16 results about "Vinyl acetate" patented technology

The process of preparing high water solubility polyvinyl alcohol features that vinyl acetate monomer in 50-80 weight portions, methanol in 16-49 weight portions, vinyl monomer containing carboxyl group or amido group in 1-4 and initiator in 0.04-0.08 weight portion are reacted in a reactor equipped with thermometer, stirrer, reflux condensator and water bath at 60-65 deg.c for 3-6 hr; and the resultant is compounded with methanol into 30 % concentration solution and alcoholyzed with sodium hydroxide or potassium hydroxide to obtain high water solubility polyvinyl alcohol.

The invention relates to an ink resin composite used for plastic gravure printing and a preparation method thereof. The ink prepared from the ink resin composite is suitable for the non-polar substrates biaxially oriented polypropylene laminated polyethylene (BOPP) and polyethylene (PE) and the polar substrate polyethylene terephthalate (PET). The preparation method of the ink resin composite is as follows: the in-situ polymerization blending method is adopted to introduce alcohol-soluble polyurethane resin in a reaction system of the ink resin composite. The ink resin composite comprises the following components by weight percent: 30-50% of acetic ether, 8-25.5% of acrylate polymer, 8-25% of vinyl acetate polymer, 2.2-4.5% of styrene polymer, 1.5-2.5% of active functional polymer, 0.5-40% of alcohol-soluble polyurethane resin, 0.1-0.6% of initiator and 6-10% of alcohol diluent. The ink resin composite of the invention has simple preparation method, is green and environmentally friendly and has wide application prospect in the gravure printing ink.

The invention relates to a method for preparing a chloroprene rubber adhesive agent. The current products contain a large amount of methylbenzene and are poisonous. The invention comprises the following steps: firstly adding the chloroprene rubber and chlorinated polyethylene into a mixed solution (the compositions are 120# solvent oil, acetic ether, butanone, acetone and methyl carbonate) and mixing; after being entirely dissolved, filling nitrogen into the reactor; then adding methyl methacrylate and vinyl acetate and heating up to 80-100 DEG C; adding benzoyl peroxide to initiate a polymerization reaction; after 2-3 hours of the polymerization reaction, adding acroleic acid and adding additional benzoyl peroxide to continue reacting for 1-2 hours; after that, stopping the filling of the nitrogen and cooling to 30-50 DEG C; then adding 2,6-ditertiary butyl-p-cresol, mixing and discharging to obtain the chloroprene rubber adhesive agent. Therefore, the chloroprene rubber adhesive agent prepared by the method of the invention is environmental-friendly and has higher bonding strength to EVA soles. The method has the advantages of simple process and can realize large-scale production.

The invention discloses an antibacterial finishing agent, an antibacterial yarn and a preparation method and application of the antibacterial yarn. The antibacterial finishing agent is prepared from the following components in parts by weight: 5-20 parts of antibacterial agent, 5-25 parts of a cationic colouring stabilizer, 10-30 parts of a cationic softener and 10-30 parts of water-based resin, wherein the antibacterial agent is selected from at least one of N-dodecyl-amino glycine betaine-2-cysteamine hydrochloride, 3-trimethoxysilylpropyl octadecyldimethyl-ammoniu chloride, chitosan biguanidine hydrochloride, polyhexamethylene biguanidine hydrochloride and ammonium dihydrogen phosphate; and the water-based resin is selected from at least one of vinyl acetate emulsion resin, polyvinyl alcohol resin, polymethylacrylic acid and polyethylene oxide. The water-based resin adopting the components is capable of improving the hand feeling and the comfort of the yarn; and through common action of the cationic colouring stabilizer, the cationic softener, the water-based resin and the antibacterial agent at the ratio, the yarn has good antibacterial property, the requirements of performance, such as the color fastness and the hand feeling comfort are coordinated, and meanwhile, the antibacterial property, the color fastness and the comfort of the yarn are ensured.

The invention provides a laminated glass intermediate film with shielding capacity and high transparency as well as a preparation method thereof. The laminated glass intermediate film with shielding capacity and high transparency comprises raw materials in percentage by weight as follows: 93.2%-94.7% of EVA (ethylvinylacetate), 0.5%-2% of an inorganic additive, 2%-3% of an organic additive, 0.8%-1.6% of a peroxide crosslinking agent, 0.2%-0.5% of an assistant crosslinker, 0.2%-0.6% of a phosphite antioxidant, 0.2%-0.5% of an HALS (hindered amine light stabilizer) and 0.2%-0.6% of a coupling agent, wherein the content of vinyl acetate in EVA is 28%-33%. The laminated glass intermediate film has excellent shielding effect, has higher glass bonding strength and has good environmental aging resistance.

The invention relates to a nontoxic degradable plastic which is prepared from the following raw materials in parts by weight: 20-30 parts of starch, 3-5 parts of antimicrobial agent, 4-9 parts of ethylene-vinyl acetate copolymer, 2-8 parts of hesperetin, 2-6 parts of dibutyltin dilaurate, 1-4 parts of triphenyl phosphate, 5-10 parts of linear low-density polyethylene, 2-7 parts of polypropylene, 1-5 parts of antioxidant, 8-10 parts of octabromo diphenyl ether, 5-9 parts of terephthalyl alcohol, 2-7 parts of tartaric acid and 5-10 parts of sodium carbonate. The degradable plastic has the advantages of no toxicity or harm and high degradation rate, and does not influence the environment during and after degradation.

