JPS58210949A - Preparation of impact-resistant polypropylene composition - Google Patents
Preparation of impact-resistant polypropylene compositionInfo
- Publication number
- JPS58210949A JPS58210949A JP9300382A JP9300382A JPS58210949A JP S58210949 A JPS58210949 A JP S58210949A JP 9300382 A JP9300382 A JP 9300382A JP 9300382 A JP9300382 A JP 9300382A JP S58210949 A JPS58210949 A JP S58210949A
- Authority
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- Japan
- Prior art keywords
- ethylene
- polypropylene
- propylene
- impact
- copolymer resin
- 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.)
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Abstract
Description
【発明の詳細な説明】
本発明は耐衝撃白化性、光沢、透明性及び耐衝撃性に優
nたポリプロピレン組成物に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polypropylene composition having excellent impact whitening resistance, gloss, transparency and impact resistance.
ポリプロピレンは優れた機械的物性を有し、広範囲に使
用されている。中でも耐衝撃性を改善したプロピレン−
エチレンブロック共重合体は剛性の高めこともあり特に
射出成形分野に広く用いられている。しかしながらプロ
ピレン−エチレンブロック共重合体は一般に衝撃を与え
たり、折曲げた時白化するため用途によっては著しく商
品価値を損ねる。Polypropylene has excellent mechanical properties and is widely used. Among them, propylene with improved impact resistance.
Ethylene block copolymers are widely used, especially in the injection molding field, due to their increased rigidity. However, propylene-ethylene block copolymers generally whiten when subjected to impact or when bent, which can significantly reduce commercial value depending on the application.
本発明者らは、ポリプロピレン本来のW性を保持したま
ま耐衝撃性及び耐白色性の優nた組成物を得るべく鋭意
倹約した結果ポリプロピレン゛と特定のエチレン−αオ
レフイン共重合体樹脂とをラジカル発生剤存在下で溶融
混練し分子量減成することにより成形性に優れしかも上
記要求物性を満足する組成物が得られることを見い出し
本発明に到達した。The present inventors made careful efforts to obtain a composition with excellent impact resistance and white color resistance while retaining the inherent W properties of polypropylene, and as a result, they combined polypropylene with a specific ethylene-α-olefin copolymer resin. The present invention was achieved by discovering that a composition having excellent moldability and satisfying the above-mentioned physical properties can be obtained by melt-kneading in the presence of a radical generator to reduce the molecular weight.
即ち、本発明UMF I 0.03〜10 ?/10分
のポリプロピレンにエチレン−α−オレフィン共重合体
樹脂を5〜50%混合し、有機過酸化物を用いてMFI
を元のポリプロピレンの2〜100倍になるよう分子量
減成することを特徴とする耐白化性の優nた耐衝撃性ポ
リプロピレン組成物の製造方法にある。That is, the UMF I of the present invention is 0.03 to 10? 5 to 50% of ethylene-α-olefin copolymer resin was mixed with polypropylene for 10 minutes, and MFI was applied using organic peroxide.
The present invention provides a method for producing an impact-resistant polypropylene composition with excellent whitening resistance, characterized in that the molecular weight of the polypropylene is reduced to 2 to 100 times that of the original polypropylene.
本発明の効果は、ポリプロピレンがホモポリプロピレン
又はプロピレン−エチレンランダム共重合体の場合には
本発明の方法により、耐衝撃性が大巾に改善さn耐白化
性及び透明性は上記ポリプロピレン単味よシは若干悪化
するが、従来の耐衝撃性ポリマ、ロビレン組成物に比し
、これら物性バランスが非常−に優nた組成物を得るこ
とが出来る。The effect of the present invention is that when the polypropylene is homopolypropylene or a propylene-ethylene random copolymer, the impact resistance is greatly improved by the method of the present invention, and the whitening resistance and transparency are higher than that of the polypropylene alone. However, it is possible to obtain a composition that has a much better balance of these physical properties than conventional impact-resistant polymer and Robyrene compositions.
