Urine absorbing and holding material
CA 1253322 A · Owner: Mitsui Toatsu Chemicals, Inc. · Inventors: Kamio, Hideo; Itoh, Hiroshi; Nitta, Atsuhiko
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, Disclosed herein is a urine absorbing and holding material, which comprises a homopolymer of at least one monomer selected from specific N-alkyl- or N-alkylene-substituted acrylamides and methacrylamides a copolymer of two or more of the acrylamides and methacrylamides, a copolymer of said at least one monomer with one or more monomers other the the acrylamides and methacrylamides and copolymerizable therewith, and being a water-insolubilized product. By combining the urine absorbing and holding material in the form of powder, granules, flakes, fibers or a film with a fibrous material in the form of a woven fabric non-woven fabric or a flocculent material a useful, urea absorbing …
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 May 2, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 2, 2006.
- 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.