Inorganic fibrous material as reinforcement for composite materials and process for production thereof
US4770935A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1987 |
| Grant date | Sep 13, 1988 |
| Priority date | — |
| Expiry date | Jul 31, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An inorganic fibrous material for reinforcing composite materials, said fibrous material composed of a central layer and a surface layer, wherein PA0 the surface layer is formed of an inorganic material composed of PA1 (i) an amorphous material consisting substantially of Si, M, C and O, wherein M is Ti or Zr, or PA1 (ii) an aggregate consisting substantially of ultrafine crystalline particles of beta-SiC, MC, a solid solution of beta-SiC and MC, and MC.sub.1-x having a particle diameter of not more than 500 .ANG. wherein M is as defined above and x is a number represented by 0<x<1, and optionally containing amorphous SiO.sub.2 and MO.sub.2, or PA1 (iii) a mixture of the amorphous material (i) and the aggregate (2), and PA0 the central layer is formed of an inorganic material other than said inorganic material; and a process for production thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.