またポリプロピレンが開ゆるエチレン¥プロピレンブロ
ック共重合体の場合には、本発明の方法にまり耐衝撃性
の大巾な向上、耐白化性の改善が違更に本発明の特徴は
高い溶融流れの組成物を製造しても高い耐衝撃性の他に
優れた引張り伸びを示すことであり、このことが、成形
品の実用的な耐衝性を更に高めている。Furthermore, in the case of an ethylene/propylene block copolymer in which polypropylene is open, the method of the present invention significantly improves impact resistance and whitening resistance, and the present invention is characterized by a high melt flow composition. Even when manufactured, it shows not only high impact resistance but also excellent tensile elongation, which further improves the practical impact resistance of molded products.
一般に耐衝撃性はMFIの増加とともに急激に低下する
が本発明の場合、有機過酸化物を用いて分子量減成する
前の低いMFIの組成物よシ、分子量減成した非常に高
いMFI組成物の方が耐衝撃性が優れる。(比較例1と
実姉例1比較)このことは本発明の効果が高分子量で混
合したことによりブレンド組成物の相容性が増加した効
果ではなくその後の過酸fヒ物によシ分予電減成の効果
ト考えられ、ラジカルによる両成分の軽架橋の可能性が
考えらnる。また本発明の利点としてはPPの耐衝撃向
上のために従来゛より行なわ几ているゴムブレンドと比
較し、溶剤油脂への可溶分が増加しないことであり食品
衛生上好ましい方法である。In general, impact resistance rapidly decreases as MFI increases, but in the case of the present invention, a composition with a low MFI before molecular weight reduction using an organic peroxide is compared to a composition with a very high MFI after molecular weight reduction. has better impact resistance. (Comparison of Comparative Example 1 and Actual Sister Example 1) This indicates that the effect of the present invention is not due to the increased compatibility of the blend composition due to mixing at a high molecular weight, but due to the subsequent peracid and arsenic compound. This is thought to be due to the effect of electrical degeneration, and the possibility of light crosslinking of both components by radicals is considered. Another advantage of the present invention is that the soluble content in solvent oils and fats does not increase compared to rubber blending, which has been conventionally used to improve the impact resistance of PP, and is therefore a preferred method from the viewpoint of food hygiene.
本発明のポリプロピレンとl−1:230℃、a m
2.16Kgテ測定されたMF I カ0.03〜1(
1/10分のプロピレンホモポリマー、エチレン含量1
0重量%以下のプロピレンエチレンランダム共重合体及
びエチレン含量3〜30重量%のプロピレンエチレンブ
ロック共重合体から選ばれた一種又はこれらの二種以上
の混合物である。Polypropylene of the present invention and l-1: 230°C, am
2.16Kg Te measured MF I 0.03-1 (
1/10 minute propylene homopolymer, ethylene content 1
It is one selected from a propylene ethylene random copolymer having an ethylene content of 0% by weight or less and a propylene ethylene block copolymer having an ethylene content of 3 to 30% by weight, or a mixture of two or more thereof.
MFIか0.03r/10分未満では好ましい成形性を
有する組成物を得るために多量の有機過酸化物を必要と
し組成物の色や具の悪化原因と・なり好ま1、<1イ。If the MFI is less than 0.03 r/10 minutes, a large amount of organic peroxide is required to obtain a composition with preferable moldability, which may cause deterioration of the color and texture of the composition.
更[M F I カ10 t 710分を越えると、溶
融粘度が低下し、エチレン−αオレフイン共重合体樹脂
との分散性が悪fヒするためが低部耐衝撃性の改善効果
が乏しい。Furthermore, if the time exceeds 710 minutes, the melt viscosity decreases and the dispersibility with the ethylene-α olefin copolymer resin deteriorates, resulting in a poor effect of improving the impact resistance in the lower part.
エチレン−αオレフイン共重合体樹脂とは、MI(19
0℃、2.16Kg荷重) 7% 0.1〜50 ?
