Polymetalosilazane and process for preparing same

Details Polymetalosilazane and process for preparing same Polymetalosilazane and process for preparing same

1989-03-17

1989-12-12

Marquis, Melvyn I.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 28, 528 33, 528 38, 525475, C08F28300

Patent

active

048868604

ABSTRACT:
A novel polymetalosilazane having a metal/silicon atomic ratio of from 0.001 to 3 and a number average molecular weight of about 200 to 500,000 is prepared by a process comprising: reacting a polysilazane having a number average molecular weight of about 100 to 500,000, which has a skelton consisting substantially of units ##STR1## at least one R being hydrogen, with a metal alkoxide in which the metal is selected from metals of the groups IIA and III to V of the Periodic Table.

REFERENCES:
patent: 4482669 (1984-11-01), Seyferth et al.
patent: 4659850 (1987-04-01), Arai et al.
patent: 4720532 (1988-01-01), Seyferth et al.
patent: 4730026 (1988-03-01), Bolt et al.
D. Seyferth et al., "A Liquid Silazane Precursor to Silicon Nitride", Communications of Am. Ceram. Soc., C-13, Jan. 1983.
D. Seyferth et al., Polym. Prepr., Am. Chem. Soc., Div. Polym. Chem., 25, 10 (1984).
D. Seyferth et al., Communication of Am. Ceram. Soc., C-132, Jul. 1984.

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