EP3994965A1 - Verfahren zur herstellung eines gegenüber elektromagnetischer strahlung abgeschirmten bauteils - Google Patents
Verfahren zur herstellung eines gegenüber elektromagnetischer strahlung abgeschirmten bauteilsInfo
- Publication number
- EP3994965A1 EP3994965A1 EP20735363.2A EP20735363A EP3994965A1 EP 3994965 A1 EP3994965 A1 EP 3994965A1 EP 20735363 A EP20735363 A EP 20735363A EP 3994965 A1 EP3994965 A1 EP 3994965A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- polymer
- component
- polymer material
- materials
- mixtures
- 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.)
- Pending
Links
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- VPKDCDLSJZCGKE-UHFFFAOYSA-N methanediimine Chemical compound N=C=N VPKDCDLSJZCGKE-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000006082 mold release agent Substances 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 229910052901 montmorillonite Inorganic materials 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- BMBPXYSSIVAHDP-UHFFFAOYSA-N n'-(1-methylcyclohexyl)methanediamine Chemical compound NCNC1(C)CCCCC1 BMBPXYSSIVAHDP-UHFFFAOYSA-N 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- DIOQZVSQGTUSAI-UHFFFAOYSA-N n-butylhexane Natural products CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 description 1
- NIZAUQOTOZXUNA-UHFFFAOYSA-N n-methyl-4-[2-[4-(methylamino)phenyl]propan-2-yl]aniline Chemical compound C1=CC(NC)=CC=C1C(C)(C)C1=CC=C(NC)C=C1 NIZAUQOTOZXUNA-UHFFFAOYSA-N 0.000 description 1
- JGGQWILNAAODRS-UHFFFAOYSA-N n-methyl-4-[4-(methylamino)phenyl]aniline Chemical compound C1=CC(NC)=CC=C1C1=CC=C(NC)C=C1 JGGQWILNAAODRS-UHFFFAOYSA-N 0.000 description 1
- ZMVMYBGDGJLCHV-UHFFFAOYSA-N n-methyl-4-[[4-(methylamino)phenyl]methyl]aniline Chemical compound C1=CC(NC)=CC=C1CC1=CC=C(NC)C=C1 ZMVMYBGDGJLCHV-UHFFFAOYSA-N 0.000 description 1
- 239000011234 nano-particulate material Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000002071 nanotube Substances 0.000 description 1
- OKBVMLGZPNDWJK-UHFFFAOYSA-N naphthalene-1,4-diamine Chemical compound C1=CC=C2C(N)=CC=C(N)C2=C1 OKBVMLGZPNDWJK-UHFFFAOYSA-N 0.000 description 1
- KQSABULTKYLFEV-UHFFFAOYSA-N naphthalene-1,5-diamine Chemical compound C1=CC=C2C(N)=CC=CC2=C1N KQSABULTKYLFEV-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- DDLUSQPEQUJVOY-UHFFFAOYSA-N nonane-1,1-diamine Chemical compound CCCCCCCCC(N)N DDLUSQPEQUJVOY-UHFFFAOYSA-N 0.000 description 1
- SXJVFQLYZSNZBT-UHFFFAOYSA-N nonane-1,9-diamine Chemical compound NCCCCCCCCCN SXJVFQLYZSNZBT-UHFFFAOYSA-N 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- AEIJTFQOBWATKX-UHFFFAOYSA-N octane-1,2-diol Chemical compound CCCCCCC(O)CO AEIJTFQOBWATKX-UHFFFAOYSA-N 0.000 description 1
- 239000012766 organic filler Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 150000002924 oxiranes Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 238000007649 pad printing Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- MSSNHSVIGIHOJA-UHFFFAOYSA-N pentafluoropropane Chemical compound FC(F)CC(F)(F)F MSSNHSVIGIHOJA-UHFFFAOYSA-N 0.000 description 1
- KJOMYNHMBRNCNY-UHFFFAOYSA-N pentane-1,1-diamine Chemical compound CCCCC(N)N KJOMYNHMBRNCNY-UHFFFAOYSA-N 0.000 description 1
- WCVRQHFDJLLWFE-UHFFFAOYSA-N pentane-1,2-diol Chemical compound CCCC(O)CO WCVRQHFDJLLWFE-UHFFFAOYSA-N 0.000 description 1
- RUOPINZRYMFPBF-UHFFFAOYSA-N pentane-1,3-diol Chemical compound CCC(O)CCO RUOPINZRYMFPBF-UHFFFAOYSA-N 0.000 description 1
- GLOBUAZSRIOKLN-UHFFFAOYSA-N pentane-1,4-diol Chemical compound CC(O)CCCO GLOBUAZSRIOKLN-UHFFFAOYSA-N 0.000 description 1
- XLMFDCKSFJWJTP-UHFFFAOYSA-N pentane-2,3-diol Chemical compound CCC(O)C(C)O XLMFDCKSFJWJTP-UHFFFAOYSA-N 0.000 description 1
- GTCCGKPBSJZVRZ-UHFFFAOYSA-N pentane-2,4-diol Chemical compound CC(O)CC(C)O GTCCGKPBSJZVRZ-UHFFFAOYSA-N 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 150000004986 phenylenediamines Chemical class 0.000 description 1
- 229920000233 poly(alkylene oxides) Polymers 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 229920006260 polyaryletherketone Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000011116 polymethylpentene Substances 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- ZYHMJXZULPZUED-UHFFFAOYSA-N propargite Chemical compound C1=CC(C(C)(C)C)=CC=C1OC1C(OS(=O)OCC#C)CCCC1 ZYHMJXZULPZUED-UHFFFAOYSA-N 0.000 description 1
- 229960000380 propiolactone Drugs 0.000 description 1
- AOHJOMMDDJHIJH-UHFFFAOYSA-N propylenediamine Chemical compound CC(N)CN AOHJOMMDDJHIJH-UHFFFAOYSA-N 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000012744 reinforcing agent Substances 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 229920006012 semi-aromatic polyamide Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000013464 silicone adhesive Substances 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 235000000346 sugar Nutrition 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 1
- 229960000909 sulfur hexafluoride Drugs 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- AUHHYELHRWCWEZ-UHFFFAOYSA-N tetrachlorophthalic anhydride Chemical compound ClC1=C(Cl)C(Cl)=C2C(=O)OC(=O)C2=C1Cl AUHHYELHRWCWEZ-UHFFFAOYSA-N 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 239000004634 thermosetting polymer Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000013008 thixotropic agent Substances 0.000 description 1
- RUELTTOHQODFPA-UHFFFAOYSA-N toluene 2,6-diisocyanate Chemical compound CC1=C(N=C=O)C=CC=C1N=C=O RUELTTOHQODFPA-UHFFFAOYSA-N 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 1
- 239000010455 vermiculite Substances 0.000 description 1
- 229910052902 vermiculite Inorganic materials 0.000 description 1
- 235000019354 vermiculite Nutrition 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000002025 wood fiber Substances 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
- B29C45/164—The moulding materials being injected simultaneously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0013—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fillers dispersed in the moulding material, e.g. metal particles
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F297/00—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer
- C08F297/02—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type
- C08F297/04—Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K13/00—Use of mixtures of ingredients not covered by one single of the preceding main groups, each of these compounds being essential
- C08K13/04—Ingredients characterised by their shape and organic or inorganic ingredients
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
- C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D153/00—Coating compositions based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Coating compositions based on derivatives of such polymers
- C09D153/02—Vinyl aromatic monomers and conjugated dienes
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0047—Casings being rigid plastic containers having conductive particles, fibres or mesh embedded therein
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/0083—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive non-fibrous particles embedded in an electrically insulating supporting structure, e.g. powder, flakes, whiskers
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0073—Shielding materials
- H05K9/0081—Electromagnetic shielding materials, e.g. EMI, RFI shielding
- H05K9/009—Electromagnetic shielding materials, e.g. EMI, RFI shielding comprising electro-conductive fibres, e.g. metal fibres, carbon fibres, metallised textile fibres, electro-conductive mesh, woven, non-woven mat, fleece, cross-linked
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2009/00—Use of rubber derived from conjugated dienes, as moulding material
- B29K2009/06—SB polymers, i.e. butadiene-styrene polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2305/00—Use of metals, their alloys or their compounds, as reinforcement
- B29K2305/08—Transition metals
- B29K2305/12—Iron
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2307/00—Use of elements other than metals as reinforcement
- B29K2307/04—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2507/00—Use of elements other than metals as filler
- B29K2507/04—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0003—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular electrical or magnetic properties, e.g. piezoelectric
- B29K2995/0005—Conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/001—Conductive additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/06—Elements
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/30—Applications used for thermoforming
Definitions
- the present invention relates to a method of making a
- Electromagnetic waves have an electric and a magnetic field component.
- the waves emitted by electronic components can cause mutual electromagnetic interference
- Electric vehicles have high performance electric drives integrated in a very small space and controlled by electronic components, whereby the individual components must not interfere with one another.
- EMC electromagnetic compatibility
- electromagnetic interference is the effect of electromagnetic waves on electrical circuits, devices, systems or
- the frequency range relevant for EMI shielding is generally between 100 Hz and 100 GHz. The with by shielding a radiated
- Electromagnetic wave attenuation is usually composed of a reflection and an absorption in all shielding principles. During absorption, the electromagnetic wave loses energy, which in
- Frequency range independent of the material thickness can occur both on the front and on the back and within the material.
- the electrical conductivity behavior of the materials can usually be assessed directly
- the lower frequency range can be used to assess the Shielding the relative permeability and, in the upper frequency range, the reflection and also the vibration absorption.
- Electromagnetic compatibility of the components as well as energy saving and thermal management are the challenges for a successful
- Electric motors and various control units require the provision of electrical power in the form of alternating and three-phase current.
- the electronic components send out unwanted magnetic, electrical and electromagnetic vibrations of different frequencies, which can be a source of interference for other control units, or the function of the control unit itself is disturbed by the vibrations emitted by the other components. So that the electronic
- shielding material has two major disadvantages: its high weight and its high cost. So there is a great need for
- plastic composites composite materials, compounds which have a matrix of at least one polymer component and at least one filler with shielding properties.
- These can be in the form of coatings, insulating tapes, moldings, etc.
- electrically conductive fillers can be dispersed in a matrix made of at least one non-conductive polymer.
- composition that dispersed magnetic nanoparticles in a
- the polymer matrix contains a highly branched nitrogen-containing polymer, specifically a polyurethane based on a hyperbranched melamine with polyol functionality being used.
- US Pat. No. 5,696,196 describes a coating composition for shielding plastic against electromagnetic interference (EMI) and radio frequency interference (RFI).
- the composition described comprises an aqueous dispersion of a thermoplastic emulsion, an aqueous urethane dispersion, a glycol-based coalescing solvent, silver-plated copper flake, conductive clay and defoamer.
- US 2007/0056769 A1 describes a polymeric composite material for shielding electromagnetic radiation, which comprises a non-conductive polymer, an inherently conductive polymer and an electrically conductive filler. To produce the composite, the polymer components are brought into close contact. Suitable non-conductive polymers are elastomeric, thermoplastic and thermosetting polymers, which can be selected from a large number of different polymer classes. In the examples according to the invention, only a polystyrene / polyaniline blend filled with nickel-coated carbon fibers is used.
- the unpublished DE 10 2018 115 503 describes a
- Composition for shielding electromagnetic radiation comprising a) at least one conductive filler and b) a polymer matrix containing at least one urea group-containing polyurethane.
- EMI-shielding substrate from this composition and at least one further polymer material by an injection molding process.
- DE 10 2014 015 870 describes a chassis component for motor vehicles made from a short fiber-reinforced plastic, including a
- the carbon-reinforced plastic can act with a fiber length between 0.1 to 1 mm.
- the chassis component is manufactured by producing the core in a first injection molding process and in a second
- JP FI07-186190 describes a seven-layer injection-molded article using four types of thermoplastic resins.
- the first and seventh layers, i.e. H. the surface layers consist of polyolefin resins.
- the second and sixth layers are a light-shielding layer made of polyolefin resins colored by carbon black or light-absorbing fillers.
- the second layer is an oxygen barrier resin.
- the third and fifth layers are maleic anhydride graft modified polyolefin resin.
- JP 2005-229007 describes a flat case, the electromagnetic
- Has shielding properties are produced by injection molding using a thin film web with at least one conductive layer and an adhesive layer or by thermoforming.
- the conductive layer is either a layer of nickel, aluminum, silver, gold, steel or brass obtained by metal vapor deposition or a metal foil made of aluminum or copper.
- WO 2014/175973 describes a method for setting up an EMI shield for an electronic circuit board, an electrically conductive thermoplastic film being used which contains a previously applied electrically conductive adhesive composition.
- the adhesive composition includes a silicone adhesive, a compatible silane, and electrically conductive particles or fibers.
- WO 2010/036563 describes an EMI shield with at least one compartment for enclosing the circuitry of an electronic device.
- the shield includes a resilient layer of thermally deformable, electrically conductive foam, the layer having a first surface and a second surface defining a thickness dimension therebetween and the layer having an interior portion extending from a
- Peripheral portion is surrounded.
- the inner part of the layer is compressed through its thickness dimension to an upper one
- the thickness dimension of the peripheral portion extending downwardly from the top wall portion to form a side wall portion of the shield which together with the top wall portion defines at least a portion of the chamber.
- WO 1997/041572 describes a heat-shrinkable, electromagnetic interference (EMI) shielding jacket with which an elongated object with a given outer diameter can be jacketed.
- EMI electromagnetic interference
- Sheath consists of a tubular outer element of
- Inner member that is coaxially received within the outer member and extends coextensively therewith, and a generally continuous, thermoplastic intermediate layer that is between the outer and the
- Inner element is arranged and extends coextensively therewith.
- Intermediate layer connects the inner element to the outer element over substantially the entire length thereof in order to consolidate the jacket into an integral structure.
- the outer element in turn is
- WO 2011/019888 describes a sealing arrangement with a
- Life tracking device related to wear and tear, thermal degradation, physical damage, chemical incompatibility and structural
- Electromagnetic shielding surfaces on plastic components usually see the application of the coating as an additional factor
- the layer thicknesses of the coatings obtained by spray application are generally not uniform with respect to the component surface. It is also difficult to produce the conductive layers in the desired small thickness, e.g. B. of a maximum of 1 mm to apply.
- the present invention is based on the object of providing a method for producing substrates (components) which are shielded from electromagnetic radiation and which overcomes the disadvantages described above.
- the method according to the invention and the substrates and components obtained thereafter have the following advantages:
- the method according to the invention enables the production of an EMI-shielded substrate without the component first being formed separately and only subsequently coated.
- EMI coatings with a small thickness and / or small deviation (variance) from the desired layer thickness can be produced.
- a polymer film at least partially enclosing the substrate e.g.
- heat-resistant polymers can bring about improved heat resistance.
- Polymer materials are used, one component giving the substrate the structural strength that is not adversely affected by the other component used for EMI shielding.
- a first object of the invention is a method for producing a substrate shielded against electromagnetic radiation, in which: i) a first polymer material (a) or a precursor thereof is provided which contains at least one conductive filler, and at least one second polymer material (b) or provides a precursor thereof, ii) subjects the polymer materials (a) and (b) provided in step i) or their precursor (s) to a shaping with a material bond of the polymer materials (a) and (b), and the precursors, if present, brings to polymerization.
- a substrate shielded from electromagnetic radiation also denotes a substrate that is capable of shielding electromagnetic radiation, i.e. an electromagnetic one
- an electronic component is coated and / or encased with a substrate according to the invention in order to shield the electromagnetic waves emitted by the electronic component in order not to influence the environment in an inadmissible manner.
- an electronic component is coated and / or encased with a substrate according to the invention in order to prevent electromagnetic waves from the environment from encasing the coated and / or encased
- the substrate according to the invention can be an integral component of the electronic component.
- an electronic component is coated and / or encased with the substrate obtained in step ii) and / or an electronic component is embedded in the substrate obtained in step ii).
- step i) at least one of the components provided in step i), selected from the polymer material (a), the precursor for the
- a first preferred embodiment of the method according to the invention is the flinter spraying of foils and composite materials. Another preferred embodiment of the method according to the invention is that
- Multi-component injection molding also called composite injection molding or
- the invention also provides a substrate which can be obtained by the method described above and below.
- Another object of the invention is a device for shielding electromagnetic radiation, which comprises such a substrate or consists of such a substrate.
- Another object of the invention is the use of a
- Polymer materials (a), (b) and (c) in the context of the invention are materials which contain at least one polymer or consist of at least one polymer. In addition to at least one polymer, the
- Polymer materials (a), (b) and (c) contain at least one further component, e.g. B. fillers, reinforcing materials or various thereof
- the polymer materials (a), (b) and (c) are available in a special version as a composite (composite material).
- the polymer materials (a), (b) and, if present, (c) are used as separate components in the process according to the invention and are connected to one another to produce the substrates according to the invention. It is an essential feature of the method according to the invention that the connection of the at least one conductive filler containing
- Polymer material (a) (or the precursor thereof) with the polymer material (b) (or the precursor thereof) and the shaping of the composite of (a) and (b) takes place in one step.
- Multi-component injection molding for the production of substrates in the form of injection molded parts that can consist of two or more than two plastic materials. It is a feature of the multicomponent injection molding processes that can be used according to the invention that they can have two or more than two injection units, but only one clamping unit is required. Thus, according to the invention, substrates can be produced with only one tool in one operation.
- the polymer materials (a) and (b) or the formed composite of (a) and (b) can be connected to at least one further polymer material (c) or a precursor thereof. Connecting with the
- At least one further polymer material (c) or the precursor thereof can take place in process step ii).
- the shaped composite of (a) and (b) can be connected in at least one separate step iii) to the at least one further polymer material (c) or a precursor thereof.
- the composite of (a), (b) and (c) can be subjected to at least one further shaping. This shaping can take place simultaneously with the joining in step ii) or step iii) or in a separate step.
- a shaped composite of (a), (b) and (c) from step ii) can also be connected in at least one separate step iii) with a further polymer material (c) or a precursor thereof.
- the polymer materials (a), (b) and (c) can all contain the same polymers or partially different polymers or completely different polymers.
- thermoplastics in the context of the invention denotes polymers which can be reversibly deformed above a certain temperature, and this process can theoretically be repeated as often as desired.
- Thermoplastics are made up of few or unbranched polymer chains that are only linked to one another by weak physical and not chemical bonds (i.e. uncrosslinked). This is what distinguishes thermoplastics from
- Duroplasts and (classic, i.e. non-thermoplastic) elastomers which after their production can no longer be thermoformed.
- Elastomers in the context of the invention denotes dimensionally stable, but elastically deformable plastics whose glass transition temperature is below the temperature at which the polymers are usually used. Elastomers can deform elastically under tensile and compressive load, but then find their way back to their original, undeformed shape.
- Thermoplastic elastomers are a special form of elastomers, which have thermoplastic properties in certain temperature ranges.
- thermoplastic elastomers behave at low levels
- step ii) For shaping in step ii) at least one of the in step i)
- thermoplastics thermoplastic elastomers, semi-crystalline thermoplastics, elastomers, thermosets
- state ranges with the thermo-mechanical properties changing little or no change within a state range.
- polymers are generally in a solid, glassy state.
- Amorphous thermoplastics change to a thermoelastic state above TG and their shape can be changed. This change in shape is initially reversible; the polymer material can only be shaped by so-called 'thermoforming' at a higher temperature. Amorphous thermoplastics do not have a precisely defined melting point. Beyond the flow temperature, the material becomes soft and flowable (plasticized) and can then also be molded (such as injection molding) are processed. Thermoplastic elastomers are plastics which, above TG, behave in a comparable way to classic elastomers, ie they are
- Elastomers can be brought into a flowable form in the form of their not yet crosslinked precursors and used for shaping in step ii). Under the influence of heat, the elastomers vulcanize so that, unlike thermoplastics, they cannot be melted again and reshaped.
- thermosets can be brought into a flowable form and used for shaping in step ii).
- the preliminary stage is equipped with a
- a material bond is formed by atomic or molecular forces between the connection partners.
- the material connections of plastics include adhesive connections and welded connections; Injection molding processes also lead to material connections.
