Polyblends of thermoplastic copolyetheresters, styrene-maleic anhydride polymers, acrylonitrile- butadiene-styrene polymers and nitrile rubbers
CA 1206669 A · Owner: Monsanto Company · Inventors: Holtrop, James S.; Dufour, Daniel L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Molding compositions are prepared from blends of (A) a thermoplastic copolyetherester elastomer; (B) a styrene maleic anhydride polymer; (C) an ABS or MBS polymer; and (D) a nitrile rubber. Component B, the styrene maleic anhydride polymer may optionally contain a termonomer such as methylmethacrylate or acrylonitrile and a rubber component.
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 June 24, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 24, 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
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.