2810 results about "Polymer composition" patented technology

The invention provides a polymer additive and application thereof. The polymer additive is prepared from the following components in parts by mass: 30 to 90 parts of diethyl phosphinate, 0.01 to 3 parts of ethyl phosphonate, 5 to 67 parts of dialkyl phosphinate and 0.01 to 5.5 parts of alkyl phosphinate. The dialkyl phosphinate has a structure as shown in a formula I, and the alkyl phosphinate has a structure as shown in a formula II. According to the invention, through design and compounding synergy of various phosphonates, the flame-retardant effect can be obviously improved, so that the polymer additive has excellent and efficient flame retardance. The polymer additive is used in a polymer material, and a polymer composition containing the polymer additive can have excellent flame retardant property, good toughness, high impact strength and excellent mechanical property and humidity and heat resistance under the condition that the addition amount is small.

A method for producing a textile material, such as a shoe upper, including providing a shaping carrier, such as a last; providing a plasticizing unit for melting a polymer composition to provide a molten polymer composition; providing a depositing unit with a dosing head which includes at least one nozzle; applying the molten polymer composition via the at least one nozzle on the shaping carrier in a filament forming a plurality of loops on the shaping carrier. The depositing unit and / or the shaping carrier are in a first movement moved relative to each other such that the at least one nozzle moves along a drive path which runs on the shaping carrier. During forming each loop, the dosing head and / or the at least one nozzle is moved in a second movement along a loop depositing path with a path length such that the length of each loop formed on the carrier is larger than the path length of the depositing path.

An additively manufactured cushion includes an array of interconnected surface lattice unit cells. The surface lattice unit cells are comprised of a unit cell surface portion configured as a Schoen F-RD minimal surface unit cell, and the unit cell surface portion is comprised of a rigid, flexible, or elastic polymer. In some embodiments, the surface lattice unit cells have an average width of from 1 to 100 millimeters and an average volume fraction of from 5 or 10 percent to 50 or 60 percent.

The invention belongs to the technical field of flame retardant materials, and provides a polymer additive and a preparation method thereof, and a polymer composition, the polymer additive comprises the following components by mass: 95-99.88 parts of diethyl phosphinate, 0.1-3 parts of ethyl butyl phosphinate, 0.01-1 part of ethyl phosphonate, and 0.01-1 part of monoethyl phosphinate; the water-soluble acid value of the polymer additive is 0.1-0.3 mg KOH / g, and the polymer additive has low acidity, and when the polymer additive is used as a flame retardant for a polymer composition, the generation of high-temperature decomposition of dialkyl phosphinic acid can be slowed down, so that the polymer composition has lower water boiling precipitate content, the use stability of the polymer composition under damp and hot conditions is improved, the service life of the polymer composition is prolonged, and the service life of the polymer composition is prolonged. And moreover, the amount of mold scale generated in the injection molding process is smaller, the injection molding production efficiency can be improved, and the product appearance is improved.

The invention provides a polyolefin coated diaphragm with ion selectivity, a preparation method and application. The polyolefin coated diaphragm is composed of a porous polyolefin supporting layer, and a first ion selective skin layer and a second ion selective skin layer which are positioned on two surfaces of the porous polyolefin supporting layer, the first ion selective skin layer and the second ion selective skin layer are both composed of an intrinsic microporous polymer PIM or a modified intrinsic microporous polymer PIM; the PIM material has a high specific surface area, a rich microporous structure and good electrolyte affinity; therefore, the polyolefin coated diaphragm has good wettability and lithium ion permeability, the overall mechanical property and heat resistance of the diaphragm are effectively improved, and light weight is kept; meanwhile, the diffusion coefficient of the diaphragm to metal ions such as Mn, Ni and Fe is greatly reduced, the situation that in a lithium ion battery positive electrode material using an existing diaphragm, the metal ions such as Mn, Ni and Fe are dissolved out during battery operation and then pollute a negative electrode of the battery is effectively avoided, and the service life of the battery can be effectively prolonged.

The present disclosure relates to polymers synthesized from ionomers having an aromatic hydrocarbon-containing backbone and an amine-containing ionic or ionizable moiety with polystyrene. The linkage between the ionomer and the polystyrene is made through covalent bonds or linking moieties. Electrochemical cells having polymer electrolyte membranes composed of the combined polymers are also described.

