Improving algae or micro-organism anti-fouling of materials
CA 1183627 A · Owner: Dynamit Nobel Aktiengesellschaft · Inventors: Spielau, Paul; Vohwinkel, Horst
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improving algae or micro-organism anti-fouling of materials>>, A method of reducing the susceptibility of materials to fouling by algae or microorganisms comprises treating the material with an anti-fouling agent selected from certain tin compounds. The compounds which may be used are selected from inorganic divalent tin salts, monoorgano tin compounds of formula R Sn X3 and diorgano tin compounds of formula R2SnX2 in which, R represents a hydrocarbon radical and X represents inorganic radicals or an organic radical other than hydrocarbon. The compounds are particularly suitable for treating soft PVC materials by mixing in with the moulding compositions. They are generally of lower toxicity …
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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 March 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 5, 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.