JP4988157B2 - 低粘度均一分枝化エチレン/α−オレフィンエクステンダーを含むポリマー組成物 - Google Patents
低粘度均一分枝化エチレン/α−オレフィンエクステンダーを含むポリマー組成物 Download PDFInfo
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- JP4988157B2 JP4988157B2 JP2004541759A JP2004541759A JP4988157B2 JP 4988157 B2 JP4988157 B2 JP 4988157B2 JP 2004541759 A JP2004541759 A JP 2004541759A JP 2004541759 A JP2004541759 A JP 2004541759A JP 4988157 B2 JP4988157 B2 JP 4988157B2
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- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012968 metallocene catalyst Substances 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- QTYUSOHYEPOHLV-UHFFFAOYSA-N octadiene group Chemical group C=CC=CCCCC QTYUSOHYEPOHLV-UHFFFAOYSA-N 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000879 optical micrograph Methods 0.000 description 1
- 230000003204 osmotic effect Effects 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- PMJHHCWVYXUKFD-UHFFFAOYSA-N pentadiene group Chemical class C=CC=CC PMJHHCWVYXUKFD-UHFFFAOYSA-N 0.000 description 1
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- OJMIONKXNSYLSR-UHFFFAOYSA-N phosphorous acid Chemical compound OP(O)O OJMIONKXNSYLSR-UHFFFAOYSA-N 0.000 description 1
- 229920002587 poly(1,3-butadiene) polymer Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010058 rubber compounding Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229920006029 tetra-polymer Polymers 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Description
Mポリエチレン=a*(Mポリスチレン)b。
この式中、a=0.4316およびb=1.0である。
Mn = Σ ni * Mi / Σ nI = Σ wi / Σ(wi/Mi)
式中、
Ni = 分子量Miを有する分子の数
wi = 分子量Miを有する材料の重量分率
Σni = 分子の合計数
以下の均一分枝化実質的線状エチレン/1-オクテンコポリマーを実施例1〜7でエクステンダーとして使用した。
操作パラメーター
パラメーター 説明
計測器 ブルックフィールドDVII+粘度計
スピンドル SC-31
サンプルチャンバー HT-2DB-100アルミニウム
温度 177℃(350°F)
トルク 50〜70%
ヒートコントローラー付きサーモセル
剪断速度(rpm) 50〜70%の間のトルク値を与える剪断速度
サンプルの量 スピンドルを沈める前にチャンバーの上端から
1〜1.5インチ下の位置まで溶融体でサンプ
ルチャンバーを満たすのに十分な量。
計測器が安定な読取り値を示すようになった後で粘度の読取りを行う。
ASTM D638、速度2インチ/分を用いて、極限引張強度および破断点エネルギーの値を射出成形バーから取得した。エンド充填(end filled)された射出成形サンプルバーから作製したノッチ付きアイゾットサンプルバーを用いて特定の温度でASTM試験D-256を行うことにより、アイゾット衝撃値を得た。
この実施例では、エクステンダー1をEAAコポリマーとブレンディングすることから強化された耐衝撃性が得られることを明らかにする。
Comp Ex=比較例、Ex=実施例、Extender=エクステンダー
この実施例では、エチレンポリマー/低粘度不活性エクステンダーブレンドを、目的物のソフトな感触が必要とされる射出成形用途に、たとえば、ガスケットおよびオーバー成形用途に、用いる利点を明らかにする(実施例2で用いられる「I2」という用語は、ASTM D-1238、条件190℃/2.16kgを用いて測定されるg/10分単位のメルトインデックスI2を意味し、実施例2で用いられる用語「I21」という用語は、ASTM D-1238、条件190℃/21.6kgを用いて測定されるg/10分単位のメルトインデックスI21を意味する)。
BrabenderバッチミキサーまたはBerstoff二軸スクリュー押出機のいずれかを用いて、エチレンポリマーとエクステンダーの溶融コンパウンディングを行った。いずれのブレンドを用いた場合にも、不十分な混合およびゲルの問題は観測されなかった。