The invention discloses a flame-retardant finish paint for furniture. The flame-retardant finish paint comprises a main agent, a curing agent and a diluent, wherein the main agent comprises the following raw material components in parts by weight: 30-38 parts of amino resin, 24-32 parts of acrylic resin, 12-18 parts of vinyl acetate, 0.2-0.6 part of a defoaming agent, 2-5 parts of a flame retardant, 0.4-0.9 part of a dispersant and 0.2-0.4 part of a thixotropic agent; the curing agent comprises the following raw material components in parts by weight: 25-32 parts of a toluene diisocyanate trimer, 14-20 parts of imidodicarbonic acid diamide, and 8-15 parts of butyl acetate; the diluent comprises the following raw material components in parts by weight: 20-27 parts of ethanol, 5-9 parts of paraffin oil, and 32-40 parts of ethyl acetate; and a mass ratio of the main agent, the curing agent and the diluent is 1:(0.25-0.4):(0.55-0.65). The invention provides the flame-retardant finish paintfor furniture which has the following beneficial effects: the finish paint is applied to timber furniture, has very excellent flame-retardant performance, does not contain toxic organic volatiles, belongs to an environment-friendly coating, and is high in impact resistance and excellent in overall performance.

The invention relates to waterborne fireproof paint and a preparation method thereof. The waterborne fireproof paint is prepared from the following ingredients including 250HBR, TEGO 500, OROTAN 1124,BYK 022, 25-percent ammonium hydroxide, titanium dioxide, ammonium polyphosphate, tripolycyanamide, pentaerythritol, chlorcosane, modified vinyl acetate copolymer emulsion, optical stabilizing agentsBASF 1130 and de-ionized water. According to the preparation method, all ingredients are added into the de-ionized water; a mixture M with the fineness being smaller than 60mu m is obtained; then, the modified vinyl acetate copolymer emulsion and the foaming agents BYK 022 are added; finally, the optical stabilizing agents BASF 1130 are added; a finished product is obtained. The waterborne fireproof paint has the advantages that the fire-resistant time is long; the fire-resistant limit is as long as 180min; the impact resistance can reach 55kg.cm; the toughness is 2mm; the water resistance reaches 255h; the adhesion force is 1 grade. The production cost is reduced; the environment resources are saved.

The invention discloses a setting agent used after wool stretch and refinement. The setting agent is characterized by comprising, by weight parts, 3-12 parts of trimethylolmelamine, 0.09-0.8 part of boron fluoride, 1.2-2 parts of vinyl chloride-vinyl acetate resin, 4-8 parts of butanone, 6-12 parts of dicumyl peroxide, 4-6 parts of polystyrene foam plastics and 100-120 parts of water. According tothe setting agent, wool which is stretched and refined can be quickly oxidized, and the goal of quick forming is achieved.

The invention provides nano water-based paint imitating an electroplated coating and a preparation method. The nano water-based paint is prepared from slurry A, slurry B, polyurethane emulsion and vinyl acetate-acrylic emulsion through uniform ultrasonic dispersion. The slurry A is prepared by uniformly dispersing aluminum tripolyphosphate, metal powder, silicon resin, a dispersing agent and deionized water; and the slurry B is prepared by uniformly grinding silica sol, silicone powder, toner, a dispersing agent and deionized water. When the nano water-based paint of the imitation electroplating coating is used for metal, wood products, plastic and the like, a uniform compact coating similar to electroplating can be formed, traditional electroplating can be replaced after paint spraying, the brightness is good, the adhesive force is good, the leveling property is good, the excellent imitation electroplating effect is achieved, and the nano water-based paint of the imitation electroplating coating is suitable for being used in the fields of automobiles, electronic appliances and the like.

The invention relates to a low-odor and low-VOC environment-friendly latex paint. The low-odor and low-VOC environment-friendly latex paint comprises the following components by weight: 30-40 parts ofa film-forming substance, which is mainly a combination of a high-glass-transition-temperature and low-film-forming-temperature modified styrene-acrylic emulsion and a low-film-forming-temperature modified vinyl acetate-acrylic emulsion; 40-45 parts of pigment and filler; 4-6 parts of a paint assistant; and diluting water. The filler comprises a carbon nanotube/tetrapod-like zinc oxide whisker. The invention also discloses a preparation method of the low-odor and low-VOC environment-friendly latex paint. The latex paint provided by the invention has the beneficial effects of absorption and decomposition of formaldehyde, antibacterial properties, low odor and low VOC.

The invention belongs to the technical field of optical adhesives, and particularly relates to a hot-melt optical adhesive with an ultraviolet blocking function and a preparation method thereof, and the hot-melt optical adhesive comprises the following components in parts by weight: 100 parts of a mixed copolymer; 1-5 parts of a coupling agent; 0.2-0.6 part of an antioxidant; 0.1-0.6 part of a light stabilizer; 5-10 parts of a water blocking agent; the mixed copolymer is obtained by reacting an ethylene-vinyl acetate copolymer, a cross-linking agent, an anti-ultraviolet agent, an initiator and a polymerization initiator in a weight part ratio of 100: (5-10): (0.5-1): (1-3): (0.5-1); the anti-ultraviolet agent is composed of 4-methacrylamido salicylic acid and thiazolyl-2 (1H)-pyridone-4-methallyl formate, and the thiazolyl-2 (1H)-pyridone-4-methallyl formate is obtained in the mode that citric acid and 2-aminoethanethiol are subjected to a reaction to obtain an intermediate product, and then the intermediate product is subjected to methallyl alcohol esterification to obtain the thiazolyl-2 (1H)-pyridone-4-methallyl formate. According to the optical adhesive, the optical adhesive has a shielding effect on ultraviolet rays with the wavelength of 320-400 nm in sunlight, so that the damage of most ultraviolet rays to the optical cement is reduced, and the service life of the optical cement is prolonged.