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US 5,188,757 AGranted
Precursor compositions for conversion to boron nitride
AssigneeUniversity of New Mexico
InventorsRobert T. Paine, Jr., Chaitanya K. Narula, Riley O. Schaeffer
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Abstract
The disclosure is directed to polymeric B-aminoborazene compounds suitable for pyrolytic conversion to boron nitride. The B-aminoborazine compounds are preferably mixed with an organic solvent and a cross-linking agent to form a polymeric gel. The polymeric gel is then pyrolized to form boron nitride. The polymeric gel is useful to coat various forms and materials.
Claims22
A composition suitable for pyrolytic conversion to boron nitride, the composition comprising:
- a B-aminoborazine compound having a general formula selected from the group consisting of (ClB).sub.2 (BNR.sub.2)(NH).sub.3, (ClB).sub.2 [BN(H)R](NH).sub.3 and (ClB).sub.2 [BN(SiR.sub.3).sub.2 ](NH).sub.3, and wherein each R is a member selected from the group consisting of alkyl groups and aryl groups;
- a solvent;
- and
- a cross-linking agent.
1 more element
Dependencies are inferred from the claim text.