JPH04103696A - Liquid cleanser composition - Google Patents

Abstract

PURPOSE:To obtain the subject composition having excellent rinsing performance to abrasive by compounding a specific alkylglycoside, a specific partially crosslinked polyacrylic acid (salt), a specific water-soluble polymer, a specific water-insoluble abrasive and water at specific ratios. CONSTITUTION:The objective composition is composed of (A) 1-10wt.% of an alkylglycoside of formula [R1 is 8-18C alkyl(phenyl); R2 is 2-4C alkylene; G is group originated from 5-6C reducing sugar; average of (x) is 0-5; average of (y) is 1-10], (B) 0.05-2wt.% of a partially crosslinked polyacrylic acid (salt) having a Brookfield yield value of >=100g/sec.cm as 0.3% aqueous solution, (C) 0.1-5wt.% of one or more kinds of water-soluble polymers selected from polyacrylic acid salt, polymaleic acid salt, salt of acrylic acid/maleic acid copolymer, salt of isobutylene/maleic acid copolymer, salt of allyl alcohol/maleic acid copolymer and salt of diisobutylene/maleic acid copolymer, (D) 3-70 pts. of a water-insoluble abrasive and (E) the remaining part of water.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a liquid cleanser composition with good abrasive rinsing properties.

[Conventional technology and its problems]

Cleansers target stains such as denatured or burnt oil stains, water stains and slimy stains on sinks, and soap scum stains on bathtubs.

Furthermore, the material of the target surface is often a shiny metal surface such as stainless steel, dark polypropylene tiles used in bathtubs, enamel, etc.

Various attempts have been made to improve conventional liquid cleansers in terms of their cleaning power against these various stains and their ability to reduce damage to surfaces to be cleaned.

However, after cleaning the sides and bottom of sinks, bathtubs, etc., there are problems such as the abrasive does not wash off easily after cleaning, or the abrasive remains white after rinsing and drying, requiring a lot of effort to re-wash. This was one of the major factors preventing the spread of liquid cleansers.

[Means to solve the problem]

The present inventors conducted intensive studies to improve the rinsing properties of abrasives after using liquid cleansers, and found that the Brookfield yield value of a 0.3% aqueous solution of alkyl glycosides was 1.
The present invention was completed based on the discovery that significant effects can be achieved by incorporating a specific water-soluble polymer into a composition in combination with partially crosslinked polyacrylic acid or its salt having a rating of 00g/5ec-C11 or higher. reached.

That is, the present invention provides the following components (a) to (e) (a) represented by the following general formula (N R+(ORz) an alkyl group or an alkylphenyl group, R2 has 2 to 4 carbon atoms.
, G represents a residue derived from a reducing sugar having 5 to 6 carbon atoms, and X has an average value of 0 to 5;
The average value of y is 1 to 10. ] The Brookfield yield value of an aqueous solution of 1 to 30% by weight of alkyl glycoside represented by @0.3% by weight is 1
00 g/sec -cta or more of partially crosslinked polyacrylic acid or its salt 0.05 to 2% by weight (C) Polyacrylate, polymaleate, salt of acrylic acid-maleic acid copolymer, isobutylene-maleic acid A water-soluble compound with a molecular weight of 200 to 10,000 selected from the group consisting of a copolymer salt, a styrene-maleic acid copolymer salt, an allyl alcohol-maleic acid copolymer salt, and a diisobutylene-maleic acid copolymer salt. one or more types of polymers 0.1 to 5% by weight (b) water-insoluble abrasive 5 to 70% by weight (e) water
A liquid/cleanser composition containing the remainder is prepared.

The alkyl glycoside which is component (a) of the present invention is represented by the following general formula (1).

