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175results about How to "Soft surface" patented technology

Methods and systems for improving open time and drying time of latex binders and aqueous coatings

ActiveUS20110144248A1Improving open time characteristicExtended opening timeOrganic chemistryOther rubber coatingsTime profileDrying time
Disclosed are low Tg latex polymers and low VOC aqueous coating compositions having an improved open time profile, as well as drying time, stain resistance, wet edge time, low temperature film formation, block resistance, adhesion, water sensitivity and low-VOC content. The latex polymers and aqueous coating compositions include at least one latex polymer derived from at least one monomer copolymerized or alkoxylated compounds or blended with an alkoxylated compound, for example an alkoxylated tristyrylphenol or an alkoxylated tributylphenol. Also provided is an aqueous coating or adhesive composition including at least one latex polymer, water and one or a blend of two or more open time additives or drying time additives. The blend can comprise nonionic and anionic open time additives. Typically, the open time and/or drying time additive is present in an amount greater than about 1.3% by weight of the polymer or composition, typically in an amount greater than about 2% by weight of the polymer or composition, in an amount greater than about 4% by weight of the polymer or composition, in an amount greater than about 7.5% by weight of the polymer or composition, in an amount greater than about 10% by weight of the polymer or composition or in an amount greater than about 20% by weight of the polymer or composition.
Owner:RHODIA OPERATIONS SAS

Hole repairing construction machine for polyethylene anti corrosive coating of metallic tube and construction method thereof

The invention provides a hole repairing construction machine for a polyethylene anti corrosive coating of a metallic tube and a construction method thereof. A main body of the hole repairing construction machine consists of a tubular pressurizing sleeve and a tubular rubber air bag adhered to the inner wall of the main body; and the pressurizing sleeve and the rubber air bag are kept coaxial with the tube by four support arms arranged on each of the two sides of the pressurizing sleeve along the axial direction of the tube and rubber rolling wheels arranged at the tail ends of the pressurizing sleeve, and a polyethylene hole repairing band is artificially inserted in the pressurizing sleeve from the side of longer support arms and closely attached to the inner wall of the rubber air bag by the recurrent force of the polyethylene hole repairing band. The polyethylene hole repairing band may be of an electric heating fusion shrinking type or external heating shrinking type, the rubber air bag is pressurized by air compression equipment and a thermal conduction oil pump, and after the polyethylene hole repairing band is electrified for heating fusion or fused by the heat transfer of the thermal conduction oil, the rubber air bag is gradually pressurized to 0.01 to 1MPa until the adhesion is completed. In the hole repairing process of the invention, main operational steps are automatically completed by the equipment, and the construction quality is good; and the polyethylene hole repairing band withstands a huge pressure in a softening process, so that the bonding strength is greatly improved, and the cost is also low.
Owner:KINGFA SCI & TECH CO LTD +2

Method for preparing antibacterial super-hydrophobic fabric having stable properties by using silver-deposited nanoparticles

A method for preparing antibacterial super-hydrophobic fabric having stable properties by using silver-deposited nanoparticles comprises the steps that a fabric is soaked by adopting an EDTA solutionand then is dried; the dried fabric is impregnated in a silver-ammonia solution, then a glucose solution is added, and soaking and drying are performed; the fabric is put in an ethanol solution of aluminic acid ester under the stirring condition, and soaking and drying are performed to obtain the antibacterial super-hydrophobic fabric. According to the method, EDTA is adopted as a complexing agent, hydroxide radicals on the surface of the fabric can be bound with the EDTA, and silver particles can be complexed with the EDTA, so that the EDTA makes a substrate and the silver particles bound together through chemical bonds, the surface roughness is not likely to change, and the fabric has very good stability. The fabric and the silver particles are tightly grafted together, so that the stability of the fabric is improved. The fabric reacts with the cheap low-surface-energy substance aluminic acid ester easy to obtain, high-price organosilane is replaced, and the cost is reduced. In addition, the fabric has better antibacterial properties.
Owner:XIAN UNIV OF SCI & TECH
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