JPS6272798A - Bleach composition for solid surfaces - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a novel bleach composition, more particularly containing hydrogen peroxide or a peroxide that produces hydrogen peroxide in an aqueous solution, and an acrylonitrile-based polymer. The present invention relates to a bleach composition characterized by:

[Conventional technology and problems]

In general, hydrogen peroxide used in clothing bleaches or peroxides that generate hydrogen peroxide in an aqueous solution can exhibit a high bleaching effect at high temperatures, but as the temperature drops, significantly reduces its effectiveness. In addition, various so-called activators have been disclosed to increase the effect of peroxides, but most of them are low-molecular esters, so they smell like low-molecular peracids, making them difficult to use in actual products. It cannot be,
Furthermore, polymer compounds have the disadvantage that they have almost no activation effect under conditions where the effective oxygen concentration is low.

[Means for solving problems]

As a result of intensive research to overcome these drawbacks, the present inventors have solved these drawbacks by combining acrylonitrile-based polymer with hydrogen peroxide or a peroxide that generates hydrogen peroxide in an aqueous solution. They discovered what they could do and completed the present invention.

The present invention relates to (a) hydrogen peroxide or a peroxide that produces hydrogen peroxide in an aqueous solution, and (b) a water-soluble or water-dispersible acrylonitrile homopolymer or acrylonitrile and a monomer copolymerizable with acrylonitrile. 1 or 2 of
The present invention provides a bleach composition characterized in that it contains a copolymer with more than one species.

Peroxides that generate hydrogen peroxide in an aqueous solution used in the present invention include organic and inorganic hydrogen peroxide adducts such as sodium carbonate/hydrogen peroxide adduct, sodium tripolyphosphate/hydrogen peroxide adduct, Sodium picrate
Hydrogen peroxide adduct, urea/hydrogen peroxide adduct, or 4
Examples include Na25Oa'2L(h.NaCl double salt).

Further, there are inorganic peroxides such as sodium perborate hydrate, sodium perborate tetrahydrate, sodium peroxide, and calcium peroxide. Among these, particularly preferred are sodium carbonate/hydrogen peroxide adduct, sodium perborate hydrate, and sodium perborate tetrahydrate.

The amount of hydrogen peroxide or organic or inorganic peroxide that generates hydrogen peroxide in an aqueous solution in the bleach composition is preferably 0.5 to 95%, more preferably 5 to 90%, particularly preferably 30%. ~90%.

Monomers copolymerizable with acrylonitrile in component (b) used in the present invention include, in particular, carboxylic acids such as acrylic acid, methacrylic acid, or maleic anhydride, or monomers that can be hydrolyzed to produce carboxylic acids. is good, but
Other copolymerizable monomers such as methyl acrylate, methyl methacrylate, vinyl acetate, and ethylene can be added. The ratio of acrylolotrile and the copolymerizable monomer is 10:90 to 100:O (molar ratio), preferably 20:80 to 90:10.

Among these, preferred is an acrylic acid/acrylonitrile copolymer using a furkyl mercaptan having one or more carbon atoms as a polymerization initiator.

These acrylonitrile polymers are commercially available,
In the present invention, water-soluble or water-dispersible materials can be used.

Next, the amount of the acrylonitrile polymer used in the present invention is preferably 0.5 to 50%, more preferably 1 to 25%. 1 degree in solution during use is 0.
It is 1 to 10%, preferably 0.2 to 5%.

The effect of the bleach composition of the present invention can be further enhanced by adding a buffer for adjusting po.

These buffers include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, ammonium hydroxide or amine derivatives such as mono-, di-, and triethanolamine, and alkali metal hydroxides such as sodium carbonate and potassium carbonate. carbonates, ammonium carbonate, etc., ortho-42 H2 salts of alkali metals such as sodium orthophosphate, potassium orthophosphate, orthophosphates such as ammonium orthosulfate, silicates of alkali metals such as sodium silicate, potassium silicate, ammonium silicate. Silicates such as silicates can be used.

The pH1l buffer has Q depending on the type of peroxide used.
You can use 1) Adjust to II to bring about the same effect.

The compositions of the present invention can also be used in combination with conventional activators. Activators that can be used include:
Nitriles such as acetonitrile, malononitrile, phthalonitrile, hendiyliminodiacetonitrile, glucose venteracetate, octaacetyl sucrose, triacetin, sorbitol hexaacetate,
Acetoxybenzenesulfone B salt, or 0-acetylated products such as triacetyl cyanuric acid, methyl chloroformate, N, N, N', N'-tetraacetylethylenediamine or tetraacetylglycoluril, N-penzoylimidazole l-, di-N-acetyldimethylglyoxime, l-phenyl-3-7 cetylhydantoin,
N- such as N,N-diacetylaniline, N-acetyldiglykolimide, diacetylmethylene diformamide
Acylated and acid anhydrides such as phthalic anhydride, succinic anhydride, benzoic anhydride, glutaric anhydride, alkyl sulfuric anhydrides, carboxylic and monosulfonic acid anhydrides, di(
Methanesulfonylsulfonyloxime, acylated phosphates such as di-ethylhendiyl phosphate, phenylsulfonate esters, azides such as diphenylphosphinic azide, disulfones such as diphenyldisulfone, and other N
Examples include -sulfonylimidazole, cyanamide, and halogenated triazine. These activators can be used alone or in combination of two or more.

