JPH075789B2 - Polybutadiene rubber composition - Google Patents
Polybutadiene rubber compositionInfo
- Publication number
- JPH075789B2 JPH075789B2 JP61020386A JP2038686A JPH075789B2 JP H075789 B2 JPH075789 B2 JP H075789B2 JP 61020386 A JP61020386 A JP 61020386A JP 2038686 A JP2038686 A JP 2038686A JP H075789 B2 JPH075789 B2 JP H075789B2
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- JP
- Japan
- Prior art keywords
- polybutadiene rubber
- polybutadiene
- impact
- rubber composition
- intrinsic viscosity
- Prior art date
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、ポリブタジエンゴム組成物、詳しくは、特に
耐衝撃性ポリスチレン系樹脂のゴム成分として好適に利
用し得るポリブタジエンゴム組成物に関する。TECHNICAL FIELD The present invention relates to a polybutadiene rubber composition, and more particularly to a polybutadiene rubber composition that can be suitably used as a rubber component of an impact-resistant polystyrene-based resin.
ポリブタジエンゴムは、種々の特性に優れた合成ゴム
で、耐衝撃性の要求される種々の成形品の成形材料とし
て汎用されている耐衝撃性ポリスチレン系樹脂のゴム成
分としても多用されている。Polybutadiene rubber is a synthetic rubber excellent in various properties, and is also widely used as a rubber component of impact-resistant polystyrene-based resin which is widely used as a molding material for various molded articles required to have impact resistance.
このポリブタジエンゴムは、1,3−ブタジエンを重合さ
せることにより、シス−1,4構造体、トランス−1,4構造
体及び1,2−構造体の混合物として得られ、各構造体の
含有率の差異により物性にも差異が生じるが、耐衝撃性
ポリスチレン系樹脂の製造に、固有粘度〔η〕が3.0以
上のポリブタジエンを用いた場合には、スチレン溶液の
粘度が高くなり過ぎて工業的な生産が困難となり、ま
た、固有粘度〔η〕が1.4未満のポリブタジエンを用い
た場合には、得られる耐衝撃性ポリスチレン系樹脂の耐
衝撃性が不充分となるため、従来より耐衝撃性ポリスチ
レン系樹脂の製造には、通常、固有粘度〔η〕２前後の
ポリブタジエンゴムが用いられている。This polybutadiene rubber is obtained as a mixture of cis-1,4 structure, trans-1,4 structure and 1,2-structure by polymerizing 1,3-butadiene, and the content of each structure is However, when polybutadiene having an intrinsic viscosity [η] of 3.0 or more is used for the production of the impact-resistant polystyrene-based resin, the viscosity of the styrene solution becomes too high, which is industrial. The production becomes difficult, and when polybutadiene having an intrinsic viscosity [η] of less than 1.4 is used, the impact resistance of the resulting impact-resistant polystyrene-based resin becomes insufficient. Polybutadiene rubber having an intrinsic viscosity of about [η] 2 is usually used for the production of resin.
上述の如く、固有粘度〔η〕が3.0以上のもの及び1.4未
満のポリブタジエンは、耐衝撃性ポリスチレン系樹脂を
得るためのポリブタジエンとしては利用価値が低い。As described above, polybutadiene having an intrinsic viscosity [η] of 3.0 or more and less than 1.4 has low utility value as polybutadiene for obtaining an impact-resistant polystyrene resin.
また、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、更に耐衝撃
性及び光沢の改良が望まれている。In addition to impact resistance, impact-resistant polystyrene resins are excellent in moldability and various other physical properties, and are therefore widely used as molding materials for molded articles requiring impact resistance. Further improvement of impact resistance and gloss is desired in order to expand the product and improve the quality of products obtained from the impact-resistant polystyrene-based resin.
更に、ポリブタジエン自体の用途の拡大を図る上から、
その改良が望まれている。Furthermore, in order to expand the application of polybutadiene itself,
The improvement is desired.
