# US 9,775,343 B2 · Microbicidal composition

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 9,775,343 B2
- Document ID: US9775343B2
- Status: Granted
- Kind: B2
- Application number: 15/026,136
- Filed: 2014-10-03
- Published: 2016-08-11
- Granted: 2017-10-03
- Earliest claimed: 2013-10-03
- Assignees: Dow Global Technologies LLC; Rohm and Haas Company
- Applicants: Dow Global Technologies LLC; Rohm and Haas Company
- Inventors: Usha Gandhi; Christine McInnis; Kiran Pareek; Paul O. Schook; Nigel G. Watson; Terry Michael Williams; Bei Yin
- Web page: https://patentgrep.com/patent/US9775343B2

## CPC

- A01N 25/30: characterised by the surfactants
- A01N 35/08: at least one of the bonds to hetero atoms is to nitrogen
- A01N 43/84: six-membered rings with one nitrogen atom and either one oxygen atom or one sulfur atom in positions 1,4
- A01N 43/88: six-membered rings with three ring hetero atoms
- A01N: PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF (preservation of food or foodstuff A23); BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES (preparations for medical, dental or toiletry purposes which kill or prevent the growth or proliferation of unwanted organisms A61K); PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS

## Abstract

A synergistic microbicidal composition having two components. The first component is a nonionic surfactant with structure: R2O(CH2CH(CH3)O)3(CH2CH2O)5H, where R2 is a mixture of C8-C14 linear alkyl groups. The second component is 2-bromo-2-nitropropane-1,3-diol. The weight ratio of the nonionic surfactant to 2-bromo-2-nitropropane-1,3-diol is from 1:0.08 to 1:0.12 or 1:0.2 to 1:1.8286.

## Claims

### Claim 1

A synergistic microbicidal composition comprising: (a) a nonionic surfactant with structure:
R2O(CH2CH(CH3)O)3(CH2CH2O)5H
where R2 is a mixture of C8-C14 linear alkyl groups; and (b) 2-bromo-2-nitropropane-1,3-diol; wherein a weight ratio of said nonionic surfactant to 2-bromo-2-nitropropane-1,3-diol is from 1:0.08 to 1:0.12 or 1:0.2 to 1:1.8286.

### Claim 2 (depends on 1)

The synergistic microbicidal composition of claim 1 in which said mixture of C8-C14 linear alkyl groups comprises from 60 to 75 wt % C8-C10 linear alkyl groups and 25 to 40 wt % C12-C14 linear alkyl groups.