CN108070330A - Fluid sealant is with bonding agent and cover materials film - Google Patents
Fluid sealant is with bonding agent and cover materials film Download PDFInfo
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- CN108070330A CN108070330A CN201711071513.1A CN201711071513A CN108070330A CN 108070330 A CN108070330 A CN 108070330A CN 201711071513 A CN201711071513 A CN 201711071513A CN 108070330 A CN108070330 A CN 108070330A
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- vinyl acetate
- bonding agent
- fluid sealant
- vinyl
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives 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
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0846—Copolymers of ethene with unsaturated hydrocarbons containing other atoms than carbon or hydrogen atoms
- C09J123/0853—Vinylacetate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J123/00—Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
- C09J123/02—Adhesives 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
- C09J123/04—Homopolymers or copolymers of ethene
- C09J123/08—Copolymers of ethene
- C09J123/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
- C09J123/0815—Copolymers of ethene with aliphatic 1-olefins
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/312—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2423/00—Presence of polyolefin
- C09J2423/04—Presence of homo or copolymers of ethene
- C09J2423/046—Presence of homo or copolymers of ethene in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Laminated Bodies (AREA)
- Packages (AREA)
- Wrappers (AREA)
- Adhesive Tapes (AREA)
Abstract
It is an object of the invention to provide a kind of shaping processability it is excellent, meet to the fluid sealants of the cover materials available for A pet containers of the sealing intensities of A PET containers, adhesive strength with bonding agent and cover materials film.The cover materials fluid sealant of the container is included with bonding agent：10~50 parts by weight of ethylene vinyl acetate copolymer (A), 10~50 parts by weight of ethylene vinyl acetate copolymer (B) that vinyl acetate content is 8~25 weight % and 5~40 parts by weight of tackifier resins (C) (total amount of (A), (B) and (C) are 100 parts by weight) that vinyl acetate content is 3~15 weight %, the difference of the vinyl acetate content of ethylene vinyl acetate copolymer (A) and the vinyl acetate content of ethylene vinyl acetate copolymer (B) is 3~20 weight %.
Description
Technical field
The present invention relates to the film of the cover materials for container, more specifically, it is related to that shaping processability is excellent, can obtain
Highly dense sealing strength and adhesive strength, the amorphism polyethylene terephthalate (following A-PET) that is used for of excellent heat resistance are made
The fluid sealant of the cover materials of container is with bonding agent and cover materials film.
Background technology
In the past, used in the packaging of drink, pharmaceuticals, industrial components etc. it was polyethylene, polypropylene, polystyrene etc.
Plastic containers or the paper-made vessel based on paper, and used in its cover materials it is the protection being used to implement to content
Property with stable adhesive strength and with when removing with the easy-peel of appropriate intensity, that is, openable peelability
From property film.So far, for containers such as polypropylene, polystyrene, it is known to numerous materials, but it is cheap in recent years
And the transparent and excellent A-PET containers of cold resistance, not yet find excellent release performance film in terms of practicality.Previous is easy
Fissility film is in the case of for the cover materials of A-PET containers, since adhesive strength is weak, exist due to transport,
Vibration during keeping falls and sets heat-sealing temperature the problem of cover is caused to be opened or due to going for high-adhesive-strength
The problem of determining higher and container deformation, leakproofness caused to decline.In addition, taken care of after bonding if in low temperature environment,
Also existing causes sealing intensity to reduce the shortcomings that such, and there are problems in actual use.It is close generally, as cover materials
Sealing bonding agent, it is known to the mixture of polyethylene, vinyl-vinyl acetate copolymer and tackifier is included, but so
Material in, compared with A-PET containers, sufficient adhesive strength can not be obtained.In addition, it uses comprising ethylene-α-alkene
The resin combination of hydrocarbon copolymer, tackifier and olefin type elastomer and/or styrenic elastomer is (see, for example, patent text
Offer 1), comprising ethene-alpha-olefin copolymer and ethylene-polar monomer copolymer, A-B-A types block copolymer, tackifier it is close
Closure material (see, for example, patent document 2), but these materials can not meet shaping processability, sealing intensity and adhesive strength
Complete characteristic.
Prior art literature
Patent document
Patent document 1：Japanese Unexamined Patent Publication 1999-269319 publications
Patent document 2：No. 4438108 publications of Japanese Patent No.
The content of the invention
Problems to be solved by the invention
However, any means in above-mentioned can not fully meet shaping processability, strong to the sealing of A-PET containers
Degree, adhesive strength.
It is an object of the invention to provide shaping processability it is excellent, meet it is strong to the sealing intensities of A-PET containers, bonding
The fluid sealant of the cover materials for A-PET containers of degree is with bonding agent and cover materials film.
Solution to the problem
The inventors of the present invention have made intensive studies in order to solve the above problems, it turns out that, include specific 2 kinds of second
The fluid sealant bonding agent of alkene-vinyl acetate copolymer, tackifier, shaping processability is excellent, the sealing to A-PET containers
Intensity, adhesive strength are excellent, and then complete the present invention.
That is, the present invention relates to the cover materials fluid sealant bonding agent of container and cover materials film, the lids of the container
Body material fluid sealant is included with bonding agent：Vinyl acetate content is the vinyl-vinyl acetate copolymer of 3~15 weight %
(A) 10~50 parts by weight, 10~50 weight of vinyl-vinyl acetate copolymer (B) that vinyl acetate content is 8~25 weight %
Measure 5~40 parts by weight of part and tackifier resins (C) (total amount of (A), (B) and (C) are 100 parts by weight), ethane-acetic acid ethyenyl
The difference of the vinyl acetate content of ester copolymer (A) and the vinyl acetate content of vinyl-vinyl acetate copolymer (B) is 3
~20 weight %, the vinyl acetate content of vinyl-vinyl acetate copolymer (A) are less than vinyl-vinyl acetate copolymer
(B) vinyl acetate content.
Hereinafter, the present invention is described in detail for pin.
