CA2164832A1 - Polyaspartic acid manufacture - Google Patents
Polyaspartic acid manufactureInfo
- Publication number
- CA2164832A1 CA2164832A1 CA002164832A CA2164832A CA2164832A1 CA 2164832 A1 CA2164832 A1 CA 2164832A1 CA 002164832 A CA002164832 A CA 002164832A CA 2164832 A CA2164832 A CA 2164832A CA 2164832 A1 CA2164832 A1 CA 2164832A1
- Authority
- CA
- Canada
- Prior art keywords
- polyaspartic acid
- acid manufacture
- acid
- produced
- polyaspartic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920000805 Polyaspartic acid Polymers 0.000 title abstract 2
- 108010064470 polyaspartate Proteins 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- CKLJMWTZIZZHCS-UHFFFAOYSA-N D-OH-Asp Natural products OC(=O)C(N)CC(O)=O CKLJMWTZIZZHCS-UHFFFAOYSA-N 0.000 abstract 1
- CKLJMWTZIZZHCS-UWTATZPHSA-N L-Aspartic acid Natural products OC(=O)[C@H](N)CC(O)=O CKLJMWTZIZZHCS-UWTATZPHSA-N 0.000 abstract 1
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 229960005261 aspartic acid Drugs 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000007062 hydrolysis Effects 0.000 abstract 1
- 238000006460 hydrolysis reaction Methods 0.000 abstract 1
- 238000012643 polycondensation polymerization Methods 0.000 abstract 1
Landscapes
- Polyamides (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
Polyaspartic acid having a weight average molecular weight of 1000 to 5000 is produced by hydrolysis of anhydropolyaspartic acid that has been produced by condensation polymerization of L-aspartic acid.
Conversion in excess of 80 percent is achievable utilizing "temperature vs. time" profiles.
Conversion in excess of 80 percent is achievable utilizing "temperature vs. time" profiles.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/080,562 US5315010A (en) | 1991-02-22 | 1993-06-21 | Polyaspartic acid manufacture |
| US080,562 | 1993-06-21 | ||
| PCT/US1994/007225 WO1995000479A1 (en) | 1993-06-21 | 1994-06-21 | Polyaspartic acid manufacture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2164832A1 true CA2164832A1 (en) | 1995-01-05 |
| CA2164832C CA2164832C (en) | 2005-12-06 |
Family
ID=35519635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002164832A Expired - Lifetime CA2164832C (en) | 1993-06-21 | 1994-06-21 | Polyaspartic acid manufacture |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2164832C (en) |
-
1994
- 1994-06-21 CA CA002164832A patent/CA2164832C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2164832C (en) | 2005-12-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20140623 |