摘要:
The invention relates to a method for producing a thermoplastic polyurethane, comprising: the reaction of an isocyanate composition at least containing 4,4'-dicyclohexylmethane diisocyanate (H12MDI) with a polyol composition (PZ) in the presence of a catalyst composition at least containing a bismuth-containing compound selected from bismuth(tricarboxylate) catalysts, the carboxyl groups independently comprising between 6 and 12 C-atoms, to obtain a molten mass; and the production of a granular material from the molten mass obtained. The invention also relates to a thermoplastic polyurethane produced or producible by the method according to the invention, and to the use thereof for the production of films, profiles, cable sheathing and sheathing for LED strips.
摘要:
The present invention relates to a composition which contains at least one thermoplastic polyurethane TPU-1 based on an aliphatic diisocyanate, a thermoplastic polyurethane TPU-2 based on an aromatic diisocyanate, a melamine cyanurate, a first phosphorus-containing flame retardant (F1) selected from the group consisting of derivatives of phosphoric acid and derivatives of phosphonic acid, and another phosphorus-containing flame retardant (F2) selected from the group consisting of derivatives of phosphinic acid. The present invention further relates to the use of such compositions for producing cable sheaths.
摘要:
The object of the invention is a preparation containing thermoplastic polyurethane which is produced at least from the following ingredients: (a) isocyanate, (b) an isocyanate-reactive substance, and preferably (c) a chain extender and/or (d) a catalyst and, as further ingredients, (e) additives and/or auxiliary substances, which are added either to the thermoplastic polyurethane during the preparation and are thus contained in the thermoplastic polyurethane and/or are contained in the preparation in addition to the thermoplastic polyurethane, wherein at least one of the ingredients contains a phenoxy group or a derivative of the phenoxy group, the base number of the preparation or of the mixture of the thermoplastic polyurethane contained in the preparation and of all ingredients being smaller than 2. The invention further relates to corresponding production methods and uses.
摘要:
The present invention relates to compositions containing at least one thermoplastic polyurethane, at least one polymer selected from the group consisting of ethylene-vinyl acetate copolymers, polyethylenes, polypropylenes, ethylene-propylene copolymers and copolymers based on styrene, at least one metal hydroxide and at least one phosphorous-containing flame retardant. The thermoplastic polyurethane is selected from the group consisting of thermoplastic polyurethanes based on at least one diisocyanate and at least one polycarbonate diol, and of thermoplastic polyurethanes based on at least one diisocyanate and polytetrahydrofuran polyol. The present invention further relates to the use of such compositions for producing cable sheathings.