High modulus silicone rubber
CA 1067237 A · Owner: Dow Corning Corporation · Inventors: Marinik, James A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A silicone rubber composition prepared from a mixture of 100 parts by weight polydiorganosiloxane gum 25 to 75 parts by weight of a reinforcing silica filler 5 to 20 parts by weight of a hydroxylated diorganosilicon compound having about two hydroxyl radicals per molecule and the organic radicals are 10 to 50 percent phenyl 2 to 20, percent vinyl and the remainder methyl fiberized blast, furnace slag fibers in amounts of 20 to 80 parts by weight and 0 to 10 parts in amounts of 20 to 80 parts by weight and 0 to 10 parts by weight of alkoxy silicon compound having at least 25 weight percent alkoxy radical provides a silicone rubber when cured which has a high modulus improved tear strength …
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 November 27, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 27, 1996.
- 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.