JPS61162597A - Detergent composition - 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 [Industrial Field of Application] The present invention relates to an excellent cleaning composition for removing oil stains caused by grease and oil from machinery, and stains from bathtubs, bathrooms, etc.

[Conventional technology]

So far, methyl cellosolve, methyl calpitol, ethyl cellosolve, ethyl calpitol, butyl cellonorb, and butyl calpitol have been used as solvents for this type of cleaning agent.

However, methyl cellosolve, methyl calpitol, ethyl cellosolve, and ethyl calpitol are too hydrophilic and have weak ability to dissolve oil stains, and cleaning agents containing them have weak cleaning power. The most commonly used detergents are Butylseronlupe and Butylcarpitol. These solvents have a strong ability to swell, dissolve, and remove oil stains, and are widely used as industrial and household cleaning agents.

However, these butyl ethers have a strong odor and cannot be used in closed spaces.
It also causes health problems and is regulated by the Industrial Safety and Health Act.As described above, a solvent-based cleaning agent with satisfactory performance has not been obtained.

In addition, Japanese Patent Application Laid-open No. 1137700, which was filed earlier than this application,
The issue describes a solvent-based cleaning agent containing polyalkylene glycol monotert-butyl ether, but this has poor oil bath properties because it has a hydroxyl group at the end, so it is still poor in terms of cleaning performance. There was room for improvement.

[Problem that the invention seeks to solve]

An object of the present invention is to solve the above-mentioned drawbacks and provide a cleaning composition with excellent performance.

[Means for solving problems]

The present inventors have discovered that a polyoxyalkylene glycol diether (hereinafter abbreviated as PAGI) represented by the general formula fi+ below does not have a bad odor, which is a disadvantage of such butyl ethers, and that a cleaning agent containing them can remove such butyl ethers. The present invention was achieved by discovering that it has a cleaning power equal to or greater than that of the cleaning agent containing it.

The cleaning composition of the present invention has the general formula % (in the formula, R and R7 may be the same or different (・C
/~I hydrocarbon group, R8 is H or CH3, n is 1~
It is characterized by containing 0.1 to 30% by weight of PAGDE represented by the number 3).

[For production]

The PAGDE used in the present invention is obtained by adding alkylene oxide (hereinafter referred to as AO) to alcohols with 7 to 7 carbon atoms, phenol, alkylfers, etc., and then generating alcoholades with caustic soda, sodium metal, sodium alcoholade, etc. The target PAGDE is purified by reacting with /-1 halogenated hydrocarbon.
is obtained. Alternatively, PAGDE may be obtained in the same manner using polyalkylene glycol as a starting material.

As the alkylene oxide and/or polyalkylene glycol to be added, ethylene oxide and propylene oxide are used alone or in combination. Particularly, propylene oxide is preferable because it increases oil solubility and has good cleaning properties.

In the above general formula (1), the formula R7 is a hydrocarbon group having l to j carbon atoms, such as an alkyl group such as a methyl group, an ethyl group, a propyl group, a butyl group, an amyl group, a hexyl group, a heptyl group, an octyl group, etc. Examples include, but are not limited to, a phenyl group, a cresyl group, a xylyl group, an allyl group, a benzyl group, and a phenethyl group.

n is the value of average/-j, preferably 83 to μ, O; if this value is smaller than 7, the solubility will be low, and if it is larger than j, the cleaning power will be reduced and the detergent I can't do anything better.

The content of PAGDE in the cleaning composition is 0.7-3
0% by weight is preferred. If it is less than 0.1% by weight, there is almost no effect of adding it, and even if it is added more than 0.1% by weight, the performance of the detergent will not be greatly improved and it is economically disadvantageous.

The cleaning composition of the present invention usually takes the form of an aqueous solution, but may contain a surfactant (7 to -0% by weight). For alkaline detergents, anionic activators or nonionic activators and mixtures thereof are good, and for acidic detergents, cationic activators or nonionic activators and mixtures thereof are good. Also, alkanolamines,
Alkaline agents such as sodium hydroxide and tripolyphosphate, builders, acidic substances such as organic acids such as citric acid, succinic acid, and tartaric acid, and coloring agents, flavoring agents, stabilizers, preservatives, and chelating agents may also be added. I can do it.

〔Example〕

The present invention will be explained in more detail below with reference to Examples.

Production example / Synthesis of polyalkylene glycol diether 31 In an autoclave, 3 moles of tripropylene glycol monomethyl ether <to3o1), 10 sodium methylate
Prepare moles (S≠OI), ioo~/koIC1J O
Methanol is distilled off under conditions of wxH9 or less to perform alcoholade formation.

Thereafter, S mol (bJol) of dimethyl sulfate is added dropwise at a temperature of 40-IOC to carry out a reaction. The obtained reaction product was washed with water and distilled under reduced pressure to give tripropylene glycol dimethyl ether 9/Jj! (yield: 3%).

Production example: In a Jt glass four-way flask equipped with a dropping device and a stirrer,
Diethylene glycol monobutyl ether ψmol (ba
gg), ψg% caustic soda 0 mol/bq01
), tetodiptyl ammonium bromide (
(hereinafter abbreviated as TBAB) (7, <c soru (l ko?, F
), stirred, and added benzyl chloride Hiromole (sob
1/ ) dropwise to react. The organic layer of the obtained reaction product was distilled under reduced pressure, and diethylene glycol butyl benzyl ether 197I! (yield: 9%).

