TWI254736B - Method for producing adhesive block having anti-tack property and adhesive block there from its production method - Google Patents

Abstract

To provide a hot-melt adhesive block which solves the problem of a packaging method for preventing the mutual adhesion of a conventional hot-melt adhesive, reduces the rate of a different material contaminant such as a film into the not-melt adhesive as little as possible, prevents the mutual adhesion of hot-melt adhesive blocks, and is excellent in workability, to provide a method for producing the same, and to provide methods for packaging a hot-melt adhesive block and for transporting the same, whereby wastes such as a packaging material can be reduced as little as possible. The method for producing a hot-melt adhesive block comprises pouring the hot-melt adhesive heated to its flow temperature or higher into a container having an inner surface with release properties and a bottom constructed so as to be openable or closable or to be attachable or detachable, cooling the poured adhesive until at least the surface of the adhesive is solidified, and taking out the produced hot-melt block from the container by opening or detaching the bottom of the container. The hot-melt adhesive block produced thereby and methods for packaging and for transporting the same are also provided.

Description

1254736 CL· n 1 _Cell No. 91121308//Month/Day Revision_5. Description of the Invention (1) Technical Field of the Invention The present invention relates to a method of manufacturing a solid hot-melt adhesive having mutual adhesion prevention properties. The packaging and transportation method of the solid hot-melt adhesive and the solid hot-melt adhesive prepared by the same. [Prior Art] A hot-melt adhesive (h〇t - m e 11 a d h e s i v e ) which is generally heated and then applied in a flowing state is a solid at room temperature. The heat-sensitive adhesives are generally supplied in the form of a lump and are heated and melted during use, but these materials have various problems in handling or packaging heat-bonding swords. The solid hot melt adhesive block will not only bond or adhere to the hand or mechanical processing equipment, but will also cement or adhere the hands or devices, or adsorb dirt and contaminants. In addition, in order to avoid sticking to each other and to improve workability, a hot-melt adhesive having a surface-adhesive property is placed in a container such as a paper container or a plastic container which is subjected to a release treatment such as enamel. SUMMARY OF THE INVENTION However, such a packaging method requires removal of the packaging material and disposal thereof when using the packaged hot-melt adhesive, which is not only troublesome, but also has environmental concerns due to waste. Therefore, from the viewpoint of resource saving and environmental protection, a non-use of these containers is used, but a thin polyolefin film is used to enclose the hot-melt adhesive, and is directly melted without peeling off the polyolefin film. method. However, these methods also have a higher softening point of the polyolefin film, so that it is quite costly to uniformly disperse the polyolefin film in the molten hot-melt adhesive composition.

;] 4029 Revised Edition.] View 1254736 q) //7 _ Case No. 91121308 (Year of the month / 曰_Ifi_ five, invention description (2) time, and due to the characteristics of polyolefin, also produced a hot melt adhesive The performance is lowered, and the thermal stability in the heat sink (h ο ΐ in e 1 t ΐ ank ) is lowered. In addition, it is also proposed to spray a wax or the like on the inside of the metal container before the hot melt adhesive is loaded into the container. When the surface adhesion is eliminated, the adhesion of the bottom surface and the side surface becomes uneven, and the adhesion rate of the heat-resistant adhesive is high. It is treated under the environment, so it is easy to be affected by the temperature caused by wax melting into the inside of the hot-melt adhesive, and as a result, the problem of increasing the content of the viscosity-reducing substance is caused. In order to solve these problems, it is necessary to reduce the wax and the like as much as possible. The sticky substance is coated on the large heat-resistant adhesive block, and a film or the like is used in the portions in contact with each other to completely separate the respective blocks, thereby minimizing the proportion of the viscosity-reducing substance. Is for example in A method of forming a wax by spraying a wax on a tray of various shapes such as a cylinder or a rectangular parallelepiped, and then filling the hot-melt adhesive, but if the coating amount of the wall is too small, the peeling of the tray and the hot-melt adhesive may be difficult. A large amount of wax, although it can be easily peeled off from the tray, has a disadvantage of being affected by the performance of the adhesive due to the incorporation of a large amount of wax when using the hot-melt adhesive. Another method has been proposed, from the extrusion molding machine. A method of continuously extruding a hot-melt adhesive and cutting it into a suitable length to form a small block, and then applying a wax. However, the hot-melt adhesive block suitable for use in this method is relatively small, if a larger one is to be manufactured The hot-melt adhesive block body and the extrusion molding machine become bulky, so that the equipment cost is increased, and thus it is not suitable as an industrial production method.

