EP2142365A2 - Flexibles mehrschichtiges material, vorzugsweise für eine aufblasbare ballonhülle, sowie ein verfahren zur herstellung einer aufblasbaren hülle - Google Patents

Flexibles mehrschichtiges material, vorzugsweise für eine aufblasbare ballonhülle, sowie ein verfahren zur herstellung einer aufblasbaren hülle

Info

Publication number
EP2142365A2
EP2142365A2 EP08749127A EP08749127A EP2142365A2 EP 2142365 A2 EP2142365 A2 EP 2142365A2 EP 08749127 A EP08749127 A EP 08749127A EP 08749127 A EP08749127 A EP 08749127A EP 2142365 A2 EP2142365 A2 EP 2142365A2
Authority
EP
European Patent Office
Prior art keywords
layer
layers
fibers
multilayer material
uhmwpe
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.)
Withdrawn
Application number
EP08749127A
Other languages
German (de)
English (en)
French (fr)
Inventor
Kamal Alavi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2142365A2 publication Critical patent/EP2142365A2/de
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • 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
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64B—LIGHTER-THAN AIR AIRCRAFT
    • B64B1/00—Lighter-than-air aircraft
    • B64B1/06—Rigid airships; Semi-rigid airships
    • B64B1/14—Outer covering
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/10—Coating on the layer surface on synthetic resin layer or on natural or synthetic rubber layer
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/20—Inorganic coating
    • B32B2255/205—Metallic coating
    • 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
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/71—Resistive to light or to UV
    • 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
    • B32B2457/00—Electrical equipment
    • B32B2457/10—Batteries
    • 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
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/235—Inflatable members characterised by their material
    • B60R2021/23504—Inflatable members characterised by their material characterised by material
    • B60R2021/23523—Composite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y99/00—Subject matter not provided for in other groups of this subclass
    • 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
    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1334—Nonself-supporting tubular film or bag [e.g., pouch, envelope, packet, etc.]
    • Y10T428/1338—Elemental metal containing
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31725—Of polyamide
    • Y10T428/3175—Next to addition polymer from unsaturated monomer[s]
    • Y10T428/31757—Polymer of monoethylenically unsaturated hydrocarbon
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31938—Polymer of monoethylenically unsaturated hydrocarbon

Definitions

  • Flexible multilayer material preferably for an inflatable balloon envelope, and a method of making an inflatable balloon
  • the invention relates to a flexible multilayer material, in particular for an inflatable balloon envelope, an airship, an airbag, a sail, a flexible solar cell or a flexible antenna, and a method for producing an inflatable envelope.
  • the envelope for gas-filled balloons which are used for example for the deployment of various telecommunications and / or monitoring platforms in the stratosphere (high altitude balloons), from a material consisting of several layers to produce, for example, on a polyester fabric, a layer or a film of Mylar (polyethylene terephthalate, PET) and on this another poly ethylene layer or another polyethylene film are applied.
  • the individual layers are connected to each other by means of suitable adhesives.
  • the balloon envelope is made of a plurality of webs made of the multilayer material, which are also glued together. This brings with it some disadvantages.
  • the splices will leak so that the gas filling the balloon, eg helium or hydrogen, can escape. They also affect the flexibility and the required high strength or tensile strength of the balloon envelope, and last but not least, they also increase the envelope weight. Especially when stationed on the amount of 20 up to 30 km balloons (high altitude balloons) which are exposed to extreme temperature changes and, in particular, for example, temperatures of from -80 0 C, the adhesion points constitute a risk factor.
  • the present invention has for its object to provide a multilayer material, in particular for an inflatable balloon envelope but also for example for airships, parachutes, airbags, sails, flexible solar cells or the like, which is lightweight and high modulus of elasticity and high strength or Has tear resistance. Furthermore, a method for producing an inflatable casing made of the multilayer material according to the invention is to be proposed, in which the disadvantageous bonding of individual layers and webs is largely dispensed with and a light, flexible casing which withstands high pressure under different conditions, for example a Balloon, airship or airbag shell, can be generated.
  • This object is achieved by a multilayer material having the features of claim 1 and by a method according to claim 10.
  • the flexible multilayer material according to the invention is characterized by high tear resistance. Because this UHMWPE layer is surrounded on both sides by a respective layer or film of polyethylene (or the UHMWPP layer by a respective layer or film of polypropylene), the layers or films placed on top of one another can be connected to one another only by heating without having to use adhesives.
  • UHMWPE ultra-high molecular weight polyethylene
  • UHMWPP ultra-high molecular weight polypropylene
  • an inflatable envelope eg a balloon envelope
  • a "high-pressure container” around an inflated envelope by successively rolling up the individual layers or foils and subsequently heating them by means of a heating roller
  • the layers or foils are wound on the blown-on mold envelope in an overlapping manner and are rolled up onto the blown mold envelope.
  • the layers or foils are advantageously rolled onto a mold envelope rotating about its longitudinal axis by means of a roll moved along the mold envelope, wherein - A - also the heating roller is moved along the rotating mold shell. After completion of the shell, the shell is emptied and pulled out through a designated, closable opening from the shell.
  • FIG. 1 shows an exemplary embodiment of the structure or layer composition of a multilayer material according to the invention
  • FIG. 3 shows a plant for the production of an inflatable balloon envelope from the multilayer material according to the invention.
  • Fig. 4 in front view of a sail of inventive multilayer material.
  • FIG. 1 shows diagrammatically from which layers according to the invention a flexible, multilayer material provided, for example, for an inflatable balloon or airship cover can be assembled.
  • a first layer 10 intended to form the inside of the balloon is formed by an ethylene-based, for example ethylene vinyl alcohol (EVOH), film which is about 5 to 20 ⁇ m thick.
  • EVOH ethylene vinyl alcohol
  • a layer 11 of ultra-high molecular weight polyethylene (UHMWPE) is applied, which may, for example, be commercially available material of fibers, filaments or the like, such as Dyneema or Spectra.
  • UHMWPE ultra-high molecular weight polyethylene
  • LLPPE low density polyethylene
  • the second UHMWPE layer 13 is to be covered with another LDPE polyethylene film 14, which may be provided with an aluminum protective layer on the outside.
  • the inner layer 10 could be provided with an additional powder coating in the nanoscale by plasma deposition or the like.
  • these at least one UHMWPE layer is surrounded on both sides by a respective layer or film of polyethylene, the layers or films placed on top of one another can be combined by heating alone. be connected without having to use adhesives or resin mixtures (Resin).
  • the layers are heated to a temperature just below the melting point, preferably to 60-90 0 C in a compressed state.
  • polyethylene films are in a special way stretch films through which when joining with the existing layer of fibers or filaments 13 already a self-adhesion is effected.
  • Ultra Molecular Weight Polypropylene could also form a corresponding layer or layers 11, 13, with layers or films of polypropylene (propylene) being used instead of the other polyethylene layers or films would.
  • Polypropylene is particularly suitable for applications at room temperatures, since polypropylene can only be used up to about -20 0 C.
  • Fig. 2 shows an enlarged view of a cross section, in particular through the layer 13 with the fibers or threads 13 '.
  • These threads 13 ' which each have a diameter in the micrometer range, are arranged such that they are approximately in a row, not superimposed, parallel to each other, so that each individual thread 13' on both sides with the respective film 12, 14th is connected. This results in an optimal full-surface connection between the films and the fibers or threads.
  • the bundles delivered usually bundled are detached from each other and aligned to an approximately single-tier layer 13, before they are then joined together with the films and glued.
  • FIG. 3 how, for example, a shell, for example a balloon envelope, is produced from the multilayer material described above.
  • Fig. 3 shows a system 20 with one of the outer shape of the balloon envelope to be produced, preferably in an aerodynamic shape inflated molding shell 21, which consists of a non-meltable with polyethylene material, preferably textile.
  • the mold sleeve 21 is rotatably mounted in the system 20 about its longitudinal axis a.
  • the first blown mold envelope 21 is first of all wound helically and overlappingly by means of layer 10, which is preferably formed by the gas-tight ethylene vinyl alcohol (EVOH) foil, for which purpose a roll 22 moved along the mold envelope 21 is present.
  • layer 10 is preferably formed by the gas-tight ethylene vinyl alcohol (EVOH) foil, for which purpose a roll 22 moved along the mold envelope 21 is present.
  • EVOH gas-tight ethylene vinyl alcohol
  • the first layer 10 is heated by means of a likewise moving along the mold shell 21 heating roller 24, which is associated with a magnetically co-moving counter-roller 25 inside the mold shell 21 and pressed together the overlapping film parts and in this case gas-tight connected.
  • these assembled films are subsequently cooled immediately, so that the molecular structure is not changed in the fibers.
  • the further layers or films are successively rolled individually onto the mold shell.
  • the two UHMWPE or Dyneema layers 11, 13 are wound in such a way that the fibers or threads of the two layers extending transversely to one another are directed to the longitudinal or rotational axis a of the mold shell 21.
  • the axis of rotation a of the mold sleeve 21 can be made oblique to the direction of displacement of the movable roller 22.
  • Teflon coating (FEP) can additionally be glued onto the balloon envelope as UV protection, preferably by means of an acrylic adhesive 966.
  • the balloon envelope produced according to the invention is thin and lightweight, and yet it can withstand extremely high pressure loads, even under changing conditions. It is advantageous that the individual foils can be wound at different locations with different overlapping, so that the shell can be designed differently strong at different locations. Thanks to the above-mentioned properties of the shell, a balloon can be brought to a greater height than is possible with conventional balloon envelopes.
  • the first layer onto which the further layers or films are applied is advantageously formed by a polyethylene film coated with aluminum on the side corresponding to the inside of the airbag cover. Thanks to the multilayer material according to the invention, a higher pressure can be used, but the airbag is sufficiently flexible on impact due to the high modulus of elasticity of the material upon impact. Instead of sheaths, products such as sails, flexible solar cells, flexible antennas and the like could also be produced from the material according to the invention.
  • the first layer or film is then applied to a mold surface having a straight or a corresponding negative mold, for example aspirated, before the further layers, of which in turn at least one consists of UHMWPE or UHMWPP, are applied and joined together by heating become.
  • one of the layers of stability surrounding the UHMWPE layer is advantageously made of a polyethylene (PE) coated nylon 66.
  • PE polyethylene
  • the sail is nevertheless much lighter than conventional nylon sails and therefore easier to handle.
  • a cover film with an outer aluminum protective layer can be used.
  • the fibers or threads 31 can then also be formed, for example, into loops 32, in which these fibers or threads 31 emerge from the sail and are returned to the sail, as with the thread 33, 33 ', 33 ".This results in an optimum transfer of force from the sail 30 to these ropes holding them in.
  • these threads could, for example, be braided into a rope and fibers or threads could also be provided in the transverse direction ,
  • this inventive multilayer material are bulletproof garments, flexible solar cells or batteries, bulletproof covers in helicopters, flexible tubes, balloons in the surgical field in high-pressure catheters for arteriosclerotic vessel openings, and further conceivable.
  • the respective layer of fibers or threads of different plastic materials for example, UHMWPE and UHMWPP could be composed, so that on one side of the layer consisting of fibers or filaments a layer or foil of different material relative to the layer on the the other side could be connected by heating.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Laminated Bodies (AREA)
  • Moulding By Coating Moulds (AREA)
EP08749127A 2007-04-28 2008-04-25 Flexibles mehrschichtiges material, vorzugsweise für eine aufblasbare ballonhülle, sowie ein verfahren zur herstellung einer aufblasbaren hülle Withdrawn EP2142365A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH7022007 2007-04-28
PCT/EP2008/003347 WO2008131916A2 (de) 2007-04-28 2008-04-25 Flexibles mehrschichtiges material, vorzugsweise für eine aufblasbare ballonhülle, sowie ein verfahren zur herstellung einer aufblasbaren hülle

Publications (1)

Publication Number Publication Date
EP2142365A2 true EP2142365A2 (de) 2010-01-13

Family

ID=39870366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08749127A Withdrawn EP2142365A2 (de) 2007-04-28 2008-04-25 Flexibles mehrschichtiges material, vorzugsweise für eine aufblasbare ballonhülle, sowie ein verfahren zur herstellung einer aufblasbaren hülle

Country Status (14)

Country Link
US (1) US20100239797A1 (ko)
EP (1) EP2142365A2 (ko)
JP (1) JP5645656B2 (ko)
KR (1) KR20100085831A (ko)
CN (1) CN101711200B (ko)
AU (1) AU2008243333A1 (ko)
CA (1) CA2685360A1 (ko)
EG (1) EG25963A (ko)
IL (1) IL201616A0 (ko)
MX (1) MX2009011477A (ko)
RU (1) RU2009144102A (ko)
UA (1) UA102997C2 (ko)
WO (1) WO2008131916A2 (ko)
ZA (1) ZA200907512B (ko)

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CN102508320A (zh) * 2011-11-08 2012-06-20 广东省大气探测技术中心 一种有防水保护层的高空气球及加工方法
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CN109208338B (zh) * 2017-07-07 2022-04-08 浙江全米特新材料科技有限公司 一种超轻、高强柔性复合膜及其制备方法
CN109383097A (zh) * 2017-08-07 2019-02-26 海口未来技术研究院 聚乙烯薄膜与浮空器
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CN101711200B (zh) 2014-12-03
IL201616A0 (en) 2010-05-31
EG25963A (en) 2012-11-13
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CA2685360A1 (en) 2008-11-06
US20100239797A1 (en) 2010-09-23
ZA200907512B (en) 2010-08-25
CN101711200A (zh) 2010-05-19
JP5645656B2 (ja) 2014-12-24
UA102997C2 (ru) 2013-09-10
WO2008131916A3 (de) 2009-02-12
WO2008131916A2 (de) 2008-11-06
AU2008243333A1 (en) 2008-11-06
KR20100085831A (ko) 2010-07-29
RU2009144102A (ru) 2011-06-10

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