Bleaching composition comprising substantially linear nonionic surfactants
CA 2358867 A1 · Owner: Esposito, Andrea · Inventors: Del Duca, Valerio; Leone, Milena; Esposito, Andrea
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a liquid bleaching composition comprising a bleach and a substantially linear nonionic sufactant whereby said , substantially linear nonionic surfactant has the general formula: R-(A)x-(B)y- (c)z-O-R1, wherein: R is an even numbered C6 to C22 alkyl chain or a mixture thereof, containing at least 90 % linear alkyl chains; A is an ethoxy unit; B is a butoxy unit; C is a propoxy unit; x y and z are independent integers of , from 0 to 20; the sum of x+y+z is at least 1; and R1 is H a C6 to C22 alkly , chain or a C6 to C28 alkyl benzene chain. Furthermore the present invention , relates to the use of said substantially linear nonionic surfactant in a fabric …
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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
- Filed January 20, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 20, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 20, 2022.
- 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.