Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1986-06-30
1988-04-12
Bell, Mark L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525479, 528 15, 528 31, 528 32, 501 88, 501 90, C08F28300, C04B 3556
Patent
active
047375523
ABSTRACT:
A method is disclosed for the preparation of ceramic materials with reduced oxygen levels from polycarbosilanes by the pyrolysis of a mixture of a polycarbosilane, a hydrosilylation catalyst, and an unsaturated compound selected from the group consisting of reactive diolefins, reactive alkynes, polyolefins, vinylsilanes, and unaturated siloxanes where the mixture is rendered infusible prior to pyrolysis by heating to relatively low temperatures in an inert atmosphere. This invention is especially well suited for the production of ceramic fibers from polycarbosilanes.
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Baney Ronald H.
Burns Gary T.
Bell Mark L.
Dow Corning Corporation
Green Anthony
McKellar Robert L.
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