- a material bond is usually a non-detachable connection. Positive connections are created by the interlocking of at least two connection partners. This allows the
- substrates can be produced which are advantageously suitable for shielding electromagnetic radiation in the entire frequency range in which such measures are required, in order to avoid undesired impairments by electromagnetic radiation
- the frequency range relevant for EMI shielding is generally in a range from about 2 Flz to 100 GFIz, preferably from 100 Hz to 100 GHz.
- the wave range that is particularly interesting for shielding for automotive applications is in a range from 100 kHz to 100 MHz.
- the frequency range relevant for EMI shielding is generally in a range from about 2 Flz to 100 GFIz, preferably from 100 Hz to 100 GHz.
- the wave range that is particularly interesting for shielding for automotive applications is in a range from 100 kHz to 100 MHz.
- the wave range that is particularly interesting for shielding for automotive applications is in a range from 100 kHz to 100 MHz.
- the compositions according to the invention are well suited for this.
- the substrates produced by the method according to the invention are also particularly suitable for shielding low and medium frequencies. So you can use as a filler z. B. use a material for deflecting magnetic fields, such as a magnetic material. Furthermore, a material for reflecting electromagnetic waves with a high frequency, e.g. B. a high carbon conductive
- Suitable combinations of fillers can be used for broadband application.
- a back-molding method for producing a substrate that is shielded from electromagnetic radiation.
- Multi-component injection molding is used to produce injection-molded parts that consist of two or more different plastics.
- the plastics In the simplest case, the plastics only differ in color in order to achieve a certain design. However, different materials and thus different properties can also be combined in a targeted manner.
- Composite injection molding requires an injection molding machine with two or more injection units, but only one clamping unit. The parts can thus be produced inexpensively with just one tool in one operation.
- the injection units must work in harmony, but always be controllable independently of one another.
- the components can be injected through a single special nozzle or introduced into the mold at different points.
- IMD inmold decoration
- FIM film insert molding
- IML inmold labeling
- IMC inmold coating
- IMP inmold painting
- Foil coating is created.
- inmold decoration IMD
- FIM film insert molding
- IML inmold labeling
- IMC inmold coating
- IMP inmold painting
- the inmold decoration process is a combination of hot stamping and back injection molding. It is used to impress a functionality from a carrier film, a special IMD film, onto a substrate. The functionalized and / or embossed carrier film is placed in the injection molding tool. In the second step, the plastic material is injected. In the last step, the molded body obtained is removed from the tool and the carrier film is separated. A molded plastic body is obtained with an impressed functionality.
- the carrier film in the IMD process comprises a first polymer material (a) which contains at least one filler for shielding electromagnetic radiation.
- the plastic material comprises at least one second polymer material (b).
- the functionalized carrier film becomes part of the finished substrate.
- the carrier material, the embossing foil, is functionalized (coated), pre-formed and punched out.
- the cut film is placed in the injection molding tool and back-injected with a plastic material. The exact sequence of the process steps is flexible. Finally, the carrier film is removed.
- the carrier film in the FIM process comprises the first polymer material (a) which contains at least one filler for shielding electromagnetic radiation.
- the plastic material comprises at least one second polymer material (b).
- a roll-to-roll process (R2R process, or roll-to-roll processing) can also be used to process carrier foils.
- the process of inmold labeling is very similar to the classic back injection molding, only label films are used here. These foils are thinner. This film can be introduced into the injection molding tool either as rolled goods or as a finished cut.
- the carrier film in the IML process comprises the first polymer material (a) which contains at least one filler for shielding electromagnetic radiation.
- the plastic material comprises at least one second polymer material (b).
- Inmold coating is a combination of spraying and injection molding. First, a coating is applied to the injection molding tool using a spray gun. After the material has dried on, the plastic material is back-injected.
- the coating in the IMC method comprises the first polymer material (a) which contains at least one filler for shielding electromagnetic radiation.
- the plastic material comprises at least one second polymer material (b).
- the plastic material is injected in the first step, and the coating is sprayed on in the second step, i. the process steps take place in the reverse order of the process steps of the IMC procedure.
- the coating includes the first
- this contains electromagnetic radiation.
- this includes
- Plastic material at least one second polymer material (b).
- one of the polymer materials (a) or (b) is provided in the form of a composite.
- one of the polymer materials (a) or (b) is provided in the form of a layered composite. This is particularly advantageous when the method according to the invention is used for flinter spraying.
- component b) is provided in the form of a composite.
- a composite or composite material is a material made of two or more connected materials, which has different material properties than its individual components.
- the connection is made by material connection,
- phases can come from one and the same or from different main material groups.
- the main groups of materials include metals, ceramics, glasses, polymers and composite materials.
- composite includes both composite materials and material composites. Composites are at least two-phase (i.e. heterogeneous) but appear macroscopically homogeneous. When viewed with the naked eye, it often appears to be a single material. Material composites are usually already visible to the naked eye as composites of several
- a layered composite (laminate) is a preferred embodiment of a material composite. Laminates consist of at least two superimposed layers. The special case of three layers, two of which are identical outer layers, is also called
- the composite preferably comprises at least one of the polymer materials (a) or (b) and at least one further, different component (K).
- the composite comprises a polymer material (b) and at least one further component (K) different therefrom.
- the component (K) can itself be a composite material.
- the further component (K) is preferably selected from polymers, polymeric materials, metals, metallic materials, ceramic materials, mineral materials, textile materials and combinations thereof.
- the further component (K) is selected from polymer films, polymer moldings, metal foils,
- Suitable polymers are selected from elastomers, thermoplastics and thermosets. With regard to suitable and preferred plastics, reference is made in full to the statements on polymer material (b).
- Suitable metals are selected from aluminum, titanium, magnesium, copper, etc. and alloys thereof.
- Ceramic materials are usually inorganic, non-metallic and polycrystalline. “Non-metallic” is understood here to mean that ceramic materials essentially contain no elemental metals.
- Production of a ceramic material can, for. B. the ceramic-forming inorganic particulate raw materials, a liquid and optionally at least one organic binder are subjected to a thermal treatment (sintering).
- a thermal treatment sining
- materials made from oxide ceramics and non-oxide ceramics are suitable for use in the method according to the invention.
- Suitable oxide ceramics are selected from single-component systems and Multi-substance systems.
- Preferred oxide ceramics are selected from aluminum oxide, magnesium oxide, zirconium oxide, titanium dioxide,
- Aluminum titanates mullite (mixture of aluminum and silicon oxide),
- Suitable non-oxide ceramics are selected from carbides, for example silicon carbide or boron carbide, nitrides, for example silicon nitride,
- Aluminum nitride or boron nitride, borides and silicides are used in the following steps: Aluminum nitride or boron nitride, borides and silicides.
- Suitable metallic materials include at least one metal and at least one different material.
- the materials other than metal are preferably selected from ceramic materials, organic materials and mixtures thereof.
- a preferred embodiment of the metallic materials are metal matrix composites (English metal matrix composites, MMC), which comprise a continuous metal matrix and a discontinuous ceramic and / or organic reinforcement.
- the reinforcement is preferably in the form of fibers or whiskers.
- the metal is e.g. B. selected from aluminum, titanium, magnesium and copper.
- the matrix can be in the form of an elemental metal or in the form of an alloy.
- Ceramic particles e.g. silicon carbide
- short fibers e.g. silicon carbide
- continuous fibers e.g. based on carbon
- foams are suitable for the reinforcement phase.
- metallic materials are the materials obtainable by metal powder injection molding (MIM process).
- the composite comprises at least one reinforced and / or filled plastic material.
- the reinforcing material is preferably selected from fibrous reinforcing materials and fibrous fabrics
- the filler is preferably selected from particulate fillers, such as kaolin, chalk, wollastonite, Talc, calcium carbonate, silicates, aluminum oxide, titanium dioxide, zinc oxide, glass particles and mixtures thereof.
- particulate fillers such as kaolin, chalk, wollastonite, Talc, calcium carbonate, silicates, aluminum oxide, titanium dioxide, zinc oxide, glass particles and mixtures thereof.
- Plastic materials are fiber-plastic composites, such as
- CFRP carbon fiber reinforced plastic
- GFRP glass fiber reinforced plastic
- AFK aramid fiber reinforced plastic
- NFK natural fiber reinforced plastic
- a composite is provided as the polymer material (a) in step i) which comprises the polymer component of the polymer material (a) as a coating on a polymer film and this composite in step ii) by injection molding with the polymer material (b) cohesively connected.
- step i) which comprises the polymer component of the polymer material (a) as a coating on a polymer film and this composite in step ii) by injection molding with the polymer material (b) cohesively connected.
- a composite is provided in step i) as polymer material (b), which the polymer component of the polymer material (b) as
- step i) a composite is provided in step i), which the
- Polymer component of the polymer material (a) comprises as a coating on a polymer film.
- this composite is materially bonded to the at least one polymer material (b) by injection molding.
- the polymer film serves as a carrier material or transfer material for the polymer component of the polymer material (a) or the polymer material located thereon
- Polymer component of the polymer material (a) or (b) are coated.
- the polymer film must in principle be coated with one of the
- Polymer components (a) or (b) be suitable.
- the polymer film must also be able to move after
- the polymer film is exclusive
- the polymer film is part of the substrate. It then acts z. B. as a carrier material, material for
- Suitable polymer films that allow easy removal include e.g.
- Suitable polymer films which remain in the substrate include e.g. B. Polypropylene, plasma-treated foils, foils with fluorinated surfaces, etc.
- the polymer film is detached from the injection-molded part obtained after the injection molding step ii) has ended.
- the polymer film remains connected to the obtained injection molded part and the obtained substrate.
- a composite injection molding process is provided for producing a substrate that is shielded from electromagnetic radiation.
- Plastic component molded on or overmolded. With this method it is possible to combine complex components with different material properties.
- the various execution techniques are known to those skilled in the art, e.g. B. Core-back process, relocating or transfer technology, turntable technology or sliding technology.
- Polymer materials (a) and (b) are both plasticizable and are firmly bonded in step ii) by multi-component injection molding.
- At least one of the following techniques is used for multi-component injection molding: core retraction technique (core-back technique), transfer technique (transfer technique), turning technique, index plate technique,
- a pre-molded part is transferred into a new mold cavity with space for the pre-molded part and the new component after the first injection process.
- index plate technology transfer technology
- Pre-molded part and the new component implemented which can be applied to both sides of the pre-molded part.
