228 results about "Plastic polymer" patented technology

Provided is a method of makinga stretched, multilayer breathable film having the combination of properties of: (i) providing a barrier to microorganisms; and (ii) providing a barrier to blood and bodily fluids; said method comprising the steps of: (a) simultaneously extruding at least a five-layer film from a die, said five-layer film having as a minimum the following structure: C:A:B:A:C; where B comprises a microporous core layer containing at least one thremoplastic polymer and at least one particulate filler; C comprises an outer monolithic layer containing a hydrophilic polymeric resin capable of absorbing and desorbing moisture and providing a barrier to aqueous fluids and microorganisms, said C layer being substantially free of particulate filler; and A comprises a microporous adhesive layer for bonding said C layers to said core layer B, wherein said C layer sustantially prevents the buildup of particulate filler material on said die during said extrusion step; (b) stretching said extruded five-layer film to thereby form micropores in said microporous core layer and said microporous adhesive layer, wherein said stretching step is conducted and said microporous core layer and said microporous adhesive layers have been formulated so as to provide micropores which allow the passage of gaseous water but substantially prevent the passage of liquid water. The invention also relates to a multilayer film.

The invention relates to a flameproof, essentially halogen-free polymer composition, containing the following: a) 100 parts by weight of a thermoplastic, cross-linkable or cross-linked, elastomeric and / or duroplastic polymer; b) 10 to 200 parts by weight of magnesium, calcium, zink and / or aluminiumhydroxide and / or their double hydroxides; c) 1 to 50 parts by weight of an organic intercalated sheet silicate.

This invention features a combination squeeze toy and chew toy for an animal, such as a dog, comprising an assemblage of a first formed material and second formed material, having different material properties. Said first material forming article body portion, hereinafter named as “toy body portion,” comprised of resiliently deformable, soft elastomeric latex, vinyl or like material. Said second material forming article chew portion, hereinafter known as “toy chewable portion” comprised of substantially rigid or semi rigid thermal plastic polymer, nylon or like material. The toy body portion is hollow, having interior space and preferably spherical in shape. The toy chewable portion is substantially solid in form and preferably cylindrical in shape. In the preferred embodiment of this invention, said toy body portion has said toy chewable portion located centrally through said toy body portion and protruding through each side thereof.

A plug-in connector for connecting and transmitting signals from a circuit board to a back plane wherein the plug-in connector comprises an optical conductor for transmitting optical signals into the plug-in connector and at least one mirror coupled to the optical conductor for deflecting light at an approximately 90° angle in the plug-in connector. There is also a lens system disposed adjacent to the mirror and coupled to the optical conductor for coupling the light into the plug-in connector. This optical conductor can comprise a plurality of glass fiber lines for coupling in the optical signal. Alternatively, this optical conductor could be lines formed from plastic polymers.

The invention provides a full-automatic and high-throughput micro-fluidic chip system and method for detecting pesticide residue, used for field detection of pesticide residue based on enzyme inhibition reaction. The full-automatic and high-throughput micro-fluidic chip system is mainly composed of a portable analytical detector and a disposable micro-fluidic chip; the plastic polymer material of the micro-fluidic chip is manufactured through existing micro-machining technology; the micro-fluidic chip is composed of a central clamping groove, an extraction chamber, a sample chamber, a reaction chamber, a detection chamber, a micro-groove, a micro-hole and a quality control bar code; reagents (comprising an extracting solution, enzyme, a colour developing agent and the like) required for detecting pesticide residue are fixed in the micro-fluidic chip; the functions of sampling automatically and quantitatively, distributing a fluid, carrying out biochemical reaction and molecular recognition and the like can be realized; a fluid operation and control module, a photoelectric detection module, a data analyzing and processing module and an information storage and communication module are integrated in the portable analytical detector; operation and control of biochemical reaction in the micro-fluidic chip and rapid analysis and detection of to-be-detected indexes and pesticide residue can be realized; and thus, the micro-fluidic chip system and the method provided by the invention are particularly applied to full-automatic and high-throughput detecting and screening of pesticide residue in the samples, such as fruits, vegetables, soil and water.

