Infusible preceramic polymers via ultraviolet treatment in the p

Details Infusible preceramic polymers via ultraviolet treatment in the p Infusible preceramic polymers via ultraviolet treatment in the p

1987-11-12

1992-01-21

Nelson, Peter A.

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

Synthetic resins

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

522 79, 522 81, 522 84, 522114, 522120, 522132, 522141, 522145, 522146, 522172, C08K 100, C08J 328

Patent

active

050828720

ABSTRACT:
A method is disclosed for the preparation of ceramic materials or articles by the pyrolysis of preceramic polysilanes wherein the preceramic polysilanes are rendered infusible prior to pyrolysis by exposure to ultraviolet irradiation in the presence of a reactive gas selected from the group consisting of ethylene, 1,3-butadiene, 2-methyl-1,3-butadiene, 1,4-pentadiene, silane, chlorosilane, dichlorosilane, boron trichloride, oxygen and water mixture, acetylene, and tetravinylsilane. This method is especially suited for the preparation of ceramic fibers. The ceramic fiber's surface properties can be modified by the practice of this invention; for example, a ceramic fiber with a carbon rich surface layer can be obtained when 1,3-butadiene is used as the reactive gas.

REFERENCES:
patent: 4446169 (1984-05-01), Castle et al.
patent: 4464460 (1984-08-01), Hiraoka et al.
patent: 4544729 (1985-10-01), Nate et al.
patent: 4546163 (1985-10-01), Haluska
patent: 4569953 (1986-02-01), West et al.
patent: 4587205 (1986-05-01), Harrah et al.
patent: 4588801 (1986-05-01), Harrah et al.
patent: 4602050 (1986-07-01), West et al.

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