JPS63221179A - Release agent composition for resin wax film - Google Patents

Abstract

PURPOSE:To obtain the title composition which is diluted with water prior to use to be thickened and is then applied to a thick coat so that peeling can be facilitated without a polisher, by using a specified water-soluble organic solvent as principal component and various effective components form an alkaline solution. CONSTITUTION:The title alkaline composition consisting of 20-60wt.% organic solvent (A) of the formula (wherein R is 1-4C alkyl, phenyl or benzyl; R' is ethylene or propylene; n is 1-3) (e.g., ethylene glycol mono-n-butyl ether); 0.1-5wt.% water-soluble polyacrylic acid (B) [e.g., a (meth)acrylic acid/ polyalkenyl polyether copolymer]; 0.1-5wt.% nonionic surface active agent (C) (e.g., polyoxyethylene alkylphenyl ether); 0.1-20wt.% polyhydric alcohol (D) (e.g., ethylene glycol); 1-15wt.% inorganic or organic alkali (E) (e.g., NaOH); and 35-75wt.% water (F). The use of this composition can facilitate the peeling of a resin wax film without a polisher.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a stripping agent composition for stripping a film of a floor polish such as a resin wax.

[Prior Art] Generally, resin wax polishing agents used for floors etc. are mainly composed of metal crosslinked acrylic resin emulsion, polyethylene emulsion carbonate, and resin.

It is a compound such as a plasticizer. In such a resin wax polishing agent, the carboxyl groups in the metal crosslinked acrylic resin bond together during the drying process after application.

Cross-linked with metal atoms such as Zn, it becomes a tough coating that can withstand walking. In the metal-crosslinked carboxyl group-modified acrylic polymer film, ammonium ions and the crosslinked metal form a complex salt, so the crosslinks can be broken. As a result, the carboxyl group becomes free and the alkali causes sodium J! ! It becomes soluble in water.

Utilizing this property, 'Am' is usually carried out, and various stripping agents for this purpose are commercially available.In general, when maintaining floors, etc., it is difficult to remove scratches caused by long-term walking, etc. After the resin wax coating that has lost its aesthetic appearance is completely removed using a strong alkaline remover, a new polishing agent such as resin wax is applied to restore the aesthetic appearance.

Conventionally used stripping agents are mainly composed of water-soluble solvents, alkaline bilges, surfactants, amines, etc.
This is used by diluting it 5 to 10 times with water. Peeling work using such a diluted solution involves first applying the diluted stripping agent solution uniformly onto the film with a mop, etc. After waiting for 0 hours to dissolve or swell the film to some extent, use a polisher to thoroughly coat the film with a special stripping vat. Remove by polishing. The waste water is then collected and thoroughly wiped down. During this series of operations, it was essential to thoroughly polish the coating using a poly lasher to ensure reliable peeling.

However, the use of poly lashers is difficult and requires skill, and is generally used despite the problems that it cannot be used in narrow and intricate places or stairs. This is because stripping work in office buildings, supermarkets, Tehart stores, etc. is generally carried out at night after people have gone home, and there are restrictions on work time. In order to complete the work within this limited time, each step of the peeling work must be performed reliably.Therefore, with the currently commonly used Us agent, it is necessary to use Polylasha to perform the peeling work reliably. It is essential.

[Problems to be Solved by the Invention] Conventional stripping agents or their dissolution liquids are low-viscosity Newtonian liquids, so they flow very easily. Therefore, when used, they can be used on lockers, bookshelves, etc. installed on the floor. Remover had flowed underneath.

It was difficult to collect all of this during the work, and it seeped out after the peeling work was completed. This corrodes the newly applied resin wax coating and further causes discoloration of the raw material, resulting in a significant loss of aesthetic appearance. Therefore, in cases where such a possibility exists, masking tape or the like is used to prevent the g* agent from flowing into the container. However, since it is a very labor-intensive task in a large space, there was a desire for a remover that would not run and spread during the period from application to collection.

