124results about How to "Increase surface lubricity" patented technology

A fluid dispense tip includes a bevel at an opening to reduce the amount of surface tension, or “land”, at the opening. The bevel is formed by grinding in a longitudinal direction such that any tooling scars resulting from the grinding operation are likewise longitudinally oriented, further reducing the amount of surface tension in the tip, thereby leading to heightened dispensing accuracy. The tip may be machined from stock as a unitary piece, to increase its lifetime, and may be formed with a bore of a relatively large diameter that is tapered down to a smaller diameter near the tip opening, to allow for delivery of fluid through the tip body at a decreased pressure. The tip may optionally be formed with a Luer™-style fitting on the body, such that the tip is compatible with pumps that utilize such a fitting.

The invention discloses a polyphenyl ether resin material used for processing a charger case, which consists of polyphenyl ether resin, polystyrene resin, an elastic body, fire retardants, polyolefin, silicone masterbatch, main antioxidants and auxiliary antioxidants. Through adding proper auxiliary agents into a polyphenyl ether resin composition, the invention improves the surface lubricating effect of manufactured elements, reduces the pressure required during welding, and solves the problems of impression, scratches and the like occurring during the ultrasonic welding of products. The products are mainly applied to the fields requiring the ultrasonic welding, such as charger cases, wiring cases and the like.

An object of the present invention is to provide a fluorooxyalkylene group-containing polymer composition, which yields a coating having excellent adhesior to a substrate, good water- and oil-repellency, a low dynamic friction coefficient, good releasing property, good abrasion resistance and good stain resistance, and to provide a surface treatment agent comprising the same. The present inventors have found that a composition comprising a fluorooxyalkylene group-containing polymer having a fluorinated group and a hydrolyzable group at each terminal and a fluorooxyalkylene group-containing polymer having hydrolyzable groups at both terminals can form a coating which has excellent water- and oil-repellency, a low dynamic friction coefficient, good releasing property, good abrasion resistance, and good stain resistance.

A fluid dispense tip includes a bevel at an opening to reduce the amount of surface tension, or “land”, at the opening. The bevel is formed by grinding in a longitudinal direction such that any tooling scars resulting from the grinding operation are likewise longitudinally oriented, further reducing the amount of surface tension in the tip, thereby leading to heightened dispensing accuracy. The tip may be machined from stock as a unitary piece, to increase its lifetime, and may be formed with a bore of a relatively large diameter that is tapered down to a smaller diameter near the tip opening, to allow for delivery of fluid through the tip body at a decreased pressure. A cleaning tool may be provided for removing residual material from the inner surfaces of the tip. A removable liner sleeve may be provided within the bore to reduce the effective inner diameter of the dispense tip.

A method for the preparation of a polyamide-based composition provides for the substantially uniform dispersion of particulate silica and, optionally, mineral oil and any other lubricant additive, within a polyamide matrix. The method includes mixing particulate silica, and optionally, mineral oil and other lubricant additives, to one or more polyamide-producing monomers, and water, to form an emulsion or suspension wherein the particulate silica (and mineral oil and other lubricant additives, when added) are substantially uniformly dispersed therein, and then in situ polymerizing the monomer(s) to provide a polyamide matrix wherein the particulate silica, and optional mineral oil and other optional lubricant additives, remain substantially uniformly dispersed in the resulting polyamide matrix to form the polyamide-based composition. A polyamide-based composition comprising a polyamide matrix having silica and optionally, mineral oil and other lubricant additives, substantially uniformly dispersed within the polyamide matrix is also provided.

A fluid dispense tip includes a bevel at an opening to reduce the amount of surface tension, or “land”, at the opening. The bevel is formed by grinding in a longitudinal direction such that any tooling scars resulting from the grinding operation are likewise longitudinally oriented, further reducing the amount of surface tension in the tip, thereby leading to heightened dispensing accuracy. The tip may be machined from stock as a unitary piece, to increase its lifetime, and may be formed with a bore of a relatively large diameter that is tapered down to a smaller diameter near the tip opening, to allow for delivery of fluid through the tip body at a decreased pressure. A cleaning tool may be provided for removing residual material from the inner surfaces of the tip. A removable liner sleeve may be provided within the bore to reduce the effective inner diameter of the dispense tip.

