Metallgesellschaft Aktiengesellschaft

Schweizerische Aluminium Ag

Reiner Theobald

Ulrich Heubner

Gerfried Unger

Ralph-Josef Hecktor

Franz Specht

The method of reprocessing cured polysulfide and polymercaptan elastomers includes reacting an 0.5 to 400 percent-by-weight portion of a polysulfide and/or polymercaptan elastomer with at least one liquid di- or polymercapto compound, with a plasticizer and with a filling material and with an binding agent to form a polysulfide sealing material-base component. Then a polysulfide sealing material curing agent is added to the polysulfide sealing material-base component to form the reprocessed cured polysulfide sealing material with a Shore-A-Hardeness&gt;40 and a tensile strength&gt;1 MPa.

Method of reprocessing cured polysulfide and/or mercaptan elastomers

A belt-type metal-casting machine comprises a metallic casting belt, preferably of steel, having its side turned toward the melt formed with a heat-lagging (thermal-insulating) layer upon which at least one abrasion-resistant cover layer is applied. The cover layer consists of one or more metals whose fusion temperature or melting point in Kelvin .degree. is equal to or greater than 0.7 times the melting temperature, in .degree.K, of the casting metal to be applied.

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Frankfurt-am-Main, Germany

Reiner Theobald