摘要:
The present invention relates to a coating composition in the form of a dispersion containing a polyurethane urea which (1) is terminated by a copolymer unit of polyethylene oxide and polypropylene oxide, and (2) contains at least one hydroxyl-group-containing polycarbonate polyol.
摘要:
The invention relates to water-dilutable, hydroxy-functional polyurethanes containing amide structural units, to a process for preparing them, to aqueous coating compositions prepared from them, and to their use for coating substrates.
摘要:
The invention relates to water-dilutable, hydroxy-functional polyurethanes containing amide structural units, to a process for preparing them, to aqueous coating compositions prepared from them, and to their use for coating substrates.
摘要:
The present invention relates to a method for establishing a sensor network having multiple sensor nodes, sensor nodes being able to connect to one another to transmit sensor data to a central receiving node, and information, in particular time information, being in stored in every sensor node from other neighboring sensor nodes lying in the reception area of a sensor node, on the basis of which a sensor node determines when to connect to another sensor node, initial information in the sensor node (S2) being formed by information from a mobile installation device (MGW), which is transmitted into a new sensor node (S2) during the installation thereof, the information particularly being provided in the form of a table.
摘要:
The present invention relates to a water vapor-permeable coating composite containing one or more flexible substrates, which are coated on one or both sides with one or more identical or different coating compositions, provided that at least one coating composition contains, as binder, a silica sol-modified aqueous polymer dispersion prepared from unsaturated monomers.
摘要:
The present invention relates to composite plastic moldings containing A) a thermoplastically formable, heat-resistant composite film having A1) a carrier film of a thermoplastic resin and A2) a layer of a heat-resistant soft touch coating on one side of the carrier film (A1) and B) a thermoplastic layer on the side of the carrier film (A1) facing away from the soft touch coating, wherein the soft touch coating (A2) is obtained from a composition containing i) polyurethanes and/or polyurethane-ureas which are free from hydroxyl and/or amine groups, ii) ionically modified polyurethanes and/or polyurethane-ureas which contain hydroxyl and/or amine groups, iii) at least one crosslinking agent, iv) optionally film-forming resins other than A1) or A2), and v) optionally additives. The present invention also relates to a process for the production of these composite moldings and their use in telecommunications equipment and in vehicle, ship and aircraft construction.
摘要:
The present invention relates to radiation-curable coating compositions based on tin-free aqueous polyurethane dispersions based on polyurethane acrylates (i), characterized in that the polyurethane acrylate (i) comprises as builder componentsA) one or more compounds with at least one group which is reactive towards isocyanate and at least one unsaturated group which can undergo free radical polymerization,B) one or more compounds which differ from A) and have at least one group which is reactive towards isocyanate,C) one or more compounds with at least one group which is reactive towards isocyanate and additionally at least one group having a hydrophilizing action,D) one or more organic polyisocyanates,which are reacted in the presence ofF) bismuth(III) salt(s) andG) an acid having a pKa of
摘要:
The present invention relates to a process for the preparation of low-viscosity, radiation-curable, aqueous dispersions based on polyurethane acrylates (UV-PUDs), wherein the UV-PUDs hydrophilised via hydroxy-functionalised carboxylic acids have a lower initial viscosity when a large part of the urethanisation, that is to say the reaction of the NCO-functionalised compounds with the OH-functionalised compounds, initially takes place in the absence of the acid-carrying compounds and the incorporation of the acid-carrying compounds via their hydroxyl function takes place as late as possible.
摘要:
The invention relates to a process for producing polyurethane foams for wound management wherein a composition containing a polyurethane dispersion and specific coagulants is frothed and dried.