/10分で、密度0.910〜0.935 f / c
tlであるエチレンと炭素数3〜20のα−オレフィン
の一種もしくは二種以上との共重合体であり線状低密度
ポリエチレンである。ポリプロピレンに対する上記、エ
チレン−αオレフイン共重合体樹脂の混合比率は5〜5
0重量%であり、5重量饅未満では耐衝撃性及び耐白化
性の改善効果に乏しく50重量%を超えると成形品の伸
びか悪化する。Ethylene-α olefin copolymer resin is MI (19
0℃, 2.16Kg load) 7% 0.1~50?
/10 min, density 0.910-0.935 f/c
It is a copolymer of ethylene (tl) and one or more α-olefins having 3 to 20 carbon atoms, and is linear low-density polyethylene. The mixing ratio of the above ethylene-α olefin copolymer resin to polypropylene is 5 to 5.
If the content is less than 5% by weight, the effect of improving impact resistance and whitening resistance will be poor, and if it exceeds 50% by weight, the elongation of the molded product will deteriorate.
本発明に用いる有機過酸化物としては、1分半減期湛度
が1400〜260°程度となるノ・イドロバ−オキサ
イド類アルキルパーオキサイド類アシルパーオキサイド
類ケトンパーオキサイド類アルキルパーエステル類パー
オキシジカーボネート類ンリコーンパーオキサイド類等
が挙げら几例えば、第三級ブチルハイドロパーオキサイ
ド、第三級メチルパーオキシインプロピルカーボネー)
、2.5−ジメチル−2,5−ジ、(第三級メチルパー
オキン)ヘキサンツクεルバーオキサイド、l、3ビス
(第三級メチルパーオキシイソグロピル)ベンゼン、ベ
ンゾイルパーオキサイド、メチルインブチルケトンパー
オキザイド、第三級ブチルパーベンゾエートクメンハイ
ドロパーオキサイド、ジイソプロピルベンゼンハイドロ
バーオキサイドなどを挙げることが出来る。Organic peroxides used in the present invention include hydrocarbons, alkyl peroxides, acyl peroxides, ketone peroxides, alkyl peresters, and peroxides having a half-life of about 1,400 to 260 degrees per minute. Examples of carbonates include silicone peroxides (for example, tertiary butyl hydroperoxide, tertiary methyl peroxyimpropyl carbonate)
, 2,5-dimethyl-2,5-di, (tertiary methyl peroxyisogropyl) hexane rubber oxide, l, 3 bis (tertiary methyl peroxy isoglopyl) benzene, benzoyl peroxide, methyl inbutyl ketone peroxide Oxide, tertiary butyl perbenzoate cumene hydroperoxide, diisopropylbenzene hydroperoxide and the like can be mentioned.
有機過酸fヒ物は分子量減成後の組成物のMFIが元の
ポリプロピレンの2〜100倍になるように添加するが
通常o、oi〜1.0重量%の範囲が選ばれる。The organic peracid is added so that the MFI of the composition after molecular weight reduction is 2 to 100 times that of the original polypropylene, and is usually selected in a range of o, oi to 1.0% by weight.
前記ポリプロピレンとエチレン−αオレフイン共重合体
位1脂及び有機過酸fヒ物の混合方法は三者を混合し溶
融混練しても前二者を溶融混練した後有機過酸rヒ物を
添加し再度溶融混練しても良い。混練する方法はスクリ
ュー押し出し機加熱ロール、バンバリーεキサ−など通
常の溶融混合法に用いられる装置によって行なう・こと
が出来る。The method for mixing the polypropylene, the ethylene-α olefin copolymer, the position 1 fat, and the organic peracid can be either by mixing the three and melt-kneading, or by melt-kneading the first two and then adding the organic peracid. You may melt and knead again. The kneading can be carried out using devices used in ordinary melt mixing methods, such as a screw extruder heated roll or a Banbury epsilon mixer.
本発明の方法により得ら几る組成物は一般の射出成形分
野に広く好適に使用出来るが、透明性、耐衝撃性を利用
して複合フィルムレトルトフィルムなどのフィルム分野
更にはブロー成形分野等にも有用に用いることが出来る
。The composition obtained by the method of the present invention can be suitably used in a wide range of general injection molding fields, but it can also be used in film fields such as composite films and retort films, as well as blow molding fields, etc. by taking advantage of its transparency and impact resistance. can also be usefully used.
