JPS6366215A - Impact-resistant polystyrene based resin composition - Google Patents
Impact-resistant polystyrene based resin compositionInfo
- Publication number
- JPS6366215A JPS6366215A JP20995586A JP20995586A JPS6366215A JP S6366215 A JPS6366215 A JP S6366215A JP 20995586 A JP20995586 A JP 20995586A JP 20995586 A JP20995586 A JP 20995586A JP S6366215 A JPS6366215 A JP S6366215A
- Authority
- JP
- Japan
- Prior art keywords
- impact
- polybutadiene
- resistant polystyrene
- resin composition
- styrene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000011342 resin composition Substances 0.000 title claims description 27
- 239000004793 Polystyrene Substances 0.000 title claims description 4
- 229920002223 polystyrene Polymers 0.000 title claims description 4
- 239000005062 Polybutadiene Substances 0.000 claims abstract description 33
- 229920002857 polybutadiene Polymers 0.000 claims abstract description 33
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229920005990 polystyrene resin Polymers 0.000 claims description 27
- 239000000203 mixture Substances 0.000 abstract description 6
- 239000012778 molding material Substances 0.000 abstract description 3
- 239000004566 building material Substances 0.000 abstract description 2
- 239000000470 constituent Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 16
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- 238000006116 polymerization reaction Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- RRKODOZNUZCUBN-CCAGOZQPSA-N (1z,3z)-cycloocta-1,3-diene Chemical compound C1CC\C=C/C=C\C1 RRKODOZNUZCUBN-CCAGOZQPSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- YNLAOSYQHBDIKW-UHFFFAOYSA-M diethylaluminium chloride Chemical compound CC[Al](Cl)CC YNLAOSYQHBDIKW-UHFFFAOYSA-M 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 229920005669 high impact polystyrene Polymers 0.000 description 2
- 239000004797 high-impact polystyrene Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000004342 Benzoyl peroxide Substances 0.000 description 1
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical compound C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- NBICYCZLCAMSBG-UHFFFAOYSA-L [Co+2].CCCCCC=CC([O-])=O.CCCCCC=CC([O-])=O Chemical compound [Co+2].CCCCCC=CC([O-])=O.CCCCCC=CC([O-])=O NBICYCZLCAMSBG-UHFFFAOYSA-L 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 235000019400 benzoyl peroxide Nutrition 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002816 nickel compounds Chemical class 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000010558 suspension polymerization method Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Graft Or Block Polymers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、優れた耐衝撃性及び良好な光沢が要求される
種々の成形品、例えば、電気製品、家具、建材の成形材
料として利用される耐衝撃性ポリスチレン系樹脂組成物
に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention is used as a molding material for various molded products that require excellent impact resistance and good gloss, such as electrical products, furniture, and building materials. The present invention relates to an impact-resistant polystyrene resin composition.
耐衝撃性ポリスチレン系樹脂は、耐衝撃性の他に、成形
性その他種々の物性に優れているため、耐衝撃性の要求
される成形品の成形材料として汎用されているが、その
用途の拡大及び該耐衝撃性ポリスチレン系樹脂から得ら
れる製品の品質向上を図る上から、優れた耐衝撃性を有
すると共に良好な光沢を有することが望まれている。Impact-resistant polystyrene resins have excellent moldability and other various physical properties in addition to impact resistance, so they are widely used as molding materials for molded products that require impact resistance, but their use is expanding. In order to improve the quality of products obtained from the impact-resistant polystyrene resin, it is desired that the resin has excellent impact resistance and good gloss.
而して、一般に、耐衝撃性ポリスチレン系樹脂の光沢を
改良するには、原料ポリブタジェンとして、溶液粘度の
低いものを用いる必要がある。Generally, in order to improve the gloss of impact-resistant polystyrene resins, it is necessary to use polybutadiene as a raw material with a low solution viscosity.
