Encapsulation of volatile liquids
CA 1190477 A · Owner: Unilever Plc · Inventors: Johnson, Richard S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention provides a process for the encapsulation of volatile liquids which can be natural or synthetic flavouring oils or perfumes in carriers which, are soluble in water. The encapsulates provided by this invention are prepared by spraying an emulsion comprising the carrier solution and the volatile liquid onto particles in a fluidised bed. The invention also provides detergent compositions and foodstuffs containing encapsulates of perfumes and flavours respectively.
Read the whole patent
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 July 16, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 16, 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
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.