18 results about "Thermoplastic" patented technology

A polymeric twist tie 20 is taught that utilizes a thermoplastic monofilament 22 having an oriented characteristic produced by stretching a pre-heated monofilament through a heated, volume reducing die. The monofilament 22 is then coated 30 circumferentially with an extrusion of thermoplastic enclosing the monofilament while simultaneously forming a pair of opposed wings 32 integral with the coating. The wings extend outwardly from the coated monofilament allowing the tie to be twisted upon itself with the monofilament retaining its basic configuration and the wings stretching and bending to conform within a coupled twist. The oriented monofilament is fabricated using high density polyethylene and the covering extruded with low density polyethylene which are dissimilar in density, melt index and basic thermoplastic morphology.

An improved breast form, constructed according to the principles of this invention, comprises a flexible chamber formed from a pair of polyurethane sheets that are sealed together along a perimeter edge of the chamber. A volume of silicone gel composition is sealably disposed within the flexible chamber. A fabric material is disposed over and permanently joined to a surface portion of each of the polyurethane sheets. The fabric material forms an exterior surface of the breast form, and is made from a four-way stretchable fabric.

The invention discloses a thermoplastic starch-polyvinyl alcohol composite plastic film, and relates to the technical field of film production. The composite plastic film is made by using the following raw materials, by mass, 80-100 parts of (self-made) thermoplastic starch, 40-55 parts of polyvinyl alcohol, 10-15 parts of acrylic acid, 5-10 parts of benzoyl peroxide, 7-12 parts of oxidized polyethylene wax, 4-8 parts of hydroxyethyl cellulose, 5-12 parts of calcium stearate, 5-15 parts of iron oxide, 3-6 parts of gelatin, 5-10 parts of urea, and 8-15 parts of polyethylene glycol. The composite plastic film made in the invention reserves the good biodegradation performance of starch and effectively improves the mechanical performances of a plastic film, and a covalent bond introduced due to the addition of a cross-linking agent can substitute a hydrogen bond in order to improve the mutual crosslinking among starch, polyvinyl alcohol and other raw material molecules.

A method for magnetically aligning non-particles within a polymer, involving adding a magnetic nano-particle filler to a plastic material, such as a molten thermoplastic. The magnetic property allows the filler or particles to be aligned through the use of magnetic fields during the molding process. In one embodiment, the nano-particles are synthesized to a specific size, and are made by applying suitable coatings to existing fillers.

The invention provides mining graphene, carbon black and polystyrene composite particles, comprising, by weight, 100 parts of high-density polyethylene, 0.1-2 parts of graphene, 1-10 parts of carbon black, 4-15 parts of a flame retardant, 0.5-3 parts of a dispersion, 0.5-4 parts of a nucleating agent, 2-10 parts of a toughener, and 0.5-4 parts of an antioxidant. The invention also provides a preparation method and application of the mining graphene, carbon black and polystyrene composite particles. The graphene/polystyrene prepared herein may reach 25 MPa in tensile strength and 402% in elongation at break; the mechanical properties may fully meet Tensile Property Measurement for Thermoplastic Plastic Pipes GB/T8804-2003 in the coal mine industry standard MT558.1-2005, to be specific, tensile strength of >/=9 Mpa and elongation at break of >/=300%.

The invention discloses a TPO (thermoplastic polyolefin) waterproof roll material and a preparation method thereof. The TPO waterproof roll material comprises, by weight, 8 parts of TPO, 2 parts of EVA (ethylene vinyl-acetate copolymer) and 2 parts of combined flame retardant, wherein the TPO is santoprene 101-55, the EVA is delrin 750, and the combined flame retardant is Al (OH)3 and Mg (OH)2. The waterproof roll material is reasonable in proportion, the TPO waterproof roll material prepared by the method has fine flame resistance and low-temperature bending resistance, the softness of a finished product prepared by the method is improved, and construction is facilitated.

Systems and methods for a multi-layered peel-away sheath assembly for insertion of a blood pump including a sheath hub and a sheath body having a proximal end that is connected to the sheath hub, anda distal end. The sheath body comprises multiple layers including a reinforcing layer. The reinforcing layer improves flexibility and kink resistance of the assembly The reinforcing layer can compriseLCP, PEBAX, stainless steel, Nitinol, or Kevlar. The reinforcing layer may be a laser-cut hypotube or a braided or coiled filament. The first layer material and the third layer material are thermoplastics, including PEBAX or TPU. The reinforcing layer has at least one discontinuity, which is aligned with peel-away lines in the sheath body to allow an operator to peel-away the assembly. The peel-away lines are formed of inner, outer notches, or both. The sheath hub also includes a discontinuity to allow the sheath hub to peel-away.