Optically-activated particles for use in cosmetic preparations. The optically-activated particles include a plurality of substrate particles selected from the group consisting of nylons, acrylics, polyesters, other plastic polymers, natural materials, regenerated cellulose, metals and minerals; an optical brightener chemically bonded to each of the plurality of substrate particles to form integral units in the form of optically-activated particles for diffusing light to reduce the visual perception of skin imperfections, including cellulite, shadows, skin discolorations, and wrinkles; and each of the optically-activated particles are encapsulated with a UV transparent coating to increase the diffusion light to further reduce the visual perception of the skin imperfections. The encapsulated optically-activated particles are able to absorb ultraviolet radiation and emit visible light; and the encapsulated optically-activated particles are able to both scatter and absorb light in a diffuse manner in order to reduce the visual perception of skin imperfections, including cellulite, wrinkles, shadows, and skin discolorations, when the optically-activated particles are applied to the skin surface. The encapsulated optically-activated particles are used in the making of cosmetic preparations such as skin lotions, creams, shampoos, body and skin rinses, bath gels, soaps, hair conditioners, color conditioners and rinses, hair color solutions, foundation powders (compressed or loose), tooth pastes, oral rinses, and any acceptable cosmetic vehicle or medium.

The present invention provides an improved surgical blade and trocar system for accessing the retina and other parts of the eye while doing vitreo-retinal and cataract surgeries, including surgeries for macular degeneration. The eye surgeon uses an improved surgical blade for vitreo-retinal and cataract surgeries having a generally flat, V-shaped, W-shaped, or “extended W” shaped cross-section. Using the improved surgical blade, the surgeon creates a multi-planar, self-sealing surgical wound, first by directing the surgical blade substantially perpendicular to the eye surface, then redirecting the blade to follow the general curvature of the eye globe, and finally redirecting the blade to enter the interior of the eye. The improved surgical blade is used with an improved trocar system having two main parts-a relatively rigid, wide-mouthed outer segment and a generally thin-walled, collapsible plastic polymer or metal mesh sleeve that spans the surgical wound and substantially molds to its contour. The improved surgical blade and trocar system can be adapted for use in either vitreo-retinal or cataract surgeries.

[A method and apparatus for enclosing, controlling and suppressing the detonation of explosives in an explosion chamber is disclosed. The device comprises an elongate double-walled steel explosion chamber anchored to a concrete foundation, and having a double-walled access door for charging new workpieces, and a double-walled vent door for discharging the products of the explosion. The double walls of the chamber, access door and vent door are filled with granular shock damping material such as silica sand, and the floor of the chamber is covered with granular shock-damping bed such as pea gravel. Along the outside of the chamber are steel manifolds from which a linear array of vent pipes penetrates the double walls of the chamber, with each pipe terminating in a hardened steel orifice through which the explosion combustion products pass. Within the chamber, plastic polymer film bags containing water are suspended from steel wires over the explosive material, and at each end of the chamber.] A method and apparatus for containing and suppressing the detonation of explosives utilizing a sealable double-walled chamber having a floor, an access door and a vent door. The chamber walls are filled, and the floor is covered, with granular shock-damping material. Orificed vent pipes penetrate the chamber walls to vent explosion products into one or more exhaust manifolds. Water-filled bags are positioned around the explosive to absorb energy from the detonation.

A double walled container is provided for insulating a beverage. An outer insulating shell or container is secured to the inner container that holds the beverage. A gap exists between the outer container and inner container and the air in the gap acts as an insulating barrier. The inner container is preferably a standard aluminum container. The outer container is preferably made from aluminum or a plastic polymer. The outer container may have annular or longitudinal grooves that assist in securing the outer container to the inner container, and the grooves may also provide an enhanced gripping surface as well as a visually pleasing aesthetic design. The outer container may include a base, or the base may be eliminated in favor of a sleeve configuration for the outer container.

A latently crimpable conjugate fiber is constructed using a first component containing an ethylene-α-olefin copolymer polymerized with a metallocene catalyst and a second component formed from a thermal plastic polymer having a melting point T2 higher than a melting point T1 of the first component, such that the first component is exposed with an exposed length of at least 20% relative to a peripheral length of the fiber, and which fiber has a single fiber dry heat shrinkage percentage of at least 50%, which is determined according to JIS-L-1015 (dry heat shrinkage percentage) at 100° C. under an initial tension of 0.018 mN / dtex (2 mg / d) for 15 minutes and a single fiber dry heat shrinkage percentage of at least 15%, which is determined under the same condition under an initial tension of 0.450 mN / dtex (50 mg / dtex) for 15 minutes. The latently crimpable conjugate fiber develops crimps and has thermal adhesiveness at a low temperature.

