Absorbent members for body fluids having good wet integrity and relatively high concentrations of hydrogel-forming absorbent polymer
CA 2183965 C · Owner: Mansfield, Todd Leon · Inventors: Goldman, Stephen Allen; Walker, Trevor; Retzsch, Herbert Louis
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Absorbent members useful in the containment of body fluids such as urine that , have at least one region containing hydrogel-forming absorbent polymer in a concentration of from about 60 to 100 % by weight and providing a gelcontinuous fluid transportation zone when in a swollen state. This hydrogelforming absorbent polymer has: (a) a Saline Flow Conductivity (SFC) value of at least about 30 x 10-7 cm3 sec/g; (b) a Performance under Pressure (PUP) capacity value of at least about 23 g/g under a confining pressure of 0.7 psi (5 kPa); and (c) a basis weight of at least about 10 gsm. In addition the , region where this hydrogel-forming absorbent polymer is present has even when , subjected …
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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 February 27, 1995 and granted May 15, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 27, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 27, 2017.
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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.