Air pore lacquers containing white pigments or white fillers
CA 1065528 A · Owner: Bayer Aktiengesellschaft · Inventors: Keifer, Siegfried; Volz, Hans G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air pore lacquer comprising a solvent a binder and, at least one additive which is a white pigment or white filler the additive having an average particle size ?zv which is at least about 10% smaller than the optimum average particle size for the same binder free from air pores. When the additives are pigments they are preferably 20 to 50% smaller and when, they are fillers preferably 20 to 80% smaller than the optimum, particle size for the air pore-free binder. Rutile and anatase TiO2 are preferred.
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 October 30, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 30, 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.