The present application relates to a method of manufacturing a sole unit (1) having a midsole (2) and an outsole (3) being connected to the midsole (2). The method comprises providing a midsole (2) having a first surface (21) configured to face an upper (4), an opposite second surface (22) and a peripheral edge surface (23). The method further comprises melting a polymer composition at a first temperature to provide a molten polymer composition. The method further comprises applying the molten polymer composition on the second surface (22) of the midsole in the form of a filament (5) forming a plurality of loops (L1, L2, L3, L4, L5, L6) on the second surface (22), thereby forming an outsole (3). Further disclosed are a sole unit (1) comprising a midsole (2) and an outsole (3) produced by this method, and a shoe comprising the sole unit (1) and an upper (9).

A shoe, a shoe production system and a method for producing a shoe including the steps: a. providing an upper assembly (2), wherein the upper assembly includes an upper (3) being mounted on a carrier (4), wherein the upper (3) includes a bottom section (5) being made from a thermoplastic polymer upper material; b. providing a sole molding unit (6), wherein the sole molding unit defines a cavity; c. inserting the upper assembly (2) at least partially into the cavity; introducing a midsole polymer composition comprising a molten thermoplastic polymer midsole material which has a melting temperature being equal or higher than the melting temperature of the thermoplastic polymer upper material into the cavity and foaming the molten thermoplastic polymer midsole material inside the cavity to provide a foamed midsole and to establish a material-bonded connection between the upper (3) and the foamed midsole (8).

The present disclosure relates to a preparation method of a super absorbent polymer composition. More specifically, it relates to a preparation method of a super absorbent polymer composition capable of pulverizing the hydrogel polymer to a normal particle size without agglomeration between particles by adding an additive having a specific structure, and significantly reducing the amount of fine powder generated during the process.

The present disclosure relates to a preparation method of a super absorbent polymer composition. More specifically, it relates to a preparation method of a super absorbent polymer composition capable of pulverizing the hydrogel polymer to a normal particle size without agglomeration between particles by adding an additive having a specific structure, reducing manufacturing cost by simultaneously performing a drying process and a surface cross-linking process, and significantly reducing the amount of fine powder generated during the process.

Disclosed are polymers and polymer compositions comprising metalized polyphosphazene. Also disclosed are polymer electrolytes comprising the disclosed herein polymers and polymer compositions, and film separators comprising polymers and polymer compositions. Also disclosed are batteries comprising an anode, a cathode and polymer electrolytes. Disclosed are also methods of making polymers, polymer compositions, and batteries.

The invention discloses a polypropylene film for a film capacitor, the polypropylene film is composed of polypropylene and a cyclic olefin polymer, a plurality of gaps are distributed in the film, the gaps are approximately annular on the cross section of the film, and the inner diameter of the approximately annular gaps is 20-120nm. The invention also provides a preparation method of the polypropylene film, which comprises the following specific steps: putting the polypropylene and the cyclic olefin polymer into an extruder, heating and melting; the melt is extruded through a T-shaped die head and attached to a piece casting roller through an air knife for piece casting, and the temperature of the piece casting roller is 85-95 DEG C; the method comprises the following steps: preheating a cast sheet, longitudinally stretching at the stretching rate of 4-7 times and at the temperature of 135-150 DEG C, preheating the longitudinally stretched sheet at the temperature of 145-160 DEG C, transversely stretching at the stretching rate of 7-10 times and at the stretching temperature of 165-180 DEG C, and then entering a shaping area at the temperature of 168 DEG C; and carrying out corona treatment, rolling, curing and slitting on the heat-set film to obtain the product. The polypropylene film has good high temperature resistance and high pressure resistance, and is suitable for the field of capacitors.

