JP5197088B2 - Polypropylene stretched film - Google Patents
Polypropylene stretched film Download PDFInfo
- Publication number
- JP5197088B2 JP5197088B2 JP2008082660A JP2008082660A JP5197088B2 JP 5197088 B2 JP5197088 B2 JP 5197088B2 JP 2008082660 A JP2008082660 A JP 2008082660A JP 2008082660 A JP2008082660 A JP 2008082660A JP 5197088 B2 JP5197088 B2 JP 5197088B2
- Authority
- JP
- Japan
- Prior art keywords
- polypropylene
- stretched film
- film
- stretched
- pentad fraction
- 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.)
- Active
Links
- -1 Polypropylene Polymers 0.000 title claims description 68
- 239000004743 Polypropylene Substances 0.000 title claims description 67
- 229920001155 polypropylene Polymers 0.000 title claims description 67
- 239000000203 mixture Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 description 11
- 229920000642 polymer Polymers 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 8
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 3
- 239000000654 additive Substances 0.000 description 2
- 229920006378 biaxially oriented polypropylene Polymers 0.000 description 2
- 239000011127 biaxially oriented polypropylene Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002667 nucleating agent Substances 0.000 description 2
- 239000005022 packaging material Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- HZVFRKSYUGFFEJ-YVECIDJPSA-N (2r,3r,4s,5r)-7-phenylhept-6-ene-1,2,3,4,5,6-hexol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=CC1=CC=CC=C1 HZVFRKSYUGFFEJ-YVECIDJPSA-N 0.000 description 1
- VXNZUUAINFGPBY-UHFFFAOYSA-N 1-Butene Chemical compound CCC=C VXNZUUAINFGPBY-UHFFFAOYSA-N 0.000 description 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 1
- 238000001644 13C nuclear magnetic resonance spectroscopy Methods 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 239000013032 Hydrocarbon resin Substances 0.000 description 1
- 239000011954 Ziegler–Natta catalyst Substances 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- IAQRGUVFOMOMEM-UHFFFAOYSA-N butene Natural products CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 1
- 238000001460 carbon-13 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229920006270 hydrocarbon resin Polymers 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000012968 metallocene catalyst Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000012748 slip agent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Description
本発明は、特定のポリプロピレン組成物からなる二軸延伸フィルム等のポリプロピレン製延伸フィルムに関する。 The present invention relates to a stretched polypropylene film such as a biaxially stretched film made of a specific polypropylene composition.
二軸延伸ポリプロピレンフィルム等の延伸フィルムは、その優れた透明性、機械的強度、防湿性、剛性等を活かして包装材料をはじめ種々の用途に広く用いられている。また、ポリプロピレン二軸延伸フィルムの強度、透明度をさらに改良して更に広い用途への利用が期待される。 Stretched films such as biaxially stretched polypropylene films are widely used in various applications including packaging materials, taking advantage of their excellent transparency, mechanical strength, moisture resistance, rigidity, and the like. In addition, the strength and transparency of the polypropylene biaxially stretched film are further improved and expected to be used for a wider range of applications.
本発明は、ポリプロピレン二軸延伸フィルム等の延伸フィルムの機械的強度の向上および耐熱性の向上を目的とするものであり、特定の関係にある２成分のポリプロピレンを含む組成物からなる二軸延伸フィルムを用いることにこの目的を達成することができることを見いだしたものである。 The present invention aims to improve the mechanical strength and heat resistance of a stretched film such as a polypropylene biaxially stretched film, and is made of a composition comprising a two-component polypropylene having a specific relationship. It has been found that this purpose can be achieved by using a film.
本発明はペンタッド分率の値が９２％以上のポリプロピレンから選ばれる２種類のポリプロピレン成分を含み、両者のポリプロピレン成分のペンタッド分率の値の差が１％〜６％であるポリプロピレン組成物からなることを特徴とする少なくとも一方向に延伸された延伸フィルムに関する。
また、本発明は、ペンタッド分率の値が９２％から９８．５％のポリプロピレン成分（ａ）とペンタッド分率の値が９３％から９９．５％のポリプロピレン成分（ｂ）を含み、ポリプロピレン成分（ａ）とポリプロピレン成分（ｂ）のペンタッド分率の差が１％〜６％であるポリプロピレン組成物であることを特徴とする少なくとも一方向に延伸された延伸フィルムに関する。
さらに本発明の少なくとも一方向に延伸された延伸フィルムは、ポリプロピレン成分（ａ）が３０〜７０質量％およびポリプロピレン（ｂ）が７０〜３０質量％（（ａ）と（ｂ）の合計で１００質量％とする。）を含むポリプロピレン組成物からなることが好適である。
本発明によれば、引張弾性率がタテ方向２．５〜６ＧＰａであり、ヨコ方向４．８〜７ＧＰａである二軸延伸フィルムが提供される。
The present invention comprises a polypropylene composition comprising two types of polypropylene components selected from polypropylene having a pentad fraction value of 92% or more, and the difference in pentad fraction values between the two polypropylene components being 1% to 6 %. The present invention relates to a stretched film stretched in at least one direction.
