KR101798393B1 - Floor wax resistant agent, method for producing wood based panel by addind the same thereto, and the wood based panel - Google Patents

Abstract

Thereby providing an inner floor wax agent excellent in inner floor wax resistance.
As a floor wax, wax and a petroleum resin are used in a predetermined ratio in combination, and a specified petroleum resin is contained in a predetermined ratio, whereby it is found that not only water repellency but also organic components such as floor wax are stable.
That is, it is an inner floor wax agent which is added to the above-mentioned material to improve the inner floor waxy property of the woody board produced by heating and pressurizing the material, wherein the inner floor wax contains 10 wt% or less By weight of a wax and 30 to 10% by weight of a petroleum resin, wherein the petroleum resin is a copolymer of a C5 fraction and a C9 fraction, a combination of a C5 fraction and a C9 fraction, or a combination of the copolymer and the combination And 65 to 20 wt% of the C5 oil fraction and 35 to 80 wt% of the C9 oil fraction with respect to the whole oil.

Description

FIELD OF THE INVENTION The present invention relates to a floor wax, a floor wax, a floor wax, a floor wax, a floor wax,

The present invention relates to a wood board and a wood board such as a particle board, a medium density fiberboard (MDF), and the like which are added to a building material and have floor wax resistance, (Water repellent composition) that improves the water resistance of the floor wax. The present invention also relates to a method for producing a woody board to which the inner floor wax is added, and to the woody board.

Generally, a wood-based board is provided with a water-repellent composition to ensure its water resistance. As such a water-repellent composition, for example, Patent Document 1 or Patent Document 2 exemplifies paraffin wax, petroleum resin, asphalt, silicone resin, fluorine resin and the like. Among them, paraffin wax is often selected in terms of price.

Japanese Patent Publication No. Hei 6-35547 Japanese Patent Publication No. Hei 8-26305

Paraffin wax and other waxes have excellent water repellency and thus impart excellent water resistance to the wax when added to wood-based boards.

On the other hand, when a wood board is used as a building material, for example, as a floor material, a so-called wax coating is applied to the surface of the floor material, and the organic matter contained in the coating agent penetrates the wood board. There is a risk that infiltrated organic components may cause swelling, deformation, discoloration, or other adverse effects on the wood board. At this time, since the wax has affinity with the organic component, the penetration of the organic component into the wood board can not be effectively prevented.

DISCLOSURE OF THE INVENTION As a result of diligent studies to solve the above problems, the present inventors have found that when wax and petroleum resin are used in combination as the inner floor wax at a predetermined ratio, they have good water repellency and also have excellent resistance to organic components including floor wax That is, the inner floor wax property is improved.

That is, the first aspect of the present invention is defined as follows.

1. An inner floor wax agent which is added to a material of a wood board produced by heating and pressing a material to improve the inner floor wax of the wood board,

A wax having an oil content of 10% by mass or less, preferably 5% by mass or less is contained in an amount of 70 to 90% by weight, preferably 76 to 84% by weight,

30 to 10% by weight, preferably 24 to 16% by weight,

Lt; / RTI >

Wherein the petroleum resin is a copolymer of a C5 fraction and a C9 fraction, a combination of a C5 fraction and a C9 fraction, or a combination of the copolymer and the combination,

The C5 fraction is used in an amount of 65 to 20% by weight, preferably 34 to 26% by weight,

The C9 fraction is 35 to 80% by weight, preferably 66 to 74% by weight

Made in my floor wax.

The second aspect of the present invention is defined as follows.

An aqueous emulsion comprising an inner floor wax agent and a surfactant as described in the first aspect.

The third aspect of the present invention is defined as follows.

The aqueous emulsion according to the second aspect, wherein the active ingredient of the surfactant is contained in the aqueous emulsion in an amount of 3 to 20% by weight, and preferably 5 to 15% by weight, based on the internal floor wax.