The invention provides a coated diaphragm for a lithium ion battery, a preparation method of the coated diaphragm and the lithium ion battery. The coated diaphragm is composed of a porous polyolefin middle layer, and a first skin layer and a second skin layer which are positioned on two sides of the porous polyolefin middle layer, the first skin layer is composed of nanofibers and nano ceramic particles; the second skin layer is composed of an intrinsic microporous polymer (PIM) and / or a modified intrinsic microporous polymer; the first skin layer and the second skin layer are respectively arranged on the upper surface and the lower surface of the porous polyolefin middle layer to form a sandwich structure, the diffusion coefficient of the obtained coated diaphragm to nickel ions is 3.21 * 10 <-9 >-4.65 * 10 <-9 > cm < 2 > / s, and the diffusion coefficient of the obtained coated diaphragm to manganese ions is 5.75 * 10 <-10 >-6.88 * 10 <-10 > cm < 2 > / s; the mechanical property and the heat resistance of the diaphragm are improved, meanwhile, the permeability of the diaphragm to nickel and manganese ions is greatly reduced, the situation that metal ions such as nickel and manganese in an existing lithium ion battery positive electrode material are dissolved out to pollute a negative electrode of a battery during operation of the battery is effectively avoided, and the service life of the battery can be effectively prolonged.

The present invention relates to: electromobility components having a colour difference ΔE <20 between the L*a*b* coordinates and a colour number beginning with "2" of the RAL colour chart, containing polymer compositions on the basis of at least one polyester and a pigment having an average particle size d50, determined according to ISO 13320 by means of laser diffractometry, in the range of 1 to 12 µm, containing 9,9'-oxybis-12H-phthaloperin-12-one, 9,10-oxybis-12H-phthaloperin-12-one and 10,10'-oxybis-12H-phthaloperin-12-one in a ratio of 1:1:0.8-1.5 to 1:1.5:0.8-1.5. The invention also relates to the use of a pigment having an average particle size d50, determined according to ISO 13320, in the range of 1 to 12 µm, containing 9,9'-oxybis-12H-phthaloperin-12-one, 9,10-oxybis-12H-phthaloperin-12-one and 10,10'-oxybis-12H-phthaloperin-12-one in a ratio of 1:1:0.8-1.5 to 1:1.5:0.8-1.5 in polymer compositions for producing polyester-based electromobility components having a colour difference ΔE <20 between the L*a*b* coordinates and a colour number beginning with "2" of the RAL colour chart, in particular for reducing cross-colour effect in the production of polyester-based electromobility components.

The invention relates to a method for producing a polymer composition, in which a silane-modified polymer is polymerized by free-radical chain polymerization with an ethylenically unsaturated monomer and a further ethylenically unsaturated polymer having a free-radical photoinitiator group in a polyol or a prepolymer having terminal isocyanate groups, and to a polymer composition produced by this process. The invention also relates to a method for producing moisture-curable polyurethane hot melt adhesive compositions, 1K polyurethane adhesives and 2K polyurethane adhesives on the basis of the polymer composition according to the invention. The invention also relates to moisture curable polyurethane hot melt adhesive compositions, 1K polyurethane adhesives and 2K polyurethane adhesives produced by these methods.

The invention provides a patterned photonic crystal laser and a preparation method thereof, the laser comprises a substrate, and a first mask layer, a photonic crystal layer and a second mask layer which are sequentially deposited on the substrate, a light emitting area is etched in the central area of the second mask layer, and transparent conductive layers are deposited on the surface of the second mask layer and the light emitting area; a p-annular electrode is arranged on the surface of the transparent conductive layer on the second mask layer, and an n-annular electrode is arranged below the substrate; the photonic crystal layer is composed of a nanorod array and a polymer filled in gaps of nanorods; holes distributed in a patterned array are etched in the surface of the first mask layer, and nanorods are epitaxially grown in hole areas; the nanorod is formed by sequentially depositing a substrate contact layer, a first waveguide layer, a multi-quantum well layer, a second waveguide layer, a coating layer and a component gradient layer. According to the invention, through collaborative design optimization of all the layers, emission of laser with specific wavelength and preparation of a laser emitting laser with single longitudinal mode, narrow linewidth and stable wavelength are realized.

A polymer composition for carbon dioxide gas separation, the polymer composition comprising a polymer and a plurality of supramolecular structures, wherein the supramolecular structures are configured to selectively and reversibly adsorb carbon dioxide.

