Process for the preparation of foamed propylene polymer articles
US5324753A · kind A · utility
6Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 1993 |
| Grant date | Jun 28, 1994 |
| Priority date | — |
| Expiry date | Sep 10, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S521/919
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Foamed propylene polymer articles are prepared by subjecting pre-foamed beads, that consist essentially of propylene polymers having a melt strength from 5 to 40 cN, to thermoforming by sintering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.