A vehicle shock absorber includes a housing, and a shock-absorbing member. The housing has at least one hollow formed therein, is formed of a rigid material, and is fixed to a bone structural member of vehicles. The shock-energy absorbing member is disposed in the hollow of the housing at least, and is formed of a super plastic polymer material. The super plastic polymer material exhibits a tensile breaking elongation of 200% or more, a yield strength of 20 MPa or more with respect to a predetermined strain, and a tensile elastic modulus of 400 MPa or more.

A double walled container is provided for insulating a beverage. An outer insulating shell or container is secured to the inner container that holds the beverage. A gap exists between the outer container and inner container and the air in the gap acts as an insulating barrier. The inner container is preferably a standard aluminum container. The outer container is preferably made from aluminum or a plastic polymer.

The invention relates to a catheter for endovascular treatment on hypertension, in particular to a medical catheter for clinical endovascular intervention treatment on hypertension. The catheter has the functions of monitoring the temperature of the vascular tissue of the renal artery and measuring the local impedance of the tissue of the renal artery, and is used for carrying out feedback regulation on radio and high frequency current intensity to block bilateral renal sympathetic nerves and interdict sympathetic nerves to excite the kidney to generate and secrete renin-angiotensin, thereby achieving the purpose of reducing blood pressure. The catheter provided by the invention is made by compositing temperature plastic polymers and wire meshes, wherein the hardness of a near end is larger, a far end is softer, and multiple channels are formed in a catheter body; a far-end electrode is made from platinum (or gold) composite materials at the front end of the catheter, and multiple leads and drawing wires of the electrode are connected with a handle and a joint through the channels in the catheter body; and high-efficiency electrical isolation pipes and drawing pipes arranged in the channels of the catheter body ensure electrical signal transmission and smooth traction, thereby finishing bending and stretching operations.

A breathable, elastic, film laminate including layers of an inherently breathable, elastic polymer film alternately stacked with layers of a filled plastic polymer. The laminate may be made by grafting a thermoplastic polymer to an elastomer to form an inherently breathable elastic polymer, extruding, the elastic polymer through a die, extruding the filled plastic polymer through a die, stacking the extruded elastic polymer with the extruded plastic polymer while the polymers are in a melt-extrudable state to create a multilayer film laminate, and stretching the laminate.

The invention relates to a wood-plastic composite prepared by use of short fiber and a preparation method thereof. The wood-plastic composite comprises short fiber, long fiber, plastic, coupling agent and auxiliaries, wherein the auxiliaries include a lubricant, a heat stabilizer and an antioxidant. In the invention, the wood-plastic composite is prepared by taking short fiber waste and long fiber as reinforcing materials and thermoplastic plastic polymer as a matrix; and the preparation method comprises the following steps: performing pretreatment of raw materials, adding long fiber and mixing at a high speed, performing mechanical activation coupling and solid phase modification, adding plastic and mixing at a high speed, plastifying and performing hot-press forming to obtain the wood-plastic composite. The wood-plastic composite provided by the invention has the advantages of low cost, good mechanical properties, lower density than common wood-plastic composite, simple production process, no pollution during production and the like.

The invention relates to a method for producing big high strength plastic coil tube which uses coil material to form tube wall, wherein the coil material is a composite plastic section bar formed by an inner core and an outer layer, which is alternatively or irregularly arranged, and nearby side walls are fused to connected or adhered by fused material, to be screwed to form tube wall. The coil material is drawn to direct the molecule longitudinally. The outer layer is thermal plastic, while the inner corn is strength material and / or flameproof material and / or static resistance composed in plastic base material. The fusing connecting material is plastic polymer or added with strength material and / or flameproof material and / or static resistance, to form plastic fused material. The strength material is distributed in the coil material and / or fusing connecting material, directionally distributed along the screw of high-strength coil tube. The invention has high strength, flameproof property and static resistance.

