Patent · US Active

Water-soluble esterified cellulose ethers having a low degree of neutralization

US10214594B2 · kind B2 · utility

0Cited by

3References

14Claims

0Family size

Assignee

DOW GLOBAL TECHNOLOGIES LLC · US

Inventors

Oliver Petermann · Hamburg, DE
Matthias Knarr · Nienburg/Weser, DE
Robert B. Appell · Midland, US

Key dates

Filing date	Mar 8, 2016
Grant date	Feb 26, 2019
Priority date	—
Expiry date	Mar 8, 2036

Classification

Technology area (CPC A)Human Necessities
CPC primaryA23V2002/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

An esterified cellulose ether comprising aliphatic monovalent acyl groups and groups of the formula —C(O)—R—COOH, R being a divalent hydrocarbon group, has the following properties: i) the degree of neutralization of the groups —C(O)—R—COOH is not more than 0.4, ii) the total degree of ester substitution is from 0.10 to 0.70, and iii) the esterified cellulose ether has a solubility in water of at least 2.0 weight percent at 2 C.

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