202 results about "Dyne" patented technology

The present invention provides a water based, low VOC super hydrophobic coating composition that can be used to make wet and dry dirt repellent surfaces to keep the surfaces clean for a reasonable period of time. The coating utilizes hydrophobic nanoparticles dispersed in water. This treatment produces a virtually transparent coating releasing very little or no VOC compounds whereas previous coatings of comparable hydrophobicity release up to 99 percent VOC compounds. The coating can be applied by a simple, single application method and the super hydrophobic property can be achieved by drying at room temperature for 5 to 10 minutes. A preferred coating can be easily removed and renewed when desired. The aqueous hydrophobic self cleaning coating composition that can be applied by conventional methods such as by spraying the composition onto a surface creating a wet and dry dirt repellent coating on the surface. The hydrophobic self cleaning coatings are used on exterior automotive and boat surfaces, and in many other applications, to produce a self cleaning surface, reduce adherence of dirt and contaminants to a treated surface, and reduce drag in some applications providing an energy savings. The coating solves the problem of poor resistance to UV light, opaque appearance, and/or abrasion found in previous coatings of similar nature. A preferred coating has good resistance to UV light and some resistance to abrasion. Clear, nearly transparent and translucent coatings are produced as compared to conventional coatings of comparable hydrophobicity which are typically white or opaque. The coating can be applied by a single and easy spraying method and the super hydrophobic property can be achieved by drying the film by evaporation of the solvent wetting solution and water based carrier at ambient temperature for 5 to 10 minutes. Embodiments of the hydrophobic self-cleaning coating composition can be produced resulting in a clear coating or in some cases a translucent dirt repellant film or coating on painted material, plastic, metal, glass, ceramic, fiberglass or a polymer substrate. The coating typically utilizes hydrophobic nanoparticles of fumed silica and/or titania wetted by a hydrophilic solvent such as acetone for no VOC applications, or with mineral spirits, alcohol or a light distillate if VOC are not a consideration, together with a selected surfactant typically having an HLB value in a range of from 9 to 13.

At least one preferred coating composition comprising an effective amount of a treated fumed silica wetted with a solvent and dispersed in water, upon drying, resulted in a coated surface providing a contact angle of at least 165 degrees and a surface energy below 12 dynes/centimeter as compared to water having a contact angle of from 65 to 80 degrees on a noncoated surface. The composition imparts a degree of hydrophobicity to a surface so that the surface will have a tilt angle of sliding of less than 2 degrees as compared to water on a noncoated surface having a tilt angle of sliding of 90 degrees or higher. The coating composition is removed by washing with a detergent or applying pressure to the coating wiping same from the treated surface. Exposure to water in the form of rain or snow does not remove the coating composition.

The invention discloses a high-polarity polypropylene material and the application thereof as inner and outer decorative parts of an automobile. The material is prepared from the following components in percentage by weight: 50-89 polypropylene, 5-25 flexibilizer, 0-30 mineral filler, 5-15 polar additives, 0.2-3 age resister and 0-0.5 colorant, and the components are premixed and then are extruded out by a double-screw extruder to prepare particles, thereby preparing the high-polarity modified polypropylene material. The surface tension of the material is as high as 37 dyne/cm<2>, dope-binding strength is high, an automobile bumper formed by the material can be coated without being pretreated, and when being used for preparing the inner decorative part for the automobile, the material has good property of binding other materials.

A composition for an organic EL element which can form a high precision pattern in a simple manner and in a short time and a method of manufacturing the organic EL element are disclosed. By using the composition, optimum film design and luminescence characteristic can be easily obtained, and an adjustment of a luminescence efficiency can also be easily performed. The composition for an organic EL element comprises a precursor of a conjugated organic polymer compound for forming at least one luminescent layer (106), (107), (108) having a certain color and at least one kind of fluorescent dye for changing the luminescence characteristic of the luminescent layer. The luminescent layer is made from a pattern formed by an ink-jet method. As for the precursor, a precursor of PPV, PPV derivative or the like is preferably used. Further, it is preferable that the composition for the organic EL element satisfies at least one of the conditions including a contact angle of 30 to 170 degrees with respect to a nozzle surface of a nozzle provided in a head of an ink-jet device used for the ink-jet method for discharging the composition, a viscosity of 1 to 20 cp and a surface tension of 20 to 70 dyne/cm.

