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62 results about "Polyfuran" patented technology

Polyfuran (PFu) is a polymer that consists of multiple furanylene rings. Such materials are of interest for their potential in molecular electronics, although much less studied than polythiophenes and polypyrroles. Polyfuran is distinct from furan resins, a class of non-conjugated polymers. Furan resins are of commercial interest, in contrast to polyfuran.

Polyester with high glass-transition temperature and low melting point, polyester product, and preparation method and application thereof

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.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI

Barrier coating, preparation method thereof and recyclable paper

The invention discloses a barrier coating, a preparation method thereof and recyclable paper. The barrier coating is prepared from the following components: acrylic emulsion, deionized water, polyethylene furandicarboxylate, hydrogenated polydecene, a dispersing agent, a wetting agent and a defoaming agent. The intrinsic viscosity of the polyethylene furandicarboxylate is controlled between 0.2 dL / g and 0.4 dL / g. The excellent barrier property and the excellent anti-adhesion property of a single coating can be realized, and meanwhile, the recoverability is realized. The problems that existing materials cannot be recycled and construction is complex are solved.
Owner:WANHUA CHEM GRP CO LTD

Production method of polyester film having furandicarboxylic acid unit

The present invention provides a method for producing a biaxially oriented polyester film that can be used in industrial applications and packaging applications. A method for producing a biaxially oriented polyester film, characterized in that it comprises the steps of: feeding a polyester resin into an extruder; extruding the melted polyester resin from the extruder to obtain 250- A step of melting the resin sheet at 310°C; a step of bringing the molten resin sheet into close contact with a cooling roll by an electrostatic application method to obtain an unstretched sheet; and a step of biaxially stretching the above-mentioned unstretched sheet, and the above-mentioned polyester The resin satisfies the following (A) to (C): (A) the above-mentioned polyester resin contains polyethylene furandicarboxylate resin formed by furandicarboxylic acid and ethylene glycol; (B) the intrinsic viscosity of the above-mentioned polyester resin It is more than 0.50dL / g; (C) the melting resistivity value at 250°C of the above-mentioned polyester resin is 3.0×10 7 Ω·cm or less.
Owner:TOYOBO CO LTD +1
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