A linerless wash-off label (100) comprising a paper-based face (101, 201) and pressure sensitive adhesive (102) is provided. The paper-based face (101, 201) comprises a base paper (206) and a release layer (203), and the release layer (203) and the pressure sensitive adhesive (102) are arranged on opposite sides of the base paper (206). The pressure sensitive adhesive (102) comprises a water-based acrylic emulsion polymer composition, the pressure sensitive adhesive (102) is sensitive to washing conditions, and the base paper (206) comprises wet strength resin and has water absorptiveness of from 10 to 30 g / m2 when measured according to an ISO standard 535 (contact time 60 s). Further, a label product roll comprising the linerless wash-off labels (100) as well as a labelled item comprising an item and a linerless wash-off (100) label are provided. Still further, use of the linerless wash-off label (100) and method of manufacturing a linerless wash-off label web for providing the linerless label product roll are provided.

The present disclosure provides methods for depositing a therapeutic agent onto analyte sensors (e.g., to reduce signal inaccuracies or in vivo sensor failure, e.g., due to foreign body response (FBR)). In certain embodiments, the present disclosure relates to a process for coating (e.g., dip coating) analyte sensors with therapeutic agent-containing polymer compositions to obtain analyte sensors that include a therapeutic agent. The present disclosure further relates to sharps coated with a therapeutic agent.

The present disclosure provides micelles comprising a plurality of block co-polymers, the micelle comprising (i) a core comprising at least a portion of a poly(alkyl acrylate) block of one or more of the block co-polymers; and (ii) an outer layer comprising at least a portion of a poly(aryl acrylate) block or a poly(aryl methacrylate) block of one or more of the block co-polymers. The present disclosure also includes polymer compositions, polymer films, and devices (e.g., orthodontic equipment) including the same. Methods for making and using micelles, polymer compositions, polymer films, and devices (e.g., orthodontic equipment) are also disclosed. Further provided herein are methods of producing polymer compositions and using the same for the fabrication (e.g., via 3D printing) of medical devices, such as orthodontic appliances.

The preparation method comprises the following steps: fully mixing a good solvent and a poor solvent of a polymer, adding a film-forming polymer while stirring at room temperature, fully dissolving to form a homogeneous solution, and then coating or spinning the homogeneous solution to form a primary membrane; immersing the primary membrane into a coagulating bath of which the temperature is higher than the low critical solution temperature of the homogeneous solution for phase separation; according to the invention, heat transfer is adopted as driving force, so that a polymer composition change route rapidly passes through a bisection line area, and spiral section line phase splitting is carried out, so that a complex mass transfer rate regulation process is avoided. And meanwhile, by utilizing the characteristic of low critical solution temperature of a polymer system, the inconvenience conditions of high-temperature operation environment, extraction agent recovery and the like in a thermally induced phase separation process are overcome.

According to one aspect of the invention, there is provided a pressure relief valve comprising a body (1) configured to be fastened to a flexible packaging material. The body has at least one through-hole (14) forming a passage through the body; the valve diaphragm (2) rests from the packaging side to the body in a region located around the bore (14); and a sealing liquid located between the main body (1) and the valve diaphragm (2). The valve comprises a water-soluble polymer, which means that at least one component of the valve, such as the body (1), is made of a polymer composition comprising a water-soluble polymer.

Polymer compositions are disclosed containing at least one high molecular weight polyethylene polymer for producing gel extruded articles. In one embodiment, porous membranes are produced that have an excellent balance of properties including high porosity and high strength characteristics. In one aspect, very thin membranes can be formed having high strength characteristics.

Electromobility components with a color difference ΔE <20 from the L*a*b* coordinates to a color number beginning with “2” of the RAL color chart, containing polymer compositions based on at least one polyester and a colorant with a mean particle size d50 to be determined according to ISO 13320 by laser diffractometry in the range of 1 to 12 µm, containing 9,9'-oxybis-12H-phthaloperin-12-one, 9,10-oxybis-12H-phthaloperin-12-one and 10,10'-oxybis-12H-phthaloperin-12-one in the ratio of 1 : 1 : 0.8 -1.5 to 1 : 1.5 : 0.8 - 1.5, wherein the polymer compositions contain 0.01 to 5 mass parts of colorant per 100 mass parts polyester.

