Determining the biodegradability of iminodiacetic acid derivatives
US5606512A · kind A · utility
3Cited by
16References
3Claims
0Family size
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Inventor
Key dates
| Filing date | Jul 27, 1994 |
| Grant date | Feb 25, 1997 |
| Priority date | — |
| Expiry date | Jul 27, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG16B15/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Chelants represented by Formula 1b: ##STR1## are determined to be biodegradable when Distance A is from about 3.8.times.10.sup.-10 to about 4.6.times.10.sup.-10 m, Distance B is from about 5.1.times.10.sup.-10 to about 5.9.times.10.sup.-10 m, and Distance C is from about 4.3 to about 6.7.times.10.sup.-10 m.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.