Boron ceramics from carboralated diacetylene polymers
US4946919A · kind A · utility
17Cited by
12References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 18, 1988 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Nov 18, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/486
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Boron-containing ceramics are formed from organoboron preceramic polymers which are carboralated acetylenic polymers. The polymers can be formed by carboralating acetylenic or diacetylenic diols and condensing the diols to form carboralated polyesters. In an alternative process, polydiacetylene formed by the polymerization of diacetylene monomers having conjugated triple bonds are carboralated subsequent to polymerization. A process for obtaining readily soluble polydiacetylenes comprises heating a diacetylene diol in a high boiling solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.