[Object] To provide a biodegradable polyester resin composition that can achieve excellent antistatic properties and surface lubricity while maintaining the molecular weight without deteriorating the appearance of the resin, even if a kneading method is employed. [Solving Means] A biodegradable polyester resin composition containing 0.05 to 10.0% by weight of a borate ester surfactant (a reactant of boric acid and a compound given by esterifying a polyol with a higher fatty acid, a salt of the reactant, a reactant obtained by reacting a higher fatty acid to a compound given by esterifying a polyol with boric acid, or the like) having one or more hydrophobic groups having 8 to 24 carbon atoms.

The present disclosure provides, among other things, prosthetic joint components having textured surface(s) for improving lubrication and increasing the useful life of the prosthetic joint components. The textured surface includes solid features configured to stably contain a biological fluid or a synthetic biological fluid therebetween or therewithin for a non-zero residence time.

The invention discloses a method for preparing a lubricating coating with strong stability on the surface of a medical polyurethane material, comprising the following steps of: step 1, pretreating the medical polyurethane material so as to obtain positions with proper surface roughness and reaction activity; step 2, putting the polyurethane polymer material pretreated in the step 1 into a gas phase system of reaction solution or solute for grafting reaction; and step 3, cleaning and drying the reaction products from the step 2. The method can be widely used for preparing medical polymer materials and high-lubricity coating materials on the surface of medical instruments.

Uneven charging is improved, and production of a banding image attributed to a slip between the charging member and the electrophotographic photosensitive member is suppressed. An electrophotographic process cartridge including a charging member and an electrophotographic photosensitive member which is electrically charged upon being brought into contact with the charging member, wherein the charging member includes a electro-conductive substrate and a surface layer formed on the electro-conductive substrate; the surface layer contains at least a binder resin, an electron conductive agent, and a resin particle having a plurality of pores inside thereof; the surface of the surface layer has a protrusion derived from the resin particle; the electrophotographic photosensitive member includes a support and a photosensitive layer formed on the support; and the surface layer of the electrophotographic photosensitive member contains a specific component.

Provided is a medical device wherein a surface lubricating layer and one of various polymer bases are fixed with each other firmly by a simpler technique. The medical device permanently exhibits excellent surface lubricity when in use. Specifically disclosed is a medical device (10) which has a lubricating surface when wet. The medical device (10) is characterized by comprising a base layer (1) at least the surface of which is composed of a polymer material, a compound (thiol compound) (2) which is supported by at least a part of the base layer (1) and has a plurality of thiol groups in each molecule, and a surface lubricating layer (3) which covers the thiol compound (2) and is composed of a hydrophilic polymer that has a reactive functional group. The medical device (10) is also characterized in that the thiol compound (2) is supported by (fixed to) the base layer (1) by irradiation of ionized gas plasma, and that the surface lubricating layer (3) is bonded to the base layer (1) by reacting the thiol compound (2) with the hydrophilic polymer that has a reactive functional group.

The invention discloses a high-temperature anti-sticking material coating and manufacturing and application methods thereof. The high-temperature anti-sticking material coating comprises self-lubricating material particles, a cladding material and a high-temperature-resistant adhesive, wherein the particle size of the self-lubricating material particles is micron-sized; the self-lubricating material particles are coated by the cladding materials; the melting point of the high-temperature-resistant adhesive is higher than that of the cladding material; the coated self-lubricating material particles are adhered together to form the high-temperature anti-sticking material coating; and the coated self-lubricating material particles are adhered together by aluminum dihydrogen phosphate serving as the adhesive to form the high-temperature anti-sticking material coating. The high-temperature anti-sticking material coating is simple in manufacturing process and flexible in application method, adapts to the high temperature of 1,600 DEG C, effectively prevents liquid metal in the metallurgy environment from being adhered to equipment because the liquid metal is changed into solid when encountering cold, and is widely applied, safe and reliable.