A specialty bullet is disclosed that is adapted to transmit a tranquilizing fluid upon impact with a target for purposes of immobilizing the intended target without causing great harm to the target or the surrounding area. The specialty bullet is sized and shaped like that of a conventional bullet so that it can be fired from a conventional firearm; however, the concept could work with innumerable types of ammunition. The disclosed invention includes a so-called "Collapsule" bullet, which is a molded, hollow cavity fabricated of a high-strength malleable plastic polymer that is filled with a tranquilizing fluid. The bullet is fitted with a so-called "Injectile," which is a hypodermic injection spike (to transmit the tranquilizing fluid) that is backed and driven by an inertia base mass (i.e., lead core or other suitable) located at the base of the bullet. The disclosed invention provides law enforcement officials with a non-lethal (or less lethal) deterrent to life-threatening situations, including aircraft hijackings and other terrorist activities.

The invention belongs to high molecular materials and in particular relates to flame-retardant heat-resistant polyurethane foaming plastic. The polymer, namely the flame-retardant heat-resistant polyurethane foaming plastic, contains a residue structure obtained after reaction of heterocyclic polyol and polyisocyanate, and a flame retardant or flame-retardant polyol is added in the preparation process. The flame-retardant heat-resistant polyurethane foaming plastic is prepared by carrying out a reaction on heterocyclic substances, polyester or polyester polyol, polyisocyanate, flame-retardant polyol and the like, or adding the flame retardant instead of the flame-retardant polyol. As the heterocyclic structure is introduced in polyurethane, except for the characteristics of the common polyurethane foaming plastic, the flame-retardant heat-resistant polyurethane foaming plastic further has excellent heat resistance, corrosion resistance and more excellent mechanical property and is high-grade flame-retardant polyurethane foaming plastic; and a preparation process of the flame-retardant heat-resistant polyurethane foaming plastic is environment-friendly and non-toxic. The defects that the existing polyurethane is low in heat resistance, poor in flame retardance and the like are overcome; and the flame-retardant heat-resistant polyurethane foaming plastic can be dried at low temperature, is convenient to use and high in cost performance and can be widely applied to the fields of industrial construction materials, high-grade building materials, heat-preservation and heat-insulation materials and the like.

The invention relates to a process for the manufacture of core-shell perfume particles by emulsion polymerisation and to the products obtainable by such a process. The core of the particles comprises a perfume and the shell (which preferably comprises an aminoplast polymer) also comprises a non-ionic deposition aid (such as locust bean gum) which is substantive to textiles. The process of the invention is characterised in that, during the emulsion polymerisation step, the solids content of the polymerisation mixture does not fall below 25% wt. The particles obtained by the process are suitable for inclusion in laundry products and show significantly improved deposition and retention onto fabrics being laundered as compared with particles formed at lower solids levels.

The invention relates to method for producing strengthen macromolecule polyethylene coil tube, which uses at least one layer of macromolecule polyethylene section material as coil material alternatively or irregularly arranged, and nearby side walls are fused to connected or adhered by fused material, to be screwed to form tube wall. The coil material is drawn to direct the molecule longitudinally. The macromolecule polyethylene base material is added with strength material and / or flameproof material and / or static resistance composed. The fusing connecting material is plastic polymer or added with strength material and / or flameproof material and / or static resistance, to form plastic fused material. The strength material is distributed in the coil material and / or fusing connecting material, directionally distributed along the screw of high-strength coil tube. The invention has high strength, flameproof property and static resistance.

The invention provides a planar element which is intrinsically heatable and which is particularly suitable for attachment to multi-dimensionally curved surfaces. For this purpose the planar element features particularly high deformability, achieved in accordance with the invention through a planar element having a layer sequence comprising a heating layer and a contacting layer, each of these twolayers being composed of a polymeric material based on elastomers and / or on plastic polymers which have a particular elongation at break and at the same time a particular tensile elasticity modulus. Furthermore, the invention provides an adhesively bonded assembly comprising a bonding substrate and a planar element of the aforesaid kind, a method of producing a planar element of the aforesaid kind, and the use of such a planar element for heating an adhesively bonded assembly.

