Thermosetting moulding materials
CA 1060134 A · Owner: British Industrial Plastics Limited · Inventors: Bonnington, Michael G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A thermosetting moulding compsition comprising a phenol- or furane-formaldehyde resin or, a mixture or co-condensate thereof with a urea- or melamine-formaldehyde resin, and a filler which comprises at least in part a crued, cellulose-free particulate, aminoplast material having -NH- groups capable of reacting with a composent of the resin during curing of the latter.
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 7, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 7, 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.