Preparing an aqueous dispersion of colloidal size particles of a water-insoluble polysaccharide derivative
US4329451A · kind A · utility
9Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 3, 1980 |
| Grant date | May 11, 1982 |
| Priority date | — |
| Expiry date | Nov 3, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08B11/20
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An aqueous dispersion of colloidal size particles of a water-insoluble, polysaccharide derivative such as ethylcellulose is prepared by grinding the water-insoluble, polysaccharide derivative in the presence of water. A suspending agent is optionally employed to increase grinding efficiency and to form a stable suspension of the colloidal size particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.