Microfiber-containing absorbent structures and absorbent articles using such structures
CA 1306855 C · Owner: Licause, Michael Francis · Inventors: Licause, Michael Francis; Seymour, Mark Donavan; Daugherty, Thomas Hugh
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 absorbent web structures suitable for incorporation into absorbent articles such as sanitary napkins, diapers, incontinent devices training pants and, the like. Such structures comprise webs of entangled melt blown microfibers which are prepared from a particular type of hydrophilic nylon copolymer. Preferred hydrophilic nylon microfiberbased webs also contain staple fibers and/or particles of hydrogel-forming polymeric gelling agent. Web structures containing hydrophilic nylon microfibers have especially desirable comfort, integrity and fluid handling characteristics.
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 September 1, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 1, 2009.
- 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.