Lldpe of improved transparency
CA 1263985 C · Owner: Milliken Research Corporation · Inventors: Mahaffey, Robert Linn, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A polyolefin plastic composition suitable as a packing material and container material for cosmetics and food stuffs is provided having improved transparency which comprises:, a) a major portion of a linear low density, polyethylene polymer;, b) a di-acetal of sorbitol and an aromatic aldehyde in an amount sufficient to improve transparency characteristics; and, c) a di-acetal decomposition inhibitor in an amount sufficient to inhibit decomposition of said di-acetal.
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 19, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 19, 2006.
- 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.