Method and apparatus for the preparation of foamed thermoplastic articles
US4693856A · kind A · utility
31Cited by
4References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1985 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Apr 22, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S264/18
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Expandible synthetic resinous particles are molded by injecting heated air generally centrally into the mold cavity by means of a probe, withdrawing the probe and heating the surface of the mold. Low densities and rapid cycle times are obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.