOH / g to 190 mg KOH / g, a weight average molecular weight of 4000 to 6000, and a glass transition temperature of 15°C to 100°C. The polyol compound (c) has a hydroxyl value of more than 200 mg KOH / g to 1000 mg KOH / g and a molecular weight of 100 to 1000. The cellulose derivative (f) contains at least one selected from the group consisting of cellulose ethers and cellulose esters and has a solids concentration of 50 mass% or more.

This invention provides technology for utilizing by-product amine compounds resulting from the decomposition of polyurethane resins. [Solution] The method for producing the solid involves reacting a polyurethane resin with a decomposition agent to produce a decomposition product, adding an acidic compound to the decomposition product, and reacting an isocyanate compound with a composition containing the reaction product of the amine compound derived from the decomposition product and the acidic compound to obtain the solid.

An electrolyte and a lithium ion battery. The electrolyte comprises a solvent and an additive, wherein the solvent comprises a carboxylic acid ester; the additive comprises a benzenesulfonyl isocyanate compound, and the benzenesulfonyl isocyanate compound satisfies formula 1: formula 1, wherein R1, R2, R3, R4, and R5 are each independently selected from any one of H, F, Cl, Br, methyl, ethyl, propyl, butyl, pentyl, and hexyl.

A polyisocyanate composition comprising a reaction product of an isocyanate compound and a chlorine-containing polyether polyol represented by formula (1) [in the formula, R1 represents a residue obtained by removing, from a compound having m-number of active hydrogen-containing groups, the m-number of active hydrogen-containing groups, m represents 2 or 3, and n represents the number of repeating units derived from epichlorohydrin and is an integer of 2 or more], wherein the blending ratio of the chlorine-containing polyether polyol and the isocyanate compound when setting and reacting the chlorine-containing polyether polyol and the isocyanate compound is NCO / OH=5.0 / 1 to 70.0 / 1 as indicated as the mole ratio of the total amount of NCO groups in the isocyanate compound and the total amount of OH groups in the chlorine-containing polyether polyol.

An aqueous multicomponent coating composition comprising: a first liquid containing a hydroxyl group-containing acrylic resin (A) and a polyurethane resin (B); and a second liquid containing a polyisocyanate compound (C), wherein the polyisocyanate compound (C) contains: a polyisocyanate compound (C1) not containing a hydrophilic group having a number average molecular weight of 150 or more and 2500 or less; and a polyisocyanate compound (C2) containing a nonionic hydrophilic group.

A lithium primary battery 10 disclosed herein comprises a positive electrode 1, a negative electrode 2, and a non-aqueous electrolyte. The positive electrode 1 contains manganese dioxide. The negative electrode 2 contains at least one among metallic lithium and a lithium alloy. The non-aqueous electrolyte contains: at least one compound selected from the group consisting of oxalate salts, sulfonylimide salts, and isocyanate compounds; and a cyclic imide compound.

The application discloses a composite foaming material and a preparation method thereof and a refrigerator, and relates to the technical field of foaming materials. The preparation method of the composite foaming material comprises the following steps: mixing plant-based waste, a polyhydroxy alcohol and a composite acid catalyst, performing microwave depolymerization treatment, and obtaining plant-based polyol, wherein the composite acid catalyst comprises a strong acid and a medium-strong acid; providing bio-based polyether polyol, a cross-linking catalyst and an isocyanate compound, mixing the plant-based polyol, and performing foaming treatment to obtain the composite foaming material. The preparation method of the composite foaming material provided in the application can prepare the composite foaming material with low thermal conductivity, high low-temperature compressive strength and excellent dimensional stability by controlling the microwave-assisted acid catalytic depolymerization process, matching the plant-based polyol with the bio-based polyether polyol and regulating the foaming forming process without foaming agent, and the composite foaming material can be directly applied to the refrigerator and can adapt to the working temperature range of the refrigerator, i.e. 40 DEG C to 60 DEG C, and long-term use requirements.

A lithium-ion battery and an electric device (6). The lithium-ion battery comprises a positive electrode sheet, a negative electrode sheet, a separator, and an electrolyte. The negative electrode sheet comprises a negative electrode active material layer; the negative electrode active material layer comprises a negative electrode active material; and the negative electrode active material comprises a silicon-based material. The electrolyte comprises an additive; the additive comprises a first additive and a second additive; the first additive is an alkynyl-containing imidazole compound; and the second additive comprises one or more of an organic anhydride compound and an isocyanate compound.

This application discloses a rigid polyurethane foam, its preparation method, and a refrigerator, relating to the field of foaming materials technology. The preparation method of the rigid polyurethane foam includes: providing a wet dispersion and dispersing water, mixing them, and pre-dispersing them to obtain a pre-dispersion liquid; the wet dispersion includes CNF and initial water; providing a polyol, mixing it with the pre-dispersion liquid, and subjecting it to gradient shearing with progressively increasing shear speeds to obtain a mixture; dehydrating the mixture to obtain a CNF / polyol dispersion; providing a foaming agent and an isocyanate compound, mixing them with the CNF / polyol dispersion, and then performing a foaming treatment to obtain the rigid polyurethane foam. The rigid polyurethane foam prepared using the above method exhibits excellent properties such as low thermal conductivity, high compressive strength, high dimensional stability, high thermal stability, and short curing time, which can meet the usage requirements and production efficiency of refrigerator insulation layers. The preparation method provided in this application can improve the uniform dispersion of cellulose nanofibers.

