1641 results about "Hydroxyl value" patented technology

The present invention is a polyoxyalkylene polyol, its manufacture method, and derivatives, wherein: it is obtained using a phosphazenium compound as a catalyst; the hydroxyl value is 2~200 mgKOH/g; total degree of unsaturation is 0.0001~0.07 meq./g; the head-to-tail bond selectivity of the polyoxyalkylene polyol is 95 mole %; and when the maximum height of the peak of GPC elution curve is set to be 100%, W20 is defined as the peak width at the 20% peak height, and W80 is defined as the peak width at 80% peak height, the ratio of W20/W80 is 1.5 or greater, and less than 3.

A coating composition which comprises (A) a resin having a glass transition temperature of 50 to 120 DEG C., a number average molecular weight of 2,000 to 100,000, a hydroxyl value of 50 to 150 mgKOH/g and an acid value of 1 to 25 mgKOH/g, which is produced by copolymerizing 10 to 90 percent by weight of (a) a (meth)acrylic acid ester of a C1 to C12 alkyl alcohol, 10 to 50 weight % of (b) a first polymerizable double bond-containing and hydroxyl group-containing monomer, 0.1 to 10 weight % of (c) a polymerizable double bond-containing and carboxyl group-containing monomer, 0 to 20 weight % of (d) styrene, 0 to 20 weight % of (e) acrylonitrile and 0 to 10 weight of (f) a second polymerizable double bond-containing monomer, (B) at least one compound selected from the group consisting of a polyisocyanate compound having two or more unblocked isocyanate groups and/or blocked isocyanate groups in the molecule and an aminoplast resin, (C) a dispersing component of at least one inorganic oxide sol selected from the group consisting of an aluminum oxide sol, a silica sol, a zirconium oxide sol and an antimony oxide sol, wherein an amount of a nonvolatile matter of component (C) is 5 to 60 percent by weight based on a total amount of nonvolatile matter of resin (A), compound (B) and component (C). The coating composition provides cured films having excellent weathering resistance, light resistance, stain resistance, stain-removing property, chemical resistance, moisture resistance and appearance and is environmentally friendly and safe.

The invention involves a bio-polyol prepared from epoxy rapeseed oil. The preparation method comprises: carrying out ring-opening reaction of epoxy rapeseed oil with an active hydrogen-bearing nucleophilic reagent at the presence of catalyst to obtain the mixed hydroxyl fatty acid triglyceride, and adding alcoholysis agent of alcohols or alkanolamine and heating for alcoholysis reaction to obtain mixed hydroxyl fatty acid monoester, i.e. biological-based polyol. The invention has the advantages of epoxy rapeseed oil being cheap and easy to get or self-design, reduction of dependence on petrochemical products, strong functions and high adjustability, and production of different functionality and pre-designed hydroxyl values of the bio-polyol according to requirements.

The invention relates to thermosetting acrylic resin for a powder coating. The thermosetting acrylic resin is prepared from the following raw materials in parts by mass: 4-14 parts of an initiator, 110-280 parts of soft monomers, 400-570 parts of hard monomers, 192-450 parts of functional monomers, and 1-8 parts of a molecular weight regulator, wherein the soft monomers refer to acrylic acid alkyl ester compounds, and the hard monomers refer to methacrylate, styrene, or compounds of derivatives of methacrylate and styrene. The acrylic resin contains epoxy functional groups and hydroxyl functional groups simultaneously, wherein the epoxy equivalent is 570-630g/mol and the hydroxyl value is 40-50mgKOH/g; the acrylic resin can react with various substances such as carboxyl, amidogen and isocyanate and can be used for powder coating. A coating film, which is formed after the thermosetting powder coating prepared from the acrylic resin in combination with other materials is sprayed, has excellent weather resistance, good leveling performance, outstanding surface hardness, and high glossiness, durability and decorating performance; the powder coating can be used for indoor or outdoor metal sectional materials or building materials. The thermosetting acrylic resin can substitute for TGIC (triglycidyl isocyanurate) to a certain extent so as to avoid the use of the toxic substances.

