KR100394968B1 - Flooring Product including a Product for Ondol - Google Patents

Abstract

The present invention relates to a floor covering floorboard material comprising the ondol,

To improve the dimensional stability, which is a fundamental disadvantage of wood, to provide workability with concrete floors, ease of partial repair and rework, and to be applicable for ondol; Side inserts on both sides in the longitudinal direction of the unit disc, in which plywood, solid wood, high-density fiberboard, or cut-off plates are used as the base plate, and the original boards on which veneer, high-pressure melamine laminated plates or low-pressure melamine laminated plates are attached, are cut to a predetermined length and width. Forming a side accommodating part, forming an end inserting part and an end accommodating part on both end faces, and applying a synthetic rubber-based hot melt adhesive developed on the back side to be suitable for ondol, and attaching a release paper thereon; It can be installed between floorboards and floorboards without the use of additional adhesives, and can be used at the same time as construction does not cause odor due to adhesives, and minimizes defects caused by dimensional changes between floorboards and floorboards. In addition, according to the sound insulation and sound-absorbing properties that the rubber component of the pressure-sensitive adhesive to be applied to provide a flooring flooring material comprising an ondol for advantageous noise reduction.

Description

Flooring flooring material including ondol {Flooring Product including a Product for Ondol}

The present invention relates to a floorboard for rural flooring, and more particularly, to improve the dimensional instability due to heat and moisture, and excellent construction properties without the need to apply a separate adhesive to the concrete floor or to install a separate auxiliary material during construction On the floor flooring for flooring construction, which provides excellent convenience in reducing noise by providing sound absorbency and sound insulation as well as providing a lot of convenience, cost and time saving effect even when dismantled for partial repair or reconstruction. It is about.

As a general method of construction of floorboards, it is possible to apply floor adhesives, ie, two-part epoxy and urethane adhesives directly onto concrete floors,

Float type, that is, PP (polypropylene) or PE (polyethylene) sheet having moisture blocking function on the concrete floor is installed on the floor to be installed, and then PE (polyethylene) component to give the floor smoothness and cushioning After constructing the foam secondaryly, apply it by applying vinyl acetate adhesive between the tongue and groove formed for bonding to the side of the parquet plate forming the floorboard thereon. Has been.

The floorboard constructed by using the conventional front adhesive method as described above is to apply a two-component epoxy adhesive 2 ~ 2.5kg / ㎡ in need of a hardening material for expensive hardening on the concrete floor to the floorboard construction Cured epoxy adhesive is mainly to prevent the shrinkage, expansion caused by the moisture of the floorboard material using a natural material to secure the dimensional stability of the floorboard material. On the other hand, when securing the dimensional stability obtained in this way requires the repair or reconstruction of the floorboards, there is a problem that a huge amount of manpower and time must be invested in the removal.

In addition, the floorboard to be constructed using the above-mentioned floating method is the first installation of expensive PE (polyethylene) sheet with a thickness of 0.1 ~ 0.2mm on the concrete floor first, and also the expensive PE (polyethylene) foam (foam) 2 After adjusting the smoothness of the floor by the construction, the floorboard material formed so as to form a pair of a tongue protruding for bonding and a groove for inserting and coupling the tongue to the tongue and the groove portion formed on each It is started by applying vinyl acetate-based adhesives and bonding them continuously. Thus, the floorboard material provided as a part is made into an integral floorboard, and the gap between the board and the board is suppressed to prevent the occurrence of a gap between the floorboard material and the moisture change. The construction method to secure the dimensional stability consists of product integration due to the side adhesion of the floorboard material. There is difficulty in repairing, and if there is a space between floorboard and floor due to unevenness of concrete floor, noise occurs when walking on floorboard or it has a fatal effect on dimensional stability of floorboard when peeling side adhesive part. There was a problem.

There have been several attempts in the art to solve the above problems.

