125results about How to "Reduce permeation" patented technology

There is provided a flexible display having a plurality of innovations configured to allow bending of a portion or portions to reduce apparent border size and/or utilize the side surface of an assembled flexible display.

A method of reinforcing a polymeric material with nanosize materials is provided in which materials such as vapor grown carbon nanofibers, carbon nanotubes, layered silicates, nanosize sphered silica, or graphite nanoparticles are combined with a polymer and a solvent to form a substantially homogeneous mixture, followed by removal of the solvent by evaporation or coagulation. Depending on the nanosize materials used, the resulting polymeric nanocomposite material exhibits high electrical and thermal conductivity, enhanced mechanical strength, abrasion resistance, reduced gas permeation, and/or dimensional stability.

A welding joint 10 for a fuel tank reduces the amount of fuel vapor in the fuel tank that escapes into the atmosphere. The fuel tank welding joint 10 a joint main body 20 and a barrier layer laminated on the surface of the joint main body 20. The joint main body 20 is formed of a first resin material weldable to the wall of the fuel tank FT, and the barrier layer 30 is formed of a second resin material that is adhesively and chemically reactive with the first resin material and that is more fuel-impermeable than the first resin material. An end portion 34 formed so as to be exposed to the outside at the end of a tube portion 24 is formed on the barrier layer 30. When the barrier layer 30 is injection molded on the surface of the joint main body 20, the end portion 34 is formed by the flow of the second resin material through the end of the tube portion 24 to increase the adhesive strength of the end face where the parts are joined.

Disclosed are coated fiber-containing articles, including paper, paperboard, and molded fiber, and methods for preparing such articles. A preferred method comprises heating paperboard containing a polymeric binder to a temperature sufficient to remove at least some moisture from the paperboard; applying an aqueous dispersion or solution of at least one water-dispersible or water-soluble polymer to the paperboard product; heating the paperboard to at least partially cure the water-dispersible or water-soluble polymer; and cooling the paperboard to at least 160° F. to reduce the tackiness of the cured water-dispersible polymer.

A prepreg composite material that includes a fiber layer and a resin comprising a thermoset resin component, a curing agent and a fibrous micropulp. The micropulp component is an aramid fiber having a volume average length of from 0.01 to 100 micrometers. The prepreg is useful in composite panel construction for minimizing fluid permeation into the cured structure. This prepreg is particularly suitable for making honeycomb sandwich panels. Film adhesives, liquid and paste resins containing aramid fiber micropulp are also disclosed.

A joint part 1 excellent in both properties of low fuel permeability and weldability. The joint part 1 includes a cylindrical main body 2, a welding member 3, provided on the cylindrical main body, to be welded on a rim of an opening end of a resin fuel tank 4, wherein the main body and the welding member are integrally formed by an alloy prepared by using main components of following components (A) and (B) and kneading the alloy at a temperature of not more than melting points of the component (A) and a following component (b), and the component (B) is present at an amount of 80 to 300 parts by volume based on 100 parts by volume of the component (A), and a modification ratio of the component (b) is 0.1 to 5% by weight; (A) an ethylene vinyl alcohol copolymer (B) a high density polyethylene wherein a following component (b) is a main component; (b) a modified high density polyethylene having at least one functional group selected from the group consisting of a maleic anhydride group and the like.

There are provided a structure of an opening portion for integrally forming an opening portion to a fuel tank main body made of a thermoplastic synthetic resin having at least an outer layer, an inner layer and a middle layer therebetween and its fabricating method. The opening portion is constituted by a cylindrical portion and a folded portion folded in a hairpin shape. At least a portion of the folded portion includes a compression portion compressed from a direction orthogonal to an opening face and more thin-walled than other portion. An outer layer of the cylindrical portion is integrally embedded with a portion of a lid lock member made of a metal in a ring-like shape having a plurality of lock holes, an engaging claw portion of an attaching member made of a metal in a ring-like shape having the engaging claw portion engaged with the lock hole of the lid lock member is engaged with the lock hole, and a lid member for closing the opening portion is clamped by the opening portion and the attaching member.