しかしながら、溶液粘度の低いポリブタジェンを用いる
と、得られる耐衝撃性ポリスチレン系樹脂の耐衝撃性が
低下する問題が生じる。このように、耐衝撃性ポリスチ
レン系樹脂において、光沢と耐衝撃性とは相反する特性
であり、耐衝撃性を低下させることなく、良好な光沢を
有する耐衝撃性ポリスチレン系樹脂を得ることは困難で
あった。However, when polybutadiene having a low solution viscosity is used, a problem arises in that the impact resistance of the resulting impact resistant polystyrene resin is reduced. In this way, gloss and impact resistance are contradictory properties in impact-resistant polystyrene resins, and it is difficult to obtain impact-resistant polystyrene resins with good gloss without reducing impact resistance. Met.
従って、本発明の目的は、優れた耐衝撃性及び良好な光
沢を有する耐衝撃性ポリスチレン系樹脂組成物を提供す
ることにある。Therefore, an object of the present invention is to provide an impact-resistant polystyrene resin composition having excellent impact resistance and good gloss.
本発明者らは、種々検討した結果、ムーニー粘度及び溶
液粘度がそれぞれ特定範囲内にある高シスボリフ゛タジ
エンを用いることによって、上記目的を達成し得る耐衝
撃性ポリスチレン系樹脂組成物が得られることを知見し
た。As a result of various studies, the present inventors have found that an impact-resistant polystyrene-based resin composition that can achieve the above objectives can be obtained by using a high cis-based polybutadiene whose Mooney viscosity and solution viscosity are each within specific ranges. I found out.
本発明は、上記知見に基づきなされたもので、ムーニー
粘度（ＭＬ、。ａ （１００℃） ）が２８〜３８で且
つ溶液粘度〔５重量％−スチレン（３０℃）〕が５５以
上である、シス−１，４構造のものを主構成成分とする
ポリブタジェンと、スチレンとを主成分として得られた
、耐衝撃性ポリスチレン系樹脂組成物を提供するもので
ある。The present invention was made based on the above findings, and has a Mooney viscosity (ML, a (100°C)) of 28 to 38 and a solution viscosity [5% by weight of styrene (30°C)] of 55 or more. The present invention provides an impact-resistant polystyrene-based resin composition obtained mainly from polybutadiene having a cis-1,4 structure and styrene.
以下、本発明の耐衝撃性ポリスチレン系樹脂組成物につ
いて詳述する。Hereinafter, the impact-resistant polystyrene resin composition of the present invention will be explained in detail.
本発明で用いられるポリブタジェンは、ムーニー粘度（
ＭＬ、、、 （１００℃） ）が２８〜３８、好ましく
は３０〜３６で且つ溶液粘度〔５重量％−スチレン（３
０℃） ）が５５以上、好ましくは６０以上である、シ
ス−１，４構造のものを主構成成分とするもの、好まし
くは、シス−１，４構造含有率が８５モル％以上のもの
、更に好ましくは９０モル％以上のもので、例えば、シ
ス−１，４構造含有率８５〜９９モル％、トランス−１
，４構造含有率０．５〜１０モル％、１，２構造含有率
０．５〜１０モル％のものが用いられる。The polybutadiene used in the present invention has a Mooney viscosity (
ML (at 100°C) is 28 to 38, preferably 30 to 36, and the solution viscosity is [5% by weight - styrene (3
0°C)) is 55 or more, preferably 60 or more, and the main constituent is a cis-1,4 structure, preferably, the cis-1,4 structure content is 85 mol% or more, More preferably 90 mol% or more, for example, cis-1,4 structure content of 85 to 99 mol%, trans-1
, 4 structure content of 0.5 to 10 mol % and 1,2 structure content of 0.5 to 10 mol %.
ムーニー粘度又は溶液粘度が前記範囲を逸脱したポリブ
タジェンでは、本発明の目的は達成できない。即ち、ム
ーニー粘度が前記範囲内であっても溶液粘度が５５未満
のポリブタジェンを用いた場合、或いは溶液粘度が前記
範囲内であってもムーニー粘度が３８超若しくは２８未
満のポリブタジェンを用いた場合には、優れた耐衝撃性
及び良好な光沢を有する面Ｊ衝撃性ポリスチレン系樹脂
組成物は得られない。If the polybutadiene has a Mooney viscosity or a solution viscosity outside the above range, the object of the present invention cannot be achieved. That is, when using polybutadiene with a solution viscosity of less than 55 even if the Mooney viscosity is within the above range, or when using polybutadiene with a Mooney viscosity of more than 38 or less than 28 even though the solution viscosity is within the above range. In this case, a surface J impact polystyrene resin composition having excellent impact resistance and good gloss cannot be obtained.
