Thermoplastic materials
CA 1090945 A · Owner: Chemische Werke Huls Aktiengesellschaft · Inventors: Blumel, Harald; Zur Nedden, Klaus
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to improved thermoplastic materials and their use for the production of mouldings particularly web and sheeting, having good strength at elevated temperatures. These thermoplastic materials consist of (a) 100 parts by weight of a polyolefin rubber; (b) more than 50 but not more than 150 parts by weight of a crystalline or partly crystalline polyolefin; (c) from 30 to 150 parts by weight of a carbon black; (d) from 0 to 50 parts by weight of a bitumen; (e) from 0 to 30 parts by weight of a mineral oil; (f) from 0 to 240 parts by weight of chalk or siliceous chalk; and (g) from 0 to 10 parts by weight of a lubricant.
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 2, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 2, 1997.
- 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.