154results about How to "High solids" patented technology

The present invention provides an improved method of producing a stable acid denatured soy/urea adhesive having improved wet and dry strengths, with more efficient production and lower production costs. The method comprises combining urea with soy flour that has been acid treated until denatured and substantially free from urease activity. The soy flour is preferably lowered to a pH of 2.0 to 4.0 for at least 1 minute. Optionally, the method may also include adding a crosslinking agent, diluent or both to the soy flour/urea adhesive and/or adding an emulsified or dispersed polymer. Adhesives and dispersions prepared according to the methods of this invention offer increased stability and strength properties.

A hydroxyacrylic acid emulsion with micro gel core structure is prepared through copolymerization of vinylsilane coupling agent on acrylate monomer to obtain hydrophobic micro gel cores, copolymerization of hydroxyvinyl monomer on acrylate monomer on the surface of said core to become hydrophilic shell, and preparing emulsion. A process for preparing water-soluble dual-component polyurethane used for paint is also disclosed.

The polyurethane is prepared through the reaction between polyol and isocyanate and siloxane modification. The preparation process includes first synthesis of polyurethane prepolymer with end isocyanic radical and the subsequent modification with siloxane, or includes first synthesis of polyurethane prepolymer containing end isocyanic radical with siloxane containing isocyanate and the subsequent modification with siloxane containing active hydrogen. The modified polymer may be produced into paint film of 2-3 mm thickness, shore A hardness not lower than 60, elongation at rupture not smaller than 300 %, stretching strength not lower than 3 MPa and stable storage period of 3-6 months. The present invention is applied in making elastic polyurethane coating.

This invention relates to a high solid acrylic polyurethane water-dispersible resin and method for making same. The solid content of this resin is up to 41-45%, and the resin does not contain free emulsifier and organic solvent. The procedures comprise: first it produces NCO capping polyurethane prepolymer with the ethenyl monomer part of which can be freely polymerized as medium, then obtain a water-dispersible polyurethane coated with ethenyl monomers after neutralization and water dispersion, add in the rest ethenyl monomer and initiator to perform free radical polymerization, to produce the acrylic polyurethane water-dispersible resin with a nuclear shell structure. This resin is characterized of high solid content, fast drying speed, stable storage, filming at room temperature, good adhesive force, flexility, hardness, and water resistance, low VOC content, and reasonable quality and cost ratio, and can be used in producing high-grade woodware coating material, water leather paint, and surface coating of plastic, metal, scrim and automobile.

The invention relates to a high-reflective acrylic polyurethane coating composition which comprises a component A and a component B in a mass part ratio of 20;3. The component A in 100 parts by mass comprises the following materials in part by mass: 30-50 parts of modified hydroxyl acrylic resin, 2-6 parts of auxiliaries, 35-45 parts of heat reflective pigments, 4-8 parts of aerogel and 10-15 parts of organic solvent. The component B in 100 parts by mass comprises the following materials in part by mass: 75-90 parts of polyisocyanate and 10-25 parts of organic solvent. The modified hydroxyl acrylic resin is obtained by cold-blending modified resin and hydroxyl acrylic resin in a mass part ratio of 1-3: 1; the solid content of the modified hydroxyl acrylic resin is greater than or equals to 75wt%; the particle size of heat reflective pigments ranges from 0.55 micron to 1.2 microns; the particle size of the aerogel ranges from 1 micron to 80 microns; the pore size of the aerogel ranges from 10 nanometers to 20 nanometers; and the heat conductivity coefficient of the aerogel is less than or equals to 0.015W/(m k). The polyisocyanate is one or more of HDI (hexamethylene diisocyanate) biuret, HDI trimer and IPDI (isophorone diisocyanate) trimer curing agents. The high-reflective acrylic polyurethane coating composition is high in reflective insulation quality; and the quantity of VOC (volatile organic compounds) of the high-reflective acrylic polyurethane coating component is low.

The invention provides a monocomponent self-cross-linking epoxy acrylic acid composite emulsion , its preparation method and uses, wherein the emulsion comprises the constituents of epoxy resin, (methyl) acrylic ester, alkenyl carboxyl acid, ethenyl aromatic compound, silicane coupling agent, initiating agent, emulsifying agent, pH regulator, neutralization agent and water. The composite emulsion is prepared through the emulsion polymerization process and by using epoxy propylene acid composite emulsion as the base.

The invention discloses a special polyester resin for priming paint in coil coating. According to the weight parts, the polyester resin comprises alcohol of 30 parts to 40 parts; acid of 30 parts to 40 parts; catalyzer of 0.1 parts; refluxing solvent of 3 parts and diluting solvent of 20 parts. The invention also discloses the preparation method for the special polyester resin for the priming paint in the coil coating. The special polyester resin for the priming paint in the coil coating of the invention has the advantages of good solid parts, low viscosity, quick dry speed, quick flow flat, excellent adhesive force, excellent pliability, excellent pigment wetting dispersilbility and high cloth coating amount, wherein, the advantages of good solid parts, low viscosity and high cloth coating amount are especially hard to be achieved by the ordinary polyester resin for the priming paint; simultaneously, the special polyester resin conforms to the energy conservation requirement advocated by the state. The preparation method for the special polyester resin for the priming paint in the coil coating is simple, and the requirements for the production facilities are not high, thus the special polyester resin is suitable for large-scale production.

