JPS63159457A - Thermoplastic olefin elastomer - Google Patents
Thermoplastic olefin elastomerInfo
- Publication number
- JPS63159457A JPS63159457A JP30671886A JP30671886A JPS63159457A JP S63159457 A JPS63159457 A JP S63159457A JP 30671886 A JP30671886 A JP 30671886A JP 30671886 A JP30671886 A JP 30671886A JP S63159457 A JPS63159457 A JP S63159457A
- Authority
- JP
- Japan
- Prior art keywords
- mfr
- oil
- 10min
- ethylene
- cold resistance
- 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
- 229920001971 elastomer Polymers 0.000 title abstract description 5
- 239000000806 elastomer Substances 0.000 title abstract 3
- 229920002397 thermoplastic olefin Polymers 0.000 title description 16
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000005977 Ethylene Substances 0.000 claims abstract description 4
- 229920001577 copolymer Polymers 0.000 claims abstract description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 claims abstract 3
- 229920002943 EPDM rubber Polymers 0.000 claims description 9
- 229920000092 linear low density polyethylene Polymers 0.000 claims description 6
- 239000004707 linear low-density polyethylene Substances 0.000 claims description 6
- -1 polypropylene Polymers 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims 2
- 150000001336 alkenes Chemical class 0.000 claims 2
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 claims 2
- 229920002725 thermoplastic elastomer Polymers 0.000 claims 2
- 229920001155 polypropylene Polymers 0.000 claims 1
- 238000002347 injection Methods 0.000 abstract description 14
- 239000007924 injection Substances 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 11
- 238000001746 injection moulding Methods 0.000 abstract description 4
- 150000001993 dienes Chemical class 0.000 abstract 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 abstract 2
- 229920001897 terpolymer Polymers 0.000 abstract 2
- 239000004606 Fillers/Extenders Substances 0.000 abstract 1
- 239000012778 molding material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 11
- 239000003921 oil Substances 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 3
- 239000008188 pellet Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- YWAKXRMUMFPDSH-UHFFFAOYSA-N pentene Chemical compound CCCC=C YWAKXRMUMFPDSH-UHFFFAOYSA-N 0.000 description 1
- 239000003348 petrochemical agent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 229920001384 propylene homopolymer Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、オレフィン系熱可塑性エラストマー（以下ｒ
ＴＰｏＪ ）に関し、特にサイドモール。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to an olefinic thermoplastic elastomer (hereinafter referred to as r
Regarding TPoJ), especially the side molding.
バンパー、プツトガード等の自動車用外装部品の射出材
ネ１として好適なものである。It is suitable as an injection material for automotive exterior parts such as bumpers and boot guards.
〈従来の技術〉
ＴＰＯはその比重が軽い、耐寒性が良好、＃候性に優れ
ている等の特長を有するため、上記自動車用外装部品の
材ネ１としての適用化がすすめられつつある。そして、
自動車用外装部品は、最近の傾向として耐寒性の要求が
より厳格になりつつある。<Prior Art> Since TPO has features such as low specific gravity, good cold resistance, and excellent weather resistance, its application as the material 1 for the above-mentioned automobile exterior parts is being promoted. and,
As a recent trend, requirements for cold resistance are becoming more stringent for automotive exterior parts.
ところが、耐寒性に優れた自動車用外装部品を、ＴＰＯ
を用いて射出成形により得ようとすると、ＴＰＯに含ま
れるゴム分（ＥＰＤＭ）の配合比が高いため、成形品に
フロー（又はスワール）マーク等が発生し良好な即ち均
一な外観のものを得がたかった。 そこで、上記問題点
を解決するためにゴム成分を部分架橋したＴＰＯを用い
る技術がある（特開昭４７−１８９４３号、同４８−２
８８３８号、同５３−１４５８５７号、同５２−１４２
７５３号、回５４−１３８８号等）、記〈発明が解決し
ようとする問題点〉
しかし、ＴＰＯからなる射出材料の調製において１部分
架橋プロセスを含むため、その制御が困難で、安定した
品質のＴＰＯを得がたく、結果的に、ＴＰＯからなる射
出材料が結果的にコスト高となった。However, automotive exterior parts with excellent cold resistance are made from TPO.