- the tool (usually only one half) is rotated or moved into a new position after the first injection process and the pre-molded part is overmolded in the new position with another nozzle.
- a core in the tool is retracted to make room for the newly added component.
- This technique is used in particular in the manufacture of device housings with different colored areas.
- the sandwich process usually results in parts in which the component inside is not visible because it is completely enveloped by the outer material.
- sandwich injection molding the swelling flow of the masses when flowing into the mold cavity (mold cavity) is used. The melts fill the cavity one after the other from the gate. The first flowing in
- Molding compound is continuously placed on the wall, where it is last pushed by the second component flowing inside.
- Two injection units work together on one injection head, which, depending on the control by valves or multiple shut-off nozzles, allows the masses from all injection units to flow in as required.
- the source flow ensures that this complete enveloping each other of the components down to the smallest
- the sprue can be sealed by the first component.
- an additional function is integrated into the substrate by one or more of the following measures:
- thermoelectric Use of at least one component as a heating element, Use of at least one component, the thermoelectric
- NSH Noise, Vibration, Harshness
- the polymer materials a), b) and c) contain at least one polymer or consist of at least one polymer which is preferably selected from amorphous thermoplastics, thermoplastic elastomers, partially crystalline thermoplastics, elastomers, thermosets and mixtures thereof.
- the polymer materials a), b) and c) contain at least one polymer or consist of at least one polymer, which is particularly preferably selected is among polyurethanes, silicones, fluorosilicones, polycarbonates, ethylene vinyl acetates (EVA), acrylonitrile / butadiene / acrylates (ABA), acrylonitrile butadiene rubbers (ABN), acrylonitrile butadiene styrenes (ABS), acrylonitrile methyl methacrylates (AMMA) , Acrylonitrile-styrene-acrylates (ASA),
- EVA ethylene vinyl acetates
- ABA acrylonitrile / butadiene / acrylates
- ABS acrylonitrile butadiene rubbers
- ABS acrylonitrile butadiene styrenes
- AMMA Acrylonitrile-styrene-acrylates
- CA Cellulose acetates
- CAB cellulose acetate butyrates
- PSU polysulfones
- PVC polyvinyl chlorides
- PPE polyphenylene oxide (PPO)
- PS polystyrenes
- PA polyamides
- PE polyolefins
- B. polyethylene (PE) or polypropylene (PP)
- PK polyketones
- PEK polyether ketones
- Polyether ketones Polyimides (PI), polyetherimides, polyethylene terephthalates (PET), polybutylene terephthalates (PBT), fluoropolymers, polyesters,
- Polyacetals e.g. B. Polyoxymethylene (POM), liquid crystal polymers,
- Polyether sulfones PES
- epoxy resins EP
- phenolic resins chlorosulfonates
- polybutadienes polybutylene
- polyneoprenes polynitriles
- polyisoprenes natural rubbers
- copolymer rubbers such as styrene-isoprene-styrenes (SIS), styrene-butadiene-styrenes (SBSylenes), EPR), ethylene-propylene-diene rubbers (EPDM), styrene-butadiene rubbers (SBR) and their copolymers and mixtures (blends) thereof.
- SIS styrene-isoprene-styrenes
- SBSylenes styrene-butadiene-styrenes
- EPR ethylene-propylene-diene rubbers
- SBR styrene-butadiene rubbers
- Preferred aliphatic and aromatic polyether ketones are aliphatic polyether ether ketones or aromatic polyether ether ketones (PEEK).
- a special version are aromatic polyetheretherketones.
- polyurethanes also includes polyureas and urea group-containing polyurethanes.
- thermosetting plastics are flarnea-formaldehyde resins, melamine resins, melamine-formaldehyde resins, melamine-flarnea-formaldehyde resins, melamine-flarnea-phenol-formaldehyde resins, phenol-formaldehyde resins, resorcinol Formaldehyde resins, crosslinkable isocyanate-polyol resins, epoxy resins, acrylates, methacrylates, polystyrenes and polyester resins.
- thermoplastic elastomers are thermoplastic
- Polyamide elastomers (TPA), thermoplastic copolyester elastomers (TPC), olefin-based thermoplastic elastomers (TPO) (especially PP / EPDM), thermoplastic styrene block copolymers (TPS) (especially styrene-butadiene-styrene (SBS), SEBS, SEPS, SEEPS and MBS ), thermoplastic elastomers based on polyurethane (TPU), thermoplastic vulcanizates (TPV) and cross-linked thermoplastic elastomers based on olefin (specially cross-linked PP / EPDM and cross-linked ethylene-propylene copolymers (EPM)) and polyether block amides (PEBA).
- TPA Polyamide elastomers
- TPC thermoplastic copolyester elastomers
- TPO olefin-based thermoplastic elastomers
- TPS thermoplastic styrene
- Thermoplastic styrene block copolymers are selected in particular from SEBS, SEPS, SBS, SEEPS, SiBS, SIS, SIBS or mixtures thereof, in particular SBS, SEBS, SEPS, SEEPS, MBS and mixtures thereof.
- Thermoplastic elastomers based on olefins are selected in particular from PP / EPDM and ethylene-propylene copolymers (EPM).
- Thermoplastic elastomers based on polyurethane (TPU) are derived in particular from at least one polymeric polyol, specifically selected from at least one polyester diol, polyether diol, polycarbonate diol and
- a special version is a TPU that contains at least one mixture of polymeric polyols incorporated, the at least one
- Polyester diol at least one polyether diol and at least one
- Thermoplastic vulcanizates are derived in particular from a styrene block copolymer with a reactive or crosslinkable hard block, the comprises aromatic vinyl repeat units, and a crosslinkable soft block comprising olefin or diene repeat units.
- Suitable elastomers are acrylonitrile butadiene acrylates (ABA), acrylonitrile butadiene rubbers (ABN), acrylonitrile / chlorinated polyethylene / styrene (A / PE-C / S), acrylonitrile / methyl methacrylate (A / MMA), butadiene rubber (BR ), Butyl rubber (IIR), chloroprene rubber (CR), ethylene-ethyl acrylate copolymers (E / EA), ethylene-propylene-diene rubber (EPDM),
- ABA acrylonitrile butadiene acrylates
- ABS acrylonitrile butadiene rubbers
- a / PE-C / S acrylonitrile / chlorinated polyethylene / styrene
- a / MMA acrylonitrile / methyl methacrylate
- BR butadiene rubber
- IIR chloroprene rubber
- Ethylene vinyl acetate (EVA) fluororubber FPM or FKM
- FPM or FKM fluorororubber
- IR isoprene rubber
- NR natural rubber
- PIB polyisobutylene
- elastomeric polyurethanes polyvinyl butyral
- PVB polyvinyl butyral
- SBR styrene-butadiene rubber
- VVC / E vinyl chloride / Ethylene
- VC / E vinyl chloride-ethylene-methacrylate
- the polymer materials a), b) and c) contain at least one polymer or consist of at least one polymer, which is selected in particular from thermoplastic elastomers
- TPO Olefin-based
- TPS thermoplastic styrene block copolymers
- SBS styrene-butadiene-styrene
- SEBS styrene-butadiene-styrene
- SEEPS styrene-butadiene-styrene
- MBS thermoplastic elastomers based on polyurethane
- TPU thermoplastic vulcanizates
- Shielding attenuation is made up of components for absorption SEA, reflection SER and multi-reflection SE M.
- Polyurethanes in particular and polyurethanes containing urea groups in particular are highly compatible with a large number of different fillers suitable for EMI shielding. Due to the high flexibility of the substrates according to the invention with regard to the type and amount of the conductive fillers contained and the possibility of using further polymer components, especially conductive polymers, the respectively desired proportion of absorption and reflection can be achieved
- the substrates according to the invention are distinguished by an overall good application profile. This includes that they can withstand mechanical, thermal or chemical loads and, for example, B. through good scratch resistance, flaking,
- the polymer material (a) preferably contains 15 to 99.5% by weight, particularly preferably 20 to 99% by weight, of at least one polymer component, based on the sum of the polymer component and the at least one conductive filler.
- the term polymer component also includes polymerized precursors of the polymer material (a).
- the polymer material preferably comprises a) or consists of the polymer material a) of at least one polymer selected from thermoplastics,
- thermoplastic elastomers thermoplastic elastomers, elastomers and mixtures thereof.
- thermoplastics thermoplastic elastomers and mixtures thereof are preferred.
- the polymer component of the polymer material (a) is preferably selected from polyolefin flomo or copolymers, liquid silicone rubbers,
- the polymer component of the polymer material (a) contains at least one polyolefin homo- or copolymer or the polymer component of the polymer material (a) consists of at least one polyolefin homo- or copolymer.
- the polyolefins preferably contain one or more Ci-C4-olefins in copolymerized form, preferably selected from ethylene, propylene, 1-butene or isobutene.
- Suitable polyolefin homo- or copolymers are selected from polyethylene (PE), polypropylene (PP), polymethylpentene (PMP), polyisobutene (PIB), polybutene (PB),
- Ethylene / propylene copolymers ethylene-propylene-diene copolymers (EPDM) and mixtures thereof.
- the polymer component of the polymer material (a) contains a liquid silicone rubber (LSR, iquid silicone rubber) or the polymer component of the polymer material (a) consists of a liquid silicone rubber.
- LSR liquid silicone rubber
- EP0875536A2 describes a self-adhesive addition-crosslinking silicone rubber mixture which a) an SiH crosslinker containing at least 20 SiH groups and b) an epoxy-functional one
- EP1854847A1 describes a curable two-component system which contains at least one diorganopolysiloxane and at least one SiH-containing crosslinker. Suitable
- Liquid silicone rubbers are commercially available, e.g. B. the
- the polymer component of the polymer material (a) contains a polyurethane or the polymer component of the polymer material (a) consists of a polyurethane.
- Polyurethanes composed of polyisocyanates and thus complementary compounds with at least two groups reactive toward NCO groups.
- the groups reactive with the NCO groups are preferably OH, NH2, NHR or SH groups.
- the reaction of NCO groups with OH groups leads to the formation of urethane groups.
- the reaction of NCO groups with amino groups leads to the formation of urea groups. in the
- polyurethanes also includes polyureas and compounds containing urethane groups and
- urea groups contain. The latter are also referred to below as "urea group-containing polyurethanes". Compounds that contain only one reactive group per molecule lead to a breakdown of the
- Compounds that contain two reactive groups per molecule lead to the formation of linear polyurethanes.