An electroplating solution contains a wetting agent in addition to a suppressor and an accelerator. In some embodiments, the solution has a cloud point temperature greater than 35° C. to avoid precipitation of wetting agent or other solute out of the plating solution. In some embodiments, the wetting agent decreases the air-liquid surface tension of the electroplating solution to 60 dyne/cm² or less to increase the wetting ability of the solution with a substrate surface. In some embodiments of a method for plating metal onto substrate surface, the electroplating solution has a measured contact angle with the substrate surface less than 60 degrees.

The invention belongs to the technical field of lithium ion batteries, and particularly relates to a composite porous diaphragm which comprises an organic layer and an inorganic coating arranged on the surface of the organic layer, wherein the organic layer is a polyolefin porous diaphragm layer; the inorganic coating comprises the following components in percentage by weight: 0.2-2% of water-soluble high molecular thickener, 0.2-5% of waterborne dispersing agent, 1-30% of waterborne latex and 63-98.6% of inorganic particles; and the waterborne latex is a high-molecular polymer of which the solubility parameter is less than or equal to 18(J/cm<3>)1/2 and the surface tension is less than or equal to 44 dynes/cm. Compared with the prior art, the composite porous diaphragm provided by the invention has good heat-resistant shrinkage performance; and meanwhile, with better puncture strength, the inorganic coating of the diaphragm effectively reduces the short-circuit risk in a battery, and improves the safety performance of the battery. Moreover, the invention also discloses a preparation method of the diaphragm.

The present invention describes vacuum skin packages comprising a thermoplastic film and a polyester substrate wherein the thermoplastic film includes at least a first polymer layer having a first surface and an opposing second surface and comprises an ethylene/unsaturated ester copolymer, wherein the first surface has been surface treated in a manner to exhibit a surface tension of between 36-60 dynes/cm. The thermoplastic film is adapted to form a peelable seal between the first surface of the first polymer layer of the thermoplastic film and the polyester substrate by a pressure of less than 1×10⁵ Pa applied therebetween, wherein the peelable seal has a seal strength of between 0.5-6 lb./in. (0.09-1.08 kg/cm).

The present invention is drawn to ink compositions and methods for ink-jet recording. The ink compositions can include a milled pigment, a surfactant, a non-aqueous co-solvent system, and at least 2 wt % resin solubilized in the ink composition. The non-aqueous solvent system comprises a main co-solvent system, where each co-solvent of this system has a surface tension less than 32 dynes/cm at 25° C. The co-solvent system also includes gamma butyrolactone and a second co-solvent system. The second co-solvent system includes one or more co-solvent(s), each having a surface tension of greater than 32 dynes/cm at 25° C. The second co-solvent system or other components can optionally act to increase the overall surface tension of the ink composition as a whole.

There is disclosed a method of transporting a produced fluid through a pipe while limiting deposits at a desired pipe inner-wall location comprising providing a pipe having an inner surface roughness Ra less than 2.5 micrometers at said desired pipe inner-wall location, forcing the produced fluid through the pipe, wherein the produced fluid has a wall shear stress of at least 1 dyne per centimeter squared at said desired pipe inner-wall location.

A patterned element for use in an embossing and adhesive application process. The patterened element comprises a material having an pattern disposed thereon, wherein the material comprises a polymer and has a Shore A hardness of greater than about 70, and has a critical surface energy of less than about 30 dynes/cm.