When attempting to obtain a molded product by injection molding using TPO, flow (or swirl) marks etc. occur on the molded product due to the high blending ratio of the rubber component (EPDM) contained in TPO, making it difficult to obtain a good or uniform appearance. It was hard. Therefore, in order to solve the above problems, there is a technique using TPO in which the rubber component is partially cross-linked (Japanese Patent Application Laid-open Nos. 47-18943 and 48-2).
No. 8838, No. 53-145857, No. 52-142
(No. 753, No. 54-1388, etc.), (Problems to be Solved by the Invention) However, since the preparation of the injection material made of TPO involves a partial crosslinking process, it is difficult to control it, and it is difficult to maintain stable quality. TPO is difficult to obtain, and as a result, injection materials made of TPO end up being expensive.
〈発明の目的〉
本発明は、上記にかんがみて、部分架橋という複雑な製
造工程をとらずに、厳しい耐寒性要求に答えられ、しか
もポリブレンド自体の流動性も良好なＴＰＯを提供する
ことを目的とする。<Purpose of the Invention> In view of the above, the present invention aims to provide a TPO that can meet strict cold resistance requirements without the complicated manufacturing process of partial crosslinking, and also has good fluidity as a polyblend itself. purpose.
く問題点を解決するための手段〉
本発明のＴＰＯは、特定のＭＦＲで規定されるＰＰ３０
〜４５ｗｔ％、特定の油展量及びムーニー粘度で規定さ
れる油展ＥＰＤＭ３５〜４５ｗｔ％。Means for Solving Problems〉 The TPO of the present invention has a PP30 defined by a specific MFR.
-45 wt%, oil-extended EPDM 35-45 wt% as defined by specific oil extension amount and Mooney viscosity.
それぞれ特定のＭＦＲで規定されるＥＭＭＡ４〜１０ｗ
ｔ％、５ＢＳ４〜１５ｗｔ％、及びＬＬＤＰＥ５〜１ｏ
ｕｔ％からなるポリブレンドとすることにより、上記目
的を達成するものである。EMMA4~10w each specified by specific MFR
t%, 5BS4-15wt%, and LLDPE5-1o
By creating a polyblend consisting of ut%, the above object is achieved.
（１）上記で使用するＰＰとしては、プロピレンの単独
重合体、又はプロピレンとエチレン、ブテン−１、ペン
テン−１などのα−オレフィンとの共重合体を挙げるこ
とができるが、プロピレンとエチレンとの共重合体が好
ましい、そして、乙のＰＰは、ＭＦＲ（２３０℃、２１
６０ｇ）が５〜８０ ｇ ／ １０分（望ましくは１０
〜５０ｇ／１０分）で規定されるものである。ＭＦＲが
５ｇ７１０分未満では、ポリブレンドの流動性が良好で
なくフローマーク等の外観不良が発生しやすく、ＭＦＲ
が８０ｇ７１０分を超えると、成形品に常用強度（自動
車の外装品等における）を得がたい。(1) Examples of the PP used above include a propylene homopolymer or a copolymer of propylene and an α-olefin such as ethylene, butene-1, or pentene-1; A copolymer of
60g) is 5-80g/10 minutes (preferably 10
~50g/10 minutes). If the MFR is less than 5 g and 710 minutes, the fluidity of the polyblend is not good and appearance defects such as flow marks are likely to occur, and the MFR
If it exceeds 80 g and 710 minutes, it is difficult to obtain the strength for regular use (for automobile exterior parts, etc.) in the molded product.
（２）上記で使用する油展ＥＰＤＭは、油展量が１０＝
１００ｐｈｒ （望ましくは４０〜１００ｐｈｒ）
で、かつ、ムーニー粘度ＭＬ１４（１２０℃）３０〜１
００で規定されるものである。(2) The oil-extended EPDM used above has an oil-extended amount of 10=
100 phr (preferably 40-100 phr)
And, Mooney viscosity ML14 (120°C) 30-1
00.
