MX2007012920A - Plastic objects for metal-plating with improved shaping properties - Google Patents

Plastic objects for metal-plating with improved shaping properties

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Publication number
MX2007012920A
MX2007012920A MXMX/A/2007/012920A MX2007012920A MX2007012920A MX 2007012920 A MX2007012920 A MX 2007012920A MX 2007012920 A MX2007012920 A MX 2007012920A MX 2007012920 A MX2007012920 A MX 2007012920A
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MX
Mexico
Prior art keywords
weight
component
sheets
sheet
mixed
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Application number
MXMX/A/2007/012920A
Other languages
Spanish (es)
Inventor
Niessner Norbert
Schneider Norbert
Warzelhan Volker
Wagner Norbert
Lochtman Rene
Lippert Gerald
Maas Heiko
Pfister Jurgen
Sobotka Bettina
Scheibitz Matthias
Dahlke Michael
Original Assignee
Basf Aktiengesellschaft
Dahlke Michael
Lippert Gerald
Lochtman Rene
Maas Heiko
Niessner Norbert
Pfister Juergen
Scheibitz Matthias
Schneider Norbert
Sobotka Bettina
Wagner Norbert
Warzelhan Volker
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Application filed by Basf Aktiengesellschaft, Dahlke Michael, Lippert Gerald, Lochtman Rene, Maas Heiko, Niessner Norbert, Pfister Juergen, Scheibitz Matthias, Schneider Norbert, Sobotka Bettina, Wagner Norbert, Warzelhan Volker filed Critical Basf Aktiengesellschaft
Publication of MX2007012920A publication Critical patent/MX2007012920A/en

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Abstract

Films or plates made of a plastic mixture and capable of being metal-plated are disclosed, comprising, in relation to the total weight of components A, B, C and D, which add up to 100%by weight:(a) 5-50%by weight of a thermoplastic polymer as component A;(b) 50-95%by weight of a metal powder having an average particle diameter ranging from 0.01-100μm (determined by the method defined in the description), the metal having a more negative normal potential in an acid solution than silver, as component B;(c) 0-10%by weight of a dispersant as component C;and (d) 0-40%by weight fibrous or particulate fillers or their mixtures as component D. The elongation at tear of component A (determined by the method defined in the description) is 1.1-100 times higher than the elongation at tear of the plastic mixture comprising components A, B and optionally C and D (determined by the method defined in the description). The tensile strength of component A (determined by the method defined in the description) is 0.5-4 times higher than the tensile strength of the plastic mixture comprising components A, B and optionally C and D (determined by the method defined in the description). Also disclosed are thermoplastic moulding compounds for producing these films or plates that can be metal-plated, a granulate comprising these thermoplastic moulding compounds, stratified composite films or plates and mouldings comprising these films or plates, metal-plated polymer bodies comprising these films or plates, stratified composite films or plates and mouldings, processes for producing these objects, the use of these objects as EMI shieldings and absorbers, dampers or reflectors for electromagnetic radiation, oxygen scavengers, electroconducting components, gas barriers, and decorative elements comprising these objects.

Description

PLASTIC OBJECTS FOR METAL PLATING WITH IMPROVED PROPERTIES OF CONFORMATION DESCRIPTION | The invention relates to plastic sheets or sheets produced from a mixture of plastics comprising, based on the total weight of components A, B, C and D, which gives a total of 100% by weight, from 5 to 50% by weight of a thermoplastic polymer as component A, from 50 to 95% by weight of a metal powder with an average particle diameter of 0.01 to 100 μm (determined by the method defined in the description), wherein the normal electrode potential of the metal in acid solution is more negative than that of silver, as component B, 0 to 10% by weight of a dispersing agent as component C, and 0 to 40% by weight of fibrous or particle fillings or their mixtures as component D, where the tensile-to-rupture deformation of component A (determined by the method defined in the description) is greater by a factor of 1.1 to 100 than the tensile-to-rupture deformation of the plastics mixture comprising components A, B and, if present, C and D (determined by the method defined in the description), and wherein the tensile deformation of component A (determined by the method defined in FIG. description) is greater by a factor of 0.5 to 4 than the tensile strain of the mixture of plastics comprising components A, B, and, if present, C and D (determined by the method defined in the definition). The invention further relates to thermoplastic molding compositions for the production of these metallizable sheets or sheets, to a palletized material comprising these thermoplastic molding compositions, to sheets in mixed layers or sheets in mixed layers, and to molds, said sheets comprising sheets or sheets in mixed layers or sheets in mixed layers, and molds, to processes for the production of these articles, to the use of these articles, and also to EMI protective systems, such as absorbers, attenuators, or reflectors for electromagnetic radiation, sweepers of oxygen, components I electrically conductive, gas scavengers, and decorative parts comprising these articles. The plastics compositions comprising metallic powders are known and used in a wide variety of application sectors, and the same applies to metallized plastic sheets or metallized plastic molds. by way of example, JP-A 2003-193103 describes sheets of polymer filled with metallic powder as absorbents for electromagnetic radiation. WO 03/10226 describes single or multi-layered sheets, filled with metal as oxygen scavengers. The patent of E.U.A. No. 5,147,718 discloses multilayer plastic sheets with metal powder as suitable radar absorbers. In addition, plastic articles comprising metallic powder can be metallized by a currentless and / or electroplated method. Metallized plastic articles of this type can be used as electrical components, for example, since they are electrically conductive. In addition, they are widely used among other things in the decorative sector, since they have lower weight and lower production costs than articles made entirely of metal, while their appearance is identical. WO 86/02882, DE-A 1 521 152, and DE-A 1 615 786 describe the application of binder systems comprising iron and lacquer systems comprising iron to plastic products, and subsequently copper is deposited here by a method without current, and this is followed by metallization by a US patent method No. 6,410,847 teaches copper or nickel layers by a method without polymer injection molded fillers With regard to the mentioned sectors of application and for the formation of metallic layers coherently and firmly adherents, it is generally desired to maximize the content of metallic dust in the plastic. However, as the fill level rises there is usually an associated impairment of the mechanical properties of the plastic mix, and therefore at high fill levels there is inadequate tenacity, flexural strength, and forming ability, for example. The use of forming processes for production involving complex molding of highly filled semi-finished plastic product components, such as sheets, is therefore often subject to restriction or in fact impossible. There are also known processes for metallizing plastics where metallic powders are not necessarily present in the plastic. Although these processes substantially prevent the disadvantageous impediment of the mechanical properties of the plastic via high fill levels, a disadvantage in the production of these metallized articles is the complicated pretreatment required of the plastic surface via chemical or physical n gosification processes or etching, and / or applying layers that act as a primer or adhesion promoter and comprise noble metal, for example, these layers being essential for the deposition of coherent and firmly adherent metal layers. The publication of the company "Ráumliche spritzgegossene Schaltungstráger" [Three-dimensionally injection-molded circuit mounts] of Bayer AG (dated July 31, 2000, described as KU 21131-0007 d, e / 5672445) describes by means of example processes wherein a primer layer comprising organometallic compounds as a catalyst is applied by printing to certain polymer substrates. The metallization by a method without current and, if appropriate, electroplating then occurs. The metallized substrates can then be subjected to a forming process and finally plastic can be applied to the back of the material by an injection molding process.
An object of the present invention is to provide metallizable plastic parts which, when compared to known metallizable plastic parts, have improved mechanical properties, in particular improved toughness, flexural strength, and forming ability, and also improved processing properties, example, in production training processes involving complex molding of components, and which are metallizable without specific pretreatment of the plastic surface, at the same time having comparatively good use properties with respect to, for example, ability to metallize by a method without current or electroplating, absorption, attenuation, and reflection of electromagnetic radiation, or absorption of oxygen. Accordingly, the sheets or sheets mentioned at the beginning have been produced from a plastic mixture comprising, based on the total weight of the components A, B, C and D, which gives a total axis 100% in weight. weight, I to 50% by weight of a thermoplastic polymer as component A, from 50 to 95% by weight of a metal powder with an average particle diameter of 0.01 to 100 μm (determined by the method defined in the description), where the normal electrode potential of the metal in acid solution is more negative than that of silver, as component B, from 0 to 10% by weight of a dispersing agent as component C, and d from 0 to 40% by weight of fibrous fillers or particle or its mixtures as component D, wherein the tensile-to-rupture deformation of component A (determined by the method defined in the description) is greater by a factor of 1.1 to 100 than the tensile-to-rupture deformation of the plastic mixture comprising components A, B and , if present, C and D (determined by the method defined in the description), and where the tensile strain of component A (determined by the method defined in the description) is greater by a factor of 0.5 to 4 than the tensile deformation of the plastics mixture comprising components A, B, and, if present, C and D (determined by the method defined in the definition). The invention also provides thermoplastic molding compositions for the production of these sheets or sheets, and provides comparatively good with respect to, by way of example, ability to metallize by a currentless or electroplating method, absorption, attenuation, and electromagnetic radiation reflection, or oxygen absorption. The inventive sheets or sheets are described below, as well as the articles, processes and inventive uses. i Sheets or sheets: In one embodiment of the invention, the inventive sheets or sheets are based on a plastic mixture comprising, based on the total weight of the components A, B, C and D, which gives a total of 100% by weight, from 5 to 50% by weight, preferably from 10 to 40% by weight, in particular preferably from 20 to 30% by weight, of component A, from 50 to 90% by weight, preferably from 60 to 90% by weight, in particularly preferably from 70 to 80% by weight, of component B, from 0 to 10% by weight, preferably from 0 to 8% by weight, particularly preferably from 0 to 5% by weight, of component C, and from 0 to 40% by weight, preferably from 0 to 30% by weight, particularly preferably from 0 to 10% by weight, of component D.
In a preferred embodiment of the invention, the inventive sheets or sheets are based on a plastic mixture comprising a dispersion agent and comprising, based on the total weight of the components A, B, C and D, which gives a total of 100% by weight, at 5 to 49.9% by weight, preferably from 10 to 39.5% by weight, in particular preferably from 20 to 29% by weight, of component A, from 50 to 94.9% by weight, preferably from 60 to 89.5% by weight, in particular preferably 70 to 79% by weight, of component B, from 0.1 to 10. % by weight, preferably from 0.5 to 8% by weight, in particular preferably from 1 to 5% by weight, of component C, and from 0 to 40% by weight, preferably from 0 to 29.5% by weight, particularly preferably from 0 to 9% by weight, of component D.
A significant feature of the invention is that, apart from the metallic powder content (component B) defined by the% by weight! mentioned in the plastic mixture, the tensile-to-rupture deformation of component A is greater by a factor of 1.1 to 100, preferably by a factor of 1.2 to 50, particularly preferably by a factor of 1.3 to 10, than the deformation by tensile to rupture of the plastic mixture comprising components A, B, and, if present, C and D, and at the same time the tensile strength of component A is greater by a factor of 0.5 a 4, preferably by a factor of 1 to 3, particularly preferably by a factor of 1 to 2.5, than the tensile strength of the plastic mixture comprising components A, if present, C and D (a factor less than 1 meaning that the tensile strength of component A is less than the tensile strength of the plastic mixture comprising components A, B, and, if present, C and D) these values of tensile strength and strain values Breakdown traction and all others mentioned in this application are determined in the tensile test at ISO 527-2: £ 19 in test specimens of type 1 BA (Annex A of the standard mentioned: "small test specimens"). The total thickness of the inventive sheets or sheets is generally from 10 pm to 5 mm, preferably from 10 pm to 3 mm, particularly preferably from 20 pm to 1.5 mm, in particular from 100 pm to 300 pm. The inventive sheets or sheets are produced from a plastic mix comprising the following components.
Component A In principle, any of the thermoplastic polymers is suitable as component A, in particular those whose tensile-to-rupture deformation is in the range of 10% to 100? | ½, preferably in the range of 20 to 700, in particular preferably on the scale of 50 to 500. Examples of a suitable component A are polyethylene, polypropylene, polyvinyl chloride, polystyrene (impact resistant or non-impact modified), ABS (acrylonitrile-butadiene-styrene), ASA (acrylonitrile- styrene-acrylate), MABS (transparent ABS, comprising methacrylate units), styrene-butadiene block copolymer (for example, Styroflex® or Styrolux® from BASF Aktiengesellschaft, K-Resin ™ from CPC), polyamides, poly-olene terephthalate (PET), polyethylene glycol terephthalate (PETG) , polybutylene terephthalate (PBT), aliphatic-aromatic copolyesters (for example, Ecoflex® from BASF Aktiengesellschaft), polycarbonate (for example, Makrolon® from Bayer AG), polymethyl methacrylate (PMMA), poly (ter) sulfones, and polyphenylene (PPO). As component A, preference is given to using one or more polymers selected from the group consisting of impact-modified vinyl aromatic copolymers, thermoplastic styrene-based plastic elastomers, polyolefins, aliphatic-aromatic copolyesters, polycarbonate copolyesters, and of thermoplastic polyurethanes. Polyamides can also be used as the preferred component A.
Copo modified impact vinyl aromatic monomers: Preferred impact modified vinyl aromatic copolymers are modified impact copolymers composed of vinyl aromatic monomers and vinyl cyanide (SAN). The modified modified impact SANs preferably comprise polymers of ASA and / or polymers of ABS, or polymers of (meth) acrylate-acrylonitrile-butadiene-styrene ("MABS", transparent ABS), or mixtures of SAN, ABS, ASA and MABS with others thermoplastics, for example, with polycarbonate, with polyamide, with polyethylene terephthalate, with polybutylene terephthalate, with PVC, or with polyolefins. The strain-to-rupture values of the ASA and ABS that can be used as components A are generally from 10% to 300%, preferably from 15 to 250%, particularly preferably from 20% to 200%. ASA polymers are generally impact modified SAN polymers comprising elastomeric graft copolymers of vinyl aromatic compounds, in particular styrene, and vinyl cyanides, in particular acrylonitrile, in polyalkyl acrylate rubbers in a composite copolymer matrix, in particular, of styrene and / or α-methylstyrene and acrylonitrile. In a preferred embodiment wherein the sheets or sheets comprise ASA polymers, the elastomeric graft copolymer A de) component A is composed of 1 to 99% by weight, preferably 55 to 80% by weight, in particular 55 to 65% by weight, of a graft base of particle A1 with a glass transition temperature below ° C, a2 from 1 to 99% by weight, preferably from 20 to 45% by weight, in particular from 35 to 45% by weight, of a graft A2 composed of the following monomers, based on A2, a21 of 40 to 100% by weight , preferably from 65 to 85% by weight, of units of styrene, of a substituted styrene, or of a (meth) acrylate, or a mixture of these, in particular of styrene and / or α-methylstyrene, as component A21, and 22 to 60% by weight, preferably 15 to 35% by weight, of acrylonitrile units or methacrylonitrile, in particular acrylonitrile, as component A22.
The graft A2 here is composed of at least one graft framework The component A1 here is composed of the following monomers a11 from 80 to 99.99% by weight, preferably from 95 to 99.9% by weight, of at least one C1-C8 alkyl acrylate, preferably n-butyl acrylate and / or ethylhexyl acrylate, as component A11, a12 'from 0.01 to 20 % by weight, preferably from 0.1 to 5.0% by weight, and at least one polyfunctional crosslinking monomer, preferably diallyl phthalate and / or DCPA, as component A12.
According to one embodiment of the invention, the average particle size of the AR component is 50 to 1000 nm, with monomodal distribution. In another embodiment of the invention, the particular size distribution of the AR component is bimodal, from 60 to 90% by weight having an average particle size of 50 to 200 nm, and from 10 to 40% by weight having an average particle size of 50 to 400 nm, based on the total weight of the AR component. The average particle size and the particle size distribution given are the determined sizes of the cumulative weight distribution. The average particle sizes according to the invention are in all cases the average weight of the particle sizes. The determination of these is based on the method of W. Scholtan and H. Lange, Kolloid-Z. und Z.-Polymere 250 (1972), pp. 782-796, using an analytical ultracentrifuge. The ultracentrifuge measurement gives the cumulative weight distribution of the particle diameter of a specimen. From this, it is possible to deduce what percentage by weight of the particles has a diameter identical to or less than a particular size. The average particle diameter, which is also called the d50 of the cumulative weight distribution, is defined here as that particle diameter at which 50% by weight of the particles have a smaller diameter than that corresponding to d50. Likewise, 50% by weight of the particles then have a diameter greater than d50. To describe the width of the particle size distribution of the rubber particles i, the values d10 and d90 given by the cumulative weight distribution are used next to the value d50 (particle diameter promejdio). The d10 and d90 of the cumulative weight distribution are defined similarly to d50 with the difference that they are based on, respectively, 10 and 90% by weight of the particles. they can comprise, as comonomers, up to 30% by weight of hard polymer-forming monomers, such as vinyl acetate, (meth) acrylonitrile, styrene, substituted styrene, methyl methacrylate, vinyl ether. Acrylate rubbers also comprise from 0.01 to 20% by weight, preferably from 0.1 to 5% by weight, of polyfunctional, crosslinking monomers (crosslinking monomers). Examples of these are monomers comprising two or more double bonds capable of copolymerization, preferably not 1,3-conjugates. Examples of suitable crosslinking monomers are divinylbenzene, diallyl maleate, diallyl fumarate, diallyl phthalate, phthalate diethyl, triallyl cyanurate, triallyl isocyanurate, tricyclodecenyl acrylate, dihydrodicyclopentadienyl acrylate, triallyl phosphate, allyl acrylate, allyl methacrylate. Dicyclopentadienyl acrylate (DCPA) has proven to be a of particularly suitable interlacing (cf. DE-C 12 AR component is a graft copolymer. These graft copolymers AR have an average particle size d50 of 50 to 1000 nm, preferably 50 to 800 nm, and particularly preferably 50 to 600 nm. These particle sizes can be achieved if the graft base A1 used has a particle size of 50 to 800 nm, preferably 50 to 500 nm, and particularly preferably 50 to 250 nm. The graft copolymer A generally has one or more stages, that is, it is a polymer composed of a core and one or more frames. The polymer is composed of a first stage (graft core) A1 and one or - preferably - more stages A2 (grafts) grafted in this first stage and known as graft stages or graft frames.