A tray for handling and retaining a plurality of small components comprising a rigid body portion with a plurality of pockets formed therein. Each of the pockets has an elastomeric contact surface for contacting and retaining a component. The contact surface may be formed from a thermoplastic material having a surface energy between 20 dyne/cm and 100 dyne/cm, and a surface electrical resistivity of between about 1×10⁴ ohms/square and 1×10¹² ohms/square. The material for the contact portion may be urethane, polybutylene terephthalate, polyolefin, polyethylene terephthalate, styrenic block co-polymer, styrene-butadiene rubber, polyether block polyamide, or polypropylene/crosslinked EDPM rubber. The body portion may be formed from acrylonitrile-butadiene-styrene, polycarbonate, urethane, polyphenylene sulfide, polystyrene, polymethyl methacrylate, polyetherketone, polyetheretherketone, polyetherketoneketone, polyether imide, polysulfone, styrene acrylonitrile, polyethylene, polypropylene, fluoropolymer, polyolefin, or nylon. The body portion may have a peripheral border region and a downwardly projecting skirt portion to facilitate stacking of multiple trays.

The present invention involves an ink for transferring a printed image from a membrane to a substrate. The ink comprises a hydrocarbon solvent, a synthetic resin, and a thixotrope for forming a thixotropic network in the ink. The hydrocarbon solvent has a predetermined evaporation rate and the thixotropic network of the ink has a thixotropic network magnitude of between about 3×10⁴ and 6×10⁵ dynes/cm²-sec⁻¹ and a thixotropic network strength of at least about 35.0 gm-cm.

The present invention relates to a dust suppressant composition comprising a aqueous solution of polyvinyl alcohol, acrylic-based latex, glycerin, silicone based surfactant and a polysiloxane-based wetting agent. Preferably, the composition comprises from about 10 to about 46% of polyvinyl alcohol, from about 20 to about 60% of an acrylic-based latex, from about 0.6 to about 7.0% of glycerin, from about 0.1 to about 1.5% of silicone-based surfactant and from about 0.001 to about 0.5% of polysiloxane-based wetting agent. The composition provides a polymer film over a dusting material thus forming a homogeneous and resistant layer. The instant composition, which is applied over the dusting material (preferably sprayed over the material) and dried at room temperature, presents a low surface tension resulting in better wetting of the particulates and agglomeration of the material. The latter two properties ensure that there is less breakage of the polymer film during continuous use or application (e.g. during transportation of the dusting materials). Said surface tension is between about 20 and about 27 dynes/cm, and preferably of about 25 dynes/cm.

A molded plastic container having one or more of its surfaces modified by contacting those surfaces with a reactive gas atmosphere containing fluorine, chlorine, oxygen, ozone, sulfur trioxide, peroxide, oxidative acids, or mixtures thereof to increase the surface energy of those one or more surfaces to at least 40 dynes/cm to enhance the adhesion of coatings to those surfaces, a fire-resistant intumescent or ceramic microsphere coating adhered to said modified surfaces to improve the longevity and integrity of the container when exposed to the heat of a fire, and optionally, a barrier coating adhered under said modified surfaces to reduce permeation of oxygen, carbon dioxide, and organic fluids through the container walls; and a method for producing such a molded plastic container comprising modifying at least one surface of the container with a halogenated gas atmosphere to increase the surface energy of that surface, optionally coating said modified surface with a permeation barrier layer, and subsequently coating said modified surface with an intumescent or ceramic microsphere fire protective material.

The present invention relates compositions and methods for enhanced oil recovery. The method is directed to employing a water-soluble The present invention relates compositions and methods for enhanced oil recovery (EOR). The method is directed to employing a water-soluble functional polymeric surfactant (FPS), with a medium IFT value, preferably ranged from about 0.1 to about 15 dyne/cm between water phase containing polymeric surfactant and hydrocarbon phase, for recovery of hydrocarbons from subterranean formations. The FPS solution demonstrates a strong interaction with oil and the great potential to increase both volumetric sweep efficiency and microscopic displacement efficiency in EOR.

