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255 results about "Isobornyl methacrylate" patented technology

Isobornyl methacrylate is a minor monomer limited to use only in plastic articles intended for repeated use in contact with food. 21 CFR 177.1010; U.S. National Archives and Records Administration's Electronic Code of Federal Regulations.

Aqueous acrylic resin, and preparation method and application thereof

The invention discloses an aqueous acrylic resin, and a preparation method and an application thereof. An efficient emulsifier and an improved emulsion polymerization method are used for realizing the preparation of an aqueous emulsion; a novel polymerized monomer, namely, isobornyl methacrylate is added for overcoming the defect of brittleness of high Tg point resin; and a curing agent with certain components is added before the coating operation is performed, so that the temperature tolerance of the resin is obviously increased and the problem of mold-pressing at higher temperature of the resin is solved. The harm to environment and human health caused by an organic solvent during a use process is avoided and certain cost is saved, by using the aqueous acrylic resin. The novel polymerized monomer, namely, isobornyl methacrylate is added for solving the problem of applying acrylic resins to a laser hot-stamping foil information layer, an excellent toughening function is achieved and the mold-pressing implementation of the resin is increased. Under the action of the applied efficient emulsifier and the improved emulsion polymerization method, the prepared resin has excellent physical and chemical properties as well as storage and use stability both reaching the production standard.
Owner:佛山市南海高拓包装材料有限公司

Polymethacrylate copolymer and photodiffusion section bar prepared by adopting same as raw material

The invention belongs to the field of preparation of optical materials and discloses a polymethacrylate copolymer, a photodiffusion section bar prepared by adopting the same as a raw material, as well as preparation methods and applications of the polymethacrylate copolymer and the photodiffusion section bar. The copolymer comprises the following components in parts by weight: 20-50 parts of methyl methacrylate, 2-15 parts of methacrylic acid and 40-75 parts of isobornyl methacrylate. The copolymer is prepared by carrying out suspension copolymerization or solution polymerization on the components, and the weight-average molecular weight of the product is 60,000-300,000. The photodiffusion section bar is prepared by adopting the method that the copolymer is mixed with a light diffusant of 0.1-5 percent, and then the obtained mixture is molten, granulated and shaped to prepare the photodiffusion section bar with a thickness of 0.5-4mm, wherein the light diffusant comprises crosslinking siloxane polymer particles, crosslinking polystyrene particles, crosslinking acrylic acid polymer particles, titanium dioxide particles or silicon dioxide particles. The section bar has good light diffusivity and light transmittance, can restrain a light source from transmitting and can meet the fabrication requirement of light guide section bars for liquid crystal displays and LED light sources.
Owner:GUANGZHOU KEYUAN INNOVATIVE MATERIALS

Photocureable silicon nitride ceramic paste and preparation method thereof

The invention discloses a photocureable silicon nitride ceramic paste and a preparation method thereof. According to the invention, stearic acid powder and a premixed solution are additionally used asraw materials on the basis of ceramic powder, wherein the premixed solution is composed of a plurality of substances. According to the invention, through addition of the stearic acid powder, the compatibility of the ceramic powder and subsequent resin can be improved, and the solid phase content of silicon nitride ceramic can be easily improved; through optimized selection of all substances in the premixed solution, resin with high refractive index can be introduced into a resin system to reduce the difference of refractive indexes of the ceramic powder and the resin, so the single-layer curing depth of a ceramic paste can be improved; in addition, rigid group containing epoxy resin, isobornyl methacrylate (IBOMA) and the like are added into the resin to reduce shrinkage generated in theprocess of curing; and through optimization of the varieties of all substances, the photocureable ceramic paste provided by the invention has the following advantages: the solid phase content and single-layer curing depth of the isobornyl methacrylate are improved, and the shrinkage amount of the paste photocured into ceramic is reduced.
Owner:NAT INST CORP OF ADDITIVE MFG XIAN

Coloring layer coating suitable for silver alumite hot stamping foils and preparation method thereof

The invention discloses coloring layer coating suitable for silver alumite hot stamping foils and a preparation method thereof. Paint films of silver alumite hot stamping foils in the prior art are prone to efflorescence; in gold stamping, the defects of gold flying, powder falling and the like are prone to happening; thus, hot stamping quality and a production efficiency are affected. The coloring layer coating disclosed by the invention is prepared from the following raw materials in parts by weight: 15 to 25 parts of thermoplastic methacrylic resin, 1 to 5 parts of chloride-acetate resin, 1to 8 parts of styrene-maleic anhydride copolymer, 1 to 10 parts of cellulose acetate butyrate, 1 to 10 parts of methyl isobornyl acrylate, 1 to 5 parts of impact modifier and 50 to 70 parts of solvent. According to the coloring layer coating disclosed by the invention, the impact modifier is added into the formula ingredients, so that paint film toughness is effectively improved; meanwhile, the coloring layer coating has the characteristics of moderate viscosity, good adhesion with aluminum layers, simple production technology easy to control, stable quality, convenience in long-time storageand the like; a coloring layer paint film of alumite containing the coloring layer coating has the characteristics of high glossiness, large hardness, toughness, wear resistance and the like.
Owner:云南玉溪东魅包装材料有限公司

Water-base metallic coating for automotive interior materials and coated article

InactiveUS20070129485A1Excellent in adhesion to substrateGood alkali resistancePaints with free metalsWater basedHigh concentration
An object of the present invention is to provide a water-base metallic coating for automotive interior materials being single-coat metallic finished which is excellent in adhesion to a substrate and fats and oils resistance and is further provided with so high alkali resistance as to be free from being whitened or discolored even by an aqueous high-concentration alkali solution. As a means of achieving this object, the water-base metallic coating for automotive interior materials according to the present invention comprises a metallic pigment and a vehicle, and is characterized in that the vehicle includes: a first water-based hydro-dispersion resin (A) obtained by hydro-dispersing, without using a surfactant, an acrylic resin which indispensably contains isobomyl methacrylate as a monomer component and no styrene and has a theoretical Tg in a range from 80 to 140° C., an acid value in a range from 10 to 25 mgKOH / g, and an SP value in a range from 9.5 to 10.0; and a second water-based hydro-dispersion resin (B) obtained by hydro-dispersing, without using a surfactant, an acid-modified chlorinated polyolefin resin having an acid modification quantity in a range from 1.6 to 2.5% by mass, a chlorine content in a range from 18 to 25%, and a weight average molecular weight in a range from 50,000 to 80,000.
Owner:HONDA MOTOR CO LTD +1
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