摘要:
The present invention relates to an antistatic or electrically conductive, thermoset polyurethane obtained by reacting A) an organic polyisocyanate; B) a compound comprising NCO-reactive groups; and C) optionally a catalyst, a blowing agent, an auxiliary, an additive, or mixtures thereof; and wherein, the polyurethane comprises a carbon nanotube present in an amount of from 0.1 to 15% by weight based on the total weight of the polyurethane.
摘要:
The present invention relates to a polyurethane coating having pipes or hoses having a diameter of ≦95% of the thickness of the polyurethane coating, through which a medium for heat exchange flows.
摘要:
An arrangement for connecting light waveguides, in which a casing houses a carrier body in which detachable light waveguides provided with fiber end sleeves, optoelectrical components, and also electrical contacts for a connecting plug are arranged.
摘要:
A disconnector comprises a first conductor (10), a second conductor (14) which is mechanically connected with the first conductor (10) but electrically insulated therefrom, and a semiconductor switch (28) which provides an electrically switchable electric connection between the first and second conductors.
摘要:
An electric coupling for railways contains a first and a second coupling part each comprising a support in which a plurality of linking parts are arranged for establishing an electric, pneumatic and/or hydraulic link from one coupling part to another coupling part. In addition, at least one high-frequency link is provided which is formed by an enclosed antenna in one coupling part and by an enclosed antenna in the other coupling part.
摘要:
The present invention relates to an antistatic or electrically conductive, thermoset polyurethane obtained by reacting A) an organic polyisocyanate; B) a compound comprising NCO-reactive groups; and C) optionally a catalyst, a blowing agent, an auxiliary, an additive, or mixtures thereof; and wherein, the polyurethane comprises a carbon nanotube present in an amount of from 0.1 to 15% by weight based on the total weight of the polyurethane.
摘要:
A method for operating a data receiver for audio and/or video data, wherein a planned and variable program title sequence having program titles is recorded, audio and/or video data relating to at least one program title are received via a data link and are buffered, and audio and/or video data of at least one program title are reproduced. The transmission resources of the data link for audio and/or video data to be transmitted and to be buffered are distributed over at least two program titles that have not yet been reproduced by the data receiver. Also disclosed are a data receiver associated with the method and a media reproduction system connected thereto, in particular in a vehicle.
摘要:
The invention relates to a cable lug including a receiving section (12) for a cable and an attachment nut (16), wherein a defined contact area having a defined contact force exists between the cable lug (10) and a counter surface to be contacted. To this end, a contact section (14) is provided which is equipped with a bead which by means of the attachment nut (16) can be forced against a counter surface to be contacted.
摘要:
The present invention relates to high-value polyurethane (PUR) and polyurethaneurea elastomers, which can be processed in a particularly simple manner by use of low-viscosity prepolymers based on naphthalene 1,5-diisocyanate, and to a process for production thereof.