Vulcanizable rubber mixture containing an organosilane
CA 1161185 A · Owner: Degussa Aktiengesellschaft · Inventors: Wolff, Siegfried; Tan, Ewe-Hong
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Vulcanisable Rubber Mixture, A vulcanisable rubber mixture of vulcanisable halogen-free rubber or of a mixture of a halogen-free rubber with at most 80%, based on the total weight of the rubber, of a halogen-containing rubber; a silicate filler in quantities of from 1 to 250 parts by weight; an oxide of the metals zinc, magnesium and lead in quantities of from 0 to 15 parts by weight; a monobasic fatty acid containing from 12 to 24 carbon atoms in the alkyl chain, benzoic acid or salicylic acid in quantities of from 0 to 10 parts by weight; optionally sulphur and/or sulphur donors in quantities of from 0.1 to 15 parts by weight; a vulcanisation accelerator in quantities of from 0.1 to 10 …
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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 24, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 24, 2001.
- 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.