This invention belongs to the technical field of polymer functional coating materials, and discloses a bio-based polyurethane antibacterial and antifouling coating, its preparation method, and its application. It addresses the technical shortcomings of existing polyurethane coatings, such as reliance on petrochemical raw materials, limited functionality, poor synergistic effect of antibacterial and antifouling properties, short duration of antibacterial and antifouling effects, insufficient biosafety, and complex preparation processes. The steps are as follows: a polyorganosiloxane with single-terminated hydroxyl groups is dissolved in organic solvent I and a polyisocyanate compound is added to carry out the first reaction to obtain reaction solution I; curcumin is dissolved in organic solvent I and added to reaction solution I to carry out the second reaction to obtain reaction solution II; a bio-based polyol is dissolved in organic solvent II and added to reaction solution II to carry out the third reaction to obtain the bio-based polyurethane antibacterial and antifouling coating. The resulting coating exhibits excellent antibacterial properties, antifouling properties, and self-recovering antifouling function, and can be applied to various substrates such as glass, metal, wood, and ceramics, showing broad application prospects.

A method for manufacturing a medical device having a surface lubricating layer that exhibits excellent durability even in a heat treatment at a low temperature. The method for manufacturing includes a medical device, the medical device including a base material layer and a surface lubricating layer supported on at least a part of the base material layer, the method including: preparing a coating liquid containing a block copolymer having a structural unit (A) derived from a reactive monomer having an epoxy group and a structural unit (B) derived from a hydrophilic monomer, an isocyanate compound having two or more isocyanate groups, and a solvent; and applying the coating liquid onto the base material layer.

This application discloses a thermoresponsive microcapsule, its preparation method, and a liquid epoxy molding compound. The thermoresponsive microcapsule comprises a core material and a shell material covering the core material. The shell material is polymerized from an isocyanate compound, a thermoresponsive crosslinking agent, and an amine compound. The thermoresponsive functional groups in the thermoresponsive crosslinking agent are introduced into the shell material. By utilizing the thermally ruptured characteristics of these functional groups, the rupture of the shell material is temperature-controlled, thereby achieving temperature-controlled release of the core material. This thermoresponsive core-shell structure can be used to encapsulate accelerators, other water-insoluble compounds, or other highly reactive compounds, thus being compatible with various systems and application scenarios to achieve temperature-controlled triggering.

This application discloses a composite foam material and its degradation and recycling method, relating to the field of foam material technology. The composite foam material includes a polyol, isocyanate compounds, a foaming agent, and a dual-response degrading agent; wherein the dual-response degrading agent includes a temperature-responsive material and an enzyme-affinity material. In the composite foam material provided by this application, both temperature-responsive and enzyme-affinity materials are introduced as dual-response degrading agents to construct a "temperature-enzyme" dual-response synergistic degradation system. This gives the composite foam material dual degradation triggering characteristics. In the subsequent recycling stage, the urethane bonds of the polyurethane foam can be rapidly destroyed through the synergistic effect of appropriate heat treatment and enzyme catalysis, achieving efficient depolymerization. After simple purification, the depolymerization product yields a high-purity recycled polyol, which can be directly used in the preparation of high-end refrigerator insulation layers.

The present invention provides a composition suitable for forming a patterned film layer using an inkjet printing process and possessing excellent storage stability, wherein the resulting cured layer maintains high chemical resistance, solder resistance, and adhesion while also exhibiting excellent fold resistance. [Solution] The composition comprises 100 parts by weight of a first monomer, 1 to 10 parts by weight of a second monomer, 10 to 30 parts by weight of a urethane acrylate, and 15 to 35 parts by weight of a blocked isocyanate compound. The first monomer is a monoacrylate compound, a monomethacrylate compound, a vinyl aromatic compound, an oxetane compound, maleic anhydride, dicyclopentadiene, N-vinylpyrrolidone, N-vinylformamide, or a combination of the above. The second monomer is an alcohol compound having at least two reactive functional groups, the reactive functional groups being acrylate groups or methacrylate groups.

This invention discloses a polysiloxane-polyurethane copolymer thermal interface material, its preparation method, and its applications. The preparation method includes the following steps: dissolving a polyether-type polyol polymer, an isocyanate compound, and a bifunctionalized polysiloxane polymer in an ester solvent, carrying out a polymerization reaction under the action of a catalyst, adding filler and mixing to obtain the polysiloxane-polyurethane copolymer thermal interface material. This invention, from a molecular design perspective, introduces multiple hydrogen bonds into the molecular chain of the polysiloxane-polyurethane copolymer thermal interface material through precise stepwise addition polymerization of polyether-type polyurethane and bifunctionalized polysiloxane. Utilizing the strong interaction and dynamic reversibility of hydrogen bonds, a breakthrough in material adhesion performance is achieved at the molecular level.