Abstract:
The invention relates to a method for producing compounds containing isocyanate and silane groups by reacting at least A) one monomeric diisocyanate containing aliphatically, cycloaliphatically, araliphatically and/or aromatically bonded isocyanate groups with B) a mercaptosilane, characterised in that component A) is reacted with component B) in an equivalent ratio of isocyanate groups to mercapto groups of at least 06:01 to at most 40:1. Furthermore, the invention relates to the products which can be obtained using the method according to the invention, and to a composition containing compounds that contain isocyanate and silane groups. Moreover, the invention relates to the use of the products which can be obtained using the method according to the invention and the composition according to the invention as starting components in the production of silane group-containing polyurethanes, cross-linkable binders, varnish, and raw materials for sealants or adhesives.
Abstract:
The invention relates to polyisocyanate polyaddition products and to the use of specific catalysts for their preparation, and to their use, in particular for the coating sector.
Abstract:
The present invention relates to a method for producing linear and/or cyclic carbonate esters, involving the step of reacting an epoxide with carbon dioxide in the presence of a catalyser. The invention further relates to the use of special catalysers for reacting epoxides with carbon dioxide, special catalysers and special reaction products. The catalyser comprises a complex of a metal M or M-A with a ligand L, the metal M being present in an oxidation state of >=0, A standing for halide, carboxylate, phenolate, sulfonate, phosphonate, alkyl, alkoxy or amido, and the ligand L having the subsequent structure (Ia) or (Ib), wherein one or both of the OH groups shown in (Ia) and/or (Ib) can also be deprotonated.
Abstract:
The invention relates to processes for preparing metal(IV) compounds which are suitable especially as catalysts for preparation of polyesters, polyurethanes and polysiloxanes, and to the use of the metal compounds for preparation of polyesters, polyurethanes or polysiloxanes.
Abstract:
The invention relates to layer structures for ID cards on which information can be written by laser engraving and which have an additional layer that is applied to the card body after the laser engraving and restricts or completely prevents subsequent writing on the card by means of laser engraving, and consequently prevents falsification of the identifying information contained, and relates to a method for blocking the laser engraving writability of layer structures on which information can be written by laser engraving.
Abstract:
A masterbatch comprising pigment and demolding agent is provided. The demolding agent is selected from the group comprising low molecular weight polyolefin oils, low molecular weight polyolefin waxes, montan waxes and aliphatic or aromatic carboxylic acid esters of fatty acids and/or fatty alcohols, wherein the pigment content of the masterbatch is from 3 to 70 wt. %, based on the total weight of the masterbatch. The masterbatch is suitable for preparation of a polymer composition having improved pigment dispersion.
Abstract:
The present invention relates to a process for the production of carbon nanotubes by decomposition of hydrocarbons on a heterogeneous catalyst in a fluidized bed reactor, wherein the reactor can be operated batchwise or continuously, and in the case of continuous operation discharge can take place with sifting or without sifting.
Abstract:
The present invention relates to a multilayer structure comprising A) a functional film comprising a VIS/IR-reflecting metal layer on a carrier film, wherein the carrier film can be in single-layer form or in the form of a UV- and/or UV/VIS-reflecting multi-ply layer, and at least one adhesive layer, and optionally at least one scratch-resistant layer, B) a functional layer comprising a layer of metal nitrides, metal oxides or semimetal oxides, mixed oxides or metals, wherein the layer can additionally have a coating, C) optionally a carrier film, D) optionally an adhesive layer, E) a substrate layer. By means of such a multilayer structure it is possible, in the adhesive bonding of thin functional films by means of a PSA (“pressure sensitive adhesive”) to thermoplastics such as, for example, polycarbonate, largely to avoid blistering of the adhesively bonded film in the case of outside use (in a changing climate).
Abstract:
The invention relates to low-viscosity, low-monomer aqueous polymer dispersions based on polychloroprene, and a process for the preparation thereof and the use thereof as a contact adhesive.
Abstract:
The invention relates to radiation curable coating systems on the basis of aqueous polyurethane dispersions, to a method for the production thereof, to the use of the coating systems as paints and/or adhesives, and to objects and substrates provided with said paints and/or adhesives.