Abstract: A sprayable plastisol composition comprises 10 to 60% by weight of a polymer powder mixture having a particle size of less than 60 microns of a first polymer component and a second slightly cross-linked polymer component, whereby the first component forms the continuous phase after gelling of the plastisol and the second component is present as discontinuous phase dispersed therein, 15 to 65% by weight of a plasticiser which is compatible with the first polymer component but incompatible with the second polymer component, and 0 to 40% by weight of fillers. The composition is especially suitable for use in sound damping of sound emitting surfaces.

Abstract: One-component, moisture-hardening sealants and adhesives contain telechelic isocyanate prepolymers obtainable by reacting diisocyanates and/or polyisocyanates in stoichiometric excess with polyester polyols, polyether polyols and hydroxy-functional (meth) acrylate prepolymers, as well as conventional plasticizers, the polyester polyols having branches, more particularly formed by alkyl radicals containing no functional groups. The polyester polyols can either be obtained by reacting corresponding branched diols and/or dicarboxylic acids or by subsequent grafting of side groups on to straight-chain polyester polyols. The sealants and adhesives are transparent or translucent, have a high ageing stability and excellent mechanical characteristics.

Abstract: The invention is directed to a process for preparing a sealant and adhesive useful, e.g., in double glazing systems. The sealant comprises 20-80 weight percent epoxidized natural rubber, 5-30 weight percent of at least one further epoxy compound, and, as a crosslinking agent, a polyamine or polymercaptan carrying trialkoxysilyl groups. The crosslinking agent is incorporated into the epoxidized natural rubber in one step.

Abstract: For the at least partial curing of sealants and adhesives in particular in connection with the direct glazing of motor vehicles, at least part of the sealant and adhesive is heated by applying microwave energy.

Abstract: Heat- and moisture hardening, one component polyurethane sealants and adhesives based on telechelic isocyanate prepolymers made from aromatic diisoyanates in stoichiometric excess and polyols comprise (a) a catalyst for moisture-hardening and (b) a blocked cross-linking agent activatable by heating, particularly a methylene dianiline/sodium chloride complex compound or a polyamino- or hydroxy-functional compound in microencapsulated form.

Abstract: A polyurethane sealant, particularly suitable for forming the seal around a double glazing unit, is formed by reacting an isocyanate component with a reactive component that is an isoprene polymer having terminal functional groups.

Abstract: A polyurethane sealant, particularly suitable for forming the seal around a double glazing unit, is formed by reacting an isocyanate component with a reactive component that is an isoprene polymer having terminal functional groups.