油展量が１ｏｐｈｒ未満では、成形品の離型性が低下し
、１００ｐｈｒを超えると離型後の成形品にブリードが
発生するおそれがある。なお、油展に使用するオイルと
しては、パラフィン系やナフテン系のものを用いる。上
記ムーニー粘度がＭ Ｌ １４（１２０℃）３０未満で
は、成形品表面に十分な耐寒性を得がたく、１００を超
えるとＰＰとのブレンドが困難となり、成形品に常用強
度を得がたいとともに、フローマーク等の外観不良が発
生しやすい。If the amount of oil extended is less than 1 ophr, the mold releasability of the molded product will decrease, and if it exceeds 100 phr, there is a risk that bleeding will occur in the molded product after release from the mold. Note that paraffin-based or naphthene-based oils are used for oil extension. If the above-mentioned Mooney viscosity is less than M L 14 (120°C) 30, it will be difficult to obtain sufficient cold resistance on the surface of the molded product, and if it exceeds 100, it will be difficult to blend with PP, it will be difficult to obtain regular strength in the molded product, and the flow will be reduced. Appearance defects such as marks are likely to occur.
（３）上記で使用するＥＭＭＡは、ＭＦＲ（２３０℃、
ｚｔｅｏｇ）が１００〜４５０ｇ７１０分（望ましくは
２００ｇ７１０分以上）で規定されるものである。(3) The EMMA used above has a MFR (230°C,
zteog) is defined as 100 to 450 g, 710 minutes (preferably 200 g, 710 minutes or more).
ここで、ＥＭＭＡのＭＦＲは高い方が、ポリブレンドの
流動性の見地から望ましく、ｔｏＯｇ／ｌ゛０分以下で
はポリブレンドの流動性が良好でなくなる。Here, the higher the MFR of EMMA is, the more desirable it is from the viewpoint of fluidity of the polyblend, and if it is less than 0g/10 min, the fluidity of the polyblend will not be good.
（０上記で使用するＳＢＳは、ＭＦＲ（１９０℃、２１
６０ｇ）が１〜５ｇ／１０分で規定されるものである。(0 The SBS used above has a MFR (190°C, 21
60g) is defined as 1 to 5g/10 minutes.
上記範囲より小さいと流動性に悪影響をグーえ、超える
と耐寒性に悪影響を与える。If it is smaller than the above range, it will have a bad effect on fluidity, and if it exceeds it, it will have a bad effect on cold resistance.
（５）上記で使用するＬＬＤＰＥは、 ＭＦＲ（２３０
℃、２１６０ｇ）が８〜２５ｇ／１０分で規定されるも
のである。上記範囲より小さいと流動性に悪影響を与え
、超えると耐寒性に悪影響を与える。(5) The LLDPE used above has an MFR (230
℃, 2160 g) is defined as 8 to 25 g/10 minutes. If it is smaller than the above range, it will have an adverse effect on fluidity, and if it exceeds it, it will have an adverse effect on cold resistance.
（８）ＰＰ、油展ＥＰＤＭ、ＥＭＭＡ、ＳＢＳ、ＬＬＤ
ＰＥの各ブレンド比は上記の通りである。(8) PP, oil-extended EPDM, EMMA, SBS, LLD
Each blending ratio of PE is as described above.
ＰＰが３０ｗｔ％未満では、流動性が悪くなり、また、
４５１％を超えると、成形品に耐寒性を付与し難い。If the PP content is less than 30 wt%, the fluidity will be poor, and
If it exceeds 451%, it will be difficult to impart cold resistance to the molded product.
油展ＥＰＤＭが３５ｗｔ％未満では、相対的にＰＰの量
が増大し、成形品に耐寒性を付与し難く、また、４５ｗ
ｔ％を超えるとに流動性に悪影響を与える。If the oil-extended EPDM is less than 35wt%, the amount of PP will increase relatively, making it difficult to impart cold resistance to the molded product;
If it exceeds t%, the fluidity will be adversely affected.