- Compounds with more than two reactive groups per molecule lead to the formation of branched polyurethanes.
- Polyurethanes within the meaning of the invention can also be linked, for example, by urea, allophanate, biuret, carbodiimide, amide, uretonimine, uretdione, isocyanurate or oxazolidone structures.
- the polymer component of the polymer material (a) contains at least one urea group-containing polyurethane or the polymer component of the polymer material (a) consists of at least one urea group-containing polyurethane.
- the polymer material (a) preferably contains 15 to 99.5% by weight, particularly preferably 20 to 99% by weight, of at least one polyurethane containing urea groups, based on the sum of urea group containing
- Polyurethane and the at least one conductive filler are Polyurethane and the at least one conductive filler.
- the polymer component consists of the
- Polymer material (a) made exclusively from at least one polyurethane, in particular from at least one urea group-containing polyurethane.
- polyurethanes containing urea groups also apply analogously to polyurethanes which do not contain any urea groups, that is to say for the production of which no amine component is used which has at least two amino groups reactive toward NCO groups.
- Polyurethanes containing urea groups contain at least one
- Polymerized amine component which has at least two amine groups which are reactive toward NCO groups.
- the proportion of the amine component is preferably 0.01 to 32 mol%, particularly preferably 0.1 to 10 mol%, based on the amount used to prepare the
- the polyurethane (containing urea groups) is preferably low-branched or linear.
- the one containing urea groups is particularly preferred
- Polyurethane has a linear structure. I.e. the urea group-containing polyurethane is built up from diisocyanates and thus complementary divalent compounds.
- Linear (urea group-containing) polyurethanes in the context of the invention are urea group-containing polyurethanes which have a degree of branching of 0%.
- Low-branched (urea group-containing) polyurethanes preferably have a degree of branching from 0.01 to 20%, in particular from 0.01 to 15%.
- the degree of branching of the polyurethane (containing urea groups) is preferably 0 to 20%.
- the degree of branching denotes the proportion of Nodes in the polymer chain, ie the proportion of atoms that
- a crosslinking is accordingly understood to mean that a branching polymer chain ends in a second branching polymer chain.
- Groups reactive toward NCO groups preferably have at least one active hydrogen atom.
- Suitable complementary compounds are low molecular weight di- and
- Polyols polymeric polyols, low molecular weight di- and polyamines with primary and / or secondary amino groups, polymeric polyamines, amine-terminated polyoxyalkylene polyols, compounds with at least one hydroxyl group and at least one primary or secondary amino group in the molecule, in particular amino alcohols.
- diols low molecular weight diols
- polyols low molecular weight polyols
- Suitable diols are, for example
- Ethylene glycol propane-1, 2-diol, propane-1, 3-diol, butane-1, 2-diol, butane-1, 3-diol, butane-1, 4-diol, butane-2,3-diol, Pentane-1, 2-diol, pentane-1, 3-diol, pentane-1, 4-diol, pentane-1, 5-diol, pentane-2,3-diol, pentane-2,4-diol, hexane 1, 2-diol, hexane-1, 3-diol, hexane-1, 4-diol, hexane-1, 5-diol, hexane-1, 6-diol, hexane-2,5-diol, heptane-1, 2-diol 1,7-heptanediol, 1,8-octaned
- Suitable polyols are compounds with at least three OH groups, e.g. B. glycerol, trimethylolmethane, trimethylolethane, trimethylolpropane, 1, 2,4-butanetriol, tris (hydroxy-methyl) amine, tris (hydroxyethyl) amine,
- Di pentaerythritol
- di di, tri- or oligoglycerols
- sugars such as.
- B glucose, tri- or higher-functional polyetheroie based on tri- or higher-functional alcohols and ethylene oxide, propylene oxide or butylene oxide, or polyesteroie.
- glycerol trimethylolethane, trimethylolpropane, 1,2,4-butanetriol, pentaerythritol, and their polyetherols based on ethylene oxide or
- Propylene oxide is particularly preferred. Since these compounds lead to branches, they are preferably used in an amount of at most 5% by weight, in particular at most 1% by weight, based on the total weight of the compounds which are complementary to the isocyanates. In particular, no polyols are used.
- Suitable polymeric diols and polymeric polyols preferably have a molecular weight of 500 to 5000 g / mol.
- the polymeric diols are preferably selected from polyether diols, polyester diols, polyether ester diols and polycarbonate diols.
- the polymeric diols and polyols containing ester groups can be used instead of or in addition to carboxylic acid ester groups
- Preferred polyether diols are polyethylene glycols H0 (CH2CH20) n-H,
- Polytetramethylene glycols polytetrahydrofurans
- poly-1, 3-propanediols or mixtures of two or more representatives of the above compounds.
- diols are substituted by SH groups.
- Preferred polyester diols are those which are obtained by reacting dihydric alcohols with dihydric carboxylic acids. Instead of the free polycarboxylic acids, it is also possible to use the corresponding polycarboxylic acid anhydrides or corresponding polycarboxylic acid esters of lower alcohols or mixtures thereof for preparing the polyester diols.
- Polycarboxylic acids can be aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic and optionally, e.g. B. by
- Halogen atoms substituted and / or unsaturated. Examples include: suberic acid, azelaic acid, phthalic acid, isophthalic acid,
- Phthalic anhydride tetrahydrophthalic anhydride
- Dicarboxylic acids of the general formula HOOC- (CH2) y -COOH are preferred, where y is a number from 1 to 20, preferably an even number from 2 to 20, e.g. B.
- polyhydric alcohols such as polyhydric alcohols such.
- B ethylene glycol, propane-1, 2- diol, propane-1, 3-diol, butane-1, 3-diol, butene-1, 4-diol, butyne-1, 4-diol, pentane-1, 5- diol, neopentyl glycol, bis (hydroxymethyl) cyclohexanes such as 1,4-bis (hydroxymethyl) cyclohexane, 2-methylpropane-1,3-diol, methylpentanediols, also diethylene glycol, triethylene glycol, tetraethylene glycol, polyethylene glycol,
- reactive hydrogen atoms such as alcohols or amines, e.g. B. water, ethylene glycol, propane-1, 2-diol, propane-1, 3-diol, 2,2-bis (4-hydroxyphenyl) propane or aniline are available.
- a particularly preferred polyether diol is polytetrahydrofuran.
- Polytetrahydrofurans can by cationic polymerization of
- Polycarbonate diols are preferred, as they are, for. B. by reacting phosgene with an excess of the as structural components for the
- Polyester polyols called low molecular weight alcohols can be obtained.
- lactone-based polyester diols can also be used, these being flomo or copolymers of lactones, preferably addition products of lactones with suitable difunctional starter molecules containing terminal flydroxyl groups.
- Preferred lactones are those which are derived from compounds of the general formula FIO- (CFl2) z-COOFI, where z is a number from 1 to 20 and an F1 atom of a methylene unit is also a C 1 to C 4 alkyl radical can be substituted. Examples are e-caprolactone, ⁇ -propiolactone, g-butyrolactone and / or methyl- ⁇ -caprolactone and mixtures thereof.
- Suitable starter components are, for. B.
- polyester polyols the low molecular weight dihydric alcohols mentioned above as a structural component for the polyester polyols.
- the Corresponding polymers of e-caprolactone are particularly preferred.
- Lower polyester diols or polyether diols can also be used as starters
- lactone polymers be used.
- polymers of lactones it is also possible to use the corresponding, chemically equivalent
- Suitable low molecular weight di- and polyamines with primary and / or secondary amino groups have a molecular weight of 32 to less than 500 g / mol. Preference is given to diamines which contain two amino groups selected from the group consisting of the primary and secondary amino groups.
- Suitable aliphatic and cycloaliphatic diamines are, for example, ethylenediamine, N-alkyl-ethylenediamine, propylenediamine, 2,2-dimethyl-1,3-propylenediamine, N-alkylpropylenediamine, butylenediamine, N-alkylbutylenediamine, pentanediamine, hexamethylenediamine, N-alkylhexamethylenediamine,
- Low molecular weight aromatic di- and polyamines can also be used to produce the compositions according to the invention.
- Aromatic diamines are preferably selected from bis (4-aminophenyl) methane, 3-methylbenzidine, 2,2-bis (4-aminophenyl) propane, 1,1-bis (4- aminophenyl) -cyclohexane, 1,2-diaminobenzene, 1,4-diaminobenzene, 1,4-diaminonaphthalene, 1,5-diaminonaphthalene, 1,3-diaminotoluene, m-xylylenediamine, N, N'-dimethyl-4,4 ' -biphenyl-diamine, bis- (4-methyl-aminophenyl) -methane, 2,2-bis- (4-methylaminophenyl) -propane or mixtures thereof.
- the low molecular weight diamines and polyamines used in the compositions have a proportion of aromatic diamines and polyamines in all diamines and polyamines of at most 50 mol%, particularly preferably at most 30 mol%, especially at most 10 mol%.
- the proportion of aromatic diamines and polyamines in all diamines and polyamines of at most 50 mol%, particularly preferably at most 30 mol%, especially at most 10 mol%.
- the low molecular weight diamines and polyamines used do not contain any aromatic diamines and polyamines.
- aromatic di- and polyamines are used. Then the proportion of aromatic diamines and polyamines in all diamines and polyamines is at most 50 mol%, particularly preferably at most 30 mol%, especially at most 10 mol%.
- Suitable polymeric polyamines preferably have a molecular weight of 500 to 5000 g / mol.
- These include polyethyleneimines and amine-terminated polyoxyalkylene polyols, such as a, w-diaminopolyethers, which can be prepared by amination of polyalkylene oxides with ammonia.
- Special amine-terminated polyoxyalkylene polyols are so-called Jeffamines or amine-terminated polytetramethylene glycols.
- Suitable compounds with at least one hydroxyl group and at least one primary or secondary amino group in the molecule are dialkanolamines, such as diethanolamine, dipropanolamine, diisopropanolamine, 2-amino-1,3-propanediol, 3-amino-1,2-propanediol, 2-amino -1, 3-propanediol, dibutanolamine, Diisobutanolamine, bis (2-hydroxy-1-butyl) amine, bis (2-hydroxy-1-propyl) amine and dicyclohexanolamine.
