Laminate
US5478627A · kind A · utility
14Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1993 |
| Grant date | Dec 26, 1995 |
| Priority date | — |
| Expiry date | Aug 26, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249989
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A laminate comprising a core resin layer and a skin laminated integrally thereon is provided. The laminate has the projections, such as ribs, formed integral with the core resin layer with the same resin material as the core resin. Also, a hollow portion is formed in the inside of the resin layer near the intersection of the core resin layer and each projection. The laminate is free of sinks on the surface at its positions corresponding to the projections on the back side and has good appearance and excellent mechanical strength.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.