• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Flexible multi-layer system (1), configured to be mounted on a support, in particular a roof, which multi-layer system (1) comprises: - a flexible photovoltaic module (3) comprising a photovoltaic element (4) with a top surface (4a) and a bottom surface (4b), a top layer (5) and a bottom layer (6), which photovoltaic element (4) is arranged between said top layer (5) and said bottom layer (6), which photovoltaic module (3 ) has a defined width; - a sealing membrane (7) having a first side (7a) and a second side (7b), arranged to be applied to said support; and - a bonding layer (8), arranged between the bottom layer (6) of said photovoltaic module (3) and said first side (7a) of said sealing membrane (7), characterized in that said bonding layer (8) has a larger width than the photovoltaic module (3).
    公开号:BE1023534B1
    申请号:E2016/5441
    申请日:2016-06-13
    公开日:2017-04-26
    发明作者:Renaud Verdebout；Patrick Cogneau；Damien Franssen；Hans Aerts
    申请人:S.A. Imperbel N.V.；
    IPC主号:
    专利说明:

    “SMALL MULTI-LAYER SYSTEM”
    The present invention relates to a flexible multi-layer system configured to be mounted on a support, in particular a roof, which system comprises: - a flexible photovoltaic module comprising a photovoltaic element with an upper surface and a lower surface, an upper layer and a bottom layer, which photovoltaic element is arranged between said top layer and said bottom layer, which photovoltaic module has a specific width; - a sealing membrane with a first side and a second side, arranged to be applied to said support; and - a connecting layer, arranged between the bottom layer of said photovoltaic module and said first side of said sealing membrane.
    Such a system is known from document WO 2009/061 939 which relates to a roof element comprising an encapsulated photovoltaic element, a roof substrate and a connecting layer. The encapsulated photovoltaic element has an upper surface and a lower surface and is arranged between an upper layer and a lower layer. The connecting layer offers the possibility to connect the photovoltaic element to the roof substrate. More precisely, the joining layer allows adhesion of the bottom layer of the encapsulated photovoltaic element with the top layer of the roof substrate. With the top layer, the roof element can be protected against the surrounding environment.
    This document describes that the photovoltaic element is encapsulated in such a way that the encapsulant, the top layer and the bottom layer can extend laterally on both sides of the photovoltaic element to fully encapsulate it over its entire size.
    The photovoltaic element, the top layer and the bottom layer thus form a photovoltaic module, ready to be connected by means of the connecting layer to the roof substrate, as is clearly illustrated in Figures 1 and 3 to 6.
    This document also mentions the possibility of covering a roof with a series of roof elements as described above.
    Unfortunately, the adhesion of the various layers forming the roof element cannot be guaranteed over time. Indeed, the adhesion of the encapsulated photovoltaic element with the roof substrate by means of the bonding layer diminishes over time, as a result of which the encapsulated photovoltaic element does not adhere sufficiently to the whole of the structure, making the roof element ineffective.
    Moreover, the production of a series of roof elements is complex, time-consuming and expensive.
    There is therefore a need to provide a flexible multi-layer system with a longer service life than the known multi-layer systems and which requires lower production costs.
    It is the object of the invention to overcome the disadvantages of the prior art by providing a multi-layer system of which the layers adhere sufficiently to each other, which makes the product more reliable over time, and whose production is simpler and cheaper .
    To solve this problem, the invention provides a multi-layer system as mentioned earlier, wherein said connecting layer has a greater width than said width of said photovoltaic module, so that it extends laterally further than said photovoltaic module.
    In this way the connection layer completely covers the bottom layer of the photovoltaic module and extends on both sides thereof.
    This guarantees a sufficient adhesion between the bottom layer of the photovoltaic module and the connecting layer.
    Thus, in the production of the said multi-layer system, the said photovoltaic module can easily and quickly be correctly aligned with the connecting layer. This has the advantage that the production process can be automated. A series of multi-layer systems can thus be produced quickly, for example by means of a continuous laminating process that guarantees simple production. This offers the possibility of obtaining a reliable end product with a longer lifespan than the known systems.
    The advantage of this structural configuration is that a multi-layer system can be offered that can easily be produced and in which the adhesion of the photovoltaic module with the sealing membrane is guaranteed over time.