- dialkanolamines such as diethanolamine, dipropanolamine, diisopropanolamine, 2-amino-1,3-propanediol, 3-amino-1,2-propanediol, 2-amino -1, 3-propanediol, dibutanolamine, Diisobutanolamine, bis (2-hydroxy-1-buty
- the urea group-containing polyurethane contains at least one amine-group-containing amine component in copolymerized form which has at least two amine groups which are reactive towards NCO groups. During the polyaddition, this leads to the formation of urea groups.
- the urea group-containing polyurethane contains at least one diamine component in copolymerized form.
- the polymerized diamine component is preferably selected from ethylenediamine, 1,3-propylenediamine, 1,4-tetramethylenediamine, 1,5-pentamethylenediamine, 1,6-hexamethylenediamine, 2-methylpentamethylenediamine,
- Polyfunctional isocyanates are compounds with two or more (e.g. 3, 4, 5, etc.) isocyanate groups in the molecule.
- the polyisocyanate is generally selected from di- and polyfunctional isocyanates, the allophanates, isocyanurates, uretdiones or carbodiimides of difunctional isocyanates and mixtures thereof.
- the polyisocyanate preferably contains at least one difunctional isocyanate. In particular, only difunctional isocyanates (diisocyanates) are used.
- Suitable polyisocyanates are generally all aliphatic and
- aromatic isocyanates provided they are at least two reactive
- aliphatic diisocyanates also includes cycloaliphatic (alicyclic)
- the polyurethane (containing urea groups) contains aliphatic polyisocyanates, it being possible for the aliphatic polyisocyanate to be replaced by at least one aromatic polyisocyanate up to 80% by weight, preferably up to 60% by weight, based on the total weight of the polyisocyanates .
- the urea group-containing polyurethane contains exclusively aliphatic
- the polyisocyanate component preferably has an average content of 2 to 4 NCO groups.
- Diisocyanates are preferred;
- Suitable polyisocyanates are selected from compounds with 2 to 5 isocyanate groups, isocyanate prepolymers with an average number of 2 to 5 isocyanate groups and mixtures thereof. These include, for example aliphatic, cycloaliphatic and aromatic di, tri- and higher
- the polyurethane (containing urea groups) preferably contains at least one aliphatic polyisocyanate incorporated.
- Suitable aliphatic polyisocyanates are selected from ethylene diisocyanate, propylene diisocyanate,
- HDI Hexamethylene diisocyanate
- 1, 12-diisocyanatododecane 1, 12-diisocyanatododecane
- the aromatic polyisocyanate is preferably selected from 1,3-phenylene diisocyanate, 1,4-phenylene diisocyanate, 2,4- and 2,6-tolylene diisocyanate and their isomer mixtures, 1,5-naphthylene diisocyanate, 2,4'- and 4,4'- Diphenylmethane diisocyanate, hydrogenated 4,4'-diphenylmethane diisocyanate (H12MDI), xylylene diisocyanate (XDI),
- TXDI Tetramethylxylene diisocyanate
- 4,4'-dibenzyl diisocyanate 4,4'-diphenyldimethylmethane diisocyanate, di- and
- Tetraalkyldiphenylmethane diisocyanates ortho-tolydine diisocyanate (TODI) and mixtures thereof.
- the polyurethane (containing urea groups) contains at least one polyisocyanate with a uretdione, isocyanurate, urethane, allophanate, biuret, iminooxadiazinedione and / or oxadiazinetrione structure incorporated.
- the (urea group-containing) polyurethane contains at least one aliphatic polyisocyanate with uretdione,
- Oxadiazintrione structure incorporated.
- polyisocyanates or polyisocyanate mixtures with exclusively aliphatically and / or cycloaliphatically bonded ones
- the polyurethane (containing urea groups) particularly preferably contains at least one aliphatic diisocyanate incorporated, which is selected from hexamethylene diisocyanate, isophorone diisocyanate and mixtures thereof.
- Polyurethane composed of aliphatic polyisocyanates and thus complementary aliphatic compounds with at least two groups reactive toward NCO groups, the aliphatic polyisocyanate up to 50 wt .-%, based on the total weight of the polyisocyanates, through
- At least one aromatic polyisocyanate can be replaced.
- at least one aromatic polyisocyanate can be replaced.
- Polyurethane (containing urea groups) composed of aliphatic polyisocyanates and thus complementary aliphatic compounds with at least two groups reactive toward NCO groups, the aliphatic polyisocyanate up to 30% by weight, based on the total weight of the
- Polyisocyanates can be replaced by at least one aromatic polyisocyanate.
- Polyurethane composed of aliphatic polyisocyanates and thus complementary aliphatic compounds with at least two groups reactive toward NCO groups.
- Polyurethane a diamine-modified polycarbonate ester-polyether-polyurethane is used.
- the polymer component of the polymer material (a) contains a thermoplastic elastomer (TPE) or the polymer component of the polymer material (a) consists of a TPE.
- TPE thermoplastic elastomer
- Suitable and preferred TPEs are those mentioned above, to which reference is made here.
- TPEs are selected from thermoplastic polyamide elastomers (TPA), thermoplastic copolyester elastomers (TPC), thermoplastic elastomers based on olefin (TPO), thermoplastic styrene block copolymers (TPS), thermoplastic elastomers based on urethane (TPU) and thermoplastic vulcanizates or crosslinked thermoplastic elastomers based on olefin ( TPV).
- TPA thermoplastic polyamide elastomers
- TPC thermoplastic copolyester elastomers
- TPO thermoplastic elastomers based on olefin
- TPS thermoplastic styrene block copolymers
- TPU thermoplastic elastomers based on urethane
- TPU thermoplastic vulcanizates or crosslinked thermoplastic elastomers based on olefin
- TPV thermoplastic vulcanizates or crosslinked thermoplastic elastomers
- TPC is commercially available e.g. B. as Keyflex from LG Chem.
- TPO is commercially available e.g. B. as Elastron TPO, Saxomer TPE-0 from PCW.
- TPS is commercially available e.g. B. as Elastron G and Elastron D, Kraton from Kraton Polymers, as Septon from Kuraray, as Styroflex from BASF, as Thermolast from Kraiburg TPE, as ALLRUNA from ALLOD Material GmbH & Co.KG or as Saxomer TPE- S from PCW.
- TPU is commercially available e.g. B. as Elastollan from BASF or as Desmopan, Texin, Utechllan from Covestro.
- TPV is commercially available e.g. B. as Elastron V, Sariink from DSM.
- the thermoplastic elastomer is preferably selected from diene-type rubbers such as polybutadiene, poly (styrene-butadiene) and poly (acrylonitrile-butadiene), saturated rubber obtained by hydrogenating these types of rubber of the diene type, isoprene rubber, chloroprene rubber, acrylic rubber Types such as a butyl polyacrylate, an ethylene / propylene, ethylene / propylene-diene, and an ethylene / octene copolymer resin.
- diene-type rubbers such as polybutadiene, poly (styrene-butadiene) and poly (acrylonitrile-butadiene), saturated rubber obtained by hydrogenating these types of rubber of the diene type, isoprene rubber, chloroprene rubber, acrylic rubber Types such as a butyl polyacrylate, an ethylene / propylene, ethylene / propylene-diene, and an ethylene / o
- the polymer component comprises
- the polymer component of the polymer material b) is preferably selected from polyesters, polyketones (PK), polyether ketones (PEK),
- PEEK Polyetheretherketones
- PA polyamides
- PAI polyamideimides
- PPS polyphenylene sulfides
- ABS copolymers and
- polyesters are polyethylene terephthalates (PET), polybutylene terephthalates (PBT) and polycarbonates (PC).
- PET polyethylene terephthalates
- PBT polybutylene terephthalates
- PC polycarbonates
- High temperature polyamides These are partially crystalline or amorphous, thermoplastic, partially aromatic polyamides. These preferably contain at least one aromatic dicarboxylic acid polymerized,
- terephthalic acid in particular selected from terephthalic acid, isophthalic acid and
- Preferred HTPA are selected from PA 6.T, PA 10.T, PA 12.T, PA 6.I, PA 10.1, PA 12.1, PA 6.T / 6.1, PA 6.T / 6, PA 6.T / 10T, PA 10.T / 6.T, PA 6.T / 12.T, PA12.T / 6.T and mixtures thereof.
- polyphthalamide Another special embodiment of the polyamides is polyphthalamide (PPA).
- the polyketones are selected from polyether ketones, polyether ether ketones, polyaryl ether ketone and mixtures thereof.
- polyarylsulfones are selected from polysulfones (PSU), polyethersulfones (PES),
- Polymer component of the polymer material (b) is a polyamide-ABS blend or consists of it.
- the polymer component of the polymer material (c) is selected from elastomers, thermoplastic elastomers and
- the polymer material (a) contains at least one filler for shielding electromagnetic radiation.
- composition according to the invention comprises as component a) at least one conductive filler.
- Materials or fibers are present. These include powders, nanoparticulate materials, nanotubes, fibers, etc.
- the fillers can be coated, uncoated or applied to a carrier material.
- the geometry of the particulate materials or fibers is not critical.
- the cross-section can be any shape, e.g. B. round, oval, triangular or rectangular.
- Aspect ratio is in particular in the range from 1 to 10,000
- Aspect ratio is the quotient of the length and thickness of the particulate
- the at least one conductive filler is preferably selected from
- Preferred metal-coated supports are metal-coated
- Carbon fibers specially nickel-plated carbon fibers and silver-plated carbon fibers.
- Preferred metal-coated supports are also silver-coated
- the conductive filler is preferably not made of a homogeneous metal
- the conductive filler is preferably not layers of metals obtained by metal vapor deposition or metal foils.
- Suitable elemental metals are selected from cobalt, aluminum, nickel, silver, copper, strontium, iron and mixtures thereof.
- Suitable alloys are selected from strontium ferrite, silver-copper alloy, silver-aluminum alloy, iron-nickel alloy, m-metals, amorphous metals (metallic glasses) and mixtures thereof.
- Suitable metal fibers are man-made fibers made of metal, metal alloys, plastic-coated metal, metal-coated
- Plastic or a core completely encased in metal.
- Metal fibers are preferably comprised or consist of at least one metal selected from iron, copper, aluminum and alloys thereof.
