WO2017111560A1 - Composition pour préparer un copolymère de type san, copolymère de type san, procédé pour sa préparation, mélange de résine de type abs résistant à la chaleur le comprenant et pastilles d'abs résistant à la chaleur - Google Patents

Composition pour préparer un copolymère de type san, copolymère de type san, procédé pour sa préparation, mélange de résine de type abs résistant à la chaleur le comprenant et pastilles d'abs résistant à la chaleur Download PDF

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WO2017111560A1
WO2017111560A1 PCT/KR2016/015247 KR2016015247W WO2017111560A1 WO 2017111560 A1 WO2017111560 A1 WO 2017111560A1 KR 2016015247 W KR2016015247 W KR 2016015247W WO 2017111560 A1 WO2017111560 A1 WO 2017111560A1
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weight
san copolymer
heat
parts
monomer
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PCT/KR2016/015247
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English (en)
Korean (ko)
Inventor
김규선
한창훈
이대우
서재범
박정태
최은정
강병일
성다은
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주식회사 엘지화학
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Priority to CN201680029768.9A priority Critical patent/CN107614599B/zh
Priority to EP16879427.9A priority patent/EP3287489B1/fr
Priority claimed from KR1020160177898A external-priority patent/KR20170076601A/ko
Publication of WO2017111560A1 publication Critical patent/WO2017111560A1/fr
Priority to US15/815,520 priority patent/US10717859B2/en

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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/02—Polymerisation in bulk
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/42—Nitriles
    • C08F220/44—Acrylonitrile
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/01—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/16—Nitrogen-containing compounds
    • C08K5/315—Compounds containing carbon-to-nitrogen triple bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, 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 aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene
    • C08L25/12—Copolymers of styrene with unsaturated nitriles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
    • C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers

Definitions

  • the present invention relates to a composition for producing a heat-resistant SAN copolymer, a SAN copolymer, a method for producing the same, a heat-resistant ABS resin blend and heat-resistant ABS pellets comprising the same.
  • Styrene-acrylonitrile (SAN) resin a copolymer resin made by polymerizing aromatic hydrocarbon styrene (SM) and unsaturated nitrile acrylonitrile (AN), has excellent transparency, chemical resistance, and rigidity. Widely used in offices, office, automobile parts, etc.
  • SAN resin is also applied to the ABS resin with low heat resistance is also used to reinforce the heat resistance.
  • the heat deformation temperature of the SAN resin is 100 to 105 °C level, there was a limit to apply to products requiring high heat resistance.
  • AMS ⁇ -methylstyrene
  • Patent Document 1 Republic of Korea Patent Publication No. 10-2015-0034979
  • the first technical problem to be solved of the present invention is to provide a composition for producing a SAN copolymer for producing a SAN copolymer having a wide molecular weight distribution.
  • Another object of the present invention is to provide a method for producing the SAN copolymer.
  • a third problem to be solved by the present invention is to provide a SAN copolymer having a wide molecular weight distribution, produced according to the method for producing a SAN copolymer.
  • a fourth problem to be solved by the present invention is to provide a heat-resistant ABS resin blend containing the SAN copolymer.
  • a fifth problem to be solved by the present invention is to provide a heat-resistant ABS pellets manufactured using the heat-resistant ABS resin blend and having excellent heat resistance and environmental stress cracking resistance.
  • the monomer mixture includes ethylene glycol dimethacrylate as a chain extender, and the monomer mixture is 60 wt% to 75 wt% based on the total weight of the monomer mixture.
  • ⁇ -methylstyrene monomers and 25 wt% to 40 wt% of acrylonitrile-based monomers, and the composition for preparing a SAN copolymer comprising 0.001 part by weight to 0.15 parts by weight based on 100 parts by weight of the ethylene glycol dimethacrylate. do.
  • a monomer mixture, and ethylene glycol dimethacrylate as a chain extender is a SAN containing an ⁇ -methylstyrene monomer and an acrylonitrile-based monomer
  • Preparing a composition for preparing a copolymer (step 1); It provides a method for producing a SAN copolymer comprising; and (Stage 2) polymerizing the composition for preparing a SAN copolymer prepared in step 1 for 6 to 8 hours at a temperature of 100 °C to 120 °C.
  • the monomer mixture includes ethylene glycol dimethacrylate as a chain extender
  • the monomer mixture is 60 to 75% by weight of the ⁇ -methylstyrene monomer, based on the total weight of the monomer mixture; And 25 wt% to 40 wt% of acrylonitrile-based monomers, wherein the composition for preparing a SAN copolymer comprising 0.001 part by weight to 0.15 parts by weight based on 100 parts by weight of the ethylene glycol dimethacrylate is polymerized.
  • PDI molecular weight distribution
  • a heat-resistant ABS resin blend comprising an ABS resin and a SAN copolymer according to the present invention.
  • the composition for producing a SAN copolymer according to the present invention includes ethylene glycol methacrylate as a chain extender, when the SAN copolymer is prepared by polymerization thereof, the molecular weight distribution of the SAN copolymer may be wide. Therefore, after the SAN copolymer and the ABS resin is mixed, the workability is excellent in the step of manufacturing the heat-resistant ABS pellets by extrusion, and thus the heat-resistant ABS pellets manufactured can maintain excellent heat resistance. Furthermore, the heat resistant ABS pellets containing the SAN copolymer have an effect of exhibiting improved environmental stress cracking resistance.
  • the terms “comprise”, “comprise” or “have” are intended to indicate that there is a feature, number, step, component, or combination thereof, that is, one or more other features, It should be understood that it does not exclude in advance the possibility of the presence or addition of numbers, steps, components, or combinations thereof.
  • a composition for preparing a SAN copolymer according to an embodiment of the present invention includes a monomer mixture and ethylene glycol dimethacrylate as a chain extender, wherein the monomer mixture is 60 wt% to based on the total weight of the monomer mixture. 75% by weight of ⁇ -methylstyrene monomer; And 25 wt% to 40 wt% of acrylonitrile-based monomers, and the ethylene glycol dimethacrylate may include 0.001 parts by weight to 0.15 parts by weight based on 100 parts by weight of the monomer mixture.
  • the "SAN copolymer production composition” is a material used to prepare a "SAN copolymer", for example, SAN copolymer by polymerizing a solution containing the composition for producing a SAN copolymer at a constant temperature in the reactor. Can be prepared.
  • the a-methyl styrene monomer is a kind of styrene monomer for preparing a SAN copolymer, and may be included in an amount of 60 wt% to 75 wt% based on the total weight of the monomer mixture, and specifically, 68 wt% to 72 wt%. It may be included in weight percent.
  • the heat resistance and polymerization conversion rate of the SAN copolymer prepared using the a-methylstyrene monomer within the above range may be excellent.
  • the acrylonitrile-based monomer for example, one or more selected from the group consisting of acrylonitrile, methacrylonitrile and ethacrylonitrile may be used.
  • the acrylonitrile monomer may be included in an amount of 25% by weight to 40% by weight based on the total weight of the monomer mixture, and specifically, may be included in an amount of 28% by weight to 32% by weight.
  • an appropriate polymerization rate may be maintained, and the heat resistance of the prepared SAN copolymer may be excellent.
  • the ethylene glycol dimethacrylate may be included in the composition for preparing the SAN copolymer as a chain extender.
  • the chain extender may be a role of extending the main chain of the polymer.
  • the ethylene glycol dimethacrylate is used as a chain extender for preparing a SAN copolymer, the molecular weight distribution (PDI) of the SAN copolymer to be produced can be widened. Therefore, after the SAN copolymer and the ABS resin is mixed, the workability is excellent in the step of manufacturing the heat-resistant ABS pellets by extruding, and thus the heat-resistant ABS pellets prepared are maintained while maintaining the excellent heat resistance. Has the effect of indicating sex.
  • the ethylene glycol dimethacrylate may be included in an amount of 0.001 parts by weight to 0.15 parts by weight based on 100 parts by weight of the monomer mixture, specifically, 0.03 parts by weight to 0.06 parts by weight.
  • ethylene glycol dimethacrylate is included in the above range, the size of the molecular weight of the SAN copolymer to be produced does not become excessive, and the distribution of molecular weight appears at an appropriate level, indicating the workability and heat resistance of the heat-resistant ABS pellets prepared. Is excellent.
  • the molecular weight distribution of the SAN copolymer may not be widened sufficiently, and the ethylene glycol dimethacrylate is included in a ratio of more than 0.15 part by weight. In this case, since the molecular weight of the SAN copolymer produced is too large, it may adversely affect the processability of the heat-resistant ABS pellets containing the SAN copolymer.
