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Fluorosilicones and fluorine- and silicon-containing surface treatment agent

A technology of polysiloxane and fluorinated alkyl, which is applied in fiber treatment, textiles and papermaking, etc., can solve the problems of reducing hydrophobicity and oil repellency, and achieve the effect of good texture

Active Publication Date: 2008-04-30
DAIKIN IND LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, increasing the content of siloxane polymers has the problem of reducing the hydrophobicity and oleophobicity

Method used

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  • Fluorosilicones and fluorine- and silicon-containing surface treatment agent
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  • Fluorosilicones and fluorine- and silicon-containing surface treatment agent

Examples

Experimental program
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Effect test

Embodiment

[0200] The following preparation examples and examples further illustrate the present invention in detail, but should not be construed as limiting its scope. Unless otherwise indicated, all parts and percentages in the examples are based on weight, and all tests are obtained at about 23°C.

[0201] 1. Shower water repellency test (JIS-L-1092)

[0202] According to JIS-L-1092, the spray water repellency test is carried out. The spray water repellency is represented by the hydrophobic number (shown in Table 1 below).

[0203] A glass funnel with a volume of at least 250ml and a nozzle that can spray 250ml of water within 20-30 seconds are used. The sample frame (flame) is a metal frame with a diameter of 15 cm. Three specimens with a size of about 20 cm×20 cm were prepared, and the specimens were mounted on the specimen holding frame so that the specimens had no wrinkles. The center of the spray is located in the center of the proof sheet. Fill the glass funnel with room temperature...

preparation example 1

[0234] Fill a 300ml flask with CF 3 CF 2 -(CF 2 CF 2 ) n -CH 2 CH 2 OCOCCl=CH 2 (n=1.0) (33g), stearyl acrylate (18g), N-methylol acrylamide (1.1g), methacrylic acid-3-chloro-2-hydroxypropyl ester (0.53g), silicon Oxyane 2 (2.5g), pure water (66.1g), tripropylene glycol (14.4g), acetic acid (0.11g), polyoxyalkylene (or polyoxyalkylene) ether (0.7g), polyoxyethylene sorbitan Sugar monolaurate (2.8g) and stearyltrimethylammonium chloride (2.1g) were emulsified by ultrasonic at 60°C for 15 minutes with stirring. The atmosphere of the flask was replaced with nitrogen, and then 2,2'-azobis(2-amidinopropane) dihydrochloride (0.3 g) was added and reacted at 60° C. for 3 hours to produce an aqueous polymer dispersion.

preparation example 2

[0236] Fill a 300ml flask with CF 3 CF 2 -(CF 2 CF 2 ) n -CH 2 CH 2 OCOCCl=CH 2 (n=1.0) (33g), stearyl acrylate (18g), N-methylol acrylamide (1.1g), methacrylic acid-3-chloro-2-hydroxypropyl ester (0.53g), silicon Oxyane 2 (1.5g), methyl isobutyl ketone (1.3g), methanol (1.3g), pure water (66.1g), tripropylene glycol (14.4g), acetic acid (0.11g), polyoxyalkylene ether (0.7g), polyoxyethylene sorbitan monolaurate (2.8g) and stearyltrimethylammonium chloride (2.1g) were emulsified by ultrasonic at 60°C for 15 minutes under stirring. The atmosphere of the flask was replaced with nitrogen, and then 2,2'-azobis(2-amidinopropane) dihydrochloride (0.3 g) was added and reacted at 60° C. for 3 hours to produce an aqueous polymer dispersion.

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PUM

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Abstract

A fluorosilicone reaction product of a mercapto functional organopolysiloxane and a fluorine-containing monomer, and methods of preparing the fluorosilicone are disclosed. The fluorosilicone products are suitable for application to substrates such as textiles, particularly fabrics, to impart oil repellent properties to the textile. The fluorosilicone reaction product is prepared from (A) a fluorine-containing monomer of the formula CH2=C(X)COOYRf, and (B) a mercapto functional organopolysiloxane.

Description

[0001] Cross references to related applications [0002] This application has the priority of U.S. applications 60 / 679,150 and 60 / 711,335, the disclosures of which are hereby incorporated by reference. Technical field [0003] The invention relates to a fluorosiloxane reaction product of a mercapto-functional organopolysiloxane and a fluorine-containing monomer and a method for preparing the fluorosiloxane. The fluorosiloxane product is suitable for use in substrates such as textiles, especially fabrics, thereby imparting oleophobicity (oleophobicity) to the textiles. [0004] The fluorosiloxane reaction product (ie, fluorine and silicon-containing polymer) can be used to introduce excellent hydrophobicity, oleophobicity, soil resistance and texture into a surface treatment agent for substrates such as textiles. Background technique [0005] Fluorocarbon polymers are widely used in the textile industry to impart oleophobicity / oleophobicity to fabrics. For example, US-A-5247008 des...

Claims

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Application Information

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IPC IPC(8): C08F283/12C08G77/28D06M15/19D06M15/643
Inventor 山本育男南晋一桝谷哲也彼得·C·胡佩费尔德阿夫里尔·E·舍其诺
Owner DAIKIN IND LTD
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