Preparing mica-reinforced composites
US4112036A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1976 |
| Grant date | Sep 5, 1978 |
| Priority date | — |
| Expiry date | Jun 1, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2367/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Molding compounds in various forms for molding into high performance composites, are prepared from reinforcing mica platelets, preferably of high aspect ratio, and thermosetting unsaturated polyester resins. The unsaturated polyester solid and a solid vinylic monomer are blended, finely divided (e.g. to about -200 mesh), and the platelets are uniformly coated with these fine particles by dry blending. A compaction with partial coalescence of the fine resin particles in situ is carried out to densify and aggregate the coated platelets and shape the mixture. The resulting molding powders, bulk or sheet molding compounds are readily molded into the high performance composites, the platelets being substantially protected from degradation by the distributed resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.