The cover materials fluid sealant of the container of the present invention is included with bonding agent：Vinyl acetate content is 3~15 weight %
10~50 parts by weight of vinyl-vinyl acetate copolymer (A), vinyl acetate content be 8~25 weight % ethylene-acetate
(total amount of (A), (B) and (C) is 5~40 parts by weight of 10~50 parts by weight of vinyl ester copolymers (B) and tackifier resins (C)
100 parts by weight), vinyl acetate content and the vinyl-vinyl acetate copolymer (B) of vinyl-vinyl acetate copolymer (A)
Vinyl acetate content difference for 3~20 weight %, the vinyl acetate content of vinyl-vinyl acetate copolymer (A) is small
In the vinyl acetate content of vinyl-vinyl acetate copolymer (B).
The vinyl acetate content of the vinyl-vinyl acetate copolymer (A) is 3~15 weight %, is preferably 5~10 weights
Measure %.In the case that vinyl acetate content is less than 3 weight %, the low temperature heat seal of gained fluid sealant bonding agent is bad, therefore
Not preferably.On the other hand, in the case that vinyl acetate content is more than 15 weight %, the shaping of gained fluid sealant bonding agent adds
Work is bad, and it is not preferable.It should be noted that the vinyl acetate content in vinyl-vinyl acetate copolymer can pass through
The method that is measured based on JIS K6924-1 is measured.
In addition, the vinyl-vinyl acetate copolymer (A) is based on JIS K 6924-1, in 190 DEG C of temperature, load
The melt flow rate (MFR) measured under 21.18N is preferably in 1~30g/10 points of scope, particularly preferably 3~15g/10 points.Melt
For flow rate in the case of 1g/10 points or more, the shaping processability and adhesive strength of gained fluid sealant bonding agent are excellent, because
This is preferably.On the other hand, in the case where 30g/10 points following, the shaping of gained fluid sealant bonding agent adds melt flow rate (MFR)
Work excellent in stability, therefore preferably.
The vinyl-vinyl acetate copolymer (A) can be obtained by well known manufacturing method, alternatively, it is also possible to use city
Those sold.As concrete example, it can be mentioned, for example (trade name) Ultracene 515, Ultracene 537, Ultracene
540th, Ultracene 541 (TOSOH Co., Ltd's system) etc..
The vinyl acetate content of the vinyl-vinyl acetate copolymer (B) is 8~25 weight %, is preferably 10~20
Weight %.In the case that vinyl acetate content is less than 8 weight %, the low temperature heat seal of gained fluid sealant bonding agent, bonding
Intensity is bad, and it is not preferable.On the other hand, in the case that vinyl acetate content is more than 25 weight %, gained fluid sealant is used viscous
Connect that shaping processability, the resistance to blocking of agent are bad, and it is not preferable.It should be noted that in vinyl-vinyl acetate copolymer
Vinyl acetate content can be measured by the method being measured based on JIS K 6924-1.
In addition, the vinyl-vinyl acetate copolymer (B) based on JIS K 6924-1,190 DEG C of temperature, load
The melt flow rate (MFR) measured under 21.18N is preferably in 1~30g/10 points of scope, particularly preferably 3~20g/10 points.Melt
In the case that flow rate is 1g/10 points or more, the shaping processability and adhesive strength of gained fluid sealant bonding agent are excellent, because
This is preferably.On the other hand, in the case that melt flow rate (MFR) is less than 30g/10 point, the shaping of gained fluid sealant bonding agent adds
Work excellent in stability, therefore preferably.
The vinyl-vinyl acetate copolymer (B) can be obtained by well known manufacturing method, alternatively, it is also possible to use city
Those sold.As concrete example, it can be mentioned, for example (trade name) Ultracene 541, Ultracene 626, Ultracene
625th, Ultracene 633 (TOSOH Co., Ltd's system) etc..
Form the vinyl acetate content and ethane-acetic acid ethyenyl ester of the vinyl-vinyl acetate copolymer (A) of the present invention
The difference of the vinyl acetate content of copolymer (B) is 3~20 weight %, is preferably 3~15 weight %.Vinyl acetate content it
In the case that difference is less than 3 weight %, the adhesive strength of gained fluid sealant bonding agent is bad, and it is not preferable.On the other hand, it is more than
In the case of 20 weight %, the forming stability of gained fluid sealant bonding agent is bad, and it is not preferable.
Form the tackifier (C) of the present invention as long as arbitrary object can then be used by belonging to those of the scope of tackifier
Matter, it can be mentioned, for example：Petropols class, coumarone resin class, phenylethylene as synthesizing petroleum resin class tackifier etc.；Make
For the rosin resinoid of natural resin class tackifier, methyl esters resinoid, glyceride type resin, pentaerythritol ester resinoid, terpenes
Resinoid and their modifier, etc..In these tackifier, synthesizing petroleum resin class tackifier include：Aliphatic category oil tree
Fat, aliphatic category hydrogenated petroleum resin, fragrant same clan Petropols, aromatic series type hydrogenation Petropols, alicyclic ring same clan oil tree
Fat, alicyclic type hydrogenation Petropols, Copolymer hydrogenated petroleum resin etc..Wherein, it is preferable to use aromatic series type hydrogenation oil trees
Fat, alicyclic type hydrogenation Petropols.Particularly, aliphatic category Petropols, fragrant same clan's Petropols, alicyclic will be selected from
At least one of type hydrogenation Petropols and Copolymer Petropols carry out the resin that the hydrogenation of 50~90% parts forms, due to
Sealing intensity and adhesive strength are excellent, therefore preferably.These tackifier can be used alone or be used in combination of two or more.
The tackifier (C) are preferably the tackifier in 90~140 DEG C of scopes using the softening point that ring and ball method measures, especially excellent
Elect 100~135 DEG C as.In the case that softening point is less than 90 DEG C, resistance to blocking is bad, in the case of 140 DEG C, low temperature environment
In adhesive strength retentivity it is bad.
The tackifier (C) can be used it is commercially available those.As concrete example, it can be mentioned, for example：(trade name) Alcon M90,
Alcon M115、Alcon M135、Alcon P100、Alcon P125、I-MARV S110、I-MARV P125、T-REZ
RC115, T-REZ HA125, Pine Crystal KE-311, YS Resin PX1150, YS Resin PX1150N etc..
