Antifreezing agent
US4565643A · kind A · utility
9Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1984 |
| Grant date | Jan 21, 1986 |
| Priority date | — |
| Expiry date | Sep 7, 2004 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K5/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An antifreezing agent used in an aqueous medium system comprising a protein which is enzymatically modified with covalent incorporation of an amino acid ester. The antifreezing agent can keep an unfrozen state of the system down to -10.degree. C., and does not exert any harmful effect to biological bodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.