For example, US Patent No. 5283102 of Premier Wood Floors, issued to James C, Sweet, et al., US Pat. No. 5894700 to Triangle Pacific Corporation, issued to James C, Sweet, and US Pat. No. 5900099 to James C, Sweet, et al. The prior art shown in the present invention has proposed a method of using a synthetic rubber-based hot melt adhesive on the back surface of the floorboard to solve the problems of the construction method described above. They tried to improve the problems of the existing front adhesive or floating construction method by using synthetic rubber hot melt adhesive on the back surface of floorboard material, but this is due to heat instability which is the biggest disadvantage of synthetic rubber hot melt adhesive. In areas where heating devices are cold, the floorboard material, which is a natural material, cannot be deformed due to moisture deformation. Therefore, the connection part of the floorboard material is opened, causing cracks and dust. When applied to a place where heating is conducted, especially when the indoor floor temperature is maintained for 40 to 50 degrees Celsius for a long time in winter, the adhesive force of the hot melt adhesive does not suppress the dimensional change due to the moisture change inside the floor board, and thus the gap between the floor board materials is prevented. Fatal defects such as occurrences will occur.

In addition, the prior art shown in US Pat. No. 6101778 of Perstorp Flooring AB and US Pat. No. 6209278 to Kronotex GmbH, issued to Detlef Tychsen, has shown that HPM (high pressure melamine laminate) or LPM (low pressure melamine laminate) on the surface and backside of a cut sheet and a fiber board. By using a disk with surface material attached to the surface material, etc., it is processed to form a tongue and a groove including a special form of uneven structure by utilizing the processing characteristics that are advantages of a sheet board and a fiber board. Unlike the method of simply inserting and combining floorboards and floorboards by tongues and grooves applied to floorboards, the floorboards and floorboards can be fixed and joined at the same time as they have interlocking concave-convex structures. The dimensional stability was improved by responding to the deformation caused by the change of moisture between floorboards. However, in the same way as in the case of the existing floating construction method, the expensive PE sheet and the expensive PE foam are doubled to improve the smoothness and cushioning of the floor. As floor boards must be installed on the floor, the complexity of the construction method and the cost burden according to the construction subsidiary materials are also a problem.In addition, when the concrete floor is unevenly formed, problems in the connection part between floor boards can be solved, but fundamentally Noise problems and slack in walking due to non-uniformity of the floor are still a problem.

As described above, various floorboards of the prior art do not have dimensional stability due to shrinkage and expansion, which are disadvantages of wood due to the manufacturing method, construction method, and construction environment, and are accompanied by repair and reconstruction due to defects. Due to the difficult and complicated process of dismantling, it is a problem to adequately meet the enormous demand for floor floorboards including ondol floor, which is expected to be created in the future, given the consumer's desire for natural materials.

In order to solve the problems of the prior art as described above,

An object of the present invention is manufactured by using a disc, veneer, HPM or LPM attached on the plywood, solid wood, high density fiber board (Particle board) as a base plate, in consideration of thermal properties The synthetic rubber-based hot melt adhesive developed to be suitable for attaching to the back surface of the floorboard material and a release paper for maintaining adhesive performance thereon is attached, and special inserts and receiving portions of different shapes are formed on both sides and both ends in the longitudinal direction, respectively. It can be installed between floorboards and floorboards without the use of additional adhesives, and can be used at the same time as construction does not cause odors caused by adhesives, and stabilizes the dimensional change between floorboards and floorboards. Improved dimensional stability, which is a disadvantage, and ease of construction and partial repair and reconstruction with concrete floor W, and to contribute to popularization of wood plate material by providing a closed bottom floor plate material for containing a beneficial for under-floor heating in noise reduction, depending on the material characteristics including the sound insulation and sound absorption.

1 is a perspective view showing a floorboard according to the present invention.

Figure 2 is a cross-sectional view in the width direction showing an embodiment according to the present invention,

3 is an exemplary view showing a construction method of a floorboard according to the embodiment of FIG.

Figure 4 is a cross-sectional view in the width direction showing another embodiment according to the present invention.

5 is an exemplary view showing a construction method of a floorboard according to the embodiment of FIG.

Figure 6 is a longitudinal cross-sectional view showing the form of both ends of the floorboard according to the invention.

Figure 7 is a longitudinal cross-sectional view showing another example of the form of both ends of the floorboard according to the invention.

8 is an exemplary view showing a construction example of a floorboard according to the present invention.

FIG. 9 is a partially enlarged view showing portion A of FIG. 8 in detail.

FIG. 10 is an enlarged view of a portion B of FIG. 8 in detail from another angle; FIG.

* Description of the symbols for the main parts of the drawings *

7,67: side protrusion 9: side downward protrusion

11,69: Upper side groove 13,71: 1st corner

15,75: side insert 21,81: horizontal side groove

23,: side downward groove 25,83: side upward protrusion

27,85: 2nd corner standard 30,90: measuring part

33: end downward projection 35: end upper groove

40: end insertion portion 41: end upward projection

43: end lower groove 45: end receiving portion

50: hot melt adhesive 55: release paper

The present invention for realizing this

Plywood, solid wood, high-density fiber board or cut plate is the base plate, and the upper and lower parts of the base plate made of integral structure through cold or hot pressing processing of veneer, high pressure melamine laminated plate (HPM) or low pressure melamine laminated plate (LPM) In the floor finishing flooring material manufactured by using a unit disc formed by cutting to a predetermined length and width,

A side accommodating portion is formed at one side end in the longitudinal direction and the other side end portion;

An end receiving portion is formed at the other end and an end inserting portion at one end in the longitudinal direction;

Synthetic rubber-based hot melt adhesive is applied to the back side, and is formed by attaching a release paper on the adhesive;

When the construction is coupled to the side receiving portion formed in the adjacent floorboard material pre-installed at the same time, the end projection provided at one end is coupled to the end recess groove provided in the adjacent finishing plate material pre-constructed It provides a flooring floorboard material comprising a hot melt adhesive attached to the back surface for the ondol is bonded to the bottom at the same time.

In the floorboard material of the present invention formed as described above, the side insertion portion and the side receiving portion formed on both sides of the flooring and the floorboard material is continuously fixed in the width direction and at the same time the hot melt adhesive adhered to the bottom It is to be adhered to the surface to facilitate the close contact between the floorboard material, and the end insertion portion and the end receiving portion formed on both ends of the floorboard material serves to fix the floorboard material and floorboard material in the longitudinal direction.

In addition, the hot-melt adhesive according to the present invention, which is mainly composed of synthetic rubber, is a solvent-free adhesive that is harmless to the human body, and the role of the adhesive is to adhere and fix the concrete floor having a rather rough surface and a plate-like floorboard, and a floorboard made of wood. The ash plays a role in adapting to any deformation that may occur in the wood, such as shrinkage and expansion, depending on the heating conditions and the moisture content of the residential environment. It gives a sound absorbing and sound absorbing to absorb or block.

Moreover, when the existing floorboards are dismantled at the end of the life span of the floorboards or when installing other floorboards or floorings at the request of the consumer, the conventional bonding method, the front adhesive method and the floating type, require considerable manpower, time and cost. Although this is necessary, it has the advantage of facilitating partial and total dismantling even easily and easily when repairing or reworking.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a perspective view showing a floor board according to the present invention, Figure 2 is a cross-sectional view in a width direction showing an embodiment according to the present invention, Figure 3 shows a construction method of the floor board according to the embodiment of FIG. This is an example.

4 is a cross-sectional view showing another embodiment according to the present invention in a width direction, Figure 5 is an exemplary view showing a construction method of the floorboard according to the embodiment of Figure 4, Figure 6 is a floorboard according to the present invention It is a longitudinal cross-sectional view showing the form of both ends of, Figure 7 is a longitudinal cross-sectional view showing another example of the form of both ends of the floorboard material according to the present invention.

8 is an exemplary view showing a construction example of the floorboard according to the present invention, Figure 9 is a partially enlarged view showing a detail of the portion A of Figure 8, Figure 10 is a detailed view of the B portion of Figure 8 from another angle It is a partial magnification.

Example 1

As a preferred embodiment of the present invention, as shown in Figures 2 and 3, protruding laterally from one side central portion is provided with an arc-shaped curved portion (2) at the end and the upper / lower surface (4) (6) is Side projections 7 formed to have a predetermined angle of inclination,

And a side downward protrusion 9 protruding downward at a point where the bottom surface 6 of the side protrusion 7 ends,

The side upward groove 11 which is indented continuously upwards in the inside of this side downward projection 9, and

The side insertion part 15 including a first reference edge 13 formed to have a predetermined side marginal angle α at an upper side end of the side protrusion 7;

Side horizontally formed at the inner side of the other side of the concave side formed with an arc-shaped base portion 16 at the inner end and the upper / lower (18, 20) is formed to have a predetermined inclination angle to narrow toward the inner side With a groove (21),

A side downward groove 23 which is formed indented continuously downward at a point where the bottom surface 20 of the side horizontal groove 21 ends;

A side upward protrusion 25 extending outwardly of the side downward groove 23 and positioned at the extreme end and protruding upward;

A side accommodating part 30 is formed on the side horizontal groove 21 and includes a second reference edge 27 formed to have a predetermined side clearance angle β at a side end thereof. );

As shown in Figure 6, the end surface protrudes in the longitudinal direction from the upper end surface to have a predetermined cross-sectional margin angle (γ), the lower end projection 33 is formed projecting downward on the bottom end An end inserting portion 40 formed to have an end upper groove 35 indented upwardly inwardly of the end downward protrusion 33;

Protruding in the longitudinal direction from the other end of the lower end surface located opposite to the end inserting portion 40, and provided with an upper end projection (41) protruding upward on the upper end of the end portion, the end upward projection (41) End receiving portion (45) having a pair of end inserting portion 40 is provided with a lower end groove 43 is formed indented downward in the inner side; And

It provides a flooring floorboard material comprising a synthetic rubber-based hot-melt adhesive (50) applied to the back surface and the release paper 55 attached to the adhesive (50) to prevent curing of the adhesive.

In the floorboard material according to the present embodiment, as shown in FIG. 3, the side receiving part 30 provided in the adjacent floorboard material which is constructed with the first reference edge 13 of the side insertion part 15 during construction. By abutting the 2nd reference edge 27 of) and constructing it by circular motion of this tangent line to an axis,

The side projections 7 of the side inserting portion 15 are pre-constructed in the side horizontal grooves 21 of the side receiving portion 30 formed in the finishing plate to be adjacent to the side projections 9 is the side receiving portion The side downward grooves 23 of the 30, the side upward grooves 11 are interlocked with the side upward projections 25 of the side receiving portion 30, respectively,

In addition, as the side inserting portion 15 is inserted into the side receiving portion 30 formed in the pre-installed adjacent floorboard material, the end downward projection 33 of the end inserting portion 40 is adjacent to another pre-installed portion. In the end lower groove 43 of the end receiving portion 45 of the floorboard material, the end upper projection 41 of the end receiving portion 45 is inserted into and interlocked with the end upper groove 35, respectively,

In addition, the hot melt adhesive 50 attached to the rear surface is inserted into the side receiving portion 30 provided in the adjacent floorboard material in which the side inserting portion 15 is pre-constructed, and at the same time, is adhered to the bottom surface.

Example 2

As another preferred embodiment of the present invention, as shown in Figs. 4 and 5, protruding laterally from one side central portion is provided with an arc-shaped curved portion 62 at the end and the lower surface than the upper surface 64 (66) And side projections 67 are formed to be wider,

At the point where the lower surface 66 of the side protrusion 67 ends, the side upward groove 69 is further indented, and a predetermined side clearance angle δ at the upper side end of the side protrusion 67. A side insertion part 75 including a first reference edge 71 formed thereon;

A side horizontal groove 81 having a lower base 80 having an arc-shaped base portion 76 at the inner end and having a lower surface 80 formed wider than the upper surface 78 as being concavely formed laterally from a central portion of the other side surface;

A side upward protrusion 83 extending from a point at which the bottom surface of the side horizontal groove 81 ends and positioned at the extreme end and protruding upward;

A side accommodating part paired with the side insertion part 75 includes a second reference edge 85 formed to have a predetermined side clearance angle ε at the upper side end of the side horizontal groove 81. 90;

As in <Example 1>, as shown in FIG. 6, the protruded in the longitudinal direction from the top of one end surface so that the shortest surface has a predetermined cross-sectional margin angle (γ), protrudes downward on the bottom of the shortest end thereof. An end insertion part 40 having an end downward protrusion 33 formed therein and having an end upper groove 35 formed indented upwardly inside the end downward protrusion 33;

Protruding in the longitudinal direction from the other end of the lower end surface located opposite to the end inserting portion 40, and provided with an upper end projection (41) protruding upward on the upper end of the end portion, the end upward projection (41) End receiving portion (45) having a pair of end inserting portion 40 is provided with a lower end groove 43 is formed indented downward in the inner side; And

It provides a flooring floorboard material comprising a synthetic rubber-based hot-melt adhesive (50) applied to the back surface and the release paper 55 attached to the adhesive (50) to prevent curing of the adhesive.

The floorboard material according to the present embodiment is also similar to the floorboard material of <Example 1> when the side is provided in the adjacent floorboard material when the first reference edge 71 of the side insertion portion 75 is constructed By abutting the second reference edge 85 of the receiving portion 90 and constructing this tangent circle in an axis,

The side projection 67 of the side insertion portion 75 is pre-constructed in the side horizontal groove 81 of the side receiving portion 90 formed in the closing plate to be adjacent to, the side receiving portion 69 in the side receiving portion Side upward projections 83 of 90 are interlocked with each other,

In addition, as the side insert portion 75 is inserted into the side receiving portion 90 formed in the pre-installed adjacent floorboard material, the end downward projection 33 of the end insert portion 40 is adjacent to the other pre-installed. In the end lower groove 43 of the end receiving portion 45 of the floorboard material, the end upper projection 41 of the end receiving portion 45 is inserted into and interlocked with the end upper groove 35, respectively,

In addition, the hot melt adhesive 50 attached to the rear surface is inserted into the side receiving portion 30 provided in the adjacent floorboard material in which the side inserting portion 15 is pre-constructed, and at the same time, is adhered to the bottom surface.

As described above, the two embodiments have only a slight difference in form between the side inserts 15 and 75 and the side accommodating parts 30 and 90, which form one of the main parts of the present invention. Other parts included are the same.

In addition, as another example of the end insertion portion 40 and the end receiving portion 45 provided in the two embodiments, as shown in Figure 7, the end downward projection formed in the end insertion portion 40 ( An inclined surface 95 is provided below the end surface of the end portion 33, and the inner side end surface 43 formed in the end accommodating portion 45 interlocked with the inclined surface 97 also includes the inclined surface 97. Can be.

In addition, the side clearance angles formed in each of the above embodiments are all provided to add convenience and ease in construction, and the cross-sectional margins (γ) formed at the end insertion part 40 are also continuously constructed floorboard materials. In order to make it easy to install in place correctly at the time of construction, it is preferable to form in the angle of 5 degrees-10 degrees each.

Hereinafter, a method of manufacturing an embodiment of the present invention as described above will be described in more detail.

The floorboard material according to the present invention is based on plywood, wood board, high-density fiber board or cut plate, the upper and lower parts of the base board cold or heat veneer, high pressure melamine laminated board (HPM) or low pressure melamine laminated board (LPM) It is manufactured using a unit disc which is formed by cutting a disc manufactured in an integral structure through pressing into a predetermined length and width.

The disc is composed of 6 ~ 9mm plywood, wood board, high density fiberboard or cut plate laminated 0.3 ~ 0.6mm veneer, LPM or HPM pressed on top and bottom of the base plate, this process is a thermal pressure of 110 ~ 150 degrees The press is integrally formed at a pressure of 7 to 10 kg / cm 2 by pressing, and the disc thus formed is cut into a predetermined width and length to form a unit disc.

The unit disc is used to process the side inserting portion and the side receiving portion according to the <Example 1> or <Example 2> on both sides using a precision processing cutter for wood called Tenoner,

Here, in the case of <Example 1>, the side downward protrusions 7 and the side upward grooves 9 and the side downward grooves 23 and the side recesses provided in the side inserting portion 15 and the side receiving portion 30 are provided. The upward protrusion 25 is an important part that can be fixed in close contact with the floorboard material and the floorboard material without any gap in construction.

In a state where the first reference edge 13 of the side inserting portion 15 and the second reference edge 27 of the side receiving portion 30 are brought into contact with each other, without a collision in consideration of a circular motion around this tangent axis, It is machined for construction.

In the case of <Example 2>, the side protrusion 67, the side upper groove 69, and the side accommodating portion 90, which are formed in the side insertion portion 75, are provided in the same manner as in the case of <Example 1>. The horizontal horizontal groove 81 and the side projections 83 are important parts that can be closely adhered to each other without gaps in construction by connecting the floorboard material and the floorboard material. It is machined so that it can be installed without collision in consideration of the circular motion with the tangential axis between (73).

Subsequently, the end inserting portion 40 and the end receiving portion 45 are respectively processed by using a wood cutting machine for the longitudinal end surface, respectively, as shown in FIGS. 6 and 7. End downward projections 33 and the upper end grooves (35) formed in the end, the upper end grooves 43 and the upper end projections (41) formed in the end accommodating portion (45) when connecting the floorboard material and floorboard material, Once bonded to the bottom surface by the applied synthetic rubber-based hot melt adhesive (50) is to move horizontally impossible to adhere to the floor board material was difficult to adhere to the construction at the same time to be in close contact with the construction to enable a close installation The reason for having the cross section margin γ is also for the same reason.

Subsequently, the floorboard of the present invention is a synthetic rubber-based hot melt adhesive on the back of the floorboard after processing both sides and both ends as described above in the hot melt applicator of SLAUTTERBACK of the United States between 140 ~ 160 degrees After melting, 200 ~ 250g / m2 is applied to the bottom of the floorboard, cooled, and finished by attaching a release paper thereon.

It will be described in more detail with respect to the synthetic rubber-based hot-melt adhesive according to the invention to be applied to the back surface of the floorboard material to be one of the main parts constituting the present invention.

Synthetic rubber-based hot melt adhesive used in the present invention used a hot melt adhesive modified for Korean ondol separately from the hot melt adhesive developed in the prior art.

The hot melt pressure-sensitive adhesive used in the present invention uses a styrene-containing rubber component as a base polymer, and various additives are added thereto so as to meet each purpose.

The base polymer absorbs or disperses the impact sound caused by walking or an external impact by using an adhesive rubber component as a base polymer. Specifically, styrene-isoprene-styrene (hereinafter, referred to as styrene-isoprene-styrene) is used. SIS) and styrene-butadiene-styrene (hereinafter referred to as `` SBS '') can be used alone or in combination, SIS 10-20% by weight based on the total hot melt pressure-sensitive adhesive composition And 15-25% by weight of SBS.

The SIS contains 10-20% by weight of styrene, and the SIS used is a triblock having a diblock content of 1% or less to improve heat resistance, and has a melt index. 8-14 and the Brookfield viscosity (toluene solution, 25 degreeC) are used with the thing of 500-1,600.

The SBS contains 30-50% by weight of styrene, and the SBS used here is also a triblock having a diblock content of 1% or less for improving heat resistance, and has a melt index of 1 to 1. 23, Brookfield viscosity (toluene solution, 25 degreeC) is used that is 450 to 9,000.

In order to impart TACKITICITY of the base polymer, a tackifier is added in an amount of 50 to 60 wt% based on the hot melt adhesive composition. The content of the tackifier is such that the bottom does not move during construction of the bottom plate material, so that proper adhesiveness may be imparted in consideration of peeling properties during rework. As the tackifier, various tackifier resins of various kinds can be generally used, and the following resins may be enumerated depending on the monomer source to be polymerized. For example, C4 aliphatic hydrocarbons, C5 aliphatic hydrocarbons obtained by decomposition of petroleum, naphtha and the like, mixtures thereof or any hydrocarbons thereof, such as isoprene and 1,3-pentadiene in C5 aliphatic hydrocarbons, etc. Aliphatic hydrocarbon resin as main raw material; Aromatic hydrocarbon resins containing, as main raw materials, styrene derivatives and indenes in C9 aliphatic hydrocarbons obtained by decomposition of petroleum and naphtha; Aliphatic / aromatic copolymerized hydrocarbon resins obtained by copolymerizing arbitrary aliphatic hydrocarbons of C4 and C5 aliphatic hydrocarbons with C9 aliphatic hydrocarbons; Alicyclic hydrocarbon resins hydrogenated with aromatic hydrocarbon resins; Synthetic terpene hydrocarbon resins having a structure containing aliphatic, alicyclic and aromatic; Terpene hydrocarbon resin which uses (alpha), (beta) -pinene in terpene oil as a raw material; Cumalon indene hydrocarbon resin which uses indene and styrene in a coal-tal naphtha as raw materials; Low molecular weight styrene resin; Rosin-type resin, such as rosin and rosin ester, is mentioned. In the embodiment according to the present invention was used a hot melt adhesive using an aliphatic C5 hydrocarbon as a tackifier.

