Dow Corning Corporation

Steven E Cray

Daniel Graiver

John Donald Blizzard

Arnold W Lomas

James McVie

Mubarik M Chowdhry

Jenny L Gilles

A process of manufacturing elastomeric fibers in which fibers are obtained by co-extruding an extrudable and curable .tbd.SiO-- containing material and an aqueous organic polymer solution into a coagulation bath. The .tbd.SiO-- containing material is surrounded by the coagulated organic polymer. The .tbd.SiO-- containing material is then cured inside the protective sheath that is formed, and thereafter the organic polymer sheath is dissolved to expose a continuous elastomeric fiber of the .tbd.SiO-- material.

Method of making fibers

A process for the preparation of amino-substituted organopolysiloxanes which comprises the steps of mixing a catalyst comprising both (i) at least one compound selected from barium hydroxide and strontium hydroxide and (ii) at least one compound selected from borates and phosphates of sodium with (A) a silanol terminated organopolysiloxane compound and (B) an organosilicon compound having at least one silicon-bonded alkoxy or alkoxyalkoxy group and a monovalent substituent composed of carbon, nitrogen and hydrogen and having at least one --NH.sub.2 therein attached to silicon by way of a silicon to carbon linkage and thereafter allowing (A) and (B) to react at a temperature of at least 50.degree. C.

Process for the preparation of organopolysiloxanes

Growing community of inventors

Sully, United Kingdom

Steven E Cray