Polymer concrete compositions and process for the preparation thereof
CA 1263779 C · Owner: Shell Canada Limited · Inventors: Willis, Carl L.; Halper, Walter M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Room temperature atmospheric pressure polymer concrete mouldable composition comprising a thermosetting resin vinyl, monomer, catalyst, filler and a styrene-diene block copolymer and a process for the manufacture of the composition by mixing the components, moulding the mixture and allowing the moulded mixture to cure.
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 December 5, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 5, 2006.
- 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.