The present invention also includes a polypropylene component (a) having a pentad fraction value of 92% to 98.5% and a polypropylene component (b) having a pentad fraction value of 93% to 99.5%. The present invention relates to a stretched film stretched in at least one direction, which is a polypropylene composition having a difference in pentad fraction between (a) and polypropylene component (b) of 1% to 6 %.
Further, in the stretched film stretched in at least one direction of the present invention, the polypropylene component (a) is 30 to 70% by mass and the polypropylene (b) is 70 to 30% by mass (the total of (a) and (b) is 100% by mass. It is preferable that it is made of a polypropylene composition containing
According to the present invention, a biaxially stretched film having a tensile modulus of 2.5 to 6 GPa in the vertical direction and 4.8 to 7 GPa in the horizontal direction is provided.
本発明によれば、従来の二軸延伸ポリプロピレンフィルム等の延伸フィルムに比べ強度、耐熱性に優れた二軸延伸フィルム等の延伸フィルムを得ることができる。 According to the present invention, a stretched film such as a biaxially stretched film excellent in strength and heat resistance can be obtained as compared with a stretched film such as a conventional biaxially stretched polypropylene film.
ポリプロピレン
少なくとも一方向に延伸された延伸フィルムのポリプロピレンは、特定の２成分を含むことを特徴としている。
これらのポリプロピレンの成分は、従来公知のポリプロピレンから選択して用いることができる。また、並列あるは直列の多段重合によってこれらの成分を調製しポリプロピレン組成物を調製することも行われる。
これらポリプロピレンの成分は、一般にポリプロピレンの名称で製造・販売されているプロピレンを主体とする重合体であり、通常、密度が０．８９０〜０．９３０ｇ／ｃｍ３、ＭＦＲ（ＡＳＴＭ Ｄ１２３８ 荷重２１６０ｇ、温度２３０℃）が０．００１〜６０ｇ／１０分、好ましくは０．５〜１０ｇ／１０分、更に好ましくは１〜５ｇ／１０分のプロピレンの単独重合体若しくはプロピレンと他の少量例えば、１質量％以下のα−オレフィン、例えばエチレン、ブテン、ヘキセン−１等との共重合体、あるいは単独重合体と共重合体との組成物である。
本発明の延伸フィルムは、ペンタッド分率の値が９２％以上のポリプロピレンから選ばれる２成分のポリプロピレンを含み、それら両者のポリプロピレン成分のペンタッド分率の値の差は１％〜６％、１％〜５％、中でも好ましくは１％〜４％、更に好ましくは２％〜４％のものが用いられる。
Polypropylene of a stretched film stretched in at least one direction of polypropylene is characterized by containing two specific components.
These polypropylene components can be selected from conventionally known polypropylenes. Moreover, these components are prepared by parallel or serial multistage polymerization to prepare a polypropylene composition.
The components of these polypropylenes are propylene-based polymers that are generally produced and sold under the name of polypropylene. Usually, the density is 0.890 to 0.930 g / cm 3 , MFR (ASTM D1238 load 2160 g, temperature 230 ° C.) of 0.001 to 60 g / 10 min, preferably 0.5 to 10 g / 10 min, more preferably 1 to 5 g / 10 min. It is a copolymer of the following α-olefins such as ethylene, butene, hexene-1, etc., or a composition of a homopolymer and a copolymer.
The stretched film of the present invention contains a two-component polypropylene selected from polypropylene having a pentad fraction value of 92% or more, and the difference in the pentad fraction values of the two polypropylene components is 1% to 6%, 1% -5%, preferably 1% -4%, more preferably 2% -4%.
