Abstract:
Bead foams made of thermoplastic polyurethane and polypropylene(s), moldings produced therefrom, processes for the production of the bead foams and moldings, and uses of the moldings in shoe intermediate soles, shoe insoles, shoe combisoles, cushioning elements for shoes, bicycle saddles, bicycle tires, damping elements, cushioning, mattresses, underlays, grips, protective films, in components in the automobile-interior sector or automobile-exterior sector, balls and sports equipment, or as floor covering, may be based on composition with (a) 60 to 90 wt. % of thermoplastic polyurethane as component I, (b) 10 to 40 wt. % of polypropylene as components II, where the entirety of components I and II provides 100 wt. %.
Abstract:
Bead foams may be made of thermoplastic polyurethane and polyethylene(s), and moldings produced therefrom, may made of a composition with (a) 60 to 90 wt. % thermoplastic polyurethane and (b) 10 to 40 wt. % of polyethylene, relative to a total 100% by weight. The bead foams and moldings may be produced and/or used for shoe intermediate soles, shoe insoles, shoe combisoles, cushioning elements for shoes, bicycle saddles, bicycle tires, damping elements, cushioning, mattresses, underlays, grips, protective films, in components in the automobile-interior sector or automobile-exterior sector, balls and sports equipment, or as floor covering.
Abstract:
A process for producing a block copolymer may involve reacting at least one aromatic polyester having a melting point in the range from 160 to 350° C. with at least one second compound selected from diamines and diols at temperatures greater than 160° C. to obtain a mixture; and heating the mixture at a temperature in the range from 100° C. to 300° C. for from 1 to 240 hours to obtain a block copolymer, wherein in the reacting, the second compound is employed in an amount of 0.02 to 0.3 mol per mol of ester bond in the polyester. Block copolymers may be obtained by such a process and used for producing extruded, injection molded and pressed articles and also foams, foam particles, shoe soles, cable sheaths, hoses, profiles, drive belts, fibers, nonwovens, films, moldings, plugs, housings, damping elements for the electronic/automotive industry, mechanical engineering, 3-D printing, medicine, or consumer goods.
Abstract:
The present invention relates to a hybrid material comprising a matrix of polyurethane and foamed particles of thermoplastic polyurethane comprised therein and also a process for producing such hybrid materials and the use of these hybrid materials as bicycle saddles, upholstery and shoe soles.
Abstract:
Foam beads based on thermoplastic elastomers and having a coating comprising at least one electrically conductive substance, processes for producing same by coating the foam beads with an emulsion of a conductive substance in a plasticizer, and also processes for producing bead foams by joining the foam beads together thermally via high-frequency electromagnetic radiation.
Abstract:
The present invention relates to thermoplastic polyurethanes obtainable or obtained by reaction of at least one aliphatic polyisocyanate; at least one chain extender; and at least one polyol composition, where the polyol composition comprises a polyol selected from the group consisting of polyetherols and at least one bisphenol derivative selected from the group consisting of bisphenol A derivatives with a molecular weight Mw>315 g/mol and bisphenol S derivatives with a molecular weight Mw>315 g/mol, where at least one of the OH groups of the bisphenol derivative is alkoxylated, and to processes for producing such thermoplastic polyurethanes and to the use of a thermoplastic polyurethane according to the invention for producing extrusion products, films and moldings.
Abstract:
The invention relates to a flexible polyurethane foam comprising viable and/or germinated plant seeds. The flexible polyurethane foam may comprise a reinforcing fabric composed of fibers, for example synthetic-polymer fibers or rottable natural fibers. The flexible polyurethane foam may further comprise a substance having high water-holding capacity, for example a polyacrylate-based superabsorbent. By way of plant seeds the flexible polyurethane foam may comprise seeds of grasses, mosses, lichens, ferns, fungi, aquatic plants, flowering plants and perennial woody plants. The flexible polyurethane foam is obtained by mixing (a) polyisocyanates with (b) at least one comparatively high molecular weight compound having at least two reactive hydrogen atoms, (c) optionally low molecular weight chain-extending agents and/or crosslinking agents, (d) catalysts, (e) blowing agents, (f) optionally other added-substance materials and (g) plant seeds and reacting the mixture to form the flexible polyurethane foam. To vegetate areas, the flexible polyurethane foam in the form of a finite or continuous sheet is laid on the area or firmly bonded thereto and irrigated. This permits vegetation of exteriors, roof areas, rocky soils, sound-absorbing barriers and desert floors. A flexible polyurethane foam comprising viable and/or germinated lawn seed can be used as rolled sod.
Abstract:
A polymer composition comprising at least one thermoplastic polyurethane (TPU) with a Vicat softening point (in accordance with ISO 306/A50) below 80° C. and from 5 to 95% by weight of at least one polymer obtainable via free-radical polymerization, based on the entirety of TPU and of the polymer obtainable via free-radical polymerization, where the polymer obtainable via free-radical polymerization has been bonded in the form of comb polymer, graft polymer, or copolymer to the TPU, is particularly suitable for injection-molding applications.
Abstract:
Molded articles contain a foam composed of a thermoplastic elastotner (TPE-1). The foam has a storage modulus (G modulus) at 25° C. and 1 Hz within the range from 0.01 to 0.5 MPa, a molding density within the range from 20 to 400 kg/m3, and a comfort factor of greater than 4. A process produces molded articles of this kind, and the molded article can be used for producing floors, mattresses, seating furniture, bicycle saddles, car seats, motorcycle seats, components of a shoe, shoe inserts, packaging, shock absorbers, protectors, fall protection mats, elastic insulating material, or sealing material.
Abstract:
Molded parts for automobile interiors can be made from expanded thermoplastic polyurethane beads. Processes can be used to produce the molded parts from thermoplastic polyurethane.