Process for comminuting cellulose ethers
US5488104A · kind A · utility
23Cited by
20References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1994 |
| Grant date | Jan 30, 1996 |
| Priority date | — |
| Expiry date | Jun 30, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2301/28
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
This invention is a process for comminuting a cellulose ether which comprises extruding a hydrated cellulose ether through a plurality of orifices, each orifice having a cross-sectional area of from about 7.5.times.10.sup.-9 m.sup.2 to about 1.times.10.sup.-6 m.sup.2, to form an elongated extrudate, and then cutting the elongated extrudate to desired length. The high density cellulose ether product is typically cold water dispersible, non-dusty, and free flowing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.