134 results about "Polyester" patented technology

The invention relates to polyester conductive fibers and provides graphene conductive polyester fibers having good conductivity and lasting static resistance and a preparation method thereof. Through surface sulfonic acid group functionalization of graphene, graphene particles have sizes less than 1 micrometer and have good dispersibility, graphene, carbon nanotubes and a surfactant are stirred and mixed according to a mass ratio of 1-5: 1-5: 1-5: 1 and then are dispersed to form conducting particles, the conducting particles are added into polyester powder, the mixture is processed to form graphene superconducting masterbatches by a twin-screw granulation technology, and the graphene conductive polyester fibers are prepared by a spinning technology adopting a double-component composite spinning method or a single-component blending spinning method. The graphene conductive polyester fibers have the characteristics of simple production processes, low energy consumption, low labor and mass production feasibility.

The invention relates to a preparation method of novel cloudy-surface release paper, which comprises the following steps that: a film-coated layer is coated on one side surface of a base release paper, a cementing compound layer is coated on the other side surface of the base release paper after being cooled to obtain a substrate layer to standby use; a layer of cloudy-surface coating agent with the thickness of 0.2 micrometer to 2 micrometers is coated on the surface of a film layer; the cloudy-surface coating agent is radiated by ultraviolet rays to obtain a cloudy-surface coating, and then a layer of mold release agent is coated on the surface of the cloudy-surface coating to obtain a cloudy-surface release layer for standby use; and the cloudy-surface release layer is bonded with the substrate layer. Sine the polyester cloudy-surface coating is firstly coated on the surface of the film layer, a plurality of convex-concave structures are obtained on the surface of the film layer after being processed; and then the silicon release agent coating is coated on the surface of the cloudy-surface coating, the bottom surface of the silicon release agent coating at a liquid state penetrates into concaves on the surface of the polyester cloudy-surface coating and the silicon release agent coating is fixedly connected with the polyester cloudy-surface coating through the concaves after being solidified, so the bonding force is firmer and more reliable.

A flame retarded resin molding composition with weatherable properties comprises a polyester and polycarbonate blend modified with an organopolysiloxane polycarbonate and an acrylic impact modifier for enhancing weatherablity.

The invention relates to a solid-type filter stick formed by granular assembling and a preparation method of the solid-type filter stick. The filter stick is prepared by the assembling forming of solid granules and an adhesion agent, wherein the solid granules are one or more of natural plant granules, natural mineral granules and artificial adsorption granules. The adhesive agent is one or more of ethylene-vinyl acetate copolymer, polyethylene hot melt adhesive, epoxy resin, polyester, polyether, polyurethane, dextrin, polyvinyl alcohol, polycaprolactone, gelatin and Arabic gum. The mass ratio of the solid granules and the adhesive agent is 0.5-200:1. The filter stick is prepared by the bonding forming after the solid granules and the adhesive agent are mixed, is loosened, breathable and stable in structure, and can be used as a unitary filter tip or can be combined with other filtering materials to form a multi-component filter tip. The preparation method is simple in process and high in production stability. The filter stick is novel in appearance and structure, stable in structure, excellent in incision performance, wide in material selection range, good in filtering effect and capable of effectively improving the smoking quality of cigarettes.

The invention relates to fibers capable of heat storage and temperature adjustment. The fiber prepared by using the composite melt-spinning method comprises the following components by weight percent: 20% to 60% of polymer-type phase-change materials as a core component or an island component and 80% to 40% of fiber-forming polymers as a skin component or a sea component, wherein the polymer-type phase-change materials comprise the homopolymer or copolymer of alkyl acrylate, alkyl methacrylate and monoalkyl/dualalkyl itaconate or the copolymer of the homopolymer thereof, and is characterized in that the normal alkyl capable of carrying out the solid-liquid and liquid-solid phase transition and further achieving the effect of energy storage is fixed on the main chain of the polymer by the covalent bond; and the fiber-forming polymer comprises at least one selected from polyethylene, polypropylene, polyamide, co-polyamide, co-polyester and co-polyacrylonitrile. The weight loss of the fiber taking methylbenzene as solvent is not higher than 5% after being subjected to the treatment of a Soxhlet extractor for 2 hours.

