Process for separating sodium lauryl sulfate (sls) from a sls/protein complex
CA 1052774 A · Owner: Stauffer Chemical Company · Inventors: Concilio-Nolan, Mary C.; Chang, Pei K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Reaction of sodium lauryl sulfate with whey proteins forms a sodium lauryl sulfate-whey protein complex. Treatment of the complex with base to bring it to a pH of either from about 5.0 to about 6.5 at a solids content of from about 5% to about 30% by weight, and at a temperature of from about 0°C. to about 5°C. or a pH of from about 11 to about 13 at a solids content of from about 2.5% to about 10% and a temperature of from about 0°C. to about 5°C. produces a precipitate and supernatant solution. The supernatant can be used to make an egg white substitute, after reduction of its sodium lauryl sulfate content, whereas the precipitate is high in sodium lauryl sulfate and can be recycled for …
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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 April 17, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 17, 1996.
- 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
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.