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US-12122884-B2 · Oct 22, 2024 · US
Antimicrobial polymer emulsion with improved color stability
US9790376B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9790376-B2 |
| Application number | US-201315101456-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 25, 2013 |
| Priority date | Dec 25, 2013 |
| Publication date | Oct 17, 2017 |
| Grant date | Oct 17, 2017 |
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Abstract
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Provided is a process for forming an antimicrobial polymer composition comprising: contacting together at least one initiator, at least one promoter, at least one reductant, and at least one monomer, under emulsion polymerization conditions to form a base polymer; and mixing with the base polymer an antimicrobial complex; wherein the at least one initiator is a peroxidic compound and the at least one reductant is an ascorbic compound.
First claim
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What is claimed is: 1. A process for forming an antimicrobial polymer composition comprising: (a) contacting together at least one initiator, at least one reductant, and at least one monomer, under emulsion polymerization conditions to form a base polymer; and (b) mixing with the base polymer an antimicrobial complex; wherein the at least one initiator is a peroxidic compound and the at least one reductant is an ascorbic compound. 2. The process of claim 1 , further comprising adding at least one promoter during the formation of the base polymer. 3. The process of claim 1 , further comprising adding an oxidant compound, wherein the amount of oxidant compound to be added, by weight percentage based on the dry weight of the antimicrobial polymer composition is from 0.004 to 10%. 4. The process of claim 1 , wherein the peroxidic compound is tert-butyl hydroperoxide. 5. The process of claim 1 , wherein the ascorbic compound is iso-ascorbic acid. 6. The process of claim 2 , wherein the at least one promoter comprises ferrous II ion. 7. The process of claim 1 , wherein the antimicrobial complex is a metal complexed with a copolymer, wherein the metal is selected from copper, silver, gold, tin, zinc and combinations thereof. 8. A process for forming an aqueous coating composition comprising: (a) dispersing a pigment in an aqueous medium, (b) combining the pigment with a antimicrobial polymer composition formed according to the process in claim 1 .
Assignees
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Classifications
Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers · CPC title
of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical · CPC title
Preservatives, e.g. antimicrobial agents · CPC title
of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical · CPC title
Redox systems · CPC title
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- What does patent US9790376B2 cover?
- Provided is a process for forming an antimicrobial polymer composition comprising: contacting together at least one initiator, at least one promoter, at least one reductant, and at least one monomer, under emulsion polymerization conditions to form a base polymer; and mixing with the base polymer an antimicrobial complex; wherein the at least one initiator is a peroxidic compound and the at lea…
- Who is the assignee on this patent?
- Rohm & Haas
- What technology area does this patent fall under?
- Primary CPC classification C08F2/22. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 17 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).