2548results about "Emulsion paints" patented technology

A coating composition is disclosed which comprises an aqueous polymeric matrix, a hydrophilic polymer, a colloidal metal oxide and a crosslinker. The coating composition when applied on medical devices is hydrophilic, shows improved lubricity, abrasion resistance and substrate adhesion on metallic or plastic substrates. The coating also shows improved water sheeting thus providing the coated substrates with anti-fog properties. The coating absorbs aqueous dye or stain solutions making the substrate suitable for printing.

There are disclosed a water-absorbent resin composition and its production process, wherein the water-absorbent resin composition causes little gel-blocking and is excellent in the liquid permeability and liquid diffusibility and is high also in the absorption performances and further is strong also against the physical damage; and there are further disclosed a water-absorbent resin composition and its production process, wherein the water-absorbent resin composition has the following further advantages, in addition to the above, of involving little segregation of the metal compound and further having a dust prevention effect. One of water-absorbent resin compositions according to the present invention is a water-absorbent resin composition comprising water-absorbent resin particles obtained by polymerizing a monomer including acrylic acid and/or its salt, with the composition having a mass-average particle diameter of 100 to 600 μm and comprising water-soluble polyvalent metal salt particles and the water-absorbent resin particles that have been surface-crosslinked.

There is disclosed a water-absorbing agent which combines both performances of the capillary suction force and the liquid permeability. This water-absorbing agent is a particulate water-absorbing agent comprising water-absorbent resin particles (α) and a liquid-permeability-enhancing agent (β), wherein the water-absorbent resin particles (α) are surface-crosslink-treated particles of a crosslinked polymer of a monomer including acrylic acid and/or its salt; with the water-absorbing agent being characterized in that the particulate water-absorbing agent has: a mass-average particle diameter (D50) in the range of 234 to 394 gm, a logarithmic standard deviation (σξY) of a particle diameter distribution in the range of 0.25 to 0.45, an absorption capacity without load (CRC) of not less than 15 g/g, and a water-extractable component content of not higher than 15 mass %; and further a liquid-permeability-enhancing agent (β) content in the range of 0.01 to 5 mass parts per 100 mass parts of the water-absorbent resin particles (α).

Compositions for scavenging oxygen are disclosed. These compositions comprise condensation copolymers comprising predominantly polyester segments and an oxygen scavenging amount of polyolefin oligomer segments. The polyester segments comprise segments derived from typical bottling and packaging polyesters such as PET and PEN. The copolymers are preferably formed by transesterification during reactive extrusion and typically comprise about 0.5 to about 12 wt % of polyolefin oligomer segments. The copolycondensates are capable of absorbing at least 0.4 cc of oxygen per gram of copolymer in the solid state at ambient temperatures and are typically used as layers in films, liners, cups, wraps, bottles, etc. Use of these oxygen scavenging compositions in bottles provides a clear and rigid bottle similar in appearance to unmodified polyester bottles. In a series of preferred embodiments, bottles fabricated with the oxygen scavenging copolycondensates of this invention are over 99.4 wt % polyester and suitable for recycle with other polyester bottles.

A rheology modifying copolymer composition containing a cross-linked copolymer of unsaturated carboxylic acid, a hydrophobic monomer, a hydrophobic chain transfer agent, a cross linking agent, and, optionally, a steric stabilizer, provides increased viscosity in aqueous electrolyte-containing environments.

The production method of a water absorbent resin composition including a particulate water absorbent resin, wherein: 95 wt % or more of particles whose particle diameter is less than 850 μm and not less, than 106 μm are contained, and a weight average particle diameter of the particles is less than 500 μm and not less than 300 μm and a logarithmic standard deviation (σξ) of a particle size distribution is 0.45 or less, and a water-soluble component of the water absorbent composition is 35 wt % or less, and a multivalent metal component is contained, and an extraction rate of the multivalent metal component is 5.0 wt % or more and less than 100 wt %, thereby providing the water absorbent resin composition, free from any coagulation of particles in high humidity, which has superior absorbent property in terms of an absorbency and a diffusing absorbency under pressure.

A kit for dental adhesive comprising a radical polymerizable monomer having an acid group in the molecule, a photosensitizer and/or a peroxide, a water-soluble organic solvent, an organic sulfinic acid and/or a salt thereof or a barbituric acid and/or a derivative thereof, and water. The kit may further comprises a radical polymerizable monomer which has no acid group and is insoluble or hardly soluble in water, an amine compound, a silane coupling agent and a 1,3,5-triazine-2,4-dithion derivative. By using this kit, the adhesive composition can be applied directly to a dentine without conducting a pretreatment.