次に実施例及び比較例をあげ、本発明を更に詳細に説明
する。なお、各側において示される組成物の物性測定は
下記の方法によった。Next, the present invention will be explained in more detail by giving Examples and Comparative Examples. The physical properties of the compositions shown on each side were measured by the following method.
(イ)試料板の作製
ベレットを10オンス射出成形機で2陥厚の平板を成形
し、供試した。(a) Preparation of sample plate The pellet was molded into a flat plate with a thickness of 2 cavities using a 10-ounce injection molding machine, and was used as a test sample.
(ロ) 耐白化性
射出成形した厚さ2叫の平板に高さ50crnより30
01の鋼球を落下したとき生じる白斑の大きさを、■
(良)〜10 (悪)まで10段階で表示する。ランク
IU、ホモポリプロピレンl’プロピレンエチレンラン
ダム共重合体であり、ランクIOHMFI約30 f
/ 10分のブロック共重合体(昭和電工株式会社製
MK711)とした。(b) Whitening resistance Injection molded flat plate with a thickness of 2 cm and a height of 50 crn to 30 cm
The size of the white spot that occurs when a steel ball of 01 is dropped is
Displayed on a scale of 10 (good) to 10 (bad). Rank IU, homopolypropylene l' propylene ethylene random copolymer, rank IOH MFI about 30 f
/ 10 minute block copolymer (manufactured by Showa Denko Co., Ltd.)
MK711).
(ハ) アイゾツト衝撃強度
ASTM D256
に)引張強度
ASTM D638
実施例I
M F I 0.41 r /l(lのポリプロピレン
ホモポリマー粉末8.5 Kqにブテン−1を共重合し
たM I 7.02/10分密度0.9208 y/c
cの線状低密度ポリエチレン粉末1.5 KL!と有機
過酸化物として1,3ビス(第三級ブチルパーオキシイ
ソプロピル)ベンゼン51及び酸化防止剤として、2,
6ジ第三級ブチ(lレバ2メチルフェノールSt、ステ
アリン酸カル7ユーム102、シミリスチルチオジプロ
ピオネート10Fをヘンシェルミキサーで混合し40間
Ω押し出し機を用いて230℃で混線分子量減成した。(c) Izot impact strength ASTM D256) Tensile strength ASTM D638 Example I MF I 0.41 r/l (L polypropylene homopolymer powder 8.5 Kq copolymerized with butene-1 MI 7.02 /10 min density 0.9208 y/c
c linear low density polyethylene powder 1.5 KL! and 1,3bis(tert-butylperoxyisopropyl)benzene51 as an organic peroxide and 2,
6 di-tertiary butylene (l) methyl phenol St, calcium stearate 102, and similystyl thiodipropionate 10F were mixed in a Henschel mixer and subjected to crosstalk molecular weight reduction at 230°C using an Ω extruder for 40 minutes. .
得ら几たペレットのMFIは12.4r710分であっ
た。The MFI of the obtained pellets was 12.4r710 minutes.
比較例工
有機過酸化物を用いない以外は実施例1と全く同様にし
て混練し、 MF I 0.4+1/10分のペレット
を得た。Comparative Example Kneading was carried out in exactly the same manner as in Example 1, except that no organic peroxide was used, to obtain pellets having an MF I of 0.4+1/10 min.
比較例2
線状低密度ポリエチレンを用いず、ポリプロピレン粉末
を10に9とした他は全く同様にてM F I 11゜
6F/10分のペレットを得た。Comparative Example 2 Pellets with an M FI of 11°6F/10 minutes were obtained in exactly the same manner except that the linear low-density polyethylene was not used and the polypropylene powder was changed from 9 to 10.
比較例3
有機過酸化物を用いず、ポリプロピレンとしてM F
I 13 flIQ分を用いる以外は実施例1と同様に
行ない、MF I 12.2 y710分のベレットを
得た。Comparative Example 3 M F as polypropylene without using organic peroxide
The same procedure as in Example 1 was carried out except that I 13 flIQ was used to obtain a pellet of MF I 12.2 y710.
