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Stabilization of complexed silver ion on soft surfaces
US2019141989A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019141989-A1 |
| Application number | US-201816174887-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 30, 2018 |
| Priority date | Nov 16, 2017 |
| Publication date | May 16, 2019 |
| Grant date | — |
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Abstract
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An aqueous composition comprising: (a) silver ion; (b) a polymer comprising at least 10 wt % polymerized units of vinylimidazole; and (c) an amino alcohol comprising at least two hydroxyl groups, comprising no carboxyl groups and having a vapor pressure at 25° C. of no more than 0.025 Pa. The molar ratio of vinylimidazole:silver is at least 3:1.
First claim
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1 . An aqueous composition comprising: (a) silver ion; (b) at least one polymer comprising at least 10 wt % polymerized units of vinylimidazole; and (c) at least one amino alcohol comprising at least two hydroxyl groups, comprising no carboxyl groups and having a vapor pressure at 25° C. of no more than 0.025 Pa; wherein a molar ratio of vinylimidazole:silver is at least 3:1. 2 . The aqueous composition of claim 1 in which the polymer comprises at least 20 wt % polymerized units of vinylimidazole. 3 . The aqueous composition of claim 2 in which the amino alcohol is aliphatic and has from four to twelve carbon atoms. 4 . The aqueous composition of claim 3 in which a molar ratio of vinylimidazole:silver is at least 3.5:1. 5 . The aqueous composition of claim 4 in which the aqueous composition comprises from 0.5 to 100 ppm silver ion. 6 . The aqueous composition of claim 5 in which the polymer further comprises from 10 to 70 wt % of a polar monomer. 7 . A method for treating soft surfaces with silver ion; said method comprising applying to said soft surface an aqueous composition comprising: (a) silver ion; (b) at least one polymer comprising at least 10 wt % polymerized units of vinylimidazole; and (c) at least one amino alcohol comprising at least two hydroxyl groups, comprising no carboxyl groups and having a vapor pressure at 25° C. of no more than 0.025 Pa; wherein a molar ratio of vinylimidazole:silver is at least 3:1. 8 . The method of claim 7 in which the polymer comprises at least 20 wt % polymerized units of vinylimidazole. 9 . The method of claim 8 in which the amino alcohol is aliphatic and has from four to twelve carbon atoms. 10 . The method of claim 9 in which the molar ratio of vinylimidazole:silver is at least 3.5:1 the aqueous composition comprises from 0.5 to 100 ppm silver ion.
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Classifications
- A01N25/10Primary
Macromolecular compounds · CPC title
Heavy metals; Compounds thereof · CPC title
- A01N25/04Primary
Dispersions, {emulsions, suspoemulsions, suspension concentrates} or gels (foams A01N25/16) · CPC title
Hydroxyalkylamines; Derivatives thereof, e.g. Kritchevsky bases · CPC title
with metals; with metal-generating compounds, e.g. metal carbonyls; Reduction of metal compounds on textiles · CPC title
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- What does patent US2019141989A1 cover?
- An aqueous composition comprising: (a) silver ion; (b) a polymer comprising at least 10 wt % polymerized units of vinylimidazole; and (c) an amino alcohol comprising at least two hydroxyl groups, comprising no carboxyl groups and having a vapor pressure at 25° C. of no more than 0.025 Pa. The molar ratio of vinylimidazole:silver is at least 3:1.
- Who is the assignee on this patent?
- Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification A01N25/10. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu May 16 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).