上記ポリブタジェンは、有機アルミニウム化合物と、コ
バルト又はニッケル化合物とを含む触媒を用いる等の公
知の製造法において、水の使用量を適当に調節すること
によって製造できる。The above polybutadiene can be produced by appropriately adjusting the amount of water used in a known production method such as using a catalyst containing an organoaluminum compound and a cobalt or nickel compound.
また、本発明に係る耐衝撃性ポリスチレン系樹脂組成物
を得るに際しての上記ポリブタジェンとスチレンとの好
ましい使用割合は、スチレン９８〜８５重量部に対して
上記ポリブタジェン２〜１５重量部、好ましくはスチレ
ン９５〜８８重量部に対して上記ポリブタジェン５〜１
２重量部であり、ポリブタジェンの使用量が２重量部未
満であると、耐衝撃性が向上せず、１５重量部を超える
と、剛性や機械的な強度が低下する。Further, when obtaining the impact-resistant polystyrene resin composition according to the present invention, the preferred ratio of the polybutadiene and styrene used is 2 to 15 parts by weight of the polybutadiene to 98 to 85 parts by weight of styrene, preferably 95 to 95 parts by weight of styrene. 5 to 1 part of the above polybutadiene per ~88 parts by weight
If the amount of polybutadiene used is less than 2 parts by weight, impact resistance will not improve, and if it exceeds 15 parts by weight, rigidity and mechanical strength will decrease.
本発明に係る耐衝撃性ポリスチレン系樹脂組成物は、公
知の方法、例えば、塊状重合法、又は塊状−懸濁重合法
、具体的には、例えば特開昭５７−１４３３１３号公報
に記載の方法に準じて製造できる。The impact-resistant polystyrene resin composition according to the present invention can be produced by a known method, for example, a bulk polymerization method or a bulk-suspension polymerization method, specifically, for example, the method described in JP-A-57-143313. It can be manufactured according to
更に、本発明の耐衝撃性ポリスチレン系樹脂組成物の製
造時に、必要に応じ、上記ポリブタジェンに、他の化合
物、例えば、スチレン−ブタジェン共重合体、エチレン
−プロピレン共重合体、エチレン−酢酸ビニル共重合体
、アクリル系ゴム等を上記ポリブタジェンに対し３０重
量％以内において併用することができ、またスチレンに
該スチレンと共重合可能なビニル系モノマーを該スチレ
ンに対し３０重量％以内において併用できる。また、必
要に応じ、ムーニー粘度又は溶液粘度が前記範囲外のポ
リブタジェンを、上記ポリブタジェンに対し５０重量％
以内において併用することもできる。Furthermore, when producing the impact-resistant polystyrene resin composition of the present invention, other compounds such as styrene-butadiene copolymer, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, etc. may be added to the polybutadiene as necessary. Polymers, acrylic rubbers, etc. can be used together in an amount of up to 30% by weight based on the polybutadiene, and a vinyl monomer copolymerizable with the styrene can be used in combination with the styrene in an amount of up to 30% by weight based on the styrene. In addition, if necessary, polybutadiene having a Mooney viscosity or solution viscosity outside the above range may be added to the polybutadiene in an amount of 50% by weight based on the polybutadiene.
They can also be used together within the same range.
更に、本発明の耐衝撃性ポリスチレン系樹脂組成物には
、従来の耐衝撃性ポリスチレン系樹脂組成物と同様に、
その製造時に、必要に応じ、種々の添加剤、例えば、安
定剤、着色剤、可塑剤、紫外線吸収剤を適宜添加できる
。Furthermore, the impact-resistant polystyrene resin composition of the present invention, like the conventional impact-resistant polystyrene resin composition,
During production, various additives such as stabilizers, colorants, plasticizers, and ultraviolet absorbers can be added as necessary.