The invention provides a transfer printing type ultraviolet light curing ink composition and a preparation method thereof. The ink composition comprises main body resin, a thinner, pigment and photoinitiators, and addition agents are included or not included, wherein the main body resin is polyester acrylate resin, modified acrylic resin, high-functionality-degree aliphatic urethane acrylate and hydroxy acrylic resin, the hydroxy acrylic resin is thermoplastic hydroxy acrylic resin, and the hydroxyl value content is between 45 and 70 mg KOH/g. The invention also provides a mobile phone casing using the ink composition, wherein the mobile phone casing sequentially comprises a substrate, a primer layer, a gloss oil layer and an ink pattern layer from bottom to top, and the ink pattern layer is obtained from the ink composition through transfer printing. When the transfer printing type ultraviolet light curing ink composition is adopted, the adhesive force between the ink layer and a contact layer can be enhanced, and in addition, when the surface of the contact layer is lower, the cured ink layer can effectively avoid the phenomenon of edge contraction.

It is an object of the invention to provide a plasticized polyvinyl acetal composition that is suitably used for an intermediate film of a laminated glass and other applications, specifically, the polyvinyl acetal composition being characterized in that in cases when a layer that is composed of the polyvinyl acetal composition and another resin layer such as a resin layer of a polycarbonate, a poly(meth)acrylic acid ester, or a styrene thermoplastic elastomer are laminated, the plasticizer does not migrate from the polyvinyl acetal layer. The present invention relates to a polyvinyl acetal composition including 100 parts by mass of a polyvinyl acetal and 0.5 to 100 parts by mass of an ester plasticizer or ether plasticizer that is amorphous or has a melting point of 30° C. or less, and has a hydroxyl value of 15 to 450 mgKOH/g.

The present invention provides a liquid ester composition which is obtained by esterifying a branched isostearic acid such as 2-(1,3,3-trimethyl)butyl-5,7,7-trimethyl octanoic acid with dipentaerythritol, and said liquid ester composition having a viscosity at 25° C. of 100,000 to 2,000,000 mPa·s; hydroxyl value of 10 to 160; and cloud point of less than 5° C. This liquid ester composition has pigment dispersibility and hydrating ability that polybutene, which is one of the raw materials of oil compositions for cosmetic compositions, does not have, together with their abilities to sustain feeling of cosmetic film and improve gloss and moisture feeling of cosmetic compositions and shape retaining ability of lipsticks and the like equal to those containing polybutene.

The present invention provides an aqueous two-package type clear coating composition comprising: (A) an aqueous dispersion of a hydroxyl group- and acid group-containing acrylic resin having a hydroxyl value of 30 to 200 mg KOH/g, an acid value of 5 to 50 mg KOH/g, a weight average molecular weight of 3,000 to 30,000, and a glass transition temperature of −30 to +40° C. obtained by radical polymerization of 10 to 50 mass % of a secondary hydroxyl group-containing monomer (a) and 50 to 90 mass % of at least one other unsaturated monomer (b); and (B) a polyisocyanate curing agent obtained by mixing (c) a polyisocyanate compound and (d) a compound containing an anionic functional group, a polyoxyethylene group, and a hydrocarbon group, and a process for forming a multilayer topcoat film using the same.

A coating composition comprising a hydroxy group-containing film forming polymer with a hydroxy value between 75 and 300 mg KOH/g solid resin, a polyisocyanate compound, and a diol of the general formula HO—CH₂—CR(C₂H₅)—CH₂—OH, wherein R is an alkyl group having 3-6 carbon atoms. The invention further relates to a method of coating which comprises said coating composition being applied to a substrate, and to a coated substrate, in particular cars and large transport vehicles.

The invention discloses a bicomponent polyurethane coating, which comprises a component A and a component B. The component A comprises a hydroxy acrylic acid resin, a filler, an auxiliary agent, a solvent, and linear saturated polyester, and the component B comprises an isocyanate curing agent, a solvent, a water absorber (containing or not containing) and a drier (containing or not containing), wherein a hydroxyl value of the linear saturated polyester is between 20 and 36mgKOH/g, and an acid value is between 10 and 30mgKOH/g. The bicomponent polyurethane coating is particularly applicable to a middle coating for the coating of the surfaces of automobiles, further solves the problem of inter-layer adhesion of the middle coating and an anti-corrosive primer and a finishing coat, and strengthens the stone chip resistance and the shock resistance of coatings at the same time.

The invention discloses a boiling resistant polyurethane adhesive and method for preparing same, wherein the adhesive comprises by weight ratio 50-90% of main component and 10-50% of curing agent, the main component comprises (A) polyether polyol with hydroxyl value being 10-30mgKOH/g and (B) polyester polyol with hydroxyl value being 30-100mgKOH/g, the curing agent is polyisocyanate prepolymer. The adhesive can be applied for an intaglio gluing dry-type compounding machine.

Provided is a lubricating oil composition for a refrigerator, the refrigerator using a refrigerant which has a low global warming potential and is applicable to, in particular, current car air conditioning systems or the like, that is, the refrigerant including at least one kind of fluorine-containing organic compounds selected from compounds represented by the following molecular formula (A) or including a combination of the fluorine-containing organic compound and a saturated fluorinated hydrocarbon compound,

C_pO_qF_rR_s  (A)

where: R represents Cl, Br, I, or H; p represents an integer of 1 to 6, q represents an integer of 0 to 2, r represents an integer of 1 to 14, and s represents an integer of 0 to 13; and provided that, when q represents 0, p represents 2 to 6 and one or more carbon-carbon unsaturated bonds are included in molecules, in which a base oil contained in the composition includes as a main component a polyvinyl ether derivative having a hydroxyl value of 17 mgKOH/g or less.

A gas-barrier laminate comprises a plastic substrate (A), an inorganic thin film (B) formed on at least one surface of the plastic substrate (A), and a polyester-based resin layer (C) formed by applying a coating material containing a polyester-based resin on a surface of the inorganic thin film (B), wherein the polyester-based resin has a glass transition temperature of 50 to 70° C., a molecular weight of 1500 to 15000 and a hydroxyl value of 10 to 60 mg KOH/g, and the gas-barrier laminate has an oxygen permeability of not more than 5 cc/m²/day/atm and a water vapor permeability of not more than 5 g/m²/day. The gas-barrier laminate of the present invention is excellent in printability (in particular, gradation printability), is free from deterioration in gas-barrier property, namely is excellent in gas-barrier property, even after providing a printed layer thereon, and further exhibits an excellent adhesion between the plastic substrate (A) and the inorganic thin film (B) even after being subjected to retort treatments.

A lubricating oil composition for refrigerators comprising a base oil which comprises as a main component a polyol ester compound obtained from a polyhydric alcohol selected from among pentaerythritol, dipentaerythritol, trimethylolpropane, and neopentyl glycol and a C₄ to C₂₀ aliphatic monocarboxylic acid and which has an acid value of 0.02 mgKOH/g or less and a hydroxyl value of 5 mgKOH/g or less. A compressor using the lubricating composition. The lubricating oil composition is applicable to such refrigerators that use a refrigerant having a specific structure, such as an unsaturated fluorinated hydrocarbon compound, and being usable in current car air conditioner systems, and has excellent compatibility with the refrigerant, good sealing properties, capability of imparting a low coefficient of friction to sliding members and, yet, excellent stability. The compressor uses the lubricating composition.

The present invention relates to a curable resin composition comprising a polyol (A) having an average hydroxyl value of 200 to 1500 mg KOH/g, a polyisocyanate (B), and polymer fine particles (C), and a curable resin composition comprising a polyol (A), a polyisocyanate (B), and polymer fine particles (C), wherein the polyol (A) comprises a polyester polyol (a2) as an essential component, and the amount of the polyester polyol (a2) is not less than 20 parts by mass per 100 parts by mass of the polyol(A).

The invention relates to a method for preparing polyol which is epoxidised by soybean oil and further preparing polyurethane foam plastic, wherein the preparation technical of polyol comprises the procedures as follows: first, preparing epoxy soybean oil by peroxy acid home position generation method of soybean oil, the epoxy value is between 2.0 and 7.0, and then preparing soybean oil polyol by catalyzing epoxy soybean oil under acid or alkaline. The hydroxyl value of polyol is between 100 and 700 mgKOH/g and the viscosity can be controlled by changing distilling temperature. The polyol replaces polyether or polyester polyol to synthesize polyurethane foam plastic which can be applied in the insulation material and the like. The invention is characterized in adopting acid or alkaline as catalyst to catalyze ring-opening reaction and obtaining polyol of different viscosities through different distilling temperature.

