Crystalline type-a zeolite powder iv
CA 1082163 A · Owner: Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler · Inventors: Parr, Ehrfried; Roebke, Wolfgang; Kneitel, Dieter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a crystalline type-A zeolite powder having the composition1.0 ? 0.2 M2/nO : Al2O3 : 1.85 ? 0.5 SiO2 ? Y H2O. wherein M represents a metal cation n its, valency and y a value of up to 6 and containing 50% by weight of, particles of a size below a maximum of 4.9 µm as well as having the following particle spectrum, fraction proportion (µm) (% by weight), < 3 10 to 60, < 5 55 to 95 <10 93 to 99, <15 96 to 100, The zeolitic sieve is useful as a phosphate substitute in washing,rinsing and cleansing agents.
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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 July 22, 1980. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 22, 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.