比較例4.5
線状低密度ポリエチレンを密度0. c+17o y
/cc、M I 7. O1710分の高圧法ポリエチ
レン(比較例4〕及び密度0.945y/cc1M 1
7.81710分の高密度ポリエチレン(比較例5)に
変更した以外は実施例1と全く同様に処理し、Mp11
3.ty/10分(比較例4)及びI2.0グ/10分
(比較例5)のベレットを得た。Comparative Example 4.5 Linear low density polyethylene with a density of 0. c+17o y
/cc, M I 7. High-pressure polyethylene with O1710 min (Comparative Example 4) and density 0.945y/cc1M 1
7. Processed in exactly the same manner as in Example 1 except for changing to high-density polyethylene of 81710 min (Comparative Example 5), and Mp11
3. ty/10 minutes (Comparative Example 4) and I2.0 g/10 minutes (Comparative Example 5) were obtained.
実施例2
線状低密度ポリエチレンとして密度0.9162y/C
C,M I 0.81710分のヘキセン−1共重合体
を用い過酸化物量を61とした以外は実施例1と同様に
行なって、MF I 13.5r/10分のペレットを
得た。Example 2 Density 0.9162y/C as linear low density polyethylene
The procedure of Example 1 was repeated except that a hexene-1 copolymer with a C, MI of 0.81710 minutes was used and the amount of peroxide was changed to 61, to obtain pellets with an MF I of 13.5 r/10 minutes.
実施例3
密度0.9296 r /CC,M I 1.3 f
710分のヘキセン−1共重合体を25%添加した以外
は実施例2と同様に行ないM F I 10.4 r
710分のベレットを得た。Example 3 Density 0.9296 r/CC, M I 1.3 f
The same procedure as in Example 2 was carried out except that 25% of hexene-1 copolymer of 710 min was added, and M F I 10.4 r
A pellet of 710 minutes was obtained.
実施例4.5
プロピレンホモポリマーとしてMFI3.1t/10分
(実施例4)、及びMFIo、08(実施例5)を用い
た以外は実施例2と同様に行なって、MF12:L5
Sl’ / 10分(実砲例4) 、4.3 ?/10
分(実施例5)のペレットを得た、
実砲例6
ポリプロピレンとしてエチレン含量3.6重量係MF
10.48SJ/l(lのプロピレン−エチレンランダ
ム共重合体を用い、線状低密度ポリエチレンとしてオク
テン−1を共重合したM I 2.1 f/lLO分密
度0.9174f/ccのものを用い有機過酸化物とし
て、2,5−ジメチル−2,5−ジ(第三級メチルパー
オキン)ヘキサンff:4P用いた以外は実施例1と同
様に行ないMF I 8.6 Y/10分のペレットを
得/ヒ。Example 4.5 MF12:L5
Sl' / 10 minutes (actual gun example 4), 4.3? /10
(Example 5) pellets were obtained, Actual gun example 6 ethylene content 3.6 weight ratio MF as polypropylene
Using a propylene-ethylene random copolymer of 10.48 SJ/l (l) and copolymerizing octene-1 as linear low density polyethylene, M I 2.1 f/l LO fractional density 0.9174 f/cc was used. The procedure was repeated in the same manner as in Example 1, except that 2,5-dimethyl-2,5-di(tertiary methylperoquine)hexane ff:4P was used as the organic peroxide. Profit/hi.
比較例6
実施例6と同様に但し線状低密度ポリエチレンは用いず
に、プロピレン−エチレン共重合体を1OK9用い、M
FI8.2P/10分のペレットを得た。Comparative Example 6 Same as Example 6, except that linear low density polyethylene was not used, propylene-ethylene copolymer was used 1OK9, and M
A pellet with FI8.2P/10 minutes was obtained.
