97 results about "Polyphenylsulfone" patented technology

A polymer comprising sulfone groups, ketone groups and optionally substituted polyarylene groups, wherein the number of moles of sulfone groups over the number of moles of ketone groups ratio is greater than 1. A process for making such polymer, a composition comprising such polymer, and articles made therefrom.

A composition includes a crosslinked product of a polyphenylene sulfide and a polyphenylsulfone. A method for the manufacture of the crosslinked product of a polyphenylene sulfide and a polyphenylsulfone includes heating the polyphenylene sulfide and the polyphenylsulfone in presence of a crosslinking agent at a temperature and for a time effective to form the crosslinked product of polyphenylene sulfide and polyphenylsulfone.

An optical encoder whose environmental resistance is improved by increasing the variety of options of materials for a resin-made code plate thereof. Used as material for at least a code pattern of the code plate of the optical encoder is one which meets the condition that the material has spectral transmittance of 70% or more with respect to detection light and that of 50% or less with respect to partial light (for example blue light) of visible wavelengths in translucent sections. If infrared light having wavelengths between 800 nm and 1000 nm is used as detection light, it is preferable to apply polyetherimide, polyethersulfone or polyphenylsulfone as a colored resin material. These materials are excellent in heat resistance, oil resistance, etc., compared to transparent and colorless materials (PMMA, PC, glass, etc.) which have been conventionally used, and hardly cause melting, deformation, white turbidity, etc., in a harsh environment.

A three-dimensional object created by Fused Deposition Modeling (FDM) of a modeling material from polyaryletherketones (PAEK), polyphenylsulfides, polyamide-imide, polyethersulfon, polyetherimide, polysulfon, polyphenylsulfon, polycarbonates (PC), polyacrylonitrile butadiene styrene) (ABS), polymethylmethacrylate (PMMA), polyethyleneterephtalate (PET), polystryrene (PS), acrylonitrilstyrene acrylate, polypropylene (PP), polylactic acid (PLA), polyvinylalcohol (PVA), polyethylene (PE), polyoxymethylene, polyurethane (PU), copolymers of polyvinylalcohol and butenediolvinylalcohol and mixtures thereof, optionally filled with inorganic or organic fillers, wherein the object has a porosity of less than 5 vol %, as determined according to the porosity test procedure ‘Porosity test’. The objects are leak tight and show improved mechanical properties. FDM printing of PEEK generating parts having high isotropy.

Polymer composition (C) comprisinga poly(aryl ether ketone) (P1) chosen from polyetheretherketones, polyetherketoneketones and polyetheretherketone-polyetherketoneketone copolymers,a polyphenylsulfone (P2), anda reinforcing fiber (F),with the exception ofa polymer composition consisting of90 wt %, based on the total weight of the polymer composition, of a polymer blend consisting of 85 parts by weight of a polyphenylsulfone and 15 parts by weight of a polyetheretherketone, and10 wt %, based on the total weight of the polymer composition, of glass fiber.

Blends of a polyphenylene sulfone (PPSU); a polyphenylene sulfide (PPS); and, a polyetherimide and epoxy. The polyetherimide and epoxy are present in an amount effective to act as a compatibilizer for the polyphenylene sulfone (PPSU) and polyphenylene sulfide (PPS). Methods of compatibilizing a blend of polyphenylene sulfone (PPSU) and polyphenylene sulfide (PPS). The method can include melt mixing a polyphenylene sulfone (PPSU) and a polyetherimide; and melt mixing a polyphenylene sulfide (PPS) and an epoxy.

Aspects of a magazine for use with a repeating firearm are described. One unique aspect is that the magazine is fabricated completely from a translucent polymer, particularly a polyphenylsulfone (PPSU) and, preferably, an unreinforced PPSU that is highly resistant to mechanical, chemical, and thermal failures commonly affecting magazines. Another aspect of the magazine is the inclusion of a coupling system fully integrated into the housing that allows magazines to be securely joined together without the use of tools or additional components. A further aspect of the magazine is the easy release button design allowing the magazine to be disassembled by large or gloved fingers without need for a tool to depress the release button.

The invention relates to a fabric with a good antibacterial property for curtains. The fabric comprises a first shell fabric layer, a second shell fabric layer, a third fabric layer and a fourth fabric layer which are arranged from top to bottom; the first shell fabric layer is woven by blending polyester fibers and polyphenylsulfone amide fibers; the second fabric layer is woven by blending polyimide fibers and vinylon fibers; the third fabric layer is woven by blending polyaniline conductive polyester fibers and polypropylene fibers; and the fourth fabric layer is woven by blending apocynumvenetum fibers and banana stem fibers. The polyester fibers in the first fabric layer are antibacterial polyester fibers, and the forming process of the antibacterial polyester fibers is as follows: first preparing an antibacterial agent I and an antibacterial agent II, carrying out mixing for forming an antibacterial agent mixture, then blending pure polyethylene terephthalate (PET) sections withthe antibacterial agent mixture for preparing antibacterial modified PET sections, and then obtaining the antibacterial polyester fibers through a melt spinning mode, wherein the antibacterial polyester fibers comprise the following components in percentage by weight: 0.5-0.7 wt% of the antibacterial agent I, 0.9-1.1 wt% of the antibacterial agent II, and the balance of polyester fibers.