DFDB 9042/エクステンダー1、DFDB 9042/エクステンダー2、およびDFDB 1085/エクステンダー2ブレンドに対して、示差走査熱量測定(DSC)を行った。ブレンドの2回目の熱プロファイルをそれぞれのブレンド成分の2回目の熱プロファイルと比較して、ブレンドは、さらなる融解ピーク/相をなんら示さない。エチレンポリマーおよび低粘度エクステンダーは、互いに非常に相溶性がある。
ブレンドから作製されたプラックの特定の物理的性質を表2-1〜2-3に報告する。予想どおり、引張特性(強度および伸び)は、エクステンダー含有率が増大するにつれて減少する。ブレンド内のエクステンダーレベルを増大させても、硬度(ショアーAおよびショアーD)は、劇的な減少を示さない。
ブレンドのキャピラリーレオロジーデータを図1〜3に示す。エクステンダー成分の存在により剪断粘度が減少するので、加工性が改善される。
最初に2種の樹脂をブレンディングし、続いてHaakeブレンダーを用いて試験試料の形態に押し出すことにより、ポリヒドロキシアミノエーテルエポキシ樹脂BLOX*(The Dow Chemical Companyの製品および商標)(PHAE-)とエクステンダー3(0.880g/ccの密度、1000g/10分のメルトインデックス(I2)、および8200cPの350°Fブルックフィールド粘度の低粘度均一分枝化実質的線状エチレン/1-オクテンコポリマー)との4つのブレンドを調製した。これらのブレンドを応力-歪みおよびアイゾット衝撃試験に付した。ブレンドの組成および結果を表3に報告する。実施例3で用いられる「I2」という用語は、ASTM D-1238、条件190℃/2.16kgを用いて測定されるg/10分単位のメルトインデックスI2を意味する
高分子量スチレン/エチレン/ブチレン/スチレンブロックコポリマー(「SEBS」)であるKraton(商標)1651(Shell Chemical Companyの製品および登録商標)を、エクステンダー1(0.87g/ccの密度、500g/10分のI2、および17,000cPの350Fブルックフィールド粘度の低粘度均一分枝化実質的線状エチレン/1-オクテンコポリマー)と、85:15の相対重量%比でブレンディングし、ブレンドを種々の試験にかけた。実施例4で用いられる「I2」という用語は、ASTM D-1238、条件190℃/2.16kgを用いて測定されるg/10分単位のメルトインデックスI2を意味する。
動的機械的分光学的データ(図9)は、エクステンダー2を33重量パーセントの濃度でKraton(商標)1652(Shell Chemical Companyの製品および登録商標)中にブレンディングしたときに(図9で「G' 870/1k」と記されたラインを参照されたい)、同一濃度のPetrothene(商標)NA 601(Equistar Chemical Companyの登録商標および製品)と比較して(図9で「G' 601」と記されたラインを参照されたい)、G'値が約1/2桁減少することを示している。また、エクステンダー2ブレンドのG'値は、33重量パーセントの油と67重量パーセントのKraton(商標)1652とのブレンドのG'値(図9で「G' 油」と記されているラインを参照されたい)に、より近接している。G'が小さくなるほど、エラストマーはよりソフトな感触になる。低密度低粘度エクステンダーを用いると、Petrothene(商標)NA 601よりもソフトで加工適性がありしかも油充填Kraton(商標)ブレンドと対比して引張強度およびモジュラスの保持性が改良されているエラストマーが得られる。引張特性を表5にまとめる。
実施例6では、0.89g/cm3の密度および230℃で35グラム/10分のメルトフローインデックスを有するポリプロピレンホモポリマーから調製されたTPO配合物にエクステンダー1〜3を添加した。ポリプロピレンホモポリマーに対して、さまざまな量のエラストマーEL1(これは、0.870cm3の密度および190℃で5.0グラム/10分の公称メルトインデックスを有するエチレン/1-オクテンコポリマーであった。ENGAGE(商標)8200としてDu Pont Dow Elastomersから市販されている)およびエクステンダー1〜3を添加した。別段の記載がないかぎり、実施例6で用いられる「I2」という用語は、ASTM D-1238、条件190℃/2.16kgを用いて測定されるg/10分単位のメルトインデックスI2を意味する。
エンジニアリング熱可塑性樹脂、たとえば、PET、ナイロン-6,6、およびポリカーボネートと、エクステンダー2と、の一連のブレンドを、69ml容量のHaakeボウルミキサーRheomix 600により作製した。PETは、The Dow Chemical Companyから入手可能なC88等級のものであり、ポリカーボネートは、CALIBRE(商標)200-3(The Dow Chemical Companyの製品および登録商標)であった。270℃に前加熱されたボウルを用いて50rpmのローター速度でブレンドを作製した。使用前、140℃の真空オーブン中にエンジニアリング熱可塑性プラスチックを2日間入れて湿分を含む樹脂を乾燥させた。湿分除去を支援するために、わずかな窒素掃引を用いた。最初に、前加熱された回転ボウルにエンジニアリング熱可塑性プラスチックを添加し、その直後、エクステンダーを添加することにより、ブレンドを作製した。次に、ラムを下降させてボウルを密封し、溶融ブレンディングを開始し、最初の樹脂添加から8分間にわたりブレンディングを継続させた。温度、ローター速度、および溶融トルクを、グラフ表示によりモニタリングした。初期溶融後、ブレンドはすべてゼロトルクを呈した。8分間混合した後、ローターを停止し、ボウルを取り外し、ポリマーブレンドを取り出してフラットにした。ナイロンブレンドは、より急速に硬質化し、フラットにするのが困難であった。3種のブレンドの組成を表8に示し、対応するブレンドの性質を表9に示す。
