Ethylene-acrylic acid type interpolymer compositions and films having increased slip and reduced block
CA 1329293 C · Owner: Rowland, Michael E. · Inventors: Rowland, Michael E.; Castello, Alfred F.; Mckinney, Osborne K.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A composition comprising in intimate admixture (a) at least one copolymer of from 2 to 35 weight percent acrylic or methacrylic acid and 98 to 65 weight percent ethylene having a melt flow volume of from 0.01 to 50 dg/min; and being preparedby interpolymerization at a reactor temperature and pressure above its two-phasetransition zone and, (b) from 0.05 to 2 percent, by weight of the composition of at, least one secondary fatty acid amide of the formula R7-CO-NH-R8 wherein R7 is a saturated alkyl group having from 11 to 25 carbon atoms and R8 is a monoolefinically unsaturated alkyl group having from 18 to 24 carbon atoms. The polymers are preferably prepared at a temperature and pressure …
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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 May 3, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 3, 2011.
- 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.