Ambient tempetature curing, high carbon contributing composition
CA 1339943 C · Owner: Borden, Inc. · Inventors: Iyer, Raja; Johnson, Calvin; Chandramouli, Pitchaiya
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A raw batch composition for use in making a shaped article such as a foundry shape or refractory article is disclosed. The composition comprises a mixture of an aggregate material; a phenol formaldehyde novolak resin; a phenol formaldehyde resole resin; and an ester functional curing agent. A shaped article prepared from the composition and processes for making a refractory body or foundry article are also disclosed.
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 July 7, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 7, 2015.
- 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.