In one aspect, the disclosure relates to a flame retardant composition comprising a brominated polystyrene reacted with a first portion of a second polymer, and optionally at least a second portion of the second polymer that is not premixed with the brominated polystyrene alone. In some aspects, the first portion and the second portion of the second polymer can be selected from the group consisting of polyamides, polyolefins, polyesters, styrenic polymers or copolymers, or any combination thereof. In any of these aspects, the flame retardant compositions of the present disclosure are sufficiently mixed and have excellent properties, and can optionally include crosslinking to increase mechanical strength. Also disclosed herein are methods for preparing the compositions and articles of manufacture comprising the compositions.

The invention belongs to the technical field of high-dielectric composite materials, and provides a terahertz-band high-dielectric low-loss composite material and a preparation method thereof.The composite material comprises a first composite master batch material; the raw materials of the first composite master batch material comprise a modified first filler, a modified first insulating material and a non-polar polymer; a second composite master batch material; the raw materials of the second composite master batch material comprise a modified second filler, a modified second insulating material and a non-polar polymer; and a non-polar polymer matrix; wherein the surface of the modified first filler is grafted with a polystyrene monomer; the surface of the modified second filler is grafted with an epoxy functional group; grafting a silica group and an amino group on the surface of the modified first insulating material; the surface of the modified second insulating material is grafted with an epoxy functional group and an amino group; by adopting the multi-particle-size modified high-dielectric-constant filler and combining with the modified insulating filler, the problem that an existing terahertz-band high-dielectric composite material is difficult to have low loss at the same time can be solved.

The present invention relates to a polypropylene composition comprising a high isotactic homopolymer of propylene in a content from 70 to less than 95 wt.-%, a cyclic olefin polymer composition in a content from 5 to less than 30 wt.-%, and a nucleating agent in a content from 0.0000001 to 1 wt.-%. The present invention is, furthermore, directed to a cast film comprising the polypropylene composition and a biaxially oriented film comprising the polypropylene composition. Apart from that, a capacitor comprising the biaxially oriented film is provided.

Provided are the preparation and use of a hydrogel. The hydrogel is composed of two polymers A and B, wherein the main chains of the two polymers A and B are composed of amide bonds formed by means of the polycondensation of lysine and glutamic acid, and the value of n is 8-100; and the two polymers A and B are each a polymer having any branching generation. The structural formulae of the two polymers A and B are respectively represented by formulae (a) and (b): each Ra on the main chains of the two polymers A and B is selected from a structure as represented by formula (c) or (d), wherein in the formulae, Ra1 is an exogenous functional molecule connected to the tail ends of alkynyl groups on the main chains of the two polymers A and B; Rb is a branched structure at the tail ends of amino groups in side chains on the skeletons of the two polymers A and B; Rc is a monosaccharide or oligosaccharide connected to the tail end of Rb of the polymer A; and Rd is any phenylboronic acid structure compound connected to the tail end of Rb of the polymer B. The hydrogel has a relatively good biological safety and can be used in the preparation of medical preparations, etc.

The invention relates to the technical field of hydrogen storage materials, and discloses a polymer-doped aluminum hydride hydrogen storage material and a preparation method thereof, comprising a composite hydrogen storage material, wherein the composite hydrogen storage material is composed of a light metal hydride and a polymer, wherein the light metal hydride comprises at least one of LiH, MgH2 or AlH3, and the polymer comprises at least one of PMMA, ABS or PVP, wherein the mass ratio of the light metal hydride to the polymer is 1:0.1-100, and the composite hydrogen storage material is composed of AlH3 and PMMA, and the composition expression of the composite hydrogen storage material is AlH 3 + x wt.%PMMA, where x represents the mass fraction of PMMA in the composite hydrogen storage material, and 1

Recycling wind turbine blades includes shredding, crushing, and milling the wind turbine blades to yield a multiplicity of particles including glass fiber and sieving the particles to yield a multiplicity of pellets including glass fibers. Manufacturing a composite coaxial fiber includes providing a first, second, and third polymer composition to yield a composite coaxial fiber precursor, processing the composite coaxial fiber precursor to yield a coagulated composite coaxial fiber precursor, drawing the coagulated composite coaxial fiber precursor, and heating the drawn coagulated composite coaxial fiber precursor to yield the composite coaxial fiber. The second polymer composition can include the recycled glass fibers. The resulting composite coaxial fiber includes an inner and outer layer including polyacrylonitrile and a middle layer between the inner layer and the outer layer. The middle layer includes polyacrylonitrile and a multiplicity of the recycled glass fibers.