  • the composition for preparing the SAN copolymer may further include, for example, a styrene-based compound except for the ⁇ -methylstyrene monomer.
  • a styrene-based compound except for the ⁇ -methylstyrene monomer.
  • styrene, p-bromostyrene, and p-methylstyrene (p- methylstyrene), p-chlorostyrene (p-chlorostyrene) or o-bromostyrene (o-bromostyrene) may include one or more selected from the group consisting of.
  • the styrene-based compound except for the ⁇ -methylstyrene monomer may be included, for example, less than 10 parts by weight based on 100 parts by weight of the monomer mixture, and the SAN copolymer using the styrene-based compound except for the ⁇ -methylstyrene within the above range.
  • the heat resistance of the prepared SAN copolymer may be excellent.
  • composition for preparing the SAN copolymer may further include an initiator, and as an example of the initiator, cumene hydroperoxide, diisopropylbenzenehydroperoxide, tert-butyl hydroperoxide, paramethane hydroperoxide, or benzoyl peroxide, etc.
  • an initiator and as an example of the initiator, cumene hydroperoxide, diisopropylbenzenehydroperoxide, tert-butyl hydroperoxide, paramethane hydroperoxide, or benzoyl peroxide, etc.
  • reducing agents such as polysaccharides dihydroxyacetone such as dextrose, glucose
  • water-soluble persulfate initiators such as redox-based polymerization initiators such as polyamines, potassium persulfate salts, sodium persulfate salts and the like can be used, but in particular, 1,1-bis (t-butylperoxy) as an initiator Cyclohexane can be used.
  • the initiator may be included, for example, 0.2 parts by weight to 0.35 parts by weight based on 100 parts by weight of the monomer mixture.
  • a method for preparing a SAN copolymer includes a monomer mixture and ethylene glycol dimethacrylate as a chain extender, and the monomer mixture includes ⁇ -methylstyrene monomer and acrylonitrile monomer.
  • Preparing a composition for preparing a SAN copolymer comprising a (step 1); And polymerizing the SAN copolymer prepared in step 1 for 6 to 8 hours at a temperature of 100 ° C. to 120 ° C. (step 2).
  • step 1 includes a monomer mixture and ethylene glycol dimethacrylate as a chain extender, wherein the monomer mixture is a-methylstyrene monomer and acryl. It is a step of preparing a composition for producing a SAN copolymer containing a nitrile monomer.
  • the ethylene glycol dimethacrylate is used as a chain extender and thus the distribution of molecular weight (PDI) of the SAN copolymer produced can be widened.
  • the a-methylstyrene monomer may be included in 60% by weight to 75% by weight
  • the acrylonitrile monomer may be included in 25% by weight to 40% by weight
  • the ethylene glycol Dimethacrylate may be included in 0.001 parts by weight to 0.15 parts by weight based on 100 parts by weight of the monomer mixture.
  • composition for preparing the SAN copolymer may include 1,1-bis (t-butylperoxy) cyclohexane as an initiator, and the initiator may be included in an amount of 0.2 to 0.35 parts by weight based on 100 parts by weight of the monomer mixture. Can be.
  • the composition for preparing the SAN copolymer may further include an organic solvent.
  • the organic solvent may play a role of adjusting the viscosity of the polymerization solution.
  • a hydrocarbon solvent may be used, and specifically, toluene may be used.
  • the organic solvent may be included in a ratio of 0.01 to 10 parts by weight based on 100 parts by weight of the monomer mixture.
  • step 2 is a step of polymerizing the SAN copolymer prepared in step 1 for 6 to 8 hours at a temperature of 100 °C to 120 °C. .
  • the polymerization reaction may be performed at a specific temperature while continuously inputting the composition for preparing the SAN copolymer prepared in step 1 into the reactor.
  • the polymerization reaction may be conventionally a method of polymerizing a SAN copolymer, and may be, for example, bulk continuous polymerization or continuous polymerization, but the method of the polymerization reaction is not limited thereto.
  • Bulk continuous polymerization may mean a polymerization in which only the monomer or only the initiator is added to the monomer and no solvent is used, and the polymerization is continuously performed throughout the polymerization operation, including injection of the monomer and extraction of the produced polymer. can do.
  • the feed rate for introducing the composition for preparing the SAN copolymer into the reactor may be 8 kg / hr to 10 kg / hr, specifically 9 kg / hr to 10 kg / hr. If the feed rate is less than 8 kg / hr, the residence time of the composition for preparing the SAN copolymer is to be increased, the problem that the molecular weight of the SAN copolymer to be produced is excessively increased and the conversion rate is increased to an appropriate level or more. It may occur, and if it exceeds 10 kg / hr may cause a problem that the polymerization conversion is reduced.
  • the continuous polymerization may be performed as follows.
  • the polymerization solution containing the composition for preparing the SAN copolymer is polymerized at a specific temperature while being introduced into reactor 1, and the polymerized polymerization solution is transferred to reactor 2, which is continuous with reactor 1, to give a temperature higher than the temperature of reactor 1. It may be a polymerization reaction at a high temperature.
  • the temperature of the reactor 2 may be as high as 1 to 5 °C, the temperature of the reactor 2 is not limited thereto.
  • the polymerization may have a polymerization conversion of 56% or more, and specifically 56% to 73%.
  • high polymerization conversion can be exhibited by using ethylene glycol dimethacrylate as a chain extender in preparing a SAN copolymer.
  • the production method of the SAN copolymer after the polymerization of the step 2 to remove the unreacted monomer at a temperature of 200 °C to 250 °C and a vacuum degree of 25 Torr or less; may further comprise a.
  • heat resistance may be further improved, and color characteristics may be further improved.
  • the organic solvent may be removed together with the unreacted monomer in the step.
  • SAN copolymer according to another embodiment of the present invention comprises a monomer mixture, and ethylene glycol dimethacrylate as chain extender, the monomer mixture based on the total weight of the monomer mixture, 60 to 75% Wt% ⁇ -methylstyrene monomer; And 25 wt% to 40 wt% of acrylonitrile-based monomers, wherein the composition for preparing a SAN copolymer comprising 0.001 part by weight to 0.15 parts by weight based on 100 parts by weight of the ethylene glycol dimethacrylate is polymerized.
  • PDI molecular weight distribution
  • the SAN copolymer may have a weight average molecular weight of 90,000 to 150,000 Mw, the glass transition temperature may be 124 °C to 127 °C, specifically may be 125.4 °C to 126.8 °C.
  • the SAN copolymer may have a molecular weight distribution (PDI) of 2 to 4.
  • molecular weight distribution (PDI) used in the present invention may refer to the width of the molecular weight distribution of the polymer, and the ratio of the weight average molecular weight (Mw) and the number average molecular weight (Mn) of the polymer (Mw / Mn).
  • Heat-resistant ABS resin blend according to an embodiment of the present invention may include an ABS resin and the SAN copolymer.
