Hydrophobically modified polymer formulations
CA 2473731 A1 · Owner: National Starch And Chemical Investment Holding Corporation · Inventors: Crossman, Martin; Rodrigues, Klein A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A single-dose detergent formulation having a hydrophobically modified polymer and useful for either laundry or auto dishwashing applications is presented. The polymer consists of a hydrophilic backbone to which a hydrophobic moiety has been added by means of at least one hydrophobic monomer chain transfer , agent, or surfactant. The hydrophobically modified polymer is soluble in nonaqueous solvents, and useful in sachets or pouches for single-dose applications. The polymer also inhibits the corrosion of aluminum and is , therefore useful in applications such as cleaning and deicing or in a metal-, working fluid.
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
- Filed January 14, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 2025.
- 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.