なお、ポリプロピレンのペンタッド分率の値は、エイ・ザンベリー（Ａ．Ｚａｍｂｅｌｌｉ）がＭａｃｒｏｍｏｌｅｃｕｌｅｓ，６巻，９２５頁（１９７３）に発表した方法に従って、同位体炭素による核磁気共鳴スペクトル（１３Ｃ−ＮＭＲ）の測定によりポリプロピレン分子鎖中のペンタッド単位でのアイソタクチック分率である。
アイソタクチックのペンタッド分率は、プロピレンモノマー単位が５個連続してアイソタクチック結合したプロピレン単位の分率である。
但し、ピークの帰属に関しては、Ｍａｃｒｏｍｏｌｅｃｕｌｅｓ、８巻、６８７頁（１９７５）に記載の上記文献の訂正版に基づいて行った。
具体的には、１３Ｃ−ＮＭＲスペクトルのメチル炭素領域の全吸収ピーク中ｍｍｍｍピークの強度分率をアイソタクチックのペンタッド単位とする。
これらの特定の２成分を含むポリプロピレンとしては、ペンタッド分率の値が９２％から９８．５％のポリプロピレン成分（ａ）とペンタッド分率の値が９３％から９９．５％のポリプロピレン成分（ｂ）を含み、ポリプロピレン成分（ａ）とポリプロピレン成分（ｂ）のペンタッド分率の差が１％〜６％、１％〜５％、中でも好ましくは1％〜４％、更に好ましくは２％〜４％であるポリプロピレン組成物が好適である。
このペンタッド分率の差が小さいと延伸性の改良効果が不十分となり、差が大きくなり過ぎると優れた機械物性を維持できなくなる場合がある。
さらに本発明の延伸フィルムにおけるポリプロピレン成分（ａ）は３０〜７０質量％、中でも4０から６０質量％、およびポリプロピレン成分（ｂ）が７０〜３０質量％、中でも６０〜４０質量％（（ａ）と（ｂ）の合計で１００質量％とする。）であることが好適である。
本発明によれば、引張弾性率がタテ方向２．５〜６ＧＰａ、中でも３〜６ＧＰａであり、ヨコ方向４．８〜７ＧＰａ、中でも５〜７ＧＰａと優れた機械的物性を有する二軸延伸フィルムが提供される。
なお、本発明の延伸フィルムには、上記の二種類のポリプロピレン成分の他に延伸フィルムの優れた機械的物性を損なわない範囲で、他のポリマー、その他の添加剤を配合してもよい。
例えば、さらにアイソタクシティシティの異なるポリプロピレンを併用することも行われるが、その場合は、さらに併用されるポリプロピレン成分はその目的に応じて上記のポリプロピレン成分（ａ）あるいはポリプロピレン成分（ｂ）のいずれかの追加分として加算して、上記の規定の範囲内であればよい。
これらのポリプロピレンの各成分は、ラメラ状その他に配置されていてもよいが、好ましくはギロイド状等のミクロ構造となるように混練されることが望ましい。
本発明の延伸フィルムのポリプロピレン組成物のペンタッド分率は９２％以上、中でも９３％、その中でも９５％以上であることが望ましい。
更に本発明の延伸フィルムには、必要に応じて石油樹脂などの炭化水素樹脂、高メルトテンションのポリプロピレン、核剤等を配合することが行われる。
In addition, the value of the pentad fraction of polypropylene is determined by the nuclear magnetic resonance spectrum (13C-NMR) of isotope carbon according to the method published by A. Zambelli in Macromolecules, Vol. 6, page 925 (1973). It is an isotactic fraction of pentad units in a polypropylene molecular chain by measurement.
The isotactic pentad fraction is a fraction of propylene units in which five propylene monomer units are isotactically bonded in succession.
However, peak assignment was performed based on a corrected version of the above-mentioned document described in Macromolecules, Vol. 8, page 687 (1975).
Specifically, the intensity fraction of the mmmm peak in the total absorption peak in the methyl carbon region of the 13C-NMR spectrum is defined as an isotactic pentad unit.
As the polypropylene containing these two specific components, a polypropylene component (a) having a pentad fraction value of 92% to 98.5% and a polypropylene component (b) having a pentad fraction value of 93% to 99.5% ), And the difference in the pentad fraction of the polypropylene component (a) and the polypropylene component (b) is 1% to 6%, 1% to 5%, preferably 1% to 4%, more preferably 2% to 4 % Polypropylene composition is preferred.