The invention relates to a rubber modifier and an application method thereof. The rubber modifier comprises the following components by mass percent: 70-90% of rubber powder, 5-30% of softener, 0-30% of plastic polymer materials and 0-10% of active agent. The rubber modifier works together with no less than 70% of rubber powder to consume a large quantity of waste rubber; since the softener is added to the rubber powder, rubber material becomes soft and the rubber powder and / or plastic polymer materials can be better swelled and dispersed into the asphalt mixture or asphalt; the rubber powder, the softener and / or the plastic polymer materials, and the active agent generate synergistic effects; the rubber modifier disclosed by the invention has excellent ageing resistance and low viscous flow temperature, can be used for preparing the rubber asphalt mixture by a dry method and also can be used for preparing the rubber asphalt by a wet method; the heating temperature of the asphalt and the asphalt mixture can be reduced. Thus, high-temperature aging of the asphalt is prevented and energy consumption and carbon emission are greatly reduced. The product disclosed by the invention is easy to store; the blending. Transportation and storage costs are effectively saved and the production cost is greatly reduced.

A double walled container is provided for insulating a beverage. An outer insulating shell or container is secured to the inner container that holds the beverage. A gap exists between the outer container and inner container and the air in the gap acts as an insulating barrier. The inner container is preferably a standard aluminum container. The outer container is preferably made from aluminum or a plastic polymer. The outer container may have annular or longitudinal grooves that assist in securing the outer container to the inner container, and the grooves may also provide an enhanced gripping surface as well as a visually pleasing aesthetic design. The outer container may include a base, or the base may be eliminated in favor of a sleeve configuration for the outer container.

The present invention provides an RP system which can directly use hot melt polymers for fabricating porous 3D construct for cell culture and other biomedical applications based on a CAD design. To realize the direct use of polymer hot melt, the RP system uses a hot melt chamber which is mounted on a robotic dispensing ann or a XYZ motion control system. The hot melt chamber is equipped with a delivery mechanism to force the molten polymer passing through a nozzle. The extruded polymer thin filament deposits onto the positions according to the computer generated model, in a layer-by-layer fashion, similar to FDM. The present invention can use any type of thennal plastic polymer pellets, beads, particles, which are suitable for extrusion and injection molding, as well as composites of two or more different thermal plastic polymer blends, inorganic particle / thennal plastic composites.

A fan member particularly for use in a vehicle cooling system. A formed metal hub member with a plurality of plastic polymer blade members. The blade members are overmolded on the hub member, preferably individually. The plastic polymer material is molded through openings in the hub member to help securely hold the blade members in place.

A method for coating a metal having a metal surface layer having an oxide layer thereon with a corrosion-inhibiting polymer resin layer. The method comprises contacting the surface of the metal with a pretreatment composition comprising an organophosphorus compound comprising phosphorus and an alkyl group capable of interacting with a plastic monomer resin or plastic polymer resin; and contacting the pretreated metal surface with a sealant composition comprising the plastic monomeric and / or polymeric resin.

The present invention provides an RP system which can directly use hot melt polymers for fabricating porous 3D construct for cell culture and other biomedical applications based on a CAD design. To realize the direct use of polymer hot melt, the RP system uses a hot melt chamber which is mounted on a robotic dispensing ann or a XYZ motion control system. The hot melt chamber is equipped with a delivery mechanism to force the molten polymer passing through a nozzle. The extruded polymer thin filament deposits onto the positions according to the computer generated model, in a layer-by-layer fashion, similar to FDM. The present invention can use any type of thennal plastic polymer pellets, beads, particles, which are suitable for extrusion and injection molding, as well as composites of two or more different thermal plastic polymer blends, inorganic particle / thennal plastic composites.

The invention discloses a flow divider for a nose, comprising a conical or cylindrical flow divider body, wherein a flow way set is arranged on the surface of the flow divider body and comprises a first flow way set formed by two flow ways in a bifurcation way, and the tail end of each flow way in the first flow way set is provided with a second flow way set formed by two flow ways in a bifurcation way. The depth of the flow ways are from deep to shallow so that the pressure can be fully released when a molten body is extruded. The two sets of flow ways have smooth transition, and the bottom sides of grooves are in a circular-arc shape. A circular arc-shaped grading ring is arranged between the second flow way set and an outlet of the flow divider body. The invention can reduce the material flowing resistance of a molten plastic polymer in the process of passing through the flow divider to a nose mouth mould so that the pressure is fully released, and therefore, the invention has the advantages of balanced flow, stable volume, uniform flowing speed and constant temperature, thereby ensuring the stability of product quality.