Fire-resistant interlayer
CA 1285673 C · Owner: Gomez, Ildefonso L. · Inventors: Gomez, Ildefonso L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An interlayer of polyvinyl butyral resin containing a compatible mixture of additives dispersed therein providing fire-resistant properties thereto said mixture comprising a plasticizer blend of a) a char-forming component, such as an organic phosphate and an oxygen sequestering agent, such as an organic phosphite, wherein the char-forming agent is the major constituent; b) a nucleating agent such as fumed silica for dispersing the fire decomposition products of the interlayer; and c) a heat reactive bonding resin such as silicone resin.
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 2, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2008.
- 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.