The invention discloses a lubricating liquid for lubricating the surface of an aluminum alloy material and a preparation method thereof, and relates to the technical field of lubricating liquids. The lubricating liquid is composed of the following components: lard, paraffin oil, steam cylinder oil, tetradecyl alcohol, industrial glycerin, and carbon tetrachloride. The lubricating liquid can eliminate the surface defects of an aluminum alloy material, oil stains and oxide scales, so the lubricating effect is better, the fluidity and lubricity of aluminum alloy products are better during the extrusion process, and the part quality is improved.

A magnetic sheet, which contains: a magnetic layer including a magnetic powder and a resin composition containing the magnetic powder therein; and a convex-concave forming layer, in which the convex-concave forming layer has Bekk smoothness of 70 sec / mL or less. A method for producing a magnetic sheet, which contains: adding a magnetic powder to a resin composition to prepare a magnetic composition, and giving the magnetic composition a shape to form a magnetic layer; and placing and stacking a convex-concave forming layer and a pattern transferring material on a surface of the magnetic layer in this order, and hot pressing the stacked layers so as to bond the convex-concave forming layer with the magnetic layer to form a laminate, as well as to transfer a surface configuration of the pattern transferring material to a surface of the laminate of the convex-concave forming layer and the magnetic layer.

A medical device having an increased surface hydrophilicity comprises a coating polymer comprising units of a polymerizable hydrophilic compound, such as a polymerizable polyhydric alcohol. The coating polymer can be applied to a medical device comprising a hydrogel material. The medical device can have a reduced dehydration rate compared to a device that is devoid of such a coating polymer and / or provide increased comfort to a user.

Provided are a contact lens care preparation capable of imparting durable surface lubricity and amebic adhesion inhibitory effect to a contact lens surface through a simple treatment, and a contact lens packaging solution utilizing the same. The contact lens care preparation is composed of a solution containing 0.01 to 2 weight / volume % of a polymer having particular monomer units with a phosphorylcholine-like group, particular (meth)acrylamide derivative units, and particular monomer units with a hydrophobic group at a particular ratio, and a weight average molecular weight of 5,000 to 2,000,000, and is useful as a contact lens packaging solution.

The invention provides a slope self-compacting concrete. The slope self-compacting concrete is prepared from the following components in parts by weight: 60 to 70 parts of Portland cement, 60 to 100 parts of coarse aggregate, 48 to 78 parts of fine aggregate, 15 to 30 parts of mineral admixture and 0.6 to 2.1 parts of an additive, wherein the water-binder ratio is 0.26 to 0.35; the coarse aggregate is granite stone; the fine aggregate is river sand; the mineral admixture is a mixture of steel slag, fly ash and silicon powder according to a mass ratio of 1: 1: 0.5; the additive is a water reducing agent; and the steel slag is steel slag micro-powder subjected to surface modification by nano silicon dioxide. The steel slag micro-powder is subjected to surface silicon dioxide modification, the volcanic ash activity of the steel slag micro-powder is improved, the steel slag micro-powder can replace a part of a conventional admixture, meanwhile, the early strength of the doped concrete is improved, the application range of the steel slag concrete is expanded, and the production cost is also reduced.

An imaging member having an enhanced anti-curl back coating is disclosed. The anti-curl back coating comprises a liquid oligomer. Additionally, a slip agent can also be included. The resulting anti-curl back coating contains little to no residual solvent, shows improved resistance to wear and ozonolysis, and increased lubricity to prevent static charge built-up.

The invention discloses preparation and application of a high-wear-resistance modified nylon composition. The high-wear-resistance modified nylon composition comprises the following components in percentage by weight: 30-70 parts of PA66 (Polyamide) resin, 20-50 parts of PPA (Polyphthalamide) resin, 4-8 parts of toughening agent, 4-7 parts of wear-resisting agent and 2-5 parts of other auxiliary agents. The material has wide application in the fields of automobiles, machinery and the like and has an obvious advantage of substituting metal in the aspects of a wear-resistant shaft bushing, a slip sheet and the like. A preparation method for the high-wear-resistance modified nylon composition comprises the following process steps of: uniformly mixing the raw materials according to a proportion; adding into a double-screw extruder; and controlling the temperature at 250-330 DEG C for granulation to obtain the high-wear-resistance modified nylon composition. The high-wear-resistance modified nylon composition with superior comprehensive performance is prepared.

