Process for preparing methylhydrogenpolysiloxanes having trimeth

Details Process for preparing methylhydrogenpolysiloxanes having trimeth Process for preparing methylhydrogenpolysiloxanes having trimeth

1999-05-25

2000-11-07

Dawson, Robert

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

556456, 508207, 528 31, 528499, 525474, C08G 7706, C08G 7712

Patent

active

061439126

ABSTRACT:
A process for preparing methylhydrogenpolysiloxanes having trimethylsilyl end groups wherein, in a first step, methyldichlorosilane and trimethylchlorosilane are reacted with at most 0.5 mol of water per mole of hydrolyzable chlorine to give a partial hydrolysate and gaseous hydrogen chloride and, in a second step, the partial hydrolysate, to remove the SiCl groups still present, is treated with water, forming hydrochloric acid.

REFERENCES:
patent: 2491843 (1949-12-01), Wilcock
patent: 2758124 (1956-08-01), Schwenker
patent: 4382145 (1983-05-01), Yeboah

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