Treatment for improving saturability in normal saturating furnish
CA 1181908 A · Owner: Westvaco Corporation · Inventors: Adams, Daniel O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improved resin saturating paper is produced by a mechanical treatment of various types of pulp resulting in twisting, kinking, curling and collapse of the fibers in the saturating furnish. The improved saturating paper has reduced bulk and decreased resin penetration time and increased resin pick up at a given Williams slowness for all the normal components of saturating furnish as well as a typical mixture of the components.
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 5, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 5, 2002.
- 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.