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Surface treatment agent

An emulsifier, water-repellent oil-repellent technology

Active Publication Date: 2019-08-09
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, soap base is formed in this composition, so water repellency is poor
In addition, in the polymer emulsion, the number of carbon atoms in the ester moiety is small, so sufficient water repellency cannot be imparted.

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0213] Hereinafter, the present invention will be described in detail with examples, but the present invention is not limited to these examples.

[0214] In the following, as long as there is no special mark, parts or% or ratio means parts by weight,% by weight or ratio by weight.

[0215] The test procedure is as follows.

[0216] Spray water repellency test

[0217] The treatment agent dispersion was diluted with tap water to a solid content concentration of 1.5% by weight to prepare a test solution. After immersing a twill cloth in the test solution, it was passed through a roller and heat-treated at 160°C for 2 minutes. The test cloth was evaluated Water-based. The water repellency of the treated cloth was evaluated in accordance with the spray method of JIS-L-1092 (AATCC-22). As shown in Table 1 described below, it is represented by the water repellency No. The larger the score, the better the water repellency. According to the state, the middle value (95, 85, 75) is taken.

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manufacture example A1

[0242] A 1L autoclave was charged with stearyl acrylate=150g, pure water=360g, tripropylene glycol=60g, polyoxyethylene tridecyl ether (EO3) (HLB 8.0)=7.5g, polyoxyethylene Ethyl tridecyl ether (EO20) (HLB 16.3) = 12.5 g, lauryl mercaptan = 1.0 g, emulsified and dispersed with ultrasonic waves at 60°C for 15 minutes while stirring. After replacing the interior of the autoclave with nitrogen, 50 g of vinyl chloride was charged under pressure, 2,2-azobis(2-amidinopropane) 2 hydrochloride=2.0 g was added, and the reaction was carried out at 60°C for 3 hours to obtain polymerization Aqueous dispersion of material (average HLB 13.2). Furthermore, the solid content concentration was adjusted to 30% with pure water. The monomer composition of the resulting polymer is basically the same as the composition of the charged monomer.

manufacture example A2

[0244] Fill a 1L autoclave with stearyl acrylate=150g, pure water=360g, tripropylene glycol=60g, polyoxyethylene lauryl ether (EO2) (HLB 6.4)=7.5g, polyoxyethylene laurel Ether (EO20) (HLB 16.5) = 12.5 g, lauryl mercaptan = 1.0 g, emulsified and dispersed with ultrasonic waves at 60°C for 15 minutes while stirring. After replacing the interior of the autoclave with nitrogen, 50 g of vinyl chloride was charged under pressure, 2,2-azobis(2-amidinopropane) 2 hydrochloride=2.0 g was added, and the reaction was carried out at 60°C for 3 hours to obtain polymerization Aqueous dispersion of material (average HLB 12.7). Furthermore, the solid content concentration was adjusted to 30% with pure water. The monomer composition of the resulting polymer is basically the same as the composition of the charged monomer.

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Abstract

Provided is a water- and oil-repellent agent that is an aqueous dispersion containing (A) a non-fluoropolymer having repeating units derived from a non-fluorine (meth)acrylic acid ester monomer, (B) awax, (C) an aqueous medium, and (D) an emulsifyier, wherein said water- and oil-repellent agent exhibits exceptional water- and oil-repellent processing stability without using a fluoromonomer, or inparticular, a fluoroalkyl-group-containing monomer, by using a water- and oil-repellent agent, in which the non-fluorine (meth)acrylic acid ester monomer is a compound represented by the formula CH2=CA11-C(=O)-O-A12 (where A11 is a hydrogen atom or a methyl group and A12 is a linear or branched C18-30 hydrocarbon group).

Description

Technical field [0001] The present invention relates to a surface treatment agent containing a non-fluoropolymer and a polymer surfactant. Specifically, the present invention can impart excellent water repellency and antifouling properties to components of fiber products (for example, carpets), paper, nonwoven fabrics, stone materials, electrostatic filters, dust covers, and fuel cells. Background technique [0002] Currently, fluorine-containing water and oil repellents containing fluorine compounds are known. This water and oil repellent agent shows good water and oil repellency when treating substrates such as fiber products. [0003] According to recent research results [EPA report "PRELIMINARY RISK ASSESSMENT OF THEDEVELOPMENTAL TOXICITY ASSOCIATED WITH EXPOSURE TO PERFLUOROOCTANOIC ACID ANDITS SALTS" (http: / / www.epa.gov / opptintr / pfoa / pfoara.pdf)] etc., as long-chain fluorine PFOA (perfluorooctanoic acid), one of the substituted alkyl compounds, has become more and more conc...

Claims

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Application Information

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IPC IPC(8): C09K3/18C08F220/10D06M15/27
CPCC09K3/18D06M15/263D06M15/53D06M13/02D06M13/224D06M2200/11D06M2200/12D06M13/17C08F220/1818C08F214/06C08F220/58C08L33/08C08L91/08C08F220/10D06M15/27C08F2/24C08K5/10C08L71/02C08L2201/52C08L2203/12C08L2205/03
Inventor 原良辅川部留美宫原正弘山本育男
Owner DAIKIN IND LTD
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