Production Example J Into a Jt autoclave, 3 moles of diethylene glycol monoethyl ether (DaOco9) and 0 moles of FCOHo (8/I) were charged, and at 700 ~/Hiro OC, J moles of propylene oxide ( /74.li+). After the reaction was completed, ≠g% caustic soda/j mol (/co301!) TBAEO, 3 mol (qqg) was further charged, and butyl chloride 9 mol (t, y31) was added dropwise under stirring at a temperature of 60-gOC and normal pressure. react. The organic layer of the obtained reaction product was distilled under reduced pressure to obtain polyalkylene glycol ethyl butyl ether qrbg (yield: 0%)
.

Production example: 3 moles of phenol in a Hiro Jt autoclave (Kotoko I)
, KOHf7.0 comol (1,/i) was charged, 10θ
Propylene oxide/ethylene oxide = // in advance in a nitrogen stream at ~/ll0cK.

0 alkylene oxide blended in molar ratio (
React 67 pieces I). After the reaction is completed, 6 mol of sodium methylate (JcotIy> is added, and IOθ~
/kooC,koOwaHIl Methanol is distilled off under the following conditions to perform alcoholade conversion. However, later on,
The reaction is carried out with 6 moles of methyl chloride (JOJI) at a temperature of bo-goC.

The obtained reaction product was washed with water and distilled under reduced pressure to obtain 760 g of polyalkylene glycol phenyl methyl ether (yield tj%).

Production example j 3 mol of methanol (/boi
), KOHθ, O Hiromol (ko, sl) to prepare lOO~
/uOC in a nitrogen stream, propylene oxide/1.1
mol (10 qog) is reacted. After the reaction is completed, 10 moles of sodium methylate (,1<<Og) are further charged, and methanol is eliminated under the following conditions: IOθ~/CoOC,CoOwmH17 to perform alcoholade conversion. After that, 10 moles of butyl chloride (qcosfl) was heated to a temperature of 60~
The reaction is carried out with gOC. The obtained reaction product was washed with water and distilled under reduced pressure to obtain polypropylene glycol methyl butyl ether/
gsg was obtained (yield gp%).

Production Example 6 In the manufacturer, the number of moles of alkylene oxide added to 1 mole of phenol is 9 moles, and further, without changing the molar ratio of propylene oxide and ethylene oxide, up to 7 moles are added, and in the same manner, polyalkylene glycol phenyl Methyl ether //! r01/ was obtained (yield g5%) 0 [Example/] (Household cleaning agent) This example relates to a cleaning agent that removes oil stains from cooktops, ventilators, glass products, metal products, etc.

5US-JO Hiromu's JX &
! It was left in a constant rC bath for 2 hours and then cooled to make a test piece. Add a certain amount of the undiluted solution and 10% water bath solution of each cleaning agent shown in the table below to a sponge, and rub the undiluted solution 70 times and the 70x solution 20 times using a reciprocating friction washing tester under a constant load. After that, the cleaning power was calculated using the following formula (2): In addition, these cleaning agent stock solutions were sprayed with a sprayer for 10 seconds in a sealed reinforced concrete house (/Om''), immediately after, and after 7 hours. The odor after 7 days was comparatively evaluated.The formulations and results are shown in Table-/.

The cleaning power of both the stock solution and the IO double solution was good except for Rf-7 and Rf-3. The odor was good except for R1-co. Comprehensive judgment from the detergency and odor showed that only the detergent of the present invention was good. The compositions of the invention are suitable as household cleaners.

[Example 2] (Bathroom Cleaning Agent) This example relates to a cleaning agent for removing stains from bathtubs, washing basins, bathroom walls, etc.

A board made of polypropylene, JX6Xσ, Kotan, was immersed in a methyl ethyl ketone solution containing % calcium oleate, % lanolin, and % soybean oil, then pulled out, thoroughly drained of oil, and dried in a constant temperature bath at 10JC for 7 hours. After that, it was cooled and used as a test piece. Test pieces were immersed in the undiluted solution and 70x solution of each cleaning agent with the formulation shown in Table 1 for 10 minutes for the undiluted solution and for 1 hour for the 70x solution, then washed with water and dried, and the cleaning performance was evaluated by the removal rate of attached oil. . In addition, the odor was evaluated immediately after spraying these detergent solutions with a sprayer for 70 seconds in a closed bathroom (J, Jm''), after a period of /#, and after 7 days.

The formulation and evaluation results are shown in Table.

The results were similar to those in Example 1, and only the cleaning agent according to the present invention had good odor cleaning power.

The composition of the invention is also suitable as a bathroom cleaner.

Note that the present invention is not limited to the described embodiments.

〔effect〕

The effect of the present invention is to provide a cleaning composition that has a strong ability to dissolve oil stains and has little odor.

Claims (1)

[Claims] General formula▲ Numerical formula, chemical formula, table, etc.▼ (In the formula, R_1 and R_2 are hydrocarbon groups having 1 to 8 carbon atoms and may be the same or different, R_3 is a hydrogen atom or A cleaning composition characterized by containing 0.1 to 30% by weight of a polyoxyalkylene glycol diether represented by a methyl group (n is a number of 1 to 5).