Cross-linked copolymers as vibration damping material
CA 1062843 A · Owner: Hoechst Aktiengesellschaft · Inventors: Rauterkus, Karl-Josef; Rinno, Helmut; Mondt, Josef
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Cross-linked copolymers are obtained by free radical Copolymerization of ethylenically unsaturated monomers in the presence of a cross-linking agent and a dissolved polymer. These copolymers have valuable sound-deadening properties and are applied to metallic substrates as vibration damping materials.
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 September 18, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 18, 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.