〔実施例］
以下に、本発明の耐衝撃性ポリスチレン系樹脂組成物に
用いられるポリブタジェンの製造例、及び本発明の耐衝
撃性ポリスチレン系樹脂組成物の実施例を挙げて本発明
の詳細な説明する。[Example] The present invention will be described in detail below with reference to production examples of polybutadiene used in the high-impact polystyrene resin composition of the present invention and examples of the high-impact polystyrene resin composition of the present invention. do.
製造例
ベンゼン１５００ｍｌに、１，３−ブタジェン３８０ｇ
を加え、次いで下記表−−１に示す量の水及びジエチル
アルミニウムモノクロライド（ＤＥＡＣ）、シクロオク
タジエン（ＣＯＤ） １０ｍｍｏｌ、及びオクテン酸
コバルト０．０２ ｍｍｏｌを加えた後、５０’Ｃ下に
４０分間撹拌して１．３−ブタジェンの重合反応を行わ
せた。重合反応終了後、重合溶液に少量の２，６−ジ第
三ブチルパラクレゾールを含むメタノール５ｍｌを注入
して重合を停止させて、次いで重合溶液を水洗し、簡易
型コアギユレータ−装置にてゴムをクラムとして回収し
、６０゛Ｃで乾燥してポリブタジェン（下記表−１のＮ
ｏ、１）を得た。得られたポリブタジェンのシス含量、
ムーニー粘度及び溶液粘度を下記表−１に示す。Production example 1,3-butadiene 380g to 1500ml benzene
Then, water, diethylaluminum monochloride (DEAC), cyclooctadiene (COD) 10 mmol, and cobalt octenoate 0.02 mmol were added in the amounts shown in Table 1 below, and the mixture was heated at 50'C for 40 min. The mixture was stirred for a minute to carry out the polymerization reaction of 1,3-butadiene. After the polymerization reaction is completed, 5 ml of methanol containing a small amount of 2,6-di-tert-butyl para-cresol is injected into the polymerization solution to stop the polymerization.Then, the polymerization solution is washed with water, and the rubber is processed using a simple coagulator device. Collected as crumbs and dried at 60°C to remove polybutadiene (N of Table 1 below).
o, 1) was obtained. The cis content of the obtained polybutadiene,
Mooney viscosity and solution viscosity are shown in Table 1 below.
尚、下記表−１に示すＮ００２及び隔３は、下記表−１
に示す量の水及びＤＥＡＣを用いた以外は上記歯１と同
条件下に実施し、阻４は、下記表−１に示す量の水及び
ＤＥＡＣを用い、且つＣＯＤの使用量を７ｍｍｏｌとし
た以外は上記歯１と同条件下に実施した。In addition, N002 and interval 3 shown in Table-1 below are as shown in Table-1 below.
Test 4 was carried out under the same conditions as in Tooth 1 above, except that the amounts of water and DEAC shown in Table 1 were used, and the amount of COD used was 7 mmol. Except for this, the test was carried out under the same conditions as for Tooth 1 above.
下記表−１の隘１及び１１ｋ１２のポリブタジェンは、
本発明の耐衝撃性ポリスチレン系樹脂組成物に用いられ
るもので、１Ｉｋ１３及び隘４のポリブタジェンは、ム
ーニー粘度又は溶液粘度が本発明の範囲を逸脱したもの
である。The polybutadiene in columns 1 and 11k12 of Table 1 below is:
Among those used in the impact-resistant polystyrene resin composition of the present invention, polybutadiene 1Ik13 and No. 4 have Mooney viscosity or solution viscosity outside the range of the present invention.
表−１
＊１： ムーニー粘度（ＭＬｌ、４ （１００℃）
）Ｊ Ｉ Ｓ Ｋ ６３００
＊２： 溶液粘度〔５重量％−スチレン（３０“Ｃ）
）実施例１．２及び比較例１．２
上記製造例で得たポリブタジェン陽１〜４を使用して下
記の如くしてそれぞれ耐衝撃性ポリスチレン系樹脂組成
物を製造した。Table-1 *1: Mooney viscosity (MLl, 4 (100℃)
) J I S K 6300 *2: Solution viscosity [5% by weight - styrene (30"C)
) Example 1.2 and Comparative Example 1.2 Using polybutadiene positives 1 to 4 obtained in the above production examples, impact-resistant polystyrene resin compositions were produced as follows.