In addition, the hot melt adhesive of the present invention further includes various additives in order to enhance various physical properties such as heat resistance and adhesive strength. The additives can be defined by those of ordinary skill in the art, the composition and content thereof. For example, a hot melt adhesive, a softener, a heat stabilizer, a plasticizer, a viscosity modifier, an interfacial adhesion promoter, a filler, an anti-aging agent and an ultraviolet absorber are used. For example, softeners such as dioctyl phthalate, dibutyl naphthalate, machine oil, process oil, polybutene, waxes such as petroleum paraffin wax, polyolefin wax, microwax having a melting point of about 40 to 65 ° C, carbonic acid Fillers such as calcium, zinc oxide, titanium oxide, silica, plasticizers such as paraffin oil, and phenol or bisphenol organic compounds, and antioxidants such as metal soaps.

The hot melt pressure-sensitive adhesive of the present invention is prepared by uniform melting by stirring a mixture of SIS, SBS, a tackifier and other additives as described above under heating, which is particulate, flake, pellet, or rod-shaped, depending on the application. Molding while cooling with. After filling the hot melt pressure-sensitive adhesive composition prepared in the hot melt applicator, it is heated to a softening point and used to apply a predetermined thickness during the construction of floorboard material in the molten state.

The hot melt pressure-sensitive adhesive composition according to the present invention has a melt viscosity of 10000 ~ 15000 cps, a softening point of about 89 ~ 95 ℃, the adhesion and peel strength test results, it can be seen that it has a suitable physical properties for the use of floorboard material. In addition, it is possible to facilitate the workability of the floorboard material by not using a separate adhesive aid during construction of the floorboard material.

Hereinafter, as an example regarding the composition ratio of the hot melt adhesive used for this invention,

To prepare a hot melt adhesive, as shown in Table 1 below, the base polymer and the additives were mixed and uniformly mixed at 170 ° C. for 1 hour, followed by cooling.

Furtherance Base Polymer (wt%) 1 Tackifier (wt%) 2 Plasticizer (% by weight) 3 Antioxidant (% by weight relative to 1 + 2 + 3) Filler (% by weight of base polymer) SIS SBS Example 1 15 20 55 10 0.5 10 Example 2 20 20 50 10 0.5 Comparative Example 1 40 - 50 10 0.8 SIS type: Triblock, melt index: 8 to 14, Brookfield viscosity (toluene solution, 25 ° C): 500 to 1600 cps Source: Exxon Mobil Chemical, Shell Chemical ChemistrySBS type: Triblock, melt index: 1 to 23, Brook Field Viscosity (toluene solution, 25 ° C): 450 to 9,000 cps Source: Exxon Mobil Chemical, Shell Chemical Chemistry Tackifier: Aliphatic hydrocarbon softening point (RB): 98 ° C, Mn: 1,025, Mw: 1,895, DP: 1.85 : Hercules Inc. Plasticizer Type: Paraffin Oil Paraffin Carbon (%): 65, Naphtha Carbon (%): 35 Flash Point:〉 266 ℃, Pour Point: -6 ℃ Source: ESSO Antioxidant Product Name: Irganox 1010 : Ciba-Geigy Filler Product name: Zeosil 155 Supplier: Rhodia Kofran Co.Ltd.

Physical properties were measured in the following manner to determine whether the hot melt adhesive prepared in the above example was applied to the floorboard, these results are shown in Table 2 below.

1. Melt viscosity: measured using a Brookfield viscometer at 180 ℃.

2. Glass transition temperature: measured by DMTA.

3. Softening point: Measured by ring ball test.

4. Adhesiveness: Measured by Texture Analyzer (contact pressure: 100gf, test speed: 5mm / min, measuring temperature 20 ℃, contact time: 1 second)

5. Peel strength was measured by KS F 3104. (However, the test piece was manufactured by bonding plywood floorboard and concrete block using synthetic rubber hot melt adhesive.)

