Process for producing pellets of soft copolymers
US10100158B2 · kind B2 · utility
3Cited by
2References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2015 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Nov 19, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2323/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention deals with a process for producing pellets from olefin copolymers. The process comprises: (i) melting the olefin copolymer in an extruder; (ii) extruding the molten olefin copolymer through a die plate into a pellet water bath in a pelletizer thereby producing strands of the olefin copolymer; (iii) cutting the strands of the olefin copolymer in the pelletizer into pellets; and (iv) drying the pellets. The pellet water in the pelletizer contains from 0.1 to 5% by weight of a colloidal silica based on the weight of the water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.