KR100479324B1 - Ethylene acylic acid-amorphous polyalphaolefin-isobutylene rubber-based hot melt adhesive composition for use in deflection yoke - Google Patents

Abstract

The present invention relates to a hot-melt composition for deflection yoke that does not generate cracks and does not generate dioxins during combustion, by improving adhesion, heat resistance, cold resistance, thermal stability, and thermal shock resistance to metals and plastics. The composition is based on the total weight of 5 to 15% by weight of sasol wax, 5 to 15% by weight of ethylene acrylic acid (EAA), 20 to 40% by weight of amorphous polyalphaolefin (APAO), 5 to 15 Wt% isobutylene rubber, 20 to 35 wt% flame retardant and 25 to 40 wt% tackifying resin. As the flame retardant, aluminum hydroxide, magnesium hydroxide or titanium dioxide is used, and as the tackifying resin, a terpene phenol-based resin is used.

Description

Hot-melt adhesive composition for deflection yoke mainly composed of ethylene acrylic acid-amorphous polyalphaolefin-isobutylene-based rubber

The present invention relates to a hot-melt adhesive composition for deflection yoke having a main component of ethylene acrylic acid-amorphous polyalphaolefin-isobutylene-based rubber having improved heat resistance, cold resistance, heat shock resistance and adhesion.

The deflection yoke is a device for adjusting the deflection angle of the electron beam irradiated from the electron gun provided outside the rear glass of the cathode ray tube. This deflection yoke is the most important element of the magnetic device and consists of a horizontal deflection coil, a vertical deflection coil and a ferrite core.

Hot melt adhesives are used as adhesives for bonding and fixing a vertical deflection coil, a vertical deflection coil, and a ferrite core of a deflection yoke. The hot melt adhesive is a solvent-free adhesive having a solid content of 100% at room temperature, and is heated and melted upon use to be applied to various substrates to express adhesive strength by solidification by cooling, and is widely used in home appliances as well as packaging, bookbinding, or wood processing. Has been used. In addition, since the hot melt is heated and melted at a high temperature and cooled immediately after application, continuous operation is possible, and since volatile matter does not occur, the adjustment of the application thickness is simple and the application thickness is uniform, and there is no risk of fire. Such hot melt adhesives are generally composed of three components, a base polymer, an adhesion imparting resin, and a wax. If necessary, additives such as antioxidants, plasticizers, flame retardants, and the like are additionally used.

Synthetic rubbers and olefins such as styrene ethylene butadiene copolymer (SEBS) and styrene butadiene copolymer (SBS) have been used as the base polymer. Rosin-based resins, petroleum resins, and the like have been used as tackifying resins, and halogen-based flame retardants such as bromine compounds have been used as flame retardants.

However, such a conventional hot melt adhesive has a disadvantage in that cracking may occur due to insufficient adhesiveness, heat resistance, cold resistance, thermal stability, and thermal shock resistance to metals and plastics. In addition, such a conventional hot melt adhesive has a disadvantage of generating dioxin upon combustion since it uses a halogen compound as a flame retardant.

Accordingly, the present inventors have conducted research for the development of hot melts that do not cause cracking and do not generate dioxin, and use sasol wax as a wax component, and ethylene acrylic acid (EAA) and isobutylene as a base polymer. When using a combination of rubber and amorphous polyalphaolefin (APAO) and using a terpene phenol resin as a tackifying resin, the resulting hot melt adhesive improves adhesion to metals and plastics, heat resistance, cold resistance, thermal stability, thermal shock resistance. As a result, the present invention was completed by confirming that cracking did not occur and confirming that dioxin was not generated during combustion when the inorganic filler was used as a flame retardant.

Accordingly, an object of the present invention is to solve the disadvantages of the conventional hot melt, and improves adhesion to metals and plastics, heat resistance, cold resistance, thermal stability, thermal shock resistance, and at the same time does not cause cracking, The present invention provides a hot melt adhesive composition for deflection yoke that does not generate dioxin.

In order to achieve the above object, the present invention, based on the total weight of the composition, 5 to 15% by weight of sasol wax, 5 to 15% by weight of ethylene acrylic acid, 20 to 40% by weight of amorphous polyalpha A hot melt adhesive composition for deflection yoke is provided comprising an olefin, 5 to 15 weight percent isobutylene rubber, 20 to 35 weight percent flame retardant, and 25 to 40 weight percent tackifying resin.