The invention relates to the technical field of nanofiltration membranes, and particularly discloses a nanofiltration membrane for extracting lithium from a salt lake and a preparation method of the nanofiltration membrane. The nanofiltration membrane comprises a bottom membrane and a polyamide layer formed on the bottom membrane, the bottom membrane is modified polyphenyl sulfone, the modified polyphenyl sulfone is prepared by modifying polyphenyl sulfone with chlorosulfonic acid, and nano-zinc oxide is contained in the polyamide layer and on the surface of the polyamide layer; the preparation method comprises the following steps: adding polyamine into water, uniformly mixing, adding nano zinc oxide, and uniformly mixing to obtain a water-phase solution; uniformly mixing polyacyl chloride and an organic solution to obtain an oil phase solution; and immersing the base membrane into the water phase solution for 2-8 minutes, taking out the base membrane, removing excess water on the surface, immersing the base membrane into the oil phase solution for 0.5-2 minutes, taking out the base membrane, removing excess oil on the surface, and carrying out heat treatment to obtain the nanofiltration membrane. The nanofiltration membrane for extracting lithium from the salt lake has the advantage of improving the separation effect on lithium ions through the synergistic effect of the raw materials.

A hollow-fiber membrane produced by this manufacturing method has high water permeability, and, when used as a humidification film, provides a linear relation between supplied humidity and humidification level, and thus can effectively serve such uses as a humidification film for a fuel cell. This polyphenyl sulfone hollow-fiber membrane manufacturing method is not only capable of providing a humidification film in which segregation and crosslinking of hydrophilic macromolecules associated with the operation of the humidification film is suppressed, and in which deterioration in humidificationperformance due to the operation thereof is suppressed, but also capable of producing a polyphenyl sulfone hollow-fiber membrane which is for use in a humidification film, which exhibits high water permeability, and which, when used as a crosslinked humidification film, provides a linear relation between supply humidity and humidification level.

A foam material having one glass transition temperature (Tg) and made from an immiscible composition having at least two glass transition temperatures (Tg) by an extrusion process wherein said composition (C) comprises at least one polyarylene (P1) polymer, wherein more than 50 % by moles (moles %) of the recurring units of said (P1) polymer are recurring units (R1) consisting of an arylene group, wherein said arylene group is a hydrocarbon divalent group consisting of one core composed of one benzene ring or of a plurality of benzene rings fused together by sharing two or more neighboring ring carbon atoms, said benzene ring being optionally substituted, wherein each of said arylene group is bound to two other arylene groups of neighboring recurring units (R1) through a first C-C bond (E1) and a second C-C bond (E2), wherein at least 20 moles % of recurring units (R1) are kink- forming arylene units (R1-b), the remainder being rigid rod- forming arylene units (R1-a) different from aryleneR1_b units, wherein in said aryleneR1_a units the bond (E1) and the bond (E2) are co-linear and anti- parallel towards each other, said (P1) polymer being present in composition (C) in an amount of below 75 % by weight (wt. %) and above 10 wt. % based on the total wt. % of (P1) polymer and (PPSU) polymer, and (ii) at least one polyphenylsulfone polymer, said (PPSU) polymer being present in composition (C) in an amount of below 90 wt. % and above 25 wt. % of based on the total wt. % of polyarylene (P4) polymer and (PPSU) polymer.

The invention belongs to the technical field of polymer impurity removal, and provides a polymer purification process and a purification system. The purification process comprises the following steps: firstly, adding a polymerization solution containing salt impurities into an eluate, to obtain polymer particles; extruding the polymer particles obtained in the step one under the condition of spraying the eluate, and removing the salt impurities in the polymer to obtain a cleaned polymer; dissolving the salt impurities in the eluate; and finally, removing the eluate from the cleaned polymer obtained in the step two to obtain the purified polymer. The liquid content of extruded polymer particles is low, cross contamination between the eluate and washing solutions is reduced, and the treatment cost, solvent loss and waste water and waste liquid discharge of various washing solutions are greatly reduced. The process can be applied to the production process of polysulfone, polyphenylsulfone, polyethersulfone and copolymers thereof, the production process of polyphenylene sulfide and copolymers thereof, and the production process of polyether-ether-ketone, polyarylene ether nitrile and copolymers thereof.

A process including shearing a first dispersion medium and a second dispersion medium under conditions that precipitate a plurality of polymeric fibers; and collecting the plurality of polymeric fibers at a rate of at least 300 grams / hour. The first dispersion medium is a solution including at least one polymeric component. The at least one polymeric component includes a poly-etherimide component selected from the group consisting of polyetherimide homopolymers, polyetherimide co-polymers, poly etherether ketones homopolymers, polyetherether ketones copolymers, polyphenylene sulfones homopolymers, polyphenylene sulfones copolymers, and combinations thereof. Products produced by the process can be non-woven paper, medical implants, ultra-fine filters, membranes, hospital gowns, electrical insulation paper, honeycomb structures and personal hygiene products, dialyzers, blood, oxygenator filters, intravenous (IV) filters, diagnostic test filters, and blood / apheresis filters.

Disclosed are high-performance thermoplastic materials used in building a three-dimensional model and its supports, by fused deposition modeling techniques. A modeling material used to build a model (26) is comprised of a thermoplastic resin having a heat deflection temperature of greater than 120 DEG C. An amorphous thermoplastic resin which self-laminates, bonds weakly to the modeling material,has a heat deflection temperature similar to the heat deflection temperature of the modeling material, and has a tensile strength of between 34 MPa [5000 psi] and 83 MPa [12,000 psi] comprises a support material used to build a support structure (28). In a preferred embodiment the thermoplastic resin comprising the support material is selected from the group consisting of a polyphenylene ether and polyolefin blend, a polyphenylsulfone and amorphous polyamide blend and a bolyphenysulfone, polysulfone and amorphous polyamide blend.