Granulate of alkali metal aluminum silicate and pentasodium triphosphate, and process for making it
CA 1161416 A · Owner: Hoechst Aktiengesellschaft · Inventors: Adrian, Renate; Wasel-Nielen, Horst-Dieter; Kandler, Joachim
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosure relates to a granulate with a particle size essentially of about 0.2 to 2 mm consisting of a) about 2 to 95 weight % of a partially or completely hydrated pentasodium triphosphate, b) less than 3 weight % of an ammonium polyphosphate and the balance, c) being in the form of a water-insoluble aluminum silicate ion exchanging material.
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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 31, 1984. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 31, 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.