The invention discloses elastic polyurethane silver paint. Main paint of the elastic polyurethane silver paint is prepared from compositions according to the following weight proportion: 65 to 85 percent of a hydroxy acrylic acid resin, 2 to 5 percent of 20 percent CAB381-0.5, 0.3 to 0.5 percent of a dispersant, 0.4 to 0.6 percent of an anti-settling agent, 0.3 to 0.5 percent of a flatting agent, 0.4 to 0.8 percent of wax powder, 7 to 10 percent of non-leafing aluminum paste, 7 to 10 percent of dimethylbenzene, and 15 to 22 percent of mixed solvent; a curing agent of the elastic polyurethane silver paint is formed by mixing compositions according to the following weight percent: 75 percent of elastic HDI curing agent, and 25 percent of absolute butyl acetate; and the weight proportion of the main paint to the curing agent is calculated based on a hydroxyl value of acrylic acid resin and the NCO content of the curing agent, and OH/NCO is equal to 1 to (1.05-1.15). The elastic polyurethane silver paint has excellent weather resistance, stain resistance, scrubbing resistance and decoration property, is a coating variety with excellent performance which is second only to fluorocarbon paint, also has good elasticity at normal temperature and low temperature, can resist fine cracks, can prevent cracks on the surface of a coating caused by the fine cracks of a putty layer, and can also be used as finish for a complete anti-cracking aluminum-imitation plate coating system that flexible putty is matched with an elastic primer and an elastic middle coating.

The present invention relates to a H-grade low-temp. direct-welding enamelled wire enamel, said enamel liquor mainly includes three portions of hydroxyl component, closed type isocyanate component and solvent. The hydroxyl component is formed from raw materials of dihydric alcohol terephthate or amidoimide dihydric alcohol, new pentanediol or 2-methyl-1,3-propanedio, glycerine, 1,1,1-trihydroxymethyl propane, tri(alpha-hydroxyethyl) isocyanate, adipic acid and phthalic anhydride. The acid value of polyester polybasic alcohol is less than 2, hydroxy value is 70-250, number-average molecular weight is 2000-7000 and molecualr weight distribution index is 2-3. The isocyanate component is made up by using general raw material TDI and MDI through the processes of cyclic self-polymerization or addition with small quantity of tribasic alcohol and closing with dimethyl phenol.

The invention relates to a manufacturing method of the vegetable oil polyalcohol which can be used to make various polyurethane rigid foam materials. It uses vegetable oil and low-substituted fatty amine and/or polyalcohol to act with alkali. The hydroxyl value of the formed polyalcohol is 200-700 mgKOH/g. It has the advantage of simple technology and convenient post processing. And it is fit for industrialized large scale production.

The present invention provides an aqueous resin composition that can be utilized in a wide variety of fields including paints for vehicles, paints for cans, paints for the outer facings of buildings, adhesives, inks, impregnating agents for fibers and paper, and sealing agents and the like, wherein the aqueous resin composition comprises a polyester resin (A) having an acid value from 10 to 50 and a hydroxyl value from 20 to 150, a vinyl modified polyester resin (B) having an acid value from 20 to 100 and a hydroxyl value from 20 to 150, and a curing agent (C).

The invention relates to the synthesis of novel phosphorus-containing halogen-containing response-type flame-retarding polyester polyol, and an application of the flame-retarding polyester polyol in polyurethane. The flame-retarding polyester polyol is formed from halogen-containing polyhydric alcohol and phosphorus oxychloride through a condensation polymerization reaction. The hydroxyl value ofthe obtained flame-retarding polyester polyol is 50-500mgKOH/g. The flame-retarding polyester polyol has advantages such as good fluidity, high reaction activity, and good compatibility with other compounds such as polyether glycol and polyester polyol. When the flame-retarding polyester polyol is applied in rigid polyurethane foam, flexible polyurethane foam, polyurethane elastomer or other polyurethane materials, flame-retarding capacities of the materials can be greatly improved, and migration does not occur, such that a purpose of permanent flame-retardance is achieved.