Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
  • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
  • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B27/00—Layered products comprising a layer of synthetic resin
  • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
  • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
  • B42D25/23—Identity cards
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/40—Manufacture
  • B42D25/45—Associating two or more layers
  • B42D25/455—Associating two or more layers using heat
• • 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
  • C08K5/00—Use of organic ingredients
  • C08K5/04—Oxygen-containing compounds
  • C08K5/10—Esters; Ether-esters
  • C08K5/101—Esters; Ether-esters of monocarboxylic acids
  • C08K5/103—Esters; Ether-esters of monocarboxylic acids with polyalcohols
• • G—PHYSICS
  • G06—COMPUTING OR CALCULATING; COUNTING
  • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
  • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
  • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
  • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
  • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
  • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2250/00—Layers arrangement
  • B32B2250/24—All layers being polymeric
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
  • B32B2262/10—Inorganic fibres
  • B32B2262/101—Glass fibres
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
  • B32B2264/10—Inorganic particles
  • B32B2264/101—Glass
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/40—Properties of the layers or laminate having particular optical properties
  • B32B2307/402—Coloured
  • B32B2307/4026—Coloured within the layer by addition of a colorant, e.g. pigments, dyes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/40—Properties of the layers or laminate having particular optical properties
  • B32B2307/412—Transparent
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2307/00—Properties of the layers or laminate
  • B32B2307/70—Other properties
  • B32B2307/75—Printability
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2369/00—Polycarbonates
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2425/00—Cards, e.g. identity cards, credit cards
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B32—LAYERED PRODUCTS
  • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
  • B32B2429/00—Carriers for sound or information
• • B42D2033/30—
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
  • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
  • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
  • B42D25/40—Manufacture
  • B42D25/45—Associating two or more layers
  • B42D25/46—Associating two or more layers using pressure
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
  • Y10T156/10—Methods of surface bonding and/or assembly therefor
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/31504—Composite [nonstructural laminate]
  • Y10T428/31507—Of polycarbonate

Definitions

• the invention relates to a film multilayer composite which has at least one layer of polycarbonate or copolycarbonate, characterized in that the polycarbonate or copolycarbonate additionally contains one or more specific additives.
• Polycarbonate, polyestercarbonate or even PC / polyester blends such as polyethylene terephthalate, polybutylene terephthalate or polycyclohexanedimethanol cyclohexanediocarboxylate (PCCD) such as e.g. with the trade names Lexan SLX® or XYLEX® (both Sabic Innovative Plastic) are used, in particular, in the field of electronics, for decorative and functional shutters in the household appliance sector, as cover films, e.g. used for sporting goods, for ID cards and blister packs. Further fields of application are in the field of automotive engineering, such as e.g. Body panels or exterior mirrors, or in the telecommunications sector, such as e.g. Mobile phone shells and cell phone keyboards.
• the films are characterized by high transparency, impact resistance and heat resistance.
• Portable data carriers are used in a variety of embodiments for a variety of applications.
• the portable data carriers often have a label, incorporated security features, a magnetic strip and / or an integrated circuit.
• the portable data carriers can be designed as plastic cards with standardized dimensions and can be used, for example, for carrying out transactions of cashless payment transactions or for proving an access authorization to a mobile radio network.
• portable data carriers are also known, which are generally each formed thinner and larger in size than the standard plastic cards and are integrated as a page in a passport book.
• a known method for the production of high-quality portable data carriers is the lamination of a plurality of plastic films.
• the production of complex built-up portable data carriers from many individual films is complex and severely restricted with regard to the selection of materials, in particular of adjacent individual films.
• the individual slides have a have certain minimum thickness to allow handling. It has therefore already begun to use for the production of portable data carriers coextruded films, which consist of several layers. The individual layers are connected to a multilayer film during their production. Several of these multilayer films can then be bonded together by lamination.
• a contactless chip card which has a core film arranged between two cover films.
• the cover films are each connected to the core film by means of a bonding layer.
• the bonding layer is in each case in particular formed as a layer coextruded with the cover films and / or with the core film.
• the cover films and the core film are made of polycarbonate, for example.
• the tie layers may consist of a modified polyester called PETG.
• US Pat. No. 5,928,788 discloses inter alia a multilayer data carrier which is produced by lamination of a core film and two cover films.
• the core film and the cover films consist in particular of PETG.
• the cover films are externally enriched with "antiblock" substances, for which the cover films are each coextruded from two layers, only one of which contains the antiblocking substances.
