CN105637055B - Hot-melt adhesive - Google Patents

Hot-melt adhesive Download PDF

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Publication number
CN105637055B
CN105637055B CN201580000033.9A CN201580000033A CN105637055B CN 105637055 B CN105637055 B CN 105637055B CN 201580000033 A CN201580000033 A CN 201580000033A CN 105637055 B CN105637055 B CN 105637055B
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China
Prior art keywords
hot
melt adhesive
adhesive
resin
mass
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Expired - Fee Related
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CN201580000033.9A
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CN105637055A (en
Inventor
桑原纪子
清水哲也
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Showa Denko Materials Co Ltd
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Hitachi Chemical Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/08Macromolecular additives
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/04Homopolymers or copolymers of ethene
    • C09J123/08Copolymers of ethene
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J131/00Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Adhesives based on derivatives of such polymers
    • C09J131/02Homopolymers or copolymers of esters of monocarboxylic acids
    • C09J131/04Homopolymers or copolymers of vinyl acetate

Abstract

The present invention discloses a kind of article shaped with adhesive composite and is attached to the hot-melt adhesive of the lining material on article shaped surface.Adhesive composite includes EVAc, resin of tackification and wax.Lining material includes anionic surfactant and Tissuemat E.

Description

Hot-melt adhesive
Technical field
The present invention relates to hot-melt adhesive.
Background technology
Hot-melt adhesive is heated using special coating machine is melted and is coated in adherend, adherend of fitting Afterwards, bonding agent is cooled and solidified, so as to obtain initial bond in the short time.Hot-melt adhesive passes through without organic solvent etc. Heating melting is coated, therefore compared with the bonding agent for being diluted and being coated with using organic solvent etc., it is not necessary to drying is molten Agent and initial bond is excellent.Due to also easily making coating and laminating automation, therefore hot melt adhesion using large-scale applicator Agent is mainly used in the assembly line of packaging, carpenter, glued board, bookbinding, tank processed etc..
Hot-melt adhesive is widely used in the fields such as packaging, bookbinding, glued board, carpenter.Hot-melt adhesive is due to coating Rear hardening time is short, solvent-free etc., therefore usage amount increases year by year.Hot-melt adhesive has graininess, square plate shape, pearl etc. The product form of strip is processed into by severing, wherein the mostly hot-melt adhesive of grain shape.
However, hot-melt adhesive sometimes due to manufacturing process, storage afterwards, transport etc. to cause particle to produce each other strong Adhesion.Further, since its mobility extreme difference, therefore there are the following problems:When in production, package handling, the hot melt of adhesion The comminution process of bonding agent needs very big labour.Therefore, prolonged storage, transport etc. are also difficult.Asked as these are solved The method of topic, has been presented for the various methods for preventing adhesion so far.
Method as adhesion is prevented, for example there are as below methods:The inorganic substances such as talcum, silica, polyolefin is micro- The method that powder, Tissuemat E and its dispersion liquid are coated on particle surface;By higher fatty acids or its salt, N, N '-ethylidene Double oleamides, N, N '-ethylenebis erucyl amide, N, the oil bases of N '-two adipimide, N, the erucyl adipyls of N '-two The method of imines mixing.
Prior art literature
Patent document
Patent document 1:No. 4730698 publications of Japanese Patent No.
Patent document 2:No. 3528841 specifications of U.S. Patent No.
Patent document 3:Japanese Unexamined Patent Application 56-67209 publications
Patent document 4:Japanese Unexamined Patent Application 48-32939 publications
Patent document 5:Japanese Unexamined Patent Publication 2006-117829 publications
The content of the invention
Problems to be solved by the invention
However, above-mentioned various methods there are problems that it is a lot.
For example, method as described in Patent Document 1, is attached to the talcum as inorganic particle, silica etc. is made In the case of heating the surface of block, in order to the mobility for obtaining particle must be added largely, but because inorganic particle is viscous with hot melt The intermiscibility for connecing agent is poor, and the function it is therefore possible to cause end product is significantly damaged.
In the method on the polymer particles of the aqueous slurry coating by polyolefine micropowder end described in patent document 2 In the case of, dispersed extreme difference of the micropowder polyolefin in water system, and tack on hot-melt adhesive composition is weak, because The boundary that this can't actually reach prevents adherence, ensures good fluidity.
Patent Document 3 discloses one kind by the painting polyethylene wax in ethylene copolymer pellets or with Tissuemat E For the hot-melt composition that the method for the dispersion liquid of main component is obtained.In the case where such hot-melt composition is melted, meeting Milkiness shape is presented, therefore is restricted from purposes aspect.
