Infusible preceramic silazane polymers via ultraviolet irradiati

Details Infusible preceramic silazane polymers via ultraviolet irradiati Infusible preceramic silazane polymers via ultraviolet irradiati

1986-09-08

1989-03-28

Briggs, Sr., Wilbert J.

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

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 42, 522 44, 428364, 525474, 525477, B32B 2216, C08J 328, B05D 306

Patent

active

048164976

ABSTRACT:
A method is disclosed for the preparation of ceramic materials or articles by the pyrolysis of mixtures of vinyl- or allyl-containing preceramic silazane polymers, mercapto compounds, and photoinitiators wherein the mixtures are rendered infusible prior to pyrolysis by ultraviolet (UV) irradiation. This method is especially suited for the preparation of ceramic fibers.

REFERENCES:
patent: 4537942 (1985-08-01), Brown-Wensley
patent: 4611035 (1986-09-01), Brown-Wensley
patent: 4631260 (1986-12-01), Bartos

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