Method for deodorizing sic-linked polyethersiloxanes

Details Method for deodorizing sic-linked polyethersiloxanes Method for deodorizing sic-linked polyethersiloxanes

1992-04-01

1993-07-06

Bleutge, John C.

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

Synthetic resins

From silicon reactant having at least one...

528 14, 528 15, 528 31, 528 25, 556445, 525474, C08G 7706

Patent

active

052255093

ABSTRACT:
A method for deodorizing polyoxyalkylene polysiloxane mixed block polymers wherein the polysiloxane blocks are linked to the polyether blocks through SiC linkages is disclosed. Hydrogen is allowed to act on the mixed block polymers in the presence of hydrogenation catalysts at temperatures of 20.degree. to 200.degree. C. and a pressure of 1 to 100 bar for a period of 0.5 to 10 hours.

REFERENCES:
patent: 4515979 (1985-05-01), Otsuki et al.
patent: 4520160 (1985-05-01), Brown
patent: 4847398 (1989-07-01), Mehta et al.
patent: 4857583 (1989-08-01), Austin et al.
patent: 5118764 (1992-06-01), Ichinohe et al.

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