Coating for fibrous carbon material in boron containing composites
US4101354A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1976 |
| Grant date | Jul 18, 1978 |
| Priority date | — |
| Expiry date | Jul 1, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3569
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Fibrous carbon material such as graphite cloth which is to be combined with a thermosetting resin and a boron containing compound to form a carbon-carbon composite is provided with a protective coating consisting of cured furfuryl alcohol copolymers. When formed into a laminate and heated to at least 2150.degree. C. to carbonize and at least partially graphitize the thermosetting resin, the boron greatly increases the interlaminar tensile strength while the coating protects the fibrous material from adverse effects of the boron which reduce the tensile strength in the directions of the fibers of the fibrous carbon material of the composite.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.