The term " woody board " used herein refers to a hard fibrous board (hard board), a medium density fibrous board (MDF), a particle board and the like. Means a material usually used for producing a woody board, and specifically includes a woody material such as wood fiber or wood chip chip, which has been subjected to a treatment such as fiberization, small fragmentation or the like depending on the purpose of production , And other materials that do not inhibit the production of the wood board.

The term " addition of " to the above-mentioned raw material of the inner floor wax means that the above-mentioned wood board is used as a " hot press " Means addition of coating, dipping, mixing and the like usually used in the production, and preferably spray application. It may also be applied alone or in combination with an adhesive or the like as a floor wax.

The term " inner floor waxy " as used herein means a penetration resistance to an organic component in a woody board to which an inner floor wax or water repellent composition is added, and indicates a thickness expansion coefficient of a test piece of the obtained woody board (medium density fiber board: MDF) (%) And penetration distance (mm) are used as an index. The test method is as follows.

The resulting wood board (medium density fiberboard: MDF) was cut into 5 cm lengthwise and 5 cm lengthwise test pieces, and the density was calculated from the weight and the external dimensions, and then OPP tape (SEKISUI CHEMICAL CO (Orien tape No. 830, manufactured by RINREI WAX CO., LTD.) Was adhered to a floor wax (all products of RINREI WAX CO., LTD. And the thickness expansion rate of both end portions at a height of 1.5 cm was calculated to determine the degree of infiltration from the end portion to the center portion at a height of 1.5 cm Is measured as the infiltration distance.

In addition to paraffin wax, general waxes used in water repellent compositions such as olefin wax, montan wax, and Fischer-Tropsch wax may be used as the wax. The term " oil content of 10% or less by weight " in relation to the wax of the present invention means a value of oil fraction measured by a measuring method prescribed in JIS K2235 5.6.

The petroleum resin refers to a diolefin contained in a cracked oil fraction produced as a by-product from an ethylene plant which produces ethylene or propylene by steam cracking of petroleum, The monoolefins are polymerized without isolation, and they can be divided into the following three categories. C5 oil is used as the raw material for the cracked oil fraction and C5 oil is used as the raw material for the aliphatic type or C5 type petroleum resin and the aromatic type or the C9 type petroleum resin is used as the raw material. It is a copolymer of oil and C9 oil, and is also called a combination of a C5-polymerized petroleum resin and a C9-polymerized petroleum resin, or a combination of a C5-oil and a C9-oil, or a combination of the copolymer and the above combination.

The main components of the C5-based petroleum resin are copolymers such as isoprene, piperylene, 2-methylbutene-1 and 2, and many of the conjugated diolefins have a cyclization structure (cyclization structure). Its softening point is 70 to 100 degrees. The main component of the C9-based petroleum resin is a copolymer of styrene, vinyltoluene, -methylstyrene, and indene, and its softening point is 80 to 150 degrees. The C5C9 copolymerized petroleum resin is a copolymer (copolymer) of the above C5 and C9, and its softening point is 60 to 100 degrees. The combination of the C5-polymerized petroleum resin and the C9-polymerized petroleum resin is any combination of the above-mentioned C5 and C9, and the softening point thereof is 60 to 150 degrees, and the above combination with the copolymer may be optionally used.

Conventionally waxes and petroleum resins have both been added to ligneous boards to impart water resistance. It is also suggested in Patent Documents 1 and 2 that both are used. More specifically, in Example 2 of Patent Document 1, a combination example of paraffin wax: petroleum resin = 96 parts by weight: 2 parts by weight is disclosed. Similarly, in Example 8 of Patent Document 2, a combination example of paraffin wax: petroleum resin = 96 parts by weight: 1 part by weight is disclosed.

On the other hand, according to the invention described in the first aspect of the present invention, the blending ratio of the wax having an oil content of 10% by mass or less and the petroleum resin is 100% by weight of the internal floor wax, 10 wt%, and the petroleum resin is used as a copolymer of a C5 fraction and a C9 fraction, a combination of a C5 fraction and a C9 fraction, or a combination of the copolymer and the combination, and the C5 fraction is used in an amount of 65 to 20 wt% By making the C9 oil content 35 to 80% by weight, resistance to other organic components such as floor wax is improved.

