Abstract:
The invention relates to a method for producing polymer fibres, especially nanofibres and mesofibres, a colloidal dispersion of at least one essentially water-insoluble polymer being electrospun in an aqueous medium. The invention also relates to fibres obtained by said method, textile fabrics containing the fibres according to the invention, and the use of said fibres and said textile fabrics.
Abstract:
The present invention pertains to fibers comprising: (A) from 50 to 100 wt. percent (based on the combined weights of Components A and B) of at least one substantially random interpolymer having an I2 of from 0.1 to 1,000 g/10 min, a density greater than 0.9300 g/cm ,and an Mw/Mn of 1.5 to 20; which comprises: (1) from 0.5 to 65 mol percent of polymer units derived from: (i) at least one vinyl or vinylidene aromatic monomer, or (ii) at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, or (iii) a combination of at least one aromatic vinyl or vinylidene monomer and at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene monomer, and (2) from 35 to 99.5 mol percent of polymer units derived from ethylene or at least one C3-20 alpha -olefin or a combination thereof; and (B) from 0 to 50 percent by weight (based on the combined weights of Components A and B) of at least one takifier. The fibers of the present invention could have applications such as carpet fibers, elastic fibers, doll hair, personal/feminine hygiene applications,diapers, athletic sportswear, wrinkle free and form-fitting apparel, conductive fibers, upholstery, and medical applications including, but not restricted to, bandages, gamma sterilizable non-woven fibers.
Abstract:
The invention relates to thermoplastic moulding materials containing the following: A) 30 to 98 wt. % of a copolymer consisting of vinyl aromatic monomers and 1.1-diphenylethylene or derivatives thereof which are optionally substituted with alkyl groups with up to 22 C-atoms on the aromatic rings; B) 1 to 50 wt. % of fibrous or particulate fillers or mixtures thereof; C) 1 to 20 wt. % of a polymer or polymer mixtures modified with polar groups and D) 0 to 68 wt. % of other additives, the sum of A), B), and C) being 100 wt. %.
Abstract:
The present disclosure relates to a spinning beam for producing hollow fiber membranes in a phase inversion process, and to a process using the spinning beam.
Abstract:
Faser- oder folienartige Formkörper werden aus einer plastifizierten Mischung erzeugt, die bezogen auf ihr Gewicht, aus 60 bis 10 Gew.% einer Trägerkomponente und 40 bis 90 Gew.% eines Phasenwechselmaterials besteht, wobei, bezogen auf das Gewicht der plastifizierten Mischung, die Trägerkomponente 5 bis 20 Gew.% eines Polymers oder Polymerblends aus der Gruppe LDPE (Low Density Polyethylene), HDPE (High Density Polyethylene), PMMA (Polymethylmethacrylat), Polycarbonat und Mischungen davon, 5 bis 20 Gew.% eines Styrol-Blockcopolymers und 0 bis 20 Gew.% eines oder mehrerer Additive enthält, und das Phasenwechselmaterial gewählt ist aus der Gruppe umfassend natürliche und synthetische Paraffine, Polyethylenglykol (= Polyethylenoxid) und Mischungen davon, und die plastifizierte Mischung mit einer Temperatur von 130 bis 220 °C durch eine Spinndüse oder eine Breitschlitzdüse extrudiert und abgeschreckt wird.
Abstract:
The invention relates to the production method of inorganic nanofibres through electrostatic spinning of solution, which comprises alkoxide of metal or of semi-metal or of non-metal dissolved in a solvent system on basis of alcohol. The solution is stabilised by chelating agent, which prevents hydrolysis of alkoxide, and after homogenisation it is mixed with solution of poly(vinylpyrrolidone) in alcohol, after then the resultant solution is brought into electrostatic field, in which the electrostatic spinning is running continually, the result of which is production of organic-inorganic nanofibres, which are after then calcinated outside the spinning device in the air atmosphere at the temperature from 500 °C to 1300 °C.
Abstract:
The invention relates to the production method of inorganic nanofibres through electrostatic spinning of solution, which comprises alkoxide of metal or of semi-metal or of non-metal dissolved in a solvent system on basis of alcohol. The solution is stabilised by chelating agent, which prevents hydrolysis of alkoxide, and after homogenisation it is mixed with solution of poly(vinylpyrrolidone) in alcohol, after then the resultant solution is brought into electrostatic field, in which the electrostatic spinning is running continually, the result of which is production of organic-inorganic nanofibres, which are after then calcinated outside the spinning device in the air atmosphere at the temperature from 500 °C to 1300 °C.