Method for the production of fibrous mats
CA 1114563 A · Owner: Rockwool Aktiebolaget · Inventors: Cederqvist, Gunnar
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for the production of fibrous mat is disclosed. Artificial mineral fibres and cellulosic fibres are formed into a suspension in water. me suspension is dewatered and shaped into a sheet on a forming wire and the thus formed sheet is pressed and dried Binding means is fed to the, fibrous mat after the mat has been pre-dried to between 60 and 90% dry content, whereafter final drying is carried out. The mat of the invention is particularly useful as a carrier and support for wall and floor coverings.
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 December 22, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 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.