(co)pol ymers of hydrophobic monomers and methods of making and use thereof
US-2021108017-A1 · Apr 15, 2021 · US
Antibacterial polymer
US12534552B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12534552-B2 |
| Application number | US-202117791423-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 15, 2021 |
| Priority date | Sep 16, 2020 |
| Publication date | Jan 27, 2026 |
| Grant date | Jan 27, 2026 |
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- Title
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Abstract
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An antibacterial polymer having a molecular weight above a certain level, which is highly miscible with other polymers compared to a monomolecular type antibacterial agent and can be added during the melt extrusion process. Further the antibacterial polymer has the advantage of exhibiting excellent antibacterial properties against Gram-negative bacteria and does not elute over time.
First claim
Opening claim text (preview).
The invention claimed is: 1 . An antibacterial polymer comprising a repeating unit represented by the following Chemical Formula 1: in Chemical Formula 1, R 1 to R 3 are each independently hydrogen, or methyl, R 4 and R 5 are each independently hydrogen, an alkyl having 1 to 10 carbon atoms, or an aryl having 6 to 30 carbon atoms, L is a single bond, or an alkylene having 1 to 10 carbon atoms, and n is an integer of 50 to 1,000. 2 . The antibacterial polymer of claim 1 , wherein: R 4 and R 5 are each independently methyl, ethyl, or isopropyl. 3 . The antibacterial polymer of claim 1 , wherein: L is methylene, or ethylene. 4 . The antibacterial polymer of claim 1 , wherein: the antibacterial polymer comprises a repeating unit represented by the following Chemical Formula 1-1: in Chemical Formula 1-1, n is an integer of 50 to 1,000. 5 . The antibacterial polymer of claim 1 , wherein: the antibacterial polymer is a homopolymer including only the repeating unit represented by the Chemical Formula 1-1. 6 . The antibacterial polymer of claim 1 , wherein: the antibacterial polymer has a weight average molecular weight of 5,000 to 200,000 g/mol. 7 . The antibacterial polymer of claim 1 , wherein: the antibacterial polymer exhibits antibacterial properties against Gram-negative bacteria. 8 . The antibacterial polymer of claim 7 , wherein: the Gram-negative bacteria is Proteus mirabilis , or Escherichia coli. 9 . An antibacterial polymer composite comprising the antibacterial polymer according to claim 1 . 10 . The antibacterial polymer composite of claim 9 , wherein: the antibacterial polymer composite further comprises one or more polymers selected from the group consisting of polymethyl methacrylate (PMMA), polyethylene (PE), polypropylene (PP), polystyrene (PS), polyamide (PA), polyimide (PI), polyethylene terephthalate (PET), polyvinyl chloride (PVC), acryloyl-butadiene-styrene (ABS) and polyacrylic acid (PA).
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Classifications
Bacteria; Culture media therefor · CPC title
- C08F120/36Primary
containing oxygen in addition to the carboxy oxygen {, e.g. 2-N-morpholinoethyl (meth)acrylate or 2-isocyanatoethyl (meth)acrylate} · CPC title
Methyl esters {, e.g. methyl (meth)acrylate} · CPC title
Compositions of unspecified macromolecular compounds · CPC title
of esters containing halogen, nitrogen, sulfur, or oxygen atoms in addition to the carboxy oxygen · CPC title
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- What does patent US12534552B2 cover?
- An antibacterial polymer having a molecular weight above a certain level, which is highly miscible with other polymers compared to a monomolecular type antibacterial agent and can be added during the melt extrusion process. Further the antibacterial polymer has the advantage of exhibiting excellent antibacterial properties against Gram-negative bacteria and does not elute over time.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification C08F120/36. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 27 2026 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).