Simple grafting or grafting in the form of multiple passes can be used to apply one or more graft frames to the rubber particles, and each of these graft frames can have a different composition. In addition to the graft monomers, it is also possible to include polyfunctional crosslinking monomers or monomers comprising reactive groups in the grafting process (see, for example, EP-A 230 282, DE-B 36 01 419, EP-A 269861). . In a preferred embodiment, the AR component is composed of graft copolymer urji developed in two or more stages, grafting stages usually being prepared from monomers resin formers and having a glass transition temperature Tg above 30 ° C, preferably above 50 ° C. The structure having two or more stages serves, among other things, to make the rubber particles AR (partially) compatible with the thermoplastic matrix. An example of a preparation method for graft copolymers AR is grafted from at least one of the monomers A2 listed below into at least one of the graft bases or graft core materials A2 listed above. In one embodiment of the invention, the graft base A1 is composed of from 15 to 99% by weight of acrylate rubber, from 0.1 to 5% by weight of crosslinker, and from 0 to 49.9% by weight of one of the other monomers or rubber mentioned. Suitable monomers for forming the graft A2 are styrene, α-methylstyrene, (meth) acrylates, acrylonitrile, and methacrylonitrile, in particular acrylonitrile. In one embodiment of the invention, interlaced acrylate polymers with a glass transition temperature of less than 0 ° C serve as the graft base A1. The interlaced acrylate polymers will preferably have a glass transition temperature of less than -20 ° C, in particular less than -30 ° C. | In a preferred embodiment, the graft A2 is composed of at least one graft framework, and the outer graft framework thereof has a glass transition temperature of more than 30 ° C, while a polymer formed from the graft monomers. A2 it would have a glass transition temperature of more than 80 ° C. The suitable preparation processes for AR graft copolymers are emulsion polymerization, solution, volume, or suspeinsión. The AR graft copolymers are preferably prepared by free radical emulsion polymerization in the presence of component A1 latices at 20 ° C to 90 ° C, using water soluble or oil soluble initiators, such as peroxodisulfate or benzoyl peroxide, or with the help of reidox initiators. The redox initiators are also suitable for polymerization below 20 ° C. Suitable emulsion polymerization processes are described in DE-A 2826925, 31 49 358 and DE-C 1260 135. The graft frameworks preferably accumulate in the emulsion polymerization described in DE-A 32 27 555, 34 14 118. The defined fit of the particle sizes of the; invention of 50 to 1000 nm occurs preferably by the processes described in DE-C 12 60 135 and DE-A 28 26 925, and Applied Polynlier Science, volume 9 (1965), p. 2929. The use of polymers with Different particle sizes are known from DE-A 28 26 925 and US-A 5 196480, for example. The process described in DE-C 12 60 135 begins by preparing in a known manner, at 20 ° C, the acrylate (s) used in an entanglement monomer with the other comonomers, in aqueous emulsion. The usual emulsifiers can be used, such as alkali metal alkyl- or alkylaryl sulphonates, alkyl sulfates, fatty acid sulfonates, salts of higher fatty acids having from 10 to 30 carbon atoms or resin soaps. It is preferable to use the sodium salts of alkylsulfonates or fatty acids having from 10 to 18 carbon atoms. In one embodiment, the amounts used of the emulsifiers are from 0.5 to 5% by weight, in particular from 1 to 2% by weight, based on the monomers used in preparing the graft base A1. In general, operations with a water to monomer ratio of 2: 1 to 0.7: 1 by weight are carried out. The polymerization initiators used are in particular the commonly used persulfates, such as potassium persulfate. However, it is also possible to use redox systems. The generally used amounts of the initiators are from 0.1 to 1% by weight, based on the monomers used in preparing the graft base A1. Other polymerization aids which can be used during the polymerization are the usual regulating substances which can adjust a preferred pH from 6 to 9, examples being sodium bicarbonate and sodium pyrophosphate, and also from 0 to 3% by weight of a regulator of molecular weight, such as mercaptans, terpinoles or dimeric a-methylstyrene. The precise polymerization conditions, in particular the nature, feed parameters, amount of the emulsifier, are determined individually within the ranges given above in such a way that the resulting lattice of the interlaced acrylate polymer has a d50. on the scale of about 50 to 800 nm, preferably 50 to 500 nm, particularly preferably in the range of 80 to 250 nm. The particle size distribution of the latex herein should preferably be narrow. In one embodiment of the invention, in order to prepare the graft polymer AR, in a next step, in the presence of the resulting latex of the interlaced acrylate polymer, a monomer mixture composed of styrene and acrylonitrile is polymerized, and in one embodiment of the invention here the weight ratio of styrene to acrylonitrile in the monomer mixture should be in the range of 100: 0 to 40:60, and preferably 65:35 to 85:15. This graft copolymerization of styrene and acrylonitrile in the crosslinked polyacrylate polymer that serves as a grafting base is once again advantageously carried out in aqueous emulsion under the usual conditions described above. Graft copolymerization can be useful in the system used for emulsion polymerization to prepare the graft base A1, where more emulsifier and initiator can be added, if necessary. The mixture of monomers of styrene and acrylonitrile that must be grafted in one embodiment of the invention can be added to the reaction mixture at the same time, in portions in more than one step, or preferably in a continuous form during the course of the polymerization. The graft copolymerization of the mixture of styrene and acrylonitrile in the presence of the crosslinking acrylate polymer is carried out in such a manner so as to obtain in the graft copolymer AR a grafting degree from 1 to 99% by weight, preferably from 20 to 45% by weight, in particular from 35 to 45% by weight, based on the total weight of the AR component. Since grafting performance in graft copolymerization is not 100%, the amount of the mixture of styrene and acrylonitrile monomers to be used in the graft copolymerization is somehow greater than that which corresponds to the desired degree of grafting. The control of grafting performance in the graft copolymerization, and thus the degree of grafting of the finished graft copolymer AR, is a subject with which one skilled in the art is familiar. It can be achieved, for example, via the measurement rate of the monomers or via the addition of regulators (Chauvel, Daniel, ACS Polymer Preprints 15 (1974), pp. 329 ff.). The graft copolymerization by emulsion generally gives about 5 to 15% by weight, based on the graft copolymer, free ungrafted styrene-acrylonitrile copolymer. The proportion of the graft copolymer A in the polymerization product obtained in the graft copolymerization is determined by the method given above. The preparation of the AR copolymers by the emulsion process also gives, apart from the advantages of the technical process mentioned above, the possibility of reproducible changes in particle sizes, for example, by agglomerating the particles at least to a certain degree to give more particles. big. This implies that polymers with different particle sizes may also be present in the AR graft copolymers. The AR component The graft base compound and graft framework (s) can in particular ideally be adapted to the respective application, in particular with respect to particle size. The graft copolymers AR generally comprise from 1 to 99% by weight, preferably from 55 to 80% by weight, and particularly preferably from 55 to 65% by weight, from graft base A1 and from 1 to 99% by weight. weight, preferably from 20 to 45% by weight, in particular preferably from 35 to 45% by weight, of the graft A2, based in each case on the entire graft copolymer. The ABS polymers are generally understood to be modified impact SAN polymers wherein the diene polymers in particular poly-1,3-butadiene are present in a copolymer matrix, in particular styrene and / or α-methylstyrene, and acrylonitrile. In a preferred embodiment, wherein the sheets or sheets comprise ABS polymers, the elastomeric graft copolymer AR of component A is composed of a1 'of 10 to 90% by weight of at least one jelastomeric graft base with a vitreous transition temperature below i of 0 ° C, obtainable by polymerizing, based on A1', a11 'ele 60 to 100% by weight, preferably from 70 to 100% by weight, at least one conjugated diene and / or C1-C10 alkyl acrylate, in particular butadiene, isoprene, n-butyl acrylate and / or 2-ethylhexyl acrylate, a12 'from 0 to 30% by weight, preferably from 0 to 25% by weight, of at least one other monoethylenically unsaturated monomer, in particular styrene, α-methylstyrene, n-butyl acrylate, methyl methacrylate, or mixtures thereof, and among the latter named in particular copolymers of butadiene-styrene and copolymers of n-butyl acrylate-styrene, and a13 'of 0 to 10% by weight, preferably 0 to 6% by weight, of at least one interlacing monomer, preferably divinylbenzene, diallyl maleate, allyl (meth) acrylate, dihydrodicyclopentadienyl acrylate, divinyl esters of dicarboxylic acids, such as succinic and adipic acid, and diallyl and divinyl ethers of bifunctional alcohols, such as ethylene glycol or butane-1, 4- diol, a2 'from 10 to 60% by weight, preferably from 15 to 55% by weight, of a graft A2', composed of, based on A2 ', a21' of 50 to 100% by weight, preferably 55 to 90% by weight of at least one vinyl aromatic monomer, preferably styrene and / or α-methylstyrene, a22 'from 5 to 35% by weight, preferably from 10 to 30% by weight, of acrylonitrile and / or methacrylonitrile, preferably acrylonitrile, a23' from 0 to 50% by weight, preferably from 0 to 50% by weight, 30% by weight of at least one other monoethylenically unsaturated monomer, preferably methyl methacrylate and / or n-butyl acrylate.
In another preferred embodiment where the sheets or sheets comprise ABS, the AR component is a graft rubber with bimodal particle size distribution, composed of, based on A a1"from 40 to 90% by weight, preferably from 45 to 85% by weight, of an elastomeric particle graft base A1", obtainable by polymerizing, based on A1", a11 from 70 to 100% by weight, preferably from 75 to 100% by weight, of at least one conjugated diene, in particular butadiene and / or isoprene, a12 'from 0 to 30% by weight, preferably from 0 to 25% by weight, of at least one other monoethylenically unsaturated monomer , in particular styrene, α-methylstyrene, n-butyl acrylate, or mixtures thereof, a 2"of from 10 to 60% by weight, preferably from 15 to 55% by weight, of a graft A2" composed of, based on A2", a21" of 65 to 95% by weight, preferably 70 to 90% by weight, of at least one vinyl aromatic monomer, preferably styrene, 22% by weight of 5 to 35% by weight, preferably 10% by weight; at 30% by weight, of acrylonitrile, at 23"from 0 to 30% by weight, preferably from 0 to 20% by weight, of at least one other monoethylenically unsaturated monomer, preferably methyl methacrylate and n-butyl Acrylate In a preferred embodiment, wherein the sheets or sheets comprise ASA polymers as component A, the hard AM matrix of component A is at least one hard copolymer comprising units derived from vinyl aromatic monomers, and comprising, based on the total weight of units deriving from vinyl aromatic monomers, from 0 to 100% by weight, preferably from 40 to 100% by weight, particularly preferably from 60 to 100% by weight, of units which are derived from α-methylstyrene, and which comprise from 0 to 100% by weight, preferably from 0 to 60% by weight, in particular preferably from 0 to 40% by weight, of units derived from styrene, composed of , based on A aM1 | from 40 to 100% by weight, preferably from 60 to 85% by weight, | of vinyl aromatic units, as component AM1, aM2 Lasta 60% by weight, preferably from 15 to 40% by weight, of acrylonitrile units or methacrylonitrile, in particular acrylonitrile, as component AM2.
In a preferred embodiment, wherein the sheets or sheets comprise ABS polymers as component A, the hard matrix AM of component A is at least one hard copolymer comprising units deriving from vinyl aromatic monomers, and comprising, based on the total weight of units deriving from vinyl aromatic monomers, from 0 to 100% by weight, preferably from 40 to 100% by weight, in particular preferably from 60 to 100% by weight, of units deriving from α-methylstyrene, and from 0 to 10% by weight, preferably from 0 to 60% by weight, particularly preferably from 0 to 40% by weight, of units derived of styrene, composed of, based on AM, at 1% from 50 to 100% by weight, preferably from 55 to 90% by weight, of vinyl aromatic monomers, to M2 'from 0 to 50% by weight of acrylonitrile or methacrylonitrile or mixtures thereof, aM3' of 0 to 50% by weight of at least one other monoethylenically unsaturated monomer, such as methyl methacrylate and N-alkyl- or N-arylmaleimides, for example, N-phenylmaleimide.
In another preferred embodiment, wherein the sheets or sheets comprise ABS as component A, the AM component is at least one hard copolymer with a viscosity number VN (determined to DIN 53726 at 25 ° C in 0.5% strength by weight solution in dimethylformamide) from 50 to 120 ml / g, comprising units deriving from vinyl aromatic monomers, and comprising, based on the total weight of units derived from vinyl aromatic monorjones, from 0 to 100% by weight, preferably from 40 to 100 % by weight, in particular preferably from 60 to 100% by weight, of units deriving from α-methylstyrene, and from 0 to 100% by weight, preferably from 0 to 60% by weight, particularly preferably from 0 to 60% by weight, 40% by weight, of units derived from styrene, composed of, based on A 3 1"of 69 to 81% by weight, preferably of 70 to 78% by weight, of vinyl aromatic monomers, 3" of 19 to 31% by weight, preferably 22 to 30% by weight, of acrylonitrile, 3 3 ' from 0 to 30% by weight, preferably from 0 to 28% by weight, of at least one other monoethylenically unsaturated monomer, such as methyl methacrylate or N-alkyl- or N-arylmaleimides, for example, N-phenylmaleimide.