In patent document 4, on the polymer beads being coated to adhesion preventing agent, it is proposed that low using harder, adherence Grade ethylene interpolymer (interpolymer) technology.In this case, adhesion prevents effect also insufficient, and has When cannot get desired cementability.
The applicant it is also proposed viscous using the coated hot melt of specific surfactant as disclosed in Patent Document 5 The surface of agent is connect, so as to the method for preventing hot-melt adhesive from sticking to each other.Adhesion inhibition of the countermeasure under hot and humid Aspect is good to a certain extent, but suppresses on the adhesion under by load-carrying loaded-up condition, in addition it is also necessary to improve.Particularly close The adhesive that the Asia high temperature and humidity environment decentralization as the summer in Japan is postponed, expects further improvement.
Therefore, an aspect of of the present present invention is in view of the problem points of technology and the invention that completes before above-mentioned, it is therefore intended that, close In hot-melt adhesive, the further improvement of resistance to adhesive when realizing being placed under high temperature and humidity environment.
The method of solve problem
Further investigation is repeated in order to solve these problems, as a result:The present invention provides a kind of with bonding agent combination The article shaped of thing and be attached to the article shaped surface lining material hot-melt adhesive.Above-mentioned adhesive composite includes second Alkene-vinyl acetate copolymer, resin of tackification and wax.Above-mentioned lining material includes anionic surfactant and polyethylene Wax.
The effect of invention
Hot-melt adhesive of the invention, even if under high temperature and humidity environment, it is also possible to fully suppress hot-melt adhesive Stick to each other.In addition, it is also possible to obtain the adhesion inhibition under by load-carrying loaded-up condition.Hot melt adhesion of the invention Agent, even if due to also playing excellent resistance to adhesive when long-time is preserved, therefore storage stability is also excellent.Additionally, this hair The hot-melt adhesive excellent in adhesion of the bright adherend that difficult cementability such to carton paper etc. can be provided.
Brief description of the drawings
Fig. 1 is a sectional view for implementation method for representing hot-melt adhesive.
Specific embodiment
Below, the preferred embodiment of the present invention is described in detail.But, the invention is not restricted to following embodiment party Formula.
The hot-melt adhesive of present embodiment have be attached to the article shaped surface of adhesive composite, comprising main hydrophilic group Group is the lining material of the anionic surfactant of anionic.The article shaped of adhesive composite is hot-melt adhesive Main component, comprising vinyl-vinyl acetate copolymer, resin of tackification and wax.Lining material further includes Tissuemat E.
Fig. 1 is a sectional view for implementation method for representing hot-melt adhesive.Hot-melt adhesive 1 shown in Fig. 1 has to be made It is the article shaped 10 and the lining material for being attached to the surface of article shaped 10 of the adhesive composite of the main component of hot-melt adhesive 20.Lining material 20 must not necessarily be coated to the whole surface of article shaped 10, and the part on the surface of article shaped 10 is likely to sometimes Expose.Fig. 1 shows 1 article shaped of hot-melt adhesive, and actually used hot-melt adhesive can also be the collection of multiple article shapeds It is fit.
Article shaped 10 shown in Fig. 1 is spherical coccoid.Wherein, as long as bonding agent of the article shaped with certain shape Composition, can be setting or unsetting coccoid (particle), or the arbitrary shape such as square plate shape, bar-shaped. When article shaped 10 is coccoid, its diameter of axle (being diameter in the case of orbicule) long can be 3~30mm.If article shaped The diameter of axle long be less than 3mm, then be difficult to obtain spherical article shaped, time taking tendency is spent in the manufacture for having hot-melt adhesive.If The diameter of axle long of article shaped 10 is more than 30mm, then be difficult with anionic surfactant and Tissuemat E to be equably coated to The tendency of article shaped.Further, it is possible to be difficult to transport hot-melt adhesive in the hot melt applicator for having used flexible pipe.From adhesion The viewpoints such as suppression consider that article shaped can be spherical.Wherein, " spherical " is not limited to spherical shape, also comprising length-width ratio (diameter of axle long/ Short shaft diameter) be 1~3 scope substantially spherical shape.Can also be formed with the surface of spherical article shaped small concavo-convex.
The JIS K6253 defineds of hot-melt adhesive 1 (or adhesive composite) can be with 23 DEG C of Durometer A hardness It is 50~99.The Durometer A hardness can also be 60~95 or 70~90.If Durometer A hardness is less than 50, hardness is too low, Hot-melt adhesive becomes soft, therefore the effect for having the tendency of adhesion suppression reduces.If Durometer A hardness is more than 99, hardness It is too high, there is cementability relative reduction.
