30 results about "Propene oxide" patented technology

Provided is a method for producing a polyoxypropylene polymer with which it is possible to achieve a high average molecular weight in a short polymerization time. This method is a method for producing a polyoxypropylene polymer having a number average molecular weight of 30,000-70,000 (inclusive). The polymerization is carried out by additionally oxidizing propylene over time in a reaction system comprising a hydroxyl group-containing initiator and a composite metal cyanide complex catalyst. The polymerization temperature is set to 120-160 DEG C, the moisture content in the propylene oxide is 200 ppm or less, and the ratio (X / Y) of the designed molecular weight (X) to the time (Y) (minute) required to add the propylene oxide is 95-130.

Polyurethane foam is made from a foam formulation that includes a random copolymer of propylene oxide and ethylene oxide having an oxyethylene content of 40 to 75% by weight, a random and / or block copolymer of propylene oxide and ethylene oxide having an oxyethylene content of 5 to 15% by weight, a silicone surfactant having poly(alkylene oxide) side-chains terminated in a hydrocarbyl or -C(O)R4 group where R4 is hydrocarbyl, and an organic polyisocyanate comprising at least 70% by weight of toluene diisocyanate and / or an isocyanate-terminated toluene diisocyanate prepolymer. The foam is characterized by low resilience, low compression sets and good airflows.

The application provides a two-component polyurethane pouring sealant and a preparation method and application thereof. The two-component pouring sealant comprises an A component and a B component. The A component comprises propylene oxide modified lignin polyol and erythritol modified polyether polyol. The B component comprises cashew phenol based polyurethane prepolymer. The propylene oxide modified lignin polyol, the erythritol modified polyether polyol and the cashew phenol based polyurethane prepolymer have a synergistic effect, which can significantly improve the shear strength of the pouring sealant at high temperature, and the pouring sealant has good low-temperature bonding performance, aging resistance and impact resistance. Specifically, the shear strength at 60 DEG C is greater than 13 MPa, the shear strength remains above 12.5 MPa after aging in a double 85 environment, the attenuation rate is less than 7% compared with the shear strength at room temperature, the shear strength can remain above 13 MPa after high-low temperature impact test, the attenuation rate is less than 3%, and the pouring sealant meets the pouring requirements of power batteries in the field of new energy batteries.

The invention discloses a sandal insole, a preparation method thereof and a sandal, and relates to the field of shoe materials. The sandal insole comprises a PU insole base material, and the PU insole base material is formed by reacting a material A and a material B; the material A comprises bifunctional polytetrahydrofuran ether, micromolecular straight-chain diol, branched-chain diol, a chemical foaming agent, a catalyst and polyether silicone oil; the branched chain diol is selected from at least one of 2-butyl-2-ethyl-1, 3-propylene glycol and 2, 2, 4-trimethyl-1, 3-pentanediol, and the branched chain diol is selected from at least one of 2-butyl-2-ethyl-1, 3-propylene glycol and 2, 2, 4-trimethyl-1, 3-pentanediol; the material B comprises an isocyanate component A and an isocyanate component B, the isocyanate component A is obtained by reaction of diphenylmethane diisocyanate, polypropylene oxide glycol, polypropylene oxide triol and carbodiimide modified diphenylmethane diisocyanate according to a specific ratio, and the isocyanate component B is isophorone diisocyanate. The sandal insole has the advantages of excellent seawater resistance, low compression set rate, good mechanical properties and long service life.

A composition comprising water and a polyalkylene glycol having an allyl content of less than 20 μeq / g, which composition has reduced foaming properties and preferably a biodegradability of at least 60% as determined using OECD 301F. The polyalkylene glycol can be made by forming a first intermediate comprising an oxypropylene block by reacting propylene oxide with a polyol initiator in the presence of a Double Metal Cyanide catalyst, and then reacting the first intermediate with ethylene oxide in the presence of a KOH catalyst.