In one embodiment, the ABS polymers comprise, together with each other, AM components whose VN viscosity numbers differ by at least five units (ml / g) and / or whose acrylonitrile contents differ by five units (% by weight). weight). Finally, together with the component AM, the other embodiments can also make copolymers present of a-methylstyrene with maleic anhydride or maleimides, of α-methylstyrene with maleimides and methyl methacrylate or acryloyl ityl, or of α-methylstyrene with maleimides, methyl methacrylate and Acrylonitrile In these ABS polymers, graft polymers AR 'are preferably obtained by means of emulsion polymerization. The mixing of the graft polymers AR 'with AM' components, and, if appropriate, other additives usually occurs in a mixing apparatus, producing a polymer mixture substantially molten. It is advantageous for the molten polymer mixture to cool very quickly. In other aspects, the process of preparation and general modalities, and particular embodiments, of the aforementioned ABS polymers are described in detail in the German patent application DE-A 19728629, expressly incorporated by reference herein. The aforementioned ABS polymers can comprise other conventional auxiliaries and fillers. Examples of these substances are lubricants or mold release agents, waxes, pigments, dyes, flame retardants, antioxidants, light stabilizers, or antistatic agents. According to a preferred embodiment of the invention, the viscosity number of the hard matrices AM and, respectively, AM of the component A is from 50 to 90, preferably from 60 to 80. The hard matrices AM and, respectively, AM of the component A are preferably amorphous polymers. According to one embodiment of the invention, mixtures of a copolymer of styrene with acrylonitrile and of a copolymer composed of a-methylstyrene with acrylonitrile as hard matrices and-respectively, AM of component A are used. The content of acrylonitrile in these Copolymers of the hard matrices is from 0 to 60% by weight, preferably from 15 to 40% by weight, based on the total weight of the hard matrix. The hard matrices A and, respectively, A of component A also include the non-grafted a-methylstyrene-acrylonitrile free copolymers produced during the Graft copolymerization reaction to prepare the component AR and respectively, AR. Depending on the conditions selected during the graft copolymerization reaction for preparing the graft copolymers AR and, respectively, AR, it may be possible for a sufficient proportion of hard matrix to be formed before the graft copolymerization reaction has been completed. However, it will generally be necessary for the products obtained during the graft copolymer reaction to be mixed with additional hard matrix prepared separately. Additional, hard matrices prepared separately A and, respectively, A of component A can be obtained by conventional processes. For example, in accordance with one embodiment of the invention, the copolymerization reaction of styrene and / or α-methylstyrene with acrylonitrile can be carried out in bulk, solution, suspension, or aqueous emulsion. The viscosity number of the component AM and, respectively, AM is preferably from 40 to 100, preferably from 50 to 90, in particular from 60 to 80. The viscosity number here is determined to DIN 53 726, dissolving 0.5 g of material in 100 ml of dimetijlformamide. The mixture of the components AR (and, respectively, AR ') and AM (, respectively, AM') can occur in any desired manner by any of the known methods. If, by way of example, these components have been prepared via polymerization by emulsion, it is possible to mix the resultant polymer dispersions with each other, then to precipitate the polymers together and form the polymer mixture. However, these components are preferably mixed by winding or kneading or extruding the components together, the components having been isolated, if necessary, in advance from the aqueous dispersion or solution obtained during the polymerization reaction. The graft copolymerization products obtained in aqueous dispersion can also only be separated from the water and mixed in the wet crumb form with the hard matrix, where after the complete drying of the graft copolymers occurs during the mixing process.
Styrene-based thermoplastic elastomers: Preferred styrene-based thermoplastic elastomers (S-TPE) are those whose tensile-to-rupture deformation is more than 300%, particularly preferably more than 500%, in particular more than 500% to 600 %. The mixed S-TPE in particular preferably comprises a styrene-butadiene block copolymer in star-shaped polystyrene having external polystyrene S blocks and, located therebetween, styrene-butadiene copolymer blocks having random styrene / butadiene distribution (S / B) Aieator, or having a styrene (S / B) gradient conïcity (for example, Styroflex® or Styrolux® from BASF Aktiengesellschaft, K-Resin T CPC) ¡. The total butadiene content is preferably in the scale from 15 to 50% by weight, particularly preferably in the range from 25 to 40% by weight, and the total styrene content is preferably correspondingly in the range from 50 to 85% by weight, particularly preferably in the scale of 60 to 75% by weight. The styrene-butadiene block (S / B) preferably consists of 30 to 75% by weight of styrene and 25 to 70% by weight of butadiene. A block of (S / B) in particular preferably has a butadiene content of 35 to 70% by weight of and a styrene content of 30 to 65% by weight. The content of the styrene blocks S is preferably in the range of 5 to 40% by weight, in particular in the range of 25 to 35% by weight, based on the whole block copolymer. The content of the S / B copolymer blocks is preferably in the range of 60 to 95% by weight, in particular in the range of 65 to 75% by weight. Particular preference is given to linear styrene-butadiene block copolymers of the general structure S- (S / B) -S having, located between the two blocks S, one or more blocks (S / B) with distribution of random styrene / butadiene. Block copolymers of this type are obtainable via anionic pollination in a non-polar solvent with the addition of a I polar cosolvent or a potassium salt, as described by example as in WO 95/35335 or WO 97/40079. i | The content of vinyl is the relative content of 1, 2-ligatures of the diene units, based on the totality of ligatures 1,2- and 1. -cis and 1,4-trans. The content of 1,2-vinyl in the block of copol | Styrene / butadiene (S / B) number is preferably below 20 %%, particularly in the range of 10 to 18%, particularly preferably in the range of 12 to 16%.
Epine polio: The polyolefins that can be used as components A usually have tensile strain to rupture values of 10% to 630%, preferably 15% to 500%, particularly preferably 20% to 400%. Examples of suitable components A are semicrystalline polyolefins, such as homo- or copolymers of ethylene, propylene, 1-butene, 1-pentene, 1-hexene, or 4-methyl-1-pentene, or otherwise ethylene-vinyl copolymers acetate, vinyl alcohol, ethyl ether, butyl acrylate, or methacrylate. The component A used preferably comprises a high density polyethylene (HDPE), low density polyethylene (LDPE), low density polyethylene line] (LLDPE), polypropylene (PP), ethylene-vinyl acetate copolymer (EVA), or ethylene-acrylic copolymer. A particularly preferred component A is polypropylene.
Polycarbonates: Polycarbonates that can be used as components A by l > general have tensile-to-rupture deformation values of % to 300%, preferably 30% to 250%, particularly preferably 40% to 200%. The molar mass of polycarbonates suitable as component A (average weight Mw, determined by means of gas chromatography in tetrahydrofuran against polystyrene standards) is preferably in the range of 10,000 to 60,000 g / mol. By way of example, they are obtainable by the processes of DE-B 1 300 266 via interfacial poly-condensation or in accordance with the process of DE-A 1 495 730 via the reaction of diphenyl carbonate with biphenols. The preferred biphenol is 2,2-di (4-hydroxy-phenyl) propane, usually - and also hereinafter - biphenol A. Instead of biphenol A, it is also possible to use other aromatic dihydroxy compounds, in particular 2 , 2-di (4-hydroxyphenyl) pentane, 2,6-d hydroxynaphthalene, 4,4'-d-hydroxyphenyl sulphan, 4,4'-dihydroxy-phenyl ether, 4,4'-dihydroxydiphenyl sulfyl, 4,4 ' -dihydroxydiphenylmethane, 1,1-di (4-ihdro: < ifenil) ethane, 4,4-dihydroxydiphenyl, or dihydroxydiphenylcycloalkanes, preferably dihydroxydiphenylcyclohexanes, or dihydroxy-cyclopentanes, in particular 1,1-bi (4-hydroxyphenyl) -3,3,5-trimethylcyclo-hexaho, or else a mixture of the dihydroxy compounds before! mentioned. Particularly preferred polycarbonates are those based on biphenol A or biphenol A together with up to 80 mol% of the aforementioned aromatic dihydroxy compounds. The polycarbonates with the particularly good fit as component A are those that comprise units that they are derived from resorcinol esters or alkylresorcinol esters, for example, those described in WO 00/61664, WO 00/15718 or WO 00/26274. These polycarbonates are manufactured by way of example by the General Electric Company, the brand being SollX®. It is also possible to use copolycarbonates according to US Pat. No. 3,737,409, and copolycarbonates based on biphenol A and di (3,5-dimethyldihydroxyphenyl) sulphite are of particular interest here, and show high heat resistance. It is also possible to use different polycarbonate blends. According to the invention, the average molar masses (weight Mw weight, determined by means of chromatography chromatography in tetrahydrofuran against polystyrene standards) of the polycarbonates are in the range of 10000 to 64000 g / mol. Preferably they are in the range of 15,000 to 63,000 g / mol, in particular in the range of 15,000 to 60000 g / mol. This means that the relative solution viscosities of the polycarbonates are in the range of 1.1 to 1.3, measured in 0.5% strength by weight solution in dichloromethane at 25 ° C, preferably from 1.15 to 1.33. The difference between the relative solution viscosities of the polycarbonates used preferably is not more than 0.05, in particular not more than 0.04. The way in which polycarbonates are used can be that of regrind or otherwise that of pills.
Thermoplastic polyurethane: Any aromatic or aliphatic polyurethane is generally suitable as component A, and amorphous aliphatic thermoplastic polyurethanes that are transparent have the preferred preferred. The aliphatic thermoplastic polyurethanes and their preparation are known to the person skilled in the art, for example, EP-B1 567 883 or DE-A 10321081, and are commercially available Tibies, for example, with registered trademarks Texin® and Desmopan® of Bayer Aktiengesellschaft. The Shore D hardness of preferred aliphatic thermoplastic polyurethanes is from 45 to 70, and their tensile-to-rupture deformation is from 30% to 800%, preferably from 50% to 600%, particularly preferably from 80% to 500%. The particularly preferred components A are styrene-based thermoplastic elastomers.
