Abstract: A battery pack with a suction cup for mounting in a glass connected to a cap containing a light emitting diode and magnifying lens with an insert between the pack and cap for decoration.

Abstract: The conventional electroless plating process for polymers involving (1) acid etching (2) activation by a mixture of tin salts and precious metal salts applied jointly or consecutively and (3) electroless deposition on to the activated surface, is improved by an intermediate treatment with a reducing acid solution between stages (1) and (2). Phosphorous, hypophosphorous, ortho-, hypo- and pyrophosphoric acids, preferably in amounts from 25-500 g./l. and optionally with their alkali metal and/or ammonium salts in amounts up to 500 g./l. as buffers can be used for immersions of up to 20 minutes at temperatures up to 70.degree.C. Poly phenylene oxides, ABS polymers, and polyolefins can be treated.

Abstract: Process for the preparation of a free-flowing powdered rubber by treating a rubber with an aqueous dispersion of an anti-tack agent and suspending the rubber in powdered form in a stream of gas (e.g. air), removing at least part of the water and subsequently treating the powdered rubber with a dusting material.