61 results about "Polyfuran" patented technology

A conductive polymer solution includes one doped conjugated polymer and one organic solvent. The doped conjugated polymer has electrical conductivity, and is selected from the group consisting of polyacetylenes, polypyrroles, polyparaphenylenes, polythiophenes, polyfurans, poly(3,4-ethylenedioxythiophenes), poly(3,4-propylenedioxythiophenes) (PProDOT), polythianaphthenes, polyanilines, and their copolymers, derivatives and combinations. The organic solvent is selected from the group consisting of a fluorinated organic solvent, mixture solvents containing fluorinated organic solvents, and mixture solvents containing fluorinated and non-fluorinated organic solvents. The organic solvent is mixed with the doped conjugated polymer. A preparation method of the conductive polymer solution is also disclosed.

The invention relates to a multilayer packaging film comprising at least three different types of layers (A), (B), and (C): (A) is at least one outer layer, (B) is at least one passive oxygen barrierlayer, (C) is at least one active oxygen scavenging layer, characterized in that - the at least one outer layer (A) is a thermoplastic polymer; - the at least one passive oxygen barrier layer (B) is selected from the group consisting of ethylene vinyl alcohol copolymers, polyvinylchloride, copolymers of polyvinyl chloride, polyvinyl alcohol, polyvinylidene dichloride, copolymers of polyvinylidenedichloride, polyacrylonitrils, copolymers of polyacrylonitrils, polyethylene terephthalate, polyethylene naphthalate, polyethylenefuranoate, polysiloxanes, and polyamides; - the at least one active oxygen scavenging layer (C) comprises a) a plastic material which is a polyolefin, a polyolefin copolymer or a polystyrene, and additives (b) and (c), wherein b) is a polyterpenic resin; and c) is a transition metal catalyst.

A furan can for containing a product includes a sealed container that contains the product and includes a furan resin selected from the group consisting of: poly (ethylene 2, 5-furan dicarboxylate) (PEF), poly (butylene 2, 5-furan dicarboxylate) (PBF), poly (trim ethylene furan dicarboxylate) (PTF), poly (propylene 2, 5-furandicarboxylate) (PPF), and poly (neopentyl 2, 5-furandicarboxylate) (PNF); and a release mechanism to open the container and access the product. The can may further include a generally cylindrical shell molded to have a sealed bottom and a straight wall that includes the furan resin; and a cap to seal the shell, the cap having the release mechanism and a rim that includes the furan resin; wherein the rim of the cap is bonded to the wall of the shell to releasably seal the product inside the can.

The invention discloses polyester with high glass-transition temperature and low melting point, a polyester product, and preparation methods and applications of the polyester and the polyester product. The preparation method comprises the following steps: copolymerizing bis (hydroxyethoxy) polycyclic aromatic hydrocarbon, first dibasic acid or ester thereof, second dibasic acid or ester thereof and dihydric alcohol to prepare bio-based polyester with high glass-transition temperature and low melting point, wherein the first dibasic acid is furandicarboxylic acid. According to the invention, the dihydroxyethyl polycyclic aromatic hydrocarbon with excellent rigidity and hydroxyl-terminated high activity and the bio-based polyfurandicarboxylate compound are copolymerized, and rigid alicyclicdiol is introduced to further improve the heat resistance of the copolyester, so the finally obtained polyester has excellent heat resistance and processing fluidity at the same time; the glass-transition temperature is 95-160 DEG C, the melt viscosity within the temperature range of 240-260 DEG C is lower than 1,000Pa.S, and the device can be widely applied to stirring cups of wall-breaking foodprocessers, portable juice makers, noodle makers and other equipment, juicing barrels of juice makers, feeding bottle cup bodies and other products.

The invention provides a poly(2,5-ethylene glycol furandicarboxylate) / polyadipic acid-polybutylene terephthalate composite material and a preparation method of same, and belongs to the field of composite materials, wherein the composite material includes, by weight, 100 parts of poly(2,5-ethylene glycol furandicarboxylate), 0.01-99.99 parts of polyadipic acid-polybutylene terephthalate, and 0.01-60.00 parts of an additive, which is prepared by modifying a supporter with a silane coupling agent of which a terminal has an isocyanate radical and successively grafting the supporter with poly(2,5-ethylene glycol furandicarboxylate) and polyadipic acid-polybutylene terephthalate. The invention also provides the preparation method of the poly(2,5-ethylene glycol furandicarboxylate) / polyadipic acid-polybutylene terephthalate composite material. The composite material has excellent toughness and high anti-impact strength.

The invention relates to modified poly(ethylene furandicarboxylate). The modified poly(ethylene furandicarboxylate) is prepared from the following components in parts by weight: 88 to 96.6 parts of poly(ethylene furandicarboxylate), 3 to 10 parts of poly(butylene succinate), 0.3 to 1 part of chain extender and 0.1 to 1 part of antioxidant. The modified poly(ethylene furandicarboxylate) disclosed by the invention has the characteristics of high strength, high rigidity, good toughness and the like, and keeps excellent gas barrier property. The preparation method of the modified poly(ethylene furandicarboxylate) is simple, and the modified poly(ethylene furandicarboxylate) can be applied to the field of plastic packaging materials with high requirements on gas barrier property.

The invention relates to compositions, molding materials producible from the compositions, and to articles of manufacture in turn based on the molding materials, wherein the compositions comprise polyalkylene terephthalate or polyalkylene furanoate, at least one filler or reinforcer, and at least one secondary alkanesulfonate having two alkyl radicals.

The invention discloses a graphene composite cable material and a method for preparing the same. The graphene composite cable material is made of polyimide emulsion, modified montmorillonite, high-density polyethylene, polyfuran dioctyl phthalate glycol ester, silane coupling agents KH-550, sulfur powder, titanium diboride, glass fibers, citrate, graphene, choline alfoscerate, di-(3, 4-dimethyl) benzyl sorbitol, dispersing agents and anti-aging agents. The method includes processes of fitting grinding, spray-drying, acidifying, mixing, ultrasonic treatment, extrusion, stretching, heat setting and the like. The graphene composite cable material and the method have the advantages that requirements of high-voltage and direct-current power transmission cables on the hardness and the toughness of the graphene composite cable material prepared by the aid of the method can be met, the graphene composite cable material is good in environmental protection performance and low in integral cost, accordingly, industrial requirements can be met, and the graphene composite cable material and the method have excellent application prospects.

The invention discloses a method for preparing oligofuran dioctyl phthalate ester by directly esterifying and polymerizing. The method is characterized by comprising the following steps of: under the action of a compound catalyst, undergoing esterification and polymerization reactions on 2,5-furan dioctyl phthalate and low-carbon diatomic alcohol serving as raw materials at the temperature of 130-280 DEG C under the pressure of 2-15 mmHg for 1.5-16 hours; removing excessive low-carbon diatomic alcohol and other impurities by using a vacuum distillation or azeotropic distillation method; and purifying a polymer product with a dissolving-precipitating technology to obtain a high-quality oligofuran dioctyl phthalate ester product. The method has the advantages of high product yield, easinessin separating the product and good application prospect.

The invention belongs to the technical field of organic synthesis and discloses a polyfuran compound and a preparation method thereof. The polyfuran compound has a structural general formula shown as a formula (I). The preparation method includes: in a normal-pressure oxygen environment, enabling bifunctional aryl acetylene monomer and oxygen to be in polymerization reaction in an organic solvent through joint action of a catalyst and a cocatalyst; dissolving a product in the organic solvent; adding into methanol for precipitation; collecting precipitate; drying to constant weight to obtain the polyfuran compound. The preparation method is conducted in the normal-pressure oxygen environment, and oxygen participates in formation of polymer, so that feeding proportion of the monomer does not need to be controlled; the polyfuran compound has high thermostability and excellent processability and has huge application prospect in the field of explosive detection and two-photo absorption due to special photophysical properties.

The object of the invention in the present application is to provide a method for producing a raw PEF yarn that can efficiently obtain a raw PEF yarn with a high storage modulus. The method for producing a PEF yarn as a polyethylene 2,5-furandicarboxylate (PEF) raw yarn is characterized in that it is provided with a spinning / stretching step in which the PEF-containing resin composition The undrawn yarn formed by melt spinning is continuously stretched without recovery to obtain the PEF raw yarn, and then the PEF raw yarn is taken up, wherein the take-up speed (T) of the PEF raw yarn is the same as that during the melt spinning. The ratio (T / E) of the speed (E) of extruding the resin composition in a filament shape was 700-2000.

A solid-state polymerized poly(tetramethylene-2,5-furandicarboxylate) polymer is produced in a process including: providing a poly (tetramethylene-2,5-furandicarboxylate) polycondensate having a number average molecular weight (Mn) of at least 10,000, as determined by Gel Permeation Chromatography (GPC) using polystyrene as standard, and having a content of carboxylic acid end groups of at most 50 meq / kg; and keeping the poly(tetramethylene-2,5-furandicarboxylate) polycondensate at a temperature in the range of 80 to 140° C. to obtain a semi-crystalline polycondensate; and subjecting the semi-crystalline polycondensate to solid-state polymerization by keeping the semi-crystalline polycondensate at a temperature of at least 140° C. and below its melting point, whilst the semi-crystalline polycondensate is either under a flow of inert gas or under vacuum to obtain the solid-state polymerized poly(tetramethylene-2,5-furandicarboxylate) polymer.

Thermoformed article comprising poly(ethylene-2,5-furandicarboxylate) polyester, which polyester has a weight average molecular weight (Mw) of at least 50,000, determined by gel permeation chromatography using polystyrene as standard and which polyester is semicrystalline, is prepared in a process comprising: providing a sheet that comprises poly(ethylene-2,5-furandicarboxylate) polyester, which polyester has a weight average molecular weight (Mw) of at least 50,000, determined by gel permeation chromatography using polystyrene as standard and which polyester is semicrystalline; heating the sheet to a temperature above its glass transition temperature to obtain a pliable sheet; shaping the pliable sheet in a mold to a desired shape to obtain a pliable shaped article; cooling the pliable shaped article; and releasing the thus cooled shaped article from the mold.

A furan can for containing a product includes a sealed container that contains the product and includes a furan resin selected from the group consisting of: poly (ethylene 2,5-furan dicarboxylate) (PEF), poly (butylene 2,5-furan dicarboxylate) (PBF), poly (trim ethylene furan dicarboxylate) (PTF), poly (propylene 2,5-furandicarboxylate) (PPF), and poly (neopentyl 2,5-furandicarboxylate) (PNF); and a release mechanism to open the container and access the product. The can may further include a generally cylindrical shell molded to have a sealed bottom and a straight wall that includes the furan resin; and a cap to seal the shell, the cap having the release mechanism and a rim that includes the furan resin; wherein the rim of the cap is bonded to the wall of the shell to releasably seal the product inside the can.

The invention relates to the field of polymer synthesis, and discloses a preparation method of a random copolymer of polyether ester based on polyethylene furandicarboxylate, using 2,5-furandicarboxylic acid and / or 2,5-furandicarboxylic acid Formic acid diester and ethylene glycol are polymerized monomers, and under the action of multi-component organic sulfonic acid catalysts and organic metal catalysts, the esterification-etherification and polycondensation reactions are carried out in sequence to prepare polyether ester random copolymers. Wherein, through the regulation and control of catalyst content, the content of diethylene glycol chain unit in the polyether ester random copolymer is 5-80 mol%. The method of the present invention can synthesize polyether ester efficiently and environmentally friendly through a one-pot method by using a low-added multi-component organic sulfonic acid catalyst and an organic metal catalyst as a composite catalyst without adding a third monomer, and the polyether ester The diethylene glycol chain unit content in the copolymer can be adjusted in a wide range, and has excellent thermodynamic properties and gas barrier properties.