Hot-melt adhesive 1 (or adhesive composite) can be 60~150 DEG C by the softening point that ring and ball method is obtained.Such as Fruit softening point is less than 60 DEG C, then in summer like that close in the environment of 40 DEG C, a part starts melting, produces viscosity, therefore viscous The effect for even suppressing is possible to reduce.If softening point is higher than 150 DEG C, the melting of hot-melt adhesive spends the time, is difficult to The tendency of power saving.
Vinyl acetate (VA) containing ratio for the vinyl-vinyl acetate copolymer used in adhesive composite, with second Can be 10~50 mass % on the basis of the quality of alkene-vinyl acetate copolymer.Vinyl-vinyl acetate copolymer it is molten Body flow rate (MFR) can be 200~3000g/10 minutes.The ring and ball method softening temperature of vinyl-vinyl acetate copolymer It can be 60~120 DEG C.
VA (vinyl acetate) containing ratio of vinyl-vinyl acetate copolymer can be 15~35 mass %, ring and ball method Softening temperature can be 75~95 DEG C.Ethane-acetic acid ethyenyl ester (EVA) copolymer can be used alone, it is also possible to and use 2 More than kind.
Generally, melt flow rate (MFR) (MFR) refers to and, according to JIS K7210, is surveyed under conditions of 190 DEG C, load 21.18N Fixed value.Ring and ball method softening temperature refers to the value determined according to JIS K6863 (or JIS K2207).
As the commercially available product of vinyl-vinyl acetate copolymer, for example, can enumerate (the VA containing ratios 20 of Ultrathene 684 Quality %, melt flow rate (MFR) (MFR)=2000,80 DEG C of ring and ball method softening temperature, the trade name of TOSOH Co., Ltd, " Ultrathene " be registration mark), Ultrathene 722 (the mass % of VA containing ratios 28, melt flow rate (MFR) (MFR)= 400th, 82 DEG C of ring and ball method softening temperature, the trade name of TOSOH Co., Ltd, " Ultrathene " they are registration mark), Ultrathene 735 (the mass % of VA containing ratios 28, melt flow rate (MFR) (MFR)=1000,85 DEG C of ring and ball method softening temperature, east The trade name of Cao's Co. Ltd. system, " Ultrathene " are registration mark).
On the basis of the quality of adhesive composite (article shaped 10), ethane-acetic acid ethyenyl ester is total in adhesive composite The content of polymers can be 30~60 mass %, 30~45 mass % or 33~40 mass %.Ethane-acetic acid ethyenyl ester is total to Less than in the case of 30 mass %, the cementability under low temperature is likely to decrease the content of polymers.If ethane-acetic acid ethyenyl ester is total to The content of polymers is more than 60 mass %, it is likely that viscosity rising, creep resistant relative reduction etc. occur.
As the resin of tackification used in adhesive composite, be not particularly limited, can for example enumerate aliphatic hydrocarbon resin, The Petropols such as alicyclic hydrocarbon resin, aromatic hydrocarbon resin, phenylethylene resin series, polyterpene system resin and rosin series resin, with And their modifier.They using a kind or can combine two or more and use.As the modifier of Petropols, without spy Do not limit, for example, can enumerate the material for implementing the modified methods such as hydrogenation, disproportionation, 2 dimerizations, esterification.Particularly preferably it is hydrogenated with (hydrogen Change) Petropols.
As aliphatic hydrocarbon resin, it is not particularly limited, for example, can enumerates comprising 1- butylene, isobutene, butadiene, penta The list or alkadienes of the C4~C5 such as alkene, isoprene, piperidines, 1,3- pentadienes as main component polymer.
As alicyclic hydrocarbon resin, be not particularly limited, can for example enumerate make non-ring type diene in C4~C 5 fraction into Point cyclisation 2 it is multimerizing and make the 2 aggressiveness monomer be polymerized and generate resin, make cyclopentadiene etc. be cyclized monomer polymerization and generate Resin, the resin for being hydrogenated to aromatic hydrocarbon resin and being generated.
As aromatic hydrocarbon resin, it is not particularly limited, for example, can enumerates comprising vinyltoluene, indenes, Alpha-Methyl benzene second The vinyl aromatic hydrocarbon of the C9~C10 such as alkene, cyclopentadiene as main component resin.
As phenylethylene resin series, it is not particularly limited, for example, can enumerates styrene, vinyltoluene, Alpha-Methyl benzene second The polymer of alkene, isopropenyl toluene.
