Evonik Degussa Gmbh

Degussa Aktiengesellschaft

Werner Michel

Rüdiger Nowak

Mario Scholz

Uwe Schachtely

Dieter Kuhn

Ulrich Boes

Pia Buckel

Thomas Welker

Andrea Tietze

Pia Hofacker

Thermoplastic elastomer, which comprises a fumed, hydrophilic or hydrophobic silica, which has been structurally modified and also a process for the improvement of the mechanical properties of thermoplastic elastomers. The thermoplastic elastomers are produced by preparing a masterbatch from the components (e.g. thermoplastic resin component and fumed silica) and compounding this with further thermoplastic elastomers.

Thermoplastic elastomers

Adhesive and sealant systems based on epoxy resins, polyurethane, silane-terminated polymers, silicones, unsaturated polyester resins, vinyl ester resins, acrylates, polyvinyl acetate, polyvinyl alcohol, polyvinyl ether, ethylene vinyl acetate, ethylene-acrylic acid copolymers, polyvinyl acetates, polystyrene, polyvinyl chloride, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, polysulfide, polyethylene, polypropylene, fluorinated hydrocarbons, polyamides, saturated polyesters and copolyesters, phenol-formaldehyde resins, cresol-/resorcinol-formaldehyde resins, urea-formaldehyde resins, melamine-formaldehyde resins, polyimides, polybenzimidazoles, polysulfones, which contain 1 wt. % to 15 wt. % of a compacted, hydrophobic pyrogenic silica.

Adhesive and sealant systems

Cable gels contain, in addition to polypropylene glycol and polyol, from 1 to 15 wt. % of a compressed fumed silica which has been rendered hydrophobic with silicone oil.

Cable gels for optical fibre cables

Growing community of inventors

Lützelbach, Germany

Werner Michel