ＥＭＭＡが４ｗｔ％未満では、流動性向上のための添加
効果が出す、１ｏｗｔ％を超えると成形品の耐寒性に悪
影響を供えるとともにコスト高になるＳＢＳが４ｗｔ％
未満では、耐寒性φ流動性向上の添加効果がでず、１５
ｗｔ％を超えると成形品の耐候性に悪影響を与える。If EMMA is less than 4wt%, the addition effect is produced to improve fluidity, and if it exceeds 1wt%, it has a negative effect on the cold resistance of the molded product and increases the cost.SBS is 4wt%.
If it is less than 15, the addition effect of improving cold resistance φ fluidity will not be achieved.
If it exceeds wt%, it will adversely affect the weather resistance of the molded product.
ＬＬＰＤＥが５ｗｔ％未満では耐寒性向上の添加効果が
です、１０ｗｔ％を超えると流動性に悪影響を４える。If LLPDE is less than 5 wt%, the addition effect of improving cold resistance will be poor, but if it exceeds 10 wt%, it will have a negative effect on fluidity.
（５）上記ポリブレンドであるＴＰＯには、一般の熱可
塑性樹脂に配合される副資剤、例えば、熱安定剤、老化
防止剤、紫外線吸収剤、滑剤、加工助剤、顔料、フィラ
ー等を適宜配合してもよい。(5) TPO, which is the polyblend, contains auxiliary materials that are added to general thermoplastic resins, such as heat stabilizers, anti-aging agents, ultraviolet absorbers, lubricants, processing aids, pigments, fillers, etc. They may be blended as appropriate.
そして、このＴＰＯの製造は、通常、バンバリーミキサ
−１加圧型ニーダ−などの密閉型混線機を用いて行なう
、場合により、ＰＰの一部又はＥＭＭＡの一部と、油展
ＥＰＤＭを事前に上記密閉型混練機で溶融混合後、分出
したシートからシートペレタイザで角ペレットを得、こ
の角ペレットと、残りのＰＰ及びＥＭＭＡの各ペレット
をタンプリング後、−軸又は二軸の押出機によりブレン
ドしながらペレタイズ化して製造してもよい。The production of this TPO is usually carried out using a closed mixer such as a Banbury Mixer 1 pressurized kneader. After melting and mixing in a closed kneader, square pellets are obtained from the separated sheets using a sheet pelletizer, and after tampling these square pellets and the remaining PP and EMMA pellets, they are blended using a -shaft or twin-screw extruder. It may also be produced by pelletizing.
〈発明の効果〉
本発明のＴＰＯは、射出材おｌの調製に際して部分架橋
プロセスを含まなくても、後述の実施例で示すように、
耐寒性に優れかつ良好（均一）な外観の射出成形品を得
ることができる。即ち、射出材料の調製に際して１部分
架橋プロセスを含まないので、ラフな温度、圧力条件の
制御及び、単純な混練機構で済み、材料コストの大幅な
低減が図れる。<Effects of the Invention> The TPO of the present invention has the following effects, as shown in the Examples below, even without a partial crosslinking process during the preparation of the injection material.
An injection molded product with excellent cold resistance and a good (uniform) appearance can be obtained. That is, since a partial crosslinking process is not included in the preparation of the injection material, rough control of temperature and pressure conditions and a simple kneading mechanism are required, resulting in a significant reduction in material cost.
また、流動性も良好で、射出成形に際して、可塑化温度
や射出圧を高める必要がなく、成形性（生産性）も向上
する。In addition, it has good fluidity, so there is no need to increase the plasticizing temperature or injection pressure during injection molding, and moldability (productivity) also improves.
〈実施例〉
以下、実施例に基づいて、本発明をさらに詳細に説明を
する。<Examples> Hereinafter, the present invention will be explained in more detail based on Examples.
各実施例・比較例に使用する各ポリマーの仕様を下記に
示す。The specifications of each polymer used in each example and comparative example are shown below.
ＰＰ・ Ｊ８３０ＨＶ（宇部興産社製）、ＭＦＲ，３０
ｇ／１０分（２３０℃、２１６０ｇ）。PP/J830HV (manufactured by Ube Industries), MFR, 30
g/10 minutes (230°C, 2160g).
