Water and oil repellent composition

a technology of composition and oil repellent, applied in the direction of film/foil adhesive, ink, textiles and paper, etc., can solve the problems of soft hand of soft fiber products, the demerits resulting from such a polymer have not been fundamentally overcome, and the object coated or treated with such a polymer becomes very hard

Inactive Publication Date: 2005-12-01
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0024] Further, the present invention provides a water and oil repellent composition, which comprises, as an essential component, a copolymer containing at least 30 mass % and less than 80

Problems solved by technology

However, since an Rf group-containing crystallizable polymer is used as the main component, the following demerits resulting therefrom have not been fundamentally overcome.
However, if a crystallizable Rf group-containing monomer is used, the entire polymer will have high crystallinity attributable thereto, and accordingly, an object coated or treated with such a polymer becomes very hard.
For example, intrinsically soft fiber products may lose their soft hand, and since the coating film is hard and brittle, defects such as hand marks and chalk marks formed during handling the object tends to remain on raw fabrics as the finished products.
Further, there has been a demerit that the water and oil repellency is initially high right after the treatment with a water and oil repellent is high, but tends to extremely deteriorate by abrasion during the use or by repeated washings.
Further, there are problems such as insufficient adhesion of the coating film on the surface and vulnerability to cracks and fractures which deteriorate the quality of the object, and therefore, it has been desired to overcome such problems.
However, in the case of fiber products made of materials such as extrafine-denier fibers or modified cross-section fibers, such a high temperature treatment causes problems such as deterioration of color fastness, hard hand

Method used

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  • Water and oil repellent composition
  • Water and oil repellent composition

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0141] In a 300 mL glass beaker, 34.4 g of C6F13C2H4OCOC(CH3)═CH2 (hereinafter referred to as FMA, which forms a homopolymer having no melting point attributable to fine crystals (hereinafter referred to Tm) and a glass transition point (hereinafter referred to as Tg) of 51.5° C.), 1.1 g of polyoxyethylene oleyl ether as an emulsifier (an adduct with about 20 mol of ethylene oxide, hereinafter referred to as PEO-25), 0.3 g of a polyoxyethylene-polyoxypropylene-polyoxyethylene block copolymer (molecular weight: 3300, polyoxypropylene ratio: 60 mass %, hereinafter referred to as PEPP-33), 0.3 g of stearyltrimethylammonium chloride (hereinafter referred to as STMAC), 48.9 g of ion exchanged water, 13.7 g of dipropylene glycol (hereinafter referred to as DPG) and 0.2 g of normal dodecyl mercaptan (hereinafter referred to as nDSH) were heated for 30 minutes at 50° C. and stirred with a homomixer (Biomixer, manufactured by Nihon Seiki Seisakusho) to give a liquid mixture.

[0142] The resul...

examples 2 to 8

[0143] Polymerization was carried out in the same manner as in Example 1 except that the monomers shown in Table 1 were used in the amounts (unit: g) shown in Table 1 to give emulsions.

TABLE 1Ex. 1Ex. 2Ex. 3Ex. 4Ex. 5Ex. 6Ex. 7Ex. 8FMA(a)34.432.332.332.333.0———FA—————34.432.3—8FA———————32.335DPBI(b)—2.1————2.12.1BOBI(b)——2.1—————BOIPBI(b)———2.1————GMA(b)————1.4———Solid28.630.729.330.328.229.129.627.5content %

[0144] The abbreviations in Table 1 have the following meanings.

[0145] FA: C6F13C2H4OCOCH═CH2 (Tm: not exist Tg: not exist),

[0146] 8FA: C8F17C2H4OCOCH═CH2 (Tm: 75° C., Tg: not exist),

[0147] 35DPBI: 3,5-Dimethylpyrazole adduct of 2-isocyanatoethyl (meth)acrylate,

[0148] BOBI: 2-Butanone oxime adduct of 2-isocyanatoethyl (meth)acrylate and

[0149] GMA: Glycidyl methacrylate.

[0150] BOIPBI:

example 9

[0151] Into a 1 L glass beaker, 228.4 g of FMA, 61.8 g of stearyl acrylate (Tm: 42° C., Tg: not exist, hereinafter referred to as StA), 18.5 g of 35 DPBI, 9.6 g of PEO-25, 2.8 g of PEPP-33, 2.8 g of STMAC, 447.5 g of ion exchanged water, 123.6 g of DPG and 2.2 g of nDSH were put, and the same operation as in Example 1 was carried out to obtain a liquid mixture.

[0152] The resulting liquid mixture was processed into an emulsion with a high pressure emulsifier (LAB60-10TBS, manufactured by APV GAULIN K. K.) at 40 MPa, while maintained at 50° C. 697.6 g of the resulting emulsion was placed in a 1 L stainless steel autoclave and cooled to 30° C. or below. 1.4 g of VA061 as a polymerization initiator and 1.0 g of acetic acid were added, and after vapor phase replacement with nitrogen, polymerization was carried out at 55° C. for 12 hours with stirring to give an emulsion having a solid content of 35.5%.

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Abstract

A water and oil repellent composition having excellent durability, which can impart excellent water and oil repellency to an object, even in a process at low temperatures, and which enables water and oil repellent treatment providing a soft hand. A water and oil repellent composition which comprises, as an essential component, a copolymer containing polymerization units of the following monomer (a) and polymerization units of the following monomer (b):
    • monomer (a): an Rf group-containing monomer which forms a photopolymer having no melting point or a melting point of at most 55° C. attributable to fine crystals derived from the Rf groups and having a glass transition point of at least 20° C.
    • monomer (b): a monomer having no Rf group and having a cross-linkable functional group.

Description

TECHNICAL FIELD [0001] The present invention relates to a water and oil repellent composition. The water and oil repellent composition of the present invention can develop excellent water and oil repellent performance even in a process at low temperatures, and further, is excellent in durability to abrasion, washing, etc. which is required for some types of substrates, and therefore the initial water and oil repellency can be maintained. BACKGROUND ART [0002] As a technique for imparting water and oil repellency to the surface at the same time, it has been common to treat an object with an organic solvent solution or an aqueous dispersion of a polymer containing polymerization units of a polymerizable monomer containing a polyfluoroalkyl group (hereinafter, a polyfluoroalkyl group will be referred to as an Rf group) in its molecule (hereinafter, such a monomer will be referred to also as an Rf monomer) or a copolymer of such a polymerizable monomer with additional monomers (hereinaf...

Claims

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Application Information

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IPC IPC(8): C09K3/18
CPCC08F218/08C08F220/18C08F220/22C08F220/24C08F220/34C08F220/36D06M2200/50C09K3/18D06M15/256D06M15/263D06M2200/00D06M2200/11D06M2200/12C08F230/08C08F220/1818C08F220/1808C08F230/085C08F220/346C08F220/1804
Inventor SUGIMOTO, SHUICHIROSHIMADA, MINAKOSHIMADA, TOYOMICHISEKI, RYUJIMAEKAWA, TAKASHIGE
Owner ASAHI GLASS CO LTD
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