Pourable particles of normally tacky plastic materials and process for their preparation
US5041251A · kind A · utility
43Cited by
10References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1989 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Jul 27, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2793/009
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Pourable particles of normally soft and tacky plastic materials are formed by extruding the molten plastic material into contact with a cooling fluid containing a non-sticky material that is compatible with the plastic material, cutting the plastic material into particles, separating these particles from the cooling fluid, and contacting these particles with a second compatible non-sticky material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.