ＥＰＤＭ・・・ＥＰ９８ （日本合成ゴム社製）、ムー
ニー粘度ＭＬ１４（１２０℃）６０、油展量７５ｐｈｒ
。EPDM...EP98 (manufactured by Japan Synthetic Rubber Co., Ltd.), Mooney viscosity ML14 (120°C) 60, oil extension amount 75 phr
.
ＥＭＭＡ・・・ＷＫ５０４（住友化学工業社製）、ＭＦ
Ｒ； ３００ （２３０℃、２１６０ｇ）。EMMA...WK504 (manufactured by Sumitomo Chemical Co., Ltd.), MF
R: 300 (230°C, 2160g).
ＳＢＳ・・・ＴＲ２０００（日本合成ゴム社製）。SBS...TR2000 (manufactured by Japan Synthetic Rubber Co., Ltd.).
ＭＦＲ： ３ （１９０℃、２１６０ｇ）。MFR: 3 (190°C, 2160g).
ＬＬＤＰＥ・・・２０２００Ｊ （三井石油化学社製）
、ＭＦＲ，２０（２３０℃、２１６０ｇ）。LLDPE...20200J (manufactured by Mitsui Petrochemicals)
, MFR, 20 (230°C, 2160g).
第１表に示す処方で組合せたポリブレンドの配合を、蒸
気で加熱したＢＲ型バンバリーミキサ−に投入し、樹脂
温度が２００℃に１昇するまでの間、混練りを続け、１
０インチロールで分出し後、シートペレタイザーでペレ
ット状の射出材料をｉＡ製した。The polyblend formulation combined according to the recipe shown in Table 1 was put into a BR type Banbury mixer heated with steam, and kneading was continued until the resin temperature rose by 1 to 200°C.
After dispensing with a 0-inch roll, pelletized injection material was made into iA using a sheet pelletizer.
こうして得た各射出材料を用いて、射出温度２２０℃、
射出圧力８００ ｋｇｆ／ｃｒｎ’、射出時間１０秒
、金型温度３０°Ｃの条件により射出成形を行ない、１
０１００Ｘ２００Ｘ５の成形品を得た。そしてそれらの
各成形品について、下記項目の試験測定を行なった。そ
の結果を第１表に示すが、本発明の特定のＰＰ、ＥＰＤ
Ｍ、ＥＭＭＡ、ＳＢＳ及びＬＬＤＰＥのポリブレンドか
らなるＴＰＯで射出成形された成形品は、いずれも、良
好な耐寒性を示すとともに、かつ成形品外観も良好であ
ることがわかる。Using each injection material thus obtained, the injection temperature was 220°C,
Injection molding was performed under the conditions of injection pressure 800 kgf/crn', injection time 10 seconds, and mold temperature 30°C.
A molded article measuring 0100x200x5 was obtained. The following tests and measurements were conducted on each of these molded products. The results are shown in Table 1, and the specific PP and EPD of the present invention
It can be seen that all molded products injection molded with TPO made of polyblends of M, EMMA, SBS, and LLDPE exhibit good cold resistance and also have a good appearance.
（１）流動性・・・ＡＳＴＭ Ｄ１２３８に基づいて
行ナツタ、条件１ｉ ２３０℃、２１６０ｇとした。(1) Fluidity: Based on ASTM D1238, condition 1i: 230° C., 2160 g.
（２）耐寒性・・・ＡＳＴＭ Ｄ２５６に基づいて一
３０℃におけるアイゾツト衝撃値（ｌ／８インチノツチ
付）を測定した。(2) Cold resistance: Izot impact value (with l/8 inch notch) at -30°C was measured based on ASTM D256.
（３）成形品外観・・・目視によりフローマーク等の発
生の有無を判定し、無しを“Ｏｏｏ、僅かに発生を“Δ
パ、目立つを×゛とした。(3) Appearance of the molded product: Visually judge whether there are flow marks, etc.
Pa, I marked the one that stands out as ×゛.