The use level of vinyl-vinyl acetate copolymer (A), vinyl-vinyl acetate copolymer (B) and tackifier (C)
As described below, the total amount of (A), (B) and (C) are 100 parts by weight.
The mixing ratio of vinyl-vinyl acetate copolymer (A) is 10~50 parts by weight, especially since can be formed
Adhesive strength, shaping processability balancing good fluid sealant bonding agent, therefore preferably 20~40 parts by weight.Less than 10 weights
In the case of measuring part, the forming stability of gained fluid sealant bonding agent is bad, and it is not preferable.On the other hand, more than 50
In the case of parts by weight, gained fluid sealant is become inadequate with the adhesive strength of bonding agent, and it is not preferable.
The mixing ratio of vinyl-vinyl acetate copolymer (B) is 10~50 parts by weight, especially since can be formed
Adhesive strength, shaping processability balancing good fluid sealant bonding agent, therefore preferably 20~40 parts by weight.Less than 10 weights
In the case of measuring part, the adhesive strength of gained fluid sealant bonding agent is bad, and it is not preferable.On the other hand, more than 50 parts by weight
In the case of, the forming stability of gained fluid sealant bonding agent is bad, and resistance to blocking is also bad, and it is not preferable.
The use level of the tackifier (C) is 5~40 parts by weight, particularly preferably 15~30 parts by weight.Less than 5 parts by weight
In the case of, the sealing intensity and adhesive strength of gained fluid sealant bonding agent are bad, and it is not preferable.On the other hand, more than 40 weights
In the case of measuring part, roll release during forming is bad, and roll blocking can occur, and it is not preferable.
Low temperature seal and the excellent bonding agent of sealing intensity are particularly in order to obtain, in the fluid sealant bonding agent of the present invention
In, preferably density of the cooperation based on (1998) measure of JIS K6922-1 is in 860~910kg/m3The ethene-alpha-olefin of scope
Copolymer (D).In addition, as use level at this time, compared with vinyl-vinyl acetate copolymer (A), the ethylene-acetate
100 parts by weight of total amount of vinyl ester copolymers (B), the tackifier resins (C), which is preferably 10
~50 parts by weight, particularly preferably 20~40 parts by weight.
As the ethene-alpha-olefin copolymer (D), as long as belong to the model of commonly known as ethene-alpha-olefin copolymer
Those of farmland can then use arbitrary substance.It as alpha-olefin, is not particularly limited, but can enumerate：Carbon number 3~12
Propylene, 1- butylene, 1- amylenes, 1- hexenes, 4-methyl-1-pentene, 1- octenes, 1- decene, 1- dodecylenes etc..These ethylene-
Alpha olefin copolymer (D) can make ethylene and α-alkene by using Ziegler series catalysts or chromium-based catalysts, metalloscene catalyst
Hydrocarbon is copolymerized and suitably manufactures.As polymerization, solution polymerization process, method for high pressure polymerization, gaseous polymerization etc. can be enumerated.Into one
Step, for the ethene-alpha-olefin copolymer (D), use gel permeation chromatography, under conditions of as shown below, utilize
Monodisperse polystyrene measures general calibration curve, with the weight average molecular weight (Mw) that the molecular weight of the polyethylene of straight chain calculates with
When the ratio between number-average molecular weight (Mn) (Mw/Mn) is less than 3, low temperature heat seal and sealing intensity are excellent, therefore preferably.
Machine：Waters company system 150C ALC/GPC
Solvent：1,2,4- trichloro-benzenes
Flow velocity：1ml/min
Temperature：140℃
Measured concentration：30mg/30ml
Injection rate：100μl
Chromatographic column：Tosoh (strain) TSKgel GMH HR-H processed 3
In addition, for the ethene-alpha-olefin copolymer (D), in being measured using the heating of differential scanning calorimeter
To endothermic curve maximum peak position temperature (Tm (DEG C)) and the carbon number that is obtained by the measure of infrared absorption spectrum it is every
When 1000 corresponding short chain branches number (SCB) meet the relation of formula (1), the composition narrowly distributing of ethene-alpha-olefin copolymer, meeting
Cause low-density (high short chain branch number) ingredient that low temperature heat seal is deteriorated few and preferred.This is because ethene-alpha-olefin is copolymerized
There are following relations for object：The every 1000 corresponding short chain branches number (SCB) of carbon number is more, then density is lower, and fusing point is lower.
Even increasing short chain branch number to reduce fusing point, import substantial amounts of short chain branch number in the part of low molecular weight and wrap
Having contained the fusing point of the ethene-alpha-olefin copolymer of a large amount of low-density (high short chain branch number) can also become higher.On the other hand, even
For the ethene-alpha-olefin copolymer of same short chain branch number, equably led in the part from low molecular weight to high molecular weight
The ethene-alpha-olefin copolymer of short chain branch is entered, has been total to the ethene-alpha-olefin comprising a large amount of low-density (high short chain branch number)
Polymers is compared, and fusing point is relatively low.
Tm ＜ -1.8 × SCB+140 (1)
Such ethene-alpha-olefin copolymer (D) can for example pass through the method system disclosed in publication that the example below goes out
It makes.
