Additive for a detergent formulation, detergent formulation comprising such an additive and use of said formation for cleaning bottles
CA 2293760 A1 · Owner: Baars, Edwin · Inventors: Heinhuis-Walther, Johanna Maria C.; Buining, Ton; Baars, Edwin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An additive for a detergent formulation is described comprising a sequestrant , having formula (I) wherein: X = a COOH group or an alkyl chain comprising a COOH group; Y = an H atom; Z = an H atom a C1-C30 alkyl group or a C2-C30 , alkenyl group; and further comprising a nonionic surfactant and/or a hydrotrope. Preferably, said sequestrant is selected from the group of nitrilo triacetic acid (NTA), .beta.-alanine diacetic acid (.beta.-ADA)) methyl , glycine diacetic acid (MGDA), serine diacetic acid (SDA) and ethyl glycine diacetic acid (EGDA). Furthermore, the use of a detergent formulation containing said additive for cleaning bottles in particular returnable , plastic bottles such …
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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 June 10, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 10, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 10, 2020.
- 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
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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.