Method of bonding a nonwoven web
CA 1107579 A · Owner: Monsanto Company · Inventors: Silverman, Bernard; Menikheim. Virginia C.; Caviness, Alton L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a method of bonding a nonwoven web made from polyamide filaments wherein the filaments contain 0.1 to 20 weight percent of an activating agent and sufficient water that the web is unbondable at room temperature, characterized by: (a) heating the web sufficiently to make the web bondable (b) pressing, the web to autogenously bond the filaments in the web and (c) removing the activating agent from the web. The fabric will have a high tenacity together with good drape and hand.
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 August 25, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 25, 1998.
- 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.