    Advantageously, a part of said bottom surface of said photovoltaic element is in contact with the bottom layer of said photovoltaic module. A photovoltaic module is thus obtained with a more limited thickness, which has a direct impact on the total thickness of the system according to the present invention.
    The fact that a part of the bottom layer of the photovoltaic module is in direct contact with the bottom surface of said photovoltaic element also allows, and surprisingly, a better adhesion of the photovoltaic element to the bottom layer, which in the context of the present invention is particularly advantageous.
    More advantageously, said photovoltaic element is pre-encapsulated by means of an encapsulating means in order to protect the photovoltaic element that is potentially sensitive to the surrounding environment. It is therefore an advantage that it can be protected with the aid of an encapsulating agent.
    In a particular embodiment, the photovoltaic element comprises an encapsulant arranged between said upper layer of said photovoltaic module and the upper surface of said photovoltaic element. This way, the part of the photovoltaic element that is directed towards the sun's rays can be protected.
    The photovoltaic element preferably has lateral edges on which said encapsulant is also present, whereby said photovoltaic element can be protected at its lateral edges.
    In a particularly preferred embodiment of the device according to the present invention, the sealing membrane is selected from the group consisting of a bitumen-based membrane, a polymer membrane, a vegetable membrane, and a synthetic membrane. The integration of the said photovoltaic module according to the present invention into a sealing membrane according to the present invention is particularly advantageous since in this way a multifunctional product can be supplied. After all, the end product is sufficiently sealed to adequately cover a roof and offers the possibility of absorbing the light rays to convert them into electrical signals.
    In addition, in a specific embodiment, said sealing membrane is provided with a fixture of a material selected from the group consisting of polyester, glass fiber and mixtures thereof, whereby the membrane can be reinforced and its service life can be extended even further.
    The fixture can advantageously consist of a glass matrix.
    Advantageously, said upper layer of said photovoltaic module has a thickness comprised between 50 and 500 µm, preferably between 50 and 300 µm, more preferably between 50 and 200 µm, advantageously between 50 and 100 µm.
    Advantageously, said bottom layer of said photovoltaic module has a thickness comprised between 50 and 200 µm, preferably between 50 and 150 µm, more preferably between 100 and 130 µm.
    In a preferred embodiment, said photovoltaic element has a thickness included between 1 and 200 μη, preferably between 1 and 100 μη, more preferably between 1 and 5 μη.
    The photovoltaic element is preferably flexible, so that it can be given various shape types.
    Advantageously, said connecting layer has a thickness comprised between 50 and 500 µm, preferably between 150 and 300 µm, more preferably between 150 and 250 µm, even more preferably between 100 and 230 µm.
    Preferably, said sealing membrane has a thickness included between 0.5 and 5 mm, preferably between 0.5 and 2.5 mm, more preferably between 0.5 and 2 mm, more preferably between 0.5 and 1, 7 mm, advantageously between 1 and 1.6 mm.
    More preferably, said connecting layer has an adhesion stronger than 40 N / 50 mm, preferably stronger than 50 N / 50 mm, measured in accordance with standard EN 12316-1.
    Surprisingly, it was found that the joining layer of this invention exhibits an adhesion, at least stronger than 40 N / 50 mm, whereby a favorable adhesion can be obtained between the bottom layer of the photovoltaic module and the top side of the sealing membrane. The connecting layer of the present invention thus offers the possibility of reliably integrating the photovoltaic module with the sealing membrane.
    In a particularly preferred embodiment of the system according to this invention, said connecting layer comprises ethylene vinyl acetate (EVA) with preferably at least 20% vinyl acetate (AV), more preferably at least 33% VA, advantageously an amount equal to 33% VA.
    The connecting layer is particularly advantageous from EVA and exhibits an adhesion stronger than 40 N / 50 mm, preferably stronger than 50 N / 50 mm, measured in accordance with standard EN 1231-1.
    It has been found that the use of such a connecting layer still provides the adhesion of, on the one hand, the bottom layer of the photovoltaic module with the connecting layer and, on the other hand, of the top side of the sealing membrane with the connecting layer. The end product therefore has a longer lifespan than the known systems.
    Preferably, said bottom layer of said photovoltaic module is made from a material selected from the group consisting of polyesters, polyolefins, fluoropolymer and mixtures thereof.
    The fluoropolymer is preferably selected from the group consisting of ethylene / tetrafluoroethylene copolymer (ETFE), perfluoro-alkoxy (PFA), polyvinylidene fluoride (PVDF) and polyvinyl fluoride (PVF or "TEDLAR").