3] 4029 Correction work c Page 9 1254736 q> li η _ Case No. 91121308 // Year H month / 曰__ V. Description of the invention (3) The object of the present invention is to solve the above-mentioned conventional problem in order to prevent hot melt adhesive The problem of the packaging method which adheres to each other, and provides a solid hot-melt adhesive which minimizes the proportion of different materials such as a film mixed with a hot-melt adhesive, and prevents the hot-melt adhesive block from sticking to each other, and has good workability. A binder and a method of manufacturing the same, and a method of packaging and transporting a solid hot melt adhesive which can reduce waste materials such as packaging materials. [Means for Solving the Problem] The present invention relates to a method for producing a solid hot-melt adhesive, which is characterized in that the inner surface has a mold release property, and the bottom plate can be opened or closed or can be attached/detached (hereinafter referred to as a block) a body-forming container), inserting a hot-melt adhesive that has been heated above the flow temperature, and cooling until at least the surface of the hot-melt adhesive is cured, and then opening or unloading the bottom plate of the container, thereby from the container Remove the solid hot melt adhesive. Furthermore, the present invention relates to a method for producing a solid hot-melt adhesive having mutual adhesion prevention property, characterized in that a powder having mutual adhesion prevention property is applied to a solid hot-melt adhesive manufactured by the above-described production method. Further, the solid hot-melt adhesive having mutual adhesion prevention property is produced by the above-described production method, and most of the surface thereof is covered with powder having mutual adhesion prevention properties. Furthermore, the present invention relates to a method for packaging and transporting a solid hot-melt adhesive, which is characterized in that the solid hot-melt adhesive is loaded in a place that can be recovered several times between a manufacturing place and a use place, and has durability of handling. Sexual containers are then handled. Among the inventors of the present invention, the Japanese Patent Special Purpose 2 0 0 1 - 2 0 5 0 5 2

3]4029ί 爹]Η反.pic第]0页 1254736 Case No. 91121308

Amendment to the second year of the year, the invention description (4), for the same solid hot-melt adhesive, after the surface of the hot-melt adhesive inserted into the container is cooled, the container is made with hot water. Contact to thereby remove the hot melt adhesive from the container. On the other hand, the present invention does not take such a way of bringing it into contact with hot water when the hot-melt adhesive is taken out, but by opening or unloading the bottom plate of the container. [Embodiment] The mold-forming container having mold release property used in the present invention refers to a container in which the inner surface and the hot-melt adhesive are not firmly adhered, specifically, for example, a fluorine-containing resin, a resin, or a polymer. The film or sheet made of acryl is obtained by adhering to the inner surface or the like, but is not limited thereto. Any means can be used as long as the inner surface can have mold release property. Among them, a sheet made of ruthenium rubber is preferable. Further, it is not necessary for the inner surface to have mold release property as long as it has at least a mold release property capable of taking out heat, j: a pressure-adhesive agent (hereinafter referred to as HM A ). Further, when a sheet which has been embossed (concavely shaped) on the sheet is used, the HMA is more easily peeled off from the inner surface of the container and is more easily taken out, which is more preferable. The shape of the lump shaped container used in the present invention can be selected in the shape of a box type, a cylindrical type, or a polygonal column type in which an opening is formed in an upper portion in accordance with the shape of a desired solid HMA. Further, the bottom surface of the container is freely opened or closed or freely attached/detached by a hinge or the like. When the shape of the container is a box type, it is preferable that the side portion can be opened and closed freely. The material of the container is preferably a metallic material having a high thermal conductivity in order to make the cooling of the molten HMA easier and more efficient, but is not limited thereto. Metal materials can be exemplified by iron, ® ϋ KIM, —Lii Λ ϋ

