JP2018501323A - 繊維製造用ポリオレフィンペレットおよびこれを含む繊維 - Google Patents
繊維製造用ポリオレフィンペレットおよびこれを含む繊維 Download PDFInfo
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- JP2018501323A JP2018501323A JP2017515788A JP2017515788A JP2018501323A JP 2018501323 A JP2018501323 A JP 2018501323A JP 2017515788 A JP2017515788 A JP 2017515788A JP 2017515788 A JP2017515788 A JP 2017515788A JP 2018501323 A JP2018501323 A JP 2018501323A
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- polyolefin
- molecular weight
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- 238000009826 distribution Methods 0.000 claims abstract description 36
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- 238000004519 manufacturing process Methods 0.000 claims description 18
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- 238000005266 casting Methods 0.000 claims description 6
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- CPOFMOWDMVWCLF-UHFFFAOYSA-N methyl(oxo)alumane Chemical compound C[Al]=O CPOFMOWDMVWCLF-UHFFFAOYSA-N 0.000 description 3
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- ORYGRKHDLWYTKX-UHFFFAOYSA-N trihexylalumane Chemical compound CCCCCC[Al](CCCCCC)CCCCCC ORYGRKHDLWYTKX-UHFFFAOYSA-N 0.000 description 1
- JOJQVUCWSDRWJE-UHFFFAOYSA-N tripentylalumane Chemical compound CCCCC[Al](CCCCC)CCCCC JOJQVUCWSDRWJE-UHFFFAOYSA-N 0.000 description 1
- JQPMDTQDAXRDGS-UHFFFAOYSA-N triphenylalumane Chemical compound C1=CC=CC=C1[Al](C=1C=CC=CC=1)C1=CC=CC=C1 JQPMDTQDAXRDGS-UHFFFAOYSA-N 0.000 description 1
- CNWZYDSEVLFSMS-UHFFFAOYSA-N tripropylalumane Chemical compound CCC[Al](CCC)CCC CNWZYDSEVLFSMS-UHFFFAOYSA-N 0.000 description 1
- WSITXTIRYQMZHM-UHFFFAOYSA-N tris(4-methylphenyl)alumane Chemical compound C1=CC(C)=CC=C1[Al](C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 WSITXTIRYQMZHM-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Abstract
Description
本出願は、2014年12月10日付の韓国特許出願第10−2014−0177145号および2015年12月9日付の韓国特許出願第10−2015−0175284号に基づく優先権の利益を主張し、当該韓国特許出願の文献に開示された全ての内容は本明細書の一部として含まれる。
本発明は、繊維製造用ポリオレフィンペレットおよびこれを含む繊維に関する。より具体的には、高分子量および狭い分子量分布を示し、ゲルの形成が減少して高強度を有し、延伸特性に優れ、高配向が可能なポリオレフィンペレットに関し、これを用いたマルチフィラメント作業時の延伸比と結晶化度が高く、多様な産業用製品に適用可能である。
密度が0.94〜0.96g/cm3であり;
分子量分布(PDI)は2.0〜3.0であり;
溶融指数(MI:190℃、2.16kg)が0.1〜1.5g/10minであり;
190℃でキャスティングフイルムに製造した時、粒径が250μm以上650μm未満のゲル(gel)の個数が単位面積(m2)あたり50個未満である、ポリオレフィンペレット(pellet)を提供する。
3つのRは、互いに同一または異なっていてもよいし、それぞれ独立に、炭素数1〜20の炭化水素である。
M1は、4族遷移金属であり;
Cp1およびCp2は、互いに同一または異なり、それぞれ独立に、シクロペンタジエニル、インデニル、4,5,6,7−テトラヒドロ−1−インデニル、およびフルオレニルラジカルからなる群より選択されたいずれか1つであり、これらは炭素数1〜20の炭化水素で置換されていてもよいし;
R1およびR2は、互いに同一または異なり、それぞれ独立に、水素、C1〜C20のアルキル、C1〜C10のアルコキシ、C2〜C20のアルコキシアルキル、C6〜C20のアリール、C6〜C10のアリールオキシ、C2〜C20のアルケニル、C7〜C40のアルキルアリール、C7〜C40のアリールアルキル、C8〜C40のアリールアルケニル、またはC2〜C10のアルキニルであり;
Z1は、ハロゲン原子、C1〜C20のアルキル、C2〜C10のアルケニル、C7〜C40のアルキルアリール、C7〜C40のアリールアルキル、C6〜C20のアリール、置換されているか置換されていないC1〜C20のアルキリデン、置換されているか置換されていないアミノ基、C2〜C20のアルキルアルコキシ、またはC7〜C40のアリールアルコキシであり;
nは、1または0であり;
M2は、4族遷移金属であり;
Cp3は、シクロペンタジエニル、インデニル、4,5,6,7−テトラヒドロ−1−インデニル、およびフルオレニルラジカルからなる群より選択されたいずれか1つであり、これらは炭素数1〜20の炭化水素で置換されていてもよいし;
R3は、水素、C1〜C20のアルキル、C1〜C10のアルコキシ、C2〜C20のアルコキシアルキル、C6〜C20のアリール、C6〜C10のアリールオキシ、C2〜C20のアルケニル、C7〜C40のアルキルアリール、C7〜C40のアリールアルキル、C8〜C40のアリールアルケニル、またはC2〜C10のアルキニルであり;
Z2は、ハロゲン原子、C1〜C20のアルキル、C2〜C10のアルケニル、C7〜C40のアルキルアリール、C7〜C40のアリールアルキル、C6〜C20のアリール、置換されているか置換されていないC1〜C20のアルキリデン、置換されているか置換されていないアミノ基、C2〜C20のアルキルアルコキシ、またはC7〜C40のアリールアルコキシであり;
Bは、Cp3R3環とJとを架橋結合させる、炭素、ゲルマニウム、ケイ素、リン、または窒素原子含有ラジカルのうちの1つ以上またはこれらの組み合わせであり;
Jは、NR4、O、PR4、およびSからなる群より選択されたいずれか1つであり、前記R4は、C1〜C20のアルキル、アリール、置換されたアルキル、または置換されたアリールである。
第1メタロセン触媒の製造
合成例1:[tBu−O−(CH 2 ) 6 −C 5 H 4 ] 2 ZrCl 2 の合成
6−クロロヘキサノール(6−chlorohexanol)を用いて、文献(Tetrahedron Lett.2951(1988))に提示された方法でt−Butyl−O−(CH2)6−Clを製造し、これにNaCpを反応させてt−Butyl−O−(CH2)6−C5H5を得た(収率60%、b.p.80℃/0.1mmHg)。また、−78℃でt−Butyl−O−(CH2)6−C5H5をTHFに溶かし、ノルマルブチルリチウム(n−BuLi)をゆっくり加えた後、室温に昇温させた後、8時間反応させた。その溶液を、再び−78℃でZrCl4(THF)2(1.70g、4.50mmol)/THF(30mL)のサスペンション(suspension)溶液にすでに合成されたリチウム塩(lithium salt)溶液をゆっくり加えて、室温で6時間さらに反応させた。全ての揮発性物質を真空乾燥し、得られたオイル性液体物質にヘキサン(hexane)溶媒を加えてろ過した。ろ過した溶液を真空乾燥した後、ヘキサンを加えて、低温(−20℃)で沈殿物を誘導した。得られた沈殿物を低温でろ過して、白色固体形態の[tBu−O−(CH2)6−C5H4]2ZrCl2化合物を得た(収率92%)。
合成例2:
[methyl(6−t−buthoxyhexyl)silyl(η5−tetramethylCp)(t−Butylamido)]TiCl 2 の合成
常温で50gのMg(s)を10L反応器に加えた後、THF300mLを加えた。I2を0.5g程度加えた後、反応器の温度を50℃に維持した。反応器の温度が安定化した後、250gの6−t−ブトキシヘキシルクロライド(6−t−buthoxyhexyl chloride)を、注入ポンプ(feeding pump)を用いて5mL/minの速度で反応器に加えた。6−t−ブトキシヘキシルクロライドを加えるに伴い、反応器の温度が4〜5℃程度上昇するのを観察することができた。継続して6−t−ブトキシヘキシルクロライドを加えながら12時間撹拌した。反応12時間後、黒色の反応溶液を得ることができた。生成された黒色の溶液2mLを取った後、水を加えて有機層を得て、1H−NMRにより6−t−ブトキシヘキサン(6−t−buthoxyhexane)を確認することができ、6−t−ブトキシヘキサンからグリニャール反応がうまく進行したことが分かった。かくして、6−t−ブトキシヘキシルマグネシウムクロライド(6−t−buthoxyhexyl magnesium chloride)を合成した。
製造例1
シリカ(Grace Davison社製XPO2412)を800℃で15時間真空を加えた状態で脱水した。シリカ1.0gを3つのガラス反応器に入れて、これにヘキサン10mLを入れて、前記合成例1で得られた第1メタロセン化合物0.1gが溶けているヘキサン溶液を10mLずつ入れた後、90℃で4時間撹拌して反応させた。反応が終わった後、撹拌を止めて、ヘキサンを層分離して除去した後、20mLのヘキサン溶液で3回洗浄した後、減圧しヘキサンを除去して固体粉末を得た。これにトルエン溶液中に12mmolのアルミニウムが入っているメチルアルミノキサン(MAO)溶液を加えて、40℃で撹拌してゆっくり反応させた。その後、十分な量のトルエンで洗浄して、反応しないアルミニウム化合物を除去した後、50℃で減圧して、残っているトルエンを除去した。
実施例1
前記製造例1で得られた混成担持メタロセン触媒を単一ループスラリー重合工程に投入して、ポリオレフィンを製造した。
前記実施例1で製造されたポリオレフィンペレットに対して、マルチフィラメント製造時にDraw−Ratio延伸比を20倍で行ったことを除けば、実施例1と同様の工程を繰り返した。
前記実施例1で製造されたポリオレフィンペレットに対して、マルチフィラメント製造時にDraw−Ratio延伸比を18倍で行ったことを除けば、実施例1と同様の工程を繰り返した。
前記実施例1で製造されたポリオレフィンペレットに対して、マルチフィラメント製造時にDraw−Ratio延伸比を16倍で行ったことを除けば、実施例1と同様の工程を繰り返した。
前記実施例1において、ヒドロカルビルアルミニウムスカベンジャーのトリエチルアルミニウム(triethylaluminium)と反応器内の水分とのモル比を0.5:1とし、前記ヒドロカルビルアルミニウムスカベンジャーの濃度は0.01mMに維持し、水素ガスを20mL/minの速度で投入したことを除けば、実施例1と同様の工程でポリオレフィンを製造した。
前記実施例1におけるメタロセン触媒の代わりに、チーグラー・ナッタ触媒(マグネシウム担体に担持され、TiC4活性点を有するチーグラー・ナッタ)を用いて重合したポリオレフィンを入手してマルチフィラメント組成物を製造したことを除けば、実施例1と同様の工程を行った。
前記実施例1〜4および比較例1〜2の樹脂または繊維に対して次の方法で物性を評価して、その結果を表2に示した。
3)溶融指数(MI、2.16kg/10min):測定温度190℃、ASTM D1238
4)分子量、分子量分布:測定温度160℃、ゲル透過クロマトグラフィー(GPC)を用いて、数平均分子量、重量平均分子量、Z平均分子量を測定した。分子量分布は、重量平均分子量と数平均分子量との比で示した。
Claims (11)
- 密度が0.94〜0.96g/cm3であり;
分子量分布(PDI)は2.0〜3.0であり;
溶融指数(MI:190℃、2.16kg)は0.1〜1.5g/10minであり;
190℃でキャスティングフイルムに製造した時、粒径が250μm以上650μm未満のゲル(gel)の個数が単位面積(m2)あたり50個未満である、繊維製造用ポリオレフィンペレット。 - 重量平均分子量が10万〜30万g/molである、請求項1に記載の繊維製造用ポリオレフィンペレット。
- 前記ポリオレフィンは、メタロセン触媒、ヒドロカルビルアルミニウムスカベンジャー、および水素ガスの下、オレフィン単量体を重合して得られたものである、請求項1に記載の繊維製造用ポリオレフィンペレット。
- 前記ヒドロカルビルアルミニウムスカベンジャーおよび反応器内の水分(H2O)のモル比率は、0.8:1〜1.2:1である、請求項3に記載の繊維製造用ポリオレフィンペレット。
- 前記水素ガスの投入量は、30〜90L/minである、請求項3に記載の繊維製造用ポリオレフィンペレット。
- 前記メタロセン触媒は、担体に互いに異なる2種以上のメタロセン触媒が担持された混成担持メタロセン触媒である、請求項3に記載の繊維製造用ポリオレフィンペレット。
- 請求項1〜6のいずれか1項に記載のポリオレフィンを含む繊維。
- ASTM D638により測定した強度(tenacity)が9〜20gf/denierである、請求項7に記載の繊維。
- 延伸比(draw ratio、RPM2/RPM1)が10〜24倍である、請求項7に記載の繊維。
- 請求項8に記載の繊維を含むマルチフィラメント材料。
- 前記マルチフィラメント材料は、ジオグリッド、繊維蛇籠、保護手袋、海洋用ロープ、漁網、または産資用織物である、請求項10に記載のマルチフィラメント材料。
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