従って、本発明の目的は、従来耐衝撃性ポリスチレン系
樹脂を得るためのゴム成分として利用価値の低かったポ
リブタジエンの利用拡大を図ると共に、一層耐衝撃性及
び光沢の改良された耐衝撃性ポリスチレン系樹脂を得る
ためのゴム成分として好適なポリブタジエンゴム組成物
を提供することにある。Therefore, an object of the present invention is to expand the use of polybutadiene, which has a low utility value as a rubber component for obtaining an impact-resistant polystyrene-based resin in the past, and to further improve impact resistance and gloss. It is to provide a polybutadiene rubber composition suitable as a rubber component for obtaining a resin.
また、本発明の他の目的は、耐衝撃性ポリスチレン系樹
脂のゴム成分としての用途以外の用途への利用も期待で
きる新規なポリブタジエンゴム組成物を提供することに
ある。Another object of the present invention is to provide a novel polybutadiene rubber composition which can be expected to be used for purposes other than the use of the impact-resistant polystyrene resin as a rubber component.
本発明者らは、種々検討した結果、従来利用価値の低か
った固有粘度〔η〕の小さいポリブタジエンと固有粘度
〔η〕の高いポリブタジエンとを一定割合で混合したポ
リブタジエンゴム組成物が上記目的を達成し得ることを
知見した。As a result of various studies, the inventors of the present invention achieved a polybutadiene rubber composition in which a polybutadiene having a low intrinsic viscosity [η] and a polybutadiene having a high intrinsic viscosity [η], which had a low utility value, were mixed at a constant ratio. It was found that it could be done.
本発明は、上記知見に基づきなされたもので、固有粘度
〔η〕が4.0〜6.0で且つシス−1,4構造のポリブタジエ
ンを主成分とする高分子量のポリブタジエン70〜30重量
部と、固有粘度〔η〕が0.6〜1.4で且つシス−1,4構造
のポリブタジエンを主成分とする低分子量のポリブタジ
エン30〜70重量部とからなる、ポリブタジエンゴム組成
物を提供するものである。The present invention was made based on the above findings, 70 to 30 parts by weight of a high molecular weight polybutadiene having an intrinsic viscosity [η] of 4.0 to 6.0 and a polybutadiene having a cis-1,4 structure as a main component, and an intrinsic viscosity The present invention provides a polybutadiene rubber composition, which comprises 30 to 70 parts by weight of low molecular weight polybutadiene mainly having polybutadiene having a cis-1,4 structure and having [η] of 0.6 to 1.4.
以下、本発明のポリブタジエンゴム組成物を、特に耐衝
撃性ポリスチレン系樹脂のゴム成分として好適なものを
耐衝撃性ポリスチレン系樹脂に用いる場合について詳述
する。Hereinafter, the case where the polybutadiene rubber composition of the present invention is used as a rubber component of an impact-resistant polystyrene-based resin for the impact-resistant polystyrene-based resin will be described in detail.
本発明で用いられる高分子量のポリブタジエンゴムは、
固有粘度〔η〕が4.0〜6.0で且つシス−1,4構造のもの
を主成分とするもので、好ましくは、シス−1,4構造含
有率が80％以上のもの、例えば、シス−1,4構造含有率8
0〜99％、トランス−1,4構造含有率0.5〜20％、1,2構造
含有率0.5〜20％のものが用いられる。The high molecular weight polybutadiene rubber used in the present invention is
Those having an intrinsic viscosity [η] of 4.0 to 6.0 and having a cis-1,4 structure as a main component, and preferably having a cis-1,4 structure content of 80% or more, for example, cis-1 , 4 Structure content 8
0 to 99%, trans-1,4 structure content 0.5 to 20%, 1,2 structure content 0.5 to 20% are used.
