3924results about How to "Good solvent resistance" patented technology

An improved seal member is provided as a part of an electrochromic device to bond two glass elements together in a spaced-apart relationship. In one embodiment the seal member provides improved adhesion to a reflector/electrode on the third surface of an electrochromic mirror, or to a layer of metal on the second or third surface for an electrochromic light filter. This seal member comprises a mixture of an organic resin sealing system and an adhesion promoter, where the adhesion promotor comprises a first and a second region, where the first region interacts with the reflector/electrode or the metal layer, and a second region that interacts with the organic resin sealing system, and may even chemically react with the organic resin sealing system. In another embodiment the seal member is provided with a coefficient of thermal expansion that is closer to glass than a standard epoxy sealing system.

The invention relates to a nanocomposite ice-coating-proof paint having properties of superhydrophobicity and low adhesive strength and a preparation method thereof. The nanocomposite ice-coating-proof paint is characterized by comprising such raw materials, by mass, as 3%-30% of a fluorine-containing polyacrylate copolymer, 40%-80% of a solvent, 0.05%-1.5% of a defoamer, 0.05%-1% of an anti-setting agent, 1%-15% of nanoparticles, and 1%-20% of a crosslinking-curing agent. Film thickness of an ice-coating-proof coating prepared by adopting the nanocomposite ice-coating-proof paint provided by the invention is 5-10 mum, the water contact angle is over 150 degrees and the maximum angle is up to 169 degrees, and the adhesive strength of ice on the coating surface is 1.43*10<-2>MPa. The coating has a significant effect on ice-coating proofing, and can be used for preventing ice-coating on such components as telegraph pole towers, heat pump air-conditioners, low-temperature refrigeration devices, aircraft components, and the like.

The invention discloses a composite type high-conductivity polymer material and a preparation method thereof, which belongs to the technical field of new materials. The composite type high-conductivity polymer material is characterized by comprising the following raw materials in percentage by weight: 40-62 wt% of base resin compositions, 18-25 wt% of super conductive carbon black, 10-30 wt% of rubber filling oil, 1-3 wt% of low molecular wax, 0.2-0.8 wt% of fluoroelastomer processing aid (PPA), 0.5-2 wt% of lubricant, 1.5-3 wt% of inorganic filler and 0.5-2.5 wt% of other aids. The compositetype high-conductivity polymer material has the advantages of excellent high conductivity, environmental stress cracking resistance, weatherability, ozone resistance, ultraviolet resistance, favorable high temperature resistance, high impact resistance, oil resistance, solvent resistance and mechanical property, and can be used as an environment-friendly conductive polymer sheath material of an combined through earth line, a metal anticorrosive material of other ground cable, a conductive plastic cladding material of a conductive plastic cable positive wire, an optical cable flexible sheath material, and the like.

The invention provides a method for preparing synthetic leather and the synthetic leather prepared by the method. The method comprises the following steps: (1) coating slurry containing surface waterborne polyurethane resin on the surface of release paper, and drying to form a finishing coat; (2) mixing and foaming the slurry containing the foaming waterborne polyurethane resin with air by using a foaming machine, and coating the foamed slurry on the surface of the finishing layer, and drying to form a medium foaming layer; and (3) adhering the surface of the foaming layer and a basic fabric by using an adhesive containing waterborne polyurethane resin, and drying. The method uses the waterborne resin foaming layer to replace the Base leather manufacturing process, avoids using toxic and harmful organic solvents, such as dimetbyl formamide (DMF), toluene and the like, solves the pollution problem in the synthetic leather industry, and realizes clean manufacture of the synthetic leather.

A scale for an apparatus for measuring displacement is enclosed. It comprises a scale member having a plurality of rectangular gratings arranged in a periodic pattern on the glass epoxy substrate and the like, a coating layer covered on the side of the scale member on which a plural of the rectangular gratings are formed, a scale cover (film layer) which functions as a protective layer, and a scale forming material bonded to the outer portion of the coating layer by an adhesive layer so as to keep contaminants, oil or particles from intruding between the rectangular grating and the adhesive layer, for example an adhesive tape and the like.

The invention refers to a high-solid content acrylate micro-latex, its making method and its application to carpentry dope. It adopts the technique of half-continuous starvation feeding, and is obtained by the polymerizing method of seed latex. It leads into cross-linking groups in the course of polymerization such as amidogen, acetoacetyl and amido, depends on the reaction of the groups of form film, gets painting film with cross-linking construction, and improves the water and solvent resistance of the painting film.

