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Aqueous polymer composition

A technology of water-based polymer and composition, applied in the direction of paint and coating containing biocide, can solve the problem of yellowing and so on

Active Publication Date: 2020-05-01
DOW GLOBAL TECH LLC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these biocides may cause yellowing issues when exposed to sunlight

Method used

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  • Aqueous polymer composition
  • Aqueous polymer composition
  • Aqueous polymer composition

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[0058] Some embodiments of the present invention will now be described in the following examples, in which all parts and percentages are by weight unless otherwise specified.

[0059] DISPONIL FES 32 anionic surfactant ("Fes-32") is commercially available from BASF.

[0060] Sodium carbonate (Na 2 CO 3 ), sodium persulfate (SPS), ammonium persulfate (APS), ferrous sulfate, ethylenediaminetetraacetic acid (EDTA), t-butyl hydroperoxide (t-BHP), isoascorbic acid (IAA), monoethanolamine (MEA ), sodium hydroxide (NaOH), iron nitrate, 4-hydroxy-2,2,6,6-tetramethyl-piperidinyloxy (4-hydroxy-TEMPO) and 2,2,6,6-tetra Methyl-4-piperidinol (TMP) can be purchased from Shanghai Chemical Reagent Co., Ltd. (Shanghai Chemical Reagent Co., Ltd.).

[0061] Ethyl acrylate (EA), butyl acrylate (BA), methyl methacrylate (MMA) and methacrylic acid (MAA) were all purchased from Shanghai Lang Yuan Chemical Co., Ltd. .

[0062] BRUGGOLITE FF6 ("FF6") is a reducing agent commercially available fro...

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Abstract

An aqueous polymer composition comprising an acetoacetoxy functional polymer, a metal pyrithione compound, and TEMPO and / or its derivative, showing less yellowing.

Description

technical field [0001] The present invention relates to aqueous polymer compositions, particularly aqueous coating compositions, and methods for reducing yellowing of coating compositions. Background technique [0002] Water-borne coating compositions are becoming more and more important than solvent-based coating compositions due to fewer environmental concerns. It is often desirable to incorporate biocides (also known as "antimicrobial compounds") into aqueous coating compositions to provide resistance to microorganisms. For example, metal pyrithione compounds such as zinc pyrithione (ZPT) have been used in waterborne coating compositions as long-acting antifungal compounds. However, these biocides may cause yellowing problems when exposed to sunlight. For example, US2007 / 0161723A1 discloses an antimicrobial coating that includes an effective amount of one or more UV light absorbers, such as hindered amine light stabilizers ("HALS"), which prevent or reduce UV light dama...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L101/06C08K5/378C08K5/3435
CPCC08K5/3435C08K5/56C08L101/00C09D5/14C09D7/48C08L33/04C08K5/46C08L33/14C08F220/283C08L2201/54
Inventor 刘涵陈军宇赵亚光董祥亭张庆伟李棱罗妍刘金涛
Owner DOW GLOBAL TECH LLC
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