Multilayer films comprising blends of 1 and 2 melt index linear low density polyethylene
CA 1202161 A · Owner: Union Carbide Corporation · Inventors: Craver, Joseph N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Multilayer Films Comprising Mixtures of 1 Melt Index and 2 Melt Index, Linear Low Density Polyethylene Abstract, A multilayer film suitable for use in the manufacture of garbage and trash bags wherein the first outer layer comprises a blend of a low pressure, low density polyethylene having a melt index of about 1 decigram per minute and a low pressure, low density polyethylene having a melt index of about 2 decigrams per minute. The second outer layer is made with a high pressure low, density polyethylene.
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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 March 25, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 25, 2003.
- 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
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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.