64 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.

This invention is directed to oligofurans, process of preparation and uses thereof.

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.

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.