There is disclosed a process for continuous production of a water-absorbent resin product by which the water-absorbent resin product having high properties can continuously be produced easily and inexpensively with stable constant quality. In addition, there is disclosed a water-absorbent resin product having high properties and being stable in quality. The process comprises the following steps of: (A) measuring a water-absorbent resin by its predetermined property and/or its predetermined component content, wherein the water-absorbent resin comes being continuously produced via a classification step and/or a surface-modifying step; (B) separating a predetermined amount of water-absorbent resin (a) from the water-absorbent resin that comes being continuously produced, wherein the water-absorbent resin (a) is a water-absorbent resin which displays not less than a definite value and/or a water-absorbent resin which displays not more than a definite value as to the predetermined property and/or the predetermined component content in accordance with results of the aforementioned measurement; and (C) mixing at least a portion of the aforementioned separated predetermined amount of water-absorbent resin (a) into a water-absorbent resin that comes being continuously produced via a classification step and/or a surface-modifying step on the same or another production line.

The present invention relates to compositions for functional films, and more particularly to compositions for functional films such as a heat ray screening film compatible with hydrolic or alcoholic and anti-hydrolic resin binder, a near infrared screening film, a chrominance correcting film, a conductive film, a magnetic film, a ferromagnetic film, a dielectric film, a ferroelectric film, an electrochromic film, an electroluminescence film, an insulating film, a reflecting film, a reflection preventing film, a catalyst film, a photocatalyst film, a light selectively absorbing film, a hard film, and a heat resisting film, films formed therefrom, and a method of forming the compositions and the films.

A water-based coating composition suitable for preparing hydrophilic surfaces on various articles is provided which includes a supporting polymer having functional moieties capable of undergoing crosslinking reactions, said supporting polymer soluble in or emulsified in an aqueous based medium; and a hydrophilic polymer, said hydrophilic polymer associated with the supporting polymer. The composition is characterized in that, when crosslinked at the functional moieties, the supporting polymer forms a three-dimensional network which substantially minimizes disassociation of the hydrophilic polymer.

The invention discloses an odorless anti-formaldehyde environment-friendly internal wall latex paint and a preparation method thereof. The odorless anti-formaldehyde environment-friendly internal wall latex paint is prepared from the following components in percentage by weight: 1-15% of visible light induced nano titanium dioxide photocatalyst slurry, 15-35% of odorless emulsion, 1-15% of formaldehyde absorbent, 0.5-2% of dispersing agent, 0.2-3% of thickening agent, 0.2-1% of wetting agent, 0.1-1% of defoaming agent, 0.5-5% of film-forming assistant, 0.2-3% of anti-freeze agent, 20-40% of pigment and filler, 0.1-1% of pH regulator, 0.01-0.1% of anticorrosive bactericide and 15-40% of deionized water. The invention adopts an IPS+odorless technique, and the visible light induced nano titanium dioxide photocatalyst and the formaldehyde absorbent are added, thereby achieving the optimal effect of removing formaldehyde and other harmful substances through physical adsorption and chemical decomposition. The invention can be widely used for decorative spraying of various internal walls and other constructions.

The use of high aspect fillers in the production of simulated stone, masonry and brick textured products such as cladding, siding, panels, or other building and construction materials. High aspect fillers increase the dimensional stability, rigidity, thermal and sound insulation. The high aspect fillers may be included into a matrix polymer with or without chemical bonding. The disclosed invention is not limited to products in the building or construction industries and may be applied in the manufacture of a wide variety of products in other industries.

The present invention relates to a top coat composition, which is characterized in that it is applied to a photoresist top surface by using a polymer containing at least one structure represented by the formula [1], [2] or [3]. It is possible to produce a top coat composition solution by dissolving this top coat composition in an organic solvent. These top coat composition and top coat composition solution can be used in immersion lithography.

A hoisting device rope has a width larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material, said composite material comprising non-metallic reinforcing fibers, which include carbon fiber or glass fiber, in a polymer matrix. An elevator includes a drive sheave, an elevator car and a rope system for moving the elevator car by means of the drive sheave. The rope system includes at least one rope that has a width that is larger than a thickness thereof in a transverse direction of the rope. The rope includes a load-bearing part made of a composite material. The composite material includes reinforcing fibers in a polymer matrix.

The present invention is drawn toward an ink-jet ink, comprising an aqueous liquid vehicle having acid-functionalized polymer colloid particulates and polymer-attached pigment colorants dispersed in the liquid vehicle. The liquid vehicle can include at least one volatile co-solvent, each volatile co-solvent present having a boiling point at or below about 285° C. The total amount of volatile co-solvent present in the ink-jet ink can be from 5 wt % to 50 wt %. These ink-jet inks can be printed on traditional as well as non-porous substrates. Optionally, heat can be applied to an image printed with the ink-jet ink to drive off at least a portion of the volatile co-solvent(s).

