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Water- and oil-repellent composition

A technology of polymer and oil agent, which is applied in the direction of water-repellent addition, textiles and papermaking, and liquid-repellent fibers, etc. It can solve the problems of polymers that cannot meet the performance and low crystallinity

Active Publication Date: 2011-08-10
DAIKIN IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the reasons mentioned above, it is considered that the acrylate polymer having a fluoroalkyl group having a low carbon number of up to 7 (in particular, up to 6) in the side chain has low crystallinity, so that the polymer cannot satisfy practical performance ( especially water repellency)

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0156] The present invention is now explained in detail by way of Examples, Comparative Examples and Test Examples. However, the present invention is not limited to these.

[0157] In the following Examples, Comparative Examples and Test Examples, parts and percentages are by weight unless otherwise specified.

[0158] The test procedure was carried out as follows.

[0159] Water repellency test

[0160] The treated fabrics were kept in a thermo-hygrostat at a temperature of 21°C and a humidity of 65% for at least 4 hours. Test liquids (isopropanol (IPA), water, and mixtures thereof, as indicated in Table 2) that had been stored at 21°C were used. The test was carried out in an air-conditioned room with a temperature of 21°C and a humidity of 65%. A drop of 0.05 mL of the test liquid is gently dripped onto the fabric through a micropipette. The test liquid passed the test if droplets remained on the fabric after standing for 30 seconds. Water repellency is expressed as...

preparation example 1

[0166] In a 1 liter autoclave, charge CF 3 CF 2 -(CF 2 CF 2 ) n -CH 2 CH 2 OCOC (CH 3 )=CH 2 (n=2.0) (13FMA) (78.4g), isobornyl methacrylate (IBMA) (26.0g), pure water (250g), tripropylene glycol (35.1g), polyoxyethylene oleyl ether (5.4g) and polyoxyethylene isotridecyl ether (5.4 g) and stirred at a temperature of 60° C. for 15 minutes, and then ultrasonically emulsified and dispersed. After replacing the atmosphere in the autoclave with nitrogen, vinyl chloride (VCM) (30 g) was charged by injection. Furthermore, 2,2-azobis-(2-amidinopropane) dihydrochloride (0.91 g) was added to conduct a reaction at 60° C. for 5 hours, and an aqueous dispersion of a polymer was obtained. The composition (weight ratio) of monomers in the obtained polymer was 13FMA / IBMA / VCM=60 / 20 / 20.

preparation example 2

[0168] In a 1 liter autoclave, charge CF 3 CF 2 -(CF 2 CF 2 ) n -CH 2 CH 2 OCOC (CH 3 )=CH 2 (n=2.0) (13FMA) (78.4g), cyclohexyl methacrylate (CHMA) (26.0g), pure water (250g), tripropylene glycol (35.1g), polyoxyethylene oleyl ether (5.4g) and polyoxyethylene isotridecyl ether (5.4 g) and stirred at a temperature of 60° C. for 15 minutes, and then ultrasonically emulsified and dispersed. After replacing the atmosphere in the autoclave with nitrogen, vinyl chloride (VCM) (30 g) was charged by injection. Furthermore, 2,2-azobis-(2-amidinopropane) dihydrochloride (0.91 g) was added to conduct a reaction at 60° C. for 5 hours, and an aqueous dispersion of a polymer was obtained. The composition (weight ratio) of monomers in the obtained polymer was 13FMA / CHMA / VCM=60 / 20 / 20.

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Abstract

A fluorine-containing polymer comprising repeating units derived from: (A) a fluorine-containing monomer represented by the general formula: CH2=C(-X)-C(=O)-Y-Z-Rf wherein X is a hydrogen atom, a monovalent organic group or a halogen atom, Y is -O- or -NH-; Z is a direct bond or a divalent organic group; Rf is a fluoroalkyl group having 1 to 20 carbon atoms; and (B) a (meth)acrylate monomer having a cyclic hydrocarbon group provides a water- and oil-repellent agent which imparts excellent water repellency, oil repellency and stain-proofing properties to a substrate.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Application Serial No. 61 / 096,927, filed September 15, 2008, the disclosure of which is incorporated herein by reference. technical field [0003] The present invention relates to fluoropolymers and treatment compositions, particularly surface treatment compositions containing the polymers, which impart to textiles (e.g., carpets), paper, nonwovens, masonry, electrostatic filters, dust masks and Fuel cell components are characterized by excellent water repellency, oil repellency and stain resistance. Background technique [0004] Hitherto, various fluorine-containing compounds have been proposed. Fluorine-containing compounds have advantageous effects, which have excellent properties in terms of heat resistance, oxidation resistance, weather resistance, and the like. Fluorine-containing compounds are used as, for example, water- and oil-repellent agents and antifouling agents b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/22C08L25/00D06M15/277
CPCD06M2200/11D21H17/11D06M15/277D06M15/263C08F220/18D06M2200/12D06M15/244D06M15/248D06M15/295C08F220/24C09D133/00D21H21/16C08F220/1806C08F220/1811C08F220/1818
Inventor 榎本孝司山本育男宫原正弘薄谷光宏南里昌史久保田浩治坂下浩敏南晋一仲村尚子武内留美
Owner DAIKIN IND LTD
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