The invention relates to the technical field of high-molecular adhesives, and discloses a polyurethane adhesive which comprises the following components in parts by mass: 1-5 parts of a curing agent, 1-5 parts of a curing agent and 1-5 parts of a curing agent. The high-activity polypropylene oxide-ethylene oxide copolymerized polyol is prepared from the following components in parts by weight: 85 to 125 parts of high-activity polypropylene oxide-ethylene oxide copolymerized polyol, 28 to 40 parts of an isocyanate mixture, 6 to 12 parts of a composite chain extender, 0.3 to 0.8 part of an environment-friendly catalyst, 15 to 25 parts of a phosphorus-nitrogen synergistic flame retardant, 0.8 to 1.5 parts of an anti-aging aid and 1.2 to 2.0 parts of a silane coupling agent. The polyurethane adhesive and the preparation method thereof have the advantages of being high in wide-temperature-range bonding stability, high in damp-heat aging resistance, environment-friendly, flame-retardant, good in base material bonding universality, stable in preparation process and the like; the problems that an existing polyurethane adhesive is poor in wide temperature range performance, poor in damp-heat aging resistance, difficult to give consideration to both environmental protection and flame retardance, insufficient in base material universality and poor in preparation process stability are solved.

The present application belongs to the technical field of reactive flame-retardant polyether polyols for polyurethane, and relates to a hydrolysis-resistant flame-retardant polyether polyol and a preparation method thereof. The polyether polyol is formed by compounding trihydroxy polyoxypropylene ether and a phosphorus-containing reactive polyether polyol. The phosphorus-containing reactive polyether polyol is prepared by reacting 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, diethanolamine and paraformaldehyde, and then reacting with propylene oxide. The obtained product has a high hydroxyl value, moderate viscosity, low acid value, low moisture content, and low total content of sodium and potassium. After being immersed in water, the hydroxyl value retention rate is high, the relative increase in viscosity is small, and the increase in acid value is controlled. The product can solve the problem that the existing phosphorus-containing reactive polyether polyol flame-retardant is difficult to balance the flame-retardant improvement, flowability, reactivity and hydrolysis-resistant stability, and can be used for preparing polyurethane materials that require flame retardancy and hydrolysis-resistant stability.

The application discloses a bismaleimide-polyether amine photosensitive resin composition and application thereof in 3D printing. The bismaleimide-polyether amine photosensitive resin composition is composed of 5-50% bismaleimide-polyether amine resin, 5-50% polyurethane acrylic resin, 0-30% polyethylene glycol dimethacrylate resin, 0-30% alkoxylated acrylate, 0-25% diluent, 0.1-10% photoinitiator, 0.1-5% defoamer, 0-5% leveling agent and 0-5% antioxidant. The photosensitive resin composition is simple to prepare and low in cost, can be used in 405nm light curing 3D printing technology, introduces polyether amine segments into bismaleimide segments while ensuring good rheological viscosity performance, the photosensitive resin composition has good low-temperature resistance, and greatly expands the application range of liquid crystal photosensitive resin 3D printing products.

The application discloses a kind of polyurea foam material and preparation method thereof.The polyurea foam is prepared by mixing component B and component A, the component B at least includes the CO2 adduct of terminal amino compound;The component A includes polyisocyanate compound;The functionality of terminal amino compound and polyisocyanate compound is at least 2.The terminal amino compound includes terminal primary amino compound, terminal secondary amino compound and end-modified terminal primary amino compound;The terminal primary amino compound includes terminal primary amino polyoxyethylene ether, terminal primary amino polypropylene ether and terminal primary amino polydimethylsiloxane.The polyurea foam material prepared by the application does not contain other auxiliary components except a small amount of foam stabilizer, and the foam purity is high.

The invention relates to the technical field of building waterproof coatings, and discloses a composition for a flame-retardant double-component polyurethane waterproof coating, the flame-retardant double-component polyurethane waterproof coating and a preparation method and application of the flame-retardant double-component polyurethane waterproof coating, the composition comprises a component A and a component B in the weight ratio of 1: (1-5), the component A comprises a polyurethane prepolymer, the component B comprises a polyurethane prepolymer, and the component C comprises a polyurethane prepolymer; the polyurethane prepolymer is prepared from a mixed material containing a first main agent and a first auxiliary agent; the first main agent is prepared from polyoxyalkylene polyol and bisphenol A polyether polyol in a weight ratio of (1-6): 1; the component B is composed of a second main agent and a second auxiliary agent, and the second main agent is at least one of polyoxyalkylene polyols; the polyoxyalkylene polyol is selected from at least one of polypropylene oxide glycol, polypropylene oxide triol and polypropylene oxide-ethylene oxide triol. The flame-retardant double-component polyurethane waterproof coating provided by the invention has excellent flame-retardant effect, heat resistance and mechanical property.

