Method for continuously applying a polyurethane coating
CA 1065697 A · Owner: Congoleum Corporation · Inventors: Piacente, Ny N.; Ehrenfeld, Frank E. (Jr.)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method is disclosed for continuously applying a resinous wear-resistance surface of finish coating to a traveling web substrate which comprises moving the web into a free hanging loop, continuously feeding the liquid resin coating composition into the loop at a rate so as to maintain at least a slight overflow of the composition at the sides of the loop with-, drawing the web upwardly from the loop with a thin coating of the resin applied thereto, and then heating the coated web for drying the coating.
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 November 6, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 6, 1996.
- 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.