Composite pigments and process for their preparation
CA 1189654 A · Owner: Montefluos S.P.A. · Inventors: Balducci, Luigi; Paffoni, Camillo; Bottaccio, Giorgio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There are described composite ternary organic-inorganic pigments, substantially consisting of a binary inorganic titanium dioxide/aluminium hydroxide component in an, amount of from 70% to 95% by weight the remaining, organic component in an amount of from 5% to 30% by weight consisting of an organic dye selected from azoic and quinophthalonic compounds containing in their structure at least one carboxylic and/or sulphonic substantially salified, acid function. There is also described a process for the preparation of such pigments. Such pigments may suitably find application in varnishing products, air hardening and stove-baked enamels in, the pigmentation of plastics materials in inks, and …
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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 2, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 2, 2002.
- 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.