Vibration dampers
CA 1296474 C · Owner: Mitsui Petrochemical Industries Ltd. · Inventors: Fujimoto, Jun; Iwata, Tadao; Yamamoto, Yohzoh
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A first vibration damper of the present invention is obtained by reacting (a) an epoxy resin comprising polyglycidyl ether of polyol or its polymer with (b) a curing agent followed by curing. Because of its specific characteristics the first, vibration damper has excellent vibration damping capacity and is excellent in mechanical strength, service durability and moldability and, moreover, is excellent in stability even when used under the circumstances of high temperature or high vacuum. Furthermore a second vibration damper of the invention is obtained by reacting (a) an epoxy resin as mentioned above with (b) a curing agent in the presence of (c) a compound having a softening point of …
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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 February 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 25, 2009.
- 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.