１βセパラブルフラスコを窒素ガスで置換し、スチレン
５５８ｇと下記表−２に示すポリブタジェン４２ｇ（ゴ
ム７重量％）とを加えて溶解し、次いでｎ−ドデシルメ
ルカプタン０．３０ｇを加えて、１１５’Ｃでスチレン
重合率が３０％になるまで撹拌下に予備重合した。次い
で予備重合溶液を０．５重量％のポリビニルアルコール
水溶液７００ｍ１を加えた１、５７！のオートクレーブ
に注入し、ベンゾイルパーオキサイド１．２ｇ及びジク
ミルパーオキサイド１．２ｇを加えて、１００℃で２時
間、次いで１２５℃で３時間、次いで１４０℃で２時間
撹拌下に重合した。重合反応混合物からビーズ状のポリ
マーを濾集し、水洗し、乾燥し、押出機でペレット化し
て、それぞれ耐衝撃性ポリスチレン系樹脂組成物５５５
ｇを得た。得られた耐衝撃性ポリスチレン系樹脂組成物
をそれぞれ射出成形して、物性測定用の試験片を作成し
、それぞれ下記表−２に示す物性を測定した。それらの
測定結果を下記表−２に示す。The 1β separable flask was purged with nitrogen gas, 558 g of styrene and 42 g of polybutadiene (7% by weight of rubber) shown in Table 2 below were added and dissolved, and then 0.30 g of n-dodecylmercaptan was added and the mixture was heated to 115'C. Prepolymerization was carried out under stirring until the styrene polymerization rate reached 30%. Next, 700 ml of a 0.5% by weight polyvinyl alcohol aqueous solution was added to the prepolymerization solution. 1.2 g of benzoyl peroxide and 1.2 g of dicumyl peroxide were added thereto, and the mixture was polymerized with stirring at 100°C for 2 hours, then at 125°C for 3 hours, and then at 140°C for 2 hours. Bead-shaped polymers are collected by filtration from the polymerization reaction mixture, washed with water, dried, and pelletized using an extruder to obtain impact-resistant polystyrene resin composition 555.
I got g. The resulting impact-resistant polystyrene resin compositions were each injection molded to prepare test pieces for measuring physical properties, and the physical properties shown in Table 2 below were measured. The measurement results are shown in Table 2 below.
実施例３．４及び比較例３
下記表−３に示すポリブタジェンを用い、ｎ−ドデシル
メルカプタンの使用量を０．１８ ｇ及び予備重合温度
を１２５℃とした以外は実施例１と同条件下に実施して
、それぞれ耐衝撃性ポリスチレン系樹脂組成物５５１ｇ
を得た。得られた耐衝撃性ポリスチレン系樹脂組成物そ
れぞれについて、実施例１と同様にして物性を測定した
。それらの測定結果を下記表−３に示す。Example 3.4 and Comparative Example 3 Polybutadiene shown in Table 3 below was used, the amount of n-dodecylmercaptan used was 0.18 g, and the prepolymerization temperature was 125°C under the same conditions as Example 1. 551g of impact-resistant polystyrene resin composition
I got it. The physical properties of each of the resulting impact-resistant polystyrene resin compositions were measured in the same manner as in Example 1. The measurement results are shown in Table 3 below.
尚、下記の表−２及び表−３における＊３〜８は次の通
りである。Note that *3 to *8 in Tables 2 and 3 below are as follows.