• WO 2002/41245 A2 discloses a multifunctional card body which is formed from a plurality of films interconnected by lamination, wherein at least one film consists of at least two coextrusion layers. In particular, it is provided to connect a core film on both sides with a cover film.
• the cover sheets may each be formed as a coextruded polycarbonate sheet having two or three coextrusion layers.
• the core film may have two different types of coextrusion layers. The two types of coextrusion layers follow one another alternately, whereby a layer structure of three or five alternating coextrusion layers is formed.
• One type of coextrusion layer may consist of polycarbonate or polyethylene terephthalate (PET).
• PET polyethylene terephthalate
• the other type of coextrusion layer may consist of a thermoplastic elastomer.
• EP-A-0 706 152 discloses laminated smart cards or smart cards composed of thermoplastic materials. This composite produced from laminatable films has clear advantages over cards which have been produced by a complicated adhesive process, for example by means of cyan-acrylate adhesives. Due to its good mechanical properties, polycarbonate is particularly suitable for the films described above.
• Polycarbonates with additives from the class of mold release agents are, for. In WO 99/05205 A or US Pat. No. 6,008,280. These polycarbonates are used, for example, as substrate materials for optical data carriers, since they have better processing properties in the injection molding process. However, card applications as described above or lamination properties of such modified polycarbonates are not described.
• DE 10 2007 004 322 A1 discloses multilayer composite materials comprising at least one layer of polycarbonate, optionally containing mold release agents, for example pentaerythritol tetrasteate and glycerol monostearate, preferably in an amount of 0.02-1% by weight.
• mold release agents for example pentaerythritol tetrasteate and glycerol monostearate, preferably in an amount of 0.02-1% by weight.
• mold release agents are used as release agents.
• these agents are known to have anti-adhesion properties. It can therefore not be concluded from the abovementioned document that the above-mentioned mold release agents show adhesion-improving properties in higher concentrations.
• the production of the finished card body or multilayer composite material is effected in particular by a laminating press, in which the film bundle is intimately connected under the action of pressure. It is advantageous if at least one of the core films or the cover films has a very good adhesion tendency during the lamination process. As a result, the process of producing these film composites can be accelerated. Furthermore, the adhesion of the cover films on the core film is improved.
• This core film can be transparent and / or colored, and have good mechanical properties.
• the cover sheets may be laser printable. Therefore, polycarbonate is preferably used here.
• Polycarbonate films however, have the disadvantage of a high processing temperature in the laminating process. Furthermore, it takes a longer period to laminate the films. As a result, the lamination cycles described above are prolonged and long production times are required. Also, during the use phase of the finished film laminate, delamination may occur due to insufficient adhesion between the films.
• the object was to provide a film for producing a multi-layer system, which meets the requirements of good mechanical properties and compared to the prior art has improved laminability, improved adhesion in lamination and processability. At the same time, this improved film should meet possible requirements for transparency, colorability and laser printability. - -
• a multilayer composite which is characterized in that it comprises at least one film / layer comprising polycarbonate or copolycarbonate and in that the polycarbonate or copolycarbonate additionally comprises one or more additives selected from the group of compounds of the general formulas (1 ) to (8) contains:
• R 1 are independently selected from the group consisting of C 10 -C 25 alkyl, C 10 -C 25 alkoxy, and C 10 -C 25 alkyl-substituted aryl, wherein the term "C 10 -C 25 alkyl” denotes a linear or branched hydrocarbon radical stands, the 10th in particular for linear C 12 -C 20 -alkyl and especially for pentadecyl and in which the term "C 10 -C 25 -alkyl-substituted aryl” stands for a phenyl or naphthyl radical which is substituted by C 10 -C 25 -alkyl radicals,
• R2 are independently selected from the group of C10-C25 alkylcarbonyl or hydrogen
• R3 are independently selected from the group of C10-25
• C 10 -C 25 -alkyl stands for a linear or branched hydrocarbon radical having 10 to 25 carbon atoms, in particular for linear C 12 -C 20 -alkyl and very particularly for C 12 -C 18 -alkyl Pentaerythritol tetrastearate, glycerol monostearate, propanediol distearate, and stearyl stearate.They are used alone or in a mixture, preferably in an amount of 1-10%, preferably from 1.1 to 8% by weight, more preferably from 1.5 to 7% by weight. %, and most preferably from 2.1 to 6 wt .-%, based on the composition of the composition used.
