Resilient, three dimensional film comprising a compound increasing hydrophobicity, and its use in backsheets of absorbent articles
CA 2367994 A1 · Owner: Di Cintio, Achille · Inventors: Carlucci, Giovanni; Bonelli, Guido; Di Cintio, Achille
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a resilient three dimensional web consisting of an apertured film with a resin integrated hydrophobicity increasing compound. It can be used in breathable absorbent articles like baby diapers adult incontinence articles and in particular to sanitary napkins or pantiliners to be provided with an apertured layer in the backsheet for breathability. The apertured film is made from a resilient three dimensional , web which consists of a liquid impervious polymeric film having apertures. The apertures form capillaries which are not perpendicular to the plane of the film but are disposed at a angle of less than 90~ relative to the plane of the film. The …
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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 March 29, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 29, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 29, 2022.
- 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.