Compositions capable of concentrating and collecting oil spills and method of using them
CA 1106161 A · Owner: Ciba Specialty Chemicals Holding Inc. · Inventors: Falk, Robert A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Case 61-11527/GC 842/+, Compositions capable of concentrating and collecting Oil Spills and Method of using them. Abstract of the Disclosure Oil spills can be more effectively concentrated collected, and controlled by employing a durable rapidly, spreading, water-insoluble surface film comprised of a fluorochemical. The fluorochemical agent has a density greater than water, a solubility of less than 0.01 % in water, a spreading pressure preferably of >50 dynes/cm at <10 mg/m2, and is applied with a diluent to form a highly mobile film under actual field conditions. Useful fluorochemicals are those of the formula (Rf)nTmZr wherein, Rf is a perfluorinated aliphatic group T is a connecting, …
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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 August 4, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 4, 1998.
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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.