Component B (Any of the metallic powders whose particle diameter is promising (determined via laser diffraction measurement in Microtrac X100 equipment) is 0.01 to 100 μ? T ?, preferably 0.1 to 50 μ? T ?, in particular preferably 1 at 10 μ? t ?, is suitable as component B, as long as the normal electrode potential in acid solution of the metal is more negative than that of silver n, Ni, Cu, Sn, Co, Mn, Fe, Mg, Pb, Cr and Bi are examples of suitable metals, the way in which metals are deposited here it can be that of the metal used or - if several metals are used - that of alloys of the mentioned metals with each other or with other metals. Examples of suitable alloys are CuZn, CuSn, CuNi, SnPb, SnBi, SNCF, NiP, ENFE, ZnNi, ZnCo, and ZnMn. Hiorro powder and copper powder, in particular iron powder, are preferred metallic powders that can be used. The metal powder particles can in principle have any desired shape and for example are acrylic, lamellar, or spherical, giving preference to spherical and lamellar metal particles. Metal particles of this type are readily available commercial products, or can be prepared easily by means of known processes, for example by electrolytic arrangement or chemical reduction of solutions of the metal salts, or by reduction of an oxidic powder, for example by hydrogen medium, or via sprinkling of a molten metal, in particular in cooling fluids, such as gases or water. It is particularly preferable to use metal powders with spherical particles, in particular carbonyl iron powders. The preparation of carbonyl iron powders by thermal decomposition of pentacarbonyl iron is known and described by way of example in Ullmann's Encyclopedia of Industrial Chemistry, 5th edition, volume A14, page 599. By way of example, pentacarbonyl iron high temperatures and high pressures can be decomposed in a heat-set decoking system comprising a pipe composed of a heat resistant material, such as quartz glass or V2A steel in a preferably vertical position, surrounded by heating equipment, for example composed of heating tapes, heating cables, or a heating jacket through which hot fluid passes. The average particle diameters of carbondyl iron powders passing through deposition can be controlled within a wide scale via the process parameters and reaction behavior during the decomposition process and are generally from 0.01 to 100 μP ?, preferably from 0.1 to 50 μ? t ?, in particular preferably from 1 to 10 pm.
Component C In principle, any of the dispersing agents described in the prior art and known to the person skilled in the art for use in plastic mixtures is suitable as component C. The preferred dispersing agents are surfactants or surfactant mixtures. , such as ammonium, cationic, amphoteric or nonionic surfactants. Cationic and anionic surfactants are described by way of example in "Encyclopedia of Polymer Science and Technology", J. Wiley & Sons (1966), volume 5, pp. 816 to 818, and in "Emujlsion Polymerization and Emulsion Polymers," editors P. Novell and M. l-Asser, Verlag Wiley & Sons (1997), pp. 224-226. Examples of anionic surfactants are salts of alkali metal of organic carboxylic acids having cydene lengths of 8 to 30 carbon atoms, preferably 12 to 18 carbon atoms. Usually these are qualified soaps. The salts usually used are the sodium, potassium or ammonium salts. Others; Anionic surfactants that can be used are alkyl sulphates and alkyl- or alkylarylsulfonates having from 8 to 30 carbon atoms, preferably from 12 to 18 carbon atoms. Particularly suitable compounds are alkali metal dodecyl sulfates, for example, sodium dodecyl sulfate or potassium dodecyl sulfate, and alkali metal salts of C12-C 6 paraffin sulphonic acids. Other suitable compounds are sodium dodecylbenzenesulfonate and sodium dioctyl sulfosuccinate. Examples of suitable cationic surfactants are salts of amines or diamines, quaternary ammonium salts, for example, hexadecyltrimethylammonium bromide, and also salts of long-chain substituted cyclic amines, such as pyridine, morpholine, piperidine. In particular, quaternary ammonium salts of trialkylamines are used, for example, hexadecyltrimethylammonium bromide. The alkyl radicals here preferably have from 1 to 20 carbon atoms. According to the invention, nonionic surfactants can be used in particular as component C. Nonionic surfactants are described by way of example on CD Ropp Chemie Lexikon - version 1.0, Stuttgart / New York: Georg Thieme Verlag 1995, key "Nichtionische Tenside" [agents nonionic surfactants]. Examples of suitable nonionic surfactants are substances based on polyethylene oxide or polypropylene oxide, such as Pluronic® or Tetronic® from BASF Aktiengesellschaft. Polyalkylene glycols suitable as nonionic surfactants generally have a molar mass Mn in the range from 10001 to 15000 g / mol, preferably from 2000 to 13000 g / mol, particularly preferably from 4000 to 11000 g / mol. The preferred nonionic surfactants are polyethylene glycols. | The polyalkylene glycols are known per se or can be prepared by processes known per se, for example, by anionic polymerization using alkaline metal hydroxide catalysts, such as sodium hydroxide or potassium hydroxide, or use of metal hydroxide catalysts alkali, such as sodium methoxide, sodium ethoxide, potassium ethoxide or potassium isopropoxide, and with the addition of at least one initiator molecule comprising from 2 to 8 reactive hydrogen atoms, preferably from 2 to 6 reactive hydrogen atoms , or by cationic polymerization using Lewis acid catalysts, such as antimony pentachloride, boron fluoride etherate, or blanching earth, the starting materials being one or more alkylene oxides having 2 to 4 carbon atoms in the radical of alchemy Examples of suitable alkylene oxides are tetrahydrofuran, 1,2- or 2,3-butylene oxide, styrene oxide, and preferably ethylene oxide and / or 1,2-propylene oxide. The alkylene oxides can be used individually, alternating one after the other, or as a mixture. Examples of initiator molecules that can be used are: water, organic dicarboxylic acids, such as succinic acid, adipic acid, italic acid, or terephthalic acid, N, N-, or?,? '- dialkyl-substituted or unsubstituted, aliphatic diamines or aromatic, having from 1 to 4 carbon atoms in the alkyl radical, such as ethylenediamine, diethyl diamine, triethylene diamine, 1,3-propylene diamine, 1,3- or 1,4-butylene diamine, or 1,2-, 1 , 3-, 1,4- 1,5- or 1,6-hexamethylenediamine optionally mono- or dialkyl substituted. Other initiator molecules that can be used are: alkanolamines, for example, ethanolamine, N-methyl or N-ethylenolamine, dialkanolamines, for example, diethanolamine, and N-methyl? and N-ethyldiethanolamine, and trailcanolamines, for example, triethanolamine, and ammonia. It is preferable to use polyhydric alcohols, in particular di- or trihydric alcohols or alcohols with functionality greater than three, for example, ethanediol, 1,2-propanediol, 1,3-propanediol, diethylene glycol, dipropylene glycol, 1,4-butanediol, 1,6-hexanediol, glycerol, trimethylolpropane, pentaerythritol, sucrose, and sorbitol. Suitable C-components are polyalkylene glycols, such as mono-, di-, tri- or polyesters of the mentioned polyalkylene glycols which can be prepared by reacting the terminal OH groups of the polyalkylene glycols mentioned with organic acids, preferably adipic acid or terephthalic acid, in a manner known per se. Polyethylene glycol adipate or polyethylene glycol terephthalate is preferred as component C. Particularly suitable nonionic surfactants are substances prepared by alkoxylating compounds having active hydrogen atoms, for example, adducts of ethylene oxide in fatty alcohols, oxo alcohols, or alkylphenols . It is preferable to use ethylene oxide or 1,2-propylene oxide for the alkoxylation reaction. Other preferred nonionic surfactants are alkoxylated or non-alkoxylated sugar esters or sugar ethers. The sugar ethers are alkyl glycosides obtained by reacting fatty alcohols with sugars, and sugar esters are obtained by reacting sugars with fatty acids. The sugars, fatty alcohols, and fatty acids necessary to prepare the mentioned substances are known to those skilled in the art. Suitable sugars are described by way of example in Beber / Walter, Lehrbuch der organischen Chemie, S. Hirzel Verlag Stuttgart, 19a. edition, 1981, pp. 392 to 425. Particularly suitable sugars are D-sorbitol and the sorbitans obtained by dehydrating D-sorbitol. Suitable fatty acids are branched or unbranched saturated carboxylic acids or individually or multiply unsaturated having from 6 to 26 carbon atoms, preferably from 8 I to 22 carbon atoms, particularly preferably from 10 to 20 carbon atoms, for example as mentioned in CD Ropp Cherrie Lexikon - version 1.0, Stuttgart / New York: Georg Thieme Verlag 1995, key "Fettsáuren" [fatty acids]. Preferred fatty acids are tauric acid, palmitic acid, stearic acid, and oleic acid. The carbon skeleton of suitable fatty alcohols is identical with that of the compounds described as suitable fatty acids. The sugar ethers, sugar esters, and the processes for their preparation are known to the person skilled in the art. The preferred sugar ethers are prepared by known processes, by reacting the sugars mentioned with the aforementioned fatty alcohols. Preferred sugar esters are prepared by known processes, by reacting the sugars mentioned with the aforementioned fatty acids. The preferred sugar esters are the mono-, di- and tri-esters of the sorbitans with fatty acids, of alkoxylated sugars and sugar esters obtained by alkoxylating the sugar ethers and sugar esters mentioned. Preferred alkoxylation agents are ethylene oxide and 1,2-propylene oxide. The degree of alkoxylation is usually from 1 to 20, preferably 2 to 10, particularly preferably from 2 to 6. Particularly preferred alkoxylated sugar esters are polysorbates obtained from the ethoxy ar sorbitan esters described above, for example, as was described on CD Ropp Chemie Lexikon - version 1.0, Stutt art / New York: Georg Thieme Verlag 1995, key "Polysorbate" [polysorbates]. Particularly preferred polysorbates are laurate, stearate, palmitate, tristearate, oleate, polyethoxysorbitol trioleate, in particular polyethoxysorbithane stearate, which is obtainable, for example, as Tween®60 from ICI America Inc. (described by way of example in CD Rpm Chemie Lexikon - version 1.0, Stutt art / New York: Georg Thieme Verlag 1995, key "Tween®").
Component O The sheets or sheets comprise, as component D, fibrous or particle fillings or mixtures thereof. These are preferably commercially available products, for example, carbon fibers and glass fibers. The glass fibers that can be used can be composed of glass E, A, or C, and have been preferably treated with a size and with a coupling agent. Its diameter is usually 6 to 20 μ? T? . It is possible to use continuous filament fibers (traveling) or either cut glass fibers (grapla) whose length is from 1 to 10 mm, preferably from 3 to 6 mm.
It is also possible to add fillers or reinforcement materials, such as glass beads, mineral fibers, filaments, aluminum oxide fibers, mica, quartz powder, and wollastonite. The plastic mixture wherein the inventive sheets or sheets are based may further comprise other additives that are typical of, and | familiar in, plastic mixtures. By way of example of these additives, mention may be made of: dyes, pigments, dyes, anti-static agents, antioxidants, stabilizers to improve heat resistance, to increase resistance to light, to increase resistance to hydrolysis and chemicals , agents to find decomposition by heat, and in particular the lubricants that are advantageous for the production of molds. These other additives can be measured at any stage of the production process, but preferably at any early juncture, so that the stabilizing effects (or other specific effects) of the additive can be used at an early stage. Heat stabilizers or oxidation retarders are usually metal halides (chlorides, bromides, iodides) derived from metals of group I of the periodic table of the elements (for example, Li, Na, K, Cu). Suitable stabilizers are conventional hindered phenols, but also vitamin E or compounds of analogous structure, stabilizers HALS (hindered amine light stabilizers), benzophenones, resorcinols, salicylates, benzotriazoles, such as Tinuvin® (the UV absorber 2- (2H-benzotriazol-2-yl) - 4-methylphenol from CIBA), and other compounds are also suitable. The amounts of these usually used are up to 2% by weight (with | base in the whole plastic mixture). Suitable lubricants and mold release agents are stearic acids, stearyl alcohol, stearic esters, and generally higher fatty acids, their derivatives, and corresponding fatty acid mixtures having from 12 to 30 carbon atoms. The amounts of these additives are in the range of 0.05 to 1% by weight. The silicone oils, oligomeric isotubylene, or similar substances can also be used as additives, and the usual amounts are from 0.05 to 5% by weight. It is also possible to use pigments, dyes, pain brighteners, such as ultramarine blue, phthalocyanines, titanium dioxide, cadmium sulphides, perylentetracarboxylic acid derivatives. The usually used amounts of processing aids and stabilizers, such as UV stabilizers, lubricants, and anti-static agents, are from 0.01 to 5% by weight.
Process for the production of [sheets of exempted sheets] The preparation of the thermoplastic mold compositions for the production of inventive sheets or sheets composed of the components A, B and, if present, C and D, occurs by processes known to the person skilled in the art. the technique, for example, via the mixing of the components in the fusion, using known apparatuses to the person skilled in the art, at temperatures which, depending on the nature of the polymer A used, are usually in the range of 150 to 300 ° C, in particular of 200 to 280 ° C. Each of the components here can be fed in pure form to the mixing devices. However, it is also possible to start pre-mixing individual components, for example A and B, and then mixing these with additional components A or B or with other components, such as C and D. In one embodiment, a concentrate is prepared first, by Example of components B, C or D, in component A (these are known as additive master charges), and then mixed with the desired quantities of the remaining components. The plastic blends can be processed by processes known to the person skilled in the art to give pills to be processed to give the inventive sheets or sheets at a later time, for example by extrusion, calender, or compression molding. Neverthelesscan also be processed, in particular, extruded directly after the mixing process or in an individual operation with the mixing process i (ie, simultaneous mixing in the melt and preferably extrusion, preferably by means of a screw extruder) , to give the inventive sheets or sheets. In a preferred embodiment of the inventive processes using extrusion, the design of the screw extruder is that of a single screw extruder with at least one mixing screw element of distributed shape.
In another preferred embodiment of the inventive processes, the design of the screw extruder is that of a twin screw extruder with at least one mixing screw element of distributed shape. The processes for extruding the inventive sheets or sheets can be carried out by the methods described in the prior art and known to the person skilled in the art, for example, slot extrusion in the form of adapter coextrusion or die coextrusion, and using the apparatuses described in the prior art and known to the person skilled in the art. Depending on the polymer used as component A, the nature and amount of the other components are selected in such a manner that the plastic mixtures comprising components A, B, and, if present, C and D have, in accordance with the invention , values of deformation by final traction within the following ranges: from to 1000%, preferably from 20% to 700%, preferably from 50% to 500% (for S-TPE and polyethylene as component A), from 10% to 300%, preferably from 12% to 200%, preferably from 15% to 150% (for polypropylene as component A), from 20% to 300%, preferably from 30% to 250%, particularly preferably from 40% to 200% (for polycarbonates as component A), from 1% to 300%, preferably from 15 to 250%, particularly preferably from 20% to 200% (for styrene polymers and PVC as component A).
Sheet: in mixed layers or sheets in mixed layers The inventive sheets or sheets are particularly suitable as outer layer (3) of sheets in mixed layers in multiple layers or mixed sheets in multiple layers, which in addition to the outer layer also have the minus one layer of substrate (1) composed of thermoplastic. In other embodiments, sheets in mixed layers or sheets in mixed layers comprise additional layers (2), by way of example color layers, adhesion promoter layers, or layers; intermediate, arranged between the outer layer (3) and the substrate layer (1). The substrate layer (1) can in principle be composed of any thermoplastic. The substrate layer (1) is preferably produced from the following materials described above in the shell composition: modified impact vinyl aromatic copolymers, styrene-based thermoplastic elastomers, polyolefins, polycarbonates, and thermoplastic polyurethanes, or mixtures thereof , particularly preferably of ASA, ABS, SAN, polypropylene, and polycarbonate, or mixtures thereof. The layer (2) differs from the layers (1) and (3), for example under of a polymer composition that differs from these and / or additive contents other than these, for example dyes or pigments of specific effect. By way of example, the layer (2) may be a cooling layer which may preferably comprise the following materials known to the person skilled in the art: colorants, color pigments, or specific effect pigments, such as mica or flakes of aluminum. However, the layer (2) can also serve to improve the mechanical stability of the sheets in mixed layers or sheets in mixed layers, or serve to promote adhesion between the layers (1) and (3). One embodiment of the invention provides a mixed layer sheet or composite layered composite composed of a layer of substrate (1) such as: described above, an outer layer (3), and, positioned therebetween, an intermediate layer (2) which It is composed of aliphatic thermoplastic polyurethane, modified polymethyl methacrylate (PMMA), polycarbonate, or styrene (co) polymers, such as SAN, which may have been modified impact, examples being ASA or ABS, or mixtures of these polymers. If aliphatic thermoplastic polyurethane is used as the material of the intermediate layer (2), it is possible to use the aliphatic thermoplastic polyurethane described for layer (3). If polycarbonate is used as intermediate layer (2), it is possible to use the polycarbonate described for layer (3). |) > Modified impact MMA (PMMA or H I PMMA high impact) is a polymethyl methacrylate that has become resistant to impact by virtue of suitable additives. Examples of suitable modified impact MAs are described by M. Stickler, T. Rhein in U Imann's Encyclopedia of Industrial Chemistry, vol. A21, pages 473-485, VCH Publishers einheim, 1992, and H. Domininghaus, Die Kunststoffe und ihre Eigenschaften [plastics and their properties], VDI-Verlag Dusseldorf, 1992. | The layer thickness of the leaves in previous mixed layers or Lamellae in mixed layers is generally 15 to 5000 μP ?, preferably 30 to 3000 μ, particularly preferably 50 to 2000 μ? t ?. In a preferred embodiment of the invention, the sheets in mixed layers or sheets in mixed layers are composed of a layer of substrate (1) and an outer layer (3) with the following layer thicknesses: substrate layer (1) of 50 μ? T? at 1.5 mm; outer layer (3) from 10 to 500 pm. In another preferred embodiment of the invention, the sheets in mixed layers or layers in mixed layers are composed of a substrate layer (1), an intermediate layer (2) and an outer layer (3). The sheets in mixed layers or sheets in mixed layers composed of a substrate (1), an intermediate layer (2), and an outer layer (3) preferably have the following layer thicknesses: substrate layer (1) ) of 50 μ ?? at 1.5 mm; intermediate layer (2) from 50 to 500 | jm; outer layer (3) from 10 to 500 mm. The sheets in mixed layers or sheets in inventive mixed layers may also have, in addition to the mentioned layers, on that side of the substrate layer (1) looking away from the outer layer (3), other layers, preferably an adhesion promoter layer, which serve for better adhesion of the sheets in mixed layers or sheets in mixed layers with the layer of support that will be described later. Adhesion promoter layers of this type are preferably produced from a material compatible with polyolefins, for example SEBS (styrene-ethylene-butadiene-styrene copolymer, for example, manufactured under the tradename raton®). If this type of adhesion promoter layer is present, its thickness is preferably 10 to 300 μ? T ?. The sheets in mixed layers or sheets in mixed layers can be produced by processes that are known and described in the prior art (for example in WO 04/00935), for example, via adapter extrusion or coextrusion or lamination or lamination of the layers between yes. In the coextrusion processes, the components that form the individual layers are made to flow in extruders and, by means of specific apparatuses, they make contact with each other in such a way to give the sheets in mixed layers or sheets in mixed layers with the layer sequence described above. By means of example, the components can be coextruded through a slot die or a coextrusion, EP-A 2 0 225 500 explains this process. They can also be produced by the coextrusion process adapter, as described in the procedures of the conference of extrusion technology "Coextrusion von Folien", 8 and i October 9, 1996, VDI-Verlag Dusseldorf, in particular in the document by Dr. Netze. Usually this profitable process is used when coextrusion is used. The sheets in mixed layers and sheets in inventive mixed layers can also be produced by mutual lamination or mutational lamination of sheets or sheets in a heatable laminate. Here, the sheets or sheets are first produced separately, corresponding to the layers described. Known processes can be used for this purpose. The desired layer sequence is then produced via appropriate mutual superposition of the sheets or sheets, and then, by way of example, they pass through a heatable laminate between rolls and are bonded with exposure to pressure and heat to give a sheet in layers mixed or sheet in mixti layers. In particular, in the case of the adapter co-extrusion process, the equalization of the flow properties of the individual components is advantageous for the formation of uniform layers in the layers in mixed layers or layers in mixed layers.
Molds The sheets or sheets and sheets in mixed layers or sheets in mixed layers comprising the inventive sheets or sheets can be used to produce molds. Any desired mold is accessible here, giving preference to sheet-like molds, in particular molds with large surface area. These sheets or sheets and ho as in mixed layers or sheets in mixed layers are used particularly preferably for the production of molds in which values of very good tenacity, good adhesion of the individual layers to each other, and good dimensional stability are important, in this way by means of of example minimizing rupture by detachment of the surfaces. Particularly preferred molds have monollamines or sheets in mixed layers or sheets in mixed layers comprising the inventive sheets or sheets and a backing layer composed of plastic applied to the back of the material by a process of injection molding, foaming, casting, or compression molding. Processes that are known and described by way of example in WO 04/00935 can be used for the production of inventive moldBS of the sheets or sheets or sheets in mixed layers or sheets in mixed layers (the processes for further processing of sheets) in mixed layers or sheets in mixed layers being described below, but these processes also being able to be used for further processing of the inventive sheets or sheets). The material can be applied to the back of the sheets in mixed layers or sheets in mixed layers by a process of injection molding, foaming, casting, or compression molding, without any additional processing step. In particular, the use of the sheets in mixed layers or sheets in mixed layers described allows the production even of slightly three-dimensional components without previous thermoforming. However, the leaves In mixed layers or sheets in mixed layers they can also be subjected to a previous thermoforming process. By way of example, it is possible to thermoform leaves into mixed layers or sheets into mixed layers with the three-layer structure composed of substrate layer, intermediate layer, or outer layer, or of the two-layer structure composed of substrate layer and external layer, to produce relatively complex components. Thermoforming processes, either positive or negative, can be used here. The appropriate processes are known to the person skilled in the art. The sheets in mixed layers or sheets in mixed layers are oriented here in the thermoforming process. Since the surface quality and the ability to metallize sheets in mixed layers or sheets in mixed layers do not decrease with orientation at high orientation ratios, for example up to 1: 5, there are almost no restrictions with respect to the possible orientation in the thermoforming processes. After the thermoforming process, the sheets or sheets in mixed layers can be subjected to still further configuration steps, for example, pejrfil cuts. The inventive molds can be produced, if appropriate after the described thermoforming processes, by applying material to the backside of the sheets in mixed layers or layered sheets; mixed via injection molding, foaming, casting, or compression molding processes. These methods are known to those skilled in the art and are described by way of example in DE-A1 100 ¡190 or DE-A1 199 39 111. Inventive molds are obtained by applying plastics material to the back of the sheets in mixed layers via injection molding, foaming, casting, compression molding, or casting processes preferably comprise thermoplastic molding compositions based on ABS polymers | or in ASA polymers, in SAN polymers, in poly (meth) acrylates, in polyether sulfones, in polybutylene terephthalate, in polycarbonates, in polypropylene (PP), or in Ilean polye (PE), or otherwise compound mixtures of polymers of ASA or polymers of ABS and of polycarbonates or polybutylene terephthalate, and mixtures composed of polycarbonates and polybutylene terephthalate, and if PP and / or PE is used here clearly it is possible to provide the substrate layer in advance with an adhesion promoter layer. Particularly suitable materials are amorphous thermoplastics and mixtures thereof. A plastic material preferably used for application to the back of the material by an injection molding process is ABS polymer polymers of SAN. In another preferred embodiment, thermosetting molding compositions known to those skilled in the art are used for application to the rear of the material by a foaming or compression molding process. In another preferred embodiment, these are reinforced glass fiber plastic materials, and suitable variants in particular are described in DE-Al! 100 55 190. For application to the rear of the material by i a foaming process, it is preferable to use polyurethane foams, for example, those described in DE-A1 199 39 111. | In a preferred process for producing the inventive molds, the mixed layered sheet or mixed layered sheet is thermoformed and then placed in a back mold, and thermoplastic mold compositions are applied to the back of the material by a process of injection molding, casting, or compression molding, or thermofixing molding compositions are applied to the back of the material by a foaming or mold process or by compression. After thermoforming and before placing in the back mold, the mixed layered sheet or mixed layered sheet can pass through a profile cut. The profile cut can also be delayed until after removing the back mold from the mold. 1 I Metallized polymeric sheets The inventive sheets or sheets, or sheets in mixed layers or sheets and mixed layers, and molds are particularly suitable for the production of metallized polymer products, no need for specific pretreatment of the surface of the sheets. or leaves, or sheets in mixed layers or leaves in mixed layers, and molces. Suitable processes for the production of the inventive metallized polymer products are in principle any of the processes described in the literature and known to the expert in the art. technique for the deposition of metals by a method without current or electroplating on plastic surfaces (for example, see Harold Ebneth and others, Metallisieren von Kunststoffen: Praktische Erfahrungen mit physikalisch, chemisch und galvanisch metallisierten Hoch Dolymeren [metallization of plastics: practical experience with high metallized polymers by physical, chemical and electroplating methods], Expert Verlag, Renningen-Malmsheim, 1995, ISBN 3-81 T9-1037-8, Kart Heymann and others, Kunststoffmetallisierung: HandDuch für Theorie und Praxis [metallization of plastics : Manual of theory and practice], No. 22 in the series entitled Galvanotechnik und Oberfláchenbehandlung [electroplating technology and surface treatment], Saulgau: Leuze, 1991; Mittal, KL (ed.), "Metallized Plastics Three: Fundamental and Applied Aspects, Third Electron Chemical Society Symposium on Metallized Plastics: Proceedings, Phoenix, Arizona, October 13-18, 1991, New to York, Plenum Press). after the respective final configuration process, the inventive sheets or sheets, the sheets in mixed layers or sheets in mixed layers, or the molds usually make contact with an acid, neutral or basic solution of metallic salt by a method without current or electroplating , where the normal electrode potential of the metal of this metal salt solution in corresponding acid, neutral or basic solution is more positive than that of component B. Preferred metals whose standard potential of electrodes I in acidic, neutral or basic solution is more positive than that of component B are gold and silver (if component B is copper), or copper, nickel and silver, in particular copper, (if component B is iron). An Ms layer is thus deposited by a currentless or electroplating method in that layer of the inventive sheets or sheets, of the sheets in mixed layers or sheets in mixed layers, or of the molds comprising the component B. The preferred layers Ms are layers of gold and layers of silver (if component B is copper), or layers; of copper, layers of nickel, or layers of silver, in particular layers; of copper (if component B is iron). The thickness of the Ms layer that can be deposited by a method without current is in the usual scale known to the person skilled in the art and is not significant for the invention. The processes described in the literature and known to the person skilled in the art can be used to apply one or more metallic layers Mg, preferably by an electroplating method, that is, with application of external potential and current flow, to the Ms layer that can be deposited by a method without current. It is preferable to deposit copper layers, chromium layers, silver layers, and / or nickel layers by an electroplating method. The deposition of the aluminum composite layers g by an electroplating method is also preferred. Another possibility is the application via direct metallization by means of vacuum vapor deposition, bombardment / spraying, or spraying by methods known to those skilled in the art. The thicknesses of the one or more Mg layers deposited are in the conventional scale known to the person skilled in the art and are not significant for the invention. Particularly preferred metallized polymer products for use as electrically conductive components, in particular printed circuit boards, have a copper layer deposited by a currentless method and at least one other layer deposited by an electroplating method. Metallized polymer products particularly preferred for use in the decorative sector have a copper layer deposited by a currentless method and there a layer of nickel deposited by an electroplating method, and a layer of chromium, silver layer, or layer of gold deposited in that layer. The inventive sheets or sheets, sheets in composite layers or sheets! in composite layers, and molds comprising component B are suitable, without subsequent metallization, as EMI protective systems (i.e., protection to avoid what is known as electromagnetic interference), such as absorbents, attenuators, or reflectors for electromagnetic radiation or as oxygen scavengers. Inventive metallized polymer products comprising a metal layer M which can be deposited by a currentless method are suitable, without additional deposition of any Mg metal layer, as electrically conductive components, in particular printed circuit boards, transpjonder antennas , switches, sensors, and MIDs, and systems EMI protectors, such as absorbers, attenuators, or reflectors for electromagnetic radiation, or as gas scavengers. Metallized polymer products comprising a metal layer Ms which can be deposited by a currentless method and at least one deposited metal layer g are suitable as electrically conductive components, in particular printed circuit boards, transponder antennas, switches, sensors , and MIDs, and EMI protective systems, such as absorbers, attenuators, or reflectors for electromagnetic radiation, or gas sweepers, or decorative parts, in particular decorative parts in the motor vehicle sector, health sector, toy sector, sector domestic, and office sector. Examples of these uses are: computer cases, cases for electronic components, and military and non-military selection equipment, bathroom accessories, accessories for sinks, showers, bath rails and bath bras, metallic keys and majnijas, roll fasteners of toilet paper, tub handles, metallic decorative strips on furniture and mirrors, frames for sprinkler divisions. Mention may also be made of: metallized plastic surfaces in the automotive sector, for example, decorative strips, exterior mirrors, radiator grills, chest metallization, wing surfaces, exterior body parts, falcas, footprint substitute, covers of decorative rims. In particular, the parties here to some degree or entirely produced from metals, can be produced from plastic. Examples that can be mentioned here are: tools, such as tweezers, screwdrivers, drills, chucks, saws, star keys and fixed wrenches. Metallized polymer products are also used - if they comprise magnetizable metals - in sectors for magnetizable functional parts, such as magnetic panels, magnetic sets, magnetic areas in, for example, refrigerator doors. They are also used in sectors where good thermal conductivity is advantageous, for example, in sheets for heated seats, heated floors, insulating materials. When compared with known metallizable plastic parts, the inventive metallizable plastic parts have improved mechanical properties, in particular improved tenacity, flexural strength and forming ability, and also improved processing properties, for example, in forming processes for the production involving complex molding of components, and they are metallizable without specific pretreatment of the plastic surface, without having comparatively good use properties with respect to, by way of example, ability to metallize by non-current and electroplating methods, and absorption , attenuation, and reflection of electromagnetic radiation, or absorption of oxygen. Are examples used later to provide additional illustration of the invention.
The component A used included: A1 Styroflex® 2G66, an S-TPE from BASF Aktiengesellschaft whose tensile strength at break is 480% and whose tensile strength is 13.9 MPa A2. Polypropylene, a commercially available homopolypropylene of moderate flow ability A3. Styrolux® 3G55 by BASF Aktiengesellschaft A4. Ecoflex® F BX 7011, an aliphatic-aromatic copolyester from BASF Aktiengesellschaft whose tensile strain at break is 560% and 710% (parallel and, respectively, perpendicular to the preferential direction) and whose tensile strength is 29.8 MPa. component B used included B1 PCarbonyl iron powder (Typo SQ) from BASF ! Aktiengesellschaft, the diameter of all of whose particles of I powder is from 1 to 8 pm.
Experimental series 1: In each case, a plastic mixture of 1 part by weight of A1 and 17 parts by weight of B1, and, respectively, 1 part by weight of A2 and 17 parts by weight of B1 in a mixer (IKAVISC MKD H60 laboratory mixer) at temperatures from 140 to 190 ° C.
In each case, a free flow powder was obtained, and then it was compounded in a DSM miniextruder with enough of component A3 to give 89% content by weight of component B1, based on the total weight of the plastic mixtures. Each of these plastic mixtures was then injection molded at 220 ° C to give test specimens, and tensile-to-rupture strain values were determined in the tensile test at ISO 527-2: 1996 on type test specimens. 1 BA (Annex A of the aforementioned standard: "small test specimens"). From each of the plastic mixtures, a pressed sheet with a thickness of 100 μ? T ?, was produced at a temperature of 200 ° C, the pressure in the press being 200 bar. Each of the sheets obtained was placed in an injection mold (60x60x2 mm plates with film inlet), and Styrolux® 3G55 was applied at 200 ° C to the part | back of the material by an injection molding process i (Netstal in in-mold injection molding machine | with semiautomatic control, screw diameter 32 mm, needle valve nozzle, sprue feeder, grosor plate j mold 4 mm and area 200 x 100 mm, screw rotation speed 100 rpm, screw feed speed: 50 mm / s, cycle time: | d? S, injection time: 2 s, sustained pressure time : 10 s, cooling period: 30 s, plasticizing time: 18 s, cylinder temperature: 200 to 220 ° C, mold surface temperature: 34 ° C for the plastic mixture comprising A2, and, respectively, 45 ° C for the plastic mixture comprising A1). Each of these mold-coating processes gave a mixed body that could not be delaminated manually (meaning that the tension exerted on the sheet by test equipment 5 did not lead to detachment). A readily visible Cu layer was then formed in the mixed bodies via immersion in cupric sulfate solution, within a period of 5 hours by a method without current and, respectively, within a period of 10 minutes via application of a voltage of 1 to 2 V.
