Coating composition

Details Coating composition Coating composition

1989-12-05

1993-05-04

Stoll, Robert L.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524394, 524398, 524399, 524439, 524492, 10628711, C08G 7704, C08G 7726

Patent

active

052082849

ABSTRACT:
Coatings compositions, which are useful as buffer layers between ceramic layers derived from polysilazane-containing compositions and ceramic layers derived from organoborosilazane polymer-containing compositions, are obtained by dissolving (A) a Group IIIa metal hydrocarbyloxide, such as aluminum sec-butoxide, (B) a Group IVb metal hydrocarbyloxide, such as zirconium propoxide, (C) a bis-, tris-, or tetrakis(dialkylamino)metal of Group IVb, such as tetrakis(diethylamino)titanium, (D) a polysilazane and/or a bis-, tris-, or tetrakis(dialkylamino)silane, such as tetrakis(dimethylamino)silane, and (E) optionally also a cyclopentadienyl Group IVb metal halide, such as bis(cyclopentadienyl)zirconium dichloride, in an organic solvent, the amounts of ingredients A-D being such that each constitutes 1-50% of their combined weights, and the amount of ingredient E being such that it constitutes 0-20% of the combined weights of the ingredients.

REFERENCES:
patent: 4808653 (1989-02-01), Haluska et al.
patent: 4835207 (1989-05-01), Semen et al.

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