Non-flammable and optionally electrically conductive organo-sili

Details Non-flammable and optionally electrically conductive organo-sili Non-flammable and optionally electrically conductive organo-sili

1975-12-04

1979-01-23

Ivy, C. Warren

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521100, 521116, 521118, 521122, 521137, 521154, C08J 900

Patent

active

041362381

ABSTRACT:
This invention relates to a process for preparing organosilicate polymers by reaction of a water glass solution with a compound having at least two isocyanate groups. The reaction is carried out in the presence of a zwitterion compound acting as catalyst and optionally in the presence of propellants and/or water glass hardening agents, the zwitterion compound having in the molecule at least one group with positive charge, at least one group with negative charge, and additionally at least one hydrogen atom with Zerewitinov activity.

REFERENCES:
patent: 3607794 (1971-09-01), Abbotson
patent: 3634342 (1972-01-01), Boblitt
patent: 3756992 (1973-09-01), Dieterich
patent: 3981831 (1976-09-01), Markusch
patent: 3983081 (1976-09-01), Dieterich
patent: 4042536 (1977-08-01), Dieterich
patent: 4057519 (1977-11-01), Summers
Rose, The Condensed Chemical Dictionary, 5th Edition; Reinhold Pub. Corp., N.Y. 1956; pp. 1012 and 1168.

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