＊３： ＪＩＳ Ｎ７２１０ （２００℃１５ｋｇ
）＊４： ＪＴＳ Ｎ７１１０ （ノツチ付）＊
５： ＪＩＳ Ｚ８７４１ （６０℃）＊６：耐
衝撃性ポリスチレン系樹脂組成物１ｇをベンゼン５０ｍ
１に溶解させた時の不溶分＊７：ベンゼン不溶分の湿潤
時重量と乾燥時重量の比（湿潤時重量／乾燥時重量）＊
８
ニー日科機製のコールタ−カウンターＴＡ−２型を用い
て測定
上記の表−２及び表−３に示す結果から、本発明の耐衝
撃性ポリスチレン系樹脂組成物（実施例１〜４）は、優
れた耐衝撃性及び良好な光沢を有するが、ムーニー粘度
又は溶液粘度が本発明の範囲を逸脱したポリブタジェン
を用いて得られる耐衝撃性ポリスチレン系樹脂組成物（
比較例１〜３）は、優れた耐衝撃性及び良好な光沢を併
有していないことが判る。*3: JIS N7210 (200℃ 15kg
) *4: JTS N7110 (with notch) *
5: JIS Z8741 (60°C) *6: 1 g of impact-resistant polystyrene resin composition mixed with 50 m of benzene
Insoluble content when dissolved in 1 *7: Ratio of wet weight to dry weight of benzene insoluble content (wet weight / dry weight) *
8 Measured using a Coulter Counter Model TA-2 manufactured by Nikkaki Co., Ltd. From the results shown in Tables 2 and 3 above, the impact-resistant polystyrene resin compositions of the present invention (Examples 1 to 4) , an impact-resistant polystyrene resin composition obtained using polybutadiene that has excellent impact resistance and good gloss, but whose Mooney viscosity or solution viscosity is outside the range of the present invention (
It can be seen that Comparative Examples 1 to 3) do not have both excellent impact resistance and good gloss.
本発明の耐衝撃性ポリスチレン系樹脂組成物は、優れた
耐衝撃性及び良好な光沢を有するものである。The impact-resistant polystyrene resin composition of the present invention has excellent impact resistance and good gloss.
Claims (3)
が２８〜３８で且つ溶液粘度〔５重量％−スチレン（３
０℃）〕が５５以上である、シス−１，４構造のものを
主構成成分とするポリブタジエンと、スチレンとを主成
分として得られた、耐衝撃性ポリスチレン系樹脂組成物
。(1) Mooney viscosity [ML_1_+_4 (100℃)]
is 28 to 38, and the solution viscosity is [5% by weight - styrene (3
0° C.)] of 55 or more, an impact-resistant polystyrene-based resin composition obtained mainly from polybutadiene having a cis-1,4 structure and styrene.
つ溶液粘度が６０以上である、特許請求の範囲第（１）
項記載の耐衝撃性ポリスチレン系樹脂組成物。(2) Claim No. 1, wherein the polybutadiene has a Mooney viscosity of 30 to 36 and a solution viscosity of 60 or more.
The impact-resistant polystyrene resin composition described in .
が８５モル％以上である、特許請求の範囲第（１）項記
載の耐衝撃性ポリスチレン系樹脂組成物。(3) The impact-resistant polystyrene resin composition according to claim (1), wherein the content of cis-1,4 structure in the polybutadiene is 85 mol% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20995586A JPS6366215A (en) | 1986-09-05 | 1986-09-05 | Impact-resistant polystyrene based resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20995586A JPS6366215A (en) | 1986-09-05 | 1986-09-05 | Impact-resistant polystyrene based resin composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6366215A true JPS6366215A (en) | 1988-03-24 |
Family
ID=16581431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20995586A Pending JPS6366215A (en) | 1986-09-05 | 1986-09-05 | Impact-resistant polystyrene based resin composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6366215A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51131590A (en) * | 1975-05-12 | 1976-11-16 | Asahi Chem Ind Co Ltd | A process for producing high-impact polystyrene |
| JPS6011517A (en) * | 1983-07-01 | 1985-01-21 | Idemitsu Petrochem Co Ltd | Monovinyl aromatic resin composition |
| JPS60104112A (en) * | 1983-11-11 | 1985-06-08 | Asahi Chem Ind Co Ltd | Impact-resistant polystyrene resin and its production |
-
1986
- 1986-09-05 JP JP20995586A patent/JPS6366215A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51131590A (en) * | 1975-05-12 | 1976-11-16 | Asahi Chem Ind Co Ltd | A process for producing high-impact polystyrene |
| JPS6011517A (en) * | 1983-07-01 | 1985-01-21 | Idemitsu Petrochem Co Ltd | Monovinyl aromatic resin composition |
| JPS60104112A (en) * | 1983-11-11 | 1985-06-08 | Asahi Chem Ind Co Ltd | Impact-resistant polystyrene resin and its production |
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