80 results about "Polyethylacrylate" patented technology

Blends of amorphous and semicrystalline polymers having shape memory properties were prepared by blending a crystalline polymer such as poly(vinylidene fluoride), polylactide, poly(hydroxxybutyrate), poly(ethylene glycol) polyethylene, polyethylene-co-vinyl acetate, poly(vinyl chloride), poly(vinylidene chloride) and copolymers of poly(vinylidene chloride) and poly(vinyle chloride) and an amorphous polymer such as poly(vinyl acetate), poly methyl acrylate, poly ethyl acrylate, atactic poly methyl methacrylate, isotactic poly methyl methacrylate, syndiotactic poly methyl methacrylate and other poly alkyl methacrylates. The method for preparing the polymeric materials and applications thereof, for example, as smart medical devices, are also disclosed.

Bioactive implant for myocardial regeneration and ventricular chamber support including an elastomeric microporous membrane. The elastomeric microporous membrane being at least one non-degradable polymer and at least one partially degradable polymer. The non-degradable polymer is selected from polyethylacrylate and polyethylacrylate copolymerized with a hydroxyethylacrylate comonomer. The partially degradable polymer is selected from caprolactone 2-(methacryloyloxy)ethyl ester and caprolactone 2-(methacryloyloxy)ethyl ester copolymerized with ethylacrylate. The elastomeric microporous membrane further includes a nanofiber hydrogel, and cells. The bioactive implant, having one or two helical loops, contributes to the restauration of the heart conical shape. Cardiac wrapping by ventricular support bioprostheses of the present invention, having reinforcement bands spatially distributed as helicoids, recovers the sequential contraction of the myocardium resulting in the successive shortening and lengthening of the ventricles, therefore improving the ejection (systolic function) and suction of blood (diastolic function).

Blends of amorphous and semicrystalline polymers having shape memory properties were prepared by blending a crystalline polymer such as poly(vinylidene fluoride), polylactide, poly(hydroxxybutyrate), poly(ethylene glycol) polyethylene, polyethylene-co-vinyl acetate, poly(vinyl chloride), poly(vinylidene chloride) and copolymers of poly(vinylidene chloride) and poly(vinyle chloride) and an amorphous polymer such as poly(vinyl acetate), poly methyl acrylate, poly ethyl acrylate, atactic poly methyl methacrylate, isotactic poly methyl methacrylate, syndiotactic poly methyl methacrylate and other poly alkyl methacrylates. The method for preparing the polymeric materials and applications thereof, for example, as smart medical devices, are also disclosed.

The invention discloses a polymer microsphere encoded by nano-gold and method for preparation, which comprises nano gold particles and ethylene polymer, the ethylene polymer can be polyphenylacetylene, or polymethyl methacryate, of polyacrylonitrile, or polyethylene, or polypropylene, or polyethyl acrylate. The preparation method comprises dissolving the ethylene polymer in organic solvent, forming ethylene polymer solution, dropping into polyvinyl alcohol solution through a droplet formation apparatus, finally volatilizing the organic solvent to obtain the polymer microballoon.

The invention discloses a lubricating oil for motor and a preparation method thereof. The lubricating oil comprises a base oil, an antioxidant, heptadecenyl imidazoline alkenyl succinic acid salt, tricresyl phosphate, polyethyl acrylate, methyl silicone oil, polyethylene oxide, and lithium 12-hydroxystearate, wherein the polyethylene oxide has a weight average molecular weight of 1000-3000, and the polyethyl acrylate has weight average molecular weight of 2000-4000. The lubricating oil has excellent viscosity, kinematic viscosity index and pH value of 6-8l; while the preparation method of the lubricating oil is simple; and the raw materials are easily available.

The invention discloses a preparation method of a reversible photochromic microcapsule material. A three-layer microcapsule material, which takes spiropyrane, cholesterol ester and butyl acrylate graft as a core, polyethyl acrylate as an inner shell and polymethyl methacrylate as an outer shell, is prepared. The photochromic material is grafted with butyl acrylate, so that the stability can be enhanced, the defects that a spiropyrane compound is liable to oxidation and the fatigue resistance is low can be overcome, and cholesterol ester liquid crystal layered molecules are distributed more evenly. The polyethylene acrylate serves as the inner shell, so that the photochromic molecules in the core can be protected well and external stress generated by shearing in the processing process can be avoided. The outermost layer of polymethyl methacrylate has high rigidity, forms a hard shell on the outermost side of the capsule and forms a first protective layer. In addition, the solubility parameter of the polymethyl methacrylate is close to that of PVC, the polymethyl methacrylate and the PVC have high compatibility, the photochromic material can be dispersed into the PVC system uniformlyand the effect can be exerted well.