Claims (9)
- A)75〜99重量パーセント(熱可塑性ブレンド組成物の全重量を基準にして)の熱可塑性ポリオレフィン組成物であって、
(a)50重量パーセント以上、100重量パーセント未満のポリプロピレンと;
(b)0重量パーセントより大きく、50重量パーセント以下の0.9130g/cm3以下の密度を有するエチレン/α−オレフィンインターポリマーと;
を含む熱可塑性ポリオレフィン組成物と;
B)1〜25重量パーセント(熱可塑性ブレンド組成物の全重量を基準にして)のエクステンダーであって、成分A)(b)とは異なる均一分枝化実質的線状エチレン/C3〜20α−オレフィンインターポリマーを含み、かつ
(a)少なくとも0.855であり、そして0.899g/cm3以下の密度と;
(b)350°Fにおいて500cP〜40,000cPのブルックフィールド粘度と;
を有するエクステンダーと;
を含む、熱可塑性ブレンド組成物において、
該熱可塑性ブレンド組成物のメルトインデックスが、該熱可塑性ポリオレフィン組成物のメルトインデックスに対して少なくとも5%増大されている、熱可塑性ブレンド組成物。 - A)前記熱可塑性ポリオレフィン組成物が、80〜98重量パーセント(熱可塑性ブレンド組成物の全重量を基準にして)の量で存在し;しかも
B)前記エクステンダーが、2〜20重量パーセント(熱可塑性ブレンド組成物の全重量を基準にして)の量で存在し、かつ
(a)0.890g/cm3未満の密度と;
(b)350°Fにおいて500cP〜40,000cPのブルックフィールド粘度と;
を有し;
さらに前記熱可塑性ブレンド組成物のメルトインデックスが、前記熱可塑性ポリオレフィン組成物のメルトインデックスに対して少なくとも10%増大されている、請求項1に記載の熱可塑性ブレンド組成物。 - A)前記熱可塑性ポリオレフィン組成物が、85〜97重量パーセント(熱可塑性ブレンド組成物の全重量を基準にして)の量で存在し;しかも
B)前記エクステンダーが、3〜15重量パーセント(熱可塑性ブレンド組成物の全重量を基準にして)の量で存在し、かつ
(a)0.880g/cm3未満の密度と;
(b)350°Fにおいて500cP〜40,000cPのブルックフィールド粘度と;
を有し;
さらに前記熱可塑性ブレンド組成物のメルトインデックスが、前記熱可塑性ポリオレフィン組成物のメルトインデックスに対して少なくとも15%増大されている、請求項1に記載の熱可塑性ブレンド組成物。 - 成分B)の前記均一分枝化実質的線状エチレン/C3〜20α−オレフィンインターポリマーが、均一分枝化実質的線状エチレン/1−オクテンインターポリマーである、請求項1ないし3のいずれかに記載の組成物。
- 成分B)の前記均一分枝化実質的線状エチレン/C3〜20α−オレフィンインターポリマーが、0.860〜0.880g/ccの範囲の密度を有する、請求項1ないし3のいずれかに記載の組成物。
- 請求項1又は4に記載の組成物を含む、フィルム。
- 請求項1又は4に記載の組成物を含む、繊維。
- 請求項1又は4に記載の組成物を含む、コーティング。
- 請求項1又は4に記載の組成物を含む、成形品。
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EP (1) | EP1549712B1 (ja) |
JP (1) | JP4988157B2 (ja) |
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-
2003
- 2003-09-26 JP JP2004541759A patent/JP4988157B2/ja not_active Expired - Lifetime
- 2003-09-26 US US10/529,919 patent/US8389634B2/en not_active Expired - Lifetime
- 2003-09-26 EP EP03754915A patent/EP1549712B1/en not_active Expired - Lifetime
- 2003-09-26 AU AU2003272714A patent/AU2003272714A1/en not_active Abandoned
- 2003-09-26 ES ES03754915T patent/ES2399364T3/es not_active Expired - Lifetime
- 2003-09-26 WO PCT/US2003/030434 patent/WO2004031292A2/en active Application Filing
Also Published As
Publication number | Publication date |
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JP2006501354A (ja) | 2006-01-12 |
WO2004031292A3 (en) | 2004-08-12 |
AU2003272714A8 (en) | 2004-04-23 |
EP1549712B1 (en) | 2012-11-28 |
US20060030667A1 (en) | 2006-02-09 |
US8389634B2 (en) | 2013-03-05 |
AU2003272714A1 (en) | 2004-04-23 |
ES2399364T3 (es) | 2013-03-27 |
WO2004031292A2 (en) | 2004-04-15 |
EP1549712A2 (en) | 2005-07-06 |
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