Resin-impregnated fibre composite materials and a process for their manufacture
US4451585A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 9, 1982 |
| Grant date | May 29, 1984 |
| Priority date | — |
| Expiry date | Jun 9, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J9/32
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for producing a fibre composite material, which comprises glass- and/or mineral fibres, expanded microspheres and a curable resin. In the method a melt of glass or mineral is prepared and the melt is converted to discrete fibres by means of nozzles. A water-based solution or dispersion of a thermosetting resin is applied to the fibres, which solution or dispersion contains microspheres. The obtained material is collected and the microspheres are brought to expand before or after the collecting. The invention also relates to a final treatment of the obtained material in which the material is pressed or formed and brought to set to the C-stage. The invention also relates to the products obtained by the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.