EP3463857A1 - Gasdurchlässiges flächengebilde - Google Patents
Gasdurchlässiges flächengebildeInfo
- Publication number
- EP3463857A1 EP3463857A1 EP17745991.4A EP17745991A EP3463857A1 EP 3463857 A1 EP3463857 A1 EP 3463857A1 EP 17745991 A EP17745991 A EP 17745991A EP 3463857 A1 EP3463857 A1 EP 3463857A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer foam
- channels
- successive layers
- ethylene
- foam
- 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- Withdrawn
Links
- 229920000642 polymer Polymers 0.000 claims abstract description 118
- 239000006260 foam Substances 0.000 claims abstract description 111
- 230000035699 permeability Effects 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims description 44
- -1 polyethylenes Polymers 0.000 claims description 38
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 33
- 239000005977 Ethylene Substances 0.000 claims description 33
- 239000004744 fabric Substances 0.000 claims description 24
- 229920001577 copolymer Polymers 0.000 claims description 21
- 239000004698 Polyethylene Substances 0.000 claims description 19
- 229920000573 polyethylene Polymers 0.000 claims description 18
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 12
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 11
- 229920000193 polymethacrylate Polymers 0.000 claims description 10
- 229920003051 synthetic elastomer Polymers 0.000 claims description 10
- 239000005061 synthetic rubber Substances 0.000 claims description 10
- 238000004049 embossing Methods 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 5
- 125000004432 carbon atom Chemical group C* 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 76
- 239000011159 matrix material Substances 0.000 description 33
- 239000007789 gas Substances 0.000 description 24
- 229920000098 polyolefin Polymers 0.000 description 20
- 239000000463 material Substances 0.000 description 15
- 210000004027 cell Anatomy 0.000 description 12
- 229920002635 polyurethane Polymers 0.000 description 11
- 239000004814 polyurethane Substances 0.000 description 11
- 239000004743 Polypropylene Substances 0.000 description 10
- 229920001400 block copolymer Polymers 0.000 description 10
- 229920001903 high density polyethylene Polymers 0.000 description 9
- 239000004700 high-density polyethylene Substances 0.000 description 9
- 229920001155 polypropylene Polymers 0.000 description 9
- 229920001684 low density polyethylene Polymers 0.000 description 7
- 239000004702 low-density polyethylene Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000004800 polyvinyl chloride Substances 0.000 description 7
- 239000011257 shell material Substances 0.000 description 7
- 229920002943 EPDM rubber Polymers 0.000 description 6
- 239000011521 glass Substances 0.000 description 6
- 229920000728 polyester Polymers 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 229920001897 terpolymer Polymers 0.000 description 6
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 5
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 5
- 150000001336 alkenes Chemical class 0.000 description 5
- 229920001971 elastomer Polymers 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000004417 polycarbonate Substances 0.000 description 5
- 229920000515 polycarbonate Polymers 0.000 description 5
- 239000005060 rubber Substances 0.000 description 5
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 5
- RYPKRALMXUUNKS-UHFFFAOYSA-N 2-Hexene Natural products CCCC=CC RYPKRALMXUUNKS-UHFFFAOYSA-N 0.000 description 4
- IAQRGUVFOMOMEM-UHFFFAOYSA-N but-2-ene Chemical compound CC=CC IAQRGUVFOMOMEM-UHFFFAOYSA-N 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 150000001993 dienes Chemical class 0.000 description 4
- 229920006225 ethylene-methyl acrylate Polymers 0.000 description 4
- 238000005187 foaming Methods 0.000 description 4
- 229920001084 poly(chloroprene) Polymers 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 229920003048 styrene butadiene rubber Polymers 0.000 description 4
- 229920001169 thermoplastic Polymers 0.000 description 4
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 239000011324 bead Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005253 cladding Methods 0.000 description 3
- 229920005679 linear ultra low density polyethylene Polymers 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 3
- 229920001748 polybutylene Polymers 0.000 description 3
- 239000013464 silicone adhesive Substances 0.000 description 3
- VSKJLJHPAFKHBX-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical compound CC(=C)C=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 VSKJLJHPAFKHBX-UHFFFAOYSA-N 0.000 description 2
- ILPBINAXDRFYPL-UHFFFAOYSA-N 2-octene Chemical compound CCCCCC=CC ILPBINAXDRFYPL-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 239000004971 Cross linker Substances 0.000 description 2
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 2
- 244000043261 Hevea brasiliensis Species 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- 229920002396 Polyurea Polymers 0.000 description 2
- 229920005830 Polyurethane Foam Polymers 0.000 description 2
- 229920001756 Polyvinyl chloride acetate Polymers 0.000 description 2
- 229920006243 acrylic copolymer Polymers 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- FACXGONDLDSNOE-UHFFFAOYSA-N buta-1,3-diene;styrene Chemical compound C=CC=C.C=CC1=CC=CC=C1.C=CC1=CC=CC=C1 FACXGONDLDSNOE-UHFFFAOYSA-N 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 229920003211 cis-1,4-polyisoprene Polymers 0.000 description 2
- XNMQEEKYCVKGBD-UHFFFAOYSA-N dimethylacetylene Natural products CC#CC XNMQEEKYCVKGBD-UHFFFAOYSA-N 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 2
- BXOUVIIITJXIKB-UHFFFAOYSA-N ethene;styrene Chemical group C=C.C=CC1=CC=CC=C1 BXOUVIIITJXIKB-UHFFFAOYSA-N 0.000 description 2
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 2
- 229920006245 ethylene-butyl acrylate Polymers 0.000 description 2
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 2
- 210000000497 foam cell Anatomy 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 description 2
- QWTDNUCVQCZILF-UHFFFAOYSA-N isopentane Chemical compound CCC(C)C QWTDNUCVQCZILF-UHFFFAOYSA-N 0.000 description 2
- 239000005340 laminated glass Substances 0.000 description 2
- 229920001526 metallocene linear low density polyethylene Polymers 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920003052 natural elastomer Polymers 0.000 description 2
- 229920001194 natural rubber Polymers 0.000 description 2
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920005629 polypropylene homopolymer Polymers 0.000 description 2