- the metal fibers comprise or consist of a steel, especially stainless steel.
- the conductive filler comprises at least one ferromagnetic material, preferably selected from iron, cobalt, nickel, oxides and mixed oxides thereof, alloys and mixtures thereof. These fillers are especially suitable for deflecting electromagnetic waves with a low frequency.
- the conductive filler comprises at least one carbon-rich, conductive material, preferably selected from carbon nanotubes, carbon fibers, graphite, graphene, conductive carbon black and mixtures thereof. These fillers are especially suitable for reflecting and absorbing electromagnetic waves with a high frequency.
- the at least one conductive filler is selected from conductive carbon black, metal-containing material and mixtures thereof.
- the conductive filler comprises at least one conductive carbon black and at least one metal-containing material.
- the quantitative ratio of carbon black to the metal-containing material is in the range from 5% by weight: 95% by weight to 95% by weight: 5% by weight.
- the first polymer material a) can contain carbon black as the sole conductive filler. In this case, the amount of carbon black used is higher than in
- compositions containing carbon black for coloring and / or UV protection are Compositions containing carbon black for coloring and / or UV protection.
- the carbon black content based on the total weight of the polymer material a), is 5 to 95% by weight, particularly preferably 10 to 90% by weight, in particular 20 to 85% by weight .-%, based on the total weight of the polymer material a).
- the first polymer material a) contains a mixture of carbon black and at least one component different from carbon black as a conductive filler.
- the component different from carbon black is selected from metal-coated substrates, elemental metals,
- the first polymer material a) contains, as a conductive filler, a mixture of at least one conductive carbon black and at least one metal-containing carbon black
- the filler is usually in a sufficient proportion in the
- Contain polymer matrix in order to achieve the desired electrical conductivity for the intended application.
- Usual amounts of the conductive filler are z. B. in a range from 0.1 to 95 wt .-%, based on the total weight of components a) and b).
- the proportion of filler a) is preferably 0.5 to 95% by weight, particularly preferably 1 to 90% by weight, based on the total weight of components a) and b).
- the polymer material (a) additionally contains at least one conductive polymer from the
- urea group-containing polyurethane is different.
- Suitable conductive polymers generally have a conductivity of at least 1 ⁇ 10 3 S rrr 1 at 25 ° C., preferably at least 2 ⁇ 10 3 S rrr 1 at 25 ° C.
- Suitable conductive polymers are selected from polyanilines,
- Polypyrroles polythiophenes, polyethylene dioxythiophenes (PEDOT), poly (p-phenylene-vinylenes), polyacetylenes, polydiacetylenes, polyphenylenesulfides (PSP), polyperinaphthalenes (PPN), polyphthalocyanines (PPhc), sulfonated Polystyrene polymers, carbon fiber-filled polymers and blends,
- the proportion by weight of the at least conductive polymer is preferably 0 to 10% by weight, for example 0.1 to 5% by weight, based on the total weight of component b).
- the polymer material (a) additionally contains at least one non-conductive polymer different from the urea group-containing polyurethane.
- Suitable non-conductive polymers which are different from the urea group-containing polyurethane, are preferably selected from polyurethanes, silicones, fluorosilicones, polycarbonates, ethylene-vinyl acetates (EVA), acrylonitrile-butadiene-styrenes (ABS), polysulfones, poly (meth) acrylates,
- Polyvinyl chlorides PVC
- polyphenylene ethers polystyrenes
- polyamides polyamides
- polyolefins e.g. B. polyethylene or polypropylene, polyether ketones
- Polyesters polyacetals, e.g. B. Polyoxymethylene (POM),
- Liquid crystal polymers polyphenylene oxides, polysulphones, polyethersulphones, polystyrenes, epoxides, phenols, chlorosulphonates, polybutadienes, acrylonitrile butadiene rubbers (ABN), butylene, neoprene, nitriles, polyisoprenes, natural rubbers, styrene-isoprene, and styrene-isoprene (styrene-IS) Butadiene-styrenes (SBS), ethylene-propylenes (EPR), ethylene-propylene-diene monomers (EPDM), nitrile-butadienes (NBR), styrene-butadienes (SBR) and their copolymers and mixtures thereof.
- ABS acrylonitrile butadiene rubbers
- butylene butylene, neoprene, nitriles, polyiso
- the proportion by weight of the at least one non-conductive polymer different from the urea group-containing polyurethane is preferably 0 to 20% by weight, preferably 0 to 15% by weight, based on the total weight of component a). If such a non-conductive matrix polymer is present, then it is in an amount of at least 0.1, preferably at least 0.5% by weight, based on the total weight of component a).
- the conductive polymer and the non-conductive polymer can with
- Filler particles are mixed into a mixture of the components during the polymerization of the matrix polymer (sol-gel process). Homogeneous and heterogeneous blends are possible. There are no macrophases in a homogeneous blend, whereas there are macrophases in a heterogeneous blend.
- the first polymer material (a) contains a1) 0.5 to 95% by weight of at least one conductive filler, a2) 15 to 99.5% by weight of at least one polymer component, a3) 0 to 20% by weight % at least one of a2) not different
- conductive polymer a4) 0 to 10% by weight of at least one conductive polymer, a5) optionally at least one additive, each additive being present in an amount of up to 3% by weight, optionally at least one solvent.
- Suitable additives a5) are selected from antioxidants, heat stabilizers, flame retardants, light stabilizers (UV stabilizers, UV absorbers or UV blockers), catalysts for the
- composition can contain as component a6) at least one filler and reinforcing material different from components a) to c).
- the fillers and reinforcing materials mentioned below are also suitable for providing composites for back injection molding, as described above.
- Particulate fillers can have a wide range of particle sizes, ranging from powdery to coarse-grained particles.
- Organic or inorganic fillers and reinforcing materials can be used as fillers.
- inorganic fillers such as carbon fibers, kaolin, chalk, wollastonite, talc, calcium carbonate, silicates, titanium dioxide, zinc oxide, glass particles, e.g. B. glass spheres, nanoscale layered silicates, nanoscale aluminum oxide (AI2O3), nanoscale titanium dioxide (T1O2), layered silicates and nanoscale silicon dioxide (S1O2) can be used.
- the fillers can also be surface-treated.
- Suitable sheet silicates are kaolins, serpentines, talc, mica,
- the sheet silicates can be surface-treated or untreated.
- one or more fibrous materials can be used. These are preferably selected from known inorganic ones
- Reinforcement fibers such as boron fibers, glass fibers, silica fibers,
- Ceramic fibers and basalt fibers such as
- Aramid fibers polyester fibers, nylon fibers and polyethylene fibers and
- Natural fibers such as wood fibers, flax fibers, hemp fibers and sisal fibers.
- Component a6) if present, is preferably used in an amount of from 1 to 80% by weight, based on the total amount of components a1) to a6).
- composition according to the invention can be in the form of a foam.
- a foam in the sense of the invention is a porous, at least partially open-cell structure with cells communicating with one another.
- foaming can take place through the carbon dioxide formed during the reaction of the isocyanate groups with water; the
- propellants from the class of hydrocarbons such as C3-C6 alkanes, e.g. B. n-butane, sec-butane, isobutane, n-pentane, isopentane, cyclopentane, hexanes, etc.
- halogenated hydrocarbons such as dichloromethane, dichloromonofluoromethane, chlorodifluoroethane, 1,1-dichloro-2,2,2-trifluoroethane, 2,2-dichloro-2-fluoroethane, in particular chlorine-free fluorocarbons, such as difluoromethane, trifluoromethane, difluoroethane, 1, 1, 1, 2-tetrafluoroethane, 1, 1, 2,2- Tetrafluoroethane, 1, 1, 1, 3,3-pentafluoropropane, 1, 1, 1, 3,3,3-hexa
- C3-C6 alkanes e.g.
- the subsequent curing typically takes place at a temperature of about 10 to 80 ° C, especially 15 to 60 ° C, especially at room temperature.
- any residual moisture that may still be present can be removed using conventional methods, such as B. by convective air drying or
- the polymer component of the polymer material (a) is preferably in the form of a two-component (2K) polymer composition.
- Suitable (2K) polymer compositions comprise or consist of elastomers, thermoplastic elastomers and mixtures thereof. 2K silicone rubbers, 2K polyolefins, 2K polyurethanes and mixtures thereof are preferred.
- the polymer component of the polymer material (a) is in the form of a two-component (2K) polyurethane composition. Suitable two-component
- Polyurethane paints contain z. B. a component (I) and a component (II), the component (I) at least one of the aforementioned
- Polyurethanes are used. Alternatively or additionally, the
- Component (I) contain a prepolymer which contains at least two groups which are reactive toward NCO groups.
- the component (II) contains
- component (II) can contain a prepolymer which contains at least two NCO groups.
- the components (I) and / or (II) can optionally contain further oligomers and / or polymeric constituents. So can e.g. B. in the case of an aqueous two-component (2K) polyurethane composition, component (I) have one or more further polyurethane resins and / or acrylate polymers and / or acrylated polyesters and / or acrylated polyurethanes.
- the other polymers are generally water-soluble or water-dispersible and have hydroxyl groups and optionally acid groups or their salts.
- the other aforementioned components of the polymer material (a) can each be contained only in component (I) or (II) or in part in both.
- the two components (I) and (II) of the two-component (2K) polyurethane composition of the polymer material (a) are produced by the customary methods from the individual constituents with stirring.
- Coating agents are also produced from these two components (I) and (II) by stirring or dispersing using the devices commonly used, for example using a dissolver or the like or using 2-component metering and mixing systems that are also commonly used.
- the polymer material (a) containing a two-component (2K) polyurethane composition can be in the form of an aqueous lacquer.
- a suitable aqueous two-component (2K) polyurethane varnish in the ready-to-use state usually contains, based on the total weight of the composition:
- At least one polyurethane especially a urea group-containing polyurethane (previously defined as component a2)) 0 to 20% by weight of at least one non-conductive polymer different from a2) (previously defined as component a3)),
- plastics such as ABS, AMMA, ASA, CA, CAB, EP, UF, CF, MF, MPF, PF, PAN, PA, PC, PE, HDPE, LDPE, LLDPE, UHMWPE, PET, PMMA,
- PP, PS, SB, PUR, PVC, RF, SAN, PBT, PPE, POM, PUR-RIM, SMC, BMC, PP-EPDM and UP (abbreviations according to DIN 7728T1) can be coated.