As polyterpene system resin, it is not particularly limited, for example, can enumerates α-sobrerone polymer, β-sobrerone polymer, two Pentene polymer, terpene-pheiiol polymer, α-sobrerone-cascophen.
As rosin series resin, it is not particularly limited, for example, can enumerates the rosin such as gum rosin, wood rosin, tall oil.
Used as resin of tackification, preferably hydrogenated petroleum resin as described above, more preferably bicyclopentadiene (DCPD)-aromatic series is common The poly- hydrogenated petroleum resin for being, hydrogenation C9 Petropols and hydrogenation C5 Petropols.Bicyclopentadiene (DCPD)-aromatic series is common The hydrogenated petroleum resin of poly- system, typically to cyclopentadiene compound or its derivative and aromatic compound copolymerization are obtained To copolymer hydrogenate the hydrogenated petroleum resin that obtains.
Such as EAST TACK C115W (hydrogenation C5 Petropols, the trade name of Eastman Chemical), ARKON M100, ARKON P115, ARKON SM-10 (hydrogenation C9 Petropols, the trade name of Arakawa Chemical Industries, Ltd., " ARKON " be registration mark), I-MARV P100, I-MARV P125, I-MARV P140, I-MARV S100, I-MARV S110 (hydrogenated petroleum resin of bicyclopentadiene (DCPD)-aromatic copolyester system, the trade name of Idemitsu Kosen Co., Ltd., " I-MARV " be registration mark) etc. commercial resins can be used as resin of tackification.
On the basis of the quality of adhesive composite, the content of resin of tackification can be with adhesive composite (article shaped 10) It is 25~70 mass %, 30~60 mass % or 40~50 mass %.Situation of the content of resin of tackification less than 25 mass % Under, have the tendency of heat resistance or cementability reduction.If the content of resin of tackification has generation viscosity more than 70 mass % Reduction causes the tendency of the cementability reduction under workability reduction, low temperature etc..
As the wax used in adhesive composite (article shaped 10), as long as used in being that typically in hot-melt adhesive Wax is just not particularly limited, can for example enumerate the petroleum waxes such as refined paraffin wax, paraffin and microwax and Tissuemat E, expense- Support wax (FISCHER TROPSCH wax), crystallinity Tissuemat E, crystalline polypropylene wax, random polypropylene wax and ethene- The synthetic waxs such as carbon monoxide multipolymer wax.Particularly preferred Tissuemat E, fischer-tropsch wax in these materials.These wax compositions can be with Only a kind, or two or more.
On the basis of the quality of adhesive composite, in adhesive composite (article shaped 10) content of wax can for 5~ 30 mass % or 10~20 mass %.In the case that the content of wax is less than 5 mass %, there is generation viscosity to rise or solidify The tendency of performance reduction etc..On the other hand, if the content of wax has and cementability relative reduction etc. occurs more than 30 mass % Tendency.
Used as preferred wax, (husky rope company system, fischer-tropsch wax, " SaSOL (husky rope) " are note can for example to enumerate SaSOL H1 Volume trade mark), the commercially available material such as CPW90F (Chiba Fine Chemical Co. Ltd. systems, Tissuemat E).
Adhesive composite (article shaped 10) can include olefin resin.The alkene tree used in adhesive composite Fat, usually the copolymer of the alpha-olefin (alpha-olefin system resin) of ethene (vinylite) and carbon number 3~20 is (also referred to as Olefin copolymer or alpha-olefin copolymer resin).Adhesive composite can include at least a kind olefin copolymer.Make It is the alpha-olefin of carbon number 3~20, for example, can enumerates propylene, isobutene, butylene, 1- amylenes, 1- hexenes, 4- methyl-1-pentenes Alkene and 1- octenes.In above-mentioned olefin copolymer, it is also preferred that the copolymer of the alpha-olefin of ethene and carbon number 4~8.As Olefin resin, more preferably ethene and the copolymer or ethene of butylene and the copolymer of propylene.These alpha olefin copolymers can be with It is used alone, it is also possible to and use two or more.
As preferred olefin resin, for example, can enumerate RT2115 (REXTAC, LLC company system, alpha olefin copolymer tree Fat), RT2304 (trade name of REXTAC, LLC company system, alpha-olefin copolymer resin), AFFINITY GA1900 (Tao Shiization Learn Co. Ltd. system, " AFFINITY " be registration mark, vistanex), TAFMER P0480 (Mitsui Chemicals, Inc System, ethylene-propylene copolymer, " TAFMER " be registration mark), TAFMER A4070S (ethylene-butene copolymer, Mitsui Chemicals Co. Ltd. system, alpha-olefin copolymer resin, " TAFMER " be registration mark) etc. commercially available material.
