Compositions of amorphous polyalphaolefin coatings on water-sensitive substrate
CA 2288548 A1 · Owner: Kimberly-Clark Worldwide, Inc. · Inventors: Campbell, Stephen M.; Pomplun, William Seal; Kerins, John Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a composition comprising a low-molecular weight, amorphous polyalphaolefin layer and a water-sensitive substrate layer. Preferably the polyalphaolefin comprises, either a propylene-ethylene copolymer or an ethylene-butene copolymer. Polyalphaolefin coated water-dispersible films of the present invention may be advantageously employed in the preparation of a wide variety of products designed to be contacted with aqueous fluids. Although the coated water-dispersible film of the present invention is particularly suited for personal care products the coated , water-dispersible film of the present invention may be advantageously employed in the preparation of a …
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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
- Filed November 4, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2021.
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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.