It can enumerate：Japanese Unexamined Patent Application 60-35006 publications, Japanese Unexamined Patent Application 60-35007 publications, Japanese Unexamined Patent Application
60-35008 publications, Japanese Unexamined Patent Publication 3-163088 publications, Japanese Unexamined Patent Application 61-296008 publications, Japanese Unexamined Patent Application
63-22804 publications, Japanese Unexamined Patent Application 58-19309 publications, Japanese Unexamined Patent Application 63-61010 publications, Japanese Unexamined Patent Application
63-152608 publications, Japanese Unexamined Patent Application 63-264606 publications, Japanese Unexamined Patent Application 63-280703 publications, Japanese Unexamined Patent Publication
Clear 64-6003 publications, Japanese Unexamined Patent Publication 1-95110 publications, Japanese Unexamined Patent Publication 3-62806 publications, Japanese Unexamined Patent Publication 1-
No. 259004 publications, Japanese Unexamined Patent Application 64-45406 publications, Japanese Unexamined Patent Application 60-106808 publications, Japanese Unexamined Patent Application 60-
No. 137911 publications, Japanese Unexamined Patent Application 61-296008 publications, patent public affairs table 63-501369 publications, Japanese Unexamined Patent Application 61-
No. 221207 publications, Japanese Unexamined Patent Publication 2-22307 publications, Japanese Unexamined Patent Publication 2-173110 publications, Japanese Unexamined Patent Publication 2-
No. 302410 publications, Japanese Unexamined Patent Publication 1-129003 publications, Japanese Unexamined Patent Publication 1-210404 publications, Japanese Unexamined Patent Publication 3-
No. 66710 publications, Japanese Unexamined Patent Publication 3-70710 publications, Japanese Unexamined Patent Publication 1-207248 publications, Japanese Unexamined Patent Application 63-
No. 222177 publications, Japanese Unexamined Patent Application 63-222178 publications, Japanese Unexamined Patent Application 63-222179 publications, Japanese Unexamined Patent Publication 1-
No. 12407 publications, Japanese Unexamined Patent Publication 1-301704 publications, Japanese Unexamined Patent Publication 1-319489 publications, Japanese Unexamined Patent Publication 3-
No. 74412 publications, Japanese Unexamined Patent Application 61-264010 publications, Japanese Unexamined Patent Publication 1-275609 publications, Japanese Unexamined Patent Application 63-
No. 251405 publications, Japanese Unexamined Patent Application 64-74202 publications, Japanese Unexamined Patent Publication 2-41303 publications, Japanese Unexamined Patent Publication 1-
No. 31488 publications, Japanese Unexamined Patent Publication 3-56508 publications, Japanese Unexamined Patent Publication 3-70708 publications, Japanese Unexamined Patent Publication 3-70709
Number publication etc..
In addition, the ethene-alpha-olefin copolymer (D) can also be commercially available product.
Since particularly sealing intensity and the excellent bonding agent of adhesive strength can be obtained, used in the fluid sealant of the present invention
Preferably coordinate vinyl aromatic hydrocarbon and alkene or the thermoplastic block copolymers (E) of alkadienes in bonding agent.Also, as this
When use level, compared with the vinyl-vinyl acetate copolymer (A), vinyl-vinyl acetate copolymer (B), the thickening
100 parts by weight of total amount of agent resin (C) or compared in the vinyl-vinyl acetate copolymer (A), the ethylene-acetate second
Enoate copolymer (B), the tackifier resins (C) 100 parts by weight of total amount in the ethene-alpha-olefin copolymer (D) is coordinated to form
Amount, the thermoplastic block copolymers (E) of the vinyl aromatic hydrocarbon and alkene or alkadienes are preferably 0.5~5 parts by weight, spy
It You Xuanwei not 1~4 parts by weight.
The vinyl aromatic hydrocarbon and the thermoplastic block copolymers (E) of alkene or alkadienes for forming the present invention are general formulas
(A-B) (wherein, the A in formula and A ' expression vinyl aromatic hydrocarbons polymer blocks, B are represented by n, (A-B) n-A ' or (A-B) m-X
Alkene or diene polymer blocks, n represent that 1~5 integer, m represent that 2~7 integer, X represent the multi-functional chemical combination of m valencys
Object) shown in at least one-side ends being made of linear chain structure, radial configuration or branched structure be vinyl aromatic hydrocarbon polymerization
The polymer with block structure or its hydrogenation products of object block.As vinyl aromatic hydrocarbon used herein
Example, can enumerate：Styrene, α-methylstyrene, vinyltoluene, p-tert-butylstyrene, vinyl-dimethyl benzene, ethyl
Vinyl-dimethyl benzene, vinyl naphthalene and their mixture etc..In these, particularly preferred styrene.On the other hand, as alkene
Example, alpha-olefins such as ethylene, propylene, 1- butylene etc. can be enumerated, as the example of alkadienes, butadiene, isoamyl two can be enumerated
Alkene equiconjugate alkadienes.In addition, as the thermoplastic block copolymers of the vinyl aromatic hydrocarbon and alkadienes (E), can make
It is carried out being hydrogenated with the copolymer formed with the polymer blocks to being formed by conjugate diene polymerization, in addition, the alkene list in B block
Member account for it is leading in the case of, conjugated diene and the copolymer of vinyl aromatic hydrocarbon can also be used.In these, in the present invention
In, preferably there is the vinyl aromatic hydrocarbon of vinyl aromatic hydrocarbon polymer blocks and the heat of alkene or alkadienes in two ends
Plasticity block copolymer, from the aspect of thermal stability is improved, particularly preferably using polystyrene-polybutadiene-polyphenyl second
The hydrogenation products (styrene-ethylene/butylene-styrene triblock copolymer, be denoted as SEBS below) of alkene block copolymer.
In addition, the thermoplastic block copolymers (E) of the vinyl aromatic hydrocarbon and alkene or alkadienes are in 200 DEG C, 5.0kg
Melt flow rate (MFR) under load is preferably in the range of 10~70g/10 points, particularly preferably 12~65g/10 points.
Further, since shaping processability and the excellent fluid sealant bonding agent of adhesive strength can be obtained, therefore the preferably second
Alkenyl aroma race hydrocarbon is hydrogenated styrene-butadiene-di-block copolymer with the thermoplastic block copolymers (E) of alkene or alkadienes
The mixture of object and hydrogenated styrene-butadiene-styrene-triblock copolymer, and its mixing ratio is 5/5~9/1, preferably benzene
Ethylene contents are 20~50 weight %.
The thermoplastic block copolymers (E) of the vinyl aromatic hydrocarbon and alkene or alkadienes can be used it is commercially available those.
As concrete example, it can be mentioned, for example (trade name) Kraton G1726MS (Kraton Polymer Co. Ltd. systems) etc..
In the range of the effect of the present invention is not destroyed, other heat can also be used in fluid sealant bonding agent of the invention
Plastic resin or rubber and light stabilizer, ultra-violet absorber, nucleating agent, lubricant, antioxidant, antiblocking agent, mobility
Modifying agent, releasing agent, fire retardant, colorant, inorganic neutralizer, hydrochloric acid absorbent, filler, conductive agent etc..
The preparation method of fluid sealant bonding agent as the present invention, can be with as long as it can prepare fluid sealant bonding agent
Using any method, it can be mentioned, for example by vinyl-vinyl acetate copolymer (A), the vinyl-vinyl acetate copolymer
(B), the tackifier resins (C) while it is blended in advance using mixers such as Henschel mixer or rotary drums, and utilizes single screw rod
Or the method that the extruder of twin-screw carries out melting mixing.
The fluid sealant of the present invention is used as the cover materials fluid sealant bonding agent of container with bonding agent.As container,
Suitable for the container using polyethylene terephthalate as principal component.
The cover materials of the present invention include at least 2 layers of supporting base material layer and above-mentioned fluid sealant adhesive layer with film.Make
To form the supporting base material of supporting base material layer, as long as the material with self-supporting, it can be mentioned, for example：By polyethylene,
The olefine kind resins such as polypropylene, ethylene-acid copolymer resins, polyethylene terephthalate, polybutylene terephthalate (PBT),
It is plastic foil that the thermoplastic resins such as the polyester resins such as polyethylene naphthalate, polyamide-based resin are formed, Japan paper, multiple
The paper such as combined paper, metal foil, the independent or laminated body of these materials being made of metals such as aluminium etc..The thickness of supporting base material layer can be with
Made choice in the range of it will not destroy mechanical strength, workability etc. according to purposes, but usually 5~100 μm or so, it is excellent
Elect 10~50 μm as.
The thickness of fluid sealant adhesive layer can in the range of it will not destroy cementability, workability etc. according to purposes and
It makes choice, but usually 5~50 μm or so, preferably 15~30 μm.
In the present invention, between above-mentioned supporting base material layer and fluid sealant adhesive layer, in order to improve two layers of adaptation,
Interlayer can also be set.The interlayer can be made of ingredients such as the thermoplastic resins such as polyolefin, thermoplastic elastomer (TPE)s, these
Ingredient can be used alone or be used in mixed way two or more.For example, as polyolefin, polyethylene, ethylene copolymer can be enumerated
(ethene-alpha-olefin copolymer, propylene-ethylene copolymers, ethylene-acrylic acid copolymer, ethylene-methacrylic acid copolymer, second
Alkene-methyl acrylate copolymer etc.), its modifier etc..In the range of the effect of the present invention is not destroyed, it can be used in interlayer
Various additives, for example, antioxidant, lubricant, antistatic agent, conductive agent, antiblocking agent, tackifier etc..
The thickness in interlayer can will not make choice in the range of breakdown operation etc. according to purposes, but be usually
5~30 μm or so.
In the present invention, between above-mentioned supporting base material layer and fluid sealant adhesive layer or above-mentioned supporting base material layer is in
Between interbed, in order to improve two layers of adaptation, the priming coats such as polyurethane can also be set.
The cover materials of the present invention are by the use of film suitable for as the cover materials of A-PET containers, having leakproofness and easily peelable
Property.
It as the manufacturing method of the cover materials film, is not particularly limited, can enumerate fluid sealant bonding agent and branch
The support substrate layer method being laminated, method for being coextruded fluid sealant with bonding agent and supporting base material layer etc..As layer
The method of pressure, it can be mentioned, for example：(1) the extrusion lamination of silane coupling agent and melting extrusion adhesive layer is coated on supporting base material layer
Method；(2) it is coated on supporting base material layer after silane coupling agent and melting extrusion interlayer, melting extrusion fluid sealant is used on it
The extrusion laminating method of adhesive layer；(3) centre excellent in adhesion of melting extrusion and supporting base material on supporting base material layer
After layer, the extrusion laminating method of melting extrusion fluid sealant adhesive layer on it；(4) it is coated with primary coat on supporting base material layer
Agent and by the co-extrusion laminating method of interlayer and adhesive layer melting extrusion simultaneously；(5) beforehand through blow-moulding process, pour
It casts forming process and forms the film including at least 1 layer of fluid sealant bonding agent, and it is made to be pasted with being coated with the supporting base material layer of silane coupling agent
The dry lamination method of conjunction；(6) it is coated with the supporting base material of silane coupling agent by using laminating machine melting extrusion interlayer is squeezed out
The extrusion laminating method of film lamination of layer with including at least 1 layer of fluid sealant bonding agent etc..On the other hand, the side as coextrusion
Method can enumerate coextrusion blow moulding, coextrusion T-shaped mould method etc..
The effect of invention
The cover materials fluid sealant bonding agent of the container of the present invention is available for shaping processability is excellent, can obtain high sealing
Intensity and adhesive strength, excellent heat resistance A-PET containers cover materials, it is useful as cover materials film.
Embodiment
Hereinafter, more specific detail is carried out to the present invention in conjunction with the embodiments, but the present invention is not limited to these implementations
Example.
~melt flow rate (MFR) (MFR)~
Vinyl-vinyl acetate copolymer (A), vinyl-vinyl acetate copolymer are determined based on JIS K6924-1
(B) MFR.
As embodiment, the fluid sealant for obtained by carries out shaping processability with bonding agent, using method as shown below
Evaluation.
~forming stability~
Use extrusion laminating machine (Placo Co. Ltd. system screw diameters), by this bonding agent pellet in processing temperature
Extrusion lamination is carried out at 230 DEG C of degree, acquires the film of 25 μm of fluid sealant adhesive layer thickness.For deciding that, lamination is added
The situation (△ and zero) for the deviation that film thickness after work is not present 3 μm or more to be considered as well.
○：There is no fused film pulsation and rock from side to side, thickness deviation be less than 3 μm；
△：Pulsation there are fused film rocks from side to side, but thickness deviation is less than 3 μm；
×：Pulsation there are fused film rocks from side to side, and thickness deviation is 5 μm or more.
~anti-sticking roller~
Use extrusion laminating machine (Placo Co. Ltd. system screw diameters), by this bonding agent pellet in processing temperature
Extrusion lamination is carried out in a manner of fluid sealant to be made to reach 25 μm with adhesive layer thickness at 230 DEG C of degree, pair with cooling down with not polishing
The roll release of roller (mat roll) is evaluated.For deciding that, film surface is not present to stripping trace when being removed with roller
Situation (zero) is considered as well.
○：Without stripping trace；
×：There is stripping trace.
By embodiment, sealing intensity, bonding are determined using method as shown below for gained cover materials with film
Intensity.
The measure of~sealing intensity~
The adhesive side of film and A-PET glasss (capacity 215ml) are overlapped, use cup type sealer (Sunny Cup companies
System, model UF-500 types) it is hot bonding under conditions of 160 DEG C, 40Kgf/ glasss, 1 second.After natural cooling, use is close
Testing sealing machine (Sun Chemical company systems, model FKT-100J) determines brokenly under conditions of air injection rate 0.8L/ divides
Resistance to spalling.For deciding that, more than 25kPa is considered as well.
○：More than 25kPa；
×：Less than 25kPa
The measure of~adhesive strength~
The adhesive side of film and A-PET pieces (Polytec company systems) are overlapped, use heat-sealing testing machine (Tester
Sangyo company systems, TP-701 types) 160 DEG C, 0.2MPa, be hot bonding under conditions of 1 second.After natural cooling,
Sealing intensity is determined under conditions of peel angle 180 degree, 300mm/ points of peeling rate.For deciding that, by 10N/15mm width
More than degree it is considered as good.
○：More than 10N/15mm；
×：Less than 10N/15mm
Embodiment 1
To be as the vinyl acetate content 6% of vinyl-vinyl acetate copolymer (A) and melt mass flow rate
Resin (A1) (Tosoh (strain) trade name Ultracene 537 processed) 40 parts by weight of 8.5g/10 point, as ethane-acetic acid ethyenyl
The vinyl acetate content 15% and melt mass flow rate of ester copolymer (B) are 3.0g/10 points resin (B1) (Tosoh
(strain) trade name Ultracene 626 processed) 40 parts by weight, as tackifier resins (C) part hydrogenated petroleum resin (C1) it is (waste
River Chemical Co., Ltd. trade name Alcon M115；115 DEG C of softening temperature, hydrogenation ratio about 60% (NMR methods)) 20 parts by weight profit
After carrying out blending in advance with rotary drum mixer, melting mixing is carried out using double screw extruder, in 180 DEG C, has obtained fluid sealant
With the pellet of bonding agent.The vinyl acetate content and ethylene-vinyl acetate c of vinyl-vinyl acetate copolymer (A1)
The difference of the vinyl acetate content of object (B1) is 9 weight %.It should be noted that in fluid sealant bonding agent, consider that heat is steady
It is qualitative and be with the addition of phenol antioxidant (BASF Co. Ltd. systems, trade name with 100 parts by weight of bonding agent compared with fluid sealant
Irganox 1010) 0.05 parts by weight, and it is with the addition of slip agents (Lion Akzo Co. Ltd. systems, product name Armowax E)
0.2 parts by weight.
Gained fluid sealant is 15g/10 points with the MFR of bonding agent.
Thereafter, lamination is squeezed out as intermediate in the biaxial stretching polyester film (12 μ m thick) as supporting base material layer in advance
The multilayer film that forms of low density polyethylene (LDPE) (25 μ m thicks, TOSOH Co., Ltd trade name Petrocene 203) of layer it is low
Density polyethylene surface uses extrusion laminating machine (Placo Co. Ltd. system screw diameters), by this bonding agent pellet
Extrusion lamination is carried out at 230 DEG C of processing temperature, has obtained cover materials film of the fluid sealant with 25 μm of adhesive layer thickness.
The evaluation result of gained fluid sealant bonding agent and cover materials film is as shown in table 3.
Embodiment 2
Vinyl-vinyl acetate copolymer has been used instead of 40 parts by weight of vinyl-vinyl acetate copolymer (A1)
(A1) 35 parts by weight have used ethylene-vinyl acetate c instead of 40 parts by weight of vinyl-vinyl acetate copolymer (B1)
35 parts by weight of object (B1) as tackifier resins (C), have used completely instead of 20 parts by weight of part hydrogenated petroleum resin (C1)
Hydrogenated petroleum resin (C2) (waste river Chemical Co., Ltd. trade name Alcon P125；125 DEG C of softening temperature, hydrogenation ratio are about
95% (NMR methods)) 30 parts by weight, it is 860kg/m that density has been used as ethene-alpha-olefin copolymer (D)3Ethylene-α-
Olefin copolymer (D1) (Mitsui Chemicals, Inc's system, trade name TAFMER P-0375) 40 parts by weight, in addition, with reality
It applies example 1 and has similarly obtained fluid sealant with bonding agent and cover materials film.The acetic acid of vinyl-vinyl acetate copolymer (A1)
The difference of the vinyl acetate content of ethylene ester content and vinyl-vinyl acetate copolymer (B1) is 9 weight %.
Bonding agent composition is as shown in table 1.Gained fluid sealant is 9g/10 points with the MFR of bonding agent.
The evaluation result of gained fluid sealant bonding agent and cover materials film is as shown in table 3.
Embodiment 3
10 parts of vinyl acetate content, melt have been used instead of 35 parts by weight of vinyl-vinyl acetate copolymer (B1)
Mass flow rate is 9.0g/10 points of vinyl-vinyl acetate copolymer (B2) (Tosoh (strain) trade name Ultracene processed
541) as tackifier resins (C), part hydrogen has been used instead of 30 parts by weight of completely hydrogenated Petropols (C2) for 35 parts by weight
30 parts by weight of fossil oleoresin (C1), it is 885kg/ that density has been used instead of 40 parts by weight of ethene-alpha-olefin copolymer (D1)
m3Ethene-alpha-olefin copolymer (D2) (TOSOH Co., Ltd's system, trade name LUMITAC BF300R) 40 parts by weight, except this with
Outside, fluid sealant has been obtained similarly to Example 2 with bonding agent and cover materials film.Vinyl-vinyl acetate copolymer
(A1) vinyl acetate content and the difference of the vinyl acetate content of vinyl-vinyl acetate copolymer (B1) is 4 weight %.
Bonding agent composition is as shown in table 1.Gained fluid sealant is 13g/10 points with the MFR of bonding agent.
The evaluation result of gained cover materials film is as shown in table 3.
Embodiment 4
Vinyl-vinyl acetate copolymer has been used instead of 35 parts by weight of vinyl-vinyl acetate copolymer (A1)
(A1) 40 parts by weight have used ethylene-vinyl acetate c instead of 35 parts by weight of vinyl-vinyl acetate copolymer (B2)
As tackifier resins (C), part has been used instead of 30 parts by weight of part hydrogenated petroleum resin (C1) for 40 parts by weight of object (B2)
Hydrogenated petroleum resin (C3) (waste river Chemical Co., Ltd. trade name Alcon M135；135 DEG C of softening temperature, hydrogenation ratio are about
60% (NMR methods)) 20 parts by weight, use ethene-alpha-olefin copolymerization instead of 40 parts by weight of ethene-alpha-olefin copolymer (D2)
20 parts by weight of object (D2) in addition, have obtained fluid sealant with bonding agent and cover materials film similarly to Example 3.Second
The vinyl acetate content of alkene-vinyl acetate copolymer (A1) and the vinyl acetate of vinyl-vinyl acetate copolymer (B1)
The difference of ester content is 4 weight %.
Bonding agent composition is as shown in table 1.Gained fluid sealant is 10g/10 points with the MFR of bonding agent.
The evaluation result of gained fluid sealant bonding agent and cover materials film is as shown in table 3.
Embodiment 5
As tackifier resins (C), hydrogenation stone in part has been used instead of 20 parts by weight of part hydrogenated petroleum resin (C3)
20 parts by weight of oleoresin (C1) have used ethene-alpha-olefin copolymer instead of 20 parts by weight of ethene-alpha-olefin copolymer (D2)
(D2) 0 parts by weight, as the thermoplastic block copolymers of vinyl aromatic hydrocarbon and alkadienes (E), used 200 DEG C,
Melt flow rate (MFR) under 5.0kg loads is 65g/10 points, hydrogenated styrene-butadiene-diblock copolymer and hydrogenation of benzene second
The vinyl aromatic that the mixing ratio of alkene-butadiene-styrene-triblock copolymer is 7/3 and styrene-content is 30 weight %
5 parts by weight of the thermoplastic block copolymers of race's hydrocarbon and alkadienes (E1) (KratonG1726MS), it is in addition, same with embodiment 4
Fluid sealant has been obtained with bonding agent and cover materials film sample.The vinyl acetate of vinyl-vinyl acetate copolymer (A1)
The difference of content and the vinyl acetate content of vinyl-vinyl acetate copolymer (B1) is 4 weight %.
Bonding agent composition is as shown in table 1.Gained fluid sealant is 24g/10 points with the MFR of bonding agent.
The evaluation result of gained fluid sealant bonding agent and cover materials film is as shown in table 3.
Embodiment 6
Vinyl-vinyl acetate copolymer has been used instead of 40 parts by weight of vinyl-vinyl acetate copolymer (A1)
(A1) 35 parts by weight have used ethylene-vinyl acetate c instead of 40 parts by weight of vinyl-vinyl acetate copolymer (B2)
35 parts by weight of object (B2) have used part hydrogenated petroleum resin (C1) 30 instead of 20 parts by weight of part hydrogenated petroleum resin (C1)
Parts by weight have used 40 parts by weight of ethene-alpha-olefin copolymer (D2) instead of 0 parts by weight of ethene-alpha-olefin copolymer (D2),
Vinyl aromatic hydrocarbon has been used instead of the thermoplastic block copolymers of vinyl aromatic hydrocarbon and alkadienes (E1) 5 parts by weight
With 2 parts by weight of thermoplastic block copolymers (E1) of alkadienes, in addition, fluid sealant use has been obtained similarly to Example 5
Bonding agent and cover materials film.The vinyl acetate content and ethane-acetic acid ethyenyl of vinyl-vinyl acetate copolymer (A1)
The difference of the vinyl acetate content of ester copolymer (B1) is 4 weight %.
Bonding agent composition is as shown in table 1.Gained fluid sealant is 13g/10 points with the MFR of bonding agent.
The evaluation result of gained fluid sealant bonding agent and cover materials film is as shown in table 3.
Comparative example 1
Vinyl-vinyl acetate copolymer has been used instead of 40 parts by weight of vinyl-vinyl acetate copolymer (A1)
(A1) 80 parts by weight have used ethylene-vinyl acetate c instead of 40 parts by weight of vinyl-vinyl acetate copolymer (B1)
0 parts by weight of object (B1) in addition, have obtained fluid sealant with bonding agent and cover materials film similarly to Example 1.
Bonding agent composition is as shown in table 2.Gained fluid sealant is 23g/10 points with the MFR of bonding agent.
The evaluation result of gained fluid sealant bonding agent and cover materials film is as shown in table 4.
Gained cover materials are adhesive strength and the undesirable film of sealing intensity with film.
Comparative example 2
Vinyl acetate content 28%, melt have been used instead of 35 parts by weight of vinyl-vinyl acetate copolymer (B1)
Mass flow rate is 5.7g/10 points of vinyl-vinyl acetate copolymer (B2) (Tosoh (strain) trade name Ultracene processed
751) 35 parts by weight in addition, have obtained fluid sealant with bonding agent and cover materials film similarly to Example 2.Ethylene-
The vinyl acetate content of vinyl acetate copolymer (A1) and the vinyl acetate of vinyl-vinyl acetate copolymer (B1) contain
The difference of amount is 22 weight %.
Bonding agent composition is as shown in table 1.Gained fluid sealant is 23g/10 points with the MFR of bonding agent.
The evaluation result of gained fluid sealant bonding agent and cover materials film is as shown in table 4.
The forming stability of gained bonding agent is poor, anti-sticking roller is also bad, therefore fails to obtain cover materials film.
Comparative example 3
Vinyl-vinyl acetate copolymer has been used instead of 40 parts by weight of vinyl-vinyl acetate copolymer (A1)
(A1) 20 parts by weight have used ethylene-vinyl acetate c instead of 40 parts by weight of vinyl-vinyl acetate copolymer (B1)
20 parts by weight of object (B2) have used part hydrogenated petroleum resin (C1) 60 instead of 20 parts by weight of part hydrogenated petroleum resin (C1)
Parts by weight in addition, have obtained fluid sealant with bonding agent and cover materials film similarly to Example 1.Ethylene-acetate second
The difference of the vinyl acetate content of enoate copolymer (A1) and the vinyl acetate content of vinyl-vinyl acetate copolymer (B1)
For 4 weight %.
