Method and composition for controlling overspray in paint spray booths
CA 1319088 C · Owner: W.R. Grace & Co.-Conn. · Inventors: Curran, Thomas P.; Mitchell, David Brian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition and method for detackifying paint spray booth water containing particles from paint spray is disclosed which uses a reaction product of an aldehyde with either a urea or an aminotriazine or both, and at least one of:, (i) a hydrolyzed polyacrylamide; (ii) certain modified tannins in further combination with diallyldialkyl quaternary ammonium polymers or polymers derived by reacting certain dialkylamines with epihalohydrins.
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 June 15, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 15, 2010.
- 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.