Process for removing foam from aqueous systems
CA 1081578 A · Owner: Ciba-Geigy Ag · Inventors: Berger, Alfred; Abel, Heinz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A process for removing foam from aqueous systems such as for example effluents or dyeing and finishing baths for treating textile materials is provided. The wetting and anti-foaming compositions used in this process contain (1) 2 to 50 percent by weight of an anionic surfactant (2) 6 to 50 percent by weight of, a water-insoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and a waterinsoluble aliphatic monoalcohol containing at least 8 carbon atoms, a reaction product of alkylene oxides and an alkylphenol a reaction product of a saturated dicarboxylic acid of 3 to 10 carbon atoms and 1,2-propylene oxide or …
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 15, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 15, 1997.
- 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.