The invention discloses a weather-proof anti-flaming high-performance glass surface protection film which comprises the following raw materials in parts by weight: 26-32 parts of polytetrafluoroethylene, 10-14 parts of polyvinyl alcohol, 2-6 parts of lubricating auxiliaries, 18-24 parts of polyurethane resin, 8-10 parts of a processing agent, 9-13 parts of silicone resin, 10-12 parts of an anti-flaming additive, 6-8 parts of vinyl silicone oil, 1-2 parts of a catalyst, 4-8 parts of a metallic oxide additive, 3-7 parts of a coupling agent and 16-22 parts of water. The protection film disclosed by the invention is higher in adhesive force and has excellent light transmittance performance and impact strength, better anti-scraping property, better fireproof anti-flaming property and excellent weather-proof property; meanwhile, the raw material components are safe and reliable, are harmless to environment and are easily acquired according to the preparation method disclosed by the invention; the cost is lower, the technology is simple, the operation is easy, and the industrial production is easily realized; and the protection film has higher practical values and good application prospects.

A magnetic recording tape configured for increased surface lubricity includes an elongated substrate and a magnetic side disposed on the substrate. The magnetic side includes a magnetic recording layer defining an exposed magnetic recording surface opposite the substrate, and a support layer deposited on the substrate between the substrate and the magnetic recording layer. The support layer includes nano-particles configured to release lubrication to the exposed magnetic recording surface. In this regard, the support layer configures the exposed magnetic recording surface to have a surface lubrication to total lubrication ratio (SL ratio) of greater than about 5%.

A tray, for example, a drying tray, a method for drying, and a structural member engagement system are provided. The drying tray includes at least one perforated panel; and a frame adapted to support the perforated panel. The frame may include a plurality of interconnecting plastic support members adapted to receive the perforated panel. The tray may be used to dry fruits, vegetables, fish, and meat. A method of using the tray and a structural member engagement system are also disclosed The member engagement system includes a first elongated member, a second elongated member, and a plug and pin adapted to engage the first member with the second member.

A medical device having good surface lubricity in the wet condition, high frictional durability and surface lubricity stability includes a body and a smoothing or lublicating coating on a surface of the body. The coating is produced by applying a solution of a mixture of maleic anhydride high polymer and polyurethane having allophanate bond on a surface of the body, insolubilizing the resultant coating by heating, and then hydrophilizing the coating with a hydrophilizing agent such as ammonia, amine or alcohol.

[Solution]A polypropylene resin composition includes 100 parts by weight of basic components including a polypropylene resin (A) including a propylene polymer, the propylene polymer having a MFR of 10 to 300 g / 10 min and containing 98 mol % or more of structural units derived from propylene, an ethylene.α-olefin copolymer (B) having an ethylene content of 65 to 90 mol %, and optionally an inorganic filler (E); 0.2 to 1 part by weight of a fatty acid amide (C); and 0.2 to 1 part by weight of a surfactant (D).[Effect]The polypropylene resin compositions of the invention have excellent shaping properties such as injection molding properties and can give shaped articles which exhibit excellent properties such as rigidity and impact resistance and which are effectively prevented from deteriorations in surface properties due to friction with soft substances such as rubbers (namely, have excellent kicking scuff resistance), thus finding suitable applications in automobile interior and exterior parts.

The invention provides a valve retainer and a preparation process thereof. The preparation process comprises the following steps of: preparing powder, wherein the powder comprises high alloy layer powder and low alloy layer powder; carrying out compression moulding and sintering on the powder to prepare a valve retainer; carrying out cold treatment, heat treatment, cleaning and drying on the prepared valve retainer; carrying out deposition on a base surface of the valve retainer by adoption of a cathode arc deposition technology and magnetron sputtering technology combined manner so as to forma transition layer and a DLC coating; and finally annealing the valve retainer. By adoption of the preparation process, the valve retainer has relatively high heat stability, relatively high corrosion resistance and relatively low friction coefficient, so that the wear resistance, service life and system reliability of the valve retainer are effectively improved.