The present invention is directed to novel block copolymers and to novel polymeric electrolyte compositions, such as solid polymer electrolytes that comprises a block copolymer including a first block having a glass transition temperature greater than about 60° C. or a melting temperature greater than about 60° C., and a second block including a polyalkoxide. The polymer electrolyte composition preferably has a shear modulus, G′, measured at 1 rad/sec and about 30° C. and a conductivity, σ, measured at about 30° C., such that i) G′—σ is greater than about 200 (S/cm)(dynes/cm²); and ii) G′ is from about 10⁴ to about 10¹⁰ dynes/cm2.

The present invention discloses a microstructure transfer medium and application thereof to produce various microstructures on a film, glass substrate, plastic substrate, etc. for utilization in a variety of optical films of a backlight module, light guide plates, color enhancement film for liquid crystal displays, various patterned nanoimprint for semiconductor or flat panel display processes, and Fresnel lens. Furthermore, the microstructure transfer medium according to the present invention can be applied in producing microstructures on a non-planar surface. The microstructure transfer medium according to the present invention comprises a substrate and a release layer formed on the substrate wherein the release layer has microstructures thereon. Preferably, the surface energy of the release layer is lower than 30 dyne/cm.

A cleaning solution for preventing the collapse of photoresist patterns and a method of cleaning a semiconductor device using the cleaning solution; the cleaning solution includes a solvent and a surfactant and has a dynamic surface tension of about 50 dyne/cm or less at about 6 bubbles/seconds when measured by a maximum bubble pressure method. The collapse of the photoresist pattern can be prevented using the cleaning solution when forming minute photoresist patterns having about 100 nm or less pattern width. The cleaning solution containing a surfactant in a high concentration also can be prepared to reduce distribution expenses.

A method for the formation of a luminescent layer having a uniform thickness in a desired pattern and an organic electroluminescent device that can realize high-quality display and is highly reliable. The luminescent layer is formed by providing a blanket having a resin film having a surface tension of not less than 35 dynes/cm as a surface layer and an ink for a luminescent layer, having a viscosity (ink temperature 23° C.) in the range of 5 to 200 cP as measured at a shear rate of 100/sec, and containing a solvent having a surface tension of not more than 40 dynes/cm and a boiling temperature in the range of 150 to 250° C., filling the ink into cells in a gravure form, allowing the blanket to receive the ink from the cells, and transferring the ink on the blanket onto a luminescent layer forming face.

A surface emitting semiconductor laser includes a substrate, a first mirror that is formed on the substrate and includes semiconductor layers of a first conduction type, a second mirror that includes semiconductor layers of a second conduction type, an active region disposed between the first and second mirrors, a current confinement layer that is disposed between the first and second mirrors and includes a selectively oxidized region, and an inorganic insulation film. A mesa structure includes at least the second mirror and the current confinement layer. The inorganic insulation film covers at least a side surface of the mesa structure and having an internal stress equal to or less than 1.5×10⁹ dyne/cm².

The subject invention concerns the use of staple length nano polytetrafluoroethylene (PTFE) crystallites obtained by liquid shearing PTFE dispersion particles that are wet by a liquid with a surface tension below 30 dynes/cm this liquid will spread on PTFE resin surfaces and has a contact angle of zero (0) degrees with a PTFE surface. Staple length PTFE resin micro-fibers will form rapidly under high liquid shearing force at 125° C. when diluted 1 part PTFE resin to 20 parts liquid. The subject invention also includes the application of products that are multi-directional planar oriented and isotropic as sheet, membranes and structures useful for high performance filtering, fuel and solar cells and related energy applications. It also concerns products made from formulations as coatings and product for forming, shaping and molding sheet and structures of the subject invention and methods of adhering, bond and laminating components of these structures without adhesives.

A field effect transistor according to a preferable mode of the present invention employs an organic film, which is provided on an insulating layer having a plurality of insulating regions with different surface energy densities, and is aligned. Each of the plurality of insulating regions with different surface energy densities has a difference in surface energy density of preferably 10 dyne/cm or more, and a difference in height of preferably 0.5 nm or more and 100 nm or less. A compound constituting the organic film may have electrical conductivity, may be a polymer compound, and may exhibit liquid crystallinity. The preferable mode of the present invention provides a highly smooth organic film and a field effect transistor using the organic film.