A monomer compound that contains at least one polymerizable functional group per molecule, and at least one bicycloheptyl-, bicycloheptenyl-, or branched (C₅-C₄₂)alkyl-polyether radical per molecule, wherein the bicycloheptyl- or bicycloheptenyl- polyether radical may optionally be substituted on one or more of the ring carbon atoms by one or two (C₁-C₆)alkyl groups per ring carbon atom is useful in making polymers, particularly pH responsive polymers.

A water based inkjet ink set with excellent image stability, durability and quality, comprising at least one cyan ink, at least one magenta ink, at least one yellow ink, at least one black ink, and at least one colorless protective ink, wherein:

• • (a) the cyan, magenta, yellow, and black inks each comprise a pigment colorant;
  • (b) the cyan, magenta, yellow, black, and colorless protective inks each comprise a polymeric binder additive; and
  • (c) the surface tensions of the inks have the following relationships:
    • (i) the dynamic surface tension at 10 milliseconds surface age for all inks of the ink set is greater than or equal to 35 mN/m,
    • (ii) the static surface tensions of the yellow ink and of the colorless protective ink are at least 2.0 mN/m lower than the static surface tensions of the cyan, magenta and black inks of the ink set and
    • (iii) the static surface tension of the colorless protective ink is at least 1.0 mN/m lower than the static surface tension of the yellow ink.

The invention is directed to a crumbly, water-absorbing, soil-like hydrogel. The hydrogel comprises finely comminuted mineral substances, such as igneous rock; water-soluble alkali-silicate; solid and liquid nutrient additives; and ballast, bound in a cross-linked polymer. The hydrogel is structured like a sponge and absorbs water and liquids when in contact with water or aqueous liquids. The mineral substances present in the hydrogel may be present in an amount of at least 30% by weight of the dried hydrogel. Also, the invention encompasses methods of producing acidic and neutral to weakly alkaline hydrogels.

Coating compositions for producing hydrophobic or super-hydrophobic surfaces and olephobic or super-olephobic surfaces, and to processes for producing such surfaces. In particular, the present invention relates to hydrophobic or olephobic powder coatings and their use for transforming surfaces of articles into hard-to-wet and self-cleaning surfaces.

The invention discloses a two-component waterborne polyurethane colored paint and the preparation method. The components of the paint are 5 to 15 water, 0.2 to 0.5 dispersant, 0.1 to 0.3 antifoamer, 0.1 to 0.3 wetting agent, 3 to 25 paints, 0 to 50 fillers, 10 to 80 film forming resins, 0 to 5 film forming additives, 0.1 to 0.3 disinfectant, 0.1 to 0.3 antiflash rust agent, 0.5 to 2 thickeners, 1 to 20 hydrophilically-modified polyisocyanate. The preparation method is that water, dispersant, antifoamer, wetting agent, paints and fillers are dispersed evenly by a sand mill, a ball mill or a high-speed stirrer after stirring, and are added with film forming resins, film forming additives, disinfectant, antiflash rust agent and thickeners to gain the product-component A. The hydrophilically-modified polyisocyanate is component B. The component A and component B are mixed uniformly when using. The invention is characterized in that the invention does not adopt organic solvents, does not contain toxic paints and has no harm on the human body and environment, and the properties can reach the solvent two-component polyurethane paint, which can be produced to the primer, intermediate coat and finishing coat, and can be applied in the surface of the wooden ware, cement and metals.

A coating containing pigment particles and a polymer matrix is provided. The coating contains pigment particles that have a scattering coefficient with a linear or quasi-linear relationship to the pigment volume concentration of those pigment particles. The coating has improved hiding and is useful as a protective coating or an aesthetic coating on an underlying substrate. Also provided are compositions useful for preparing the coating, including covalently bonded composite particles and aqueous dispersions containing composite particles. The composite particles each contain a pigment particle with a plurality of polymer particles attached by adsorption on the outer surface of the pigment particle or by covalent bonding to the pigment particle through a coupling agent. Methods to prepare the composite particles and coating compositions containing the composite particles are also provided.

A method of selecting components for use in water-absorbing pressure-sensitive adhesive compositions is provided. The method involves selecting a film-forming polymer, a ladder-like non-covalent crosslinker that is capable of forming a ladder-like interpolymer complex with the film-forming polymer selected, and selecting a carcass-like non-covalent crosslinker that is capable of forming a carcass-like complex with at least one of the film-forming polymer selected or the ladder-like non-covalent crosslinker selected. The adhesive hydrogels provide high adhesion in a swollen state and bridge the gap between conventional pressure sensitive adhesives and bioadhesives. Methods for preparing and using the resulting compositions are also disclosed.