"丨; Page 3] 4029 Revised Edition. pic 1254736 Case No. 9Π21308

Amendment 5, invention description (5) stainless steel, copper, aluminum, aluminum alloy, titanium alloy, etc., but with high thermal conductivity, light weight, and cheaper Ming or Ming alloy is better. By using such a mold-like block-shaped container, it is possible to obtain an adhesive block body composed only of a pure component, and the container can be used repeatedly, so that no waste is generated at all. Examples of the HMA used in the present invention include a synthetic resin, a synthetic rubber, a plasticizer, a petroleum-based material, a natural resin, a filler, and the like. Η Μ A is a temperature which is heated above the softening point, and is filled into the above container by a squeeze pump or the like. Next, the charged molten HMA is cooled until at least the surface of the HMA is cured. Preferably, the container is cooled by contact with a refrigerant or cold air, but is usually cooled naturally at room temperature. The cured HMA is easily dropped from the container by opening the bottom of the container to utilize its own weight or by applying a number of lower pressures on top of the cured HMA. In this case, when a container which can be opened and closed on the side of the container is used, since the side surface portion can be simultaneously opened and the solid HMA is easily dropped, it is preferable. Thus, a solid HMA in which a predetermined shape has been formed can be obtained. Next, a powder having mutual adhesion prevention property is applied to the surface of the solid HMA, and a layer having mutual adhesion prevention property is formed on the outermost surface of the solid HMA. Examples of the powder having mutual adhesion prevention property are inorganic powders of wax powder, clay, talc, mica, magnesium carbonate, calcium carbonate, etc., ethylene-ethylene acetate copolymer (EVA, Ethylene-Vinyl Acetate C〇ρ ο 1 ymers ) and other organic powders, etc., but must not cause

3] 4029 revised version of the team] 2 page 1254736 Case number 9Π21308 fj> Year " month correction 5, invention description (6) HMA itself has reduced performance of the coating amount, and can give sufficient mutual adhesion prevention performance, therefore preferably powder . As for the wax powder, there are no particular restrictions such as petroleum pests such as stone or microcrystalline worms, or synthetic butterflies such as Fischer-Trop (S C) h wax. Moreover, in order to minimize the influence on the performance of the adhesive, the particle diameter of the powder is 10 μm or less, preferably 3 to: ί 0 μm, and the melting point is preferably above 80 ° C 1 \ > 0 ° (The following > powder coating method can spray the powder on the entire surface of the above solid enamel to coat the powder. The more the coating amount is applied, the more effectively the solid HMA is adhered to each other, but the less economical it also affects the performance of the ruthenium itself. In order to minimize the content of the viscosity reducing agent in the : Μ A, and to make the surface of the solid HMA form a uniform state, after coating the butterfly, wipe it with a cloth or a sponge roller to remove excess portions and form The minimum amount of adhesion required 〇 and 5 can also be used to wash the surface with warm water or hot water, thereby removing excess parts of the pest. In addition to the above method, there is a device using a nozzle or the like. A method of spraying a powder having adhesion prevention on the surface of HMA. The method of dispersing the powder in water or the like and spraying it, etc., but in either case, 5 can be uniformly applied to the surface of the solid Η Μ A. Solid surface Μ Μ A surface temperature is lowered, when the wax powder cannot be fully coated. 5 The surface of the solid Η Μ A can be heated by a heater before the waxing operation. These additional 敎Ο 'N can make up the surface of the solid HMA due to low temperature. The adhesiveness is less than 5 and can be fully coated. By using this method 5, the powder coating amount on the solid HMA can be easily controlled, and the performance reduction of the solid Η A itself can be suppressed to a minimum.

