Polymeric binder for intumescent coating
CA 1322069 C · Owner: Emmons, William David · Inventors: Sperry, Peter Reeves; Emmons, William David; Lee, Der-Jiun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
POLYMERIC BINDER FOR INTUMESCENT COATINGS DN 87-28 MSA:vjc, ABSTRACT OF DISCLOSURE A polymeric binder containing thermally labile groups is provided for use in intumescent coatings. This binder permits the formulation of coatings possessing improved fire retardance and intumescing properties at reduced concentrations of intumescent chemicals. The preferred polymeric binders are thermally labile (meth)acrylic copolymers prepared with low levels of copolymerizable aldehydes such as methacrolein.
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 September 7, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 7, 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.