また、低分子量のポリブタジエンゴムは、固有粘度
〔η〕が0.6〜1.4で且つシス−1,4構造のものを主成分
とするもので、好ましくは、シス−1,4構造含有率が80
％以上のもの、例えば、シス−1,4構造含有率80〜99
％、トランス−1,4構造含有率0.5〜20％、1,2構造含有
率0.5〜20％のものが用いられる。Further, the low molecular weight polybutadiene rubber is one having an intrinsic viscosity [η] of 0.6 to 1.4 and a cis-1,4 structure as a main component, preferably a cis-1,4 structure content of 80.
% Or more, for example, cis-1,4 structure content 80 to 99
%, Trans-1,4 structure content 0.5 to 20%, 1,2 structure content 0.5 to 20%.
上記の高分子量及び低分子量のポリブタジエンゴムは、
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よって製造
できる。The above-mentioned high molecular weight and low molecular weight polybutadiene rubber,
It can be produced by a known production method such as using a catalyst containing an organoaluminum compound and a cobalt or nickel compound.
また、本発明のポリブタジエンゴム組成物における上記
の高分子量のポリブタジエンゴムと上記の低分子量のポ
リブタジエンゴムとの混合割合は、前者70〜30重量部に
対し後者30〜70重量部で、高分子量のポリブタジエンゴ
ムが多過ぎると、成形時のスチレン溶液の粘度が大きく
なり過ぎて工業的利用価値が失せ、少な過ぎると、得ら
れる耐衝撃性ポリスチレン系樹脂の衝撃強度が、固有粘
度〔η〕２前後のものより低下してしまう。また、両者
の配合割合が前記範囲を逸脱すると光沢が改良されな
い。Further, the mixing ratio of the high molecular weight polybutadiene rubber and the low molecular weight polybutadiene rubber in the polybutadiene rubber composition of the present invention is the latter 30 to 70 parts by weight with respect to the former 70 to 30 parts by weight. If the amount of polybutadiene rubber is too large, the viscosity of the styrene solution at the time of molding becomes too large, and the industrial utility value is lost. If the amount is too small, the impact strength of the resulting impact-resistant polystyrene resin has an intrinsic viscosity [η] of about 2 or less. It will be lower than that of. Further, if the blending ratio of both exceeds the above range, the gloss is not improved.
また、本発明のポリブタジエンゴム組成物における高分
子量及び低分子量のポリブタジエンゴムとしては、それ
ぞれ固有粘度〔η〕が前記範囲のものを用いる必要があ
り、前記範囲を逸脱した固有粘度〔η〕のものでは、本
発明の目的は達成できない。例えば、低分子量のポリブ
タジエンゴムとして固有粘度〔η〕が0.6未満のものを
用いたり、高分子量のポリブタジエンゴムとして4.0未
満のものを用いた場合には、これと混合する一方のポリ
ブタジエンゴムの固有粘度〔η〕が本発明の範囲内のも
のであっても、耐衝撃性が低下し、また低分子量のポリ
ブタジエンゴムとして固有粘度〔η〕が1.4超のものを
用いた場合には、成形時のスチレン溶液の粘度が大きく
なり過ぎて工業的利用価値が失せる。尚、固有粘度
〔η〕が6.0を超えたポリブタジエンゴムは、工業的な
生産が困難である。Further, as the high molecular weight and low molecular weight polybutadiene rubber of the polybutadiene rubber composition of the present invention, it is necessary to use those having an intrinsic viscosity [η] within the above range, and those having an intrinsic viscosity outside the above range [η] Then, the object of the present invention cannot be achieved. For example, when a low molecular weight polybutadiene rubber having an intrinsic viscosity [η] of less than 0.6 is used, or a high molecular weight polybutadiene rubber having a viscosity of less than 4.0 is used, the intrinsic viscosity of one of the polybutadiene rubbers mixed with this is used. Even when [η] is within the range of the present invention, impact resistance is lowered, and when a low molecular weight polybutadiene rubber having an intrinsic viscosity [η] of more than 1.4 is used, The viscosity of the styrene solution becomes too large and the industrial utility value is lost. In addition, it is difficult to industrially produce a polybutadiene rubber having an intrinsic viscosity [η] of more than 6.0.