On the basis of the quality of adhesive composite, the content of olefin resin can be with adhesive composite (article shaped 10) It is 0.3~10 mass %, 0.5~4 mass % or 1~3 mass %.Situation of the content of olefin resin less than 0.3 mass % Under, there is cementability and improve or the reduction of wire drawing inhibition.If, more than 10 mass %, having can for the content of olefin resin Intermiscibility reduction or heat endurance reduction etc. can occur.
The Tissuemat E used in lining material 20 by means of differential scanning calorimetry determine (DSC) determine fusing point can be 80~135 DEG C.Tissuemat E as lining material 20 (releasing agent) is less than in the case of 80 DEG C by the fusing point that DSC is obtained, Heat resistance with the possibility of adhesion inhibition reduction and bonding agent under the Asia hot environment comprising Japan The possibility of reduction.On the other hand, it is difficult to obtain with the Tissuemat E more than 135 DEG C of fusing points.It is molten on what is obtained by DSC Point determine, under nitrogen atmosphere with programming rate 2 DEG C/min carry out.As device is determined, for example, can use DSC6220 (SII System).
Tissuemat E can be coordinated in lining material in the form of emulsion wax.The Tissuemat E of emulsion state is particularly easy to It is attached to the surface of adhesive composite article shaped 10.
The surfactant used in lining material is used to improve the compatibility of Tissuemat E.Tissuemat E is used alone When, in order to obtain the resistance to adhesive under high temperature and humidity environment, it is necessary to be coated with high concentration, after coating, needed when being dried Want the plenty of time.In addition, surfactant be used alone when, cannot obtain more under high temperature and humidity environment substantially resistant to adhesive.
The anionic surfactant of lining material 20 can have sulfonic group as main hydrophilic radical.Anionic property table Face activating agent is generally widely used as host, emulsifying agent, dispersant, foaming agent of detergent, shampoo, hand lotion, toothpaste etc. etc.. It is the surfactant of anionic for example as main hydrophilic radical, sodium carboxy methyl cellulose, alkyl sulfate can be enumerated, gathered Oxygen vinyl alkyl ether sulfate, Di-sodium Sulfo-succinate Mono Est-er, sulfosuccinic acid dialkyl salt, acyl sarcosinates, potash soap, bay Base ether carboxylate, alkylbenzenesulfonate, phosphate monoester, di-phosphate ester.From easy coated adhesive composite (article shaped 10) Surface aspect is set out, preferably with sulfonic anionic surfactant, wherein it is preferred that alkylbenzenesulfonate.These the moon from Sub- property surfactant using a kind or can combine two or more and use.
The adhesion amount of anionic surfactant, relative to the adhesive composite (adhesive composite through panelization Article shaped 10) surface area, can be 0.001~0.5g/m2Or 0.01~0.06g/m2.If the adhesion amount is (coated Amount) it is less than 0.001g/m2, then the tendency for being reduced with adhesion inhibition.If adhesion amount is more than 0.5g/m2, then with hot melt The tendency of the bonding force relative reduction of bonding agent.
It is attached in the article shaped of adhesive composite as the lining material comprising anionic surfactant is made Method, as long as preferably uniformly form coated thickness in the way of without coated omission on the hot-melt adhesive through panelization Method, is just not particularly limited.For example, can be by being added in the tank that is used when the adhesive composite of melting is cooled down The aqueous solution comprising 5~30 mass % Tissuemat Es and 0.3~3 mass % anionic surfactants, in the aqueous solution The method of hot-melt adhesive is impregnated lining material is attached to the surface of article shaped.Or, can by will melt bonding The severing of agent composition and panelization, then, quilt are used to the spray method of the above-mentioned aqueous solution of hot-melt adhesive through panelization Cover the surface of the coated article shaped of material.Or, can spray the above-mentioned aqueous solution to the pearl article shaped of adhesive composite, so that Use the surface of the coated adhesive composite article shaped of lining material.
Adhesive composite can further include antioxidant.As the antioxidant for being used, it is not particularly limited, Phenol system, organic sulfur system, hindered phenol series, amine system of being obstructed, organophosphor system hindered phenol series, amine system etc. can be enumerated.For example, conduct can be enumerated Phenol antioxidant the -3- of pentaerythrite four (3,5- di-t-butyl -4- hydroxy phenyls) propionic ester (SONGNOX1010, The trade name of SONGWON IND.) and n-octadecane base -3- (3,5- di-t-butyl -4- hydroxy phenyls) propionic ester It is (SONGNOX1076, SONGWON IND. trade names) and sub- as three (2,4- di-t-butyls phenyl) of phosphorous antioxidant Phosphate (trade name of SONGNOX1680, SONGWON IND.) etc..In addition, they can use a kind or 2 kinds of combination It is used above.