Provided is a method capable of effectively improving the rejection of a membrane without considerably lowering the permeation flux, even when the membrane has significantly degraded. The method of improving the rejection of a permeable membrane includes a step (amino treatment step) of passing an aqueous solution (amino treatment water) having a pH of 7 or less and containing an amino group-containing compound having a molecular weight of 1000 or less through the permeable membrane. After this amino treatment step, water having a higher pH than the amino treatment water is allowed to pass through the permeable membrane. Thus, by allowing the low-molecular-weight amino compound to pass through the membrane, a degraded portion of the membrane can be restored without considerably lowering the permeation flux of this permeable membrane, and the rejection can be effectively improved.

A flexible multi-layer pipe assembly comprising, in a radial direction from the inside to the outside:—(i) an inner barrier layer formed from a first fluoropolymer; (ii) an intermediate or core layer formed from a polymer or blend of polymers; (iii) an outer barrier layer formed from a second fluoropolymer.

An electronics module configured for use within a vehicle fuel tank. The electronics module includes a fluid encapsulant, and electronics immersed in the fluid encapsulant. Preferably, the electronics module includes a sealed housing for carrying the fluid encapsulant and electronics therein, and the fluid encapsulant includes a base fluid and additives to the base fluid to neutralize aggressive compounds in any fuel that may enter the sealed housing.

The invention provides a preserving agent for litchi and a preparation method of the preserving agent for litchi and relates to the technical field of vegetable and fruit preservation. The preserving agent comprises the following raw materials in percentages by weight: 0.5-1.2% of traditional Chinese medicine extract solution, 0.2-0.5% of sucrose ester, 0.3-0.5% of sodium chloride, 0.5-0.8% of konjak glucomannan, 0.2-0.3% of nanometer TiO2 and water accounting for all the rest percentages; the traditional Chinese medicine extract solution comprises the following raw materials in parts by weight: 5-10 parts of pumpkin seeds, 3-6 parts of pseudolaricis, 3-6 parts of radix gentianae, 2-5 parts of aloes, 2-5 parts of Chinese honey locusts and 2-5 parts of ulmus macrocarpa hance. The Chinese herbal medicines are used as raw materials of the preserving agent; the Chinese herbal medicines are used as antimicrobial substances, the konjak glucomannan is used as film-forming substance, the sucrose ester is used as emulsifier, the sodium chloride is used for sterilizing and color-protecting and the nanometer material is used as excipient, so that the preserving agent for litchi is obtained. The preserving agent for litchi is capable of preventing litchi from browning and rotting, so that commodity rate of the litchi is raised.

A silicon-based hydrogen pressure sensor module incorporates a low temperature cofired ceramic (LTCC) substrate that shields the cavity formed by the silicon membrane and cell body from hydrogen permeation. A bossed container filled with an oil material is mounted on the substrate and houses a sensor cell. The oil material may be impregnated with a hydrogen getter material.

The invention relates to a preparation method for a polyester fiber with compound ultraviolet ray resisting, aging resisting, moisture absorbing and quick drying functions. The method comprises an esterification reaction process, a polymerization reaction process and a spinning process in sequence, and comprises the following specific steps of: in an esterification reaction, introducing a third monomer with relatively large steric hindrance; after the esterification reaction and before a pre-polymerization reaction, adding titanium dioxide serving as a high-content delustering agent, a hindered amine light stabilizer and a hindered phenol antioxidant; after the pre-polymerization of polymerization reaction process and before final polymerization, adding an ultraviolet absorber; and beforethe spinning process, pre-crystallizing and drying polyester slices obtained in the polymerization reaction process, and designing a special-shaped section for the fiber. The polyester fiber obtainedby using the method has superior ultraviolet ray resisting, aging resisting, moisture absorbing and quick drying functions. As provided by testing, relevant technical indexes are that: the ultraviolet transmission is less than or equal to 5.0 percent, the wicking height is more than or equal to 120 millimeters, and the evaporation rate is more than or equal to 0.20g/hr after the polyester fiber is woven into a knitted fabric and a woven fabric.

Disclosed is a plastic dispensing tube container. The container has a head and a tube sleeve. The head also has a dessicant therein in an amount sufficient to reduce the permeation of moisture through a portion of or the entirety thereof.

