Particles containing active halogen bleach in a diluted core
CA 1269014 C · Owner: Lang, David John · Inventors: Chun, Kil Whan; Lang, David John; Gilbert, Allan Henry
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A bleach particle is provided whose core is an intimately dispersed agglomerated mixture of a halogen bleaching a ent, an inorganic phosphate salt and a binder with melting point 85° to 120°F. In the preferred composition there is present dichloroisocyanurate, sodium tripolyphosphate and lauric acid, respectively. These core particles have a uniform round shape, are of high strength and obtainable in good yields.
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 May 15, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 2007.
- 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.