STABLE INJECTABLE .beta.-CAROTENE MICELLAR SOLUTIONS AND THEIR PREPARATION
CA 1185185 A · Owner: Basf Aktiengesellschaft · Inventors: Tiefenbacher, Hubert; Schulz, Bernhard; Hoppe, Peter P.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the preparation of .beta.-carotene micellar solutions, wherein a non-ionic emulsifier which is suitable for the preparation of micellar solutions is heated at from 160 to 180°C and a total of from 20 to 30% by weight, based on the emulsifier of .beta.-carotene, is introduced in the presence of a conventional antioxidant, the hot homogeneous mixture is cooled rapidly to below 100°C by adding water, and the formulation is brought to the desired concentration of from 3 to 6% by weight by adding further water, and the .beta.-carotene micellar solutions obtained by this process. The non-ionic emulsifiers used in this process have an HLB value of from 12 to 16, and are in particular …
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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 9, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended April 9, 2002.
- 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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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.