  • the “heat resistant ABS resin blend” is a material used to manufacture “heat resistant ABS pellets”.
  • the “ABS resin” and the “SAN copolymer” are mixed and extruded at a predetermined temperature to produce “heat resistant ABS pellets.” Pellets ”.
  • the heat-resistant ABS resin blend includes a SAN copolymer having a wide molecular weight distribution, it is easy to mix between the ABS resin and the SAN copolymer and has excellent workability.
  • the ABS resin may be a copolymer including an acrylonitrile monomer, a conjugated diene compound, and an aromatic vinyl compound.
  • the ABS resin is a butadiene resin graft polymerized styrene-acrylonitrile polymer
  • the ABS resin is 30 to 50% by weight of the styrene-acrylonitrile polymer based on the total weight of the ABS
  • butadiene The monomer may be included in an amount of 50 wt% to 70 wt%
  • the styrene-acrylonitrile polymer may include a styrene-based unit and an acrylonitrile-based unit in a weight ratio of 70:30 to 80:20.
  • the heat resistant ABS resin blend may include the ABS resin and the SAN copolymer in a weight ratio of 25 to 30:70 to 75.
  • the heat resistant ABS resin blend may further include, for example, an antioxidant, and may include a hindered phenol-based antioxidant, a phosphorus-based antioxidant, and a mixture thereof.
  • an antioxidant may include a hindered phenol-based antioxidant, a phosphorus-based antioxidant, and a mixture thereof.
  • the weather resistance and the heat resistance of the heat-resistant ABS pellets to be produced may be excellent.
  • Heat-resistant ABS pellets according to an embodiment of the present invention after mixing the heat-resistant ABS resin blend, may be prepared by extrusion.
  • the SAN copolymer included in the heat-resistant ABS composition for producing the heat-resistant ABS pellets is prepared using ethylene glycol dimethacrylate, the molecular weight distribution is wide. Accordingly, after the SAN copolymer and the ABS resin are mixed, the workability is excellent in the step of manufacturing the heat-resistant ABS pellets by extruding, while the heat-resistant ABS pellets maintain the excellent heat resistance, the high molecular weight of the SAN copolymer Due to this, there is an effect of showing improved environmental stress cracking resistance.
  • the environmental stress cracking resistance (ESCR) of the heat resistant ABS pellets may be 39 seconds to 63 seconds.
  • the stress cracking resistance of the environment may be measured by applying a thinner to a specimen prepared using heat resistant ABS pellets using a jig having a strain of 1%, and measuring the time until cracking occurs in the specimen. have.
  • a mixed solution was prepared by mixing 95 parts by weight of a monomer mixture comprising 71% by weight of ⁇ -methylstyrene (AMS) monomer and 29% by weight of acrylonitrile (AN) monomer and 5 parts by weight of toluene.
  • AMS ⁇ -methylstyrene
  • AN acrylonitrile
  • 0.2 part by weight of 1,1-bis (t-butylperoxy) cyclohexane as an initiator (0.211 parts based on 100 parts by weight of the monomer mixture) based on 100 parts by weight of the mixed solution, and ethylene glycol dimethacrylate as a chain extender.
  • 0.05 parts by weight (0.005 parts based on 100 parts by weight of the monomer mixture) were added to prepare a polymerization solution.
  • the polymerization solution was continuously introduced into the reactor No. 1 at a feed rate of 9 kg / hr, polymerized for 3 hours at a temperature of 109 ° C., and the polymerization solution polymerized for 3 hours was transferred to the reactor No. 2 at 111 ° C. The polymerization was carried out for an additional 4 hours at the temperature.
  • butadiene resin graft-polymerized styrene-acrylonitrile polymer in powder form was prepared with ABS resin.
  • the butadiene resin graft-polymerized styrene-acrylonitrile polymer is composed of 40 parts by weight of styrene-acrylonitrile-based polymer 60 parts by weight of the styrene monomer and acrylonitrile monomer polymerized in a 75:25 weight ratio.
  • the powder-form ABS resin and the pelletized SAN copolymer prepared in step 1 were mixed at a weight ratio of 27:73 (ABS resin: SAN copolymer) to prepare a mixture, and the mixture was 100 parts by weight.
  • Irganox 1076 IR1076 was added in an amount of 0.2 parts by weight as an antioxidant, and then charged into an extruder (28 kPa) at 240 ° C to prepare pellets of heat-resistant ABS pellets.
  • Example 1 Except for replacing the polymerization temperature, the content of the initiator and the chain extender, the polymerization solution feed rate, the vacuum degree in Example 1, as described in Table 1, the same process as in Example 1 was repeated to heat-resistant ABS pelletized Pellets were prepared.
  • the polymerization conversion rate (%) of the SAN copolymer in Steps 1 to 8 and Comparative Examples 1 to 5 was measured using gas chromatography.
  • the glass transition temperature, the weight average molecular weight, and the molecular weight distribution of the SAN copolymers prepared in Steps 1 to 8 and Comparative Examples 1 to 5 were measured in the following manners, respectively.
  • Weight average molecular weight (Mw) Measured relative to the standard polystyrene (PS) sample via Waters Breeze (GPC).
  • Molecular weight distribution (PDI): The ratio of the weight average molecular weight (Mw) and the number average molecular weight (Mn) of the polymer (Mw / Mn), wherein the number average molecular weight is measured using a GPC (Waters Breeze) apparatus, and the value was calculated.
  • Example Comparative example One 2 3 4 5 6 7 8 One 2 3 4 5 % Polymerization conversion 57.44 56.50 56.78 65.13 57.13 62.30 72.63 60.60 57.63 65.75 62.88 61.50 61.78 SAN Copolymer Physical Properties Tg (°C) 124.8 125.1 125.4 125.6 125.4 124.5 126.8 125.5 126.4 125.6 125.5 125.3 125.2 Mw 93837 88789 91412 97223 93312 104101 112582 108704 82844 83580 82738 81350 80476 PDI 2.13 2.22 2.18 2.10 3.00 3.13 2.86 2.64 1.79 1.77 1.80 1.90 1.98 Heat Resistant ABS Pellets Impact strength (kgcm / cm) 11.1 11.2 11.4 12.2 10.6 11.3 11.5 11.3 11.7 11.4 11.9 12.8 11.4 Heat deflection temperature (°C) 101.6 101.9 102.5 102.8 101.5 102.3 102.5 102.6 102.8 102.5 10
  • the weight average molecular weights of the SAN copolymers prepared in Examples 1 to 8 are 88,789 Mw to 112,582 Mw, while the weight average molecular weights of the SAN copolymers prepared in Comparative Examples 1 to 5 were 80,476 Mw to 83,580. It can be seen that Mw.
  • the molecular weight distribution of the SAN copolymer prepared by adding ethylene glycol dimethacrylate is increased by up to 74%, and the weight average molecular weight is also increased by up to 40% compared to the case without addition. .
  • the environmental stress cracking resistance of the heat resistant ABS pellets prepared in Examples 1 to 8 was 39 seconds to 63 seconds, whereas the environmental stress cracking resistance of the heat resistant ABS pellets prepared in Comparative Examples 1 to 5 was 25 It can be seen that from seconds to 37 seconds.
  • the polymerization conversion rate is 56.5% to 72.63%
  • the glass transition temperature is 124.5 ° C to 126.4 ° C
  • the impact strength is 10.6 kg ⁇ cm / cm to 12.8 kg ⁇ cm / cm
  • the heat deformation temperature is 101.4 ° C to 103.2 ° C
  • the color was shown to be 15.6 to 18.2, it did not appear to adversely affect the physical properties depending on whether ethylene glycol dimethacrylate is added.