The content of antioxidant can be with the basis of the quality of adhesive composite in adhesive composite (article shaped 10) It is 0.1~2 mass % or 0.2~1 mass %.It is in the range of 0.1~2 mass % by making the content of antioxidant, Heat endurance etc. is further improved.
Adhesive composite can as needed in right amount comprising releasing agents such as higher fatty acids, higher fatty acid metal salts; Coupling agent, silicone oil and silicone rubber powder iso-stress moderator;The pigment such as carbon black or dyestuff;Ultra-violet absorber;It is coated Surfactant beyond the anionic surfactant on main component surface;Halogen, the fire retardant without antimony etc..
In order to further improve anti-flammability, adhesive composite can include the fire retardant containing phosphorus and nitrogen etc..
On adhesive composite, as long as can be uniformly dispersed mixing various raw material, it is possible to use any method Modulation.As usual way, can enumerate after being sufficiently mixed the raw material of regulation use level using mixer etc., use grinding Roller, extruder, puddle mixer, planetary mixer etc. are mixed or melting mixing, and carry out method of deaeration etc. as needed.
In the lining material on the surface of article shaped 10 of the adhesive composite of the coated main component as hot-melt adhesive In 20, Tissuemat E is not particularly limited with the mixed proportion of surfactant, is arbitrary proportion.With the content phase of Tissuemat E Than the content ratio of surfactant can be lacked.The content of Tissuemat E on the basis of the quality of lining material 20 can for 1~ 99 mass % or 70~99 mass %.The content of surfactant can be 1~99 on the basis of the quality of lining material 20 Quality % or 1~30 mass %.
The method for obtaining the article shaped of adhesive composite is not particularly limited.For example after melting being used use cutter The method of the adhesive composite of severing solidification.In which case it is possible to use rotor etc. is capable of the cutter of continuous severing.For Prevent adhesive composite to be attached on cutter, the anionic surfactant's aqueous solution that can be sprayed near cutter or Person's severing adhesive composite in aqueous.
Embodiment
Next the present invention is specifically described using embodiment and comparative example, but is implemented the invention is not restricted to these Example.
Embodiment 1~6, comparative example 1~4
According to the cooperation shown in table 1, hot-melt adhesive is modulated.Unit of fit in table is quality %.
The vinyl-vinyl acetate copolymer (EVA) used in research, uses (the eastern Cao's strain formula meetings of Ultrathene 722 The trade name of society, the mass % of vinyl acetate (VA) containing ratio 28, melt flow rate (MFR) (MFR)=400, ring and ball softening point 82 DEG C) and Ultrathene 735 (trade name of TOSOH Co., Ltd, the mass % of VA containing ratios 28, melt flow rate (MFR) (MFR)=1000,85 DEG C of ring and ball softening point) 2 kinds.
As olefin resin, TAFMER P0480 (trade name of Mitsui Chemicals, Inc, ethylene-propylene system are used Alpha-olefin copolymer resin).
As resin of tackification, using Petropols ARKON P100 (trade name of Arakawa Chemical Industries, Ltd., Hydrogenation C9 Petropols, 100 DEG C of softening point) and ARKON P125 (trade name of Arakawa Chemical Industries, Ltd., hydrogenation C9 125 DEG C of Petropols, softening point) 2 kinds.
As wax, use SaSOL H1 (trade name, the fischer-tropsch wax of husky rope company system).
As Tissuemat E, AQACER1547 (trade name, the oxidized high-densities of Bi Ke chemistry Amada Co., Ltd. is used Polythene wax emulsion, 125 DEG C of fusing point, nonvolatile component 35%), HORDMERPE03 (Bi Ke chemistry Amada Co., Ltd. business The name of an article, polythene wax emulsion, 95 DEG C of fusing point, nonvolatile component 40%), AQUAMAT208 (Bi Ke chemistry Amada Co., Ltd. systems Trade name, oxidized high-density polyethylene wax emulsion, 135 DEG C of fusing point, nonvolatile component 35%) 3 kinds.As polypropylene wax, make With CERAFLOUR970 (trade name, polypropylene wax, 160 DEG C of the fusing point of Bi Ke chemistry Amada Co., Ltd.).On polyethylene The fusing point of wax and polypropylene wax, using the DSC6220 of SII, is carried out under nitrogen atmosphere, under conditions of 2 DEG C/min of programming rate Determine.