Furthermore, the fact that conventional stripping agents are low-viscosity Newtonian liquids has made it impossible to uniformly and sufficiently thickly coat the resin wax film to be stripped. This caused the applied release agent to become thinner and cause it to evaporate and dry. Since this dried part forms a film again, it cannot be removed in the wet wiping process and remains unpeeled. In such cases, the removal work is required again, which is not only time-consuming but also causes the problem that the work cannot be completed within the scheduled time.Also, if the release agent is thin, the absolute amount of the release agent against the film is small. However, it is difficult to sufficiently dissolve the film, which makes it necessary to use a polisher.Furthermore, the film partially dissolves or swells, and the small amount of remover that evaporates becomes highly viscous, making recovery work time-consuming. . In this case, it is necessary to apply the release agent or water again, resulting in the problem of the release agent flowing and spreading as mentioned earlier. Therefore, there has been a demand for a strong release agent that does not dry easily and allows complete removal with a single application.

In addition, stripping work sites include areas where it is desirable to limit the use of conventional stripping agents and water as much as possible, such as raised floors, where wiring and piping are concentrated, and inspection and replacement of these. For example, computer rooms, studios, etc., which are used for floors that require Raised floors - several tens of CIs between the concrete slab and the floor where the tiles are placed.
There is a space in which wiring and piping will be installed.

These floors are often divided into 50 cm square sections and are removable. (Conventional stripping agents and water can run down through the gaps into the space under the floor, causing short circuits, electrical leaks, and
It may cause corrosion etc. As a result, there are some cases where we are unable to respond adequately, and it is expected that the number of such cases will increase in the future. Therefore, there is an urgent need to develop a stripping agent that uses the minimum necessary amount of water and does not run off.

Furthermore, in addition to regular flat tiles, embossed tiles with an uneven surface have recently appeared among the floors to which resin wax is applied. At sites where such tiles are used, it is difficult to perform work that requires the use of conventional poly lashers.In other words, the four-part poly lasher work is insufficient and tends to leave peeling residue. Even if the agent is too fluid as in the past, it will still leave peeling residue on the convex portions. Therefore, it does not require a poly lasher and has chicken tropic properties that allow it to be applied evenly to uneven parts of tiles! 4 release agent is desired.

Furthermore, there are many areas on the floor where polyrushers cannot be used, such as corners, baseboards, and under desks.

In such areas, it was necessary to polish the floor surface manually with a bat after applying the release agent, which was inefficient.

Therefore, there was only one release agent that required a polishing operation to facilitate the removal operation.

Yet again. The area where the resin wax polish is applied is
In addition to flat floors, there are also vertical surfaces such as stairs. In this work, it was not possible to completely remove the film using normal methods, and in particular, it was difficult to hold the release agent on a vertical surface, and it was necessary to rely on inefficient manual methods. Therefore, there has been a desire for a 'A release agent that does not drip even on vertical surfaces.

A release agent for resin wax polishing agents that overcomes the above-mentioned problems has not yet been developed.

Conventional stripping agents are water-soluble solvents, as mentioned earlier.

It is generally a low-viscosity Newtonian solution composed of alkaline bilge, surfactants, amines, etc. One way to solve these problems with release agents is to add a thickener to impart high viscosity and chicken-tropic properties.

However, simply adding a binder to a conventional stripping agent has several problems and cannot be used. First, the hydrogen ion concentration of the stripping agent is close to that of Step 4, and it is strongly alkaline, and it also contains ionic substances such as a wide variety of acids, such as inorganic alkalis such as sodium metasilicate, anionic surfactants, and solubilizing agents. When a water-soluble polymer is used, it is difficult to develop a stable release agent composition due to salting out and hydrolysis.
Since it is not water-soluble, it remains behind after the peeling process is completed, and when a new resin wax is applied, the resin wax causes a whitening phenomenon and cannot be used.

Furthermore, since the release agent is usually diluted 5 to 10 times with water, the viscosity of the release agent before dilution must be adjusted to ensure viscosity and thixotropic properties that will not spread or drip during use. It will be very expensive. This poses a problem in stirring during production, filling the container, or removing the product from the container during use.

Therefore, it is preferable that the agent has good fluidity from manufacture to dilution before use, and that the desired viscosity is achieved only when diluted with water immediately before the iqs operation.

Furthermore, conventional release agents are formulated on the premise that polylashes (physical effects) will be used during work. For this reason, sufficient peeling could not be achieved by chemical effects based on the solubility of the metal crosslinked acrylic resin in aqueous alkaline solutions at normal dilution ratios. Although it is rarely used at a dilution rate as low as 2 to 3 times, the viscosity is low and this does not solve all of these problems.

By increasing the viscosity of the release agent by diluting it with water when using the release agent, the present inventors have made it possible to use it even in the field where it was difficult to retain the release agent in the past, and they have also made it possible to apply it evenly and sufficiently to the resin wax film. A new stripping agent composition that can be applied thickly to maximize the chemical effect, and by suppressing drying, it prolongs the effective time of contact with the resin wax film to be removed, eliminating the need for a polisher. invented.

[Means for Solving the Problems] The present invention provides a resin wax M which is composed of (A) or F) I&and exhibits alkalinity with a pH>10! A release agent composition.

(A) Water-soluble organic solvent 20 represented by the following general formula (I)
~80 weight 2 R-0-(R'0)nH11@1111 ([) (In the formula, R represents an alkyl group with 1 to 4 carbon fi, a phenyl group, or a benzyl group, and R' is an ethylene group, a propylene group, or Both, n is 1 to 3) (B) Water-soluble polyacrylic acid 0.1 to 5 weight 2 (C) Nonionic surfactant 0.1 to 5 weight 2 (D) Co-/
l/0.1-20 weight 2 (E) inorganic or organic alkali 1-15 weight 2 (F) water
35-75 The water-soluble organic solvent of component 5 (A) by weight is a water-soluble organic solvent represented by the following general formula (I), which is oxidized to a monohydric alcohol having 1 to 4 carbon atoms, phenol, or benzine alcohol. It contains 1 to 3 moles of ethylene or propylene oxide, or both.

R-0-(R'0)nHe m * e (I) (in the formula, R represents an alkyl group having 1 to 4 carbon atoms, a phenyl group, a benzyl group, and R' is an ethylene group or a propylene group, or both, n is 1 to 3) For example, ethylene glycol mono-n-butyl ether, diethylene glycol monoethyl ether, pyrene glycol motu-a-yl ether, etc. can be mentioned, and these types can be used alone or in combination of two or more types.

As the water-soluble polyacrylic acid of component (B), it is preferable to use what is called a crosslinked acrylic acid polymer, which is an olefinically unsaturated carboxylic acid such as acrylic acid,
It is a copolymer of methacrylic acid or the like and various polyhydric alcohols such as polyalkenyl polyethers. Several types of water-soluble polyacrylic acid having this structure are commercially available, such as Hibis Wako-103 (carboxyl group content 57.7-83.4%, 0.2'1. Neutralized liquid viscosity 13 ,000 to 40.0OOcp; manufactured by Wako Pure Chemical Industries, Ltd.). These can be used singly or in combination of two or more.

The nonionic surfactant of component (C) is, for example, polyethylene diethylene alkyl ether having a primary or secondary alkyl group having 8 to 22 carbon atoms and an average number of moles of ethylene added of 6 to 30; Examples include polyoxyethylene alkylphenyl ale having a mole number of 6 to 30 and an alkyl group having 8 to 16 carbon atoms. Any molecular weight range commonly used as detergents, penetrants, and lubricants can be used.

Examples of the polyhydric alcohol of component (D) include ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, and trimethylene glycol.

Examples include butanediol, l#5-bentanediol, hexylene glycol, glycerin, etc., and these can be used alone or in combination of two or more.

(E) Components include alkali metal hydroxides such as sodium and potassium, carbonate phosphates, and silicates such as sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, sodium phosphate, and phosphorus. acid potassium, sodium metasilicate, potassium metasilicate,
Examples include inorganic alkalis such as sodium orthosilicate and potassium orthosilicate. In addition, aqueous ammonia and organic alkalis include alkylamines, alkanolamines, etc. For example, alkylamines include monoethylamine, diethylamine, triethylamine, etc. Examples of alkanolamines include monoethanolamine, jetanolamine, and triethanolamine, and examples of alicyclic amines include morpholine. Furthermore, ethylene amines and propylene amines such as ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, pentaethylene hegisamine, and piperanzine can be used.

In the present invention, the compounding wrinkle of the water-soluble organic solvent represented by the general formula (D), which is the component (A), is limited because at 80% by weight or more, the water-soluble polyacrylic acid, which is the component (B), precipitates. If it is less than 20% by weight, the release effect will decrease and the proportion of water in one composition will increase, making it difficult to form a uniform composition. This is because the solubility increases and the viscosity of the composition becomes too high.Preferably it is 30 to 50% by weight.

The amount of the water-soluble polyacrylic acid, component (B), is limited because if it exceeds 5% by weight, a uniform composition cannot be obtained and the water-soluble polyacrylic acid will precipitate. 0
．． This is because if it is less than 1% by weight, sufficient viscosity cannot be obtained upon dilution. Preferably it is 0.5 to 3% by weight.

The amount of nonionic surfactant (C) component is limited because if it is less than 0.1% by weight, it will not penetrate well when used diluted.
The lubricating effect is poor, resulting in residual peeling. There is no difference in effect even if 5% by weight or more is added.

The amount of polyhydric alcohol, component (D), is limited because if it is less than 0.1% by weight, a sufficient water-retaining effect cannot be obtained, and if it is added more than 20% by weight, there is no difference in the water-retaining effect. be. Preferably it is 2 to 15% by weight.

The amount of inorganic and organic alkali (E) component is 1
The amount is necessary so that the pH of the composition becomes alkaline, preferably 1 to 13. If the PI (I) is below I1, the resin wax film cannot be removed sufficiently, and if the pH is above 13, the composition will lack stability. 10
The amount of the inorganic and organic alkalis of component (E) to be blended is determined by the type and amount of Component (E) (in which pH is around 1 in a 0.2% concentration aqueous solution) and the strength of basicity depending on the type of component (E).

The roles of the inorganic and organic alkali components (E) can be divided into two. In other words, in order to develop the viscosity by diluting with water when the composition is used, the resin wax film is dissolved with an alkali that is more than neutralized, that is, freed, as a neutralizing agent for water-soluble polyacrylic acid, which is component (B). It is a role to encourage people.

Neutralize the water-soluble polyacrylic acid that is component (B) (
E) Inorganic and organic alkalis are divalent metal hydroxides, which cause water-soluble polyacrylic acid to coagulate and precipitate.
It must not be an acid salt, phosphate, or silicate, and for the same reason, polyethylene polyamines such as ethylene diamine cannot be used as the main neutralizing agent. Component (IE) with inorganic and organic alkalis, such as sodium hydroxide, is more strongly basic than component (IE).
) to neutralize the water-soluble polyacrylic acid (preferably at pH 7).
It can be added after 5° or more). In order to remove the resin wax film based on the solubility of the metal crosslinked acrylic resin, which is the main component of the resin wax polish, in an aqueous alkali solution, it is necessary to Compositions made alkaline with free organic alkali are much more effective. Therefore, in the composition of the present invention, among the inorganic and organic alkalis of component (E), the organic alkali component is
) is present in the composition in free form, without being completely consumed in the neutralization of the water-soluble polyacrylic acid. Considering the importance of peeling work, it is preferable to use alkanolamines such as monoethanolamine and polyethyleneamines, which are less volatile than volatile ammonia and alkylamines.

In addition, the composition of the present invention may contain a fragrance pigment, a preservative, a rust preventive agent, etc. as required. Component (B), a water-soluble polyacrylic acid, is gradually added to a water-soluble organic solvent and dispersed uniformly.Next, component (C) is a nonionic surfactant, component (D) is a polyhydric alcohol, and water ( Add F) and stir to make it homogeneous. Finally, component (E), an inorganic and organic alkali, is obtained by stirring in HO.

[Effect of the invention 1 The composition of the present invention obtained in this way has a
It exhibits easy motive power of 0 to 200 cps, and can be transported and stored in this state, and when used, diluted 2 to 5 times with water and stirred to easily produce a gel of 100,000 or more to 5,000 cps.
It can be made into starch syrup.

As described above, the viscosity of the release agent of the present invention can be increased by diluting it with water during use, so it can be used even in sites where it was difficult to retain the release agent in the past.
Furthermore, by making it possible to coat the resin wax film uniformly and thickly, it maximizes the chemical effect, and by suppressing drying, the contact time with the resin work film to be removed is extended. This makes it possible to eliminate the need for a polisher.

To remove the product using the remover of the present invention, simply thicken it by diluting it with water, apply it thickly to floors, stairs, etc., leave it for about 5 minutes, collect it with a squeegee or water vacuum, and then spray it with water. Able to complete work. Therefore, conventional stripping work is usually performed by five people (
Previously, it required one person to apply the remover, one person to apply the polisher, one person to collect the waste water, and two people to wipe the water, but by using the remover of the present invention, the same work processing capacity can be achieved. 9 Work can be reduced to 4 people by eliminating the need for PolyLasher 9. Peeling work in complex areas with various objects such as offices, which is highly difficult, requires no PolyLasher, and it is not possible to use PolyLasher by hand. Since we were able to simplify the peeling work of parts that previously relied on manual polishing, we were able to significantly increase the throughput and save labor. Furthermore, because manual polishing work is not required at the most difficult stage, work efficiency has been significantly improved. We were also able to accommodate the special site of a raised floor.

[Example] Examples are given to illustrate the features of the present invention.

Table 1 (7) 71 examples of I, II, [, EV, Vl-1 tree Ra, ■ indicates a comparative example.

(Leaving space below) Table 1 Examples/Comparative Examples (The values are in weight%) It is.

Example works, ■, m, rv, v and comparative example ■ shown in Table-1
Furthermore, a commercially available general peeling agent was used as Comparative Example (2), and a peeling test was conducted using the following method.

・'J4 release test (preparation of peel test piece) Resin wax with 25% non-volatile content 5X l 5
c) It was coated uniformly on a black vinyl asbestos tile 5 times with a brush and left at room temperature for 24111+ minutes, and then left in a constant temperature bath kept at 38±2° C. for 6 hours as an acceleration condition. Thereafter, it was immersed in distilled water at room temperature and gently stirred for 1 hour. A tile was taken out of the water and left in a constant temperature bath at 38±2° C. for 18 hours, which was used as a peel test piece. The acceleration conditions for the test piece here were in accordance with the Japan Floor Borish Industry Association standards - removability.

(Test Method) Examples I, I, and III of Table 1 were kept at 20±2°C on peel test pieces left under the accelerated conditions described above.

2, 2, Comparative Example 2, and 2 or 5 times diluted solutions of Comparative Example 2 with water were uniformly applied to a thickness of about 3 mm. After 1 minute and 5 minutes, the sample was thoroughly rinsed with driftwood and air-dried, and the 211# result was visually judged. Those that were completely peeled off were evaluated as Δ, those that had some O1 peeled off, and those that were not completely peeled off were evaluated as ×.

Table 2 shows the peel test results, the properties of each example, and the viscosity of each example when diluted with water.

(Left below) Table 2 Peel test results, Composition properties 1 Composition viscosity when exposed to wooden box (viscosity is cps) Examples I, II, III, rV, V,
Comparative Examples ■ and vn did not show any dry areas even after 10 minutes.

However, Comparative Example (3) could not be held on the test piece and ran off, and after 2 minutes, dry areas began to appear and those areas remained peeled. The numbers in parentheses in the peel test results for Comparative Example ① are the results of a similar test in which the test piece was immersed in a beaker containing a diluted solution of the respective peeling agent.

Claims (1)

[Claims] (A) Water-soluble organic solvent 2 represented by the following general formula (I)
0 to 80% by weight R-O-(R'O)_nH...(I) (In the formula, R represents an alkyl group having 1 to 4 carbon atoms, a phenyl group, or a benzyl group, and R' represents an ethylene group or Propylene group or both, n is 1 to 3) (B) Water-soluble polyacrylic acid 0.1 to 5% by weight (C) Nonionic surfactant 0.1 to 5% by weight (D) Polyhydric alcohol 0 .1 to 20% by weight (E) 1 to 15% by weight of an inorganic or organic alkali and (F) 35 to 75% by weight of water, and is characterized by exhibiting alkalinity.