The invention discloses a monocomponent thermoplastic acrylic surfacer, which comprises, by weight, 72%-81.75% of thermoplastic acrylic resin; 2%-3% of 15% polymeric was; 0.5%-0.2% of dispersant; 0.15%-0.5% of leveling agent; 0.1%-0.3% of defoamer; 3%-5% of trimethyl benzene; 2%-3.5% of zinc stearate; 0.5% of n-butyl acetate; 1%-3% of MIBK; 1%-2% of light stabilizer, 8%-10% of n-butyl acetate; dispersing to the average fineness of no bigger than 35 micrometers, Tu-4 cup viscosity: 20s-30s/25 DEG C. The present invention is characterized by strong hardness, anti-friction and anti-scratching properties which makes the present invention able to meet the outdoor woodwork application.

Thermoplastic articles are molded from thermoplastic polyurethane compounds including blends of aliphatic poly-caprolactone thermoplastic polyurethane and aromatic thermoplastic polyurethane selected from aromatic polyester thermoplastic polyurethane, aromatic polyether thermoplastic polyurethane, and combinations thereof. The thermoplastic articles exhibit enhanced stain resistance, as represented by achieving a rating of 2 or better according to Blue Jean Abrasion Test, relative to thermoplastic articles molded from thermoplastic polyurethane compounds including either aromatic polyester thermoplastic polyurethane or aromatic polyether thermoplastic only, while also having good clarity (i.e., low haze) and other desirable properties. The thermoplastic articles can be especially useful as protective cases for handheld electronic devices.

The invention discloses ACM thermoplastic vulcanized rubber and a preparation method and application thereof. The preparation method comprises the following steps of: adding ACM rubber, a polymer, a compatilizer, a vulcanizing agent, an anti-UV agent and an antioxidant into a twin-screw extruder together by a weightless metering scale; the ACM thermoplastic vulcanized rubber is obtained through extrusion, the plasticity of the ACM rubber is improved through addition of the polymer, the rubber blend is subjected to phase inversion in the processing process, the obtained product can be repeatedly used, recycling of leftover materials and waste products is facilitated, the utilization rate of rubber materials is increased, and pollution of solid waste is reduced.

The invention discloses a thermoplastic PVDF fluorocarbon powder coated aluminum veneer. The thermoplastic PVDF fluorocarbon powder coated aluminum veneer comprises an aluminum alloy base layer plate,a passive film and a PVDF fluorocarbon powder layer. The production process of the aluminum veneer comprises three parts, namely a sheet metal process, a pretreatment process and a spraying process,according to the aluminum veneer surface coating technology, a one-time-coating two-time-baking process is adopted, that is, after pretreatment is completed and the passive film is formed, baking is conducted for 8-10 minutes at the temperature of 60-100 DEG C to remove tap water and pure water remaining on the plate surface in the pretreatment process to make the aluminum plate reach a state suitable for spraying, and then PVDF fluorocarbon powder is sprayed, and then baking is conducted for 15 minutes at the temperature of 235 DEG C for curing to form the veneer. The new building decorationmaterial product in which the PVDF fluorocarbon powder coating is adopted as the surface coating layer of the aluminum veneer and which is developed through the one-time-coating two-time-baking production process has good wear resistance, corrosion resistance, weather resistance and other new properties and is suitable for being applied to coastal or offshore building exterior wall decoration withthe severe environment, and high corrosion and salt fog properties.

The invention belongs to the technical field of material test pretreatment, and particularly relates to a sample preparation and observation method for fiber-induced thermoplastic resin crystallization. The sample preparation method for inducing the crystallization of the thermoplastic resin by the fiber comprises the following steps: adhering the thermoplastic resin to the surface of the fiber to obtain the fiber adhered with the thermoplastic resin; and clamping the fiber adhered with the thermoplastic resin with a glass slide, heating to melt the thermoplastic resin, and pressurizing the glass slide to obtain the fiber-thermoplastic resin film. The method provided by the invention not only can clearly observe the black cross extinction phenomenon of the thermoplastic resin crystal, but also can observe the fiber-induced thermoplastic resin crystallization effect, avoids the problem that the fiber-induced crystal is buried due to the too thick resin film, and has good repeatability.

The invention relates to a fixing method of a wall surface plate and a fixing device needed by the fixing method. The heat-preserving and decoration integrated swallow tail tenon and mortise fixing device is provided with fastening screws and a swallow tail pressing bar. A cross section of the swallow tail pressing bar is symmetrical leftwards and rightwards. A central axis of the swallow tail pressing bar is provided with multiple equidistant through holes. The fastening screws can be installed in the through holes. The cross section of the swallow tail pressing bar is a door-shape, a U-shape, an isosceles trapezoid, a half round or an isosceles triangle. A spacing distance between the through holes is 3-30 cm, and preferably 5-20 cm. An included angle Alpha between a pressing leg on theswallow tail pressing bar and the upper end face is 30-80 degrees, preferably 50-70 degrees, and more preferably 65 degrees. The pressing leg has elasticity. The tail end of the pressing leg is cut tobe flat or a semicircle oval shape. While the tail end of the pressing leg is cut to be flat, the tail end of the pressing leg is parallel to the upper end face of the swallow tail pressing bar. Theswallow tail pressing bar is thermoplastic plastic or metal.