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Water-and-oil repellant composition

A hydrophobic and oleophobic composition technology, applied in other chemical processes, chemical instruments and methods, coatings, etc., can solve the problems of not showing hydrophobic and oleophobic properties, reducing durability, etc.

Inactive Publication Date: 2003-12-10
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in these occasions, it is supposed to show hydrophobic and oleophobic by R f The resulting crystalline part is destroyed, so there is a problem that it is impossible to exhibit hydrophobic and oleophobic properties while reducing durability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In a 100 ml glass ampoule made of polymer, add 8.1 g of C 4 f 9 CH 2 CH 2 OCOCH=CH 2 (The crystallite of the homopolymer has no melting point, so it is written as C below 4 FA), 12.3 grams of stearyl acrylate (the crystallite melting point of the homopolymer is 42°C, hereinafter referred to as STA), 0.4 grams of hydroxyethyl acrylate (hereinafter referred to as HEA), 0.3 grams of polyoxyalkylene dimethacrylate Alcohol ester (the polyoxyalkylene part is a structure added by 3 moles of propylene oxide and 7 moles of ethylene oxide. Hereinafter written as PAGM), 1.7 grams of polyoxyethylene octylphenyl ether (hereinafter written as PEOP), 0.4 grams of hard Fatty acyltriethylammonium chloride (hereinafter written as STEA), 26.2 grams of water, 10.5 grams of acetone, 0.1 gram of stearyl mercaptan (hereinafter written as STM) as a molecular weight regulator, 0.04 gram of 2 as an initiator, 2' - Azobis(2-methylpropionamide) dihydrochloride (hereinafter referred to as ABMA...

Embodiment 2

[0057] In 100 ml of glass-made polymer ampoule, add 4.1 g of C4FA, 16.2 g of behenyl acrylate (the melting point of homopolymer crystallites is 57°C), 0.4 g of HEA, 0.3 g of PAGM, 0.1 g of di( Ethylene glycol methacrylate, 1.7 g PEOP, 0.4 g STEA, 26.2 g water, 10.5 g acetone, 0.1 g STM, 0.04 g ABMA.

[0058] Then nitrogen substitution was carried out, and polymerization was carried out at 60° C. for 12 hours to obtain an emulsion having a solid content concentration of 38.8%. The obtained emulsion was washed twice with methanol, and then vacuum-dried at 30° C. overnight to obtain a polymer. The crystallites of the obtained polymer had a melting point of 55.2°C.

Embodiment 3

[0060] In a 100 ml glass-made polymer ampoule, add 4.1 g C4FA, 16.2 g cetyl acrylate, 0.4 g HEA, 0.3 g PAGM, 1.7 g PEOP, 0.4 g STEA, 26.2 g water, 10.5 g acetone, 0.1 g STM, 0.04 g ABMA.

[0061] Then, nitrogen substitution was carried out, and polymerization was carried out at 55° C. for 12 hours to obtain an emulsion having a solid content concentration of 37.4%. The obtained emulsion was washed twice with methanol, and then vacuum-dried at 30° C. overnight to obtain a polymer. The crystallites of the obtained polymer had a melting point of 27.3°C.

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Abstract

A water and oil repellent composition which can impart an excellent water and oil repellency to an object, even if it is processed at a low temperature, and which can achieve a water and oil repellent treatment providing a soft hand. The water and oil repellent composition which has as an essential component a copolymer consisting essentially of polymerized units of the following monomer (a) and polymerized units of the following monomer (b). monomer (a) : an R<f> monomer wherein the melting point of fine crystals derived from the R<f> groups of the homopolymer does not exist or is at most 50 DEG C. monomer (b) : a monomer having no R<f> group, wherein the melting point of fine crystals derived from the side chains of the homopolymer is at least 30 DEG C.

Description

technical field [0001] The present invention relates to hydrophobic and oleophobic agent compositions for imparting hydrophobic, oleophobic and stain repellent properties to articles. Background technique [0002] Heretofore, a technique of modifying the surface by coating an article with a hydrophobic solid substance having a low surface tension has been known. For example, hydrocarbon low-molecular compounds such as hydrophobic waxes, carboxylic acids, amines, and mercaptans with more than one long-chain alkyl group in the molecule; acrylic or vinyl polymer compounds; or silicon oxide However, although the above-mentioned low-molecular-weight hydrocarbon compounds or siloxanes can impart hydrophobicity to products, they have the disadvantage of not being able to impart oil repellency. [0003] As a technique to simultaneously impart hydrophobicity and oleophobicity to the surface, a polyfluoroalkyl group containing a polyfluoroalkyl group (hereinafter referred to as a pol...

Claims

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Application Information

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IPC IPC(8): C09K3/18
CPCC09K3/18
Inventor 前川隆茂岛田三奈子杉本修一郎関隆司
Owner ASAHI GLASS CO LTD
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