• film multilayer composite here stands for a material of 2, 3, 4, 5 or more layers which are interconnected, eg by coextrusion or lamination.
• the layers can in this case consist of the same or different materials In the sense of the present invention, these are nevertheless different layers, if applied in eg separate working steps or contain different additives.
• At least one layer means that the film multilayer composite can have one or more such layers.
• Suitable polycarbonates for the production of the plastic composition according to the invention are all known polycarbonates. These are homopolycarbonates and thermoplastic polyester carbonates and copolycarbonates, in which any mixture of bisphenolates can be used. They preferably have average molecular weights Mw of from 18,000 to 40,000 g / mol, preferably from 26,000 to 36,000 g / mol and in particular from 28,000 to 35,000 g / mol, determined by gel permeation chromatography (GPC) using polycarbonate as calibration substance.
• GPC gel permeation chromatography
• Diphenols suitable for the preparation of the polycarbonates to be used are, for example, hydroquinone, resorcinol, dihydroxydiphenyl, bis (hydroxyphenyl) alkanes, bis (hydroxyphenyl) -cycloalkanes, bis (hydroxyphenyl) sulfides, bis (hydroxyphenyl) ethers, Bis (hydroxyphenyl) ketones, bis (hydroxyphenyl) sulfones, bis (hydroxyphenyl) sulfoxides, ⁇ , ⁇ '-bis (hydroxyphenyl) diisopropylbenzenes, and their alkylated, nuclear-alkylated and ring-halogenated compounds.
• Preferred diphenols are 4,4'-dihydroxydiphenyl, 2,2-bis (4-hydroxyphenyl) -l-phenyl-propane, 1,1-bis (4-hydroxyphenyl) -phenyl-ethane, 2,2-bis- (4-hydroxyphenyl) propane, 2,4-bis (4-hydroxyphenyl) -2-methylbutane, 1,3-bis [2- (4-hydroxyphenyl) -2-propyl] benzene (bisphenol M), , Bis- (3,5-dimethyl-4-hydroxyphenyl) -methane, 2,2-bis- (3,5-dimethyl-4-hydroxyphenyl) -propane, bis- (3,5-dimethyl-4-hydroxyphenyl) sulfone, 2,4-bis (3,5-dimethyl-4-hydroxyphenyl) -2-methylbutane, 1,3-bis [2- (3,5-dimethyl-4-hydroxyphenyl) -2-propyl] benzene and 1, 1-bis (4
• diphenols are 4,4'-dihydroxydiphenyl, 1,1-bis (4-hydroxyphenyl) -phenyl-ethane, 2,2-bis (4-hydroxyphenyl) -propane, (bisphenol A, BPA) 2,2 Bis (3-methyl-4-hydroxyphenyl) -propane, 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) -propane, 1,1-bis (4-hydroxyphenyl) -cyclohexane and 1, l-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane (bisphenol TMC).
• Mono-functional phenols such as phenol, p-tert-butylphenol, isooctylphenol, cumylphenol, their chlorocarbonic acid esters or acid chlorides of monocarboxylic acids or mixtures of these can be used to control the molecular weight.
• the amount of chain terminators is in each case from 0.1 to 10 mol%, based in the case of the phenolic chain terminators on moles of diphenols.
• trifunctional compounds are 2,4-dihydroxybenzoic acid, trimesic acid, cyanuric chloride and 3,3-bis (3-methyl-4-hydroxyphenyl) -2-oxo-2,3-dihydroindole.
• Preferred branching agents are 3,3-bis (3-methyl-4-hydroxyphenyl) -2-oxo-2,3-dihydroindole (IBK) and 1,1,3-tri- (4-hydroxyphenyl) -ethane (THPE) ,
• Preferred polycarbonates are, in addition to the bisphenol A homopolycarbonates, the copolycarbonates of bisphenol A with up to 15 mol%, based on the molar sums of diphenols, of diphenols other than those preferred or particularly preferred.
• the polycarbonates described may be mixed with various additives.
• additives serves to extend the useful life or the color (stabilizers), to simplify the processing (eg other demolders named above, flow aids, antistatics) or to adapt the polymer properties to specific loads (impact modifiers, such as rubbers; Flame retardants, colorants, glass fibers).
• additives can be added to the polymer melt individually or in any desired mixtures or several different mixtures, specifically directly during the isolation of the polymer or after the melting of granules in a so-called compounding step.
• the additives or their mixtures as a solid, ie as a powder, or as Melt be added to the polymer melt.
• Another type of dosing is the use of masterbatches or mixtures of masterbatches of the additives or additive mixtures.
• Suitable additives are described, for example, in “Additives for Plastics Handbook, John Murphy, Elsevier, Oxford 1999", in the “Plastics Additives Handbook, Hans Zweifel, Hanser, Kunststoff 2001”.
• Suitable antioxidants or thermal stabilizers are, for example:
• Suitable complexing agents for heavy metals and for the neutralization of alkali traces are o / m phosphoric acids, fully or partially esterified phosphates or phosphites.
• Suitable light stabilizers UV absorbers are: 2- (2'-hydroxyphenyl) benzotriazoles, 2-hydroxybenzophenones, esters of substituted and unsubstituted benzoic acids, acrylates, sterically hindered amines, oxamides, 2.8.
• 2- (2-hydroxyphenyl) -l, 3,5-triazines Preference is given to substituted benzotriazoles.
• Polypropylene glycols alone or in combination with e.g. Sulfones or sulfonamides as stabilizers can be used against damage from gamma rays.
• Suitable flame-retardant additives are phosphate esters, ie triphenyl phosphate, resorcinol diphosphoric acid esters, bromine-containing compounds, such as brominated phosphoric acid esters, brominated oligocarbonates and polycarbonates, and preferably salts of fluorinated organic sulfonic acids.
• Suitable impact modifiers are butadiene rubber grafted with styrene-acrylonitrile or methyl methacrylate, ethylene-propylene rubbers grafted with maleic anhydride, E- ethyl and Butylacrylatkautschuke grafted with methyl methacrylate or styrene-acrylonitrile, interpenetrating siloxane and acrylate networks with grafted methyl methacrylate or styrene-acrylonitrile.
• colorants such as organic dyes or pigments or inorganic pigments, IR absorbers, individually, in admixture or in combination with stabilizers, glass fibers, glass (hollow) balls, inorganic fillers may be added. It is also possible to use carbon black as an additive.
• the polycarbonate layer according to the invention may contain a laser-sensitive additive.
• a laser-sensitive additive carbon black or an infrared light-absorbing dye is suitable.
• Suitable additives are, in particular, color pigments and metal salts, copper hydroxide phosphate iriodin, a pearlescent pigment, as commercially available from Merck, and above all carbon black. These additives are admixed to the polycarbonate according to the invention, in particular in the order of a few parts per thousand to a maximum of 10 percent.
• the polycarbonate layer according to the invention may also contain further inorganic fillers.
• Suitable inorganic fillers for obtaining an opaque or translucent polycarbonate layer are, for example, conventional inorganic pigments, in particular metals or metal oxides such as aluminum oxides, silicic acid, titanites, and also alkaline metal salts such as carbonates or sulfates of calcium or barium.
• Suitable particulate fillers may be homogeneous and consist predominantly of a material such as titanium dioxide or barium sulfate alone. Alternatively, at least a portion of the filler may be heterogeneous. Thus, the actual filler may still be offset with a modifier.
• the actual filler can still be treated with a surface chenmodifikator be provided such as a pigment, a processing aid, a surfactant or other modifier to improve the compatibility with the polycarbonate or change.
• a surface chenmodifikator be provided such as a pigment, a processing aid, a surfactant or other modifier to improve the compatibility with the polycarbonate or change.
• the polycarbonate layer contains titanium dioxide.
• the amount of these inorganic fillers in the polycarbonate is preferably 2-50, more preferably 3-30% by weight.
• the continuous production process for polycarbonate by the interfacial process and the melt condensation process is suitable.
• the mixing of the individual constituents can be carried out in a known manner both successively and simultaneously both at room temperature and at elevated temperature.
• the incorporation of the additives in the compositions of the invention is preferably carried out in a known manner by mixing polymer granules with the additives at temperatures of about 200 to 330 0 C in conventional units such as internal mixers, single screw extruders and Dop- pelwellenextrudern example by melt compounding or melt extrusion or by mixing the solutions of the polymer with solutions of the additives and subsequent Steaming the solvent in a known manner.
• the films are preferably produced by extrusion or coextrusion.
• the polycarbonate granules are fed to the hopper of an extruder and passes through this into the plasticizing system, consisting of screw and cylinder.
• the plasticizing system conveys and melts the material.
• the molten plastic is forced through a slot die.