As surfactant, Monogen Y100 (trade name of Di-ichi Kogyo Seiyaku Co., Ltd., senior ethanol are used Sodium sulfovinate (NaLS), anionic surfactant) and the QUARTAMIN 24P (commodity of Kao Corp Name, lauryl trimethyl ammonium chloride, cationic surfactant).
Vinyl-vinyl acetate copolymer, olefin resin, resin of tackification and wax are put into the heating for being set as 180 DEG C In kneader, fully melt.The mixture mixing that will be melted is uniform, is then molded, and obtains (hot melt) bonding agent group of pearl The article shaped of compound.For the article shaped of adhesive composite, the polyethylene comprising 12 mass % concentration is coated with using sprayer Wax or polypropylene wax, the aqueous solution of the surfactant of 3 mass % concentration.Then, blowing 40 DEG C of warm air makes the water-soluble of coating Liquid is dried, and obtains being attached with the hot-melt adhesive of lining material.
Table 1
Hot-melt adhesive on gained, viscosity, softening point, resistance to adhesive, stripping are evaluated by method as shown below Adhesive strength, creep resistant, heat endurance.In showing the result in table 2.
Viscosity
According to JIS K6862, using BH types rotation viscometer and using No. 2 rotors, each hot melt is determined with rotating speed 10rpm viscous Connect viscosity of the agent at 180 DEG C.
Softening point
According to JIS K6863, the softening point of each hot-melt adhesive is determined using ring and ball method.
Resistance to adhesive
Instead of using the method for sprayer, the water comprising lining material is impregnated in by making the article shaped of adhesive composite Method in solution, makes lining material be attached in article shaped.Then, screen cloth (80 mesh are used:180 μm of mesh) by bonding agent group After the article shaped filtering of compound, in 40 DEG C of dryings 30 minutes.Article shaped (the heat of the adhesive composite of lining material will be attached to Fusible dose) it is put into cup, while apply the load of 58.8N (6kgf), while under 40 DEG C, the high temperature and humidity environment of 90%RH Place more than 12 hours.
Then, handle cup is put upside down, the quality of the hot-melt adhesive that measure falls.Resistance to adhesive is evaluated by following formula.Numeral is got over Represent that resistance to adhesive is higher greatly.
Resistance to adhesive [%]={ gross mass of the quality/hot-melt adhesive of the hot-melt adhesive for falling } × 100
Peel off adhesive strength
The hot-melt adhesive that will warm up 180 DEG C and melting is coated into the pearl of about 0.07g/25mm on the surface of carton paper Shape, sphere time is fitted the back side of carton paper after about 2 seconds, crimp within about 2 seconds, makes carton paper viscous by hot-melt adhesive The test film for connecing.Using the test film, 180 ° of disbonded test (draw speeds are determined by AUTOGRAPH:100mm/ points Clock, specimen temperature:23℃).The bonding agent of the test film after visual observations measure, confirms destruction situation.Mark A is represented and glued Junctor (carton paper) and the destruction at bonding agent interface, mark B represent the destruction (material destruction) of carton paper.
Creep resistant
On carton paper (2 × 25 × 100mm), the hot-melt adhesive of 180 DEG C and melting is will warm up with the pearl of diameter 4mm Shape is coated with the length of 25mm on the width of carton paper.After placing 2 seconds, to overlap another hard on the bonding agent of coating Cardboard, 9.8 × 104Pa, compacting under conditions of 5 seconds.After laminating, after the placement 1 day of (25 DEG C) of room temperature, in 50 DEG C of atmosphere Apply the load of 0.5N (50gf)/25mm, determine the index of time (hr) for being fallen until hardboard as creep resistant.
Heat endurance
Take 150g hot-melt adhesives to be placed in the sample bottle of 250ml, heat while being placed 336 hours at 180 DEG C.See The state change after placing is examined, according to following judgment standard, the heat endurance of hot-melt adhesive is evaluated.
“A”:Stateless changes
“B”:Somewhat visible separation, but be the scope allowed in practicality
“C”:There is the generation of gel compound, carbide etc.
Table 2
* because polypropylene wax does not mix with surfactant, therefore cannot coating material.
As shown in table 2, the comparative example 1 of surfactant is free of in lining material and polyethylene is free of in lining material The hot-melt adhesive of the comparative example 2 of wax, is wanting in resistance to adhesive.