The present invention provides a conductive composition comprising (i) a cyano group-containing polymer compound which is a copolymer of a cyano group-containing monomer and a vinyl group-containing monomer, and n-conjugated conductive polymer.

The invention provides a UV curing packaging adhesive for a liquid crystal display. Based on 100 weight parts, the adhesive consists of following components: 40 to 70 parts of prepolymer, 20 to 50 parts of active diluent monomer, 1 to 8 parts of photoinitiator, and 0.1 to 5 parts of assistant. The prepolymer is one or a mixture of more of the urethane acrylate, epoxy acrylate and polyster acrylate. The UV curing packaging adhesive for the liquid crystal display has the characteristics of high curing speed, low shrinkage rate and excellent damp heat resistance.

The invention relates to a preparation method of a water-based polyurethane/nano-silicon dioxide composite emulsion, which comprises the following steps: uniformly mixing and stirring ethyl orthosilicate, absolute ethyl alcohol and octadecyl trimethyl ammonium chloride for reacting to obtain nano-silicon dioxide sol; heating polyglycol, and then, adding diisocyanate and dibutyltin dilaurate for reacting to form polyurethane prepolymer; adding a hydrophilic chain extender and a cross-linking agent into the polyurethane prepolymer for carrying out chain extending reaction, adding organic base for regulating the pH value to be 7.0-8.0, and then, adding deionized water to obtain 30% of water-based polyurethane emulsion; and mixing the nano-silicon dioxide sol and the water-based polyurethane emulsion in a water bath, and carrying out ultrasonic treatment to obtain the water-based polyurethane/nano-silicon dioxide composite emulsion. Harmful solvents and emulsifying agents do not need to be added in the preparation process of the invention, thereby solving the problems of polluting environment and injuring operators.

The invention discloses an organosilicon modified silica sol/polyacrylate composite emulsion and its preparation method. The emulsion comprises the following raw materials, by mass, 30-55 parts of deionized water, 20-65 parts of a modified silica sol, 2-15 parts of a core acrylate monomer, 20-60 parts of a shell acrylate monomer, 0.1-3.0 parts of organosilicon, 0.1-2.5 parts of an emulsifier, 0.02-1.5 parts of an initiator, and 0.01-2.0 parts of sodium bicarbonate, wherein the Si (by SiO2) content in the organosilicon modified silica sol/polyacrylate composite emulsion is 15-25% by mass. The emulsion which has an excellent appearance is a white emulsion with obvious blue lights. A coat of the emulsion is transparent and smooth, and has a hardness reaching 5-6H and an adhesion being 0-1 level. The coat has an excellent water resistance, so the coat does not have whitening and foaming phenomena after immersed in water for 7-10 days; the coat has no changes after resisting neutral salt fog for 15-20 days; and the solvent wiping resistance of the coat can pass an MEK test 180-200 times.

A vinylidene fluoride polymer binder solution for forming an electrode for a non-aqueous-type battery is formed by adding an acid, preferably an organic acid, as a stabilizer to a solution of a vinylidene fluoride polymer in an organic solvent. The acid is preferably added in an amount sufficient to ensure a pH of at most 9 when measured with respect to a 10-times dilution of the binder solution with deionized water. The acid addition is effective for preventing a problematic viscosity increase in the binder solution and also gelling of an electrode-forming composition formed by adding a powdery electrode material in the binder solution.

The invention relates to a method for preparing an organosilicon and nano-silicon dioxide modified acrylic resin soap-free emulsion. According to the method, a reactive emulsifier is used to replace a conventional emulsifier, and the method comprises the steps of: performing soap-free emulsion polymerization on acrylic ester monomers, (methyl) acrylic acid, vinyl silicone oil and alkoxy silane containing double bonds; and then adding ethyl orthosilicate for a sol-gel reaction to obtain the organosilicon and nano-silicon dioxide modified acrylic resin soap-free emulsion. The organosilicon and nano-silicon dioxide modified acrylic resin soap-free emulsion is suitable to be taken as a leather finishing agent. The method can completely eliminate the adverse effect of a small molecular emulsifier on an acrylic resin emulsion finishing agent, introduce good characteristics of organosilicon and nano-silicon dioxide into an acrylic resin, overcome the disadvantages of hot sticking and cold shortness, poor waterproof performance and poor solvent resistance and the like of the acrylic resin, and improve the mechanical property, adhesive force and wear resistance of the acrylic resin.