[Problem] The present invention aims to provide an aqueous solution for manufacturing electronic devices capable of suppressing defects. [Solution] An aqueous solution for manufacturing electronic devices, comprising: an acid (A); a surfactant (B); and a solvent (C); wherein the acid (A) has a pKa (H2O) of 3.0 or less, and the number of carbon atoms contained in one molecule of the acid (A) is 0 to 8; the surfactant (B) substantially contains no ethylene oxide repeating units and no propylene oxide repeating units; and the solvent (C) contains water (C-1). The aqueous solution for manufacturing electronic devices is a high-performance material that can be used in nanotechnology processes for semiconductor device manufacturing, for example, in manufacturing processes for semiconductor devices for controlling liquid crystals, quantum dots, or OLED displays formed on a substrate.

This invention relates to the field of lithium-ion battery technology, specifically to an adhesive for coated separators, its preparation method, and its application. The adhesive for coated separators includes a main agent and additives, wherein the weight ratio of the main agent to the additives is (1-2):(8-9). The main agent is one or more of the following: cross-linked acrylate copolymer, polyvinylidene fluoride-hexafluoropropylene copolymer, polyvinylidene fluoride-trifluorochloroethylene copolymer, polyethylene oxide, polyethylene wax, polypropylene oxide, polyetherimide, polyacrylonitrile, and polyaniline. The additives include the following components in parts by weight: 0.1-5 parts of dispersant, 0.05-1 part of surfactant, 0.05-3 parts of thickener, and 91-95 parts of ceramic particles. Through a dispersant-PMMA pretreatment process, ultra-uniform dispersion and strong interfacial bonding of ceramic particles in the polymer are achieved, eliminating the risk of coating cracking and peeling. The uniformly distributed ceramic particles form a robust heat-resistant skeleton, ensuring that the diaphragm experiences almost no thermal shrinkage at temperatures above 180°C, effectively preventing thermal runaway.

The invention relates to a shoe material special material with soft and wear-resistant functions and a preparation method thereof, and the shoe material special material comprises the following raw materials: natural rubber, butadiene styrene rubber, ethylene-vinyl acetate copolymer, chlorosulfonated polyethylene, modified mica powder, coumarone resin, polyethylene wax, an anti-aging agent, polyethylene glycol, trihydroxy polyoxypropylene ether, sulfur and an accelerant. Soles and vamps prepared from the shoe material special material have excellent wear resistance and good softness, and the wearing comfort of the prepared soles and vamps is improved.

The invention provides a dispergator and a preparation method and application thereof.The dispergator comprises a main agent and an auxiliary agent, the auxiliary agent comprises a surfactant and a dispersing agent, and the surfactant comprises at least one of a fatty alcohol-polyoxyethylene ether compound, polyether modified siloxane, APG alkyl glycoside, alkanolamide, sodium dodecyl benzene sulfonate and dodecyl acetic acid; the dispersing agent is prepared from at least one of trihydroxy polyoxypropylene ether, N-methyl pyrrolidone, APG alkyl glycoside, ethyl lactate, D-limonene, sodium dodecyl benzene sulfonate and dodecyl acetic acid. According to the dispergator provided by the invention, the main agent has strong dissolving capacity and enters a polymer of an adhesive to swell and dissolve the polymer, so that degumming is completed; the auxiliary agent is used for reducing the liquid surface tension, enhancing the permeability of the main agent and improving the degumming efficiency.

[Problem] To provide a method for improving the selectivity of an unsaturated aldehyde. [Solution] A method for producing an unsaturated aldehyde, which uses a catalyst including a complex oxide containing molybdenum, bismuth, iron, and cobalt, and subjects a compound selected from propylene, isobutylene, and a tertiary alcohol to catalytic gas-phase oxidation in the presence of a molecular oxygen-containing gas in a fixed-bed multi-tubular reactor, wherein the catalyst is obtained by reduction treatment followed by oxidation treatment.

The present disclosure provides a catalyst for preparation of propylene oxide by epoxidation of propylene with oxygen, and use thereof. The catalyst comprises a zeolite support and an active component which is at least one of titanium, tin, molybdenum, or tungsten. A preparation method of the catalyst comprises: subjecting a silica-alumina zeolite to a dealumination treatment, mixing it with an organometallic compound precursor, and calcining the mixture in air. The present disclosure further provides use of the catalyst for direct epoxidation of propylene with oxygen to produce propylene oxide, and can solve problems in current propylene oxide synthesis, such as the need for co-production, high explosion risk, environmental pollution, high energy consumption, and complicated process. The catalyst of the present disclosure exhibits high propylene conversion and propylene oxide selectivity, and maintains favorable stability and propylene oxide yield over a long period, making it suitable for large-scale industrial production.

The invention provides an insulating paint, an insulating coating, a composite board, a battery shell, a battery and electric equipment. In the insulating paint, the organic base material comprises at least one of urethane acrylate, epoxy acrylate, polyester acrylate and pure acrylate; the first monomer comprises at least one of 3, 3, 5-trimethyl cyclohexyl acrylate, isobornyl acrylate, cyclohexyl acrylate and tetrahydrofurfuryl acrylate; the second monomer is prepared from at least one of tricyclodecane dimethyl alcohol diacrylate, trimethylolpropane triacrylate, dipentaerythritol pentaacrylate and dipentaerythritol hexaacrylate; the second monomer is prepared from at least one of tricyclodecane dimethyl alcohol diacrylate, trimethylolpropane triacrylate, dipentaerythritol pentaacrylate and dipentaerythritol hexaacrylate; the third monomer is prepared from at least one of dicyclopentenyl ethoxylated acrylate, ethoxylated trimethylolpropane triacrylate and propoxylated neopentyl glycol diacrylate. The electric insulation property, the surface hardness and the crosslinking density of the prepared insulation coating can be remarkably improved, so that the battery insulation coating with more excellent comprehensive performance is obtained.

The invention discloses folding-resistant bio-based polyurethane leather as well as a preparation method and application thereof, and belongs to the technical field of leather manufacturing. The folding-resistant bio-based polyurethane leather comprises a surface layer, a surface layer, a bonding layer and a bio-based lining which are sequentially stacked, the surface layer is obtained by curing surface layer slurry, and the surface layer slurry comprises a bio-based polyurethane aqueous solution; the bonding layer is obtained by curing bonding layer slurry, and the bonding layer slurry comprises a bio-based isocyanate prepolymer, bio-based polyol, a catalyst, a flame retardant, trihydroxy polyoxypropylene ether, carbon black, polymethylene polyphenylene isocyanate and butanol; and the bio-based lining is a cotton-polyester blended fabric. According to the present invention, the high bio-based material content is provided, environmental protection is easily achieved, the good buckling performance is provided on the basis, and the requirements of the high physical property use scene can be met.

The application relates to a C3 direct oxidation acrylic acid multi-metal oxide catalyst and a preparation method thereof. The application discloses a modification strategy of acid treatment of a catalyst precursor. Specifically, in the preparation stage of the catalyst precursor, a specific oxygen-containing acid (such as boric acid, selenic acid, phosphoric acid or sulfuric acid) solution containing Y elements is introduced into a mixed metal salt solution system to form a uniform slurry under heating and stirring. The acidic environment plays a role in dissolving and dispersing and cooperatively controls the hydrolysis-condensation process of the precursor. After one of rotary evaporation, freeze-drying, spray drying and hydrothermal methods is performed, the catalyst is obtained through calcination. The catalyst is applied to the preparation of acrylic acid through C3 direct oxidation. The propane conversion rate is 55-75%, the propylene conversion rate is 75-85%, and the acrylic acid selectivity is 85-95%. The catalyst prepared by the method has high catalytic activity and good selectivity.

The invention relates to the technical field of coatings, in particular to a single-component quick-drying polyurethane waterproof coating and a preparation method thereof. The waterproof coating provided by the invention is prepared from the following raw materials in parts by weight: 5 to 20 parts of diisocyanate, 200 to 800 parts of polyether polyol, 15 to 45 parts of a silane end-capping agent containing an NCO group, 200 to 550 parts of pigment and filler, 200 to 510 parts of an auxiliary agent and 30 to 100 parts of a solvent, the polyether polyol comprises first polyether polyol and second polyether polyol, the first polyether polyol is selected from one of polyoxypropylene glycol, polyoxypropylene triol and polytetrahydrofuran glycol, the second polyether polyol is propylene oxide-ethylene oxide copolyether polyol, and the primary hydroxyl content accounts for 70% or above of the total hydroxyl content. The waterproof coating provided by the invention is high in curing speed, excellent in mechanical property and capable of maintaining low water absorption.