What is used in comparative example 3 cannot mix with 160 DEG C of polypropylene waxes of fusing point with anionic surfactant.Cause This, it is impossible to make lining material be attached to comprising as main material vinyl-vinyl acetate copolymer adhesive composite into On type thing, cannot be carried out as the evaluation of hot-melt adhesive.Additionally, using cationic surfactant as lining material Surfactant comparative example 4 in the case of, although lining material can be made to be attached in the article shaped of adhesive composite, It is 5% but resistance to adhesive is poor, stripping adhesive strength is also low, is 4.0N/25mm.
On the other hand, in the case of embodiment 1~6, resistance to adhesive is more than or equal to 90%, is surveyed adhesive strength is peeled off Material destruction is generated in fixed.In addition, being more than or equal to 4.0N as the stripping adhesive strength of cementability index, creep resistant is 10hr.Heat endurance is also good.
Experimental result more than is confirmed, even if in accordance with the invention it is possible to providing a kind of under high temperature and humidity environment Adhesion, the hot-melt adhesive excellent in adhesion to carton paper can be adequately suppressed.
Embodiment 7~10, comparative example 5~8
According to the cooperation shown in table 3, operated in the same manner as the grade of embodiment 1, make spherical hot-melt adhesive.In table 3 Unit of fit is quality %.
Used as olefin resin, using RT2585A, (trade name of REXTAC, LLC company system, ethylene-propylene system alpha-olefin are total to Copolymer resin).As other compositions, the material same with the grade of embodiment 1 is used.
Table 3
Hot-melt adhesive on gained, evaluates softening point, resistance to adhesive, Shore hardness.Shore hardness passes through following institutes The method shown is evaluated.Other evaluations are carried out by the method same with the grade of embodiment 1.In showing the result in table 4.
Shore hardness
According to JIS A Shore hardness, Shore hardness of each hot-melt adhesive at 23 DEG C is determined.
Table 4
* is not mixed due to polypropylene wax with surfactant, therefore cannot coating material.
As shown in table 4, in the case of the hot-melt adhesive of the comparative example 5 without vinyl-vinyl acetate copolymer, Shore Hardness is less than 30, and resistance to adhesive is poor.In addition, in the hot-melt adhesive of comparative example 6 of the lining material without Tissuemat E, resistance to adhesion Property is also poor.
Cannot mix with anionic surfactant with 160 DEG C of polypropylene waxes of fusing point used in comparative example 7. Therefore, it is impossible to make lining material be attached to the adhesive composite comprising the vinyl-vinyl acetate copolymer as main material In article shaped, cannot be carried out as the evaluation of hot-melt adhesive.Additionally, using cationic surfactant as coated material In the case of the comparative example 8 of the surfactant of material, although lining material can be made to be attached to the article shaped of adhesive composite On, but resistance to adhesive is poor, is 5%.
On the other hand, the resistance to adhesive of embodiment 7~10 is more than or equal to 90%, is good.According to the present invention, confirm Even if the hot-melt adhesive of adhesion can be obtained also being adequately suppressed under high temperature and humidity environment.
Industrial applicibility
Hot-melt adhesive of the invention can be used for being bonded various adherend, even if for particularly carton paper, waterproof The adherend of the difficult cementability such as processing paper, it is also possible to play excellent cementability.
Symbol description
1:Hot-melt adhesive, 10:The article shaped of adhesive composite, 20:Lining material.

Claims (7)

1. a kind of hot-melt adhesive, it has:
The article shaped of adhesive composite and
The lining material on the article shaped surface is attached to,
The adhesive composite includes vinyl-vinyl acetate copolymer, resin of tackification and wax,
The lining material includes anionic surfactant and Tissuemat E.
2. hot-melt adhesive according to claim 1, on the basis of the quality of the adhesive composite, the bonding agent Composition comprising the vinyl-vinyl acetate copolymer of 30~60 mass %, the resin of tackification of 25~60 mass %, With the wax of 5~30 mass %.
3. hot-melt adhesive according to claim 1, the adhesive composite further includes olefin resin.
4. hot-melt adhesive according to claim 3, the alkene of the adhesive composite comprising 0.3~10 mass % Hydrocarbon resin.
5. the hot-melt adhesive according to any one of Claims 1 to 4, the Tissuemat E is surveyed by means of differential scanning calorimetry Surely the fusing point for obtaining is 80~135 DEG C.
6. the hot-melt adhesive according to any one of Claims 1 to 4, the article shaped is with 3~30mm diameters of axle long Coccoid.
7. the hot-melt adhesive according to any one of Claims 1 to 4, the softening point of the hot-melt adhesive is 60~150 DEG C,
The Durometer A hardness of the JIS K6253 defineds of the hot-melt adhesive is 50~99 at 23 DEG C.
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