Patent · US Expired

Boron/nitrogen preceramic polymers and boron nitride ceramic materials produced therefrom

US5096861A · kind A · utility

1Cited by
4References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 30, 1990
Grant dateMar 17, 1992
Priority date
Expiry dateMar 30, 2010

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G79/08
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Crosslinked boron/nitrogen preceramic polymers are prepared by reacting (a) admixture of a trihalogenoborane A and a compound B containing at least one dihalogenated boron atom, with (b) an amino compound C containing at least one --NH.sub.2 group; the resulting polymers are facilely pyrolyzed into boron nitride ceramic materials.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.