Synergistic Mixtures of O-Phenylphenol and Dazomet

a technology of ophenylphenol and dazomet, which is applied in the direction of amide active ingredients, heterocyclic compound active ingredients, treatment water, etc., can solve the problems of microbiological growths that can have dire consequences, biofilms may develop into thick gelatinous like masses, and economic loss

Inactive Publication Date: 2007-08-30
VERICHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Microbiological growth can cause contamination of products that requires the use of preservatives, as well as process waters, where Antimicrobials are required to prevent contamination.
Failure to preserve these products adequately will result in spoilage and loss of the materials to be preserved and will result in an economic loss.
Similarly, microbiological growths can have dire consequences if process waters are not adequately treated.
Process waters are of concern because when fouled with biofilms that develop from the indigenous microbes present, biofilms may develop into thick gelatinous like masses.
Slime will interfere with the process resulting in a loss of heat transfer, corrosion and fouling.
Slime also detracts from systems cleanliness.

Method used

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  • Synergistic Mixtures of O-Phenylphenol and Dazomet

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0031] This example shows the synergistic activity between o-phenylphenol and bis (Trichloromethyl) sulfone under a concurrent feed strategy, against article bacterial consortium in synthetic white water at pH 5.5 and 8.0.

Sulfone* & NaOPP @ pH 5.5ppmppmSynergySulfoneNaOPPRatio Sulfone:NaOPPIndex1.1540.00100:0  1.000.5043.911.0:7.8 0.670.2367.811.0:33.00.390.17015.631.0:92.00.530.15631.25 1.0:200.80.730.00056.78 0:1001.00

[0032]

Sulfone* & NaOPP @ pH 8.0PpmppmSynergySulfoneNaOPPRatio Sulfone:NaOPPIndex1.340.00100:0  1.000.773.911.0:5.0 0.670.547.811.0:14.40.560.4515.631.0:34.50.610.3531.251.0:89.40.760.0562.50 1.0:1230.40.970.0067.8 0:1001.00

*Sulfone - Bis(trichlormethyl)sulfone

example 2

[0033] This example shows the synergistic activity between o-phenylphenol and 1-Bromo-3-chloro-5,5-dimethylhydantion under a concurrent feed strategy, against article bacterial consortium in synthetic white water at pH 5.5 and 8.0.

BCDMH* & NaOPP @ pH 5.5ppmppmSynergyBCDMHNaOPPRatio BCDMH:NaOPPIndex14.600.00100:0 1.009.103.911.0:0.40.679.887.811.0:0.80.7810.9815.631.0:1.40.9510.8631.251.0:2.91.146.2567.52 1.0:10.81.295.6262.50 1.0:11.11.183.1382.87 1.0:26.51.271.5683.18 1.0:53.21.170.7880.42 1.0:102.91.080.3981.38 1.0:208.31.070.2076.21 1.0:390.20.990.1076.13 1.0:779.60.980.0078.40 0:1001.00

[0034]

BCDMH* & NaOPP @ pH 8.0ppmppmSynergyBCDMHNaOPPRatio BCDMH:NaOPPIndex34.370.00100:0 1.0011.513.911.0:0.30.3713.227.811.0:0.60.4515.9215.631.0:1.00.5820.7431.251.0:1.50.8520.9462.501.0:3.01.0912.5090.711.0:7.31.076.25116.26 1.0:18.61.083.13127.26 1.0:40.71.081.56136.91 1.0:87.61.100.78144.84 1.0:185.41.140.39137.29 1.0:351.51.070.20136.00 1.0:696.31.060.10131.07  1.0:1342.21.023.13127.26 0:1...

example 3

[0035] This example shows the synergistic activity between o-phenylphenol and 1,2-Benzisothiazolin-3-one under a concurrent feed strategy, against article bacterial consortium in synthetic white water at pH 5.5 and 8.0.

BIT* & NaOPP @ pH 5.5ppmppmSynergyBITNaOPPRatio BIT:NaOPPIndex1.460.00100:0   1.001.143.911.0:3.4  0.831.157.811.0:6.8  0.881.1515.631.0:13.6 0.971.0031.251.0:31.2 1.050.6353.371.0:85.4 1.060.4962.501.0:128.5 1.070.3173.111.0:233.9 1.070.1675.811.0:485.2 1.000.0878.911.0:1010.10.980.0475.981.0:1945.10.920.0281.731.0:4184.80.960.0182.291.0:8426.50.960.0084.960:100 1.00

[0036]

BIT* & NaOPP @ pH 8.0ppmppmSynergyBITNaOPPRatio BIT:NaOPPIndex2.860.00100:0 1.002.773.911.0:1.41.012.877.811.1:2.71.072.8815.631.0:5.41.142.4031.25 1.0:13.01.112.2862.50 1.0:27.41.340.63118.64 1.0:189.81.240.31117.62 1.0:376.41.120.16124.59 1.0:797.41.130.08121.17  1.0:1551.01.070.04118.13  1.0:3024.01.030.02120.98  1.0:6194.31.050.01117.97  1.0:12080.41.020.00116.41 0:1001.00

*BIT—1,2-Benzisothiaz...

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Abstract

Ortho phenylphenol acts synergistically with various other antimicrobial compounds commonly used in industrial applications.

Description

RELATED APPLICATION [0001] This application is a continuation of U.S. application Ser. No. 10 / 345,798, filed Jan. 16, 2003, which claims the benefit of U.S. Provisional Application No. 60 / 349,636 filed Jan. 17, 2002. Application Ser. Nos. 10 / 345,798 and 60 / 349,636 are incorporated by reference.TECHNICAL FIELD [0002] This invention relates to synergistic mixtures of o-phenylphenol and / or its sodium salt with tetrahydro-3,5-dimethyl-2H-1,3,5-thiadiazine-2-thione commonly used in cement admixtures and slurries. BACKGROUND OF THE INVENTION [0003] O-phenylphenol and Sodium orthophenylphenate (separately or collectively sometimes herein known as “OPP”, orthophenylphenol or o-phenylphenol) are used extensively as antimicrobial agents in various industrial applications such as preservation of various materials including paints, adhesives etc. as well as to control unwanted microorganisms found in various process waters such as cooling water, paper mills and petroleum production. [0004] Micr...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C04B16/00A61K31/54A61K31/045A61K31/05A61K31/155A61K31/17A61K31/41A61K31/53
CPCA61K31/045A61K31/05A61K31/155A61K31/17A61K31/41A61K31/53C02F1/50C02F2103/023A61K2300/00
Inventor CARLSON, PAUL E.NEHUS, H. EDWINMARTIN, JODI L.
Owner VERICHEM
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