Patent · US Active

Process for dry-grinding a polysaccharide derivative

US8973853B2 · kind B2 · utility

3Cited by

4References

16Claims

0Family size

Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Peter E. Pierini · Lake Jackson, US
Yvonne M. Goerlach-Doht · Hamburg, DE
Juergen Hermanns · Nottensdorf, DE

Key dates

Filing date	Jul 28, 2010
Grant date	Mar 10, 2015
Priority date	—
Expiry date	Nov 22, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08J2305/00
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

In a process for producing a particulate polysaccharide derivative by dry-grinding a moist polysaccharide derivative, one or more of the properties selected from median diameter, median length, bulk density and dissolution rate is controlled by controlling the temperature of the polysaccharide derivative prior to dry-grinding. Advantageously one or more of the properties selected from median diameter, median length, bulk density and dissolution rate of the particles after dry-grinding is adjusted to a first value by a first temperature of the polysaccharide derivative prior to dry-grinding and is adjusted to a second value by a second temperature.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.