本発明のポリブタジエンゴム組成物は、上述の如くそれ
ぞれ特定範囲の固有粘度〔η〕を有する２種類のポリブ
タジエンゴムの混合物からなるものであるが、それぞれ
のポリブタジエンゴムは、前記範囲内の固有粘度〔η〕
を有するものであれば、それぞれ固有粘度〔η〕の異な
る２種以上のものを用いても良い。The polybutadiene rubber composition of the present invention comprises a mixture of two kinds of polybutadiene rubbers each having an intrinsic viscosity [η] within a specific range as described above. Each polybutadiene rubber has an intrinsic viscosity within the above range [ η]
Two or more types having different intrinsic viscosities [η] may be used as long as they have
また、本発明のポリブタジエンゴム組成物は、本発明の
目的を逸脱しない限り、必要に応じ50重量％以内におい
て上記範囲外の固有粘度〔η〕を有するポリブタジエン
ゴムを含有することもできる。Further, the polybutadiene rubber composition of the present invention may contain a polybutadiene rubber having an intrinsic viscosity [η] outside the above range within 50% by weight, if necessary, without departing from the object of the present invention.
また、本発明のポリブタジエンゴム組成物を耐衝撃性ポ
リスチレン系樹脂の製造に用いる場合、その使用量は、
スチレン75〜98重量部に対して２〜25重量部が好まし
く、その製造時に、必要に応じ、上記ポリブタジエンゴ
ム組成物に、他の化合物、例えば、スチレン−ブタジエ
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
タジエンゴム組成物に対し50重量％以内において併用す
ることができ、また上記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50重量％以
内において併用できる。When the polybutadiene rubber composition of the present invention is used for producing an impact-resistant polystyrene resin, the amount used is
It is preferably 2 to 25 parts by weight with respect to 75 to 98 parts by weight of styrene, and at the time of its production, other compounds such as a styrene-butadiene copolymer and an ethylene-propylene copolymer are added to the polybutadiene rubber composition as needed. A compound, an ethylene-vinyl acetate copolymer, an acrylic rubber or the like can be used in combination within 50% by weight of the polybutadiene rubber composition, and the styrene is a vinyl monomer copolymerizable with the styrene. Can be used together within 50% by weight.
更に、本発明のポリブタジエンゴム組成物を上述の如く
耐衝撃性ポリスチレン系樹脂のゴム成分として用いる場
合には、従来の耐衝撃性ポリスチレン系樹脂と同様に、
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。Further, when the polybutadiene rubber composition of the present invention is used as the rubber component of the impact-resistant polystyrene-based resin as described above, like the conventional impact-resistant polystyrene-based resin,
Various additives such as a stabilizer, a coloring agent, a plasticizer, and an ultraviolet absorber can be appropriately added during the production thereof, if necessary.
尚、本発明のポリブタジエンゴム組成物は、耐衝撃性ポ
リスチレン系樹脂の製造に用いられる他、従来のポリブ
タジエンと同様に種々の用途に用いることができるもの
で、その用途に制限されるものではない。The polybutadiene rubber composition of the present invention can be used for various purposes like the conventional polybutadiene, in addition to being used for the production of impact-resistant polystyrene-based resin, and is not limited to the applications. .
以下に、本発明のポリブタジエンゴム組成物に用いられ
るポリブタジエンゴムの製造例、及び本発明のポリブタ
ジエンゴム組成物（本発明品）を使用した使用例（耐衝
撃性ポリスチレン系樹脂の製造例）を挙げて本発明の効
果を説明する。Hereinafter, production examples of polybutadiene rubber used in the polybutadiene rubber composition of the present invention, and use examples (production examples of impact-resistant polystyrene-based resin) using the polybutadiene rubber composition of the present invention (product of the present invention) will be given. The effect of the present invention will be described.
製造例 ベンゼン1500mlに、３−ブタジエン380gを加え、次いで
水1.8mmol、ジエチルアルミニウムモノクロライド3.1mm
ol、下記表−１に示す量のシクロオクタジエン及びオク
テン酸コバルトを加えた後、60℃下に30分間攪拌して1,
3−ブタジエ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、
ついで重合溶液を水洗し、簡易型コアギュレーター装置
にてゴムをクラムとして回収し、60℃で乾燥してポリブ
タジエンゴム（下記表−１のNo.1）を得た。得られたポ
リブタジエンゴムの収量、組成及び固有粘度〔η〕を下
記表−１に示す。Production example To 1500 ml of benzene, 380 g of 3-butadiene was added, then 1.8 mmol of water, 3.1 mm of diethylaluminum monochloride.
ol, the amount of cyclooctadiene and cobalt octenoate shown in Table 1 below was added, and the mixture was stirred for 30 minutes at 60 ° C.
A polymerization reaction of 3-butadiene was performed. After the completion of the polymerization reaction, 5 ml of methanol containing a small amount of 2,6-di-tert-butylparacresol was injected into the polymerization solution to stop the polymerization,
Then, the polymerization solution was washed with water, rubber was collected as crumb with a simple coagulator device, and dried at 60 ° C. to obtain a polybutadiene rubber (No. 1 in Table 1 below). The yield, composition and intrinsic viscosity [η] of the obtained polybutadiene rubber are shown in Table 1 below.
尚、下記表−１に示すNo.2〜４は、上記No.1と同条件下
に実施し、No.6及びNo.7は、No.1における「60℃下に30
分間」を「40℃下に30分間」に変えて実施し、No.5は、
No.1における「水、ジエチルアルミニウムモノクロライ
ド、シクロオクタジエン及びオクテン酸コバルト」を用
いないで「ｎ−ブチルリチウム1.9mmol」を用いて実施
した。In addition, No. 2 to 4 shown in Table 1 below were carried out under the same conditions as No. 1 above, and No. 6 and No. 7 were No. 1 "30 at 60 ° C.
Change from "minute" to "30 minutes at 40 ° C", and No.5:
It was carried out using "n-butyllithium 1.9 mmol" without using "water, diethylaluminum monochloride, cyclooctadiene and cobalt octenoate" in No. 1.
使用例1,2及び比較使用例１〜９ 上記製造例で得たポリブタジエンゴムNo.1〜７中から、
下記表−２に示す如く、２種類のポリブタジエンゴムを
選択し溶液ブレンドにて混合した後、これらのポリブタ
ジエンを使用して下記の如くしてそれぞれ耐衝撃性ポリ
スチレン系樹脂を製造した。 Use Examples 1 and 2 and Comparative Use Examples 1 to 9 From the polybutadiene rubber Nos. 1 to 7 obtained in the above production example,
As shown in Table 2 below, two kinds of polybutadiene rubbers were selected and mixed by solution blending, and then, using these polybutadienes, impact-resistant polystyrene-based resins were respectively manufactured as follows.
また、上記製造例で得たポリブタジエンゴムNo.1〜７の
中から、ポリブタジエンゴムを１種選択した場合につい
ても、それぞれ同様にして耐衝撃性ポリスチレン系樹脂
を製造した。Further, also in the case where one kind of polybutadiene rubber was selected from the polybutadiene rubber Nos. 1 to 7 obtained in the above production example, impact-resistant polystyrene-based resins were produced in the same manner.
