Waterborne polyamide and their chain extension with isocyanates to form cationic waterborne polyureas dispersions
US-2017335070-A1 · Nov 23, 2017 · US
Condensation polymers for antimicrobial applications
US9580554B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9580554-B2 |
| Application number | US-201514705451-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 6, 2015 |
| Priority date | May 6, 2015 |
| Publication date | Feb 28, 2017 |
| Grant date | Feb 28, 2017 |
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Abstract
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A number of cationic antimicrobial polymers have been synthesized by a condensation polymerization in bulk. The initial polymer formed has backbone tertiary nitrogens, which are subsequently quaternized using a suitable quaternizing agent (e.g., alkyl halide). The cationic polymers include polyamides, polycarbonates, polypolyureas and polyguanidiniums having a cationic repeat unit comprising the quaternary ammonium nitrogen as a backbone nitrogen. The cationic polymers can be active against Gram-negative, Gram-positive microbes, and/or fungi.
First claim
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What is claimed is: 1. A cationic polymer, comprising: a cationic repeat unit of formula (1): wherein W′ is a single bond or a divalent linking group having a structure *—C(═O)-L′-*, wherein L′ is divalent radical comprising 1-20 carbons and L′ is linked to carbon 1, L a and L b are independent divalent hydrocarbon groups comprising 2-20 carbons, and Q′ is a divalent…
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- C08G73/0633Primary
Chemistry & Metallurgy · mapped topic
Human Necessities · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Human Necessities · mapped topic
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- What does patent US9580554B2 cover?
- A number of cationic antimicrobial polymers have been synthesized by a condensation polymerization in bulk. The initial polymer formed has backbone tertiary nitrogens, which are subsequently quaternized using a suitable quaternizing agent (e.g., alkyl halide). The cationic polymers include polyamides, polycarbonates, polypolyureas and polyguanidiniums having a cationic repeat unit comprising th…
- Who is the assignee on this patent?
- IBM, Agency Science Tech & Res
- What technology area does this patent fall under?
- Primary CPC classification C08G73/0633. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Feb 28 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).