Bonding agent composition is as shown in table 1.Gained fluid sealant is 70g/10 points with the MFR of bonding agent.
The evaluation result of gained cover materials film is as shown in table 2.
The anti-sticking roller of gained bonding agent is poor, and the sealing intensity of cover materials film is bad.
[table 1]
[table 2]
[table 3]
[table 4]
Claims (8)
1. the cover materials fluid sealant bonding agent of container, it includes：The ethylene that vinyl acetate content is 3~15 weight %-
10~50 parts by weight of vinyl acetate copolymer (A), the ethane-acetic acid ethyenyl ester that vinyl acetate content is 8~25 weight %
5~40 parts by weight of 10~50 parts by weight of copolymer (B) and tackifier resins (C), and the total amount of (A), (B) and (C) are 100 weights
Measure part,
The vinyl acetate content of vinyl-vinyl acetate copolymer (A) and the acetic acid of vinyl-vinyl acetate copolymer (B)
The difference of ethylene ester content is 3~20 weight %, the vinyl acetate content of vinyl-vinyl acetate copolymer (A) be less than ethylene-
The vinyl acetate content of vinyl acetate copolymer (B).
2. the cover materials fluid sealant bonding agent of container according to claim 1, wherein, compared with the cover material of container
Expect fluid sealant 100 parts by weight of bonding agent, be combined with based on (1998) density measured of JISK6922-1 in 860~910kg/
m310~50 parts by weight of ethene-alpha-olefin copolymer (D) of scope.
3. the cover materials fluid sealant bonding agent of container according to claim 1 or 2, wherein, ethene-alpha-olefin copolymerization
Object (D) meets following condition (a)~(c)：
(a) the ratio between weight average molecular weight (Mw) and number-average molecular weight (Mn) (Mw/Mn) are less than 3；
(b) temperature (Tm of the maximum peak position of the endothermic curve obtained in being measured using the heating of differential scanning calorimeter
(DEG C)) with the every 1000 corresponding short chain branches number (SCB) of carbon number being obtained by the measure of infrared absorption spectrum meet formula
(1) relation：
Tm ＜ -1.8 × SCB+140 (1)；
(c) carbon number of alpha-olefin is more than 3 and less than 12.
4. the cover materials fluid sealant bonding agent of container described in any one of claim 1 to 3, wherein, compared with
The cover materials fluid sealant of container 100 parts by weight of bonding agent are combined with vinyl aromatic hydrocarbon and the heat of alkene or alkadienes
0.5~5 parts by weight of plasticity block copolymer (E).
5. the cover materials fluid sealant bonding agent of container according to any one of claims 1 to 4, wherein, vinyl
The thermoplastic block copolymers (E) of aromatic hydrocarbon and alkene or alkadienes be hydrogenated styrene-butadiene-diblock copolymer and
The mixture of hydrogenated styrene-butadiene-styrene-triblock copolymer, mixing ratio is 5/5~9/1, and styrene-content
For 20~50 weight %.
6. according to the cover materials fluid sealant bonding agent of container according to any one of claims 1 to 5, wherein, tackifier
Resin (C) is will be selected from aliphatic category Petropols, fragrant same clan Petropols, alicyclic type hydrogenation Petropols and Copolymer
At least one of Petropols carry out the resin that the hydrogenation of 50~90% parts forms.
7. according to the cover materials fluid sealant bonding agent of container according to any one of claims 1 to 6, wherein, container with
Polyethylene terephthalate is principal component.
8. the cover materials film of container includes at least following 2 layers：
The layer that formed by the cover materials fluid sealant of container according to any one of claims 1 to 7 with bonding agent and
Supporting base material layer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016217279A JP6841001B2 (en) | 2016-11-07 | 2016-11-07 | Sealant adhesive and lid film |
| JP2016-217279 | 2016-11-07 |
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| CN108070330A true CN108070330A (en) | 2018-05-25 |
| CN108070330B CN108070330B (en) | 2021-10-01 |
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| CN201711071513.1A Active CN108070330B (en) | 2016-11-07 | 2017-11-03 | Adhesive for sealant and film for lid material |
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|---|---|
| JP (1) | JP6841001B2 (en) |
| KR (1) | KR102333539B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113614168A (en) * | 2019-03-25 | 2021-11-05 | 东曹株式会社 | Resin composition and film for lid material |
| JP7567553B2 (en) | 2021-02-26 | 2024-10-16 | 大日本印刷株式会社 | container |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP7340597B2 (en) * | 2019-03-28 | 2023-09-07 | 三井・ダウポリケミカル株式会社 | Resin compositions for sealants, laminates, packaging materials and packaging containers |
| JP7240067B2 (en) * | 2019-06-27 | 2023-03-15 | 東洋インキＳｃホールディングス株式会社 | Adhesive resin composition, sheet, lid material, member set for sealed container and container |
| JP6791420B1 (en) * | 2020-04-15 | 2020-11-25 | 東洋インキＳｃホールディングス株式会社 | Adhesive resin composition, sheet, lid material, member set and container using the composition |
| KR20230156411A (en) | 2021-03-18 | 2023-11-14 | 미츠이·다우 폴리케미칼 가부시키가이샤 | Heat sealable resin composition, heat seal material, packaging material, cover material and packaging container |
| JPWO2022196297A1 (en) | 2021-03-18 | 2022-09-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113614168A (en) * | 2019-03-25 | 2021-11-05 | 东曹株式会社 | Resin composition and film for lid material |
| JP7567553B2 (en) | 2021-02-26 | 2024-10-16 | 大日本印刷株式会社 | container |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6841001B2 (en) | 2021-03-10 |
| CN108070330B (en) | 2021-10-01 |
| JP2018076398A (en) | 2018-05-17 |
| TWI751221B (en) | 2022-01-01 |
| KR102333539B1 (en) | 2021-11-30 |
| KR20180051389A (en) | 2018-05-16 |
| TW201831633A (en) | 2018-09-01 |
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