Process for forming copolymer particles
US4547329A · kind A · utility
9Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1983 |
| Grant date | Oct 15, 1985 |
| Priority date | — |
| Expiry date | Oct 31, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2329/04
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a process for the formation of olefin-vinyl alcohol copolymer pellets which comprises mixing particles of the copolymer with water to obtain a wet cake containing about 20-70% solids by weight to thereby obtain a plasticized mass of the copolymer, thereafter extruding the copolymer at a temperature of about 5.degree.-7.degree. C. below the melting point of the mass through a nozzle to form a rod, and dividing the rod into individual pellets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.