Abstract:
Cylindrical base bodies for photosensitive drums according to first to fifth inventions are each formed by using a conductive resin composition containing a resin base material and a conductive agent dispersed in the resin base material. The base body of the first invention is characterized in that a dimensional accuracy is enhanced by using a mixture of a polyamide and a low water absorption resin as the conductive resin composition. The base body of the second invention is characterized in that a uniform and stable conductivity is obtained by using carbon black having a specific DBP oil absorption amount as the conductive agent. The base bodies of the third and fourth inventions are characterized in that a surface smoothness and a strength are enhanced by using a micro-spherical material or a flaked shape material, or a fibrous inorganic material having a specific fiber length and a specific fiber diameter as an inorganic filler for reinforcement added to the conductive resin composition. The base body of the fifth invention is characterized in that occurrence of charging noise is suppressed by using a composition having a specific tan null as the conductive resin composition.
Abstract:
A device and method for making medical balloons such as for angioplasty. The device has fibers that may be of different materials, shapes, sizes, and directions, with the interstitium filled by a polymer materials to render it waterproof and able to be pressurized. The device exhibits improved strength and flexibility. Preferably, the device is steerable, radiopaque, and can operate at very high inflation pressures in order to facilitate low impedance angioplasty.
Abstract:
The invention relates to a multilayer tank or tubing made of a thermoplastic, comprising at least one layer comprising a barrier resin, adjacent to at least one layer consisting of a blend comprising at least one polyolefin and at least one functionalized polyolefin, and the said functionalized polyolefin of which comprises functional monomeric units chosen from carboxylic acids, dicarboxylic acids and the anhydrides corresponding to the said dicarboxylic acids.
Abstract:
Sterilizible composite film for manufacturing pouch type forms of packaging and the like for e.g. liquid, pasty or solid foodstuffs. The sterilizible composite films according to the present invention contain a barrier layer that is impermeable to water vapor and gases and is in the form of a metal foil. On both sides of the barrier layer is at least one functional layer. The following layers are arranged on top of each other in the composite film: a) a first functional layer containing a plastic film of the polyester or polyolefin type or an extrusion layer of polyolefins or one or more print and lacquer layers or print layers and b) a metal foil and c) a second functional layer in the form of a plastic film of co-extruded polyamide/polypropylene type.
Abstract:
A method and container for reducing fuming of asphalt in a heated vessel, including placing asphalt in a heated vessel to heat the asphalt to a molten state, adding a blanket material to the asphalt, the blanket material being substantially insoluble in the molten asphalt to form a skim thereon to reduce fuming therefrom.
Abstract:
A corrugated fuel tube is manufactured by extruding an inner single layer or multilayer of a resin of high fuel impermeability, extruding an outer single layer or multilayer of a thermoplastic resin so as to cover the inner layer to form a tube having a multi-layered wall, and corrugating the tube along at least a part thereof. The surface treatment is preferably given to an outer peripheral surface of the inner layer to ensure an improved adhesion between the inner and outer layers. The tube can be made without presenting any problem caused by a difference in melt viscosity between the materials forming its inner and outer layers.
Abstract:
The present invention provides a flowable material container closure assembly having a port tube and a membrane tube. The port tube (I) has a first layer and a second layer, (A) the first layer is a polymer blend of: (1) from about 25% to about 50% by weight of the first layer a first polyolefin selected from the group consisting of polypropylene and polypropylene copolymers, (2) from about 0 to about 50% by weight of the first layer a second polyolefin selected from the group consisting of ethylene copolymers, ultra-low density polyethylene, polybutene, and butene ethylene copolymers; (3) from about 0% to about 40% by weight of the first layer a radio frequency susceptible polymer selected from the group consisting of polyamides, ethylene acrylic acid copolymers, ethylene methacrylic acid copolymers, polyimides, polyurethanes, polyesters, polyureas, ethylene vinyl acetate copolymers with a vinyl acetate comonomer content from 12%-50% by weight of the copolymer, ethylene methyl acrylate copolymers with methyl acrylate comonomer content from 12%-40% by weight of the copolymer, ethylene vinyl alcohol with vinyl alcohol comonomer content from 12%-70% by mole percent of the copolymer; (4) from about 0% to about 40% of a first thermoplastic elastomer; and (B) the second layer is disposed coaxially within the first layer and is a second thermoplastic elastomer; and the (II) membrane tube is disposed coaxially within the port tube, the membrane tube has an outer layer, a core layer and an inner layer, the outer layer (A) is a polymer blend of: (1) from about 0% to about 60% by weight of the outer layer of a third polyolefin and (2) from about 40% to about 100% by weight of the outer layer of a second component of a third thermoplastic elastomer, the core layer (B) is attached to the outer layer, the core layer is a polymer blend of: (1) from about 35% to about 100% by weight of the core layer of a fourth thermoplastic elastomer and (2) from about 0% to about 65% by weight of the core layer of a fourth polyolefin; and (C) the inner layer is attached to the core layer on a side opposite of the outer layer, the inner layer is a polymer blend of: (1) from about 25% to about 55% by weight of the inner layer a fifth polyolefin, (2) from about 0 to about 50% by weight of the inner layer a sixth polyolefin selected from the group consisting of ethylene copolymers, ultra-low density polyethylene, polybutene, polybutadiene and butene ethylene copolymers; (3) from about 0% to about 60% by weight of the inner layer a radio frequency susceptible polymer selected from the group consisting of polyamides, ethylene acrylic acid copolymers, ethylene methacrylic acid copolymers, polyimides, polyurethanes, polyesters, polyureas, ethylene vinyl acetate copolymers with a vinyl acetate comonomer content from 12%-50% by weight of the copolymer, ethylene methyl acrylate copolymers with methyl acrylate comonomer content from 12%-40% by weight of the copolymer, ethylene vinyl alcohol with vinyl alcohol comonomer content from 12%-70% by mole percent of the copolymer; (4) from about 0% to about 40% by weight of the inner layer of a fifth thermoplastic elastomer.
Abstract:
A molded pulp fruit tray. The molded pulp fruit tray contains carbon black pigment and is substantially uniformly black in color due to the presence of the pigment. The carbon black pigment may be added to a molded pulp furnish as an aqueous dispersion.
Abstract:
A multilayer pipe is composed of at least three layers, wherein at least two of the layers are based on thermoplastic polyester, one layer is harder than the other layers, at least one of the other layers contains a thermoplastic polyesterelastomer. For preventing brittling of the material of the multilayer pipe, the radially innermost contains at least one of the materials polyolefin, polyolefin copolymer, polyolefin terpolymer, grafted polyolefin and polyamid, and at least one of the layers is modified against thermal aging.
Abstract:
An axially extending tubular composite member having a plurality of plies and extending along a longitudinal axis has at least three plies with selectively structured fiber components in each ply and an internal impact resistant beam having a C-shaped or U-shaped cross section positioned between two of the plies. Typically an inner ply has at least one biaxial fiber component, an intermediate ply has at least an axial fiber component that typically is combined with two further fibers to form a triaxial fiber component. Another ply typically has a woven fiber component. A further ply having a biaxial component either replaces the ply of woven fiber or is disposed beneath it over the intermediate ply. A surface veil having fiber and an excess of resin material typically covers at least the innermost or outermost surface of the composite member. The impact resistant member is constructed from an impact resistant material such as ABS plastic, and is typically positioned between the intermediate ply and the exterior ply.