The amount of the activator used is preferably 5% to 70%, preferably 10% to 50%, based on the composition.

Furthermore, the composition of the present invention may optionally contain sodium chloride,
Potassium chloride, chloride. Alkali metal halides such as lithium, ammonium chloride, sodium bromide, potassium bromide, lithium bromide, ammonium bromide, or ammonium halides, alkali metal sulfates such as sodium sulfate, potassium sulfate, lithium sulfate, or ammonium sulfate salts. , alkali metal bicarbonates such as sodium bicarbonate, potassium bicarbonate, lithium bicarbonate, alkali metal pyrophosphate salts such as ammonium bicarbonate, sodium pyrophosphate, potassium pyrophosphate, lithium pyrophosphate, ammonium pyrophosphate, tripolyphosphate. Alkali metal salts of tripolyphosphate such as sodium, potassium tripolyphosphate, and lithium tripolyphosphate, alkali metal condensed phosphates such as ammonium tripolyphosphate, or ammonium salts can be blended.

An activator such as an anionic activator, a nonionic activator, a cationic activator, or a zwitterion activator can be added to the composition of the present invention, if necessary.

Examples of anionic activators include sulfate ester salts of higher alcohols having 10 to 22 carbon atoms, carboxylic acid salts having 10 to 22 carbon atoms, α-olefin sulfonates having 10 to 22 carbon atoms, and alkyl groups having 10 to 22 carbon atoms. alkylbenzene sulfonate having a carbon number of 10 to 22, paraffin sulfonate having a carbon number of 10 to 22, alkyl sulfosuccinate having an alkyl group having a carbon number of 8 to 22, an ethylene oxide adduct of a higher alcohol having a carbon number of D10 to 22 (number of moles added = 1) ~1
Examples include sulfuric esters of 00) and sulfuric esters of alkylphenol polyethylene glycol ethers having an alkyl group having 8 to 22 carbon atoms.

Examples of nonionic activators include higher alcohols with linear or branched chains having 10 to 22 carbon atoms, polyethylene glycol ether (degree of polymerization: 3 to 100), and ethylene glycol ether having 1 carbon number.
Poly of 0 to 22 carboxylic acids (degree of polymerization: 3 to 100)
Ethylene glycol ester, alkylphenol poly having an alkyl group having 8 to 22 carbon atoms (degree of polymerization: 3 to 1
00) Ethylene glycol ether etc. can be exemplified.

In addition, if necessary, solubilizing agents such as sodium p-toluenesulfonate, sodium xylene sulfonate, urea, aluminum silicate such as montmorillonite, magnesium silicate such as seviolite, attapulgite, calcium carbonate, abrasives such as silicon dioxide, Crystalline silica, pigments, dyes, fragrances, etc. can be added.

When using the bleaching agent of the present invention, if necessary, the composition may be added to water at a concentration of 0.5 to 50%, preferably 1 to 30%, to form a solution, slurry, or paste. It is recommended that you spray or spray it on the target surface immediately. To give a more specific example, in use, the effective oxygen concentration is preferably 0.1 to 10%,
More preferably, it is 0.2 to 6%.
, pH is preferably 8 to 13, more preferably! , ma9~
12 is good.

〔Effect of the invention〕

The bleach composition according to the present invention exhibits sufficient bleaching power even on solid surfaces and is particularly effective even at low temperatures, so it can be used not only as a bleaching agent for clothing, but also as a mold remover, a water pipe cleaner, Can be used as toilet cleaner, ventilation fan cleaner, etc.

〔Example〕

The present invention will be described below with reference to Examples, but the present invention is not limited to these Examples.

Example 1 A composition obtained by adjusting the formulation below was applied to tile joints, triangular corners, etc. in a bathroom, and after being left overnight, stain removal was observed.

Comparative example Sodium percarbonate of the present invention 1515 Acrylonitrile polymer 0-5 Water 3535C
OONa CN a:b=l:1 molar ratio molecular weight 3500 Although stains remained in the comparative example, stains were completely bleached in the present invention.

Claims (1)

[Scope of Claims] 1 (a) hydrogen peroxide or a peroxide that produces hydrogen peroxide in an aqueous solution; and (b) a water-soluble or water-dispersible acrylonitrile homopolymer or acrylonitrile and a monomer copolymerizable with acrylonitrile. A bleach composition characterized by containing a copolymer with one or more of the following: