Composition comprising polymers of but-1-ene and propylene
CA 1340287 C · Owner: Hwo, Charles Chiu Hsiung · Inventors: Hwo, Charles Chiu Hsiung
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition is disclosed comprising 10% or less by weight of a low molecular weight, isotactic but-1-ene polymer having a melt index of from 50 to 1000 and at least, about 90% by weight of a propylene polymer. Molded articles, sheets, films, fibers and laminates prepared from the composition are also disclosed.
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 December 22, 1998. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 2015.
- 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.