１セパラブルフラスコを窒素ガスで置換し、スチレン
570gと下記表−２に示すポリブタジエンゴム組成物（本
発明品1,2、比較品１〜９）30g（ゴム５重量％）とを加
えて溶解し、ついでｎ−ドデシルメルカブタン0.29g及
びｎ−ブチルステアレート11.5gを加えて、120℃でスチ
レン重合率が30％になるまで攪拌下に重合した。ついで
重合溶液を0.5重量％のポリビニルアルコール水溶液600
mlを加えた1.5lのオートクレープに注入し、ベンゾイル
パーオキサイド0.93およびジクミルパーオキサイドをそ
れぞれ下記表−１に示す如く変化させて加えて、100℃
で２時間、ついで125℃で３時間、ついで140℃で２時間
攪拌下に重合した。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500gを得た。
得られた耐衝撃性ポリスチレン系樹脂をそれぞれ射出成
形して、物性測定用の試験片を作成し、それぞれ下記表
−３に示す物性を測定した。それらの測定結果を下記表
−３に示す。Replace the separable flask with nitrogen gas and use styrene.
570 g and 30 g of polybutadiene rubber compositions (invention products 1 and 2 and comparative products 1 to 9) shown in Table 2 below (rubber 5% by weight) were added and dissolved, and then 0.29 g of n-dodecyl mercaptan and n -Butyl stearate (11.5 g) was added, and the mixture was polymerized at 120 ° C with stirring until the styrene polymerization rate reached 30%. Then, the polymerization solution was added to a 0.5% by weight polyvinyl alcohol aqueous solution 600.
It was poured into a 1.5 liter autoclave containing 100 ml, and benzoyl peroxide 0.93 and dicumyl peroxide were added by changing as shown in Table 1 below, and the mixture was heated to 100 ° C.
Polymerization was carried out with stirring for 2 hours, then at 125 ° C. for 3 hours, and then at 140 ° C. for 2 hours. Bead-like polymers were collected from the polymerization reaction mixture, washed with water, dried and pelletized with an extruder to obtain 500 g of high impact polystyrene-based resin.
Each of the obtained impact-resistant polystyrene-based resins was injection-molded to prepare test pieces for measuring physical properties, and the physical properties shown in Table 3 below were measured. The measurement results are shown in Table 3 below.
表−２中No.1〜７は、上記製造例で得られたポリブタジ
エンゴムで、（ ）内の数値はそれらの固有粘度〔η〕
を示す。 Nos. 1 to 7 in Table 2 are the polybutadiene rubbers obtained in the above production examples, and the numerical values in parentheses () indicate their intrinsic viscosity [η].
Indicates.
上記表−３に示す結果から、本発明のポリブタジエンゴ
ム組成物（本発明品1,2）を用いて得られる耐衝撃性ポ
リスチレン系樹脂は、２種類のポリブタジエンゴムの固
有粘度〔η〕及びそれらの混合割合がそれぞれ本発明の
範囲を逸脱したもの（比較品１〜７）を用いて得られる
耐衝撃性ポリスチレン系樹脂（得られないものもある）
に比して耐衝撃性及び光沢等が優れていることが判る。 From the results shown in Table 3 above, the impact-resistant polystyrene-based resin obtained using the polybutadiene rubber composition of the present invention (Products 1 and 2 of the present invention) shows that the intrinsic viscosity [η] of two types of polybutadiene rubber and Impact-resistant polystyrene-based resin obtained by using a resin whose mixing ratio deviates from the range of the present invention (Comparative products 1 to 7) (some cannot be obtained)
It is understood that the impact resistance and gloss are superior to those of
本発明のポリブタジエンゴム組成物によれば、従来のポ
リブタジエンゴムに比して耐衝撃性及び光沢等の改良さ
れた耐衝撃性ポリスチレン系樹脂を得ることができる。According to the polybutadiene rubber composition of the present invention, it is possible to obtain an impact-resistant polystyrene-based resin having improved impact resistance and gloss as compared with conventional polybutadiene rubber.
