Biocidal coating

A biocide and composition technology, applied in the direction of coating, biocide, paint containing biocide, etc., can solve the problems of increasing cost, expensive, affecting heat exchange efficiency, etc.

Inactive Publication Date: 2014-09-03
NOVAPHARM RES AUSTRALIA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The size reduction operation is both time-intensive and energy-intensive, and thus expensive
The ground pigment then also needs to be dispersed in the composition, which is also an expensive operation and adds further to the cost
In addition, this addition significantly increases the thickness of the coating, thus adversely affecting the heat transfer performance

Method used

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  • Biocidal coating
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0208] Material

[0209] The following commercially available products were used in the experiments below:

[0210] AN119: Poly(vinyl methyl ether-co-maleic anhydride), MW about 216000, available from International Specialty Polymers (ISP)

[0211] AN139: Poly(vinyl methyl ether-co-maleic anhydride), MW about 10800000, available from International Specialty Polymers (ISP)

[0212] S95: Poly(vinylmethyl ether-co-maleic acid), about MW 216000, available from International Specialty Polymers (ISP)

[0213] MB80: Alkyl (C1450%, C1610%, C1240%) dimethyl benzyl ammonium chloride

[0214] 2280: Didecyldimethylammonium chloride, 80% in 1:1 ethanol / water, available from Lonza Inc.

[0215] N300: Nonylphenol ethoxylate, available from Huntsman Corp.

[0216] N30: Nonylphenol ethoxylate, available from Huntsman Corp.

[0217] JAQ: N-Alkyl (C 14 95%, C 16 2%, C 12 3%) dimethyl ammonium chloride, available from Lonza Inc.

[0218] 940: Cross-linked polyacrylate p...

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Abstract

The invention relates to a biocidal composition comprising a carboxyl functional polymer and biocidal quaternary ammonium ions. The polymer is a copolymer comprising maleic acid monomer units and / or anions thereof and vinyl ether comonomer units. The composition may be in the form of a film on a surface or in the form of a solution.

Description

technical field [0001] The present invention relates to biocidal coatings and methods for their preparation. [0002] priority [0003] This application claims priority to Australian Provisional Patent Application No. AU2011903763, the entire contents of which are hereby incorporated by cross reference. Background of the invention [0004] Air conditioner condensers, such as those used in automobiles, are typically manufactured with closely placed aluminum heat exchange fins for efficient heat transfer with the air. Moisture from cooling air passing over the surface of the fins condenses on the surface and in use water droplets are often left on or flow over the surface of the condenser. Such conditions are ideal for the growth of biofilm on the surface and the colonization of other microorganisms on the surface, and it is common that the contact of the air flow with the surface and its Heat transfer efficiency, which results in a loss of efficiency and may eventually ren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N25/10A01N33/12C09D5/16C09D173/02C08F216/16
CPCC09D5/1668C08K5/17A01N33/12C09D173/02C08F216/16C09D135/08A01N25/24C08L29/06C09D5/1625C09D5/14C09D5/1606A01N25/02A01N2300/00
Inventor 史蒂文·克里茨勒迈克尔·克里茨勒
Owner NOVAPHARM RES AUSTRALIA
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