Hermetic seal for a device includes a substrate. A first strip on the substrate has a first surface wettability and a second strip on the substrate has a second surface wettability different from the first surface wettability. The seal further includes a first cover strip having the first surface wettability spaced from the first substrate strip and a second cover strip having the second surface wettability spaced from the second substrate strip in contact with the first cover strip. A sealing member wets and adheres to the first substrate and cover strips but not the second substrate and cover strips.

A polishing pad has a sublayer and a polishing layer, wherein the surface of the outer peripheral edge of the sublayer can be at least partially treated to reduce the absorption or permeation of polishing fluid into the sublayer through the outer peripheral edge. The application of the surface treatment at least reduces the amount of polishing fluid absorbed by the sublayer of the polishing pad during the polishing process. The polishing pad of the present invention is useful in polishing microelectronic substrates and especially useful in chemical mechanical planarization of semiconductor wafers.

A vacuum insulation panel includes a core, and an outer skin material for surrounding the core, wherein the outer skin material includes a bending portion formed at one side surface thereof and sealing portions formed at three side surfaces thereof. A method for manufacturing a vacuum insulation panel includes preparing an outer skin material envelope by forming sealing portions at two side surfaces of an outer skin material including a bending portion formed at one side surface thereof, inserting a core into the outer skin material envelope, decompressing the inside of the outer skin material envelope, and forming a sealing portion at one side surface of the outer skin material envelope.

The invention relates to the structures of proton exchange membranes with different molecular permeabilities, especially to the proton exchange membranes suitable for the applications in Direct Methanol Fuel Cell (DMFC) and with the function of recovering water from the cathode. The polymeric structures are the designs of phase separated structures of the crystalline phase and the amorphous phases, thereby limiting the swelling of the materials and the space of ionic cluster structures in nano-scale to reduce the permeability of methanol fuels. On the other hand, by controlling of polymeric grafting reactions result in the reverse (from the cathode to the anode) permeability of the product water molecules on the cathode in the proton exchange materials greater than the permeability of methanol molecules in the fuels (from the anode to the cathode) due to the differences of fuel concentrations between the cathode and the anode of DMFC. Hence, it has the function of recovering water of the cathode and does not have the over-permeable phenomena as seen in methanol molecule.

Oxygen scavenging barrier polyamide compositions exhibiting high oxygen scavenging capability as well as good coinjection stretch blow moldability characteristics suitable for making multilayer PET bottles with good clarity and delamination resistance are claimed in this invention. The polyamide compositions of this invention comprise a slow crystallizing polyamide blend comprising (i) an amorphous, semiaromatic polyamide homopolymer, copolymer or mixture thereof and (ii) a semicrystalline, aliphatic polyamide homopolymer, copolymer or mixture thereof wherein in the weight ratio of (i):(ii) ranges from about 99:1 to about 30:70; at least one polyamide-compatible, oxidizable polydiene; and at least one oxidation promoting metal salt catalyst. The multilayer PET bottles, made with the polyamide compositions of this invention as the barrier layer, are suitable for extended shelf-life packaging of oxygen-sensitive food and beverage products such as beer and juices.

A fuel hose for an automotive vehicle has an end section to which a connection-partner member is to be fitted. The fuel hose comprises an innermost layer formed of rubber or synthetic resin. The innermost layer has an inner surface defining an opening through which fuel flows and has an end section corresponding to the end section of the fuel hose. An outer layer is formed outside the innermost layer and formed of a material lower in fuel permeability coefficient than the innermost layer. Additionally, an end covering material is formed covering a surface region of the innermost layer which surface region includes the inner surface at a part extending from a sealing position to an end face of the innermost layer and the end face of the innermost layer. The end covering material is lower in fuel permeability coefficient than the innermost layer.

There is provided a water treatment method using a water treatment flocculant that suffers from minimal secondary contamination with flocculation residues and contains an alkaline solution of a phenolic resin. A water treatment method involving the addition of a flocculant to water to be treated and subsequent membrane separation treatment. The flocculant contains an alkaline solution of a phenolic resin having a melting point in the range of 130° C. to 220° C. The water treatment flocculant is produced by a resole-type second-order reaction in the presence of an alkaline catalyst in which an aldehyde is added to an alkali solution of a novolak phenolic resin. The novolak phenolic resin is produced by a reaction between a phenol and an aldehyde in the presence of an acid catalyst.