CN106189039B - block copolymer composition - Google Patents

block copolymer composition Download PDF

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CN106189039B
CN106189039B CN201510318697.1A CN201510318697A CN106189039B CN 106189039 B CN106189039 B CN 106189039B CN 201510318697 A CN201510318697 A CN 201510318697A CN 106189039 B CN106189039 B CN 106189039B
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block copolymer
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acid
compound
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CN106189039A (en
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谢官霖
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Chi Mei Corp
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Chi Mei Corp
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Abstract

The invention provides a block copolymer composition, which comprises a block copolymer (A) and a compound (B). The block copolymer (A) comprises at least oneA vinyl aromatic polymer block and at least one conjugated diene polymer block. The compound (B) is at least one selected from the group consisting of a phosphate represented by formula (1) and a derivative thereof, a phosphite represented by formula (2) and a derivative thereof, a fatty acid having a C6-C9 alkyl group with a terminal C4, a derivative thereof, and a combination thereof,in the formulae (1) and (2), R1、R2、R3And R4Each independently is an alkyl group having 4 to 10 carbon atoms or a phenyl group. Thereby maintaining the transparency of the block copolymer composition and not generating fuming and odor during extrusion.

Description

Block copolymer constituent
Technical field
The present invention relates to a kind of block copolymer constituent more particularly to a kind of it can maintain transparency and will not when extrusion Generate the block copolymer constituent of smoke phenomenon and stink.
Background technique
Conjugated diene/vinyl aromatic block copolymer resin is a kind of thermoplasticity polymer being widely used Resin.Since conjugated diene/vinyl aromatic block copolymer resin transparency and impact resistant strength are good, so often quilt It is formed for beverage container, clothes hanger, toy and other items.This kind of copolymer resin has many patents and refers to, such as TaiWan, China 574231 patent of patent announcement number or TaiWan, China patent announcement I300069 patent.
In the preparation process of above-mentioned block copolymer resin, usually by vinyl aromatic monomers, conjugated diene The raw materials such as monomer, initiator and solvent, which are sequentially added in reactive tank, to react.Then, after polymerization reaction whole, then The active terminator for terminating polymer chain is added.However, existing terminating agent for anionic polymerization (VAC) does not meet European Union EU NO 10/2011 (food contact container method), therefore need to seek other compounds, European Union EU NO 10/2011 can be met, needed simultaneously Smoke phenomenon and stink will not be generated when extrusion.
Summary of the invention
The present invention provides a kind of block copolymer constituent, can maintain the transparency of block copolymer constituent, and in signature Smoke phenomenon and stink will not be generated when out.
A kind of block copolymer constituent of the invention, including block copolymer (A) and compound (B).The block Copolymer (A) include an at least vinyl aromatic polymers block and an at least conjugated diene polymer block, and on State compound (B) be at least one selected from include phosphite ester shown in phosphate and its derivative, formula (2) shown in formula (1) and Its derivative, with carbon number 6 to 9 and end is the fatty acid and its derivative of the alkyl of 4 grades of carbon, or combinations thereof,
In formula (1) and formula (2), R1、R2、R3With R4Respectively stand alone as the alkyl or phenyl of carbon number 4 to 10.
In one embodiment of this invention, in above-mentioned constituent with block copolymer constituent be 100 parts by weight, above-mentionedization The content range of object (B) is closed between 10ppm~3000ppm.
In one embodiment of this invention, in above-mentioned constituent with block copolymer constituent be 100 parts by weight, above-mentionedization The content range of object (B) is closed between 10ppm~2500ppm.
In one embodiment of this invention, above-mentioned R1With R2It is identical.
In one embodiment of this invention, above-mentioned R3With R4It is identical.
In one embodiment of this invention, phosphate shown in above-mentioned formula (1) is dioctylphosphoric acid ester.
In one embodiment of this invention, phosphite ester shown in above-mentioned formula (2) is diphenyl phosphite.
In one embodiment of this invention, above-mentioned with carbon number 6 to 9 and end be the fatty acid of the alkyl of 4 grades of carbon is tool There is carbon number 6 to 9 and end is the fatty acid of the alkyl of 4 grades of carbon, main chain with 3 grades of carbon structures.
In one embodiment of this invention, above-mentioned with carbon number 6 to 9 and end is that 4 grades of carbon, main chain have 3 grades of carbon structures Alkyl fatty acid be 3,5,5 Trimethylhexanoic acid.
In one embodiment of this invention, above-mentioned block copolymer (A) contains 25 weight of vinyl aromatic monomers unit Measure % to 80 weight % and 20 weight % of conjugated diene monomeric unit to 75 weight %.
In one embodiment of this invention, the weight average molecular weight of above-mentioned block copolymer (A) is 110,000 to 170,000.
Include the compound (B) of specific structure based on above-mentioned, in block copolymer constituent provided by the invention, uses this Kind compound (B) can maintain the transparency of block copolymer constituent in the molding of production block copolymer constituent, and And smoke phenomenon and stink will not be generated in extrusion.
To make the foregoing features and advantages of the present invention clearer and more comprehensible, special embodiment below is described in detail below.
Specific embodiment
Hereinafter, will be described in the embodiment of the present invention.However, these embodiments are illustrative, and the present invention discloses not It is limited to this.
In one embodiment of this invention, block copolymer constituent includes block copolymer (A) and compound (B). The block copolymer (A) and the compound (B) will be described below.
Block copolymer (A)
Block copolymer (A) of the invention includes an at least vinyl aromatic polymers block and at least one conjugation two Alkene based polymer block.The block copolymer (A) preferably contains vinyl aromatic monomers unit 25 weight % to 80 weights % and 20 weight % of conjugated diene monomeric unit to 75 weight % is measured, vinyl aromatic monomers unit 27 is more preferably contained Weight % to 78 weight % and 22 weight % of conjugated diene monomeric unit most preferably contain vinyl aromatic to 73 weight % 30 weight % of race's monomeric unit to 75 weight % and 25 weight % of conjugated diene monomeric unit to 70 weight %.Above-mentioned ethylene Base aromatic monomer unit and conjugated diene monomeric unit refer to the vinyl aromatic list having polymerize in block copolymer (A) The structural unit of body and conjugation diene monomer.When vinyl aromatic monomers unit content 25 weight % to 80 weight % with And conjugated diene monomer unit content within the scope of 20 weight % to 75 weight % when, the resistance to punching of low temperature of block copolymer (A) The physical property such as hit intensity, transparency and folding resistance balance is good.
The molecular structure of block copolymer (A) of the invention is preferably linear molecular structure, this is to block copolymer (A) Mobility and the physical property balance such as folding resistance on have good effect.
The molecular structure of block copolymer (A) of the invention for example contains the molecular structure of (branch) of disagreeing, will be advantageous In the melt strength and extrusion appearance of block copolymer (A).In addition, block copolymer (A) of the invention, is preferably free of ethylene Alternation block (Tapered block) person of base aromatic monomer and conjugation diene monomer, so that softening point and low temperature are resistance to The physical property such as impact strength balance.
Above-mentioned vinyl aromatic monomers it is specific for example: styrene (styrene, abbreviation SM), ortho-methyl styrene (o-methyl styrene), p-methylstyrene (p-methyl styrene), p- t-butyl styrene (p-tert- Butyl styrene), 1,3- dibutyl styrene (1,3-di-butyl styrene), α-methylstyrene (α-methyl Styrene), ethyl styrene, 2,4-DMS, Alpha-Methyl-p-methylstyrene, bromo- styrene, wherein and with Styrene is preferable.Above-mentioned vinyl aromatic monomers can be used alone a kind of or several uses of mixing.
Above-mentioned conjugated diene monomer it is specific for example: 1,3-butadiene (1,3-butadiene, abbreviation BD), 2- methyl- 1,3-butadiene, 2,3- be bis--methyl-1,3- butadiene, 1,3-pentadiene, 1,3- hexadiene etc., wherein again with 1,3-butadiene Or 2- methyl-1,3- butadiene are preferable.Above-mentioned conjugated diene monomer can be used alone a kind of or several uses of mixing.
The weight average molecular weight of block copolymer (A) of the present invention be preferably 110,000 to 170,000, more preferably 11.5 ten thousand to 16.5 ten thousand, most preferably 120,000 to 16.1 ten thousand.
Compound (B)
The compound of the present invention (B) is at least one selected from including phosphate and its derivative, following formula shown in following formula (1) (2) phosphite ester and its derivative shown in, with carbon number 6 to 9 and end is the fatty acid and its derivative of the alkyl of 4 grades of carbon Object, or combinations thereof.
Formula (1) is as follows:
In formula (1), R1With R2Respectively stand alone as the alkyl or phenyl of carbon number 4 to 10.
Above-mentioned R1With R2It is independent it is specific for example: butyl, amyl, hexyl, heptyl, octyl, nonyl, decyl or phenyl; Preferably octyl.
R in formula (1)1And R2It can be identical or different;Preferably R1And R2It is identical.
The concrete example of formula (1) for example dioctylphosphoric acid ester (Dioctyl phosphate) represented by following structural formula
Formula (2) is as follows:
In formula (2), R3With R4Respectively stand alone as the alkyl or phenyl of carbon number 4 to 10.
Above-mentioned R3With R4It is independent it is specific for example: butyl, amyl, hexyl, heptyl, octyl, nonyl, decyl or phenyl. Preferably phenyl.
R in formula (2)3With R4It can be identical or different;Preferably R3With R4It is identical.
The concrete example of formula (2) for example diphenyl phosphite (Diphenyl phosphonate) represented by following structural formula
It is above-mentioned with carbon number 6 to 9 and end be the concrete example of the fatty acid of the alkyl of 4 grades of carbon for example: 2,3,3- trimethyl Butyric acid (2,3,3-trimethylbutanoic acid), 3,4,4- trimethyl valeric acid (3,4,4-trimethylpentanoic Acid), 2,4,4- trimethyl valeric acid (2,4,4-trimethylpentanoic acid), 2- ethyl -2,3,3- trimethyl butyric acid (2-ethyl-2,3,3-trimethylbutanoic acid), 3,5,5 Trimethylhexanoic acid (3,5,5- Trimethylhexanoic acid), 2,2,4,4- tetramethyl valeric acid (2,2,4,4-tetramethylpentanoic Acid), 4,4- dimethyl valeric acid (4,4-dimethylpentanoic acid), 5,5- dimethylhexanoic acid (5,5- Dimethylhexanoic acid), 6,6- dimethyl enanthic acid (6,6-dimethylheptanoic acid) etc..Wherein again with With carbon number 6 to 9 and end is that have the fatty acid of alkyl of 3 grades of carbon structures be preferable for 4 grades of carbon, main chain.
In one embodiment, above-mentioned with carbon number 6 to 9 and end is that 4 grades of carbon, main chain have the alkyl of 3 grades of carbon structures Fatty acid, for example 3,5,5- tri-methyl hexanoic acids (3,5,5-trimethylhexanoic acid) represented by following structural formula
Derivative in above compound (B) refers to phosphite ester or tool shown in phosphate shown in formula (1), formula (2) After thering is carbon number 6 to 9 and end to be replaced for the hydrogen ion in the fatty acid of the alkyl of 4 grades of carbon by alkali metal ion, it is formed by salt Class.The concrete example of derivative for example, above-mentioned 3, after the hydrogen ion in 5,5- tri-methyl hexanoic acids is replaced by lithium ion, be formed by 3, 5,5- tri-methyl hexanoic acid lithium.
Above compound (B) can be used alone a kind of or several uses of mixing.
In block copolymer constituent of the invention, with above-mentioned block copolymer constituent for 100 parts by weight, compound (B) content range is preferably between 10ppm~3000ppm;Between more preferably 10ppm~2500ppm;Most preferably 15ppm~ Between 2200ppm.When the content of above compound (B) is within the scope of 10ppm~3000ppm, there is preferable polymerization Effect, the excellent transparency of obtained block copolymer constituent, and smoke phenomenon and stink will not be generated in extrusion.
The preparation of block copolymer constituent
The preparation method of block copolymer constituent of the invention includes first carrying out the polymerization reaction of block copolymer (A), Then it adds the compound of the present invention (B), after removing solvent seasoning, can be prepared by block copolymer composition of the invention Object.More specifically, the polymerization reaction of block copolymer (A) is dissolved in solvent by monomer in block copolymer constituent of the invention Middle carry out polymerization reaction, then adds the compound of the present invention (B), forms polymer cement, above-mentioned glue in solvent later The modes such as slurry usually contains the solid content of 10 weight of weight %~35 %, and aforementioned rubber cement can be depressurized or be heated are further concentrated in advance The solid content of 50 weight of weight %~99 %, then with vacuum drying oven, remove volatilization extruder, or import remaining molten to remove in hot water Agent can be prepared by block copolymer constituent of the invention.
It is by vinyl aromatic monomers, conjugated diene monomer, initiator and solvent etc. when carrying out polymerization reaction Raw material is sequentially added in reactive tank and reacts.In each stage monomer fully reacting and then the reaction monomers of progress next stage Pan feeding.It whether fully reacting, can judge according to reaction temperature, represent fully reacting when reaction temperature stops and rising.Poly- The polymerization temperature in reaction is closed for example between -40 DEG C~150 DEG C, preferably 40~120 DEG C;Polymerization time and polymerization pressure are then It is different and different with polymerizing condition, wherein polymerization time is usually preferably 0.1~10 hour in 20 hours, more preferably 0.5~5 hour.In addition, being mixed into for impurity need to be prevented in polymerization, and such as: water, acids, carbon dioxide etc..
After polymerization reaction whole, the compound (B) in block copolymer constituent of the present invention is added.
Initiator (C)
In block copolymer constituent of the invention, block copolymer (A) is when carrying out polymerization reaction, used initiation Agent (C) can for example enumerate organic alkali metal compound, and general formula can be indicated with RM, wherein R represent carbon number 1 to 20 alkyl, Naphthenic base, aryl, preferably alkyl;And M represents alkali metal, such as lithium, sodium, preferably lithium.The dosage of above-mentioned initiator (C) according to The molecular weight of required each block or block copolymer (A) determines, typically with respect to the 0.01~1.0 of 100 weight parts monomers Parts by weight.
In aforementioned organic alkali metal compound, organo-lithium compound it is specific for example: n-propyl lithium, n-BuLi are (referred to as N-BuLi), s-butyl lithium, tert-butyl lithium, n-pentyl lithium, hexyllithium, benzyl lithium (benzyl lithium), phenyl lithium, The double lithiums of tolyl lithium (tolyl lithium), two lithium of trimethylene, two lithium of tetramethylene, butadiene and the double lithiums of isoprene etc., It is wherein preferable with n-BuLi.A kind of or several uses of mixing in addition, above-mentioned initiator (C) can be used alone.
Solvent (D)
In block copolymer constituent of the invention, block copolymer (A) is when carrying out polymerization reaction, used solvent (D) such as can enumerate: pentane, hexane, octane, hexamethylene, wherein being preferable with hexamethylene.Above-mentioned solvent (D) can individually make With a kind of or several uses of mixing.
Polar compound (E)
Rate of polymerization in polymerization of block copolymer (A) in block copolymer constituent of the invention, 1,2- ethylene Base content can be adjusted by polar compound (E).The polar compound (E) can for example enumerate: ethers, amine (amine), The potassium or sodium salt of thioether class, phosphine (phosphine) or phosphono amine, trialkylphosphine oxide.Be suitable for it is of the invention it is specific for example:
(a) ethers: dimethyl ether, Anaesthetie Ether, dibutyl ethers, diphenyl ether, tetrahydrofuran (tetrahydrofuran, Abbreviation THF), oxinane, diethylene glycol dimethyl ether (diethylglycol dimethyl ester), ethylene glycol dibutyl Ether, diethylene glycol diethyl ether, dibutyl ethylene glycol ether, diphenyl ether etc..
(b) amine: tertiary amine, Trimethylamine, triethylamine, tripropylamine, tri-butylamine, four-methyl-ethylidine are double Amine, diethylaniline, pyridine, ring tertiary amine etc..
(c) phosphine or phosphono amine: three-Phenylphosphines, hexylmethylphosphoramide etc..
(d) potassium or sodium salt of trialkylphosphine oxide: fourth oxygen potassium (potassium butoxide).
It is preferable with tetrahydrofuran in above several concrete examples.One kind or mixed in addition, polar compound (E) can be used alone Close several uses.
Vinyl aromatic monomers and conjugated diene of the additive amount of above-mentioned polar compound (E) relative to 100 parts by weight It is the total amount of monomer, preferably 0.005~10 parts by weight, more preferably 0.03~1 parts by weight, most preferably 0.06~0.6 parts by weight.
Additive (F)
Block copolymer constituent of the invention can be added additive appropriate (F), such as: antioxidant, chelating agent, cunning Agent, antistatic agent, weather resisting agent etc..
Wherein, such as phenolic antioxidant, thioether antioxidant or phosphorous antioxidant can be used in antioxidant.
The additive amount of phenolic antioxidant with 0.005~2.0 parts by weight (relative to 100 parts by weight of block copolymer) be compared with It is good, phenolic antioxidant it is specific for example: octadecyl (3,5- dual-tert-butyl -4- hydroxyphenyl)-propionic ester, triethylene glycol are double [3- (3- tert-butyl -5- methyl -4- hydroxyphenyl) propionic ester], four [methylene base -3- (3,5- dual-tert-butyl -4- hydroxyphenyl) propionic acid Ester] methane, 2- tert-butyl -6- (3- tert-butyl -2- hydroxyl -6- methylbenzyl) -4- aminomethyl phenyl acrylate, 2,2'- first Support group-bis- (4- methyl-6-tert butyl phenol), 2,2'- sulphur bis- (4- methyl-6-tert butyl phenol), 2,6- di-t-butyl -4- methyl Phenol, 2,2'- be thio-diethyl support group-bis- [3- (3,5- dual-tert-butyl -4- hydroxyphenyl) propionic esters], 2,2'- oxalamide-bis- [second Base -3- (3,5- bis--tert-butyl -4- hydroxyphenyl) propionic ester] etc., wherein with octadecyl (3,5- dual-tert-butyl -4- hydroxyphenyl) - Propionic ester is preferable.
The additive amount of thioether antioxidant is with 0.005~2.0 parts by weight (relative to 100 parts by weight of block copolymer) It is good, thioether antioxidant it is specific for example: distearyl thiodipropionic acid ester, two palmityl thiodipropionic acid esters, five erythrites- Four-(β-ten dimethyl-sulphur propionic ester), double octadecyl thioethers, bis- (n- the octyl group s-methyl) -6- sylvan [2,4- of 2,4- Bis (n-octyl thio methyl) -6-methyl phenol], bis- (bis--hydroxypropyl of 2', 3'- sulfidomethyl) -3,6- of 2,4- Dimethyl phenol (2,4-bis (2', 3'-di-hydroxy propylthio methyl) -3,6-di-methyl phenol), 2, Bis- (2'- Acetoxvethyl sulfidomethyl) two-sylvan of -3,6- (2,4-bis (the 2'-acetyloxy ethyl thio of 4- Methyl) -3,6-di-methyl phenol), bis- (the octyl group s-methyl)-o-cresols of 4,6- [4,6-bis (octyl thio Methyl) -0-cresol] etc., wherein bis- (the octyl group s-methyl)-o-cresols of 6- are preferable with 4.
Phosphorous antioxidant is phosphite ester system antioxidant or phosphate system antioxidant, additive amount with 0.015~ 2.0 parts by weight (relative to 100 parts by weight of block copolymer) be it is preferable, phosphorous antioxidant it is specific for example: three (nonyl benzenes Base) phosphite ester, dodecyl phosphite ester, cyclic annular neopentane tetralyl bis- (octadecyl phosphite esters), 4,4'- Aden Base bis- (3- methyl-6-tert butyl phenyl-double tridecyl phosphite ester), three (2,4- tert-butyl-phenyl) phosphite esters, four (2, 4- tert-butyl-phenyl) -4,4'- stretches biphenyl phosphate, 9,10- dihydro-9-oxy -10- phosphoric acid phenanthrene -10- oxygen supports etc..
The additive amount of chelating agent take 0.001~2.0 parts by weight (relative to 100 parts by weight of block copolymer) as preferable, tool Body is for example: dibenzoyl methane, sodium salt of ethylenediaminetetraacetic acid etc..
The additive amount of lubrication prescription is preferable, concrete example with 0.03~5.0 parts by weight (relative to 100 parts by weight of block copolymer) Such as: calcium stearate, magnesium stearate, the metallic soaps of lithium stearate, ethylene distearyl amide, methylene distearyl amide, palm The chemical combination of sour amide, butyl stearate, stearic acid palm ester, poly- propionic acid alcohol tristearate, behenic acid, stearic acid etc. Object, polyethylene wax, octocosoic acid wax, Brazil wax (Carnauba wax), pertroleum wax etc..
All experiment is exemplified below to verify effect of the invention, but the scope of the invention is not limited to following realities It tests.The present invention will be described in more detail for following instance.
Experimental example 1~11
The raw material used has:
1. vinyl aromatic monomers is styrene (abbreviation SM).
2. conjugated diene monomer is 1,3- butadiene (abbreviation BD).
3. initiator (C) is the n-BuLi (abbreviation n-BuLi) that concentration is 8 weight %.
4. polar compound (E) is tetrahydrofuran (abbreviation THF).
5. compound (B) has (1) dioctylphosphoric acid ester, (2) diphenyl phosphite, (3) 3,5,5 Trimethylhexanoic acid respectively.
6. solvent (D) uses thiacyclohexane.
Firstly, in the presence of nitrogen, polymerize in batch reactor, wherein reaction pressure about 1Kg/cm2~3Kg/cm2、 Reaction temperature is at 50 DEG C~120 DEG C, the reaction time about 60 minutes~150 minutes.Reactor volume is 160 liters, and solvent (D) uses Thiacyclohexane, and charge order and raw material weight are according to shown in table 1.Above after the reaction was completed, 1 compound represented of table (B) is added.
After the reaction was completed, solid of the rubber cement obtained containing about 25 weight %, rubber cement is passed through in hot water later remove it is molten Agent, recycling are obtained wet micelle again with extruder extrusion drying and dehydrating, are compared with the block copolymer constituent for being made of the invention Compared with.
Test method
1. assay:
Take 1 gram of block copolymer constituent with acetone solution after, be subsequently added into methanol, make the polymer poly of high molecular weight Collection sedimentation, takes upper liquid and with gas chromatograph (GC) (Hewlett Packard with flame ionization detector (FID) Company's manufacture;Model 6890, tubing string HP-5) carry out quantitative analysis.
2. terminating measure of merit:
After block copolymer constituent is granulated with extruder extrusion, acquirement particle progress is hot-forming, terminates incomplete person Test piece is easily turned to be yellow.As the result is shown in table 1.
Zero: test piece is without jaundice.
╳: test piece jaundice.
3. extrusion smokiness is tested:
Extrusion process observation its smokiness in aforementioned termination measure of merit.As the result is shown in table 1.
Zero: without smoke phenomenon.
╳: there is smoke phenomenon.
4. extrusion stink is tested:
Extrusion process observation its stink in aforementioned termination measure of merit.As the result is shown in table 1.
Zero: odorless.
╳: there is stink.
Comparative example 1~11
In addition to the compound being added after the reaction was completed is changed to (1) lauric acid (Lauric acid), (2) tributyl phosphate (tributyl phosphate), (3) 3- mercaptan propionic acid (3-mercapto propionic acid), (4) trimethyl hexanol (3,5,5-Trimethyl-1-hexanol), using raw material identical with experimental example 1~11, weight and charge order, see table 2。
Then termination effect, the extrusion hair of the block copolymer constituent of comparative example 1~11 are obtained with above-mentioned test method The test result of cigarette and extrusion stink is shown in table 2.
Table 1
1 (Continued) of table
Table 2
2 (Continued) of table
From the result of Tables 1 and 2 it is found that the termination effect of block copolymer constituent of the invention is good, thus test piece without Jaundice, can maintain the transparency of block copolymer constituent.Moreover, block copolymer constituent of the invention when extrusion not yet Smoke phenomenon and stink can be generated.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (7)

1. a kind of block copolymer constituent characterized by comprising
Block copolymer (A), including at least a vinyl aromatic polymers block and at least a conjugated diene polymer Block;And
Compound (B) is at least one selected from carbon number 6 to 9 and end is the fatty acid and its derivative of the alkyl of 4 grades of carbon.
2. block copolymer constituent according to claim 1, which is characterized in that be with the block copolymer constituent 100 parts by weight, the content range of the compound (B) is between 10ppm~3000ppm.
3. block copolymer constituent according to claim 1, which is characterized in that be with the block copolymer constituent 100 parts by weight, the content range of the compound (B) is between 10ppm~2500ppm.
4. block copolymer constituent according to claim 1, which is characterized in that described there is carbon number 6 to 9 and end to be The fatty acid of the alkyl of 4 grades of carbon is with carbon number 6 to 9 and end is the fat of the alkyl of 4 grades of carbon, main chain with 3 grades of carbon structures Acid.
5. block copolymer constituent according to claim 4, which is characterized in that described there is carbon number 6 to 9 and end to be It is 3,5,5 Trimethylhexanoic acid that 4 grades of carbon, main chain, which have the fatty acid of the alkyl of 3 grades of carbon structures,.
6. block copolymer constituent according to claim 1, which is characterized in that the block copolymer (A) contains second 25 weight % of alkenyl aroma race monomeric unit to 80 weight % and conjugated diene monomeric unit 20 weight % to 75 weights Measure %.
7. block copolymer constituent according to claim 1, which is characterized in that the weight of the block copolymer (A) Average molecular weight is 110,000 to 170,000.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0387671A1 (en) * 1989-03-13 1990-09-19 The Dow Chemical Company Process for preparing polymers by anionic polymerization
CN1242777A (en) * 1996-12-31 2000-01-26 拜尔公司 Process for making stabilized non-coloured rubber
KR20010036417A (en) * 1999-10-08 2001-05-07 박찬구 Process for making rubber having an excellent color and thermal resistance
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CN106189039A (en) 2016-12-07
TWI518130B (en) 2016-01-21

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