This invention relates to a process for producing high molecular weight (HMW) and ultra-high molecular weight (UHMW) acrylic polymers having unique polymer tacticity and exhibiting enhanced thermal and mechanical properties. This process comprises polymerizing ethylenically unsaturated monomer in the presence of a free radical initiator that results in a “living-like polymer” utilizing a multi-step approach. In conducting the process of this invention the “living-like polymer” is further dissolved in a liquid carrier, wherein the said liquid carrier is a reactive diluent that can be reacted subsequently by an addition polymerization process to create a block- or multi-block, copolymer or homopolymer. This process can be progressively repeated with the same or various different reactive diluents to generate desired architecture and molecular weight polymer(s) which can be used in further processing procedures to be manufactured directly into finished articles.

The invention relates to a preparation method of an epoxy glass flake coating for an oceanic tidal range/splash zone. The epoxy glass flake coating is composed of a component A and a component B, the component A contains low molecular weight epoxy resin, bisphenol F macromolecular epoxy resin, an epoxy active diluent, hydrogenated liquid petroleum resin, a solvent, an antifoaming agent, an antirust pigment, a coupling agent, a composite functional thixotropic agent, modified glass flakes and a modified filler, and the component B contains an amine composite curing agent and the coupling agent. The preparation method comprises the following steps: confirming the composition and weight part proportions of all raw materials, preparing the composite functional thixotropic agent, preparing the modified glass flakes, preparing the modified filler, preparing the amine composite curing agent, preparing the component A, preparing the component B, and blending the component A with the component B in proportion to prepare the epoxy glass flake coating. The epoxy glass flake coating has the advantages of high solid content, low viscosity, small use amount of the organic solvent, and great reduction of the volatilization of VOCs in the production, construction and curing process of the coating.

A method of forming a low gloss, high solids polyurea coating containing very low volatile organic compounds (VOC) in the coating composition. The low volatile content not only makes the coating environmentally friendly but allows it to be applied at variable thickness levels and over a wide variety of environmental conditions. The coating composition is comprised of an isocyanate reactive agent containing a secondary diamine, a polyisocyanate, a gloss reducing agent and a viscosity modifier. The gloss reducing agent is generally pre-mixed into an isocyanate reactive agent containing a secondary diamine and/or polyisocyanate containing the viscosity modifier before mixing the two components together to form a low gloss polyurea coating.

The invention discloses a two-component water-based hydroxyl acrylic coating composed of a component A and a component B, wherein the weight ratio of the component A to the component B is 1 to (1-3). The component A comprises the raw materials in parts by weight: 40-80 parts of modified hydroxyl acrylic resin, 5-20 parts of water-based hydroxyl fluorosilicone acrylic resin, 5-15 parts of a water-based nano alumina dispersion body, 5-10 parts of a water-based nano silica dispersion body, 2-6 parts of ethylene glycol monoethyl ether acetate, 1-3 parts of a levelling agent BYK306, 0.2-0.8 part of a catalyst dibutyltin dilaurate, and 1-5 parts of xylene. The component B comprises the raw materials in parts by weight: 10-20 parts of a hexamethylene diisocyanate trimer, 1-5 parts of HDI biuret, and 20-30 parts of a diluent. The two-component water-based hydroxyl acrylic coating has good water resistance and excellent corrosion resistance.

The invention relates to a solvent sprayable contact adhesive composition comprising (i) one or more styrenic block copolymer compositions, (ii) a tackifying resin, (iii) a solvent and (iv) optionally one or more plasticizers, wherein said styrenic block copolymer composition comprises a selectively hydrogenated and functionalized controlled distribution block copolymer having monoalkenyl arene end blocks and hydrogenated controlled distribution mid blocks containing certain mixtures of monoalkenyl arene and conjugated diene.

The invention provides the preparation method of a water intermediate coating suitable for automobile factories and repair. The coating prepared by the method is universally suitable for automobile factories and repair. The preparation method comprises the following steps and process conditions: (1) synthesizing water-dispersible resin; (2) modifying hydrophilic polyisocyanate; (3) preparing the intermediate coating for automobile factories and repair; and (4) mixing the intermediate coating prepared in step (3) with the hydrophilic end-terminated polyisocyanate synthesized in step (2) to obtain the final product. The prepared intermediate coating has high applicability and is suitable for factory manufacturing and for repair. The intermediate coating is very friendly to the environment and greatly reduces the use of and the dependence on organic solvent, thus effectively conserving the energy resources. Additionally, the coating has the advantages of excellent flexibility, particularly high chip resistance and water resistance, smooth and fine coating surface and excellent interlayer adhesive force with the prime coat and the top coat.

Pigment suitable for use in coating compositions for inkjet recording media. Surfaces of an inorganic particulate are interacted with a water-soluble polyvalent metal salt in an aqueous medium. The treated particle surfaces have a significant cationic surface charge imparted to them. The salt is a salt of a metal of Group II or Group III of the Periodic Table. Inkjet recording media treated with a coating composition containing the above pigment provide high density, fast-drying, and non-feathering ink images with suitable water fastness, while the coating compositions also offer cost advantages and improved rheology at higher pigment levels over coatings based on silica pigments.

The invention discloses a neoprene adhesive. The neoprene adhesive is prepared from, by weight, 15-24 parts of neoprene rubber, 4-13 parts of tackifying resin, 0.4-1.5 parts of active magnesium oxide, 0.3-1.0 part of antiager, 55-70 parts of organic solvent, 1-8 parts of solids and 0.1-1.3 parts of coupling agent. By the adoption of the technical scheme, the neoprene adhesive has the following advantages that the neoprene rubber, the tackifying resin, the solids, the antiager and other additives are combined, and the neoprene adhesive is good in weatherability, high in solid content, low in VOC content, more environmentally friendly, stable in viscosity, non-layering and excellent in bonding performance. The invention further discloses a preparation method of the neoprene adhesive.