PROCESS FOR PRODUCING ESTERIFIED CELLULOSE ETHERS OF VERY HIGH MOLECULAR WEIGHT AND LOW VISCOSITY
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
N/A
app pub date -
May 10, 2016
filing date -
May 15, 2015
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A modified process for producing an esterified cellulose ether is provided which comprises the stages of i) preparing a reaction mixture comprising a cellulose ether, an aliphatic monocarboxylic acid anhydride, a dicarboxylic acid anhydride, and a reaction diluent and heating the reaction mixture to a temperature of from 60° C. to 110° C. prior to, during or after mixing the components of the reaction mixture to conduct an esterification reaction, and ii) before the esterification reaction is completed, adding an additional amount of reaction diluent continuously or in one or more portions to the reaction mixture and allowing the esterification reaction to further proceed.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully