Abstract: The curable casting compound comprises an epoxy resin having at least one aminoglycidyl group in the molecule, a curative, and a fluorosurfactant. In the manufacture of products based on this casting compound, the shaping and curing operation can be shortened considerably.

Abstract: Curable epoxy resin composition comprising a polyepoxide; an anhydride hardener; a 1-substituted imidazole as catalyst; at least a diol in an amount of from 5 to 50 phr of said polyepoxide; a filler in an amount of from 200 to 600 phr of said polyepoxide and optionally additives. It shows improved crack resistance properties. An improved process for the fabrication of thermoset articles is also disclosed.

Abstract: Bulk-modified potting composition based on a curable epoxy resin or on a mixture of these resins, where the resin or the mixture is composed of an epoxy resin, a hardener, where appropriate an accelerator, and also other additives, such as fillers, flexibilizers, and colorants, which potting composition (a) comprises a three-dimensionally crosslinked polysiloxane in disperse form and with a particle size in the range from 0.02 &mgr;m to 50 &mgr;m, which, where appropriate, has reactive groups which can react chemically with the epoxy resin and/or the hardener, (b) a selected linear or branched siloxane compound which has reactive groups which can react chemically with the epoxy resin and/or the hardener; and also, where appropriate, (c) a low-molecular-weight oligomeric siloxane compound, the use of the potting composition as an engineering material or as an insulating material, and the moldings and insulation produced therefrom.

Abstract: Addition-crosslinking silicone rubber mixtures and a process for coating substrate surfaces and shaped composites with this mixture are disclosed. The addition-crosslinking silicone rubber mixture comprises at least the following constituents: (a) a cyclic, linear or branched organopolysiloxane which contains on average at least two alkenyl groups per molecule and has a viscosity of from 0.01 to 30,000 Pas; (b) a cyclic, linear or branched organohydrogenpolysiloxane which may contain dimethylsilyloxy groups and preferably has on average at least two SiH groups per molecule; and (c) a catalytically effective amount of the compound cis-dichlorobis(styrene) platinum(II), which may have been dissolved in a suitable organic solvent, where the molar ratio of the SiH groups present in the mixture to the Si-bonded alkenyl groups present in the mixture is at least 1.5, preferably from about 1.5 to 4.5 and more preferably from about 1.8 to about 2.5.

Abstract: Extinguishing medium in pasty to solid form for quenching electric arcs, consisting of a silicone polymer or a mixture of such silicone polymers, with the silicone polymer or the mixture of silicone polymers containing a mineral compound or a mixture of such compounds in powder form as a filler; use of the extinguishing medium to quench electric arcs in overcurrent-protection elements, in electronics and microelectronics; in high-voltage engineering; or in repeating fuses, and electrical devices, machines and systems which contain an extinguishing medium according to the invention.

Abstract: The curable casting compound comprises an epoxy resin having at least one aminoglycidyl group in the molecule, a curative, and a fluorosurfactant.

Abstract: The present invention relates to a liquid or pastelike casting composition based on a polymeric matrix resin or on a mixture of such resins for producing self-healing electrical insulators, the casting composition including in uniform distribution a selected hydrophobicizing compound or a mixture of such compounds in encapsulated form. The casting composition includes a thermosettable casting resin system, based preferably on a thermosettable polycondensate, a thermosettable polyadduct, and/or a hybrid form thereof.

Abstract: Addition-crosslinking silicone rubber mixtures and a process for coating substrate surfaces and shaped composites with this mixture are disclosed.

Abstract: The resin system comprises at least two components which can be stored separately and crosslinked with one another at room temperature, preferably without curing accelerators. The first component comprises at least one compound of the formula (I) where A is an unsubstituted or substituted aromatic radical. The second component comprises at least one cyclic anhydride of an organic acid.

Abstract: Liquid or pastelike casting composition based on a polymeric matrix resin or on a mixture of such resins for producing self-healing electrical insulators, said casting composition comprising in uniform distribution a selected hydrophobicizing compound or a mixture of such compounds in encapsulated form. The casting composition comprises a thermosettable casting resin system, based preferably on a thermosettable polycondensate, a thermosettable polyadduct, and/or a hybrid form thereof.

Abstract: Extinguishing medium in pasty to solid form for quenching electric arcs, consisting of a silicone polymer or a mixture of such silicone polymers, with the silicone polymer or the mixture of silicone polymers containing a mineral compound or a mixture of such compounds in powder form as a filler; use of the extinguishing medium to quench electric arcs in overcurrent-protection elements, in electronics and microelectronics; in high-voltage engineering; or in repeating fuses, and electrical devices, machines and systems which contain an extinguishing medium according to the invention.