713 results about "Plastic compounding" patented technology

The invention relates to a sealed cartridge, provided to be extracted under pressure, containing a substance (15) for preparing a beverage, comprising a dish (9) with a bottom (10) and a side wall (11), having substantially the shape of a frustum of a cone, and a circular edge with a diameter greater than the bottom, and a cover (12) welded to the periphery of the edge of the dish, in which the cover (12) consists of a flexible material which is impermeable to oxygen, chosen from the group consisting of aluminum, an aluminum/plastic composite, an aluminum/plastic/paper composite, pure or multi-layer plastic, the said cartridge not comprising a filter or a weakening zone and the cover being intended to be torn only through the effect of the force of the extraction fluid when extraction starts, the said cartridge comprising, in the dish at the level of the bottom, a barrier (13) that is automatically resealable against leakage of the substance upon withdrawal of the fluid injection needle.

An extruded composite utilized as a building material includes a base polymer, unseparated processed recycled carpet waste, and a filler material, which may be a wood filler or other natural fiber. Carpet waste may be separated into components that may be utilized in a variety of plastics applications, including extruded composites utilized as building materials. Separation may include shaving face fiber from bound fiber secured in a backing fiber and/or may include separating fiber pile and backing fibers from carpet adhesive to remove inorganic materials such as calcium carbonate.

Disclosed are a series of composite polymer composite structures formed by the coextrusion of at least two distinct polymeric compositions including a structural composition and a coating composition whereby the primary structural frame formed from the structural composition includes at least one, and typically a plurality, of longitudinal recesses or cavities. These recesses or cavities may, in turn, be filled with a third distinct polymeric composition that may include wood byproducts and/or a foaming or blowing agent.

Disclosed is carbon-containing urethane foam composite material, relating to urethane foam composite material. The composite material is carbon-containing soft urethane foam, or carbon-containing slowly-recoverable urethane foam or carbon-containing hard urethane foam. Apart from the necessary foam source and the auxiliary material, the raw material for preparing the urethane foam includes super-thin bamboo powder or charcoal powder. Furthermore, far-infrared powder, sterilized powder, silver ion powder, organic germanium powder, tea powder or Chinese herbal powder can be added into the raw material for preparing the urethane foam. The urethane foam can be made into bath sponge and washing sponge with the capabilities of adsorbing and degrading noxious gas, disinfecting and sterilizing, radiating far infrared rays and adjusting humidity or be made into pillows, cushions, mattresses and indoor decorations with medical and health care functions in daily life.

The instant invention involves a process used in preparing fibrous tows which may be formed into polymeric plastic composites. The process involves the steps of (a) forming a carbon fiber tow; (b) forming a thermoplastic polymeric fiber tow; (c) intermixing the two tows; and (d) withdrawing the intermixed tow for further use.

The invention provides a microneedles array, a method for manufacturing the microneedles array and a die for manufacturing the microneedles array. The microneedles array comprises a base and a plurality of microneedles which are integrated with the base, wherein a liquid storage cavity is arranged in the base, and each microneedle are provided with micro-pinholes which are communicated with the liquid storage cavity; the microneedles array is made of plastics, composite materials, and ceramics or metal materials by injection molding; and each microneedle has at least one inclined surface which is inclined towards the central line of the microneedle, and the outlet of each micro-pinhole is positioned on at least one inclined surface, so that the end of the outlet of the microneedle forms a pinnacle part. The die specialized for the invention comprises an upper die, a middle die and a lower die, wherein the middle die and the lower die are provided with cavities for forming the microneedles; and the upper die and the middle die are provided with grooves for forming the base. The three-plate die of the invention can be used for conveniently manufacturing the microneedles array with the pinnacles. Since the stripping process in the injection molding method is carried out step by step, the method has the advantages of small die drawing resistance and low manufacturing cost.

A lapboard siding and trim system is provided in which trim siding components for board-and-batten siding and associated trim components are manufactured using a co-extrusion process, whereby wood/thermoplastic resin composite material and polyvinyl chloride thermoplastic resins are co-extruded through a single die assembly, thereby producing a trim piece having a plastic composite component, that will be visible following installation, fused under heat and pressure to the polyvinyl chloride standoff and attachment fins, that will be hidden following installation. Also provided is a lapboard siding and trim system in which siding components for clapboard siding are manufactured by extruding wood/thermoplastic resin composite material through a die. Associated trim components are manufactured using the co-extrusion process described above. The siding and trim components are completely waterproof, and installation proceeds with almost no face nailing and almost no caulk.

