JP5258565B2 - 液体吸収に対して抵抗性である可撓性防弾性複合材料、その製造方法、およびそれから製造された物品 - Google Patents
液体吸収に対して抵抗性である可撓性防弾性複合材料、その製造方法、およびそれから製造された物品 Download PDFInfo
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- JP5258565B2 JP5258565B2 JP2008528160A JP2008528160A JP5258565B2 JP 5258565 B2 JP5258565 B2 JP 5258565B2 JP 2008528160 A JP2008528160 A JP 2008528160A JP 2008528160 A JP2008528160 A JP 2008528160A JP 5258565 B2 JP5258565 B2 JP 5258565B2
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Landscapes
- Engineering & Computer Science (AREA)
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- Textile Engineering (AREA)
- Laminated Bodies (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Manufacturing Of Multi-Layer Textile Fabrics (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Outer Garments And Coats (AREA)
Description
アラミド繊維(テイジン(Teijin)のトワロン(Twaron)(登録商標)T2000、1000のデニール数および26g/dの強度(引張り強度)を有する)の層から、4層の不織複合材料を作製した。繊維をクリールからコーミングステーションに通して一方向の網目構造を形成することによって、アラミド繊維のユニテープを作製した。次にこの繊維網目構造をキャリアウェブの上に置き、その上に母材樹脂をコーティングした。この母材樹脂は、熱可塑性ポリウレタン樹脂分散体(製造元の説明によると、水中のポリウレタン樹脂のコポリマー混合物(40〜60%樹脂)であり、23℃において1.05g/ccの相対密度および23℃において40cpsの粘度を有する)であった。コーティングされた繊維網目構造を、次にオーブンに通して組成物中の水を蒸発させ、キャリアウェブを剥離しながらローラー上に巻き取ることで、複合材料の形成の準備を行った。得られた構造は16重量パーセントのポリウレタン樹脂を有した。一方向の繊維のプリプレグの2本の連続ロールをこの方法で作製した。2つのこのようなユニテープを90°でクロスプライ積層し(cross-plied)、熱および圧力下で合体させて、2つの同一のアラミド繊維薄層を有する積層体を形成した。2つのこのような2層の合体構造を、次に、再び90°でクロスプライ積層し、熱および圧力下で合体させた。得られた構造は、4層のアラミド複合材料となった。この材料の18×18インチ(45.7×45.7cm)の試料を以下の試験に使用した。特に明記しない限り、以下の複数の実施例におけるすべての試験試料は、実施例1の試料と同じ大きさとした。
0.35ミル(8.89μm)の線状低密度ポリエチレン(LLDPE)フィルムを一方の表面上に有する2層のアラミド複合材料を、それぞれ最初に形成したことを除いて、実施例1を繰り返した。2つのこれらの複合材料を、アラミド層が互いに向かい合うようにして、プレス中で合体させた。この結果、各外面上にポリエチレンフィルムを有する4層のアラミド構造が得られた。
この構造の重量増加はごくわずかであり、24時間後で約10%であったことが分かる。さらに、重量増加の安定化は約12時間後である。
アラミド繊維の2層のユニテープのみを使用して、実施例1を繰り返した。この2層の複合材料の耐水性について実施例1のように試験を行い、これらの結果も図1に示している(実施例3と表示された曲線)。
この構造の重量増加はごくわずかであり、24時間後で約20%であったことが分かる。
樹脂母材が、エラストマー(クレイトンポリマーLLC(Kraton Polymer LLC)より入手可能なクレイトン(Kraton)(登録商標)D1107イソプレン−スチレン−イソプレンブロックコポリマー)であったことを除いて、実施例1を繰り返した。複合材料中の樹脂量は16重量%であった。それぞれの2層のアラミド積層体を0.35ミル(8.9μm)のLLDPEフィルムとともに合体させた。ポリエチレンフィルムが外面上にくるようにして2つの2層の積層体(アラミド同士が向かい合う)を合体させることによって、4層の積層体を形成した。この構造の耐水性について実施例1のように試験を行い、これらの結果も図1に示している(実施例4と表示された曲線)。
この複合材料は、約2時間後に80%の重量増加を示し、24時間の試験全体でほぼ同等の重量増加を維持したことが分かる。実施例1と比較すると、明らかに重量増加が大きい。
樹脂母材が実施例4と同じであったことを除いて、実施例3を繰り返した。さらに、2層のアラミド布層の両面にLLDPEフィルムを取り付けた。この2層の構造の耐水性について実施例1のように試験を行い、これらの結果も図1に示している(実施例5と表示された曲線)。
わずか約1時間後に重量増加が60%まで増加し、24時間の試験期間全体でほぼ同等を維持したことが分かる。実施例3と比較すると、明らかに重量増加が大きい。
この実施例では、実施例1の4層複合材料の11層を一体となるように形成し(各コーナーでタック縫いを行った)、この11層全体について同じ時間のドリップドライを行って実施例1のように重量増加の試験を行った。結果を図2に示している(実施例6と表示された曲線)。
重量増加は24時間後に約62%であり、最初の1時間の後はほぼ同程度に維持されたことがわかる。
実施例2の4層複合材料を11層使用したことを除いて、実施例6を繰り返した。この構造の重量増加について実施例6のように試験を行い、結果を図2に示している(実施例7と表示された曲線)。
この構造の重量増加は24時間試験終了時でわずか約19%であることが分かる。
実施例3の2層の複合材料を11層使用したことを除いて、実施例6を繰り返した。この構造の重量増加について実施例6のように試験を行い、結果を図2に示している(実施例8と表示された曲線)。
この構造の重量増加は試験開始から終了までで約40%であることが分かる。
比較例である実施例4の4層複合材料を11層使用したことを除いて、実施例6を繰り返した。この構造の重量増加について実施例6のように試験を行い、結果を図2に示している(実施例9と表示された曲線)。
実施例6の重量増加が約62%であるのと比較して、この複合材料の重量増加は24時間後に約72%であることが分かる。また、実施例6の重量増加曲線がほぼ平坦であるのに対し、比較例9では上昇している。
比較例である実施例5の2層の複合材料を11層使用したことを除いて、実施例6を繰り返した。この構造の重量増加について実施例6のように試験を行い、結果を図2に示している(実施例10と表示された曲線)。
実施例8の2層の複合材料の重量増加がわずか約40%であるのと比較して、この複合材料の重量増加は24時間後で約72%であることが分かる。また、実施例8の重量増加曲線がほぼ平坦であるのに対し、比較例10では上昇している。
実施例1の4層複合材料の複数層(シュートパック(shoot pack))の防弾特性を、70°F(21℃)の水道水に浸漬する前および20時間浸漬した後で測定した。破片は、MIL−P−46593A(ORD)によって指定される、口径=0.22、17グレイン破片模擬弾(Fragment Simulating Projectile;FSP)であった。試験方法はMIL−STD−662Fの基準に従った。それぞれ18×18インチ(45.7×45.7cm)であり、層を互いに維持するためにコーナーでのみ縫い合わせた、実施例1の4層積層体の23層のシュートパック上に、数個の17グレインFSPを発射した。このシュートパックは上部のみを固定し、シュートパックの下部は、縁端部上に固定した幅1.5インチ(3.8cm)の鋼製アングルによって部分的に束縛した。
結果を以下の表1に示す。本発明の複合材料を有するシュートパックを20時間浸漬した後でさえも、この試験による防弾性能特性を85%維持したことが分かる。
実施例3の2層の複合材料の48層の防弾特性について、実施例11および12と同じ方法で、水道水に浸漬する前および24時間浸漬した後で測定した。
結果を以下の表2に示す。本発明の複合材料を有するシュートパックを24時間浸漬した後でさえも、この試験による防弾性能特性を92%維持したことが分かる。
実施例1の4層複合材料の24層の防弾特性について、室温(70°F、21℃)のガソリンに浸漬する前および4時間浸漬した後で測定した。米陸軍によって使用されるような16グレインの直円柱(right circular cylinder;RCC)試験試料破片を使用したことを除いて、防弾性試験は実施例11および12のように行った。
結果を以下の表3に示している。表3に示されるように、本発明の複合材料は、ガソリン中に4時間浸漬した後の重量増加がわずか13%であり、これは液体の吸収が最小限であることを示している。また、ガソリン中に4時間浸漬した後でさえも、本発明の複合材料を有するシュートパックが、この試験による防弾性能特性を89%維持したことが分かる。
Claims (5)
- 水およびその他の液体の吸収に対して改善された抵抗性を有する可撓性防弾性防護具であって、少なくとも1種類の可撓性複合材料を含み、前記複合材料が複数の不織繊維層を含み、前記繊維層が、アラミド繊維、伸びきり鎖ポリエチレン繊維、剛直棒状繊維、およびそれらのブレンドからなる群から選択される高強度繊維の網目構造を含み、前記繊維が、熱可塑性ポリウレタン樹脂を含む母材中に存在し、前記母材が、水中のポリウレタン樹脂のコポリマー混合物として、前記繊維層に施用されている、前記可撓性防弾性防護具。
- 少なくとも1種類の複合材料を含み、前記複合材料が複数の不織繊維層を含み、前記繊維層が高強度繊維の網目構造を含む、可撓性防弾性防護物品の、水およびその他の液体の吸収に対する抵抗性を改善する方法であって、前記高強度繊維の網目構造を水中のポリウレタン樹脂のコポリマー混合物でコーティングすることで、前記樹脂が前記繊維の母材を形成するようにする工程と、少なくとも一部に前記少なくとも1種類の複合材料を使用して、前記可撓性防護物品を形成する工程とを含み、前記繊維がアラミド繊維を含む、前記方法。
- 前記防護具が、70°F±5°F(21℃±2.8℃)の海水に24時間浸漬した後で、16グレイン発射体を衝突させた場合に、少なくとも1920fps(585.6mps)のV50を有する、請求項1に記載の可撓性防弾性防護具。
- 前記防護具が、アラミド繊維の網目構造を含んでいる複数の不織繊維層を含む複合材料から形成されたチョッキを含み、前記チョッキがアラミド繊維の複数の織った繊維層を含む第2の複合材料をさらに含む、請求項1に記載の可撓性防弾性防護具。
- 前記防護具が、くずれずに自立することはできない、請求項1に記載の可撓性防弾性防護具。
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US11/213,253 US7687412B2 (en) | 2005-08-26 | 2005-08-26 | Flexible ballistic composites resistant to liquid pick-up method for manufacture and articles made therefrom |
US11/213,253 | 2005-08-26 | ||
PCT/US2006/033151 WO2007097780A2 (en) | 2005-08-26 | 2006-08-24 | Flexible ballistic composites resistant to liquid pick-up, method for manufacture and articles made therefrom |
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2005
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IL189772A (en) | 2012-10-31 |
BRPI0614963A2 (pt) | 2010-06-22 |
RU2008111143A (ru) | 2009-10-10 |
AU2006338598A1 (en) | 2007-08-30 |
AR057779A1 (es) | 2007-12-19 |
TW200712272A (en) | 2007-04-01 |
CA2620324A1 (en) | 2007-08-30 |
JP2009505865A (ja) | 2009-02-12 |
IL189772A0 (en) | 2008-08-07 |
US7687412B2 (en) | 2010-03-30 |
CA2620324C (en) | 2016-02-23 |
WO2007097780A2 (en) | 2007-08-30 |
KR20080043374A (ko) | 2008-05-16 |
KR101352326B1 (ko) | 2014-02-17 |
US20090025111A1 (en) | 2009-01-29 |
CN101356054A (zh) | 2009-01-28 |
WO2007097780A8 (en) | 2008-07-03 |
EP1917140A2 (en) | 2008-05-07 |
MX2008002711A (es) | 2008-04-15 |
RU2436676C2 (ru) | 2011-12-20 |
AU2006338598B2 (en) | 2011-01-06 |
TWI377272B (en) | 2012-11-21 |
CN101356054B (zh) | 2013-06-19 |
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