The invention discloses a protection glue material for preventing copper and aluminum pipe welding spot oxidation and a preparation method thereof, and relates to the technical field of metal protection glue preparation, and the preparation method comprises the following steps: adding MQ resin and allyl polyoxyethylene methyl ether into toluene, uniformly stirring, adding a platinum catalyst, heating at 80-90 DEG C to react for 3-5 hours, carrying out rotary evaporation, washing and collecting, and drying to obtain the protection glue material for preventing copper and aluminum pipe welding spot oxidation. The polyether modified MQ resin is obtained; the preparation method comprises the following steps: mixing polypropylene oxide glycol with toluene-2, 4-diisocyanate, heating at 50-60 DEG C to react for 30-60 minutes, adding N-hexadecyl diethanolamine, heating to 75-85 DEG C, and reacting for 3-5 hours to obtain a prepolymer; and uniformly stirring the prepolymer, 1, 4-butanediol and polyether modified MQ resin, then adding tert-butyl p-diphenol, modified titanium dioxide, polyoxypropylene triol and an organic acid corrosion inhibitor, uniformly stirring and mixing, and removing bubbles in vacuum to obtain the welding spot protection adhesive.

The invention discloses a self-cleaning high-wear-resistance wool hanging prevention sieve plate, and belongs to the technical field of sieve plate materials. The method is used for solving the technical problem that in the prior art, the wear resistance and the self-cleaning property of the prepared wool hanging prevention sieve plate cannot be improved from the perspective of improving a polyurethane-based sieve plate material. A sieve plate body of the self-cleaning high-wear-resistance wool hanging prevention sieve plate is composed of a sieve plate base material and a self-cleaning layer. The composite base material is obtained by reacting a mixed polymer, pentaerythritol polyoxypropylene tetrol and low-molecular-weight polybutylene; the mixed polymer is obtained through a reaction of 2, 4-toluene diisocyanate and hexamethylene diisocyanate, and the low-molecular-weight polybutylene is obtained through a reaction of isobutene and isobutane; the self-cleaning layer is obtained by melting and extruding a self-cleaning coating material; the self-cleaning coating material is obtained by reacting a polymer, polysilicate aluminum ferric and a silane coupling agent, and the polymer is obtained by polymerizing tetrafluoroethylene and vinylidene fluoride.

The invention relates to the field of printing ink, in particular to gravure online UV printing ink with high printing adaptability and a preparation method of the gravure online UV printing ink. The composition is composed of the following raw materials in parts by weight: 30-40 parts of a polyfunctional acrylate monomer; 25 to 40 parts of UV resin; 3-10 parts of an active filler; 5-8 parts of a photoinitiator; 8.5 to 12.5 parts of a processing aid; the active filler is composed of vinyl-containing coated modified wax powder and a functional aid in a weight ratio of 10: (1-3); the functional auxiliary agent is one or a composition of more of mercapto alkyl modified organic silicon, N-hydroxymethyl acrylamide and dicyclopentenyl ethoxylated acrylate. All the components and the active filler have a synergistic effect, so that the ink can quickly permeate and uniformly wet the surfaces of various substrates, stable and uniform printing forming is realized, the defects of white exposure, through printing and the like are avoided, the printing adaptability is improved, and an ink layer formed after curing has better wear resistance.

This invention provides a binder composition for ceramic molding, comprising 15-95% by mass of component (A) and 5-85% by mass of component (B). Component (A) is a copolymer comprising 70-99 mol% of structural units from formula (1), 1-30 mol% of structural units from formula (2), and 0-29 mol% of other structural units, and having a weight-average molecular weight of 50,000-1,000,000. Formula (1) CH2=CR 1 -COO-R 2 In equation (1), R 1 R represents a hydrogen atom or a methyl group. 2 Representing alkyl groups with 1 to 8 carbon atoms, formula (2) CH2=CR 3 -COO-R 4 In equation (2), R 3 R represents a hydrogen atom or a methyl group. 4 Represents a hydroxyalkyl group having 1 to 8 carbon atoms and 1 to 2 hydroxyl groups; Component (B): The compound represented by formula (3), formula (3)R 5 O-(EO) p -(PO) q In equation (3), R 5 It is an alkyl group with 9 carbon atoms, EO is vinyl oxide, PO is propylene oxide, p is the average number of moles of EO added and p = 3 to 9, q is the average number of moles of PO added and q = 2 to 4, and p / q = 1.0 to 3.0.

The invention belongs to the technical field of molecular sieve synthesis, and discloses a preparation method of a flaky hollow TS-1 molecular sieve for phenol hydroxylation, the molecular sieve and application, and the preparation method comprises the following synthesis steps: dropwise adding tetraethyl orthosilicate into an aqueous solution containing tetrapropylammonium hydroxide; after clarification, dropwise adding a solution containing tetrabutyl titanate and isopropanol into the solution; after high-temperature alcohol removal, N, N-dimethylformamide is added; carrying out hydrothermal crystallization, centrifugation, drying and calcination; adding the collected maternal zeolite into an aqueous solution of tetrapropylammonium bromide and ethanolamine; and carrying out hydrothermal crystallization, centrifugation, drying and calcination. The method is low in cost and simple to operate, the sheet-shaped hollow titanium silicalite molecular sieve is synthesized, the diffusion mass transfer rate is increased, and the sheet-shaped hollow titanium silicalite molecular sieve has a large number of hexa-coordination active titanium species and has good catalytic activity in 1-hexene epoxidation, cyclohexene epoxidation, propylene epoxidation and phenol hydroxylation reactions.

The application relates to the technical field of building waterproof coating and discloses a composition for a flame-retardant two-component polyurethane waterproof coating, the flame-retardant two-component polyurethane waterproof coating and a preparation method and application thereof, the composition contains component A and component B in a weight ratio of 1:1-5, the component A comprises a polyurethane prepolymer, the polyurethane prepolymer is prepared from a mixture containing a first main agent and a first auxiliary agent; the first main agent is polyoxyalkylene polyol and bisphenol A polyether polyol in a weight ratio of 1-6:1; the component B is composed of a second main agent and a second auxiliary agent, the second main agent is at least one of polyoxyalkylene polyols; the polyoxyalkylene polyols are selected from at least one of polypropylene oxide diol, polypropylene oxide triol and polypropylene oxide-ethylene oxide triol. The flame-retardant two-component polyurethane waterproof coating provided by the application has excellent flame-retardant effect, heat resistance and mechanical properties.

The application discloses a pretreatment detergent composition and a preparation method and use method thereof, and relates to the technical field of daily chemical washing products. The pretreatment detergent composition is composed of the following raw materials in percentage by mass: 10.0-90.0% of a fatty alcohol alkoxylate, 10.0-90.0% of dimethyl decenamide; the fatty alcohol alkoxylate has the following general formula: R1-EOs / POt-H; wherein R1 is a linear or branched alkyl or alkenyl group with 6-11 carbon atoms, EO is a vinyl oxide group, PO is a propylene oxide group, EO / PO is combined in a random or block manner, s and t represent average addition numbers, s is 2-30, and t is 0.5-10. The application can remove stubborn oil stains and pen stains and has excellent environmental protection effect and safety performance by using the solvent type non-ionic surfactant dimethyl decenamide and the non-ionic surfactant fatty alcohol alkoxylate.

This invention relates to a method for preparing gadolinium alcohol of formula (I). In particular, the method includes the use of propylene oxide in an alkylation step of a compound of formula (II), wherein the propylene oxide reacts directly with the compound of formula (II) without separation, and wherein the propylene oxide is obtained as needed by decomposing propylene carbonate in the presence of a base or alkaline earth metal halide as a catalyst.

Provided is a method for producing a polyoxypropylene polymer with which it is possible to produce a polyoxypropylene polymer having a low viscosity due to a large molecular weight and a narrow molecular weight distribution, even without using a large amount of water. The present invention relates to a method for producing a polyoxypropylene polymer having a designed molecular weight value X (g / mol) of 12000-30000 g / mol, the method comprising: activating a composite metal cyanide complex catalyst by setting the internal temperature of a reaction vessel to which an initiator, the composite metal cyanide complex catalyst, and propylene oxide are added to 90-110 DEG C; and after the internal temperature of the reaction vessel reaches a temperature of 90 DEG C to 110 DEG C (inclusive), adding propylene oxide to the reaction vessel for Y minutes under a condition of 120 DEG C to 160 DEG C (inclusive), and polymerizing, where the value of X / Y is 35 to 67 (inclusive).

The invention relates to a polyether-modified polyisocyanate composition obtainable by reaction of a system comprising: a) a polyisocyanate having an isocyanate group functionality of 2 to 4.5; b) a polyalkylene oxide monoether alcohol having a number average molecular weight of 900 g / mol to 2000 g / mol and a propylene oxide group content of 45 wt% to 100 wt%, relative to the total weight of the alkylene oxide groups of the polyalkylene oxide monoether alcohol; and c) optionally a catalyst; the system having an equivalent ratio of isocyanate groups to hydroxyl groups of 5:1 to 110:1; the polyisocyanate composition having the following characteristics: i) an average isocyanate functionality of 1.8 to 4.1; ii) an isocyanate group content of 8 to 20 wt%; and iii) an amount of polyalkylene oxide monoether structure of greater than 10 wt% and less than 50 wt%, both characteristics ii) and iii) relative to the total weight of the polyisocyanate composition.