The present invention relates to composite plastic moldings containing A) a thermoplastically formable, heat-resistant composite film having A1) a carrier film of a thermoplastic resin and A2) a layer of a heat-resistant soft touch coating on one side of the carrier film (A1) and B) a thermoplastic layer on the side of the carrier film (A1) facing away from the soft touch coating, wherein the soft touch coating (A2) is obtained from a composition containing i) polyurethanes and/or polyurethane-ureas which are free from hydroxyl and/or amine groups, ii) ionically modified polyurethanes and/or polyurethane-ureas which contain hydroxyl and/or amine groups, iii) at least one crosslinking agent, iv) optionally film-forming resins other than A1) or A2), and v) optionally additives. The present invention also relates to a process for the production of these composite moldings and their use in telecommunications equipment and in vehicle, ship and aircraft construction.

The invention relates to PVC (polyvinyl chloride)-based wood plastic and a preparation method thereof, belonging to the technical field of plastic compound modification processing. The invention aims at providing PVC-based wood plastic and a preparation method thereof which can produce a PVC-based wood-plastic section with good mechanical property and stability. The technical scheme is as follows: the PVC-based wood plastic comprises the following raw materials in parts by weight: 40-60 parts of PVC resin, 10-20 parts of wood meal, 0.2-1 part of polyethylene wax, 0.3-1 part of processing aid ACR-401, 2-6 parts of modifier CPE-135A, 1.5-4.5 parts of PVC composite heat stabilizer, 0.3-0.7 part of external lubricant, 1-3 parts of toner, 0.2-1 part of foaming agent, 2-7 parts of foaming regulator, 10-18 parts of calcium carbonate and 0.1-0.7 part of sodium bicarbonate. The preparation method provided by the invention is suitable for the extrusion molding of PVC-based wood plastic.

The composite plastic sheet includes facing layer, middle layer and base layer, the facing layer is made of PVC, modified PP or modified PE; the middle layer is made of PVA film or polyurethane thermosol film; and the base layer is made of foamed PVC, modified PP or modified PE. Over the facing layer, there is one layer of coated dulling agent with pressed pattern. The composite plastic sheet has good comprehensive performance and its adhering middle layer combines the facing layer and the base layer well. The composite plastic sheet has the advantages of excellent heat insulating and sound isolating performance, high shock resistance, high anticorrosive performance, high electric insulating performance, high strength, beautiful appearance and easy cleaning.

The water-thinned plastic composite printing ink consists of anionic polyurethane dispersing liquid, acrylic ester emulsion, pigment, dispersant, defoaming agent, polyethylene wax, water and small amount of isopropanol. The self made acrylic ester emulsion well compatible with the anionic polyurethane dispersing liquid results in good comprehensive performance and low cost of the water-thinned printing ink. The addition of crosslinking agent raises the wear resistance, attaching strength and stripping strength of ink layer. The trial water-thinned printing ink has a printing speed on a processed bi-directional polypropylene film of 30-50 m/min and stripping strength after compounding of 180 N/in. The water-thinned printing ink has fast drying speed and high wear resistance, and is especially suitable for printing on polypropylene, polyester film and other soft food packing material.

The invention discloses a fire-retardant cellulose reinforced plastic composite material and a preparation method thereof. The composite material is characterized by comprising 100 parts of thermoplastic high polymer and 20 to 50 parts of cellulosic material in part by weight, wherein at least one of the thermoplastic high polymer or the cellulosic material is a material after fire-retardant modification; the thermoplastic high polymer is polyethylene, polypropylene, polyvinyl chloride or polystyrene; and the cellulosic material is one of or a mixture of more than two of the following materials in a mass ratio: wood flour, bamboo powder, wheat straw powder, corn straw powder, bran or rice chaff of which the grain size is 50 to 400 meshes, and cellulose fibers having no textile processing value. The preparation method comprises the following steps of: firstly, performing corresponding fire-retardant modification on the thermoplastic high polymer or/and the cellulosic material; secondly, uniformly mixing the thermoplastic high polymer and the cellulosic material by using a screw extruder; thirdly, extruding the mixture out after fusion; and finally, performing compression molding forming.

The invention discloses a preparation method of a cotton stalk and plastic composite material. The steps of the method is that: the cotton stalk is grinded into cotton stalk powders with 40 to 160 meshes, then the cotton stalk powders are dried until the moisture content is less than or equal to 3 percent, and the dried cotton stalk powders are stirred and sprayed with coupling agent solution simultaneously, and the modified cotton stalk powders are prepared; the modified cotton stalk powders are then mixed evenly with plastic resin, compatilizer, lubricant, stabilizer, antioxidant, filling materials and flame retardant, then mixed material is prepared; after the mixed material is extruded from an extruding machine, the cotton stalk and plastic composite material is obtained. The invention properly solves the problems of compatibility between the cotton stalk and the plastic and treatment technology of surface of raw materials, realizes comprehensive utilization of cotton stalk waste which can be used for replacing lumbers which are at the state of shortage, increases the added value of the cotton planted by a cotton grower, and solves the problem of utilization of the cotton stalk wastes.

This invention relates to a agricultural remainder/plastic composite enhanced by isocyanate. The weight percentage of its components is that agricultural remainder fabric material 10-60%, plastic 10-60%, couplant 0.3-10% which is percentage weighed by bone dry weight of agricultural remainder fabric material. It is complex made by the technology of wood based panel. Its preparation is that at first agricultural remainder fabric material is pretreated into paring, fiber or powder and dried with water content 0-25%, and then thermoplastic is classified and shattered into lamellar or granular; At last, two kinds of materials, together with 0.3-10% couplant, are mixed for pretreatment in ordinary temperature, then a mixed powder is made. Pavement and thermocompression are conducted at 130-223DEG C and 1-20MPa about 1-20min, then the plate is received by cutting-edge at ordinary temperature.

The invention discloses a straw-derived composite material, i.e., proper-plasticity modified straw biomass obtained through carrying out modification on straw powder by using ore powder and adjuvants, new materials formed through further compounding the modified straw biomass and plastics and a method for producing straw-plastics products by using the new materials. According to the method, firstly, the straw biomass is crushed to certain fineness, then, the straw biomass powder is mixed with the ore powder in the presence of an esterifying agent and a coupling agent so as to form modified straw powder, and the modified straw powder is further compounded with the plastics in the presence of the adjuvants such as a grafting agent so as to form the new materials, which replace wood-plastics and plastics, and new products.

The invention relates to a halogen-free flame-retardant polyethylene terephthalate engineering plastic composite material and a preparation method thereof. The halogen-free flame-retardant polyethylene terephthalate engineering plastic composite material is prepared by commonly introducing PET resin, glass fiber, flexibilizer and additional three components of A, B and C into a twin-screw extruder and carrying out extrusion, cooling and pelletizing; wherein, the A component is mother particles which are prepared after mixing organic rare earth phosphate salt nucleating agent, antioxidant, external lubricant and polyethylene; the B component is the mother particles which are prepared after mixing pigment and PE; the C component is a flame-retardant system which is obtained by complexing phosphorus-containing inorganic material melamine pyrophosphate and phosphorus-containing organic material ammonium polyphosphate to form phosphonate salt and then using rare earth coupling agent for treatment. The PET in the invention is characterized by rapid crystallization rate and good mobility, and the prepared product is characterized by excellent comprehensive performance, environmental friendliness and content of environment-associated substances which is in line with the EU RoHS standards, thereby being applicable to electronic and electrical appliance products.

The present invention is process and apparatus for producing steel net reinforced plastic composite pipe as one kind of steel structure reinforced plastic composite pipe. The process includes: extruding hot molten plastic into the inner plastic forming machine and cooling to obtain the inner plastic pipe blank layer, winding steel wire and arranging longitudinal wire onto the inner plastic pipe blank layer to form steel net, setting inside the first plastic pipe forming machine and extruding hot molten plastic into the first plastic pipe forming machine to form the composite plastic blank comprising one inner plastic pipe blank layer, one steel net layer and one outer plastic coating layer, and cutting to obtain the steel net reinforced plastic composite pipe. The equipment includes also one cooling water tank.

A composite steel skeleton-plastic pipe is prepared through welding the warp steel wires with the weft steel wires by net shaper and fuzzy resistance welding technology to form a netted steel skeleton, feeding it in a pipe shaping unit while extruding the fused plastics in it for combining the steel skeleton with the fused plastic, and cooling. Its making machine and the pipeline of said pipe are also disclosed.

A water conveying pipe includes a composite reinforced outer pipe formed by spiral winding, and a composite reinforced inner lining pipe formed by spiral winding. The outer tube is a metal-reinforced plastic composite corrugated tube structure or a tube structure with metal-reinforced plastic composite vertical ribs. The inner lining pipe is formed by at least two layers of fiber-reinforced plastic composite strips that are continuously spirally wound along the inner wall of the outer pipe and attached to the inner wall of the outer pipe, and the inner lining pipe covers the helically wound seam of the outer pipe . The present invention also provides strips, methods and devices for manufacturing the above-mentioned water delivery pipe lining pipes. The pipeline can be used as a large and medium-sized water pipeline in the water source transmission of urban water plants.

Structural members for doors and the like can be manufactured from plastic foamed composites containing wood flour by the steps of (1) dry mixing a blend of powders including PVC powder, wood flour, powdered thermal stabilizers, powdered foaming agent and a powdered gelatinization agent, (2) adding the mixed powder to a thermal stirring mixer to obtain a homogeneous dispersion of the several powders (3) transferring the homogeneous dispersion of powders to a cold stirring mixer and stirring at speeds sufficient to avoid agglomeration of the homogeneous dispersion of the several powders and (4) placing the non-agglomerated homogeneous dispersion of the several powders in a feeding hopper of an extrusion machine and extruding shapes for the desired components. The vacuum venting of the extrusion machine can be controlled to achieve components with more desirable surface features. Lubricants can be added to the homogeneous dispersions of the several powders to aid in the extrusion process.