A lube-oil composition as castor oil consists of decanedioic acid-2-octester 47-50 proportion, polyvinyl glycol-ester sebate 28-30 proportion, methyl-polyacrylate 5.8-6.5 proportion, alkylphenol calcium 5.2-5.5 proportion, mono-succimide or diene-succimide 5.5-6.5 proportion, alkyl amino sulfate calcium orthophosphate 1.4-1.8 proportion, dimeric alkyl monosulfide aromatic amine 5.0-5.4 proportion, benzothiazole or benzotriazole 0.1-0.15 proportion, polyacrylate ethyl ester 0.3-0.5 proportion. It is cheap, non-toxic and low-volatile, has excellent degradative and lubricating performances, higher viscosity index and less consumption.

The invention discloses a modified polyvinyl chloride cable material with favorable antioxidation and anti-aging effects. The invention is characterized in that the polyvinyl chloride cable material is prepared from the following raw materials in parts by weight: 13-15 parts of carbon nanotube, 12-14 parts of polyethylacrylate, 1.2-1.3 parts of titanate coupling agent TC-F, 5-7 parts of flame retardant DOPO, 0.03-0.04 part of lauroyl peroxide, 67-70 parts of polyvinyl chloride resin SG, 10-12 parts of light calcium carbonate, 1-1.2 parts of dimethyl fumarate, 8-10 parts of DBP (dibutyl phthalate), 2-3 parts of polyethylene wax, 0.5-0.8 part of bis thiodipropionic acid, 0.8-1.2 parts of 2,6-di-tert-butyl-4-methylphenol, 2-3 parts of monoglyceryl stearate and 7-9 parts of assistant. The formula is special, and the carbon-nanotube-base polymer is added into the cable material to enhance the antistatic property and flame retardancy of the polyvinyl chloride. The 2,6-di-tert-butyl-4-methylphenol and the like are added to obviously enhance the antioxidation and anti-aging effects.

The invention relates to a high polymer material formulation of three-dimensional gold stamping electrified aluminium hot stamping foil coating and a preparation method thereof. The high polymer material formulation comprises the components based on the parts by weight: 10-20 parts of modified polyurethane, 1-5 parts of polyformaldehyde, 5-10 parts of poly ethyl acrylate, 5-10 parts of poly alkylene oxide resin, 5-15 parts of cellulosic resin, 8-20 parts of acrylic resin, 30-60 parts of butanone, 5-10 parts of acetic ether, 5-10 parts of n-propyl acetate and 1-20 parts of polyvinyl butyral. The preparation method comprises: 1) according to the requirement of the formulation, firstly putting all solvents into a reaction kettle, heating to 20-45 DEG C and then stirring; 2) keeping stirring, sequentially putting the modified polyurethane, the polyformaldehyde, the poly ethyl acrylate, the poly alkylene oxide resin, the cellulosic resin, the acrylic resin and the polyvinyl butyral into the reaction kettle according to the proportion, and stirring for 0.5-2.0h; 3) after all solid is dissolved and evenly mixed together, stopping the blend and curing for 3-5h; 4) measuring the content of the solid and adjusting to theoretical value; and 5) slowly stirring and cooling to 20 DEG C. The invention has the characteristics of simple preparation technique, clear three-dimensional hot stamping, good effect of stamping, good ductility of a formed film of the product and the like.

Bioactive implant for myocardial regeneration and ventricular chamber support including an elastomeric microporous membrane. The elastomeric microporous membrane being at least one non-degradable polymer and at least one partially degradable polymer. The non-degradable polymer is selected from polyethylacrylate and polyethylacrylate copolymerized with a hydroxyethylacrylate comonomer. The partially degradable polymer is selected from caprolactone 2-(methacryloyloxy)ethyl ester and caprolactone 2-(methacryloyloxy)ethyl ester copolymerized with ethylacrylate. The elastomeric microporous membrane further includes a nanofiber hydrogel, and cells. The bioactive implant, having one or two helical loops, contributes to the restauration of the heart conical shape. Cardiac wrapping by ventricular support bioprostheses of the present invention, having reinforcement bands spatially distributed as helicoids, recovers the sequential contraction of the myocardium resulting in the successive shortening and lengthening of the ventricles, therefore improving the ejection (systolic function) and suction of blood (diastolic function).