The total amount of the wax and the petroleum resin in the inner floor wax agent may be 100% by weight. However, other ingredients, for example, 10% by mass or more of oil, may be used as long as the inner floor wax property of the inner floor wax is not impaired. Wax, asphalt, fluororesin or the like in a proportion of less than 20% by weight.

When the wax and the petroleum resin can be melted with each other, the melt can be dispersed in water (dispersion medium) as a dispersoid (dispersoid) to obtain an aqueous emulsion after melting. When a C9 system is adopted as a petroleum resin, it can not be melted with the wax. In this case, the wax and the petroleum resin are each emulsified, and then both are mixed. Of course, the molten wax and the petroleum resin may be separately emulsified and mixed.

Examples of the surfactant to be used in the production of the aqueous emulsion of the present invention include anionic, cationic, nonionic or amphoteric surfactants and water-soluble polymer compounds. These surfactants may be used singly or in combination . Examples thereof are shown below, but the other components are not limited thereto.

Examples of the anionic surfactant include fatty acid salts, polyoxyethylene alkyl ether carboxylic acid salts, dialkylsulfosuccinate salts, alkylbenzenesulfonic acid salts, alkyl ether sulfuric acid ester salts and alkyl phosphoric acid ester salts.

Examples of the cationic surfactant include alkylamine salts, quaternary ammonium salts, and alkylpyridinium salts.

Examples of the nonionic surfactant include polyoxyethylene alkyl ether, polyoxyethylene alkyl phenyl ether, polyoxyethylene sorbitan fatty acid partial ester, and fatty acid diethanolamide.

Examples of the amphoteric surfactant include alkyl betaines, alkylamine oxides, and the like.

Examples of the water-soluble polymer compound include methyl cellulose, carboxymethyl cellulose, chemical starch, gum arabic, polyvinyl alcohol, polyacrylate, styrene-maleic anhydride copolymer salt, and polyethylene glycol.

The aqueous emulsion according to the present invention may contain, in addition to the wax or the petroleum resin, other components required for dispersing or dissolving them in a solvent.

Next, the fourth aspect of the present invention is defined as follows.

A step of preparing an inner floor wax agent described in the first aspect,

A step of adding the inner floor wax agent to the material of the wood board,

And heating and pressing the material to which the inner floor wax is added.

The fifth aspect of the present invention is defined as follows.

Further comprising the step of producing an aqueous emulsion made of said inner floor wax,

Wherein the step of adding the inner floor wax agent to the material comprises applying the emulsion to the material and then drying the emulsion.

The sixth aspect of the present invention is defined as follows.

In the step of adding the inner floor wax agent to the material, the inner floor wax agent is added to the material in an amount of 0.3 to 5% by weight, preferably 0.5 to 2% by weight, ≪ / RTI >

The seventh aspect of the present invention is defined as follows.

A wood board obtained by any one of the manufacturing methods of any of the aspects 4 to 6.

On the other hand, the details of the requirements in the fourth to sixth aspects are the same for the portions overlapping the first and second aspects.

The eighth aspect of the present invention is defined as follows.

A wood-based board to which an inner floor waxy agent described in the first aspect is added to a woody board material,

The wood board was cut to a width of 5 cm and a length of 5 cm to prepare a test piece. The density was calculated from the weight and the external dimensions, and then OPP tape (Oriental Tape No. 830 from Adams Chemicals Co., Ltd.) was stuck on both sides of the test piece. And the thickness expansion rate (%) of the both ends at a height of 1.5 cm was calculated. The thickness expansion ratio (%) was calculated from the end portion at a height of 1.5 cm to the center portion (Mm) of a thickness expansion coefficient (%) of 4.4 or less and the penetration distance (mm) of 0.9 or less, when the distance representing the expansion due to penetration is measured to be the penetration distance (mm).

The wood board according to the present invention is superior to wood board in which a commercially available water repellent agent (Selosol R-170, manufactured by Chukyo Yushi Co., Ltd.) is added, (%) Is 2/3 or less, and the penetration distance (mm) is 1/2 or less, showing excellent inner floor wax effect.

Examples, reference examples and comparative examples confirming the effects of the invention described in the first to eighth aspects will be described below.

In this specification, " parts " refers to parts by weight and "% " refers to parts by weight, unless otherwise specified.

(Reference Example 1)

≪ Preparation of water repellent composition >

90 parts of paraffin wax having a melting point of 56 degrees and an oil content of 2.0% by mass and 10 parts of a C5 type petroleum resin having a softening point of 98 degrees were heated and melted to obtain an internal floor wax agent. As a surfactant, 7.2 parts of potassium salt of styrene-maleic anhydride copolymer, 0.8 part of partially saponified PVA, and 162 parts of water were mixed and heated in 90 DEG C to stir the inner floor wax (wax / resin melt) (Emulsified) while stirring the mixture. And then cooled to obtain an emulsion (water repellent composition of Reference Example 1) having an average particle size (diameter) of 1.5 mu m and a nonvolatile fraction of 40 wt%.

<Production of MDF>

An example of preparing MDF as a woody board is shown.

The water repellent composition obtained in the above-mentioned water-repellent composition was dried at a moisture content of 5% to obtain a water repellent composition in an amount of 0.7% in terms of solid content (made of internal wax) and a polymeric MDI (MILLIONATE MR-200 manufactured by Tosoh Corporation) And 7%, respectively, while spraying with stirring with a blender. Further, the mixture was stirred and dried under a stream of air (stirring and drying) to obtain a wood fiber mixture having a water content of 15%.

<Heat Press Molding>

A wood frame of 40 cm in length and 40 cm in length was placed on a stainless steel molding plate previously coated with mold releasing agents (Rikeizai R-599, a product of heavy-weight holding) on the surface of a stainless steel plate, The wood fiber mixture obtained above was uniformly raised and formed. After removal of the wooden frame, laying the mold plate again a single sheet of stainless steel plate forming process the die separator for 1 minute to a thickness 3mm to 25kgf / cm ² by 180 degrees, a press temperature of hot press hot-press device (熱壓). After molding, MDF was obtained by grinding 0.2 mm from the surface with a sander.

(Reference Examples 2 to 3)

The water repellent composition of Reference Example 2 was prepared in the same manner as in Reference Example 1 except that 80 parts of paraffin wax was used as the internal floor wax and 20 parts of C5 type petroleum resin.

The water repellent composition of Reference Example 3 was prepared in the same manner as in Reference Example 1 except that 70 parts of paraffin wax was used as the inner floor wax and 30 parts of C5 type petroleum resin.

(Comparative Examples 1 to 3)

The water repellent composition of Comparative Example 1 was prepared in the same manner as in Reference Example 1 except that 100 parts of paraffin wax was used as the inner floor wax and no C5 series petroleum resin was used.

The water repellent composition of Comparative Example 2 was prepared in the same manner as in Reference Example 1 except that 95 parts of paraffin wax was used as an internal floor wax and 5 parts of C5 type petroleum resin.

The water repellent composition of Comparative Example 3 was prepared in the same manner as in Reference Example 1 except that 60 parts of paraffin wax was used as the internal floor wax and 40 parts of C5 type petroleum resin.

(Comparative Example 4)

The water repellent composition of Comparative Example 4 uses the product name (Cellozol R-170) sold by Chikyung Kikai Co., Ltd., which is the applicant in Reference Example 1, as an internal floor wax.

&Lt; Evaluation of my floor waxiness &

The MDF obtained in each of Reference Examples and Comparative Examples was cut into 5 cm lengthwise and 5 cm lengthwise test pieces. After the density was calculated from the weight and the external dimensions, OPP tape (Oriental Tape No. 830 from Anthem Chemical Co., Ltd.) was applied to both sides of the test piece and immersed in a floor wax (Rinreisha product) up to a height of 3 cm from the cut portion. 5 minutes later, the thickness expansion ratio (%) of the both ends at a height of 1.5 cm was calculated, and the distance indicating the expansion due to penetration from the end portion at the height of 1.5 cm was measured to determine the penetration distance . The obtained results are shown in Table 1.

Reference Example 1 Reference Example 2 Reference Example 3 Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4
My floor
Wax Petroleum resin C5 series C5 series C5 series C5 series C5 series
R-170 Wax / resin ratio (%) 90/10 80/20 70/30 100/0 95/5 60/40 Board density
(G / cm ³⁾ 0.81 0.80 0.80 0.80 0.79 0.81 0.80
My floor
Wax castle Thickness Expansion Rate
(%) 5.4 4.6 6.2 7.8 6.6 8.0 6.6 Penetration distance
(mm) 1.3 1.1 1.6 2.9 1.9 2.0 1.8

From the results shown in Table 1, it was found that the wood board to which the water repellent composition of Reference Example was added had excellent floor wax resistance and was superior in properties to the water repellent agent sold by Chikyung Co., Ltd., the applicant.

From the results of Comparative Example 2 and Comparative Example 3, it can be seen that the blending ratio of the wax and the petroleum resin is preferably 90% to 70% by weight: 10 to 30% by weight. More preferably, the former is 84 to 76% by weight and the latter is 16 to 24% by weight.

(Reference Example 4 and Examples 1 to 3)

The water repellent composition of Reference Example 4 used a C5C9 petroleum resin (C5 ratio 70%, softening point 72 degrees) as a petroleum resin contained in the inner floor wax in Reference Example 2.

The water repellent composition of Example 1 was a C5C9 petroleum resin (C5 ratio: 60%, softening point: 96 degrees) used as a petroleum resin contained in the inner floor wax in Reference Example 2.

The water repellent composition of Example 2 was a C5C9 petroleum resin (C5 ratio: 50%, softening point: 70 degrees) used as a petroleum resin contained in the inner floor wax in Reference Example 2.

The water repellent composition of Example 3 uses a C5C9 petroleum resin (C5 ratio 30%, softening point 95 degrees) as the petroleum resin contained in the inner floor wax in Reference Example 2.

(Example 4)

The water repellent composition of Example 4 contained 6 parts of a C5 type petroleum resin having a softening point of 98 degrees and a C9 type petroleum resin 14 having a softening point of 94 degrees as a petroleum resin (combination of a C5 oil component and a C9 oil component) Was used, and an emulsion having an average particle size (diameter) of 1.4 mu m and a nonvolatile fraction of 40 wt% was obtained.

With respect to the water repellent compositions of Reference Examples 2 and 4 and Examples 1 to 4, the inner floor wax resistance was tested in the same manner as in Reference Examples 1 to 3. The results are shown in Table 2.

Reference Example 2 Reference Example 4 Example 1 Example 2 Example 3 Example 4 Comparative Example 4

My floor
Wax
Petroleum resin C5 series C5C9 series C5C9 series C5C9 series C5C9 series C5 + C9 mixture

R-170 C5 / C9 ratio (%) 100/0 70/30 60/40 50/50 30/70 30/70
Softening point (℃) 98 72 96 70 95 C5: 98, C9: 94 Wax / resin ratio (%) 80/20 80/20 80/20 80/20 80/20 80/20 Board density (g / cm ³ ) 0.80 0.80 0.80 0.81 0.79 0.78 0.80 My floor
Wax castle Thickness Expansion (%) 4.6 4.5 4.4 4.4 4.3 4.3 6.6 Penetration distance (mm) 1.1 1.0 0.9 0.9 0.8 0.8 1.8

Note 1) In the water repellent compositions of Reference Examples 2 and 4 and Examples 1 to 4, the wax and petroleum resin were emulsion

From the results shown in Table 2, it can be seen that the use of a C5C9 copolymer resin or a C5C9 mixture as the petroleum resin results in further improvement of the inner floor wax resistance. Among the C5C9-based petroleum resins, it is preferable to make the C5 ratio relatively small, and from this viewpoint, the C5 ratio is set to 65% to 20%. More preferably, the C5 ratio is 34 to 26%.

Hereinafter, the C9-based petroleum resin will be examined.

Since the C9-based petroleum resin does not melt with the wax, in Reference Example 5, a water repellent composition was prepared as follows.

&Lt; Preparation method of water repellent composition of Reference Example 5 >

100 parts of paraffin wax having a melting point of 56 ° C and an oil content of 2.0% by mass was heated and melted. 5.0 part of potassium stearate, 0.6 part of partial-effect PVA, and 162 parts of water were mixed and heated at 90 DEG C. The wax melt was added with stirring and emulsified. The mixture was refined with a homogenizer and then cooled to obtain an emulsion having an average particle size (diameter) of 1.5% and a nonvolatile fraction of 40% by weight, including the inner floor wax. 100 parts of a C9 type petroleum resin having a softening point of 94 deg. C were dissolved in 100 parts of toluene. The resin solution was added to an aqueous solution of 12 parts of the ammonium salt of styrene-maleic anhydride copolymer and 45 parts of water while stirring to emulsify. After finishing with a homogenizer, 123 parts of water was added, and toluene was removed under reduced pressure to obtain an emulsion having an average particle size (diameter) of 1.0 mu m and a nonvolatile fraction of 40 wt%. The resulting wax emulsion and resin emulsion were mixed so as to have a wax / resin ratio of 80/20 to obtain the water repellent composition of Reference Example 5.

(Reference Example 6 and Examples 5 to 7)

The water repellent composition of Reference Example 6 was a C5C9 petroleum resin (C5 ratio of 70%) used as a petroleum resin contained in the inner floor wax in Reference Example 5.

The water repellent composition of Example 5 was a C5C9 petroleum resin (C5 ratio: 60%) used as a petroleum resin contained in the inner floor wax in Reference Example 5.

The water repellent composition of Example 6 used a C5C9 petroleum resin (C5 ratio 50%) as a petroleum resin contained in the inner floor wax in Reference Example 5.

The water repellent composition of Example 7 uses a C5C9 petroleum resin (C5 ratio 30%) as a petroleum resin contained in the inner floor wax in Reference Example 5.

(Comparative Examples 5 to 6)

The water repellent composition of Comparative Example 5 was obtained by replacing the petroleum resin contained in the inner floor wax in Reference Example 2 with a rosin-modified glycerin ester having a softening point of 84 degrees.

The water repellent composition of Comparative Example 6 was obtained by replacing the petroleum resin in Reference Example 5 with isobutyl methacrylate resin having a glass transition point of 48 degrees.

The water repellent compositions of Reference Examples 5, 6 and Examples 5 to 7 and Comparative Examples 5 to 6 were also tested for their inner wax resistance in the same manner as in Reference Examples 1 to 3. The results are shown in Table 3.

Reference Example 2 Reference Example 6 Example 5 Example 6 Example 7 Reference Example 5 Comparative Example 4 Comparative Example 5 Comparative Example 6


My floor
Wax
Petroleum resin C5 series C5C9 series C5C9 series C5C9 series C5C9 series C9 series



R-170
rosin
denaturalization
Glycerine ester
Methacrylic acid isobutyl resin C5 / C9
ratio(%)

100/0
70/30
60/40
50/50
30/70
0/100 Wax / resin ratio (%)
80/20
80/20
80/20
80/20
80/20
80/20
80/20
80/20 Board density
(G / cm ³⁾

0.80

0.80

0.81

0.79

0.81

0.80

0.80

0.81

0.79
My floor
Wax castle Thickness Expansion (%)
4.6
4.6
4.4
4.4
4.2
4.5
6.6
7.0
10.2 Penetration distance
(mm)
1.1
1.0
0.9
0.8
0.9
1.1
1.8
2.3
2.6

Note 1) In the water repellent compositions of Reference Examples 5 and 6 and Examples 5 to 7 and Comparative Example 6, the wax and the petroleum resin were independently emulsified

Note 2) In the water repellent composition of Reference Example 2 and Comparative Example 5, the wax and the petroleum resin were emulsion

From the results shown in Table 3, it was found that the C9-based petroleum resin also exhibits excellent inner floor waxability by being used in a predetermined ratio with the wax.

Further, it can be seen that the wax component and the petroleum resin component constituting the water repellent composition have the equivalent inner wax performance even if they are emulsified after melting and emulsified independently of each other if they can be melted.

(Comparative Example 7)

The water repellent composition of Comparative Example 7 used paraffin wax having a melting point of 51 degrees and an oil content of 20.8% by mass in place of the paraffin wax having a melting point of 56 degrees and an oil content of 2.0% by mass in Example 3. In the same manner as in Example 3, except for the preparation of the water repellent composition, the preparation of the MDF, and the hot press molding, the obtained MDF was tested for the inner floor waxiness. The results are shown in Table 4.

Example 3 Comparative Example 7

My floor wax Oil (% by mass) 2.0 20.8 Petroleum resin C5C9 series C5C9 series C5 / C9 ratio (%) 30/70 30/70 Softening point (℃) 95 95 Wax / resin ratio (%) 80/20 80/20 Board density (g / cm ³ ) 0.79 0.79
My floor wax castle Thickness Expansion (%) 4.3 7.6 Penetration distance (mm) 0.8 2.4

From the results shown in Table 4, it was found that excellent floor wax resistance is exhibited by using a wax having an oil content of 10% by mass or less.

The present invention is not limited to the description of the embodiments of the present invention at all. Various modifications are also included in the present invention to the extent that those skilled in the art can readily conceive of the present invention without departing from the scope of the claims.

In the above example, the water repellent composition comprising the inner floor wax of the present invention is used solely in wood board, but it can be applied to other materials such as paper, fiber, cement, soil improving material and the like.

Selection of wax, petroleum resin and surfactant constituting the water repellent composition, and addition amount to the material to be applied such as wood board are arbitrarily selected depending on the use of the material to be applied.

Claims (8)

The present invention relates to a floor wax-resistant floor wax agent which is added to the above-mentioned material to improve the floor wax resistance of the wood board,
Wherein 100 wt% of the inner floor wax contains 70 to 90 wt% of wax having 10 wt% or less of oil and 30 to 10 wt% of petroleum resin,
The petroleum resin may be a copolymer of a C5 fraction and a C9 fraction, a combination of a C5 fraction and a C9 fraction, or a combination of the copolymer and the combination,
The C5 fraction is 65 to 20 wt%
The C9 fraction is contained in an amount of 35 to 80%
Made from my floor wax.
An aqueous emulsion comprising the inner layer wax of claim 1 and a surfactant.
3. The method of claim 2,
Wherein an effective component of the surfactant is contained in an amount of 3 to 20% by weight based on the internal floor wax.
Preparing an inner floor wax agent of claim 1;
A step of adding the inner floor wax agent to the material of the wood board,
A step of heating and pressing the material to which the inner floor wax is added
&Lt; / RTI &gt;
5. The method of claim 4,
Further comprising the step of producing an aqueous emulsion made of said inner floor wax,
Wherein in the step of adding the inner floor wax agent to the material, the emulsion is applied to the material and then dried.
5. The method of claim 4,
Wherein, in the step of adding the inner floor wax agent to the material, the inner floor wax agent is added to the material in an amount of 0.3 to 5 wt%.
A wood board obtained by the method of any one of claims 4 to 6.
A wood-based board to which the floor wax of claim 1 is added to the wood-based board material,
The wood board was cut into 5 cm lengthwise and 5 cm lengthwise test pieces, and the density was calculated from the weight and the external dimensions. Thereafter, OPP tape was stuck on both surfaces of the test piece, The thickness expansion rate (%) at both ends at a height of 1.5 cm was calculated, and the expansion due to penetration from the end to the center at a height of 1.5 cm was calculated (Mm), and a thickness expansion rate (%) of 4.4 or less and a penetration distance (mm) of 0.9 or less.