- 229920005996 polystyrene-poly(ethylene-butylene)-polystyrene Polymers 0.000 description 2
- 229920000346 polystyrene-polyisoprene block-polystyrene Polymers 0.000 description 2
- 239000005077 polysulfide Substances 0.000 description 2
- 229920001021 polysulfide Polymers 0.000 description 2
- 150000008117 polysulfides Polymers 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 239000011496 polyurethane foam Substances 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 239000003380 propellant Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229920006132 styrene block copolymer Polymers 0.000 description 2
- 229920000468 styrene butadiene styrene block copolymer Polymers 0.000 description 2
- 229920001935 styrene-ethylene-butadiene-styrene Polymers 0.000 description 2
- 229920002725 thermoplastic elastomer Polymers 0.000 description 2
- 229920002397 thermoplastic olefin Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 229920006163 vinyl copolymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004708 Very-low-density polyethylene Substances 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- QYMGIIIPAFAFRX-UHFFFAOYSA-N butyl prop-2-enoate;ethene Chemical compound C=C.CCCCOC(=O)C=C QYMGIIIPAFAFRX-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- AFABGHUZZDYHJO-UHFFFAOYSA-N dimethyl butane Natural products CCCC(C)C AFABGHUZZDYHJO-UHFFFAOYSA-N 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 239000001282 iso-butane Substances 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- 229920000092 linear low density polyethylene Polymers 0.000 description 1
- 239000004707 linear low-density polyethylene Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004005 microsphere Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001281 polyalkylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
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- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 238000005057 refrigeration Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 150000004756 silanes Chemical class 0.000 description 1
- 125000001424 substituent group Chemical group 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
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- 229920001866 very low density polyethylene Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
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- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
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- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B32B3/14—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
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- 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
- B32B5/18—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 features of a layer of foamed material
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- 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
- B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
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- 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
- B32B5/22—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/32—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 the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed at least two layers being foamed and next to each other
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- B32B2266/00—Composition of foam
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- B32B2266/00—Composition of foam
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- B32B2266/0242—Acrylic resin
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- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/025—Polyolefin
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- 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
- B32B2266/00—Composition of foam
- B32B2266/02—Organic
- B32B2266/0214—Materials belonging to B32B27/00
- B32B2266/0278—Polyurethane
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- 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
- B32B2266/00—Composition of foam
- B32B2266/06—Open cell foam
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- 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
- B32B2266/00—Composition of foam
- B32B2266/08—Closed cell foam
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- 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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
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- 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
- B32B2307/724—Permeability to gases, adsorption
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- 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
- B32B2307/732—Dimensional properties
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- 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
- B32B2405/00—Adhesive articles, e.g. adhesive tapes
-
- 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
- B32B2419/00—Buildings or parts thereof
Definitions
- the invention is in the technical field of polymeric fabrics, as they are widely used for example as adhesive materials or simply as auxiliary materials in structural applications.
- a specific application of the invention is in the field of spacers, in particular foamed spacers, in the installation of glass elements in dedicated frames. It sheet, especially foams, proposed with improved gas or vapor permeability.
- a foamed tape which finds use in the installation of glass elements in frame structures, is described for example in US 8,826,611 B2.
- An intermediate layer for laminated glass which has very good deaerating properties in the production of glass laminates and consists of two or more layers laminated together is the subject of US 2016/0101602 A1.
- the object of the invention is therefore to provide such fabrics available, with a high variability in terms of product design (thickness, density, etc.) should be possible. In particular, it should be possible to achieve a high gas permeability even for closed-cell foams.
- a first and general object of the invention is a sheet comprising at least two directly successive layers, wherein the two directly successive layers are each independently a polymer foam or a film and at least one of the two directly successive layers in their facing to the other layer surface Having channels ranging from one of the boundaries delimiting the interface plane formed by the two successive layers to another of these edges, such that the channels have a free volume sufficient for vapor permeability.
- the invention relates to a fabric comprising at least two directly successive layers, wherein the two directly successive layers are each independently a polymer foam or a film and at least one of the two directly successive layers has channels in their surface facing the other layer, which extend from one of the boundary planes formed by the two successive layers to edges parallel to the machine direction and to the other of those edges, such that the channels have sufficient free volume for vapor permeability.
- the sheet of the invention allows a structural solution to the problem of gas permeability by locating dedicated channels within the polymeric structure. This has the consequence that both the material and the other structure of the fabric can be selected largely independently of the gas permeability, the fabric thus can be made very variable and optimized in terms of the desired function.
- a “planar structure” is understood to mean a planar arrangement of a system whose dimensions in one spatial direction (namely the thickness or the height) are significantly smaller than at least in one of the two other spatial directions which define the main extent (length and width), in particular
- the sheet according to the invention comprises at least two directly successive layers. "Direct successive" means that the two layers in the structure of the fabric directly adjoin one another and in particular no further layer is arranged between these two layers.
- the two directly successive layers are each independently a polymer foam or a film.
- a foam is understood as meaning a material with open and / or closed cells distributed over its entire mass, which has a bulk density which is lower than that of the framework substance.
- the term "foam” means, in particular, that the layer in question comprises structures of gas-filled, often spherical or polyhedron-shaped cells which are delimited by liquid, semi-liquid, higher-viscosity or solid cell ridges or their own skin material and which in such a proportion in the relevant layer be present that the density of the foamed layer with respect to the density of the matrix material, that is, the totality of the non-gaseous materials except possibly existing own shell material of the foam cells, from which the layer is constructed, is reduced.
- foam layers in which there are few or no foam cells are located.
- skin layers skin layers
- These production-related layers are not considered according to the invention as separate layers, but attributed to the respective foam or the relevant foamed layer.
- thin unfoamed layers of the matrix material of a foam layer coextruded with these layers are considered to belong to the foam layer rather than a separate layer.
- the framework substance hereinafter also referred to as polymer foam matrix, foam matrix, matrix or matrix material, is according to the invention one or more polymers which may be mixed with additives.
- Open cells are understood to mean voids within the foam that are not completely surrounded by framework substance or their own shell material.
- “Closed cells” are understood to mean cavities that are completely surrounded by framework substance or a proprietary shell material. Open cells thus often result in the formation of channel networks within the foam, through which a certain amount of gas transport may be possible.
- the matrix material of the polymer foam contains at least 30 wt .-%, more preferably at least 50 wt .-% and particularly preferably at least 70 wt .-%, in particular at least 90 wt .-%, each based on the total weight of the polymer foam , one or more polymers.
- Possible polymers of the matrix material include polyolefins such as polyethylenes such as high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and linear ultra low density polyethylene, polypropylene and polybutylene; Vinyl copolymers, eg polyvinyl chloride and polyvinyl acetate; olefinic random or block copolymers, for example ethylene-methyl acrylate copolymers, ethylene-vinyl acetate copolymers and ethylene-propylene copolymers, and also polyalkylenes prepared from monomer mixtures which 1) a first alkene selected from ethylene, propylene or a mixture and 2) a second alkene selected from 1,2-alkenes having 4 to 8 carbon atoms, such as 1, 2-butene, 1, 2-hexene or 1, 2-octene; Acrylonitrile butadiene styrene copolymers; Acrylic polymers and copolymers, eg poly
- Exemplary blends include polypropylene-polyethylene blends, polyurethane-polyolefin blends, polyurethane-polycarbonate blends, and polyurethane-polyester blends. Further, blends of thermoplastic polymers, elastomeric polymers and combinations thereof may be included.
- Further blends may be styrene-butadiene copolymers, polychloroprenes, for example neoprene, nitrile rubbers, butyl rubbers, polysulfide rubbers, cis-1,4-polyisoprene, ethylene-propylene terpolymers, for example EPDM rubber, silicone rubbers, silicone-polyurea block copolymers, polyurethane rubbers, natural rubbers , Acrylate rubbers, thermoplastic rubbers, eg, styrene-butadiene block copolymers, styrene-isoprene-styrene block copolymers, styrene-ethylene / butylene-styrene block copolymers, styrene-ethylene / propylene-styrene block copolymers, thermoplastic polyolefin rubbers, and combinations thereof.
- polychloroprenes for example neo
- the polymers of the matrix material are preferably selected from the group consisting of polyolefins; polyurethanes; Polyvinyl chloride (PVC); Terpolymers of ethylene, propylene and a non-conjugated diene (EPDM); Copolymers of ethylene and a polar group-substituted ethylene; Blends of polyethylene and a polymer of a polar group-substituted ethylene; Poly (meth) acrylates; Blends of poly (meth) acrylate and synthetic rubber and mixtures of two or more of the aforementioned polymers.
- PVC Polyvinyl chloride
- EPDM non-conjugated diene
- Copolymers of ethylene and a polar group-substituted ethylene Blends of polyethylene and a polymer of a polar group-substituted ethylene
- Poly (meth) acrylates Blends of poly (meth) acrylate and synthetic rubber and mixtures of two or more of
- the matrix material of the polymer foam thus preferably contains at least 30% by weight, more preferably at least 50% by weight and particularly preferably at least 70% by weight, in particular at least 90% by weight, in each case based on the total weight of the Matrix material, one or more polymers selected from the group consisting of polyolefins; polyurethanes; Polyvinyl chloride (PVC); Terpolymers of ethylene, propylene and a non-conjugated diene (EPDM); Copolymers of ethylene and a polar group-substituted ethylene; Blends of polyethylene and a polymer of a polar group-substituted ethylene; Poly (meth) acrylates; Blends of poly (meth) acrylate and synthetic rubber and mixtures of two or more of the aforementioned polymers.
- PVC Polyvinyl chloride
- EPDM non-conjugated diene
- the matrix material contains no further polymers except one or more polymers selected from the group consisting of polyolefins; polyurethanes; Polyvinyl chloride (PVC); Terpolymers of ethylene, propylene and a non-conjugated diene (EPDM); Copolymers of ethylene and a ethylene substituted with a polar group; Blends of polyethylene and a polymer of a polar group-substituted ethylene; Poly (meth) acrylates; Blends of poly (meth) acrylate and synthetic rubber and mixtures of two or more of the aforementioned polymers.
- polymers selected from the group consisting of polyolefins; polyurethanes; Polyvinyl chloride (PVC); Terpolymers of ethylene, propylene and a non-conjugated diene (EPDM); Copolymers of ethylene and a ethylene substituted with a polar group; Blends of polyethylene and a polymer of a polar group-
- the polymer base of the polymer foam matrix material is selected from the group consisting of polyethylenes, copolymers of ethylene and a 1, 2-olefin having 4 to 8 carbon atoms, ethylene-vinyl acetate copolymers, blends of polyethylene and an ethylene-vinyl acetate copolymer, Poly (meth) acrylates and blends of poly (meth) acrylate and synthetic rubber.
- polymer base is meant the polymer or class of polymer having the largest mass fraction of the total of polymers contained in the builder of the foam.
- the matrix material of the polymer foam contains at least one polymer selected from polyolefins and copolymers of ethylene and a polar group-substituted ethylene.
- the proportion of the total of all polymers selected from polyolefins and copolymers of ethylene and a polar group-substituted ethylene on the matrix material of the polymer foam is at least 30% by weight, more preferably at least 50% by weight and most preferably at least 70% by weight. -%, in particular at least 80 wt .-%, for example at least 90 wt .-%, each based on the total weight of the matrix material.
- the matrix material contains no further polymers other than one or more polymers selected from polyolefins and copolymers of ethylene and a polar group-substituted ethylene.
- the matrix material of the polymer foam contains at least one copolymer of ethylene and a polar group-substituted ethylene.
- the proportion of the totality of all copolymers of ethylene and one polar group-substituted ethylene on the matrix material of the polymer foam is at least 30% by weight, more preferably at least 50% by weight and particularly preferably at least 70% by weight, especially at least 80 wt .-%, for example at least 90 wt .-%, each based on the total weight of the matrix material.
- the matrix material contains no further polymers other than one or more copolymers of ethylene and a polar group-substituted ethylene.
- a "polyolefin” is understood according to the invention to mean a polymer of the general structure - [CH 2 -CR 1 R 2 -] n -, in which R 1 and R 2, independently of one another, denote a hydrogen atom or a linear or branched saturated aliphatic or cycloaliphatic group is preferably polyethylene, polypropylene, polybutylene or a mixture of these
- the polyethylene may contain one or more of the known polyethylene types such as HDPE, LDPE, LLDPE, VLDPE, VLLDPE, MDPE (medium density PE), metallocene PE types such as mLLDPE and mHDPE, blends of these polyethylene types, and mixtures thereof
- the polypropylene is preferably a crystalline polypropylene, more preferably a homopolypropylene (hPP)
- the polymer foam contains no further polymers other than one or more polyolefins.
- a copolymer of ethylene and a polar group-substituted ethylene is meant a polymer of the general structure - [CH 2 -CR 3 R 4 -] n - wherein R 3 or R 4 is a hydrogen atom and the remaining substituent is at least one Oxygen atom-containing group.
- the copolymer of ethylene and a polar group-substituted ethylene is an ethylene-vinyl acetate copolymer (EVA), an ethylene-methyl acrylate copolymer (EMA), an ethylene-ethyl acrylate copolymer (EEA), an ethylene-acrylic acid copolymer (EAA), an ethylene-butyl acrylate copolymer (EBA) or a mixture of these.
- EVA preferably has a vinyl acetate content of from 1 to 70% by weight, more preferably from 3 to 30% by weight, especially from 5 to 20% by weight.
- the foamed layer contains no further polymers other than one or more copolymers of ethylene and a polar group-substituted ethylene.
- the copolymer of ethylene and a polar group-substituted ethylene is an ethylene-vinyl acetate copolymer (EVA).
- EVA ethylene-vinyl acetate copolymer
- the matrix material of the polymer foam particularly preferably contains at least one ethylene-vinyl acetate copolymer (EVA).
- EVA ethylene-vinyl acetate copolymer
- the proportion of the entirety of all ethylene-vinyl acetate copolymers in the matrix material of the polymer foam is at least 30% by weight, more preferably at least 50% by weight and particularly preferably at least 70% by weight, in particular at least 80% by weight, for example at least 90 wt .-%, each based on the total weight of the matrix material.
- the matrix material contains no further polymers except one or more ethylene-vinyl acetate copolymers (EVA).
- the matrix material of the polymer foam is crosslinked.
- the crosslinking preferably takes place before the foaming of the matrix material.
- Matrix materials containing polymers selected from polyolefins and copolymers of ethylene and a polar group-substituted ethylene are preferably crosslinked with electron beams.
- chemical crosslinking methods for example crosslinking via grafted-on silane radicals with hydrolyzable groups, which can then react with one another under the influence of moisture and catalysis; further crosslinking via added silanes containing a radically polymerizable double bond and capable of reacting with radicals formed in the polymer chains; and a crosslinking via added peroxides, which also react with radicals.
- At least one of the two directly successive layers of the fabric according to the invention is a polymer foam.
- the invention also makes it possible to utilize the advantages of foams in terms of material weight reduction even in applications with the requirement "gas-permeable.”
- at least one of the two directly successive layers of the fabric according to the invention is a polymer foam, and the polymer foam is a
- a "closed-cell foam” is understood as meaning a foam in which essentially all the cavities (cells) are completely surrounded by framework material, so that, in particular, no channel networks within the foam can be formed which promote gas transport through the foam Allow layer through.
- a closed-cell foam is usually very little permeable to gases and vapors.
- At least one of the two directly successive layers is a polymer foam, and this polymer foam has the channels.
- both directly successive layers are each independently a polymer foam.
- the polymer foams of the two layers may be identical or different from each other in this case.
- the polymer foams of the two layers can be chemically and / or physically identical, but differ from one another in terms of dimensions, for example with regard to the thickness of the relevant layer.
- both directly successive layers are each independently a polymer foam, and only one of the two directly successive layers has the channels.
- both directly successive layers are each independently a closed-cell polymer foam.
- the thickness of a sheet according to the invention, in which the two directly successive layers are each independently a polymer foam, is preferably 50 ⁇ m to 20 mm, more preferably 800 ⁇ m to 15 mm, in particular 2 to 13 mm.
- the fabric of the invention allows a closed-cell foam system, the one or two-dimensional gas permeability along the interface between the two directly successive layers depending on the design, which readily beyond the level of an open-cell Foam structure can lie.
- the transport of the gas molecules does not have to be done by compressed polymer material, but can be done easily through continuous polymer-free Kanaln networks.
- the foaming of the polymer foam matrix material may, in principle, have been effected in any conventional manner, for example by an added propellant gas or by a chemical foaming agent which decomposes at a certain temperature during processing to form gas.
- microballoons is understood as meaning elastic hollow microspheres which are expandable in their ground state and which have a thermoplastic polymer shell These spheres are filled with low-boiling liquids or liquefied gas Hydrocarbons of lower alkanes, for example isobutane or Isopentane is commonly used, which is included as a liquefied gas under pressure in the polymer shell.
- microballoons By acting on the microballoons, in particular by a heat, softens the outer polymer shell. At the same time, the liquid propellant gas in the casing changes into its gaseous state. The microballoons expand irreversibly and expand in three dimensions. The expansion is completed when the internal and external pressures equalize. As the polymeric shell is preserved, this results in a closed-cell foam.
- microballoons there are a variety of types of microballoons available commercially, which differ essentially by their size (6 to 45 ⁇ diameter in the unexpanded state) and their start-up temperatures required for expansion (75 to 220 ° C).
- Unexpanded types of microballoons are also available as an aqueous dispersion having a solids or microballoon content of about 40 to 45 percent by weight, and also as polymer bound microballoons (masterbatches), for example in ethylene vinyl acetate having a microballoon concentration of about 65 percent by weight. Both the microballoon dispersions and the masterbatches, like the unexpanded microballoons, are suitable as such for the production of polymer foams according to the invention.
- Polymer foams according to the invention can also be produced with so-called pre-expanded microballoons. In this group, the expansion takes place even before the mixing into the polymer matrix.
- Polymer foams according to the invention can also be produced with foamed particles, that is to say with expanded or expandable beads of, in particular, polystyrene, polypropylene, thermoplastic polyurethane or cellulose acetate, for which the term "beads" has prevailed in English, ie particles of already foamed plastics are obtained
- the particles can also be added to the polymer matrix without foaming and then be foamed.
- the polymer foam can also consist of thermally bonded, in particular welded, possibly pre-expanded "beads", so that in this If there is no more surrounding matrix.
- the density of a polymer foam according to the invention is preferably less than 500 kg / m 3 , more preferably less than 350 kg / m 3 , in particular from 90 to 250 kg / m 3 .
- a "film” is understood to mean a flat, flexible, windable web whose material base is generally formed by one or more polymer (s) .
- Possible polymers of a film according to the invention include polyolefins, for example polyethylenes, such as high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and linear ultra low density polyethylene, polypropylene and polybutylene; vinyl copolymers such as polyvinyl chloride and polyvinyl acetate; olefinic copolymers such as ethylene-methyl acrylate copolymers, ethylene-vinyl acetate copolymers and ethylene Acrylonitrile-butadiene-styrene copolymers, acrylic polymers and
- Blends may also be thermoplastic R polymers, elastomeric polymers and combinations thereof. Further blends can be styrene-butadiene copolymers, polychloroprenes, for example neoprene, nitrile rubbers, butyl rubbers, polysulfide rubbers, cis-1,4-polyisoprene, ethylene-propylene terpolymers, for example EPDM rubber, silicone rubbers, silicone-polyurea block copolymers, polyurethane rubbers, natural rubbers , Acrylate rubbers, thermoplastic rubbers, eg, styrene-butadiene block copolymers, styrene-isoprene-styrene block copolymers, styrene-ethylene / butylene-styrene block copolymers, styrene-ethylene / propylene-styrene block copolymers), thermoplastic polyolef
- the polymer base of a film according to the invention is preferably selected from the group consisting of polyvinyl chloride (PVC), polyethylene terephthalate (PET), polyurethanes, polyolefins, polybutylene terephthalate (PBT), polycarbonates, polymethyl methacrylate (PMMA), polyvinyl butyral (PVB), synthetic rubbers, ionomers and mixtures of two or more of the polymers listed above.
- the polymer base of the film is particularly preferably selected from the group consisting of polyvinyl chloride, polyethylene terephthalate, polyurethanes, polyolefins and mixtures of two or more of the polymers listed above.
- polyurethanes is meant, in a broad sense, polymeric substances in which repeating units are linked together by urethane groups -NH-CO-O-, and preferably, the polyurethanes are thermoplastic ones polyurethanes; in particular polyester-based thermoplastic polyurethanes based on aliphatic and / or aromatic polyesters; for example, with hydroxy aromatics terminated thermoplastic polyurethanes.
- the polyurethanes can be linked to one another by crosslinkers, for example isocyanate crosslinkers.
- the synthetic rubbers include in particular AB and ABA block copolymers, as well as star-shaped and radial block copolymers. Most preferably, the synthetic rubbers are elastomeric block copolymers having a rubbery midblock and high glass transition temperature endblocks.
- Suitable synthetic rubbers include, for example, unsaturated rubbery moiety types such as styrene-butadiene-styrene (SBS) and styrene-isoprene-styrene (SIS) block copolymers; Also included are types having saturated olefin rubber midblock, for example, styrene-ethylene-butadiene-styrene (SEBS) and styrene-ethylene-propylene-styrene (SEPS) block copolymers.
- SBS unsaturated rubbery moiety types
- SIS styrene-isoprene-styrene
- SEBS styrene-ethylene-butadiene-styrene
- SEPS styrene-ethylene-propylene-styrene
- the polymer base of the film consists of one or more polyolefins.
- the polyolefins particularly preferably include polyethylenes, polypropylenes, olefin copolymers and blends of the aforementioned polymers.
- Preferred polyethylene types are, for example, ultrahigh molecular weight polyethylenes (UHMWPE), high density polyethylene (HDPE), low density polyethylene (LDPE), linear low density polyethylene (LLDPE) and linear ultra low density polyethylene.
- UHMWPE ultrahigh molecular weight polyethylenes
- HDPE high density polyethylene
- LDPE low density polyethylene
- LLDPE linear low density polyethylene
- the polymer base of the film is one or more high density polyethylene (s) (HDPE).
- Preferred types of polypropylene are homopolymer polypropylene (h-PP) and impact PP.
- Preferred olefin copolymers are ethylene-propylene copolymers, in particular random-ethylene-propylene copolymers (r-PP) and terpolymers of ethylene, propylene and a non-conjugated diene (EPDM rubbers); and polyolefins prepared from monomer mixtures comprising 1) a first alkene selected from ethylene, propylene or a mixture thereof, and 2) a second alkene selected from 1,2-alkenes having from 4 to 8 carbon atoms, such as 1,2-butene; 1, 2-hexene or 1, 2-octene include.
- Blends of the aforementioned polyolefins are also preferred base materials of the film.
- Preferred blends are polypropylene-polyethylene blends.
- At least one of the two directly successive layers has, in its surface facing the other layer, channels which originate from one of the interface planes formed by the two successive layers bordering margins to another of these edges, such that the channels have a sufficient volume for a vapor permeability free volume.
- a channel according to the invention is a beginning in the surface of the film or the polymer foam, deliberately introduced and with respect to their dimensions beyond the molecular area protruding recess within the film or the polymer foam understood, which can basically have any shape and depth, as long as they provides sufficient for a gas permeability free volume.
- the recess does not extend to the bottom of the relevant film or polymer foam, i. it is still on their floor still foil or foam material available.
- the shape of the channels is basically uncritical; It may, for example, be oriented at a rectangular to U-shaped cross-section.
- the gas permeability of the fabric according to the invention is preferably less than 0.05 m, more preferably less than 0.03 m, in each case as equivalent air layer thickness (sd) according to DIN EN ISO 12572 with a layer thickness of the specimen of 1 mm.
- the gas permeability of the fabric according to the invention is therefore preferably so high that an equivalent air layer thickness (sd) according to DIN EN ISO 12572 at a sample thickness of 1 mm less than 0.05 m, more preferably less than 0.03 m, established.
- a polymer foam has the channels, these preferably have a width of 0.5 to 10 mm, more preferably from 0.8 to 5 mm, particularly preferably from 1 to 3 mm. If a film has the channels, these preferably have a width of 10 to 150 ⁇ m, more preferably from 15 to 130 ⁇ m, in particular from 20 to 120 ⁇ m.
- a polymer foam has the channels, they preferably have a depth of 0.1 to 2 mm, more preferably from 0.3 to 1, 5 mm, particularly preferably from 0.5 to 1, 3 mm. If a film has the channels, these preferably have a depth of 7 to 25 ⁇ m, more preferably 10 to 20 ⁇ m.
- a polymer foam has the channels, these preferably have a lateral spacing of 2 to 10 mm from one another, more preferably from 4 to 8 mm, particularly preferably from 5 to 7 mm. If a film has the channels, they preferably have a lateral distance of 20 to 1000 ⁇ from each other. The lateral distance corresponds the distance of a particular point within the channel structure from the corresponding point within the structure of the next adjacent channel.
- the proportion of the cross-sectional area of the channels according to the invention at the cross-sectional area resulting from the same section of the film containing these channels or the polymer foam containing these channels is preferably 0.3 to 30%, more preferably 1 to 25%, in particular 4 to 1 1% , As a cross-sectional area in the above sense, an area formed by a section in the plane perpendicular to the orientation of the channels and aligned in the z-direction at any point of the sheet according to the invention is considered.
- the proportion of the cross-sectional area of the channels according to the present invention at the cross-sectional area of the polymer foam containing these channels preferably varies depending on the thickness of the polymer foam or the polymer foam layer.
- the aforesaid proportion is preferably 8 to 14% for a thickness of the foam of 2 to 4 mm, 6 to less than 8% for a thickness of the foam of more than 4 to 6 mm, and a thickness of the foam of more than 6 to 8 mm 4.5 to less than 6% and with a thickness of the foam of more than 8 to 9 mm 2 to less than 4.5%.
- FIG. 1 shows a channel-containing layer of the sheet according to the invention without the second layer in contact with this layer.
- FIG. 2 shows a side view of a fabric according to the invention with a lower layer containing the channels and a cover layer directly resting thereon.
- the channels extend in both figures at right angles transversely to the machine direction, the cross section described above would thus correspond here to a section in the plane defined by the machine direction and the z-direction plane.
- the reference numbers have the following meaning:
- the production of a fabric according to the invention can be carried out in a substantially two-stage process, which can be designed continuously.
- Another object of the invention is a process for producing a sheet according to the invention, the
- the embossing of the channels in the surface of one of the films or polymer foam layers is preferably carried out by heating the film or the polymer foam to the thermal deformability and subsequent deformation corresponding to the surface structure of the under pressure on the surface acting embossing tool.
- the embossing tool can be, for example, a stamp or a roller, which are preferably made of metal. Alternatively, the embossing tool can be heated and act on a cold foam or a cold film.
- the method according to the invention therefore additionally comprises heating at least one surface of the second web and laminating or laminating the two webs on one another in such a way that the two heated surfaces come into contact with one another.
- the sheet according to the invention can be used as a carrier for a single-sided or double-sided adhesive tape. It is in principle possible for one or both polymer foam layer (s) of the sheet according to the invention to be pressure sensitive, provided, of course, that the fabric contains at least one Polymer foam layer. It is also possible that one or both sides on the main surfaces of the sheet according to the invention a pressure-sensitive adhesive is applied.
- the nature or configuration of this pressure-sensitive adhesive is in principle arbitrary, in principle all known and available pressure-sensitive adhesives can be used. As is generally customary, the pressure-sensitive adhesives - in particular when the adhesive tape is wound up into a roll - can be protected with a so-called release liner.
- the surfaces in question are preferably pretreated by means of physical methods such as corona, flame treatment, plasma, aerosol or provided with a primer.
- a corona treatment in a nitrogen atmosphere is preferably used.
- the sheet according to the invention is preferably used as a spacer in structural glazing or curtain wall construction applications.
- glass elements or cladding panels are glued in particular with structural silicone adhesives in frame structures.
- the spacer ensures the correct distance adjustment between glass or cladding element and frame and occasionally serves as a barrier for introduced liquid reactive silicone. It usually remains in the structure even after the curing of the structural adhesive, but then no longer has a supporting function.
- at least one of the two directly successive layers of the fabric according to the invention is preferably a polymer foam, more preferably both directly successive layers are independently of one another a polymer foam.
- the foams are preferably UV stabilized.
- the foams are colored black or gray. They preferably have a low thermal conductivity, which has a favorable effect on the U value of the entire glass or cladding element.
- the spacers can be made electrically dissipative or electrically conductive as needed.
- the sheet according to the invention has good adhesion to low-energy surfaces having.
- the sheet according to the invention can also be used in the assembly of electronic devices, in particular as a component of adhesive tapes, for example as gas-permeable mounting tape in the assembly of smartphones.
- sheet according to the invention are in building construction, here in particular for ventilation, venting or pressure equalization, but also for the removal of condensation water and moisture in general, e.g. in floor constructions of wood; in vehicle construction, e.g. in the automotive industry and in the production of trains, in particular for sound and heat insulation in conjunction with a ventilation function; in aircraft construction, e.g.
- Sheets were made of two interconnected polymer foam layers, one of which was provided with channels. The composite was effected so that the channels faced the second polymer foam layer.
- polymer foam layers commercially available foams were used, which are given in the following table.
- the channels were created with an anodized aluminum stamping tool.
- the foam was first heated to the extent that it was thermally deformable. Sufficient deformability was achieved after 20 seconds at 160 ° C. Only then was pressed the cold stamping tool into the foam. During this 60 second embossing, the foam lost its thermoformability and the embossing negative consequently remained dimensionally stable.
- the embossing process took place under a pressure of 20 kPa, the maximum embossing depth was simultaneously limited by machine boundaries / spacers. All channels were embossed to be perpendicular to the machine direction (as shown in Figs. 1 and 2).
- the polymer foam layers were bonded together by thermal welding.
- the surface of one of the layers to be joined was brought into a sealable state by heating a thin, near-surface layer of this foam through a hot air stream at a temperature of about 200 ° C.
- the duration of this treatment was a few seconds and immediately preceded the application of the second foam layer. Rolling on with light pressure then ensured that all contact surfaces were bonded cohesively.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016209729.6A DE102016209729A1 (de) | 2016-06-02 | 2016-06-02 | Gasdurchlässiges Flächengebilde |
PCT/EP2017/063150 WO2017207625A1 (de) | 2016-06-02 | 2017-05-31 | Gasdurchlässiges flächengebilde |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3463857A1 true EP3463857A1 (de) | 2019-04-10 |
Family
ID=59501385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17745991.4A Withdrawn EP3463857A1 (de) | 2016-06-02 | 2017-05-31 | Gasdurchlässiges flächengebilde |
Country Status (6)
Country | Link |
---|---|
US (1) | US20200376800A1 (de) |
EP (1) | EP3463857A1 (de) |
KR (1) | KR20190013974A (de) |
CN (1) | CN109476114A (de) |
DE (1) | DE102016209729A1 (de) |
WO (1) | WO2017207625A1 (de) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050158517A1 (en) * | 2004-01-15 | 2005-07-21 | Sealed Air Corporation (Us) | Corrugated foam/film laminates for use as floor underlayment |
DE202004021106U1 (de) * | 2004-05-05 | 2007-01-04 | Tesa Ag | Selbstklebend ausgerüsteter Streifen für den Transportschutz |
DE102008038473A1 (de) * | 2008-08-20 | 2010-02-25 | Tesa Se | Selbstklebend ausgerüsteter Streifen für den Transportschutz |
US8613120B2 (en) * | 2009-09-18 | 2013-12-24 | Carpenter Co. | Cushioning device and method of manufacturing |
SG191110A1 (en) | 2010-12-23 | 2013-07-31 | Saint Gobain Performance Plast | Structural glazing spacer |
US9169687B2 (en) | 2011-08-26 | 2015-10-27 | Saint-Gobain Glass France | Insulating glazing with thermal protection insulating panel |
US20160101602A1 (en) | 2013-08-01 | 2016-04-14 | Sekisui Chemical Co., Ltd. | Laminated glass interlayer and laminated glass |
EP2933089A1 (de) * | 2014-04-14 | 2015-10-21 | Jowat SE | Kaschierverfahren mit rasterförmigem Klebstoffauftrag |
CN203815713U (zh) * | 2014-04-09 | 2014-09-10 | 李志营 | 一种透气防护医用胶带 |
-
2016
- 2016-06-02 DE DE102016209729.6A patent/DE102016209729A1/de not_active Withdrawn
-
2017
- 2017-05-31 KR KR1020187037965A patent/KR20190013974A/ko not_active Application Discontinuation
- 2017-05-31 EP EP17745991.4A patent/EP3463857A1/de not_active Withdrawn
- 2017-05-31 CN CN201780043648.9A patent/CN109476114A/zh active Pending
- 2017-05-31 US US16/305,710 patent/US20200376800A1/en not_active Abandoned
- 2017-05-31 WO PCT/EP2017/063150 patent/WO2017207625A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
WO2017207625A1 (de) | 2017-12-07 |
KR20190013974A (ko) | 2019-02-11 |
US20200376800A1 (en) | 2020-12-03 |
CN109476114A (zh) | 2019-03-15 |
DE102016209729A1 (de) | 2017-12-07 |
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