JPH09279190A - Clay-like cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a clay-like cleaner having high ability to remove the surface stains or foreign substances on coating films etc., without impairing resistance to tackiness and friction, comprising a polybutene resin and polyisobutylene resin each having specific viscosity and molecular weight, filler and castor oil. SOLUTION: This clay-like cleaner essentially comprises 5-50wt.% of a polybutene resin 500-3,000 in molecular weight and 2-5,700cSt in dynamic viscosity at 100 deg.C, 5-50wt.% of a polyisobutylene resin 10,000-600,000 in molecular weight and 5,000-100,000cSt in dynamic viscosity at 200 deg.C and 30-90wt.% of a filler 15-55cc/100g in oil absorption such as calcium carbonate, talc, clay, kaolin, silica rock, aluminum oxide or titanium dioxide, and also containing 0.5-20wt.% castor oil. This cleaner is capable of easily removing in a short time the surface stains, and foreign substances such as coat mist, resin liquid or iron powder on coating films, glass or plastics without impairing resistance to tackiness and friction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention removes and cleans dirt, paint mist, sap, iron powder and other foreign matter adhering to the surface of coating films, glass, plastics, etc. easily and in a short time without damaging the adhering surface. For cleaners that are intended to do.

[0002]

2. Description of the Related Art Conventionally, these foreign substances are compounded, sandpaper, wax containing an abrasive, a cleanser, a method of polishing the foreign substance and the adhered surface using a grindstone, and a liquid resin. A method in which a foreign substance is removed by rubbing with a plastic solid form in which the agent is dispersed has been used.

However, in the method of removing foreign matters such as compounds and sandpaper and the adhering surface by polishing, the adhering surface is scratched to lose its gloss and devitrification, or the adhering surface is abraded to thin the coating film. If the surface of the coating film is accelerated or the accuracy is required, dimensional stability will be poor. For this reason, it took a very long time because a polishing process and a repainting process were required after the removing work.

In a method of dispersing an abrasive in a liquid resin to remove foreign matter by friction, the adhesive force and adhesive force of the liquid resin are increased as the frictional force is increased and the removal effect is increased, resulting in slippage on the treated surface. Disappears and sticks and remains on the surface, and in the manual work, sticky work becomes very difficult.
It is an object of the present invention to provide a cleaner with little stickiness, which can be easily and quickly removed and cleaned by rubbing the surface without impairing the surface on which foreign matter is attached.

[0005]

Means and Actions for Solving the Problems The present invention has solved the above-mentioned problems and has a molecular weight of 500 to 3000, a kinematic viscosity (100 ° C.) of 2 to 5700 cst, a polybutene resin of 5 to 50 wt%, and a molecular weight of 10,000 to 60. 10,000, viscosity (at 20
(0 ° C.) 5 to 50 wt% of polyisobutylene resin of 5000 to 100,000 cst, 30 to 90 wt% of filler having an average particle size of 0.1 to 20 μm, and oil absorption of 15 to 55 cc / 100 g.
% Is a clay-like cleaner having less stickiness, characterized in that castor oil is contained in an amount of 0.5 to 20 wt% in a composition composed of 100% as an essential component.

The clay-like cleaner of the present invention is polybutene,
It is a solid material consisting of polyisobutylene resin, filler, castor oil and having a hardness ranging from clay-like to semi-solid. Polybutene and polyisobutylene resins have strong adhesiveness and friction resistance against contaminants and foreign substances, but their dynamic strength is poor because they are liquid. In order to make up for the drawback, by adding a filler to change from clay-like to semi-solid state, the foreign matter removing performance was improved without impairing the adhesion and friction resistance.

However, although these compositions have the ability to remove foreign substances, they have strong adhesion, adhesion, and frictional resistance, causing adhesion to the treated surface or adhesion to the hands, which makes work extremely difficult. As a result of repeated test studies to solve this problem, by using castor oil in combination with these compositions, the adhesion on the foreign substance-attached surface is reduced and the sliding is improved without impairing the foreign substance removal effect.
It was also found that the workability is greatly improved by eliminating the adhesion to the hands during work.

The polybutene resin used in the present invention has a molecular weight of 500 to 3000 and a kinematic viscosity (100 ° C.) of 2 to 5700.
The molecular weight, kinematic viscosity, and addition amount can be changed in order to produce a clay state when mixed with the filler in the range of 5 to 50 wt% in cst. Similarly, the polyisobutylene resin can be changed in molecular weight, kinematic viscosity, and addition amount in order to form a clay state.

By using the polybutene resin in combination with the polyisobutylene resin, the cohesive force inside the clay structure can be enhanced, the cleaner effect can be improved, and the change of the state due to temperature can be reduced.

The filler used in the present invention has an average particle size of 0.
Calcium carbonate, talc, clay, kaolin, silica stone, aluminum hydroxide, aluminum oxide, bentonite, in the range of 1 to 20 μ and oil absorption of 15 to 55 cc / 100 g.
Inorganic powder such as diatomaceous earth, titanium oxide, glass, or polyethylene, polypropylene, nylon, urea resin,
Organic powders such as phenol resin and urethane resin, fibrous materials and mixtures thereof can be used.

