Stable emulsion polymers and methods of preparing same
CA 1339325 C · Owner: Morgan, Lee W. · Inventors: Jensen, Dennis P.; Esser, Richard J.; Morgan, Lee W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for forming stable emusion polymers by forming a two stage polymer latex using emulsion polymerization conditions the first stage being a low molecular weigh hydrophilic polymer and the second stage being a hydrophobic polymer and adjusting the pH of the latex to disolve the first stage polymer.
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 19, 1997. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 19, 2014.
- 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.