Production of polyols using distillers grains and proteins and lignin extracted from distillers grains
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 19, 2016
Grant Date -
Feb 5, 2015
app pub date -
Oct 16, 2014
filing date -
Jan 11, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Processes for the production of polyols from sources such as dried distillers grains plus solubles (DDGS) make use of a two-stage reaction scheme. In the first stage, the proteinaceous starting material is reacted with an aminating agent, such as diethanolamine (DEOA), to generate amino-amides and amides. These products are then reacted with an alkoxylating agent, preferably a substituted or unsubstituted epoxide to yield polyols. These polyols may be further reacted with isocyanates to give low-cost rigid polyurethane foams. In alternate forms, lignin may be directly converted to polyols by reaction with an alkoxylating agent, optionally followed by reaction with an isocyanate to produce polyurethanes.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2014 Application Filing Year
- C08H Class
- 101 Applications Filed
- 95 Patents Issued To-Date
- 94.06 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- C08H Class
- 0 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 19, 2027 |
