Pultruded part with localized regions of different resin materials
US5322582A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1992 |
| Grant date | Jun 21, 1994 |
| Priority date | — |
| Expiry date | Nov 27, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C70/521
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A pultruded part is formed from thermosetting resin which is carried on continuous longitudinal fiber reinforcement into a die which shapes the resin and fibers into the required transverse cross sectional shape and then acts to set the resin. Some of the fibers have applied thereto a second resin material of a different characteristic so that these fibers carry the second resin into the part at localized regions to form localized regions of the second resin extending longitudinally continuously of the part. This allows a resin of an increased strength to be used at areas of increased strength requirement, for example areas of screw fastening, screw ports, junction between two legs and in order to provide a thinner part for reduced thermal transfer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.