実施例7
ポリプロピレンとしてM F I O,86f 710
分、エチレン含i8.6%のプロピレンエチレンブロッ
ク共重合体を9.2 Kqと線状低密度ポリエチレン量
を0、8 Kyとし有機過酸化物量は42とした以外は
実施例1と同様に行ないM F I 10.2 r、/
10分のペレットを得た。Example 7 M F I O, 86f 710 as polypropylene
The procedure was carried out in the same manner as in Example 1, except that the propylene ethylene block copolymer with an ethylene content of 8.6% was used at 9.2 Kq, the amount of linear low density polyethylene was set at 0.8 Ky, and the amount of organic peroxide was set at 42. M F I 10.2 r, /
A 10 minute pellet was obtained.
比較例7
線状低密度ポリエチレンを使用しない他は実施例7と同
様に行ないM F I 12.3 f 710分のペレ
ットを得た。Comparative Example 7 The same procedure as in Example 7 was conducted except that linear low-density polyethylene was not used to obtain pellets with an M FI of 12.3 f and 710 minutes.
Claims (1)
を用いてMFIを元のポリプロピレンの2〜100倍に
なるよう分子量減成することを特徴とする耐白化性の優
れた耐衝撃性ポリプロピレン組成物の製造方法。 (2)ポリプロピレンがプロピレンホモポリマー、エチ
レン含量lO重量俸以下のプロピレンエチレンランダム
共重合体及びエチレン含量20重量褒以下のプロピレン
−エチレンブロック共重合体から選ばn、た少なくとも
ひとつである特許請求の範囲第1項記載の耐衝撃性ポリ
プロピレン組成物の製造方法。 (3)エチレン−α−オレフィン共重合体樹脂が密度0
.911−0.9351f / crtlでα−オレフ
ィンが炭素数3乃至20のα−オレフィンである特許請
求の範囲第1項又は第2項記載の1耐衝撃性ポリプロピ
レン組成物の製造方法。[Scope of Claims] A polypropylene resin composition characterized by mixing 5 to 50'% of an in-copolymer resin and reducing the molecular weight of MFI to 2 to 100 times that of the original polypropylene using an organic peroxide. A method for producing an impact-resistant polypropylene composition with excellent whitening properties. (2) Claims in which the polypropylene is at least one selected from a propylene homopolymer, a propylene ethylene random copolymer with an ethylene content of 10% by weight or less, and a propylene-ethylene block copolymer with an ethylene content of 20% by weight or less 2. A method for producing an impact-resistant polypropylene composition according to item 1. (3) Ethylene-α-olefin copolymer resin has a density of 0
.. 1. The method for producing an impact-resistant polypropylene composition according to claim 1 or 2, wherein the α-olefin is an α-olefin having 3 to 20 carbon atoms.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9300382A JPS58210949A (en) | 1982-06-02 | 1982-06-02 | Preparation of impact-resistant polypropylene composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9300382A JPS58210949A (en) | 1982-06-02 | 1982-06-02 | Preparation of impact-resistant polypropylene composition |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58210949A true JPS58210949A (en) | 1983-12-08 |
JPS6365099B2 JPS6365099B2 (en) | 1988-12-14 |
Family
ID=14070192
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9300382A Granted JPS58210949A (en) | 1982-06-02 | 1982-06-02 | Preparation of impact-resistant polypropylene composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58210949A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4732940A (en) * | 1984-12-27 | 1988-03-22 | Nippon Oil Company, Limited | Crosslinked resin compositions |
US4829125A (en) * | 1987-05-26 | 1989-05-09 | Lucky Ltd. | Method of producing an olefin thermoplastic resin composition |
US4861834A (en) * | 1985-12-24 | 1989-08-29 | Societe Chimique Des Charbonnages S.A. | Compositions of ethylene polymers, and method for the preparation thereof |
US5066723A (en) * | 1988-07-15 | 1991-11-19 | Exxon Chemical Patents Inc. | Impact-modified polymers (p-1304) |
US5124193A (en) * | 1989-05-26 | 1992-06-23 | Mitsubishi Petrochemical Company Limited | Injection-molded product |
US5126408A (en) * | 1990-03-09 | 1992-06-30 | Union Carbide Chemicals & Plastics Technology Corporation | Thermoplastic olefins |
US5218046A (en) * | 1987-05-07 | 1993-06-08 | Norsolor | Thermoplastic compositions, process for preparing them and their application in the production of industrial articles |