Lilr m fiber rat 31402.9 revision pic page]3 page 1254736 case number 91121308

U month

II 曰 Amendment 5, invention description (7) degree. As described above, when the method of the present invention is utilized, the amount of the powder having the adhesion preventing effect can be minimized, and the solid-state HMA can be prevented from sticking to each other without damaging the substantial energy of the HMA. In the case of using the wax powder, the coating amount thereof is preferably from about 0.01 to about 0.1% by weight, more preferably from 0.03 to 0.05 parts by weight, based on the total weight of the solid HMA. In general, the coating amount in this range imparts sufficient mutual adhesion preventing performance and hardly deteriorates the performance of the HMA itself. Thus, a solid HMA having a surface which is mostly covered with wax powder and having mutual adhesion prevention property can be obtained. The solid HMA having the mutual adhesion prevention property manufactured in the above manner may be packaged and transported in a general container such as a corrugated cardboard box, etc., but in order to prevent the container from being waste as much as possible, it is preferable to incorporate the solid state which can be incorporated in the present invention. A container having a portability resistance (hereinafter referred to as a delivery box) is frequently used between the manufacturing site of the HMA and the place of use, and is packaged and transported. The shape of the delivery box is generally box type, and the material is not particularly limited. It can be made of plastic or metal, but it is preferably made of a plastic material that has strong strength and durability, and the weight of the container itself is light. . Such a delivery box is, for example, a plastic container, and a folding container can reduce the shipping cost, which is more desirable. Folding containers are available in a variety of styles on the market, and can be appropriately selected depending on the size of the solid HM A to be loaded, the number of skirts, and the like. In this way, the solid HMA can be filled in the delivery box, packaged, stored, and transported. After the solid HMA itself is used by the demander, the delivery box can be reused, so it is not packaged or transported.

Page 3] 4029 Revised Edition. pic 1254736 φ ι| η _ Case No. 91121308 I Year / Month _ V. Invention Description (8) 31 ltfcr 31

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Waste material produced by container or packaging material [Best example] The present invention will be described in detail below based on examples, but is not limited by these examples. The first embodiment is attached to the sheet of the first embodiment. The side surface and the bottom side inner side 5 of the block-shaped container having an internal size of 150 mm x 2 0 0 ϊ nm and a south degree of 1000 mm are filled with 2. 15 kg of 5 kg. . And a fluid hot-melt adhesive 〇 at this time, the bottom plate can be opened and closed by a chain, and after the hot-melt adhesive is completely cured by cooling, the diameter is used from the ruthenium-melting adhesive in a state where the bottom plate is opened. When the cylinder rod of 4 0 hi m is directly applied with a load of 40 kgf directly below, the 孰Φ fusion adhesive is easily detached from the container. The second embodiment will have a particle diameter of 5 to rm meters. Synthetic stone pests sprinkle the hot-melt adhesive prepared in the first embodiment and wipe off the excessive portion 5 with a cloth while homogenizing the surface adhesion to obtain a solid heat-melt adhesive having surface adhesion prevention properties. The amount of the synthetic paraffin attached to the solid matter by the weight measurement is 0. 0 5 parts by weight of the solid matter of the whole embodiment. According to j IS 1 (6 8 6 2 &;go with, The softening point is according to J] :s K 6 8 6 3 ~ 180 degrees peeling is according to the nature of the hot-melt adhesive obtained in the first and second examples according to 'IIS; B 0 2 3 7, respectively The state is tested and the results are shown in Table 1. Α-Αγ brother 3) 4029 revision. pic 1254736 η η _ case number 91121308 I year 1 month / 曰 _ 5, invention description (9) [Table 1] 1 EXAMPLES Second Example Viscosity (mPa·s/at 1 60 °C) 4150 4100 Softening Point (°C) 100 100 1 8 0 Degree Peel Strength (N/10mm) 17. 0 17.5 Results show that synthetic paraffin The applied hot-melt adhesive has a viscosity, a softening point, and a 180-degree peel strength which are substantially the same even when compared with the uncoated hot-melt adhesive. It is shown that 0. 0 parts by weight of the butterfly does not have any influence on the nature and state of the hot melt adhesive. In the fourth embodiment, the solid hot-melt adhesive prepared in the second embodiment was placed in a plastic folding container having a width of 401 mm x 299 mm and a height of 212 mm (manufactured by San Francisco, No. 2 5 B), and Use trucks to carry a distance of approximately 200 km. The outside air temperature during transport is approximately 30 °C. When the state of the solid hot-melt adhesive after the conveyance was tested, it was found that the blocks did not adhere to each other and were easily taken out from the container. Moreover, it does not stick to the operator's hand or clothes during the processing. [Effect of the Invention] According to the present invention, by using a container having a mold release property on the inner surface and an openable and closable bottom plate, the hot melt adhesive can be easily separated from the container without excessive external force. Moreover, the product using the method of the invention can reduce the film, etc.