Nitrile rubber compositions, articles of manufacture made therefrom, and methods of making them, are disclosed. The nitrile rubber compositions of the invention are substantially free of zinc oxide, and have good strength and chemical resistance while being softer than many conventional nitrile rubbers. The invention provides articles of manufacture, including gloves, which are soft, yet strong, and can be economically manufactured.

The invention relates to absorptive, crosslinked polymers which are based on partly neutralized, monoethylenically unsaturated monomers carrying acid groups wherein the absorptive crosslinked polymer may be coated with a thermoplastic polymer, and have improved properties, in particular in respect of their capacity for transportation of liquids in the swollen state, and which has a high gel bed permeability and high centrifuge retention capacity.

A composition for enhancing fluid viscosity including a mixture of at least one cationic or cationizable polymer and at least one anionic or anionizable (hydrolysable) polymer. The composition has a zeta potential at 25° C. in the range of 0.5 to 100 mV or −0.5 to −100 mV, typically 1 to 60 mV or −1 to −60 mV, or is a precursor convertible at a temperature of 100 to 250° C. to the composition having a zeta potential at 25° C. of 0.5 to 100 mV or −0.5 to −100 mV, typically 1 to 60 mV or −1 to −60 mV. Typically the compositions exhibit salt tolerance and interaction of both polymers at very high temperatures (>300° F.) such that the system exhibits an increase of viscosity at extreme temperatures. The compositions are useful for hydraulic fracturing, enhanced oil recovery, subterranean acidization, personal care as well as home and industrial cleaners.

An aqueous ink composition comprising: a pigment, having a particle diameter as determined by the light scattering method of no less than 20 nm and no more than 200 nm; and a water dispersible polymer, having a styrene-equivalent number average molecular weight of as determined by gel permeation chromatography no less than 5000 and no more than 200000, having a surface tension of no less than 20 mN/m and no more than 40 mN/m, and wherein the abovementioned pigment is a polymer-coated pigment that is coated with the abovementioned water dispersible polymer, is provided. The water-dispersible polymer may be a copolymer of monomers, mainly comprising acrylic acid and/or methacrylic acid and an acrylate and/or methacrylate. With this ink composition, the printing quality can be improved.

A method of preparing fiber reinforced acrylic thickened compositions which can be molded under low pressures and temperatures to provide thermoset articles, wherein liquid reactive components are slowly absorbed in high molecular weight solid acrylic resin in the form of large particles. The acrylic resin functions as a thickener which delays the viscosity build allowing fiber reinforcement to be incorporated before molding. The molding composition is well suited for use in dentistry and other fields where small amounts or molding composition are used occasionally.

This invention relates to a aquosity industry anti-rust paint and its preparation method. According to weight it includes 8 to 11% aquosity acroleic acid modified epoxy, 33 to 40% acroleic acid latices, 0.1 to 0.3% defoamer, 0.05 to 0.15% wetting agent, 0.3 to 0.5% dispersant, 0.3 to 0.5% rust-resistant agent, 7.5 to 9% iron oxide red, 6 to 8% French chalk, 5 to 10% modified zinc phosphate, 2.5 to 10% trimerization aluminum phosphate, 3 to 3.5% precipitated baryte , 0.5 to 1% zinc oxide, 3 to 5% mica ferric oxide, alcohol ester twelve 1 to 2%, triethanolamine 1 to 2%, thickening agent 0.3 to 0.6%, preservative 0.05 to 0.1%, 5 to 20% de-ionized water, through pretreatment, color paste preparation and blending and adjusting to gain product.

Compositions comprising graphene sheets, at least one olefin polymer, and at least one crosslinking agent and crosslinked compositions comprising graphene sheets and at least one olefin polymer. A method of making a crosslinked composition comprising graphene sheets and at least one olefin polymer, coatings comprising the compositions, and a method of coating a surface with the compositions are disclosed.

A process for the preparation of a latex polymer consistent with E/A (emulsion/aggregation/coalescence) toner manufacture. The process utilizes a standard (universal) latex composition and involves chain-transfer agent partitioning, emulsion polymerization that provides a latex polymer with a wide range of molecular properties. In particular, the process customizes a wide range Mw (weight average molecular weight) latex, without substantially varying the Mn (number average molecular weight) and hence, without substantially varying Tg (glass transition temperature) such that good toner performance is maintained. In a preferred process, a latex polymer is prepared by mixing a seed particle latex, generated by aqueous emulsion polymerization of a first portion of a monomer emulsion, with a second portion of the monomer emulsion and at least one chain-transfer agent. The mixing is done in the presence of a free-radical initiator and heated, and wherein the monomer emulsion comprises a mixture of polymerization reagents of at least one monomer, at least one chain-transfer agent, at least one surfactant, and water. This process may be applied to core-shell polymerization as well. These latex polymers are ideally suited in the manufacture of toner and developer for electrophotographic imaging and printing.