Hereinafter, the present invention will be described in more detail.

The hot melt adhesive composition for deflection yoke according to the present invention contains sasol wax as a wax component. The solazole wax serves to lower the viscosity of the composition to improve workability and heat resistance. In addition, the solazole wax is preferably contained in an amount of 5 to 15% by weight based on the total weight of the composition, which is less than 5% by weight of the effect of reducing the viscosity and increasing heat resistance of the composition, and 15% by weight If exceeded, the viscosity of the composition is too low and the heat resistance is improved, but the cold resistance is lowered.

The hot melt adhesive composition for deflection yoke of the present invention also contains a combination of ethylene acrylic acid, isobutylene rubber and amorphous polyalphaolefin as the base polymer. The ethylene acrylic acid is a copolymer of an ethylene monomer and an acrylic acid monomer, and serves to provide adhesion to the composition. Such copolymers preferably have an acrylic acid content of 5-15% and a melt index (MI) of 5-30. Such ethylene acrylic acid copolymers exhibit strong binding strength to metals, glass, cellulose, polyamides, and the like, which are polar deposits, because of the carboxyl groups present in their molecules. In particular, the copolymer has good adhesion to metals such as aluminum, copper, chromium, stainless steel, tinned steel, and synthetic resins such as polyethylene, polyurethane, and nylon (6,66). The ethylene acrylic acid copolymer is preferably contained in an amount of 5 to 15% by weight based on the weight of the hot melt adhesive composition, which is less effective when less than 5% by weight, the viscosity of the composition is greater than 15% by weight This is because there is a problem of workability due to excessive increase.

In addition, the amorphous polyalphaolefin used as one component of the base polymer functions to improve adhesion, heat resistance and cold resistance. Such amorphous polyalphaolefins are well known to those skilled in the art, and it is preferable to use those having an ethylene content of 5-15% and a butene content of 15-25% in the practice of the present invention. In addition, the amorphous polyalphaolefin is preferably used in an amount of 20 to 40% by weight based on the weight of the composition, which is less effective when less than 20%, and exceeds 40% by increasing the viscosity of the composition Because there is a problem.

In addition, the isobutylene-based rubber used as a component of the base polymer is to improve the adhesion and cold resistance, and has a low glass transition temperature characteristic of -60 ℃ exhibits flexibility and impact resistance at low temperatures, olefin It shows special adhesiveness to the resin surface. In the practice of the present invention, the isobutylene rubber is preferably an isobutylene homopolymer having a molecular weight of 40,000 to 1000,000, or a copolymer of isobutylene and other monomer (s) having a molecular weight of 300,000 to 500,000. Do. In addition, the isobutylene-based rubber is preferably used in an amount of 5 to 15% by weight based on the weight of the composition, which is less effective when less than 5%, the viscosity of the composition is too high when it exceeds 15% This is because the hardness is lowered.

And the hot melt adhesive composition of this invention contains a flame retardant. In order to prevent the generation of dioxin upon combustion of the composition, non-halogen compounds such as aluminum hydroxide, magnesium hydroxide or titanium dioxide are used as the flame retardant. These flame retardants have the function of flame retardancy and thermal shock absorption. In addition, the flame retardant is preferably used in an amount of 20 to 35% by weight based on the weight of the composition, which is less than 20%, the flame retardancy of the composition is lowered, if it exceeds 35% the viscosity of the composition is too high and adhesive Because there is a problem.

The hot melt adhesive composition of the present invention contains a terpene phenol-based resin as a tackifier. The terpene phenol tackifier resin serves to increase the adhesive strength of the composition in combination with the base polymer, and has superior adhesiveness and heat adhesive resistance as compared with tackifiers of conventional rosin-based or petroleum-based resins. Especially excellent. In addition, the terpene phenol-based tackifying resin is preferably used in an amount of 25 to 40% by weight based on the weight of the composition, which is ineffective when less than 25% by weight, the hardness of the composition when more than 40% by weight Is high and the adhesion is reduced.

In addition, the hot melt adhesive composition of the present invention may contain 0.5 to 1% by weight of the phenolic primary antioxidant and phosphorus secondary antioxidant based on the weight of the composition. Such antioxidants serve to improve the thermal stability of the composition. In addition, the composition may further comprise 1 to 3% by weight of colorant.

