Manufacture of impact-resistant thermoplastic molding materials
CA 1056975 A · Owner: Basf Aktiengesellschaft · Inventors: Maechtle, Walter; Bootz, Ludwig; Heinz, Gerhard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Impact-resistant thermoplastic molding materials are produced by graft polymerization of styrene acrylo-, nirtils and/or methyl methacrylate onto a rubber latex. The rubber latex employed has a mean particle size of less than 0.15 µ and is agglomerated partially, before grafting by addition of an, acrylic ester polymer dispersion. The molding materials obtained exhibit an optimum combination of mechanical properties obtained be converted to shaped articles by extrusion deep-drawing or, injection molding.
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 19, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 19, 1996.
- 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.