R+(ORt) Indicates a residue derived from a reducing sugar having the number 5 to 6, X has an average value of 0 to 5, and y has an average value of 1 to 10.) However, this value adjusts water solubility and crystallinity. In other words, when X is high, the water solubility tends to be high and the crystallinity tends to be low. The preferred value of X is O
0th order which is ~2, y has a mean greater than 1,
In other words, 2Il! Above 1! General formula where the chain is a hydrophilic group (
When containing the surfactant shown in 1), the sugar chain bonding mode is 1-2.1-3.1-4.1-6 bond, and further α-
It is possible to include 1β-pyranoside or furanoside linkages and any mixtures thereof having mixed modes of linkage. Moreover, although y is 1 to 10, a preferable average value is about 1.0 to 1.5, particularly 1.1 to 1.4. Note that y is measured by proton NMR method.

In addition, R1 is a linear or branched alkyl group, alkenyl group, or alkylphenyl group having 8 to 18 carbon atoms, and preferably has 10 to 14 carbon atoms in terms of solubility, foaming properties, and detergency. It is. Further, R2 is an alkylene group having 2 to 4 carbon atoms, but the preferred number of carbon atoms is 2 to 3 from the viewpoint of water solubility. Furthermore, the structure of G is determined by the raw materials of monosaccharides or 2 or more sugars, and the raw materials for G include glucose, galactose, xylose, mannose, lyxose, arabinose, etc., and mixtures thereof, etc. The above includes maltose, xylobiose, isomaltose, cellobiose, gentibiose,
Examples include lactose, sucrose, nigerose, turanose, raffinose, gentibiose, melezitose, and mixtures thereof. Among these, preferable monosaccharide raw materials are glucose and fructose from the viewpoint of availability and low cost, and among disaccharides or more, maltose and sucrose are preferable.

Component (a), the alkyl glycoside, is incorporated in the composition in an amount of 1 to 30% by weight. If the amount of component (a) is less than 1% by weight, it is not preferable because foaming during washing will be insufficient;
If it exceeds % by weight, the dispersion stability of the abrasive deteriorates, which is not preferable.

The partially crosslinked polyacrylic acid or its salt, which is a component of the can of the present invention, has a Brookfield yield value of 100 g/sec -cm or more in a 0.3% by weight aqueous solution, preferably 100 to 1000 g/sec -cmO. It is something. The Brookfield yield value referred to here is the measurement of the viscosity at 20°C of an aqueous solution of 0.3% by weight of polyacrylic acid, pH 6.0 to 8.0 (adjusted with triethanolamine).
It was calculated from the following formula.

The Brookfield yield value is a numerical value related to the crosslinking state of molecules, and when the molecular weights are the same, the larger this value is, the more crosslinked the molecules are.

The amount of the partially crosslinked polyacrylic acid (I) required is 0.05 to 2% by weight, preferably 0.1 to 2% by weight. (b) Component content is 0.05% by weight
If it is less than 2% by weight, the viscosity will be 500 cps or less, resulting in poor long-term storage stability of the water-insoluble abrasive, and if it exceeds 2% by weight, the viscosity will be 5000 cps or more, causing problems in use.

As an example of component (b), products with trade names such as Carbobol (Gutdrich Co., Ltd.) and Akvek (Sumitomo Seika) are known. These are usually commercially available in unneutralized form;
Before use, it is necessary to neutralize and dissolve in advance using a suitable neutralizing agent. When blended into the composition of the present invention, it is neutralized and dissolved in advance as described above.

Used for improving rinsability in the system of the present invention (
C) Component water-soluble polymers include polyacrylates,
Polymaleate, salt of acrylic acid-maleic acid copolymer, salt of isobutylene-maleic acid copolymer, salt of styrene-maleic acid copolymer, salt of allyl alcohol-maleic acid copolymer, diisobutylene-maleic acid There are salts of acid copolymers, and salts of alkali metals such as sodium and potassium are particularly preferable, and the molecular weight is 200 to 1.
0000, preferably 200 to 5000, the blending amount is 0.1 to 5% by weight, preferably 0.3 to 3% by weight
It is.

The water-insoluble abrasive as component (d) used in the present invention includes silicon dioxide, aluminum oxide, aluminum hydroxide, magnesium oxide, titanium oxide, silicon carbide, calcium carbonate, calcium phosphate, chromium oxide,
Examples include synthetic zeolite, natural zeolite, and polymer beads such as corundum, emery, silica, quartz sand calcite, dolomite, polyvinyl chloride, polystyrene, polyethylene, and ABS.