Properties Example 1 Example 2 Comparative Example 1 Melt viscosity 15,000 10,000 35,800 Tg -15 ℃ -15 ℃ -18 ℃ Softening point 95 ℃ 89 ℃ 78 ℃ Sticky 300 450 510 Peel strength 1.1 1.4 1.8

Since the preparation of the pressure-sensitive adhesive may be used in the residential environment of the ondol where heat is transferred to the pressure-sensitive adhesive surface, heat resistance must be basically provided, and appropriate adhesiveness and peelability must be provided at the same time. will be.

Although the present invention has been described in detail only with respect to specific embodiments as described above, it is apparent to those skilled in the art that modifications and changes can be made within the scope of the technical idea of the present invention, and such modifications or changes are patents of the present invention. Will belong to the claims.

As described above, the floorboard material according to the present invention has the side insertion part and the side receiving part on both sides, and the end insertion part and the end receiving part on both sides of the dimensional change according to the moisture change, which is the biggest disadvantage of the wood, which was a problem of the prior art. By applying each part, it is possible to block natural defects such as gaps in the construction of floor boards.

Since the hot melt adhesive is attached to the floorboard itself, it is easy to install the floorboard material by applying it directly to the floor after removing the backing paper without applying a separate adhesive to the concrete floor or pre-installing additional auxiliary auxiliary materials. At the same time, it provides a lot of convenience, cost and time savings even when dismantling according to the needs of repairing or rebuilding floorboards.

In addition, the rubber component of the hot-melt adhesive has an excellent sound absorption and sound insulation to absorb or block the impact sound when walking or outside, and has an excellent effect on noise reduction,

In addition, the production method of the floorboard material according to the present invention together with the side inserting portion and the side receiving portion and the end inserting portion and the end receiving portion according to the present invention by utilizing the existing equipment without changing the method of manufacturing the existing floorboard material Part can be processed, and by installing an additional hot melt applicator that can apply hot melt adhesive to the final process, by applying pressure sensitive adhesive, it is possible to manufacture floorboards that provide excellent functionality and constructability while minimizing the cost burden of additional processes. It is to have an effect.

Claims (5)

Plywood, solid wood, high-density fiber board or cut sheet is used as the base plate, and the upper and lower parts of the base plate made of integral structure through cold or heat pressing processing of veneer, high pressure melamine laminated plate or low pressure melamine laminated plate are prescribed length and width. Using a unit disc formed by cutting by a side, wherein a side receiving portion is formed at one side end in the longitudinal direction and coupled to the other side inserting portion formed on the adjacent floorboard material pre-installed at the other end; An end receiving portion is formed at the other end and an end inserting portion at one end in the longitudinal direction; In the bottom surface floorboard material is a synthetic rubber-based hot-melt adhesive is applied to the back, and is formed by attaching a release paper on the adhesive, The end insertion portion protrudes in the longitudinal direction from one end surface to the top end to have a predetermined cross-sectional margin (γ), and has an end downward projection formed to protrude downward on the bottom end of the end, the end downward projection It is made to have an end upper groove which is formed indented upward in the inner side of the; The pair of end accommodating parts formed on the opposite side of the end inserting portion may protrude in the longitudinal direction from the lower end of the other end, and has an end upper protrusion protruding upward from the upper end of the end end portion, It is made with an end lower groove which is formed indented downward inward; As the side insert is inserted into the side receiving portion formed in the adjacent floorboard material which is pre-installed during construction, the end downward projection of the end insert portion is in the end downward groove of the end receiving portion of the other adjacent floorboard material that has been pre-installed, The floor finishing floor board comprising an ondol for characterized in that the end of the end receiving projections are overlapped and interlocked. delete delete delete The method of claim 1, The hot melt adhesive is a triblock having a diblock content of 1% or less, and has a melt index of 8 to 14 and a Brookfield viscosity (toluene solution, 25 ° C.) of 500 to 1,600. Phosphorus styrene-isoprene-styrene (10-25 wt%) Styrene-butadiene-styrene (triblock) with diblock content of 1% or less, melt index of 1 to 23, Brookfield viscosity (toluene solution, 25 ° C) of 450 to 9,000 butadiene-styrene) 15-25 wt%, Flooring flooring for flooring, including for the ondol, characterized in that it comprises 50 to 60% by weight of a tackifier.