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  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Graft Or Block Polymers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

La présente invention concerne une composition pour préparer un copolymère de type SAN, un copolymère de type SAN, un procédé pour sa préparation, un mélange de résine de type ABS résistant à la chaleur le comprenant et des pastilles d'ABS résistant à la chaleur. Plus particulièrement, la présente invention concerne une composition pour préparer un copolymère de type SAN, la composition comprenant un mélange de monomères et du diméthacrylate d'éthylèneglycol comme agent d'allongement de chaîne, le mélange de monomères comprenant, par rapport au poids total du mélange de monomères, 60-75 % en poids d'un monomère de type α-méthylstyrène et 25-40 % en poids d'un monomère à base d'acrylonitrile ; et le diméthacrylate d'éthylèneglycol est contenu à raison de 0,001-0,15 partie en poids pour 100 parties en poids du mélange de monomères.
PCT/KR2016/015247 2015-12-24 2016-12-23 Composition pour préparer un copolymère de type san, copolymère de type san, procédé pour sa préparation, mélange de résine de type abs résistant à la chaleur le comprenant et pastilles d'abs résistant à la chaleur WO2017111560A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201680029768.9A CN107614599B (zh) 2015-12-24 2016-12-23 制备san共聚物的组合物、san共聚物及其制备方法、包含san共聚物的abs树脂共混物以及abs颗粒
EP16879427.9A EP3287489B1 (fr) 2015-12-24 2016-12-23 Composition pour préparer un copolymère de type san, copolymère de type san, procédé pour sa préparation, mélange de résine de type abs résistant à la chaleur le comprenant et pastilles d'abs résistant à la chaleur
US15/815,520 US10717859B2 (en) 2015-12-24 2017-11-16 Composition for preparing SAN copolymer, SAN copolymer, preparation method therefore, heat-resistant ABS resin blend comprising same, and heat-resistant ABS pellets

Applications Claiming Priority (4)

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KR20150186084 2015-12-24
KR10-2015-0186084 2015-12-24
KR10-2016-0177898 2016-12-23
KR1020160177898A KR20170076601A (ko) 2015-12-24 2016-12-23 San 공중합체 제조용 조성물, san 공중합체, 이의 제조방법, 이를 포함하는 내열 abs 수지 블랜드 및 내열 abs 펠렛

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149912A (ja) * 1983-02-15 1984-08-28 Japan Synthetic Rubber Co Ltd 熱可塑性樹脂
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KR20150034979A (ko) 2013-09-27 2015-04-06 주식회사 엘지화학 내열 ｓａｎ 수지 조성물, 내열 ｓａｎ 수지, 이의 제조방법 및 이를 포함하는 내열 ａｂｓ 수지 조성물

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JPS59149912A (ja) * 1983-02-15 1984-08-28 Japan Synthetic Rubber Co Ltd 熱可塑性樹脂
KR20060052566A (ko) * 2004-11-10 2006-05-19 동우 화인켐 주식회사 고분자 입자 및 그 제조방법
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KR20150034979A (ko) 2013-09-27 2015-04-06 주식회사 엘지화학 내열 ｓａｎ 수지 조성물, 내열 ｓａｎ 수지, 이의 제조방법 및 이를 포함하는 내열 ａｂｓ 수지 조성물

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