Silicic acid detergent product for microdeposition of silicic acid on textiles
CA 1102654 A · Owner: Elektrokemiska Aktiebolaget · Inventors: Karlsson, Per-Arne I.; Johansson, Hans; Sunden, Olof
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosure relates generally to the detergent art and more specifically to a silicic acid detergent product for the microdeposition of silicic acid on textiles. The product comprises essentially an adduct (hydrogen bond) compound of oligomer and/or polymer silicic acid with polyethylene oxide compounds together with alkali, M2O, where M is selected from the group consisting of Na, K, Li and quaternary ammonium radical, amounting to a molar ratio SiO2:M2O > 4 or preferably, 6-100, said product being physically or colloidally soluble in laundry medium inside a pH of 8-12, in which medium it serves as a microdepositor for silicic acid on laundry textiles.
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 June 9, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 1998.
- 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.