- the plastics to be coated can of course also be polymer blends, modified plastics or fiber-reinforced plastics.
- the two-component (2K) polyurethane compositions according to the invention can also be applied to other substrates, such as
- metal, wood or paper or mineral substrates can be applied.
- non-functionalized and / or non-polar substrate surfaces these can be subjected to a pretreatment, such as with plasma or flame, before coating.
- the substrates can be primed with the two-component (2K) polyurethane composition according to the invention prior to coating.
- All common primers both conventional and water-based primers, can be used as primers.
- both radiation-curable and thermally curable or dual primers can be used.
- the application takes place with the help of customary methods, for example spraying, knife coating, dipping, brushing or by means of coil coating processes.
- compositions according to the invention are usually at
- Another object of the invention is a method for producing a composition for shielding electromagnetic radiation, comprising the steps: a) providing at least one conductive filler and
- Another object of the invention is a method for producing a substrate shielded from electromagnetic radiation, comprising or consisting of a composition for shielding
- composition for shielding electromagnetic radiation in which such a composition for shielding electromagnetic radiation is provided, and the substrate is formed from the composition for shielding electromagnetic radiation (molding), or the composition for shielding is made into a substrate
- substrate is understood to mean any sheet-like structure to which the composition according to the invention can be applied or into which the composition according to the invention can be incorporated or which consists of the composition according to the invention.
- a preferred embodiment comprises a method as defined above, in which a drying and / or curing step also follows.
- composition for shielding electromagnetic radiation with at least one additive different from the conductive filler a Suitable additives are those mentioned above.
- the substrate is formed from the composition for shielding electromagnetic radiation.
- the composition according to the invention is plasticized and subjected to a shaping step. These are shaping steps known to the person skilled in the art, such as casting molds,
- Plastic molding compounds are used.
- the incorporation can be carried out either in the melt or in the solid phase.
- a combination of these methods is also possible, e.g. B. by premixing in the solid phase and then mixing in the melt.
- Conventional devices, such as kneaders or extruders, can be used.
- composition obtained by electromagnetic radiation in the substrate can then be subjected to at least one further process step.
- This is preferably selected from a shape
- Drying, hardening or a combination thereof Drying, hardening or a combination thereof.
- a substrate is at least partially covered with the composition for shielding
- the substrates are coated with the compositions described for shielding electromagnetic radiation by customary methods known to those skilled in the art. To do this, the
- composition for shielding electromagnetic radiation or a coating composition containing this applied to the substrate to be coated in the desired thickness and optionally dried and / or optionally partially or fully cured. This process can be repeated one or more times if desired.
- the application to the substrate can be carried out in a known manner, e.g. B. by dipping, spraying, troweling, knife coating, brushing, rolling, dip-coating, rolling, casting, lamination, back injection, in-mold coating, coextrusion, screen printing, pad printing, centrifuging, reactive injection molding (RIM), compression molding and Transfer molding.
- the composition for shielding electromagnetic radiation comprises at least one thermoplastic elastomer (TPE) and is applied to the substrate to be coated by lamination, back injection molding, coextrusion, reactive injection molding (RIM), compression molding or transfer molding.
- the coating can e.g. B. after a spraying process, such as. B. air pressure, airless or electrostatic spray processes can be applied one or more times.
- a spraying process such as. B. air pressure, airless or electrostatic spray processes can be applied one or more times.
- the coating thickness i.e. H. the thickness of the conductive layer is generally in a range from about 100 to 5000 ⁇ m, preferably 500 to 2000 ⁇ m.
- Coatings can be used under normal temperature conditions, i.e. H. can be applied without heating the coating, but also at elevated temperature.
- the coating can e.g. B. during and / or after application at elevated temperature, e.g. B. at 25 to 200 ° C, preferably 30 to 100 ° C dried and / or cured.
- Another object of the invention is the use of
- composition according to the invention for shielding electromagnetic rays.
- the composition according to the invention as defined above, can be used for shielding electromagnetic radiation in electronic housings.
- An electric vehicle is generally a means of transport that is at least temporarily or partially powered by electrical energy.
- Battery-powered vehicles are also known internationally as Battery Electric Vehicles (BEV). Examples of electric vehicles are road vehicles, rail vehicles, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV, SUV
- Watercraft or aircraft such as electric cars, electric scooters, electric motorcycles, electric tricycles, battery and trolley buses,
- Electric trucks Electric trains (trains and trams), electric bicycles and electric scooters.
- Electric vehicles within the meaning of the invention are also hybrid electric vehicles (Hybrid Electric Vehicle, HEV) and
- FC (E) V Fuel Cell (Electric) Vehicle, FC (E) V.
- electrical energy is generated from hydrogen or methanol by a fuel cell and converted directly into motion with the electric drive or temporarily stored in a battery.
- the substrates according to the invention are advantageously suitable for the production of electronic housings for e-mobility vehicles in these four areas.
- Modern electric vehicles are based on brushless electric motors, such as asynchronous machines or permanent magnet synchronous machines (brushless DC machine).
- asynchronous machines or permanent magnet synchronous machines (brushless DC machine).
- brushless DC machine The commutation of the supply voltage in the phases of the motor, and thus the generation of the necessary for operation
- Rotating field takes place electronically by so-called inverters.
- the electric motor acts as a generator and supplies an alternating voltage that is rectified by the inverter and the
- Traction battery can be supplied (recuperation). Either
- Electric car is the onboard charger.
- Charging stations for charging electric vehicles are either single-phase or three-phase
- the substrates according to the invention are especially suitable for shielding electromagnetic radiation from inverters, DC / DC converters and onboard chargers.
- Substrates are especially suitable for the shielding of navigation and Communication devices, such as GPS systems in particular, protect against electromagnetic radiation.
- compositions according to the invention are suitable for producing seals or containers with a good sealing effect.
- the EMI shielding compositions are preferably based on the following compositions:
- the EMI shielding composition contains one or more than one of the following polymer matrices
- Compounded TPE (comprising anti-aging agents, plasticizers and possibly other additives) or
- Compounded TPU (comprising anti-aging agents, plasticizers and possibly other additives) or
- Compounded TPV including anti-aging agents, plasticizers and possibly other additives
- Proportion in each case 20-95% by weight, preferably 40-95% by weight, based on the total weight of the EMI-shielding composition?
- the EMI shielding composition contains one or more than one of the following conductive fillers
- Metals used including alloys: iron, stainless steel, copper, aluminum
- Cross-section geometries round, triangular, square, rectangular
- Diameter 1 gm to 500 gm
- Fig. 1 Sample body with a sprayed-on seal and overmolded with a
- composition according to the invention is produced in an extruder and then granulated.
- the shaping is done by injection molding to standardized ASTM test pieces. Alternatively, panels with the dimensions
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102019118092.9A DE102019118092A1 (de) | 2019-07-04 | 2019-07-04 | Verfahren zur Herstellung eines gegenüber elektromagnetischer Strahlung abgeschirmten Bauteils |
PCT/EP2020/068200 WO2021001298A1 (de) | 2019-07-04 | 2020-06-29 | Verfahren zur herstellung eines gegenüber elektromagnetischer strahlung abgeschirmten bauteils |
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EP3994965A1 true EP3994965A1 (de) | 2022-05-11 |
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EP20735363.2A Pending EP3994965A1 (de) | 2019-07-04 | 2020-06-29 | Verfahren zur herstellung eines gegenüber elektromagnetischer strahlung abgeschirmten bauteils |
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US (1) | US20220362976A1 (de) |
EP (1) | EP3994965A1 (de) |
JP (1) | JP7438247B2 (de) |
KR (1) | KR102616163B1 (de) |
CN (1) | CN114080424A (de) |
DE (1) | DE102019118092A1 (de) |
WO (1) | WO2021001298A1 (de) |
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DE102017121060A1 (de) * | 2017-05-24 | 2018-11-29 | Webasto SE | Elektrisches Heizgerät |
IT201900012636A1 (it) * | 2019-07-23 | 2021-01-23 | Bridgestone Europe Nv Sa | Metodo per produrre un dispositivo elettronico per un articolo di gomma |
DE102020116305A1 (de) | 2020-02-04 | 2021-08-05 | Georg Fritzmeier - GmbH & Co. KG | Abdeckstruktur und Verfahren zum Herstellen einer Abdeckstruktur |
CN112920569A (zh) * | 2021-04-07 | 2021-06-08 | 深圳市骏鼎达新材料股份有限公司 | 一种碳纤维复合材料及其制备方法 |
US11858239B2 (en) | 2021-09-22 | 2024-01-02 | AISIN Technical Center of America, Inc. | Polymer-graphene energy absorbing composite structures and methods of manufacture |
CN117737618A (zh) * | 2024-02-18 | 2024-03-22 | 中国第一汽车股份有限公司 | 玄武岩纤维增强基复合铝材及其制备方法和汽车 |
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JP2776753B2 (ja) * | 1994-11-24 | 1998-07-16 | 埼玉日本電気株式会社 | プラスチックシールド筐体 |
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JP2005229007A (ja) * | 2004-02-16 | 2005-08-25 | Asahi Kasei Chemicals Corp | 電磁波シールド性を有する剛性、制振性に優れた樹脂製筐体。 |
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2019
- 2019-07-04 DE DE102019118092.9A patent/DE102019118092A1/de active Pending
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2020
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- 2020-06-29 US US17/623,267 patent/US20220362976A1/en active Pending
- 2020-06-29 JP JP2021578130A patent/JP7438247B2/ja active Active
- 2020-06-29 KR KR1020217042713A patent/KR102616163B1/ko active IP Right Grant
- 2020-06-29 EP EP20735363.2A patent/EP3994965A1/de active Pending
- 2020-06-29 WO PCT/EP2020/068200 patent/WO2021001298A1/de active Search and Examination
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DE102019118092A1 (de) | 2021-01-07 |
WO2021001298A1 (de) | 2021-01-07 |
KR20220011739A (ko) | 2022-01-28 |
US20220362976A1 (en) | 2022-11-17 |
JP2022539409A (ja) | 2022-09-08 |
KR102616163B1 (ko) | 2023-12-19 |
CN114080424A (zh) | 2022-02-22 |
JP7438247B2 (ja) | 2024-02-26 |
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