Metastable silane hydrolyzates and process for their preparation

Details Metastable silane hydrolyzates and process for their preparation Metastable silane hydrolyzates and process for their preparation

1989-07-28

1991-03-12

Marquis, Melvyn I.

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...

427 58, 423325, 556452, 528 10, 528 14, 528 19, 528 39, 524773, 524770, C08K 506

Patent

active

049993976

ABSTRACT:
The present invention provides a relatively simple synthesis procedure for the formation of silane hydrolyzate compositions of the formula ##EQU1## where R is hydrogen or a methyl group, n is an integer greater than about 8, and x is a number between 0 and 2. The hydrolyzate compositions are metastable in solvent solution but become insoluble after coating on a substrate. The resins are useful as planarizing coatings for substrates such as electronic devices and can be ceramified by subjecting them to an oxidizing atmosphere at a temperature of between about 100.degree. to 1000.degree. C. to form ceramic or ceramic-like coatings on such substrates.

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Frye et al., "The Oligonieric Silsesquioxanes, (HSiO.sub.3/2).sub.n ", J. Am. Chem. Soc., 92:19 Sept. 23, 1970.
Takiguchi et al., "Preparation of Hexaphenylcyclotrisiloxane by the Reaction of Diphenyldichlorosilane with Zinc Oxide", I. Org. Chem., 25,310 (1960).

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