Cloth-like, liquid impervious composite material and method for making the same
CA 1280682 C · Owner: Kimberly-Clark Corporation · Inventors: Van Gompel, Paul T.; Yaccarino, Karen M. B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The cloth-like liquid impervious composite material is made by applying a nonwoven layer of loose unadhered fibers, to a liquid impervious film and then point-bonding the, nonwoven layer to the liquid impervious film to form discrete points of adhesion between the fibers and film. Because the fibers in the nonwoven layer are loose and unadhered when applied to the film, the resulting composite material has improved loft and softness. Also when the, composite material is elasticized by an elastic material it, gathers into a more pleasing appearance.
Read the whole patent
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 February 26, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 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.