    The polyesters can be selected from the group consisting of polyethylene terephthalate (PET) and polyethylene naphthalate (PEN). PEN is particularly preferred.
    The polyolefins can be selected from the group consisting of polyethylene.
    In a preferred embodiment, said sealing membrane has a greater width than said connecting layer. As a result, several photovoltaic modules can be added to the membrane by resp. to add connection layers to thereby obtain the system of this invention. Multiple photovoltaic modules can thus be integrated with a single sealing membrane, which simplifies the production of the system according to the present invention. Moreover, the production process can be automated, which shortens the production time of such a system.
    Even more advantageously, said sealing membrane has a greater length than said connecting day.
    For example, the photovoltaic module and the connection day rest firmly on the sealing membrane.
    This offers the possibility of fixing the multi-layer system on any type of support, for example a roof, with a rough surface.
    The advantage of the system according to this invention is that thanks to its components it can be used on any type of preferably roughly inclined surface.
    Other embodiments of the system according to the present invention are stated in the appended claims.
    Another object of the invention is a roof containing the multi-layer system according to the present invention.
    Other embodiments of the method, device according to the present invention are mentioned in the appended claims.
    Other features, details and advantages of the invention will be apparent from the following non-limiting description with reference to the accompanying drawings.
    Figure 1 is an illustration of an embodiment of the multi-layer system according to the present invention.
    Figure 2 is a top view of a multi-layer system according to the present invention with a sealing membrane and two photovoltaic modules.
    Figure 3 is a sectional view of the multi-layer system of Figure 2.
    Figure 4 is an illustration of an embodiment of the multi-layer system according to the present invention.
    In the figures, identical or analogous elements bear the same reference numerals.
    In the context of the present invention, the production of the multi-layer system according to the present invention comprises the following steps: - provision of a sealing membrane with a top surface; - applying a connecting layer to the upper surface of the sealing membrane; - applying a photovoltaic module consisting of an upper layer, a lower layer and a photovoltaic element on the connecting layer to obtain a pre-assembled multi-layer structure; - introducing the pre-assembled multi-layer structure into a laminating machine to attach the layers to each other after the passage of the system into an oven with a specific temperature program.
    The production of the multi-layer system can take place in a static or continuous-working laminating machine. The construction of the multi-layer system in a continuous process is possible and is even facilitated by the mutual arrangement of the layers. That is, the production time of the multi-layer system can be considerably shortened. Moreover, the product obtained remains reliable since the layers adhere sufficiently to each other.
    The specific temperature program consists of a heating program that enables a sufficient laminating process to connect the layers of the system to each other. The application of this temperature program is known in the art.
    The laminating machine can advantageously be one of the KFC range of the Meyer company (Maschinenfabrik Herbert Meyer GmbH), in particular the KFK-V, KFK-X, KFK-E named devices.
    In the context of the present invention, a flexible photovoltaic module is used with an upper layer, a lower layer and a photovoltaic element.
    The top layer of the photovoltaic module is glued to the photovoltaic element with a two-component adhesive, and the bottom layer of the photovoltaic module is chemically bonded to the photovoltaic element by a plasma technique.
    Thus, the assembly of these layers allows the formation of the photovoltaic module according to the present invention.
    The photovoltaic element may contain electrical connections, as illustrated in Figure 4 and as described in the following.
    The photovoltaic element is preferably supplied by the company Hyet Solar.
    As described above, the photovoltaic element can be encapsulated with the aid of an encapsulant intended for this purpose.
    Such an encapsulating agent can be selected from the group consisting of EVA, functionalized EVA, cross-linked EVA, silicone, thermoplastic PUs, polyolefins modified with maleic acid, ionomers and ethylene / methacrylic acid copolymer.
    The encapsulant can be arranged between the top surface of the photovoltaic element and the top layer of the photovoltaic module.
    Advantageously, the encapsulating means can also extend to the lateral edges of the photovoltaic element or beyond said lateral edges.
    Said upper layer of said photovoltaic module has a thickness comprised between 50 and 500 µm, preferably between 50 and 300 µm, more preferably between 50 and 200 µm, even more preferably between 50 and 200 µm, advantageously between 50 and 100 µm.
    Advantageously, said bottom layer of said photovoltaic module has a thickness comprised between 50 and 200 µm, preferably between 50 and 150 µm, more preferably between 80 and 130 µm.
    Preferably, said bottom layer of said photovoltaic module is made from a material selected from the group consisting of polyesters, polyolefins, fluoropolymer and mixtures thereof.
    The fluoropolymer is preferably selected from the group consisting of ETFE, PFE, FEP, PVDF or PVF ("TEDLAR").
    The polyesters can be selected from the group consisting of PET and PEN. PEN is particularly preferred.
    The polyolefins can be selected from the group consisting of polyethylene.
    In a preferred embodiment, said photovoltaic element has a thickness included between 1 and 200 µm, preferably between 1 and 100 µm, more preferably between 1 and 5 µm.
    The connecting layer preferably has a thickness comprised between 50 and 500 µm, preferably between 150 and 300 µm, more preferably between 150 and 250 µm, even more preferably between 100 and 200 µm. It can advantageously be 200 µm thick.
    Moreover, said connecting layer may exhibit an adhesion stronger than 40 N / 50 mm, preferably stronger than 50 N / 50 mm, measured in accordance with standard EN 12316-1.
    Said connecting layer is selected from the group consisting of ethylene vinyl acetate (EVA) with preferably at least 20% vinyl acetate (AV), more preferably at least 33% VA, advantageously an amount equal to 33% VA.
    The connecting layer is particularly advantageous from EVA and exhibits an adhesion stronger than 40 N / 50 mm, preferably stronger than 50 N / 50 mm, measured in accordance with standard EN 1231-1.
    The EVA may, for example, correspond to the commercial product known as NovoVellum® Optima FC03 (http://www.enf.com.cn/ApolloF/solar/Product/pdf/EVA/5343906b3b9a7.pdf) available from NovoPolymers nv .
    The sealing membrane is selected from the group consisting of a bitumen-based membrane, a polymer membrane, a vegetable membrane and a synthetic membrane.
    For the purposes of the present invention, the bituminous membrane is preferably a membrane with an armature of which at least one side is covered with a bituminous composition.
    The bituminous membrane is advantageously a commercial product selected from the group consisting of the following commercial products: Derbibrite, Derbibrite NT, Derbibrite FM, Derbibrite SELFIX, Derbipure, Aquatop, Derbigum ARTE, Derbigum SELFIX, Derbisolar BASE and mixtures thereof. The products are available from Derbigum.
    The synthetic membrane can be selected from the following commercial products: VAEPLAN V 1.2 mm, VAEPLAN V 1.5 mm, VAEPLAN V-FR 1.2 mm, VAEPLAN V-FR 1.5 mm, VAEPLAN U / GV 1, 2 mm, VAEPLAN F 1.5 mm, VAEPLAN F 1.2 mm, VAEPLAN VS 1.2 mm, VAEPLAN VS 1.5 mm, VAEPLAN ABS 1.2 mm, VAEPLAN ABS 1.5 mm. The products are available from Derbigum.
    The vegetable membrane can advantageously be selected from the following commercial products: DERBIPURE, available from Derbigum.
    In a particularly preferred embodiment, said sealing membrane is provided with a fixture of a material selected from the group consisting of polyester, glass fiber and mixtures thereof.
    More preferably, said sealing membrane has a thickness included between 0.5 and 5 mm, preferably between 0.5 and 2.5 mm, more preferably between 0.5 and 2 mm, more preferably between 0.5 and 1.7 mm, advantageously between 1 and 1.6 mm.
    In a preferred embodiment, a part of said bottom surface 4b of said photovoltaic element 4 is in contact with the bottom layer 6 of said photovoltaic module 3.
    Advantageously, said sealing membrane has a greater width than said connecting layer.
    Even more advantageously, said sealing membrane has a greater length than said connecting layer.
    The present invention also relates to a roof containing the multi-layer system according to any of the preceding claims.
    The roof can in any case contain a plurality of multi-layer systems according to the present invention.
    Figure 1 is an illustration of an embodiment of the multi-layer system according to the present invention. The flexible multi-layer system 1 successively comprises a photovoltaic module 3, a connecting layer 8, and a sealing membrane 7 which is provided with an armature 10 on its lower surface 7b.
    The photovoltaic module 3 is flexible and comprises a photovoltaic element 4, an upper layer 5 and a lower layer 6. The said photovoltaic module 3 has a well-defined width.
    The photovoltaic element 4 has an upper surface 4a and a lower surface 4b and is arranged between said upper layer 5 of the photovoltaic module 3 and said lower layer 6 of said photovoltaic module 3.
    The sealing membrane 7 has a first side 7a and a second side 7b arranged to be mounted on a support, for example a roof.
    The connecting layer 8 is arranged between the bottom layer 6 of said photovoltaic module 3 and said first side 7a of said sealing membrane 7, and has a greater width than the photovoltaic module 3 so that it extends beyond said photovoltaic module 3, such as is illustrated in Figure 1.
    The bottom surface 4b of said photovoltaic element 4 is in contact with the bottom layer 6 of said photovoltaic module 3.
    Preferably, said photovoltaic element 4 is pre-encapsulated with the aid of an encapsulation agent 9 intended for this purpose, selected from the group consisting of reactive two-component adhesives, for example epoxy adhesives, acrylic adhesives, or polyurethane-based adhesives.
    Said sealing membrane 7 is advantageously selected from the group consisting of a bitumen-based membrane, a polymer membrane, a vegetable membrane and a synthetic membrane.
    The armature 10 of the sealing membrane 7 is of a material selected from the group consisting of polyester, glass fleece, a glass grate, and combinations thereof.
    In this embodiment, the connecting layer 8 has a thickness of 200 µm, the photovoltaic element a thickness of 130 µm, and the sealing membrane a thickness of 1.5 mm.
    The connecting layer 8 also has an adhesion, stronger than 40 N / 50 mm, measured in accordance with standard EN 12316-1, and is made from ethylene vinyl acetate (EVA).
    The bottom layer 6 of the photovoltaic module 3 contains, or is made from, PEN.
    In this preferred embodiment, said sealing membrane 7 has a greater width than said connecting layer 8 and de facto of the photovoltaic module 3.
    For example, the multi-layer system as illustrated in Figure 1 can be fixedly placed on a roof of a house.
    More advantageously, a series of multi-layer systems according to this invention, placed side by side, can cover the surface of a roof.
    Figure 2 is a top view of a multi-layer system according to the present invention with a sealing membrane and two photovoltaic modules.
    Even more advantageously, said sealing membrane 7 has a greater length than said connecting layer 8 and a greater width of said connecting layer 8.
    A multitude of photovoltaic modules can also be integrated with a single sealing membrane, which is particularly advantageous.
    It is also possible to roll up this multi-layer system to sell it in roll form.
    A multi-layer system as illustrated in Figure 2 can also cover the surface of a roof.
    Thanks to the flexibility of the multi-layer system according to the present invention, the system can take the form of the surface on which it is applied, and an easy manipulation of the system according to the present invention is possible especially during application.
    In addition, once delivered to a roof, the delivered system is discreet. This is a real advantage compared to the known systems.
    Figure 3 is a sectional view of the multi-layer system of Figure 2. This multi-layer system contains all the elements described for the multi-layer system of Figure 1.
    Figure 4 is a variant of the multi-layer system according to the present invention.
    This multi-layer system contains all the elements illustrated for the multi-layer system of Figure 1, except that the membrane 7 has no fixture 10 and the photovoltaic module is pre-encapsulated with the aid of an encapsulating means 9.
    The bottom surface 4b of said photovoltaic element 4 is, as illustrated, directly in contact with the bottom layer 6 of said photovoltaic module 3.
    Moreover, the encapsulating means 9 is arranged between said upper layer 5 of said photovoltaic module 3 and the upper surface 4a of said photovoltaic element 4, and extends to the lateral edges of the photovoltaic element 4.
    In this embodiment the multi-layer system thus obtained is more compact, whereby a support such as a roof can be discreetly and reliably covered.
    It should be noted that the present invention is in no way limited to the embodiments as described above and that numerous modifications can be made without departing from the scope of the appended claims.
    权利要求:
    Claims (17)
    [1]
    CONCLUSIONS
    A flexible multi-layer system (1) configured to be mounted on a support, in particular a roof, which multi-layer system (1) comprises: - a flexible photovoltaic module (3) comprising a photovoltaic element (4) with an upper surface (4a) ) and a bottom surface (4b), a top layer (5) and a bottom layer (6), - which photovoltaic element (4) is arranged between said top layer (5) and said bottom layer (6), - which photovoltaic module (3) ) has a specific width; - a sealing membrane (7) with a first side (7a) and a second side (7b) arranged to be applied to said support; and - a connecting layer (8) arranged between the bottom layer (6) of said photovoltaic module (3) and said first side (7a) of said sealing membrane (7), characterized in that said connecting layer (8) has a larger width then shows the photovoltaic module (3) so that it extends beyond said photovoltaic module (3).
    [2]
    The multi-layer system (1) according to claim 1, wherein a part of said bottom surface (4b) of said photovoltaic element (4) is in contact with the bottom layer (6) of said photovoltaic module (3).
    [3]
    The multi-layer system (1) according to claim 1 or claim 2, wherein said photovoltaic element (4) is pre-encapsulated with the aid of an encapsulating means (9).
    [4]
    The multi-layer system (1) according to claim 1 or claim 2, wherein the photovoltaic element (4) comprises an encapsulating means (9) arranged between said upper layer (5) of said photovoltaic module (3) and the upper surface (4a) of said photovoltaic element (4).
    [5]
    The multi-layer system (1) according to claim 4, wherein the photovoltaic element (4) has lateral edges (4c) on which said encapsulant (9) is present.
    [6]
    The multi-layer system (1) according to any of the preceding claims, wherein the sealing membrane (7) is selected from the group consisting of a bitumen-based membrane, a polymer membrane, a vegetable membrane and a synthetic membrane.
    [7]
    The multi-layer system (1) according to any of the preceding claims, wherein said sealing membrane (7) is provided with a fixture (10) of a material selected from the group consisting of polyester, glass fiber and mixtures thereof.
    [8]
    Multi-layer system (1) according to any of the preceding claims, wherein said photovoltaic element (4) has a thickness, understood between 1 and 200 µm, preferably between 1 and 100 µm, more preferably between 1 and 5 p.m.
    [9]
    The multi-layer system (1) according to any of the preceding claims, wherein the connecting layer (8) has a thickness, understood between 50 and 500 µm, preferably between 150 and 300 µm, more preferably between 150 and 250 µm, even more preferably between 100 and 200 µm.
    [10]
    The multi-layer system (1) according to any of the preceding claims, wherein said sealing membrane (7) has a thickness, comprised between 0.5 and 5 mm, preferably between 0.5 and 2.5 mm, more particularly preferably between 0.5 and 2 mm, more preferably between 0.5 and 1.7 mm, advantageously between 1 and 1.6 mm.
    [11]
    The multi-layer system (1) according to any of the preceding claims, wherein said connecting layer (8) has an adhesion, stronger than 40 N / 50 mm, preferably stronger than 50 N / 50 mm, measured in accordance with standard EN 12316-1.
    [12]
    The multi-layer system (1) according to any of the preceding claims, wherein said connecting layer (8) contains ethylene vinyl acetate (EVA).
    [13]
    The multi-layer system (1) according to claim 12, wherein the connecting layer consists of EVA and has an adhesion, stronger than 40 N / 50 mm, preferably stronger than 50 N / 50 mm, measured in accordance with standard EN 1231-1.
    [14]
    The multi-layer system (1) according to any of the preceding claims, wherein said bottom layer (6) of said photovoltaic module (3) is made from a material selected from the group consisting of polyesters, polyolefins, fluoropolymer and blends thereof.
    [15]
    The multi-layer system (1) according to any of the preceding claims, wherein said sealing membrane (7) has a greater width than said connecting layer (8).
    [16]
    The multi-layer system (1) according to claim 17, wherein said sealing membrane (7) has a greater length than said connecting layer (8).
    [17]
    A roof comprising a multi-layer system (1) according to any of the preceding claims.
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    同族专利:
    公开号 | 公开日
    EP3168982A1|2017-05-17|
    NL2016953B1|2017-06-02|
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    WO2015132336A1|2014-03-07|2015-09-11|Saudi Basic Industries Corporation|Modular roof covering element, modular roof covering, and roof|FR3105656A1|2019-12-24|2021-06-25|Total Renewables|SURFACE COVER KIT|
    法律状态:
    2021-04-19| MM| Lapsed because of non-payment of the annual fee|Effective date: 20200630 |
    优先权:
    申请号 | 申请日 | 专利标题
    EP15194536.7A|EP3168982A1|2015-11-13|2015-11-13|Flexible multilayer system|
    EP15194536.7|2015-11-13|
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