Claims (1)
％、油展エチレン・プロピレン・ジエンタ−ポリマー（
以下「油展ＥＰＤＭ」）３５〜４５ｗｔ％、エチレン・
メチルメタクリレートコポリマー（以下「ＥＭＭＡ」）
４〜１０ｗｔ％、スチレン・ブタジエンコポリマー（以
下「ＳＢＳ」）４〜１５ｗｔ％、及び直鎖低密度ポリエ
チレン（以下「ＬＬＤＰＥ」）５〜１０ｗｔ％からなる
ポリブレンドであり、 前記ＰＰとして、メルトフローレート（以下「ＭＦＲ」
）（２３０℃、２１６０ｇ）が５〜８０ｇ／１０分のも
のを用い、 前記油展ＥＰＤＭとして、油展量が１０〜１００ｐｈｒ
、ムーニー粘度がＭＬ＿１＿＋＿８（１２０℃）３０〜
１００のものを用い、 前記ＥＭＭＡとして、ＭＦＲ（２３０℃、２１６０ｇ）
が１００〜４５０ｇ／１０分のものを用い、 前記ＳＢＳとしてＭＦＲ（１９０℃、２１６０ｇ）が１
〜５ｇ／１０分のものを用い、 前記ＬＬＤＰＥとしてＭＦＲ（２３０℃、２１６０ｇ）
が８〜２５ｇ／１０分のものを用いることを特徴とする
オレフイン系熱可塑性エラストマー。[Claims] Crystalline polypropylene (hereinafter referred to as "PP") 30-45wt
%, oil extended ethylene propylene diene terpolymer (
(hereinafter referred to as "oil-extended EPDM") 35-45 wt%, ethylene.
Methyl methacrylate copolymer (hereinafter referred to as "EMMA")
4 to 10 wt%, styrene-butadiene copolymer (hereinafter "SBS") 4 to 15 wt%, and linear low density polyethylene (hereinafter "LLDPE") 5 to 10 wt%; (hereinafter referred to as “MFR”)
) (230°C, 2160 g) for 5 to 80 g/10 minutes, and the amount of oil extension is 10 to 100 phr as the oil-extended EPDM.
, Mooney viscosity is ML_1_+_8 (120℃) 30~
100 was used, and as the EMMA, MFR (230°C, 2160g)
100 to 450 g/10 min, and the MFR (190°C, 2160 g)
~5g/10min was used, and MFR (230°C, 2160g) was used as the LLDPE.
An olefin-based thermoplastic elastomer characterized by using an olefin-based thermoplastic elastomer having a weight of 8 to 25 g/10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30671886A JPS63159457A (en) | 1986-12-23 | 1986-12-23 | Thermoplastic olefin elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP30671886A JPS63159457A (en) | 1986-12-23 | 1986-12-23 | Thermoplastic olefin elastomer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63159457A true JPS63159457A (en) | 1988-07-02 |
Family
ID=17960460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP30671886A Pending JPS63159457A (en) | 1986-12-23 | 1986-12-23 | Thermoplastic olefin elastomer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63159457A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403200A (en) * | 2014-12-15 | 2015-03-11 | 苏州宽温电子科技有限公司 | Anti-aging composite material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59204645A (en) * | 1983-05-09 | 1984-11-20 | Showa Denko Kk | Olefinic polymer composition |
| JPS59204644A (en) * | 1983-05-09 | 1984-11-20 | Showa Denko Kk | Olefinic polymer composition |
| JPS6032842A (en) * | 1983-08-04 | 1985-02-20 | Showa Denko Kk | Olefinic polymer composition |
-
1986
- 1986-12-23 JP JP30671886A patent/JPS63159457A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59204645A (en) * | 1983-05-09 | 1984-11-20 | Showa Denko Kk | Olefinic polymer composition |
| JPS59204644A (en) * | 1983-05-09 | 1984-11-20 | Showa Denko Kk | Olefinic polymer composition |
| JPS6032842A (en) * | 1983-08-04 | 1985-02-20 | Showa Denko Kk | Olefinic polymer composition |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104403200A (en) * | 2014-12-15 | 2015-03-11 | 苏州宽温电子科技有限公司 | Anti-aging composite material and preparation method thereof |
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