• a filter device Between plasticizing and slot die a filter device, a melt pump, stationary mixing elements and other components can be arranged. If necessary, the melt leaving the nozzle reaches a smoothing calender. In the nip of the smoothing calender, the final shaping takes place.
• the shape fixation is finally done by cooling - this may e.g. alternately on the smoothing rollers and in the ambient air.
• the other facilities are used for transport, the application of protective film, the winding of the extruded films.
• the material to be co-extruded is plasticized in the same way in one or more further extruders.
• the co-melt (s) is (are) in a special coex- adapter in front of the nozzle or in a special coexing nozzle with the main material merges.
• the coex layer can be applied both on one side as well as on both sides of the base layer.
• Subsequent processing of the foils may take place by thermoforming or hot forming or surface treatments such as the use of scratch-resistant coatings, water-spreading layers and other functional layers.
• the foils may be smooth on one or both sides or be frosted or structured on one or both sides.
• the thickness of the films is 1 - 2000 microns, preferably 5 - 1000 microns, most preferably 10 - 850 microns.
• the films of the invention are particularly suitable for the production of the above-described cards, such as smart ID cards, smart cards in general, EC cards, credit cards, insurance cards, passports, RFID tags, driver's licenses, etc. These data carriers consist of differently constructed core and cover films. Coextrusion films are also used here.
• the films or coextrusion films according to the invention can be constructed in any desired manner with other films, for example conventional polycarbonate films, films of polyesters, co-polyesters and / or crystalline, semicrystalline or microcrystalline polyesters.
• foils made of PVC, ABS, PETG or PET or their mixed forms such as PC / ABS can additionally be used.
• the invention therefore also composite systems of these materials and the modified polycarbonate.
• the arrangement of the films can be chosen depending on the application in various ways.
• the individual films or coextrusion films can be different - 1 -
• the data medium or the card can be constructed symmetrically or asymmetrically.
• the data carrier can for example be designed as a page of a passport book.
• the data carrier is also possible to form the data carrier as a plastic card, in particular as a magnetic stripe card or a chip card.
• the foil according to the invention can be metallised, structured or printed - e.g. with tracks.
• the structuring and printing can be done by screen printing.
• the application of the films is not limited to the data carriers described above, but these can also be used in chip half cards, key heads, buttons, bracelets, watch components, etc. are used.
• the invention is further illustrated by the following examples.
• Polycarbonate-additive mixtures of polycarbonate Makrolon M3108 (Bayer MaterialScience AG) and the additives mentioned in Table 1 (propylene glycol distearate from Faci, Italy; Loxiol G32 and glycerol monostearate from Cognis Oleochemicals, Germany; tadecylphenolformal according to its own synthesis analogous to EP 1664174-B1) in the concentrations indicated there.
• the preparation of the additive-containing polycarbonate granules (compounds 1-8) based on Makrolon M3108 was made by compounding on a twin-screw extruder ZE 25/5 Fa. Berstorf at a temperature of 300 0 C.
• films were prepared from 20% solutions of compounds 1-8 in methylene chloride.
• polycarbonate films in a width of 200 mm were drawn on an automatic film or film drawing machine Coatmaster 509 MC from Erichson with evaporation of the solvent (at 30 ° C. and 5 mm / s advance of the doctor blade).
• the resulting films sen a thickness of about 50 microns and were cut to size for the production of multi-layer composite (50 x 50 mm).
• the cast films obtained from compounds 1-8 were each coated against a sheet of Makrolon M3108 (commercially available as well as itself) in a hot press from Pual Otto Weber, model PN200 under a pressure of 200 kN for 5 minutes at different temperatures (150 , 140, 130 and 120 ° C).
• the film multilayer composite containing the cast film of compound 1 is given the designation "System 1”
• compound 2 is referred to as "system 2”
• the other film multilayer composites are correspondingly designated.
• the tests show the increased adhesion of the films of the invention in lamination compared to the two blank values 1 and 2.
• the composites show increased adhesion even at lower lamination temperatures.

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• Engineering & Computer Science (AREA)
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• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Polymers & Plastics (AREA)
• Medicinal Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Computer Hardware Design (AREA)
• Microelectronics & Electronic Packaging (AREA)
• Theoretical Computer Science (AREA)
• General Physics & Mathematics (AREA)
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• Laminated Bodies (AREA)
• Compositions Of Macromolecular Compounds (AREA)
• Manufacturing & Machinery (AREA)
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• 2009
  • 2009-02-06 DE DE200910007762 patent/DE102009007762A1/de not_active Withdrawn
• 2010
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