Resin-immobilized biocides
CA 1292677 C · Owner: Gribens, Joel A. · Inventors: Gribens, Joel A.; Rei, Nuno M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure For providing biocides in concentrated immobilized, form to an end use resin composition containing a primary thermoplastic resin with which the primary resin is incompatible at high concentrations solid biocide, resin concentrates are provided which immobilize high concentrations of biocide. The solid biocide resin concentrates may contain an alloy of two thermoplastic resins, one of which is substantially identical to the primary resin and one of which enables incorporation and immobilization of high concentrations of biocide in the solid biocide resin concentrates. The solid biocide resin concentrate may contain, in whole or in part a, thermoplastic copolymer …
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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 December 3, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 2008.
- 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.