US5250631A (en) * | 1990-06-13 | 1993-10-05 | Shell Oil Company | Polymer compositions |
US5258464A (en) * | 1990-01-29 | 1993-11-02 | Shell Oil Company | Impact copolymer compositions |
US5362782A (en) * | 1990-05-14 | 1994-11-08 | Shell Oil Company | Polymer compositions |
EP1078727A1 (en) * | 1999-08-24 | 2001-02-28 | Toyoda Gosei Co., Ltd. | Polyolefin blend containing delustering agent and molded product therefrom having varied wall thickness |
DE102013015417A1 (en) | 2012-09-24 | 2014-03-27 | Sumitomo Chemical Company, Limited | Propylene resin material and process for its preparation |
US9593194B2 (en) | 2011-08-11 | 2017-03-14 | Sumitomo Chemical Company, Limited | Method for producing olefin block polymer using group 4 transition metal complex |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56125442A (en) * | 1980-03-10 | 1981-10-01 | Showa Denko Kk | Production of crystalline polypropylene composition |
JPS58174426A (en) * | 1982-01-11 | 1983-10-13 | ノ−ザン・ペトロケミカル・カンパニ− | Viscosity breaking polymer blend and manufacture |
-
1982
- 1982-06-02 JP JP9300382A patent/JPS58210949A/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56125442A (en) * | 1980-03-10 | 1981-10-01 | Showa Denko Kk | Production of crystalline polypropylene composition |
JPS58174426A (en) * | 1982-01-11 | 1983-10-13 | ノ−ザン・ペトロケミカル・カンパニ− | Viscosity breaking polymer blend and manufacture |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4732940A (en) * | 1984-12-27 | 1988-03-22 | Nippon Oil Company, Limited | Crosslinked resin compositions |
US4861834A (en) * | 1985-12-24 | 1989-08-29 | Societe Chimique Des Charbonnages S.A. | Compositions of ethylene polymers, and method for the preparation thereof |
US5218046A (en) * | 1987-05-07 | 1993-06-08 | Norsolor | Thermoplastic compositions, process for preparing them and their application in the production of industrial articles |
US4829125A (en) * | 1987-05-26 | 1989-05-09 | Lucky Ltd. | Method of producing an olefin thermoplastic resin composition |
US5066723A (en) * | 1988-07-15 | 1991-11-19 | Exxon Chemical Patents Inc. | Impact-modified polymers (p-1304) |
US5124193A (en) * | 1989-05-26 | 1992-06-23 | Mitsubishi Petrochemical Company Limited | Injection-molded product |
US5258464A (en) * | 1990-01-29 | 1993-11-02 | Shell Oil Company | Impact copolymer compositions |
US5126408A (en) * | 1990-03-09 | 1992-06-30 | Union Carbide Chemicals & Plastics Technology Corporation | Thermoplastic olefins |
US5362782A (en) * | 1990-05-14 | 1994-11-08 | Shell Oil Company | Polymer compositions |
US5250631A (en) * | 1990-06-13 | 1993-10-05 | Shell Oil Company | Polymer compositions |
EP1078727A1 (en) * | 1999-08-24 | 2001-02-28 | Toyoda Gosei Co., Ltd. | Polyolefin blend containing delustering agent and molded product therefrom having varied wall thickness |
US6384137B1 (en) | 1999-08-24 | 2002-05-07 | Toyoda Gosei Co., Ltd. | Molded resin product having varied wall thickness and resin composition forming the same |
US9593194B2 (en) | 2011-08-11 | 2017-03-14 | Sumitomo Chemical Company, Limited | Method for producing olefin block polymer using group 4 transition metal complex |
DE102013015417A1 (en) | 2012-09-24 | 2014-03-27 | Sumitomo Chemical Company, Limited | Propylene resin material and process for its preparation |
US9303112B2 (en) | 2012-09-24 | 2016-04-05 | Sumitomo Chemical Company, Limited | Propylene resin material and method for the production thereof |
Also Published As
Publication number | Publication date |
---|---|
JPS6365099B2 (en) | 1988-12-14 |
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