Among these, silicon dioxide, calcium carbonate, and synthetic zeolites with an average particle size of 1 to 40 microns are most commonly used.

These components (d) are present in the composition in an amount of 3 to 70% by weight, preferably 20 to 60% by weight.

The liquid cleanser composition of the present invention usually comprises the above (a) to (
b) It is prepared by adding water to the ingredients, but alkaline agents, solvents, hydrotropic agents, bactericidal agents, fragrances, pigments, dyes, etc. may be optionally added to the extent that the desired effects of the present invention are not impaired. I can do it.

Examples of alkali agents include organic alkali agents such as ammonia, monoethanolamine, jetanolamine, triethanolamine, and morpholine, alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, sodium carbonate, sodium birophosphate, and tripolyphosphoric acid. sodium,
Sodium borate or the like or their potassium salts can be used.

Examples of the solvent include aliphatic alcohols such as ethyl alcohol and butyl alcohol, ethylene glycol, propylene glycol, polyethylene glycol, and their aliphatic lower alcohol (methyl, ethyl, propyl, butyl, etc.) ethers. .

As the hydrotrope, paratoluenesulfonate, urea, etc. can be used.

The pH of the liquid is adjusted from neutral to alkaline so as to exhibit excellent cleaning power.

〔Effect of the invention〕

The liquid cleanser composition of the present invention does not leave abrasive residue on target surfaces such as the side and bottom surfaces of bathtubs, sinks, etc., and has excellent rinsing properties.

〔Example〕

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

Inventive products 1 to 5 and comparative products 6 to 13 were prepared as liquid cleanser compositions for evaluation shown in Table 1 (numbers are weight percent of each component), and their rinsability and dispersibility were evaluated according to the following criteria. did.

The results at this time are shown in Table-1.

Stainless steel plate (size 405a+m x 283mm)
) A sample of 10 g of each liquid cleanser composition for evaluation was taken on the surface of the sample, and a urethane sponge was used to absorb 5 mZ of water and polished for 1 minute.

After that, set the stainless steel plate at an angle of 30 degrees to the horizontal, and 11! Water was poured from above, and sand (abrasive) adhesion on the stainless steel plate was visually observed and evaluated.

The evaluation criteria at this time are as follows.

O: No sand attached.

◎...There is a slight amount of sand attached, but it is not a concern.

Δ...There is sand adhesion, which is a concern.

×: There is sand adhesion, which is obviously a concern.

Dispersibility> The liquid cleanser composition for evaluation was placed in an ioo&/ glass bottle, and the dispersion stability after being left in a 20'' C1 wound was evaluated.

The evaluation criteria at this time are as follows.

O...Stable.

△: There is slight syneresis.

×...Obviously separated.

Claims (1)

[Scope of Claims] 1st order components (a) to (e) (a) The following general formula (I) R_1(OR_2)_xG_y(1) [In the formula, R_1 is a linear or branched chain having 8 carbon atoms ~18 alkyl group or alkylphenyl group, R_2 represents an alkylene group having 2 to 4 carbon atoms, and G represents a residue derived from a reducing sugar having 5 to 6 carbon atoms. The average value of x is 0 to 5, and the average value of y is 1 to 5.
It is 10. ] Alkyl glycosides 1 to 30 represented by
(b) 0.05 to 2% by weight of partially crosslinked polyacrylic acid or its salt having a Brookfield yield value of 100 g/sec cm or more in a 0.3% by weight aqueous solution (c) Polyacrylate, polymaleic acid salts, salts of acrylic acid-maleic acid copolymers, salts of isobutylene-maleic acid copolymers, salts of styrene-maleic acid copolymers,
One or more water-soluble polymers with a molecular weight of 200 to 10,000 selected from the group consisting of salts of allyl alcohol-maleic acid copolymers and salts of diisobutylene-maleic acid copolymers 0.1 to 5% by weight % (d) 3 to 70% by weight of a water-insoluble abrasive (e) A liquid cleanser composition containing the remainder of water.