Patent Yard Sign in
Expired Canadian patentCanada

Process for manufacturing particulate detergent composition directly from in situ produced anionic detergent salt

CA 1324745 C · Owner: Barletta, Gualtiero · Inventors: Barletta, Gualtiero; Bianchi, Antonio

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

A particulate detergent composition, such as one comprising sodium linear higher alkylbenzene sulfonate (LAS) and bentonite, is made directly from anionic synthetic organic detergent acid by neutralizing such acid with a neutralizing agent, such as aqueous sodium hydroxide solution in a reaction vessel and directly discharging the neutralized detergent salt from the reaction vessel into an absorption zone wherein globules of the anionic detergent salt in aqueous, solution or dispersion, and particulate solid carrier particles are rapidly circulated and repeatedly brought into contact with one another to produce detergent salt - carrier composition particles or agglomerates. In preferred …

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 November 30, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended November 30, 2010.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 2, 1989
GrantedNovember 30, 1993
Term endedNovember 30, 2010
Patent numberCA 1324745 C
Classification (IPC)C11D11/00 +2 more

Timeline

Timeline From CIPO dates

1990199319961999200220052008Application filedJune 2, 1989Patent grantedNov 30, 1993Term endedNov 30, 2010

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.