If the difference in the pentad fraction is small, the effect of improving stretchability is insufficient, and if the difference is too large, excellent mechanical properties may not be maintained.
Furthermore, the polypropylene component (a) in the stretched film of the present invention is 30 to 70% by mass, especially 40 to 60% by mass, and the polypropylene component (b) is 70 to 30% by mass, especially 60 to 40% by mass ((a)). (The sum of (b) is 100% by mass.)
According to the present invention, a biaxially stretched film having excellent mechanical properties such as a tensile modulus of 2.5 to 6 GPa in the vertical direction, especially 3 to 6 GPa, and a horizontal direction of 4.8 to 7 GPa, especially 5 to 7 GPa. Provided.
In addition, you may mix | blend another polymer and another additive with the stretched film of this invention in the range which does not impair the mechanical property which was excellent in the stretched film other than said two types of polypropylene components.
For example, a polypropylene having different isotacticity may be used in combination. In this case, the polypropylene component used in combination may be either the polypropylene component (a) or the polypropylene component (b) depending on the purpose. It may be added as the additional amount and be within the above-mentioned prescribed range.
Each component of these polypropylenes may be arranged in a lamellar shape or the like, but is preferably kneaded so as to have a microstructure such as a gilloid shape.
The pentad fraction of the polypropylene composition of the stretched film of the present invention is preferably 92% or more, particularly 93%, and more preferably 95% or more.
Further, the stretched film of the present invention is blended with a hydrocarbon resin such as petroleum resin, a high melt tension polypropylene, a nucleating agent, or the like, if necessary.
本発明の延伸フィルムのポリプロピレンには、チーグラー・ナッタ系触媒に限らず、シングルサイト触媒（メタロセン触媒等）を始め種々公知の触媒を用いて重合されたものを用いることができる。
また、ポリプロピレン組成物には、耐熱安定剤、耐候安定剤、紫外線吸収剤、滑剤、スリップ剤、ベンジリデンソルビトール等の核剤、ブロッキング防止剤、帯電防止剤、防曇剤、顔料、染料、無機または有機の充填剤等の通常、ポリオレフィンに用いる各種添加剤を本発明の目的を損なわない範囲で添加しておいてもよい。
The polypropylene of the stretched film of the present invention is not limited to a Ziegler-Natta catalyst, but can be polymerized using various known catalysts such as a single site catalyst (metallocene catalyst or the like).
In addition, polypropylene compositions include heat stabilizers, weathering stabilizers, ultraviolet absorbers, lubricants, slip agents, nucleating agents such as benzylidene sorbitol, antiblocking agents, antistatic agents, antifogging agents, pigments, dyes, inorganic or Various additives usually used for polyolefin, such as organic fillers, may be added within a range not impairing the object of the present invention.
少なくとも一方向に延伸されたフィルム
本発明に用いられる少なくとも一方向に延伸された延伸フィルムには、タテ方向に一軸延伸された延伸フィルム、ヨコ方向に一軸延伸された延伸フィルム、逐次二軸延伸された延伸フィルム、同時二軸延伸フィルム等がある。
タテ方向（ＭＤ方向）に一軸延伸された延伸フィルムを成形する方法としては従来から知られている方法を採用することができる。一般には未延伸フィルムのタテ方向だけをロール、テンター等を用いて延伸する方法が採用される。このタテ方向（ＭＤ方向）の延伸倍率は通常２〜６倍であり、一軸延伸フィルムの厚みは通常２０〜８００ミクロン（μｍ）である。
ヨコ方向（ＴＤ方向）に一軸延伸された延伸フィルムを成形する方法としては従来から知られている方法を採用することができる。一般には未延伸フィルムのヨコ方向（ＴＤ方向）だけをテンターを用いて延伸する方法が採用される。このヨコ方向（ＴＤ方向）の延伸倍率は通常１．５倍〜１５倍であり、一軸延伸フィルムの厚みは通常２０〜８００ミクロン（μｍ）である。
また、逐次二軸延伸する成形方法には従来から知られている方法を採用することができる。一般にはタテ方向（ＭＤ方向）の延伸倍率は２〜７倍、ヨコ方向（ＴＤ方向）の延伸倍率は３〜１３倍である。逐次二軸延伸されたフィルムの厚みは通常２０〜５００ミクロン（μｍ）である。
同時二軸延伸されたフィルムは、従来公知の種々の方法で成形することができる。その延伸倍率は、タテ方向（ＭＤ）が通常７〜１２倍、好ましくは８〜１１倍、ヨコ方向（ＴＤ）が通常７〜１２倍、好ましくは８〜１１倍の範囲である。延伸の際のテンター内温度は通常１４０〜２００℃、好ましくは１５０〜１９０℃の範囲である。同時二軸延伸フィルムの厚さは通常３０〜５００ミクロン（μｍ）程度である。
これら延伸成形においては、通常の逐次二軸延伸あるいは同時二軸延伸を行った後、さらに引き続いて、タテ方向に延伸したり、ヨコ方向に延伸することも必要に応じて行われる。また、タテ方向を二段で延伸した後に、ヨコ方向に延伸することも行われる。さらに同時二軸延伸を行った後に、さらにタテ方向に再度延伸したり、予めタテ方向に延伸した後に同時二軸延伸を行うことも行われる。
Film stretched in at least one direction The stretched film stretched in at least one direction used in the present invention includes a stretched film uniaxially stretched in the vertical direction, a stretched film uniaxially stretched in the horizontal direction, and sequentially biaxially stretched. Stretched films and simultaneous biaxially stretched films.
As a method of forming a stretched film uniaxially stretched in the vertical direction (MD direction), a conventionally known method can be employed. Generally, a method of stretching only the vertical direction of an unstretched film using a roll, a tenter or the like is employed. The draw ratio in the vertical direction (MD direction) is usually 2 to 6 times, and the thickness of the uniaxially stretched film is usually 20 to 800 microns (μm).
As a method for forming a stretched film uniaxially stretched in the horizontal direction (TD direction), a conventionally known method can be employed. In general, a method of stretching only the horizontal direction (TD direction) of an unstretched film using a tenter is employed. The stretch ratio in the horizontal direction (TD direction) is usually 1.5 to 15 times, and the thickness of the uniaxially stretched film is usually 20 to 800 microns (μm).
In addition, a conventionally known method can be adopted as a forming method for successive biaxial stretching. Generally, the draw ratio in the vertical direction (MD direction) is 2 to 7 times, and the draw ratio in the horizontal direction (TD direction) is 3 to 13 times. The thickness of the successively biaxially stretched film is usually 20 to 500 microns (μm).
The simultaneously biaxially stretched film can be formed by various conventionally known methods. The stretching ratio is usually in the range of 7 to 12 times in the vertical direction (MD), preferably 8 to 11 times, and 7 to 12 times in the horizontal direction (TD), preferably 8 to 11 times. The temperature in the tenter during stretching is usually in the range of 140 to 200 ° C, preferably 150 to 190 ° C. The thickness of the simultaneous biaxially stretched film is usually about 30 to 500 microns (μm).
In these stretch moldings, after carrying out normal sequential biaxial stretching or simultaneous biaxial stretching, further stretching in the vertical direction or stretching in the horizontal direction is performed as necessary. Moreover, after extending | stretching a length direction in two steps, extending | stretching to a horizontal direction is also performed. Furthermore, after performing simultaneous biaxial stretching, it is further stretched again in the vertical direction, or simultaneous biaxial stretching is performed after previously stretching in the vertical direction.
一般には、同時二軸延伸等の延伸の際のフィルムの中心付近の温度は、１５０℃〜１９０℃の範囲が通常であり、フィルムの両端の部分（テンタークリップで把持される部分）の温度はその温度より約１℃〜約１００℃低い温度にコントロールすることが望ましい
次に実施例を挙げて本発明を更に具体的に説明するが、本発明はその要旨を越えない限りこれらの実施例に制約されるものではない。
Generally, the temperature in the vicinity of the center of the film at the time of stretching such as simultaneous biaxial stretching is usually in the range of 150 ° C. to 190 ° C., and the temperature at both ends of the film (the portion gripped by the tenter clip) is It is desirable to control the temperature to be lower by about 1 ° C. to about 100 ° C. than the temperature. The present invention will be described in more detail with reference to the following examples. It is not restricted.
なお、物性値などは、以下の評価方法により求めた。
（１）弾性率（ＭＰａ）
二軸延伸ポリプロピレンフィルムからタテ方向（ＭＤ）及びヨコ方向（ＴＤ）に短冊状フィルム片（長さ：１５０ｍｍ、幅：１５ｍｍ）を切出し、引張り試験機［（株）オリエンテック社製テンシロン万能試験機ＲＴＣ-１２２５］を用い、チャック間距離：１００ｍｍ、クロスヘッドスピード：５ｍｍ／分の条件で引張試験を行い、弾性率（ＭＰａ）を求めた。
The physical property values were determined by the following evaluation methods.
(1) Elastic modulus (MPa)
A strip-shaped film piece (length: 150 mm, width: 15 mm) is cut out from the biaxially stretched polypropylene film in the vertical direction (MD) and the horizontal direction (TD), and a tensile tester [Tensilon Universal Tester manufactured by Orientec Co., Ltd.] RTC-1225] was used, and a tensile test was performed under the conditions of a distance between chucks: 100 mm and a crosshead speed: 5 mm / min to obtain an elastic modulus (MPa).
実施例１ないし５
逐次二軸延伸ポリプロピレンフィルムの製造
プライムポリマー社製Ｆ３００ＳＶ［密度：９１０Ｋｇ／ｍ３、ＭＦＲ：３．０ｇ／１０分（２３０℃）、ペンタッド分率９８％］５０質量％及びプライムポリマー社製Ｆ１０２Ｗ［密度：９１０Ｋｇ／ｍ３、ＭＦＲ：２ｇ／１０分（２３０℃）、ペンタッド分率９５％］５０質量％を用い、スクリュー押出機で溶融押出し、逐次二軸延伸フィルム成形装置を用い、テンター（予熱温度：１９３℃、延伸温度：１６４℃及び熱セット温度：１７０℃並びに緩和率；タテ方向：４％及びヨコ方向：４％）を用い、タテ方向（ＭＤ）及びヨコ方向に表１に示す倍率で延伸して、厚さ３０ミクロン（μｍ）の逐次二軸延伸ポリプロピレンフィルムを得た。
結果を表１に示す。
Examples 1 to 5
Production of sequential biaxially oriented polypropylene film F300SV manufactured by Prime Polymer [density: 910 Kg / m 3, MFR: 3.0 g / 10 min (230 ° C.), pentad fraction 98%] 50% by mass and F102W manufactured by Prime Polymer [density : 910 Kg / m 3, MFR: 2 g / 10 min (230 ° C., pentad fraction 95%) 50% by mass, melt extrusion with a screw extruder, and using a sequential biaxially stretched film forming apparatus, a tenter (preheating temperature: 193 ° C., stretching temperature: 164 ° C. and heat setting temperature: 170 ° C. and relaxation rate; vertical direction: 4% and horizontal direction: 4%), stretching in the vertical direction (MD) and horizontal direction at the magnification shown in Table 1 Thus, a sequential biaxially stretched polypropylene film having a thickness of 30 microns (μm) was obtained.
The results are shown in Table 1.
比較例 １および２
原料のポリプロピレンとしてプライムポリマー社製Ｆ３００ＳＶのみ（比較例１）あるいは、プライムポリマー社製Ｆ１０２Ｗのみ（比較例２）を用いる以外は実施例１と同様にして行った。
結果を表２に示す。
Comparative Examples 1 and 2
It was carried out in the same manner as Example 1 except that only F300SV manufactured by Prime Polymer (Comparative Example 1) or only F102W manufactured by Prime Polymer (Comparative Example 2) was used as the raw material polypropylene.
The results are shown in Table 2.
表 １
項 目 単位 実施例１ 実施例２ 実施例３ 実施例４ 実施例５
延伸
倍率
タテ 倍 ５ ６ ７ ７ ７．５
ヨコ 倍 １２ １２．６ ７．６ １０ ７．７
弾性率
タテ ＧＰａ ２．７ ２．６ ２．８ ２．９ ２．７
ヨコ ＧＰａ ４．８ ５．３ ５．２ ６．０ ４．９
表 ２
項 目 単位 比較例１ 比較例２
延伸
倍率
タテ 倍 ５ ５
ヨコ 倍 １２ １２
弾性率
タテ ＧＰａ ２．４ ２．４
ヨコ ＧＰａ ４．８ ４．２
本発明の延伸フィルムは、上記の表１に示すように高倍率の延伸が可能となり、その結果高弾性率の物性を有する延伸フィルムが得られる。
Table 1
Item Unit Example 1 Example 2 Example 3 Example 4 Example 5
Stretching ratio Vertical times 5 6 7 7 7.5
Horizontal times 12 12.6 7.6 10 7.7
Elastic modulus
Vertical GPa 2.7 2.6 2.6 2.8 2.9 2.7
Horizontal GPa 4.8 5.3 5.2 6.0 4.9
Table 2
Item Unit Comparative Example 1 Comparative Example 2
Stretch ratio Vertical times 5 5
Horizontal times 12 12
Elastic modulus
Vertical GPa 2.4 2.4
Horizontal GPa 4.8 4.2
The stretched film of the present invention can be stretched at a high magnification as shown in Table 1 above, and as a result, a stretched film having physical properties with a high elastic modulus is obtained.
実施例６ないし８
逐次二軸延伸ポリプロピレンフィルムの製造
プライムポリマー社製Ｆ３００ＳＶ［密度：９１０Ｋｇ／ｍ３、ＭＦＲ：３．０ｇ／１０分（２３０℃）、ペンタッド分率９８％］５０質量％及びプライムポリマー社製Ｆ１１３Ｇ［密度：９１０Ｋｇ／ｍ３、ＭＦＲ：３ｇ／１０分（２３０℃）、ペンタッド分率９２％］５０質量％を用い、スクリュー押出機で溶融押出し、逐次二軸延伸フィルム成形装置を用い、テンター（予熱温度：１８８℃、延伸温度：１６６℃及び熱セット温度：１７０℃並びに緩和率；タテ方向：４％及びヨコ方向：４％）を用い、タテ方向（ＭＤ）及びヨコ方向に表３に示す倍率で延伸して、厚さ３０ミクロン（μｍ）の逐次二軸延伸ポリプロピレンフィルムを得た。
結果を表３に示す。
Examples 6 to 8
Production of sequential biaxially oriented polypropylene film F300SV manufactured by Prime Polymer [density: 910 Kg / m 3, MFR: 3.0 g / 10 min (230 ° C.), pentad fraction 98%] 50% by mass and F113G manufactured by Prime Polymer [density : 910 Kg / m3, MFR: 3 g / 10 min (230 ° C), pentad fraction 92%] 50% by mass, melt extrusion with a screw extruder, and using a sequential biaxially stretched film forming apparatus, a tenter (preheating temperature: 188 ° C., stretching temperature: 166 ° C. and heat set temperature: 170 ° C. and relaxation rate; vertical direction: 4% and horizontal direction: 4%), stretched in the vertical direction (MD) and horizontal direction at the magnification shown in Table 3 Thus, a sequential biaxially stretched polypropylene film having a thickness of 30 microns (μm) was obtained.
The results are shown in Table 3.
比較例 ３
原料のポリプロピレンとしてプライムポリマー社製Ｆ１１３Ｇのみ（比較例３）を用いる以外は実施例６と同様にして行った。
結果を表３に示す。
Comparative Example 3
The same procedure as in Example 6 was performed except that only F113G manufactured by Prime Polymer Co. (Comparative Example 3) was used as the raw material polypropylene.
The results are shown in Table 3.
表 ３
項 目 単位 実施例６ 実施例７ 実施例８ 比較例３
延伸倍率
タテ 倍 ５ ６ ７ ６
ヨコ 倍 １１ １１ １１ １０
弾性率
タテ ＧＰａ ２．７ ２．７ ３．３ ２．３
ヨコ ＧＰａ ５．３ ５．３ ６．３ ５．１
Table 3
Item Unit Example 6 Example 7 Example 8 Comparative Example 3
Stretch ratio
Vertical times 5 6 7 6
Horizontal times 11 11 11 10
Elastic modulus
Vertical GPa 2.7 2.7 3.3 2.3
Horizontal GPa 5.3 5.3 6.3 5.1
本発明によれば、延伸性に優れたポリプロピレン組成物により機械的物性に優れ、耐熱性に優れた延伸フィルムを得ることができ、包装材料としてばかりでなく、離型フィルム等の種々の産業材用途への利用が可能である。 According to the present invention, a stretched film having excellent mechanical properties and heat resistance can be obtained by a polypropylene composition having excellent stretchability, and various industrial materials such as a release film as well as a packaging material can be obtained. It can be used for various purposes.
Claims (4)
The biaxially stretched film according to any one of claims 1 to 3, wherein a tensile elastic modulus is 2.5 to 6 GPa in the vertical direction and 4.8 to 7 GPa in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008082660A JP5197088B2 (en) | 2008-03-27 | 2008-03-27 | Polypropylene stretched film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008082660A JP5197088B2 (en) | 2008-03-27 | 2008-03-27 | Polypropylene stretched film |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2009235228A JP2009235228A (en) | 2009-10-15 |
| JP5197088B2 true JP5197088B2 (en) | 2013-05-15 |
Family
ID=41249589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008082660A Active JP5197088B2 (en) | 2008-03-27 | 2008-03-27 | Polypropylene stretched film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5197088B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7301504B2 (en) * | 2018-07-06 | 2023-07-03 | 三井化学東セロ株式会社 | Food packaging film and food package |
| JP7321682B2 (en) * | 2018-07-06 | 2023-08-07 | 三井化学東セロ株式会社 | Food packaging film and food package |
| JP2023057307A (en) | 2021-10-11 | 2023-04-21 | フタムラ化学株式会社 | Stretched polypropylene film |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3330413B2 (en) * | 1993-02-24 | 2002-09-30 | 三井化学株式会社 | Polypropylene composition and method for producing the same |
| JP3434631B2 (en) * | 1995-10-13 | 2003-08-11 | 三井化学株式会社 | Polypropylene resin composition for automotive interior |
| JP2002128913A (en) * | 2000-10-27 | 2002-05-09 | Toray Ind Inc | Biaxially oriented polypropylene film |
| JP4798592B2 (en) * | 2001-03-22 | 2011-10-19 | 株式会社プライムポリマー | Polypropylene resin composition and biaxially stretched film |
| JP2003192851A (en) * | 2001-12-26 | 2003-07-09 | Idemitsu Petrochem Co Ltd | Polypropylene resin |
| JP4059803B2 (en) * | 2003-04-21 | 2008-03-12 | 株式会社プライムポリマー | Polypropylene resin composition and biaxially stretched film |
-
2008
- 2008-03-27 JP JP2008082660A patent/JP5197088B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2009235228A (en) | 2009-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6241039B2 (en) | Stretched polypropylene film | |
| US10184043B2 (en) | Polypropylene film with improved balance of mechanical properties | |
| JP7409459B2 (en) | Polypropylene laminated film | |
| JP6554765B2 (en) | Polypropylene laminated stretched film | |
| EP3256518B1 (en) | Thermoplastic polymer compositions | |
| BR112015021431B1 (en) | compositions of polypropylene reinforced with bamboo fibers, method for the preparation of such compositions, use of such compositions and article comprising such compositions | |
| US20140336327A1 (en) | Polyolefin masterbatch based on grafted polypropylene and metallocene catalyzed polypropylene | |
| JP5197088B2 (en) | Polypropylene stretched film | |
| JP7061003B2 (en) | Propylene resin composition and injection molded product | |
| TW201412778A (en) | Polypropylene film | |
| JP2012229303A (en) | Propylenic resin composition, and injection molding thereof | |
| JP6948977B2 (en) | Propylene resin composition and injection molded product | |
| JP2021161381A (en) | Biaxially stretched film, multilayer film, packaging bag, and manufacturing method of biaxially stretched film | |
| WO2022091549A1 (en) | Propylene polymer composition, biaxially stretched film and packaging bag | |
| JP7397642B2 (en) | Polypropylene multilayer stretched film and its manufacturing method | |
| JP5135008B2 (en) | Method for producing biaxially stretched film | |
| JPH05339448A (en) | Polypropylene-polybutylene composition | |
| RU2736502C1 (en) | Method of producing an nonoriented film with improved barrier properties with respect to oxygen | |
| JP6826595B2 (en) | Propylene resin composition and its injection molded product | |
| JP5508501B2 (en) | Method for producing biaxially stretched film | |
| JP6446882B2 (en) | Biaxially stretched polypropylene film | |
| KR20190124202A (en) | Polyolefin Compositions for Non-Oriented Films with Improved Oxygen Barrier Properties | |
| JP2009214507A (en) | Method for producing biaxially oriented film | |
| JP2009214508A (en) | Method for producing biaxially oriented film | |
| JP2004059652A (en) | Polypropylene resin composition and polypropylene stretched film improved in stretchability and its manufacturing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20110203 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20120411 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120420 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120530 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130204 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130205 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20160215 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5197088 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |