Process for recovering purified albumin from blood plasma
CA 1111023 A · Owner: Nordisk Insulinlaboratorium · Inventors: HANSEN, JõRGEN F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Purified albumin is recovered from human blood plasma without denaturing the globulins present therein by mixing the, blood plasma with 150 to 300 g polyethylene glycol (PEG) per liter of liquid mixture and adjusting the mixture to a pH of 6 to 7 for precipitating fibrinogen and globulins while forming a supernatant containing albumin. The supernatant is then separated from the formed precipitate, and the pH of the supernatant is adjusted to a pH of 4.5 to 5.3 for precipitating albumin. The albumin is redissolved with entrained PEG in an aqueous medium, the resulting albumin solution is subjected to thermocoagulation at 50 to 65°C and a pH of 4.6 to 5.0 in the presence of a stabilizing …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted October 20, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 1998.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.