Method of fabricating composite products
US4729807A · kind A · utility
20Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 1985 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Feb 28, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a method of forming composite products of two incompatible plastics or other materials by extruding a first stream of plastic through a die to form a profile and coextruding another stream on the surface thereof which is fusible with the first plastic and is impregnated with foreign matter and causing, by means of high heat, pressure drop or shear stress, a rupture of the layer to form a pattern of irregular cavities and projections to which a coating can be applied which will invade the cavities and surround the projections to bond with the extruded profile.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.