Patent Yard Sign in
Expired Canadian patentCanada

Organopolysiloxane compositions and elastomers prepared therefrom

CA 1093239 A · Owner: Wacker-Chemie Gmbh · Inventors: Matejcek, Klaus; Wohlfarth, Ernst; Kleinschwarzer, Adolf

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Diorganopolysiloxane compositions are provided which are curable at room temperatures to provide elastomers which contain glass fibers having an average length of up to 0.2 mm. In one variant the diorganopolysiloxane, has terminal hydroxyl groups and the further agent has at least 3 condensable groups or condensable atoms per molecule and in another variant the diorgano-, polysiloxane has an aliphatic unsaturated bond linked to a silicon atom via carbon in such of its terminal units, and the further agent includes an organosilicon compound having at least three Si-bonded halogen atoms per molecule, and a catalyst which promotes the addition of Si-bonded hydrogen to the aliphatic unsaturated …

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 January 6, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 6, 1998.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 14, 1976
GrantedJanuary 6, 1981
Term endedJanuary 6, 1998
Patent numberCA 1093239 A
Classification (IPC)C08L83/04 +1 more

Timeline

Timeline From CIPO dates

19771980198319861989199219951998Application filedDec 14, 1976Patent grantedJan 6, 1981Term endedJan 6, 1998

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.