Method for producing chip- or fibre-board
CA 1253657 A · Owner: Desowag Materialschutz Gmbh · Inventors: Seepe, Detlef; Metzner, Wolfgang; Osterloff, Eberhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method for producing chip- or fibre-board a, fluid concentrate is added to at least one component of the raw materials used to produce the said chip- and/or fibreboard. These raw materials comprise a cellulosic material (eg wood chips) and a bonding agent preferably in a glue bath. The fluid concentrate is preferably added to the organo-chemical bonding agents, or to the glue-bath containing the bonding agent. The fluid concentrate consists of specific parts by weight of boric acid and a water-soluble compound, or a water-soluble mixture of compounds, containing at least one alcohol preferably a, primary alcohol, and at least one water-soluble aliphatic amine or polyamine and/or an …
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 9, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 9, 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.