摘要:
The present invention relates to methods for producing a reactive polyurethane composition, by preparing in a first method step a monomer-free thermoplastic polyurethane having isocyanate-reactive groups from an isocyanate-reactive polymer or from a mixture of isocyanate-reactive polymers having a fraction of at least 90 wt % of linear molecules, by reaction with a polyisocyanate having a molecular weight
摘要:
The invention relates to profiled objects comprising a profiled region with profiled surfaces, wherein a protective material is applied to the profiles surfaces with a sealing layer of a reactive fusion mass on the surface thereof facing away from profiled surface, wherein the profiled region has at least one profile radius which is lees than 3 mm.
摘要:
The invention aims at improving a method and a device (17) for the production of veneers (1) and veneered parts (13) and to veneers (1) and veneered parts (13). To this end, a sealing layer (2) is applied on the surface of the veneer (1) before further processing. The device (17) includes a veneer producing device known per se, a finishing station (6), a transporting device (5) and a polishing station (8).
摘要:
The invention relates to a method for producing a reactive polyurethane composition. Said method is characterised by a first step wherein a monomer-free thermoplastic polyurethane is produced from an isocyanate reactive polymer or a mixture of isocyanate reactive polymers having a proportion of at least 90wt. %, preferably at least 95 wt. %, more particularly at least 99 wt. % of linear molecules by reacting it with a polyisocyanate having a molecular weight of
摘要:
The invention relates to a packaging sleeve for transporting and/or storing solid useful material which can be deformed under the effect of temperature, comprising a bottom and a body which is connected to the body. The invention is characterized in that the bottom is made of a honeycomb plate and the body is made of wound cardboard.
摘要:
The invention relates to a method for sealing at least one part of the surface of an object. Said method consists of the following steps (a) a layer which is made of a radiation-hardened melting mass based on a humidity cross-linked polyurethane is applied to at least one part of the surface of the object; and (b) the melt mass layer is radiated. The invention also relates to sealed surfaces of the object in addition to the use of the above-mentioned melt mass for sealing the surfaces.
摘要:
The invention relates to a packaging sleeve for transporting and/or storing solid useful material which can be deformed under the effect of temperature, comprising a bottom and a body which is connected to the body. The invention is characterized in that the bottom is made of a honeycomb plate and the body is made of wound cardboard.