# US 9,040,640 B2 · Microbial growth enhancement from a dry film additive

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- Number: US 9,040,640 B2
- Document ID: US9040640B2
- Status: Granted
- Kind: B2
- Application number: 13/926,097
- Filed: 2013-06-25
- Published: 2013-12-26
- Granted: 2015-05-26
- Earliest claimed: 2012-06-26
- Assignees: The United States of America as represented by the Secretary of the Army
- Applicants: U.S. Army Research Laboratory ATTN: RDRL-LOC-I
- Inventors: Andre A. Williams; Joshua A. Orlicki
- Web page: https://patentgrep.com/patent/US9040640B2

## CPC

- C08G 83/005: {Hyperbranched macromolecules}
- C08G 63/912: {derived from hydroxycarboxylic acids}
- C12N 1/16: Yeasts; Culture media therefor
- C12N 1/20: Bacteria; Culture media therefor
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C12N: MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA (microbiological testing media C12Q1/00)

## Abstract

A hyperbranched polymer based on one or more repeating units of an ABx type monomer, wherein A and B are functional groups and x is greater than or equal to 2, wherein A reacts with, or substantially reacts with, B, wherein B is fractionally functionlized with a plurality of functional groups comprising a first functional group comprising a C6-C30 alkyl chain attached to the repeating unit through a carbonyl group (C═O) via an ester linkage, a second functional group comprising a partially fluorinated or perfluorinated C20 alkyl chain attached to the repeating unit through a carbonyl group (C═O) via an ester linkage, and a third functional group comprising substantially one of a stabilized radical source attached to the repeating unit via a C0-C6 tether, or a 5 to 8 member chloroamide heterocycle of carbon and nitrogen that is attached to the repeating unit via a C2-C6 tether.

## Claims

### Claim 1

A hyperbranched polymer based on one or more repeating units of an ABx type monomer, wherein A and B are functional groups and x is greater than or equal to 2, and wherein the A functional group reacts with the B functional group, and wherein B is fractionally functionlized with a plurality of functional groups, wherein the plurality of functional groups comprise:
a first functional group comprising a C6-C30 alkyl chain attached to the repeating unit through a carbonyl group (C═O) via an ester linkage,
a second functional group comprising a partially fluorinated or perfluorinated C3-C20 alkyl chain attached to the repeating unit through a carbonyl group (C═O) via an ester linkage, and
a third functional group comprising a stabilized radical source attached to the repeating unit via a C0-C6 tether, wherein the stabilized radical source is a 5 or 6 member heterocycle of carbon and nitrogen, which may be substituted with alkyl groups α to the stabilized radical that sterically stabilizes an oxygen free radical, or a 5 to 8 member chloroamide heterocycle of carbon and nitrogen that is attached to the repeating unit via a C2-C6 tether.

### Claim 2 (depends on 1)

The hyperbranched polymer of claim 1, wherein the A functional group is one of an acid, an amine, a thiol, or a terminal alkyne.

### Claim 3 (depends on 1)

The hyperbranched polymer of claim 1, wherein the B functional group is one of, an alcohol, an acrylate or methacrylate, or a vinyl group, or an azide.

### Claim 4 (depends on 1)

The hyperbranched polymer of claim 1, wherein the first functional group is a lauric ester.

### Claim 5 (depends on 4)

The hyperbranched polymer of claim 4, wherein the second functional group is a perfluorinated octyl-ester.

### Claim 6 (depends on 5)

The hyperbranched polymer of claim 5, wherein the third functional group is one of a 3-(carboxy)-2,2,5,5-tetramethyl-1-pyrrolidinyloxy free radical or a dichloro-s-triazinetrione.

### Claim 7 (depends on 6)

The hyperbranched polymer of claim 6, further comprising about 10 mole % to about 30 mole % of the chain ends as lauric ester, about 10 mole % to about 25 mole % of the chain ends as perfluorinated octyl-ester, and about 50 mole % to about 75 mole % of the chain ends as 3-(carboxy)-2,2,5,5-tetramethyl-1-pyrrolidinyloxy free radical.

### Claim 8 (depends on 6)

The hyperbranched polymer of claim 6, further comprising about 10 mole % to about 30 mole % of the chain ends as lauric ester, about 10 mole % to about 25 mole % of the chain ends as perfluorinated octyl-ester group, and about 50 mole % to about 75 mole % of the chain ends as dichloro-s-triazinetrione.