Process for converting polymer solutions into granules
US4568418A · kind A · utility
13Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 1982 |
| Grant date | Feb 4, 1986 |
| Priority date | — |
| Expiry date | Nov 22, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S159/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Thermoplastic polymer solutions in organic solvents are converted to granules of relatively uniform sizes and a narrow distribution range by passing the polymer solution through a jet nozzle to form a high velocity stream, injecting super heated steam into the high velocity stream to form a suspension of fine polymer particulates in a gas stream, passing the particulates into a heated agglomeration tube having a series of adjoining circular turns of at least 180.degree. wherein the particulates are substantially completely agglomerated into granules and the granules are recovered from the gas stream.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.