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314029 Revised PC Page 6 of 12 1254736 Case No. 91121308 Year of the War / / Month 修正 Correction V. The content of the viscosity-reducing material in the invention description (10), so there will be no excessive quality in the design process of the product. In addition, since it can be directly put into the melting tank, it can be handled easily, and by using plastic packaging, handling containers, etc., it is possible to provide an excellent packaging form that does not generate waste at all.

3]4029 Revised Edition.跸第7页1254736 Case No. 91121308 > Simple Explanation of Year and Month Correction Diagram [Simple Description of Drawing] Fig. 1 is an oblique view of an example of a block-shaped forming container β|1·ι * 11 m Page 18 31.4029 Revised Edition.pr

Claims (1)

1254736 ^ , _ Case No. 91121308 V Noon/>Month> Day Correction _ VI. Patent Application No. 1. A method for manufacturing a solid hot-melt adhesive, which has a mold release property on the inner surface and a bottom plate can be opened and closed Or a container that can be installed/disassembled, fed into a hot melt adhesive that has been heated above the flow temperature, and cooled until at least the surface of the hot melt adhesive is cured, and then the bottom plate of the container is opened or removed, thereby The solid hot-melt adhesive is taken out from the container, and a powder having mutual adhesion prevention property is applied to the surface of the solid hot-melt adhesive. 2. The method for producing a solid hot-melt adhesive according to claim 1, wherein the powder is selected from the group consisting of wax powder, clay, talc, mica, magnesium carbonate, calcium carbonate and the like, or ethylene. - An organic powder such as an ethylene acetate copolymer. 3. The method for manufacturing a solid hot-melt adhesive according to the second aspect of the patent application, wherein the wax powder is selected from petroleum waxes such as paraffin wax or microcrystalline wax, or synthetic butterfly such as polyethylene ether and finto butterfly. By. A solid-state hot-melt adhesive having mutual adhesion prevention, which is produced by the method for manufacturing a solid hot-melt adhesive according to any one of claims 1 to 3, and a majority of the surface thereof is It is covered by a powder having mutual adhesion prevention properties. 5. The solid hot-melt adhesive according to claim 4, wherein the solid hot-melt adhesive is filled in a container having handling durability and then packaged. 6. The solid hot-melt adhesive according to claim 4, wherein the solid hot-melt adhesive is loaded into a container having handling durability and then carried. 314029 (Revised Edition).ptc Page 19 1254736 ~ ---^^_9Π21308 7 ' Year s month "Day _ -.___ S ί Si Si: The manufacturing method of solid scale splicing agent with mutual adhesion prevention and The object of the present invention is to solve the problem of the conventional packaging method for preventing the hot-melt adhesive from sticking to each other, and to provide a ratio of minimizing the mixing of different materials such as a film into a hot-melt adhesive, and preventing hot-melt adhesion. A solid hot-melt adhesive which adheres to each other and has excellent workability, a method for producing the same, and a method for packaging and transporting a solid hot-melt adhesive which can reduce waste materials such as packaging materials. The method for manufacturing the solid hot-melt adhesive of the present invention, the solid-cold heat-seal adhesive, the packaging and the transport method thereof are containers having mold release property on the inner surface, and the bottom plate thereof can be opened or closed or can be attached/detached. Inserting a hot melt adhesive that has been heated above the flow temperature and cooling until at least the surface of the hot melt adhesive is cured, then opening or unloading the bottom plate of the container, thereby removing solid heat fusion from the container Ingredients. The representative figure of this case: Figure 1 (the representative figure has no component symbols and the meaning it represents) ~ Six, English invention summary ~~ Ming name: METHOD FOR PRODUCING ADHESIVE BLOCK HAVING ANTI-TACK PROPERTY AND ADHESIVE BLOCK THERE FROM ITS PRODUCTION METHOD To provide a hot-melt adhesive block which solves the problem of a packaging method for preventing the mutual adhesion of a conventional hot-melt adhesive, reduces the rate of a different material contaminant such as a film into the not-melt adhesive as little As possible, prevents the mutual adhesion of hot-melt adhesive blocks, and is excel lent in workability, to provide a 314029 (Revised Edition).ptc Page 3