JP5285158B2 - マルチスペクトル型選択的反射構造体 - Google Patents
マルチスペクトル型選択的反射構造体 Download PDFInfo
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- JP5285158B2 JP5285158B2 JP2011523790A JP2011523790A JP5285158B2 JP 5285158 B2 JP5285158 B2 JP 5285158B2 JP 2011523790 A JP2011523790 A JP 2011523790A JP 2011523790 A JP2011523790 A JP 2011523790A JP 5285158 B2 JP5285158 B2 JP 5285158B2
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Classifications
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- B32B2327/12—Polyvinylhalogenides containing fluorine
- B32B2327/18—PTFE, i.e. polytetrafluoroethylene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/14—Printing or colouring
- B32B38/145—Printing
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
- Y10T428/24998—Composite has more than two layers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Laminated Bodies (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Description
OD = Log 1/T
で定義される。ここにODは光学密度であり、Tは透過率である。
1.厚さ0.0075インチの基準PETフィルムをサンプル・ポートの上に置く。
2.検出器のアームを光ポートの位置まで下げ、制御ボタンを押すことによってゼロにセットする。
3.ディジタルの読み取り値がゼロになっていなくてはならない。
4.結果を記録する。
5.試験サンプルを光テーブルの上に載せる。そのとき、試験サンプルが光ポートを覆うようにする。
6.光ポートを覆っているサンプルの位置まで検出器のアームを下げ、制御ボタンを押す。
7.LEDディスプレイから結果を読み取って記録する。
8.残りのサンプルに関してステップ5〜8を繰り返す。
透過率(%)=[10(dB損失/10)]×100
調べた範囲での透過率(%)を表3に示す。
炭素被覆ePTFEと金属化ePTFEを有する構造体のサンプルを以下のようにして製造した。
炭素被覆ePTFE層と、Alホイルと、テキスタイル製裏打ち材とを備える構造体のサンプルを以下のようにして製造した。
着色ePTFE層とテキスタイル製裏打ち材を含む構造体のサンプルを以下のようにして製造した。
印刷したePTFEと金属化ePTFEを含む構造体のサンプルを以下のようにして製造した。
実質的に実施例1に従って構造体のサンプルを製造したが、以下の点が異なっている。
金属コーティングで接合した2つの炭素被覆ePTFE層を含む構造体のサンプルを以下のようにして製造した。
ポリプロピレンと金属を含む構造体のサンプルを以下のようにして製造した。
金属化ポリウレタンからなる構造体のサンプルを以下のようにして製造した。
ポリウレタン・フィルムとアルミニウム・フィルムを含む構造体のサンプルを以下のようにして製造した。
実質的に実施例5に従って構造体のサンプルを製造したが、以下の点が異なっている。不連続なポリウレタン接着剤の代わりに3M社のSuper 77(登録商標)多目的接着剤からなる連続コーティングを用い、第1の要素と第2の要素を接合した。テキスタイル製裏打ち材も省略した。
ポリウレタン・フィルムの代わりに1.5ミルのポリエチレン・テレフタレート(PET)フィルムを用い、実質的に実施例8に従って構造体のサンプルを製造した。熱反射層に関して放射率を金属化されていない側から測定し、値を表1に示してある。
ePTFEと金属化ePTFEを含む構造体のサンプルを以下のようにして製造した。
炭素被覆ePTFEと金属化ポリエステルを含む構造体のサンプルを以下のようにして製造した。
複合体のマルチスペクトル反射特性を測定するため、ゴア社の商品#WJIX102108HZを入手した。ゴア社のこの商品は軍隊仕様に合致したファブリックの代表例であり、許容可能な外観とnIR特性を有するが、熱反射特性の条件はない。このファブリックは、テキスタイル製裏打ち材を有する二成分フィルムに貼り合わせたカムフラージュ印刷付きテキスタイルである。4つのカラー・パターンの各色(ライト・タン、アーバン・タン、ライト・コヨーテ、ハイランド)を、それぞれ14a、14b、14c、14dとして測定した。マルチスペクトル試験の結果を表1に示す。
Claims (42)
- 前面部と裏面部とを含む構造体であって、
該構造体が、第1の微小孔性ポリマー層と着色剤とを含有する、熱透過性であって視覚的に不透明である基板を含み、該基板が、該構造体の該前面部に近位である第1面と、第2面とを有し、
また、該構造体が、熱透過性であって視覚的に不透明である該基板の該第2面に近接する低放射率要素を含有する熱反射層を含み、該熱反射層が該構造体の該裏面部に近接し、
さらに、該構造体が、
i)400〜600nmの範囲の波長で平均反射率が約70%未満であり、
ii)9〜12μmの範囲の波長で平均反射率が約25%超であり、及び
iii)1GHz〜約5GHzの範囲の周波数で平均レーダー透過率が90%超である、
構造体。 - さらに、700〜1000nmの範囲の波長で平均反射率が約70%未満である、請求項1に記載の構造体。
- 1GHz〜約20GHzの周波数の範囲全体で平均レーダー透過率が90%超である、請求項1に記載の構造体。
- 1GHz〜約20GHzの範囲の周波数で平均レーダー透過率が99%超である、請求項1に記載の構造体。
- 前記第1の微小孔性ポリマー層が第1の微小孔性延伸ポリテトラフルオロエチレン(ePTFE)を含む、請求項1に記載の構造体。
- 前記熱反射層がポリマー層を含む、請求項1に記載の構造体。
- 前記熱反射層が金属化ポリマー層を含む、請求項6に記載の構造体。
- 前記熱反射層が第2の微小孔性ポリマー層を含む、請求項1に記載の構造体。
- 前記第2の微小孔性ポリマー層が金属化されている、請求項8に記載の構造体。
- 前記第2の微小孔性ポリマー層が金属化ePTFEを含む、請求項9に記載の構造体。
- 前記熱反射層が第2の微小孔性延伸PTFE層を含み、前記低放射率要素が該第2の微小孔性延伸PTFE層の金属化された面から形成するように堆積された金属であり、該金属化された面が、熱透過性であって視覚的に不透明である前記基板の前記第2面に近接する、請求項5に記載の構造体。
- 前記金属の厚さが約1μm未満である、請求項11に記載の構造体。
- 前記金属の厚さが約500nm未満である、請求項11に記載の構造体。
- 前記金属の厚さが約400nm未満である、請求項11に記載の構造体。
- 前記熱反射層が、介在接着層によって熱透過性で視覚的に不透明な前記基板に接合されている、請求項1に記載の構造体。
- 前記低放射率要素が、蒸着された金属粒子を前記第2の微小孔性延伸ePTFE層の表面に含む、請求項11に記載の構造体。
- 前記低放射率要素が、金属粒子を含むスプレー・コーティングを前記第2の微小孔性延伸ePTFE層の表面に備える、請求項5に記載の構造体。
- 前記低放射率要素がAlを含む、請求項1に記載の構造体。
- 前記低放射率要素がCuを含む、請求項1に記載の構造体。
- 前記低放射率要素がAuを含む、請求項1に記載の構造体。
- 前記低放射率要素が、銀(Ag)、ニッケル(Ni)、スズ(Sn)、亜鉛(Zn)、鉛(Pb)、クロム(Cr)及び、それらの合金の中から選択される、請求項1に記載の構造体。
- 前記熱反射層に近い位置かつ熱透過性で視覚的に不透明な前記基板の反対側に、レーダー信号を減衰させるためのレーダー・カムフラージュ層をさらに備える、請求項1に記載の構造体。
- 前記レーダー・カムフラージュ層がレーダー吸収要素を備える、請求項22に記載の構造体。
- 前記レーダー・カムフラージュ層がレーダー反射要素を備える、請求項22に記載の構造体。
- 前記レーダー・カムフラージュ層が、レーダー吸収要素の複数の離散領域と、レーダー反射要素の複数の離散領域を備える、請求項22に記載の構造体。
- 前記レーダー・カムフラージュ層が、熱透過性で視覚的に不透明な前記基板とは反対側で熱反射層に貼り合わされている、請求項22に記載の構造体。
- 油等級が1超である、請求項1に記載の構造体。
- 油等級が2超である、請求項1に記載の構造体。
- 手触りが500g未満である、請求項1に記載の構造体。
- 手触りが300g未満である、請求項1に記載の構造体。
- 手触りが200g未満である、請求項1に記載の構造体。
- レーダー・カムフラージュ車両に、視覚的であって、かつ、熱的であるカムフラージュを提供する方法であって、
該方法が
a.前面部、裏面部、
該前面部に近接する、熱透過性であって視覚的に不透明である基板、及び
熱透過性であって視覚的に不透明である該基板に近接する低放射率要素を含有する熱反射層を含む構造体であって
該構造体が、
i)400〜600nmの範囲の波長で平均反射率が約70%未満であり、
ii)9〜12μmの範囲の波長で平均反射率が約25%超であり、及び
iii)1GHz〜約5GHzの範囲の周波数で平均レーダー透過率が90%超である、
構造体を形成する工程、並びに、
b.検出器と該レーダー・カムフラージュ車両との間に該構造体を配置し、該構造体の該前面部が検出器に向くような位置に配置される、工程
を含む方法。 - レーダー透過性であって、熱的、かつ、視覚的にカムフラージュ性がある構造体を生産する方法であって、該方法が、
a.熱透過性の第1の微小孔性ポリマー材料を含んでいて第1の面と第2の面を有する第1の基板を提供する工程、
b.着色剤を用意する工程、
c.該着色剤を該第1の基板の少なくとも第1の面に付着させて熱透過性で視覚的に不透明な層を形成する工程、
d.低放射率要素を含む第2の基板を提供する工程、
e.該第2の基板の低放射率要素を該第1の基板の第2面に向くような位置に配置される工程、並びに
f.該第1の基板と該第2の基板を接着することにより、400〜600nmの範囲の波長で平均反射率が約70%未満であり、9〜12μmの範囲の波長で平均反射率が約25%超であり、及び1GHzから約20GHzの範囲の周波数でレーダー透過率が90%超である構造体を形成する工程
を含む方法。 - 熱透過性の前記ポリマー材料がePTFEを含む、請求項33に記載の方法。
- 前記ePTFEに着色剤を印刷することにより、熱透過性で視覚的に不透明な前記基板を形成する、請求項34に記載の方法。
- 請求項33に記載の方法において、前記第2の基板が第2の微小孔性ポリマー層を含み、この方法が、その第2の微小孔性ポリマー層に金属を蒸着するステップをさらに含む方法。
- 請求項33に記載の方法において、前記第2の基板が第2の微小孔性ポリマー層を含み、この方法が、その第2の微小孔性ポリマー層に金属をスプレーするステップをさらに含む方法。
- 前記第1の微小孔性ポリマー層と前記第2の微小孔性ポリマー層を互いに固定するステップを含む、請求項36に記載の方法。
- 接着剤として金属スプレーを用いて前記第1の微小孔性ポリマー層と前記第2の微小孔性ポリマー層を互いに固定するステップを含む、請求項37に記載の方法。
- 前記構造体の第2の基板に近い側に貼り合わされた少なくとも1つの追加層を備える、請求項33に記載の方法。
- 前記少なくとも1つの追加層がテキスタイル層である、請求項40に記載の方法。
- 前記少なくとも1つの追加層がレーダー・カムフラージュ層である、請求項40に記載の方法。
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US12/195,794 US8916265B1 (en) | 2007-11-09 | 2008-08-21 | Multi-spectral, selectively reflective construct |
US12/195,794 | 2008-08-21 | ||
US12/391,595 US9276324B2 (en) | 2007-11-09 | 2009-02-24 | Multi-spectral, selectively reflective construct |
US12/391,595 | 2009-02-24 | ||
PCT/US2009/002162 WO2010021644A1 (en) | 2008-08-21 | 2009-04-07 | Multi-spectral, selectively reflective construct |
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Cited By (2)
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US8652161B2 (en) | 1998-09-15 | 2014-02-18 | Covidien Lp | Laparoscopic instrument and trocar systems for trans-umbilical laparoscopic surgery |
US8652160B2 (en) | 1998-09-15 | 2014-02-18 | Covidien Lp | Laparoscopic instrument and trocar systems for trans-umbilical laparoscopic surgery |
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PL2313735T3 (pl) | 2013-08-30 |
RU2011110431A (ru) | 2012-09-27 |
CA2838354A1 (en) | 2010-02-25 |
JP2012500382A (ja) | 2012-01-05 |
EP2313735A1 (en) | 2011-04-27 |
US9276324B2 (en) | 2016-03-01 |
KR20110069011A (ko) | 2011-06-22 |
CA2838354C (en) | 2015-08-18 |
WO2010021644A1 (en) | 2010-02-25 |
CN102159915B (zh) | 2015-05-06 |
KR101311596B1 (ko) | 2013-09-26 |
RU2476811C2 (ru) | 2013-02-27 |
HK1155509A1 (en) | 2012-05-18 |
US8779964B2 (en) | 2014-07-15 |
EP2313735B1 (en) | 2012-11-07 |
US20130180657A1 (en) | 2013-07-18 |
CA2734764C (en) | 2015-03-24 |
US20090214852A1 (en) | 2009-08-27 |
CA2734764A1 (en) | 2010-02-25 |
CN102159915A (zh) | 2011-08-17 |
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