The invention relates to the technical field of flexible circuit boards, in particular to a halogen-free resin composition. The halogen-free resin composition comprises, by weight, 40-60 parts of polyester-type polyurethane resin, 15-25 parts of polyfunctional epoxy resin, 10-20 parts of phosphorus-containing phenolic resin, 15-25 parts of phosphorus-containing flame retardant and a proper quantity of organic solvent. The polyester-type polyurethane resin contains carboxyl, the acid value is 35 KOHmg/g, and the number-average molecular weight is 10,000-50,000. The polyester-type polyurethane resin containing the carboxyl can be reacted with biphenyl type epoxy resin, and the biphenyl type epoxy resin can be reacted with the phosphorus-containing phenolic resin so that an interpenetrating polymer network structure can be formed. In this way, a cured product has excellent ionic migration resistance and has high flexibility and high heat resistance. The invention further relates to a cover film prepared from the halogen-free resin composition, the excellent ionic migration resistance is achieved, and dendritic crystals can be avoided during ionic migration resistance testing.

The present invention relates to a method for reducing adhesions associated with post-operative surgery. The present method comprises administering or affixing a polymeric composition preferably comprising chain extended, coupled or crosslinked polyester/poly(oxyalkylene) ABA triblocks or AB diblocks having favorable EO/LA ratios to a site in the body which has been subjected to trauma, e.g. by surgery, excision or inflammatory disease. In the present invention, the polymeric material provides a barrier to prevent or reduce the extent of adhesions forming.

The invention discloses a production process of a double-point non-woven fusible interlining, which sequentially comprises the following steps of: A) using 43 percent of nylon fibers and 57 percent of polyester fibers by mass as raw materials, laying the raw materials to form a net, heating and hot rolling through a hot mill to enable the nylon fibers and the polyester fibers to be bonded with each other to form a non-woven base fabric; B) softening the non-woven base fabric through silicone oil and conducting inspection; C) cropping after the non-woven base fabric is inspected to be qualified; D) conducting double-point coating fabric feeding after cropping, firstly using a circular screen for primer transfer and then spreading fusible adhesive powder on the primer; E) clearing the fusible adhesive powder which is not combined with the primer by adopting an air blowing and suction method; F) baking through a baking oven, wherein the baking temperature is 167 DEG C and the fabric feeding speed is 36m/min; G) cooling through cooling rolls, wherein deep-well water or tap water chilled by a water chiller is filled into the cooling rolls; and H) conducting final inspection to the cooled double-point non-woven fusible interlining, rolling and containing the double-point non-woven fusible interlining in a box. The production process of the double-point non-woven fusible interlining has the advantages that the production quality is improved, the production energy consumption is reduced, the production efficiency is improved and the production cost is reduced.

The invention relates to a metalized or ceramic-coated, biaxially oriented, sealable polyester film with at least one base layer (B), with a sealable outer layer (A), and with a further non-sealable outer layer (C). The sealable outer layer (A) has a minimum sealing temperature (fin) of not more than 110° C. and a seal seam strength (fin) of at least 1.3 N/15 mm of film width. The two outer layers (A) and (C) are characterized by particular features. The film of the invention is particularly suitable for use in flexible packaging, and particularly and specifically for use on systems which operate in a vacuum.

A process for preparing thermoplastic polyamide compositions that exhibit decreased melt flow and similar physical properties in comparison with conventional systems, in which polyamide is melt-blended with at least one organic acid, and, optionally, one or more additional components, such that the organic acid has a melting point that is no lower than about 10° C. less than the onset temperature of the melting point endotherm of the polyamide. The process results in decreased levels of corrosion and erosion of standard processing equipment in comparison with other processes for decreasing the melt flow while maintaining the physical properties of thermoplastic polyamide compositions. Articles of manufacture made according to the instant process and composition described therein are also disclosed.

A moisture barrier for a rigid insulating panel of a spa cover is a laminate bag of at least two layers. A first layer of polyethylene plastic film is bonded with at least a second and inner layer of metalized plastic film to form the laminate bag. A third layer of polyester is optionally provided and which is enveloped within second layer as an additional moisture barrier. The laminate bag has at least an open end which is adapted for receiving the panel and which is sealed. The sealed laminate bag can be evacuated for additional insulating characteristics.

The invention relates to a method for producing high-count yarns from vinylon and polyester fibers, and cotton by blending. Vinylon and polyester, and cotton fibers are selected. Vinylon and polyester fibers are blown, carded and pre-doubled, and then combined with cotton combed silvers on drawing, and cone yarns are produced through procedures of roving, spinning and spooling. Low speed, multi-combing and less-beating, large gauge, small-feeding and less-falling, weighing and pressurizing are adopted in a blowing procedure; large gauge, small noil, big ration, full transfer and proper combing are adopted in a cotton carding procedure; large gauge, big ration, low speed, first-pass pre-doubling and second-pass mixed drawing processes are adopted in the drawing procedure so that components are mixed uniformly; large gauge, big ration, heavy pressurizing, low speed and small twist are adopted in the roving procedure; moderate twist coefficient and low spindle speed processes are adopted in the spinning procedure. The vinylon is added in a polyester-cotton fabric, so that the polyester-cotton fabric has good moisture absorption and good gas permeability, is firm and durable, and resists acid and base, corrosion, moth damage and solarization; high-quality fine staple cotton is added in the polyester-cotton fabric, so that the polyester-cotton fabric is comfortable and soft to wear, keeps warm in wearing, and is suitable for making work clothes.

A polyester fiber which has physical properties such as a double refraction delta n of up to 0.07, an elongation after fracture of at least 80%, and a specific weight of at least 1.35 g/cm<3> and is suitable for a draw-texturing raw yarn, and which is produced by cooling polyester filaments melt-spun from spinnerets to up to a glass transition temperature by a cooling air while filaments are being taken up by a take-up roller at at least 3000 m/min, and by heating them to above a glass transition temperature while they are being wound up from the take-up roller into a package by a winding device.

The present invention relates to a soft and durable carrying case for transporting one or more fishing rods (typically a 2 piece rod) and reels that affords protection as well as buoyancy if dropped in the water. The inner foam material is specially made, and sewed into the nylon shell to aid in buoyancy and protecting the rods and reels from damage. The carrying case can also be used to transport other types if equipment that are a maximum of 43 inches in length. The present invention can be reconfigured into a seat cushion after taking out the rods and reels. Said seat cushion is designed in such a manner as to prevent pain to the tailbone. The dual usage capability of the present invention allows for the consumer to alleviate 2 problems (carrying a fishing rod and reel easily) and preventing pain to the tailbone when sitting down while fishing. Another feature of the present invention is a 3^rd or 4^th use whereby, the carrying case can be further reconfigured as a blanket or poncho. The case is made of nylon, polyester and foam construction or other suitable materials for cushioning and warming effect.

A series of amphiphilic polymer materials which take pulullan as a main chain and polyester as a branch chain are synthesized. By adopting a novel synthetic method, the synthetic time of the series of amphiphilic polymer materials is shortened to 5 minutes, so that the materials have a relatively high industrial value. The series of amphiphilic polymer materials have multi-aspect application values in the field of medicine transfer such as microsphere and nanoparticle reparations and the like as well as modification of other medicine transfer systems and the like. The series of amphiphilic polymer materials are used for preparing nanoparticles and microsphere conveying transfer medicine or modification medicine transfer carriers such as nanoparticles and microspheres so as to achieve the purpose of increasing the solubility and stability of medicines, improving the curative effect of the medicines and reducing the toxic and side effects of the medicines. The series of materials, which are used as the medicine transfer carriers or modification medicine transfer carriers, can be used for achieving the purpose of liver targeting delivery and temperature sensitive control released delivery at the same time.

The invention provides VCI powder zinc-rich paint for protecting the surface of a steel structure. The VCI powder zinc-rich paint is characterized by comprising, by weight, base material, filling, VCI (volatile corrosion inhibitor) and auxiliary, the base material comprises 20-50 parts of epoxy powder resin, 20-50 parts of polyester powder resin, 30-60 parts of sheet zinc powder, 5-10 parts of aluminum triphosphate and 5-10 parts of zinc phosphate, the auxiliary is one or multiple of flatting agent, electroconductive agent and degassing agent, a mass ratio of the base material to the filling is 3:1-3:7, mass of the VCI is 5-10 parts of total mass of the base material and the filling, and mass of the auxiliary is 2-10 parts of the total mass of the base material and the filling. The VCI powder zinc-rich paint has good shielding effect that powder paint has, has cathode protecting effect equivalent to common zinc-rich paint and has corrosion inhibiting effect that the VCI has, so that excellent protecting effect on metal base materials is realized.

The invention relates to an anti-dripping flame-retardant finishing method for high-tenacity polyester, which comprises the following steps: adding a compound flame retardant, an adhesive and an anti-dripping agent into a solvent at 100-160 DEG C, and stirring to obtain a flame-retardant solution; and adding polyester fabrics into the flame-retardant solution for soaking and rolling twice respectively, then pre-baking at 80-120 DEG C for 3-6min, baking at 140-180 DEG C for 2-4min, taking out, and cooling to obtain the high-tenacity polyester. The polyester fabrics finished by the finishing process provided by the invention have the characteristics of flame resistance, smoke suppression, high tenacity and anti-dripping capability so as to meet the high-tenacity requirement for polyester and have broad market prospects. The polyester fabrics obtained by the finishing method provided by the invention have the tenacity of 6.6-8.0cN/dtex, the limited oxygen index of 28-40% and the breaking elongation of 13-16%.

The invention relates to a formula of a full-dull master batch and a preparation method thereof. The formula comprises titanium dioxide, half-dull polyester powder and a flexible additive, wherein the weight percentage ratio of the titanium powder to the half-dull polyester powder is (30-50):(50-70); and the content of the additive is 400-800 ppm. In the method, the flexible additive is used, so that the titanium dioxide is uniformly dispersed into polyester, the polyester can still keep high rheological property, and a post-processing production condition can be up to requirements. The viscosity of the obtained titanium dioxide master batch is appropriate, so that a finished product has high physical-chemical performance.

The invention discloses a high-reflecting, heat-insulating and heat-preservation concrete gas-filled brick. The concrete gas-filled brick is characterized in that calcium carbide and sodium rosinate are used as composite air-entraining agents, a layer of a polyester coats the surface so that polyester-coated calcium carbide is obtained, hollow glass beads are subjected to cleaning oil removal, surface roughening and coupling to form surface-coupled glass beads, titanium dioxide and cerium oxide are deposited on the surfaces of the hollow glass beads through a hydrothermal method so that the modified hollow glass beads are obtained, the raw materials are mixed, the mixture is heated through steam to form a casting material, the casting material is poured into a mold, and the model is subjected to maintenance at the constant temperature and constant humidity, blank repair and steam maintenance at a high temperature so that the high-reflecting, heat-insulating and heat-preservation concrete gas-filled brick is obtained. A preparation method of the concrete gas-filled brick has simple processes and realizes a low cost. The concrete gas-filled brick has good strength, low thermal conductivity and good anti-cracking effects, saves energy, is environmentally friendly and satisfies the needs of the construction project and the requirements of environmental protection.

The invention relates to a method for dyeing a polyester fiber type material by using an oligomer removing agent. The method comprises the following step: adding the oligomer removing agent and a dyeing assistant into a dyeing bath together to dye the polyester fiber type material, wherein the formula of the oligomer removing agent comprises the following raw materials: 10-20 parts of dicarboxylic acid di(C1-C4) alkyl ester, 14-26 parts of aromatic di(C1-C4) carboxylic acid, 30-50 parts of aliphatic diol or aliphatic polyol, 10-20 parts of difunctional sulfonated monomer, 10-30 parts of polyether and 15-100 parts of polyoxyethylene sorbitan fatty acid ester. According to the method provided by the invention, by adding polyoxyethylene sorbitan fatty acid ester, good synergy is realized, the dispersion performance of a dyeing solution is enhanced, the adsorption of a condensed matter in the dyeing solution to the surface of fiber can be better inhibited, and the problems caused by a polyester oligomer in a dyeing process are further solved. Thus, the dyeing of fabric is uniform, the color fastness is improved, and the stability of a product is enhanced.