Method for measuring the thermal stability of a succinic acid crystal intended for the production of polymers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 3, 2017
Grant Date -
Jan 1, 2015
app pub date -
Mar 1, 2013
filing date -
Mar 2, 2012
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method for measuring the thermal stability of succinic acid includes the following steps: 1) preparing a succinic acid crystal powder having less than 1% residual water content; 2) placing 10 g of the crystal powder in an oven at 220° C. for 2 hours; 3) pulverizing and sieving the crystal powder processed in this way, such that the particle size distribution thereof is between 0 and 10%, and preferably between 4 and 6% for particles larger than 500 μm in size, between 20 and 40%, and preferably between 25 and 35% for particles between 200 and 500 μm in size, between 50 and 75% and preferably between 55 and 70% for particles smaller than 200 μm in size; and 4) measuring the color, in a spectrocolorimeter, of the pulverized and sieved powder and determining the average value of the yellow (index “b”).
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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