Since these fillers are easily mixed with the polybutene or polyisobutylene resin, those whose surface is hydrophobized can also be used. A filler having an average particle size of 20 μ or more is likely to cause a large scratch on the treated surface, which is not preferable in terms of aesthetics and protection of the treated surface.

The castor oil used in the present invention is a pale yellow to tan viscous liquid obtained from castor seeds,
Those standardized for industrial use, refining, Japanese Pharmacopoeia and cosmetic raw material standards can be used, and are not particularly limited.

The amount added is 0.5 to 20 wt%,
The content is preferably 2 to 15 wt%, and if it is less than 0.5 wt%, the adhesive strength of the polybutene and polyisobutylene resins cannot be alleviated, and adhesion to the treated material and stickiness to the hand remain. 2
If it exceeds 0% by weight, castor oil becomes an oil content and bleeds on the surface of the clay, remains on the treated surface, and the clay state becomes crunchy, resulting in a reduction in the cleaning effect.

The composition of the present invention may contain additives such as a coloring agent and a hydrophobizing agent for improving the dispersion of the filler.
Various dyes and pigments are selected as the colorant, and higher fatty acid type, titanium type and silane type are selected as the hydrophobic treatment agent.

According to the present invention, by attaching water to the treated surface and rubbing it, the attached dirt and foreign substances can be removed. The removed foreign matter adheres to the surface of the clay, but a certain cleaning effect can always be obtained by weaving this surface inside and exposing a new surface. Further, the cleaner of the present invention has a characteristic that it can be worked with a very small amount of water because the adhesiveness of the treated surface is weak.

Next, the present invention will be described in more detail by showing Examples and Comparative Examples, but these do not restrict the present invention. The mixing ratios are all parts by weight.

[0017]

EXAMPLES AND COMPARATIVE EXAMPLES The clay-like cleaners of Examples 1 to 3 and Comparative Examples 1 to 3 were prepared according to the blending ratios shown in Table 1. The processing method was to knead polybutene and polyisobutylene resin by a test kneader at room temperature, gradually add and mix various fillers and additives, then add castor oil and knead for about 1 hr to obtain a clay-like cleaner.

[0018]

[Table 1]

Details of the components shown in Table 1 are as follows. Polybutene HV-1900 (polybutene resin) Nippon Petrochemicals Average molecular weight: 3650, kinematic viscosity (100 ° C): 5700
cst Polybutene HV-300 (polybutene resin) Nippon Petrochemicals Average molecular weight: 1350, kinematic viscosity (100 ° C): 220c
st Tetrax 6T (polyisobutylene resin) Nippon Petrochemicals Average molecular weight: 60,000, viscosity (200 ° C): 50,
500cst White seal WS-KK (Surface treated calcium carbonate)
Takehara Chemicals Average particle size: 2.0μ, oil absorption: 16cc / 100g Heavy calcium carbonate P-70 (calcium carbonate) Shiraishi Industry Average particle size: 27μ, oil absorption: 16cc / 100g Silica powder WS-55S (silica powder) Takehara Chemicals Average particle size: 3.4μ, oil absorption: 28cc / 100g Manchurian talc Tsuchiya Kaolin Average particle size: 9.0μ, oil absorption: 35cc / 100g Chemivest FD380 (polyethylene cotton fiber) Mitsui Petrochemical average fiber Length: 0.7 mm, Melting point: 135 ° C. Oleic acid LUNAC OP (hydrophobicizing agent) Kao castor oil Industrial castor oil KYOWA OIL CO
MPANY

Test Method-Workability Stickiness: The tackiness on the surface when the kneaded prototype was touched by hand was examined. Slip: We examined the slip when the surface was rubbed hard with a clay cleaner, which was a prototype of a painted surface. -Cleaner property: The condition of removing the roughness when the coated plate that was rough with iron powder and sap was rubbed with water was examined. -Scratches after the treatment: Water was applied to the black-painted plate, and scratches were rubbed 40 times with a prototype clay cleaner, and the degree of scratches on the painted surface was examined. -Change in state due to temperature: The oil content was separated and the change in hardness was examined after it was placed in a constant temperature bath at 50 ° C for 8 hours.

Judgment ◎: Excellent ○: Good △: Somewhat good ×: Not good

[0022]

The composition of the present invention is composed of polybutene, polyisobutylene resin, filler and castor oil, and by changing from clay-like to semi-solid, the composition of coating film etc. can be obtained without impairing adhesion and friction resistance. The surface dirt and foreign matter removal performance has been improved. In particular, when castor oil is used together, the foreign matter removing effect is not impaired, the adhesion on the foreign matter-adhering surface is reduced, the slip is improved, and the workability is improved by eliminating the adhesion to the hand during work.

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Claims (1)

[Claims] 1. A molecular weight of 500 to 3000, a kinematic viscosity (10
0 ° C.) 2 to 5700 cst polybutene resin 5 to 5
0 wt%, molecular weight 10,000 to 600,000, viscosity (at 200 ° C)
Polyisobutylene resin 5 having a 5,000 to 100,000 cst
~ 50wt%, average particle size 0.1 ~ 20μ, oil absorption 15 ~
In a composition composed of 30 to 90 wt% of a filler having an amount of 55 cc / 100 g as an essential component, castor oil was added in an amount of 0.
Clay-like cleaner with less stickiness, characterized by containing 5 to 20 wt%.