Such hot melt adhesives can generally be prepared by a process of hot melting and blending a blended raw material and molding and cutting the blend from the blending process into a suitable form. Molding forms of such hot melt adhesives may include pellets, chips, blocks, and films. For application to the deflection yoke, it is preferable that the hot melt adhesive be manufactured in a chip form.

Hereinafter, the present invention will be described in more detail based on the following examples. However, the following examples are illustrative of the present invention and the scope of the present invention is not limited thereto.

Example 1

In a vertical mixer, under a nitrogen atmosphere, 10 wt% of a sol wax (softening point of SHUMANN SASOL COMPANY, product name: H1) with a softening point of 120 ° C., and 25 wt% of terpene phenol resin (manufactured by Yasuhara chemical company, a softening point of 130 ° C., product name: YS POLYESTER-2130) and 1% by weight of antioxidant were added and melted completely while maintaining at 140 ° C. Next, while increasing the temperature to 160 ℃, 10 wt% EAA resin (manufactured by EXXON MOBILE COMPANY, product name: ESCOR5050), which is MI 8, and 10 wt% isobutylene-based rubber (manufactured by EXXON MOBILE COMPANY, product name: LMMS) is placed in the vertical mixer and completely melted. Next, 20 wt% of APAO (manufactured by Degussa-Huls Company, product name: Vestoplast 608) having a molecular weight of 80,000 and a softening point of 157 ° C was melted, and 22 wt% of a flame retardant (manufactured by NATOTECH CHEMICALS, product name: TAGIMA-M) After adding 2% by weight of colorant, the mixture is sufficiently stirred for 1 hour and then vacuum degassed to remove bubbles. Next, the compound is passed through a molding apparatus (manufactured by Sandvik Co., Ltd., product name: STEEL BELT TYPE) to produce a hot melt in the form of a square chip.

Example 2

In a vertical mixer, under a nitrogen atmosphere, 10% by weight of a sol-sol wax having a softening point of 120 ° C. (manufactured by Schumann SASOL COMPANY, product name: H1), and 20% by weight of a terpene phenol resin (manufactured by Yasuhara chemical company, product of a softening point of 140 ° C.): T-140), and 1% by weight of antioxidant and completely melted while maintaining at 150 ° C. Next, while increasing the temperature to 160 ℃, 5% by weight of EAA resin (manufactured by EXXON MOBILE COMPANY, product name: ESCOR5050), which is MI 15, and 5% by weight isobutylene-based rubber (manufactured by EXXON MOBILE COMPANY, product name: Butyl-268) and melt completely. Next, 30 wt% of APAO (manufactured by Degussa-Huls Company, product name: Vestoplast 704) having a molecular weight of 80,000 and a softening point of 105 ° C was completely melted, and then 27 wt% of a flame retardant (manufactured by NATOTECH CHEMICALS, product name: TAGIMA-A ) And 2% by weight of a colorant, and thoroughly stirred for about 1 hour, followed by vacuum defoaming to remove bubbles. Next, the compound is passed through a molding apparatus (manufactured by Sandvik Co., Ltd., product name: STEEL BELT TYPE) to prepare a hot melt adhesive in the form of a square chip.

Example 3

In a vertical mixer, under a nitrogen atmosphere, 15% by weight of a 15% by weight of azole wax (softening point of SHUMANN SASOL COMPANY, product name: H1), a 25% by weight of terpene phenol resin (product of Yasuhara chemical company, product name: T-130), add 1% by weight of antioxidant, keep at 150 ℃ and let it melt completely. Next, while elevating the temperature to 170 ° C., 11 wt% of EAA resin (manufactured by EXXON MOBILE COMPANY, product name: ESCOR5050) and MI wt. 8 wt.% Isobutylene copolymer rubber (manufactured by EXXON MOBILE COMPANY, product name: Butyl- 268) and melt completely. Next, 10% by weight of APAO (manufactured by Degussa-Huls Company, product name: Vestoplast 704) having a molecular weight of 80,000 and a softening point of 105 ° C, and 5% by weight of APAO (Degussa-Huls Company, having a molecular weight of 50,000 and a softening point of 161 ° C) , Product name: Vestoplast 828) and melt completely. Next, 25% by weight of a flame retardant and 2% by weight of a colorant were added, stirred for 1 hour, and then vacuum degassed to remove bubbles. Next, the compound is passed through a molding apparatus (manufactured by Sandvik Co., Ltd., product name: STEEL BELT TYPE) to prepare a hot melt adhesive in the form of a square chip.

Example 4

In a vertical mixer, under a nitrogen atmosphere, 7% by weight of a solvate wax having a softening point of 120 ° C. (manufactured by SHUMANN SASOL COMPANY, product name: H1), and 20% by weight of a terpene phenol resin (manufactured by Yasuhara chemical company, product having a softening point of 140 ° C.): T-140), 1% by weight of antioxidant is kept at 150 ℃ and completely melted. Next, while increasing the temperature to 170 ℃, 5% by weight of EAA resin (manufactured by EXXON MOBILE COMPANY, product name: ESCOR5050) of MI 8 and 10% by weight of isobutylene-based copolymer rubber (manufactured by EXXON MOBILE COMPANY, product name: Butyl- 268) and melt completely. Thereafter, 15 wt% APAO (manufactured by Degussa-Huls Company, product name: Vestoplast 828) having a molecular weight of 80,000 and a softening point of 161 ° C., 10 wt% APAO (manufactured by Degussa-Huls Company, having a molecular weight of 50,000 and a softening point of 162 ° C.) Product name: Vestoplast 888) and melt completely. Next, 30% by weight of a flame retardant (manufactured by DUPONT, product name: R-902) and 2% by weight of a colorant are added thereto, and stirred for 1 hour, followed by vacuum degassing to remove bubbles. Next, the compound is passed through a molding apparatus (manufactured by Sandvik Co., Ltd., product name: STEEL BELT TYPE) to prepare a hot melt adhesive in the form of a square chip.

Example 5

In a vertical mixer, under a nitrogen atmosphere, 15% by weight of a 15% by weight of a sol wax with a softening point of 120 ° C (manufactured by Schumann SASOL COMPANY, product name: H1), a 25% by weight of terpene phenol resin (manufactured by Yasuhara chemical company, a product with a softening point of 130 ° C) YS POLYESTER-2130) and 1% by weight of antioxidant were added and melted completely while maintaining at 150 ° C. Next, while increasing the temperature inside the mixer to 170 ℃, 10% by weight of EAA resin (manufactured by EXXON MOBILE COMPANY, product name: ESCOR5050) of MI 8, 5% by weight of isobutylene copolymer rubber (manufactured by EXXON MOBILE COMPANY, Product name: Butyl-268) and melt completely. Next, 10% by weight of APAO (manufactured by Degussa-Huls Company, product name: Vestoplast 608) having a molecular weight of 80,000 and a softening point of 157 ° C, and 10% by weight of APAO (manufactured by Degussa-Huls Company, having a molecular weight of 50,000 and a softening point of 162 ° C). Product name: Vestoplast 888) and melt completely. Next, after adding 25% by weight of a flame retardant (manufactured by DUPONT, product name: R-902) and 2% by weight of a colorant, after sufficiently stirring for about 1 hour, vacuum degassing was removed. Next, the compound is passed through a molding apparatus (manufactured by Sandvik Co., Ltd., product name: STEEL BELT TYPE) to prepare a hot melt adhesive in the form of a square chip.

Comparative Example 1

In a vertical mixer, in a nitrogen atmosphere, 10 wt% of a polyethylene wax having a softening point of 120 ° C., 22 wt% of rosin ester having a softening point of 100 ° C., and 1 wt% of an antioxidant were completely melted at 150 ° C., and then the temperature was 170. 10% by weight of ethylene vinyl chloride copolymer resin (EVA) of MI 150 and 10% by weight of styrene ethyl butadiene copolymer (SEBS) of rubber of MI 16 were added while melting to 100 ° C. Next, 20 wt% of APAO having a molecular weight of 80,000 and a softening point of 150 ° C. was completely melted, and then 25 wt% of a flame retardant and 2 wt% of a colorant were sufficiently stirred, followed by sufficient stirring to prepare an adhesive.

Comparative Example 2

In a vertical mixer, under a nitrogen atmosphere, 15 wt% of a polyethylene wax having a softening point of 170 ° C., 20 wt% of a hydrogenated hydrocarbon resin having a softening point of 120 ° C., and 1 wt% of an antioxidant were melted completely at 150 ° C., followed by temperature While rising to 170 ° C, 15% by weight of ethylene vinyl chloride copolymer resin (EVA) of MI 15 and 7% by weight of styrene ethyl butadiene copolymer (SEBS) rubber of MI 16 are completely melted. Next, after adding 20% by weight of APAO having a molecular weight of 50,000 and a softening point of 140 ° C. and completely melting, 20% by weight of a flame retardant and 2% by weight of a colorant were added, followed by sufficient stirring, and vacuum degassing to prepare an adhesive.

Comparative Example 3

In a vertical mixer, under a nitrogen atmosphere, 15 wt% of paraffin wax having a softening point of 70 ° C., 20 wt% of hydrogenated hydrocarbon resin having a softening point of 120 ° C., and 1 wt% of antioxidant are completely melted while maintaining 150 ° C. Then, while increasing the temperature to 170 ℃, 10 wt% of MI 10 EAA resin and 10 wt% of isobutylene-based rubber having a molecular weight of 50,000 was completely melted, and 20 wt% of APAO having a molecular weight of 80,000 and a softening point of 150 ℃ was completely added. Melt. Next, 22% of a flame retardant and 2% by weight of a colorant were added thereto, and then sufficiently stirred and vacuum degassed to prepare an adhesive.

Test Example 1-5 was performed to compare the properties of the hot melt prepared in Example 1-5 (heat resistance, cold resistance, thermal shock resistance, adhesion and flame retardancy) with the hot melt prepared in Comparative Examples 1-3.

Test Example 1: Heat Resistance Test

Melt the hot melt completely at applicator temperature 190-220 ° C. Next, the molten hot melt is applied to the metal surface of the bonded portion and the non-bonded portion of the deflection yoke with a nozzle and coated with about 7 g to flow to the deflection coil and the plastic portion to prepare a deflection yoke specimen. Next, the specimen is allowed to stand at room temperature for at least 24 hours, and then the deflection yoke specimen is placed in a thermostat set at 120 ° C. and left for 250 hours or longer, and then the hot melt is observed to be lifted up and flowing down. . The results are shown in Table 1 below.

Test Example 2: Cold Resistance Test

After making the same specimen as the heat resistance test method of Test Example 1, and left at a constant temperature and humidity temperature of -10 ℃, -20 ℃, -30 ℃ and -40 ℃ for more than 250 hours, observed the phenomenon of lifting and cracking hot melt do. The results are shown in Table 1 below.

Test Example 3: Thermal Shock Resistance Test

After making the deflection yoke test specimen in the same manner as the heat resistance test of Test Example 1, and left at room temperature for 24 hours or more, and set to maintain for 1 hour at a constant temperature and humidity temperature -40 ℃, 1 hour at 110 ℃ and then left for more than 50 cycles Afterwards, observe the cracks and the lifting phenomenon of the specimen. The results are shown in Table 1 below.

Test Example 4: Adhesion Test

The hot melt is melted at 190-220 ° C. and then applied to the specified areas of steel and PP specimens. Next, pressing was repeated five times with a roller weighing 1 kg and left at room temperature for 24 hours, and then maintained at a constant temperature and humidity temperature of 25 ° C for 1 hour. Next, the maximum load was measured by pulling at a tensile speed of 10 m / min. Specimens were made with a width of 100 mm and a width of 25 mm and bonded to overlap 12.5 mm. The results are shown in Table 2 below.

Test Example 5: Flame retardancy test

The hot melt was manufactured to have a width of 125 mm, a length of 12.5 mm, and a thickness of 3 mm, and five specimens were allowed to stand for 48 hours in a constant temperature and humidity chamber at a temperature of 23 ± 2 ° C. and a humidity of 50 ± 5%. After that, it was again pretreated by maintaining 168 hours in a dry oven at 70 ± 1 ℃ and 4 hours in a desiccator (see UL 94 8.3.2). The sample is clamped to the upper 6 mm point of the sample in a flame retardant tester, the height between the end of the sample and the bottom surface is adjusted to 300 mm, and the distance between the sample is 10 mm and the burner angle is 45 °. It adjusted so that flame length might be 20 +/- 1mm. The cotton which spread | covered on the bottom surface was 50 mm long, 50 mm long, and 6 mm high. After the flame was applied to each sample for 10 seconds, the burner was extinguished and the time until the remaining salts of the sample was measured (t₁). Flame was applied to the same sample for 10 seconds, the burner was extinguished, and the time from the occurrence of residual flame to the sample was measured (t₂). When the residual salts disappeared and afterglow occurred in the sample, the time until disappearance was measured (t₃). The same procedure was conducted on the four samples in the same way (see UL 94 8.5). The results are shown in Table 2 below. In addition, Table 3 below shows the flame retardancy rating criteria according to UL 94 8.1.

Heat resistance, cold resistance and thermal shock strength of adhesive Heat resistance (lifting and dripping phenomenon of hot melt) Cold resistance (lifting and breaking phenomenon) Thermal Shock Resistance (Crack and Lift) Example 1 Not observed Not observed Not observed Example 2 Not observed Not observed Not observed Example 3 Not observed Not observed Not observed Example 4 Not observed Not observed Not observed Example 5 Not observed Not observed Not observed Comparative Example 1 Not observed Observed Observed Comparative Example 2 Observed Not observed Observed Comparative Example 3 Not observed Observed Observed

From Table 1, it can be seen that the hot melt composition according to Examples 1-5 of the present invention does not generate any cracks, lifts, and drifts, and thus has excellent heat resistance, cold resistance, and thermal shock resistance.

Adhesive and flame retardant of adhesive Adhesive force (PP + PP, kgf) Adhesive force (Fe + Fe, kgf) Flame retardant Example 1 160 150 UL 94-V0 Example 2 150 145 UL 94-V0 Example 3 155 160 UL 94-V0 Example 4 140 150 UL 94-V0 Example 5 145 135 UL 94-V0 Comparative Example 1 135 140 UL 94-V0 Comparative Example 2 140 140 UL 94-V1 Comparative Example 3 130 140 UL 94-V2

Flame retardancy rating criteria (UL 94 8.1) Criteria 94-V0 94-V1 94-V2 Primary or secondary scrubbing time for individual samples (t ₁ , t ₂ ) ≤10 seconds ≤30 seconds ≤30 seconds Sum of 1st or 2nd thought time for 5 samples ≤50 seconds ≤250 seconds ≤250 seconds Sum of afterglow and afterglow time after application of the second flame (t ₂ + t ₃ ) ≤30 seconds ≤60 seconds ≤60 seconds Afterglow or afterglow in the clamp x x x The cotton catches fire when the sample falls while burning x x o

From Table 2, it can be seen that the hot-melt composition according to Examples 1-5 of the present invention is significantly superior to the composition of Comparative Examples 1-3 of the prior art, the adhesive strength to plastic and iron. In addition, the hot melt composition of Example 1-5 was found to satisfy the flame retardancy rating of UL 94-V0 by burning itself immediately after burner heat removal.

As described above, the hot-melt adhesive composition for deflection yoke according to the present invention contains sasol wax as a wax component and a combination of ethylene acrylic acid (EAA), isobutylene rubber and olefin as a base polymer. By containing the terpene phenol resin as a tackifying resin, the adhesion to the metal and plastic, heat resistance, cold resistance, thermal stability, thermal shock resistance is improved and there is an effect that the cracking phenomenon does not occur. In addition, the hot-melt adhesive composition for deflection yoke of the present invention contains an inorganic filler such as aluminum hydroxide, magnesium hydroxide or titanium dioxide as a flame retardant, thereby preventing the generation of dioxins during combustion.

In addition, although the present invention has been described with reference to preferred embodiments, those skilled in the art can be variously modified and implemented within the scope not departing from the gist of the present invention.

Claims (7)

5-15% by weight of sasol wax, 5-15% by weight of ethylene acrylic acid, 20-40% by weight of amorphous polyalphaolefin, 5-15% by weight of isobutylene-based rubber , 20 to 35% by weight of a flame retardant and 25 to 40% by weight of the tackifying resin, hot melt adhesive composition for the deflection yoke. The hot melt adhesive composition of claim 1, wherein the flame retardant is selected from the group consisting of aluminum hydroxide, magnesium hydroxide, and titanium dioxide. The hot-melt adhesive composition for deflection yoke according to claim 1 or 2, wherein the tackifying resin is a terpene phenol-based resin. The hot melt adhesive composition of claim 1, wherein the ethylene acrylic acid has a melt index (MI) of 5 to 30. 2. The hot melt adhesive composition of claim 1, wherein the amorphous polyalphaolefin has an ethylene content of 5 to 15% and a butene content of 15 to 25%. The method of claim 1, wherein the isobutylene rubber is an isobutylene homopolymer having a molecular weight of 40,000 to 100,000, or a copolymer of isobutylene having a molecular weight of 300,000 to 500,000 and other monomer (s). Hot melt adhesive composition. 2. The hot melt adhesive composition of claim 1, further comprising 0.5 to 1% by weight of primary and secondary antioxidants and 1 to 3% by weight of a colorant.