Claims (2)
4構造のポリブタジエンを主成分とする高分子量のポリ
ブタジエン70〜30重量部と、固有粘度〔η〕が0.6〜1.4
で且つシス−1,4構造のポリブタジエンを主成分とする
低分子量のポリブタジエン30〜70重量部とからなる、ポ
リブタジエンゴム組成物。1. An intrinsic viscosity [η] of 4.0 to 6.0 and cis-1,
70 to 30 parts by weight of high molecular weight polybutadiene mainly composed of 4 structure polybutadiene and an intrinsic viscosity [η] of 0.6 to 1.4
And a polybutadiene rubber composition comprising 30 to 70 parts by weight of a low molecular weight polybutadiene mainly containing polybutadiene having a cis-1,4 structure.
おけるシス−1,4構造含有率が、何れも80重量％以上で
ある、特許請求の範囲第（１）項記載のポリブタジエン
ゴム組成物。2. The polybutadiene rubber composition according to claim 1, wherein the content of cis-1,4 structure in the high molecular weight and low molecular weight polybutadiene is 80% by weight or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61020386A JPH075789B2 (en) | 1986-01-31 | 1986-01-31 | Polybutadiene rubber composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61020386A JPH075789B2 (en) | 1986-01-31 | 1986-01-31 | Polybutadiene rubber composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62179542A JPS62179542A (en) | 1987-08-06 |
| JPH075789B2 true JPH075789B2 (en) | 1995-01-25 |
Family
ID=12025588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61020386A Expired - Fee Related JPH075789B2 (en) | 1986-01-31 | 1986-01-31 | Polybutadiene rubber composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH075789B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998007783A1 (en) * | 1996-08-21 | 1998-02-26 | Nippon Zeon Co., Ltd. | Polybutadiene rubber and impact-resistant aromatic vinyl resin compositions |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0751181B1 (en) * | 1995-06-30 | 2001-05-23 | Bridgestone Corporation | A rubber composition and a tire using said composition |
| CA2245239C (en) * | 1997-08-21 | 2007-04-10 | Ube Industries, Ltd. | Rubber composition |
| CA2695838C (en) * | 1999-05-19 | 2011-11-01 | Bridgestone Corporation | Low molecular weight high-cis polybutadienes and their use in high molecular weight/low molecular weight high-cis polybutadiene blends |
| CA2391210C (en) | 1999-12-23 | 2010-01-26 | Dow Global Technologies Inc. | Monovinylidene aromatic polymers with improved properties and a process for their preparation |
| JP2006213890A (en) * | 2005-02-07 | 2006-08-17 | Ube Ind Ltd | Polybutadiene and method for producing polybutadiene |
| JP2006219588A (en) * | 2005-02-10 | 2006-08-24 | Ube Ind Ltd | Polybutadiene and method for producing polybutadiene |
| CN109485772B (en) * | 2017-09-13 | 2021-10-19 | 中国石油化工股份有限公司 | Low cis-polybutadiene rubber, process for producing the same, composition thereof, aromatic vinyl resin and process for producing the same |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5636532A (en) * | 1979-09-04 | 1981-04-09 | Japan Synthetic Rubber Co Ltd | Rubber composition |
| JPS60104112A (en) * | 1983-11-11 | 1985-06-08 | Asahi Chem Ind Co Ltd | Impact-resistant polystyrene resin and its production |
| JPS60130614A (en) * | 1983-12-16 | 1985-07-12 | Asahi Chem Ind Co Ltd | Rubber-modified aromatic monovinyl polymer resin composition |
| JPS60233118A (en) * | 1984-05-04 | 1985-11-19 | Asahi Chem Ind Co Ltd | Rubber-modified aromatic monovinyl resin composition |
-
1986
- 1986-01-31 JP JP61020386A patent/JPH075789B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998007783A1 (en) * | 1996-08-21 | 1998-02-26 | Nippon Zeon Co., Ltd. | Polybutadiene rubber and impact-resistant aromatic vinyl resin compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62179542A (en) | 1987-08-06 |
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