Compatibility and stability of blends of polyamide and ethylene copolymers
CA 1265284 C · Owner: The Dow Chemical Company · Inventors: Graham, Stephen L.; Kelly, Laura A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The compatibility and thermal stability of blends of polyamides and ethylene polymers containing carboxylic acid groups is improved by adding thereto an organic carboxylic acid compound, especially di-basic acids such as sebacic acid or tartaric acid. The blends may also contain free-radical scavengers and/or antioxidants. These blends are useful as heat-plasticized adhesives or bonding agents. 33,147-F
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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 January 30, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 30, 2007.
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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.