Systems for initiating the polymerization of acrylic monomers comprising (1) organoborane amine complexes and (2) decomplexers comprising at least one anhydride group. Adhesive compositions prepared from the initiator systems advantageously exhibit low levels of mobile constituents, excellent solvent resistance, and good adhesion to low energy surfaces.

The invention relates to waterproof moisture permeation polyurethane paint used for textiles and a preparation method. The waterproof moisture permeation polyurethane paint is prepared from methyl diphenylene diisocyanate, toluene di-isocyanate, polyether glycol (with the molecular weight of 2000), linear dihydroxylated alkylsiloxane (with the molecular weight of 1000), polyester dihydric alcohol (with the molecular weight of 2000), trimethylolpropane, chain extending agents, sealing compounds, dibutyl tin laurate and solvents through the processes of pre-polymerization reaction, chain extension reaction and sealing reaction. The production process is simple, and the products have the advantages of self-crosslinking effect, soft hand feeling, good cold resistance performance, high moisture permeation performance, high water pressure resistance and little reduction after water pressure resistance washing.

The invention discloses a dynamic polymer material. The dynamic polymer material comprises a product obtained through reaction of the following components: at least one polyol compound containing two or more 1,2-diol motifs or 1,3-diol motifs as well as at least one phenylboronic acid compound containing two or more phenylboronic acid motifs provided with aminomethyl groups in ortho-positions. Dynamic reversible phenylborate bonds are formed through the reaction of the components and then constitute a dynamic cross-linked polymer. The polymer material has reusability and recoverability because of the dynamic reversibility of the special phenylborate bonds; besides, when the polymer material adopting a specific formula receives external force, dynamic bonds break preferentially to have energy dissipation and stress elimination functions, so that the material has good toughness. The material has broad application prospect in the fields of military space equipment, functional paint and coatings, biomimetic materials, biomedical materials and the like.

The invention relates to an epoxy resin modified water-based polyurethane emulsion and a preparation method thereof. The emulsion comprises the following components in percentage by weight: 20 to 40 percent of isophorone diisocyanate, 20 to 40 percent of polyester, 5 to 10 percent of hydrophilic chain extender, 2 to 10 percent of chain extender, 1 to 3 percent of crosslinker, 3 to 10 percent of neutralizing agent, 2 to 10 percent of epoxy resin and 10 to 20 percent of acetone. The preparation method comprises the steps of feed preparation, polyester dehydration, the synthesis and neutralization of prepolymer, and chain extension and emulsification. Compared with the prior art, the epoxy resin modified water-based polyurethane emulsion has the advantages of high hardness of film, good water resistance and solvent resistance and the like, and is widely applied in the field of packaging coatings.

The invention relates to UV cured lithographic ink and purposes thereof. The ink is a compound which comprises the following components by the weight percent: 30 to 50 of polyester acrylic ester, 0 to 15 of epoxy acrylic ester, 2 to 22 of high-viscosity monofunctional polyurethane acrylic ester, 0 to 10 of acrylic monomer, 10 to 15 of photoinitiator, 2 to 5 of filler and 16 to 22 of pigment. The UV curing glue printing ink of the invention can be cured at high speed, can meet the requirements of high-speed packaging, printing and environment protection, does not contain VOC, has little irritation to the human skin, and can be used as lithographic ink for the high-speed printing, and paper and plastic printing of packaging and printing.

Provided is a decorative sheet for three-dimensional processing comprising a support and at least a surface protective layer laminated thereon, wherein the above decorative sheet for three-dimensional processing has a breaking elongation (according to JIS K 7127) exceeding 300% at temperature higher by 40° C. than a thermal deformation temperature of the above support measured by an ASTM D648 method, and the above surface protective layer is obtained by cross-linking and curing an ionizing radiation curable resin composition and has a film thickness of 0.2 to 6.0 μm.

Capable of being provided is a decorative sheet for three-dimensional processing which is improved in a molding property and has good die release and does not produce cracks and scratches on a surface in molding and which is improved as well in an abrasion resistance and a solvent resistance.