Experimental series 2: The quantitative proportions mentioned in table 1 of components A1 and B1 (data in% by weight, in each case based on all components A1 and B1) were composed at 20o | C in a miniextrusor of DS. Table 1 shows if the elemejntal copper is deposited in immersion of each one of the obtained mixtures in an aqueous acidic CuS04 solution (pH 4): The mixtures obtained in experiment 4 were pressed to 180 ° G and 200 bar to give sheets of the thickness mentioned in table 2. The smoothness of the resulting sheets is also shown in table 2.
In order to produce sheets in mixed layers, the following injection molding process was used to apply material to the backing of the sheets obtained in experiments 8, 9, 10 and 11: Each of the sheets was placed in an injection mold (60 x 60 x 2 mm plates with film inlet), and Styrolux® 3G55 was applied at 200 ° C to the back of the material by a process of injection molding (Netstal mold injection molding machine with control semi-automatic, screw diameter 32 mm, needle valve, sprue gate, plate mold thickness 4 mm and area 200 x 100 mm, screw rotation speed 100 rpm, advanced screw speed: 50 mm / s, time cycle: 50 s, injection time: 2 s, sustained pressure time: 10 s, cooling time: plasticizing time: 18 s, cylinder temperature: 200 - 220 ° C, mold surface temperature: 45 ° C). The sheets in mixed layers produced from the sheets of experiments 8, 9 and 10 could not be laminated manually, that is to say that after having applied the material to the back part in an injection molding process, it was impossible to separate the material from Laii resulting sheets. The mixed layered sheet produced from the experiment sheet 11 could be manually laminated. The sheets in mixed layers produced from the sheets of experiments 8, 9, 10 and 11 were then made copper by immersion of the sheets in mixed layers in a 5% strength by weight solution of CuS04 at 23 ° C. (pH 1-2, 1 V, 2 A); in each case, copper was visibly deposited in 1 minute.
Experimental series 3: Experiment 12: A homogeneous mixture was prepared in a double screw kneader at temperatures of 180 ° C to 190 ° C of 16.4 parts by weight of component A4, 82.2 parts by weight of component B1, and 1.4 parts by weight of Pluronic® PE 6800 (a block copolymer of BASF Aktie ngesellschaft composed of 50 mol% of ethylene oxide units and 50 mol% of propylene oxide units) as component C. A tensile strain breakage of tensile specimens produced from this mixture it was 11.8% and its tensile deflection was 11.0 MPa, and could be metallized in a commercially available copper electroplating bath.
Experiment 13: A homogeneous mixture was prepared in a double screw kneader! at temperatures of 180 ° C of 19.8 parts by weight of component A1, 79.0 parts by weight of component B1, and 1.2 parts in pebble of Emulan® EL (a ethoxylate of castor oil) as component C. A rupture of tensile deformation of tensile specimens produced from this mixture was 371% and its tensile strain was 5.4 MPa, and could be metallized in a commercially available copper electroplating bath.

Claims (8)

EDV! NDICACOONES
1. - A sheet or sheet produced from a commingling plastic mixture, based on the total weight of components A, B, C and D, which gives a total of 100% by weight,
from 5 to 50% by weight of a thermoplastic polymer as component A, from 50 to 95% by weight of a metal powder with a diameter of
I average particle from 0.01 to 100 μ? T? (determined by the method defined in the description), wherein the potential of (normal electrodes of the metal in acid solution is more negative than that of silver, as component B, from 0 to 10% by weight of a dispersing agent as component C, and from 0 to 40% by weight of fibrous or particle fillers or their mixtures as component D,
wherein the tensile-to-rupture deformation of component A (determined by the method defined in the description) is greater by a factor of 1.1 to 100 than the tensile-to-rupture deformation of the plastics mixture comprising components A, B and , if present, C and D (determined by the method defined in the description), and where the tensile deformation of component A (determined by the method defined in the description) is greater
by a factor of 0.5 to 4 that the tensile strain of the plastics mixture comprising components A, B, and, if present, C and D (determined by the method defined in the definition).
2. The sheet or sheet according to claim 1, wherein the tensile-to-rupture deformation of the component A (determined by the method defined in the description) is greater by a factor of 1.2 to 50 than the tensile strain rupture of the plastic mixture comprising components A, B, and, if present, C and D (determined by the method defined in the description), and where the tensile deformation of component A (determined by the defined method) in the description) is greater by a factor of 1 to 3 than the tensile strain of the plastic mixture comprising components A, B, and, if present, C and D (determined by the method defined in the description).
3. The sheet or sheet according to claims 1 or 2, wherein the component A used comprises one or more polymers selected from the group consisting of modified impact vinyl aromatic copolymers, styrene-based thermo-plastic elastomers, polyolefins, polycarbonates, and thermoplastic polyurfetanes. The sheet or sheet according to claims 1 to 3, wherein the component B used comprises carbohydrate iron powder. .- The sheet or sheet according to claims 1
to 4, wherein the plastic mixture comprises
a from 5 to 49.9% by weight of component A, b from 50 to 94.9% by weight of component B, c from 0.1 to 10% by weight of component C, and d from 0 to 40% by weight of component D.
6. - A thermoplastic mold composition for the production of sheets or sheets according to claims 1 to 5, which is understood, based on the total weight of the components A, B,
C and DI which gives a total of 100% by weight,
from 5 to 50% by weight of a thermoplastic polymer as component A, b | from 50 to 95% by weight of a metal powder with an average particle diameter of 0.01 to 100 μm (determined by the method defined in the description) , wherein the normal electrode potential of the metal in acid solution is more negative than that of silver, as component B, c from 0 to 10% by weight of a dispersing agent as component C, and from 0 to 40% by weight of fibrous or particle fillings or their mixtures as component D, where the tensile-to-rupture deformation of component A (determined by the method defined in the description) is greater by
a factor of 1.1 to 100 than the tensile-to-rupture deformation of the plastics mixture comprising the components A, B and, if present, C and D (determined by the method defined in the description), and where the deformation by pulling the component A (determined by the method defined in the description) is greater by a factor of 0.5 to 4 than the tensile strain of the plastic mixture comprising the components A, B, and, if they are preselting, C and D (determined by the method defined in the definition).
7. A palletized material, comprising the thermoplastic mold composition for the production of sheets or sheets in accordance with claim 6.
8. A mixed layered sheet or mixed layered sheet, comprising a sheet or sheet according to claims 1 to 5 as an outer layer and at least one subsurface layer produced from one or more thermoplastic polymers. 9. - A mold comprising a sheet or sheet according to claims 1 to 5 or a mixed layer sheet or mixed layer sheet according to claim 8 and a cover layer composed of plastic and applied to the part back of the material by a process of injection molding, foaming, casting or compression molding. 10. A metallized polymer product comprising a sheet or sheet according to claims 1 to 5 or a mixed layered sheet or mixed layered sheet in accordance with
claim 8, or a mold according to claim 9, and at least one Ms layer that can be deposited by an uncorrected method in the layer comprising component B and is composed of a metal, wherein the normal electrode potential of this goal in acid solution is more positive than that of component B,
and MS is deposited by a method without current and electroplating. 11. The metallized polymer product according to claim 10, wherein the Ms layer is composed of silver and / or copper and / or nickel, and the B component is iron. l2.- The metallized polymer product according to claims 10 to 11, comprising one or more metallic Mg layers deposited in the metallic layer s that can be deposited by a method without current, where Ms is deposited by a method without current or electroplating. 13. The metallized polymer product according to claim 12, wherein the one or more metallic layers Mg are composed of copper and / or chromium and / or nickel and / or silver and / or gold, and have been deposited by an electroplating method. 114. A process for the production of a sheet or sheet of confoj-midad with any of the claims 1 to 5 when mixing in the casting and extrusion of components A, B, and, if present, C and D. 15. A process for the production of a mixed layered ju laminated sheet sheet according to claim 8, which comprises joining all the layers of the sheet in mixed layers or
laminated sheet mixed together in the molten state in a co-extrusion process. 16. - A process for the production of a mixed layered sheet or mixed layered sheet according to claim 8, comprising joining one or more of the layers of the laminate into mixed layers or layered sheet mixed together in a Rolling or rolling process in a hot rolling roll. 17. - A process for the production of a mold according to claim 9, comprising, if appropriate after a thermoforming process, placing the sheet or sheet in mixed layers or mixed layer sheet in a mold of back mold and applying thermoplastic mold compositions to the rear of the material by an injection molding process, casting, or compression molding, or applying thermoplastic mold compositions to the rear of the material by a foaming or molding process. compression. 18. - A process for the production of a metallized polymer product according to claims 10 to 11, comprising, after the respective final configuration process, carrying the sheets or sheets according to claims 1 to 5 or the sheets in mixed layers or mixed layer sheet according to claim 8 or the mold according to claim 9 in contact with an acid, neutral or basic solution of metal salt, wherein the normal electrode potential of this metal in acid solution , neutral or basic is more positive than that
of component B. 19. A process for the production of a metallized polymer product according to claims 12 to 13, comprising, after the respective final configuration process, carrying the sheets or sheets in accordance with claims 1. to 5 or the mixed layer sheet or mixed layer sheet according to claim 8 or the mold according to claim 9 in contact with an acidic, neutral or basic solution of metallic salt, wherein the potential of Normal electrodes of this target in corresponding acid, neutral or basic solution is more positive than that of component B and subject them to a subsequent metallization process that occurs either by deposition by a method of electroplating less noble metals than silver or by metallization direct by vacuum vapor deposition, bombardment / spraying, or spraying. 20. The use of sheets or sheets in accordance with claims 1 to 5 or of the sheets in mixed layers or sheets in mixed layers according to claim 8 or of molds according to claim 9 as protective systems and I, such as absorbers, attenuators, or reflectors for electromagnetic radiation, or as oxygen scavengers. 21. The use of metallized polymer products according to claims 10 to 11 as electrically conductive components of protective systems E I, such as absorbers, attenuators or reflectors for radiation
electromagnetic, or as gas sweepers. 122. The use of metallized polymer products according to claims 12 to 13 as electrically conductive components, or EI protective systems, such as absorbers, attenuators, or reflectors for electromagnetic radiation, or as gas scavengers or decorative parts, in particular decorative parts in the vehicle sector, health sector, toy sector, domestic sector, and office sector. 23. An EMI protective system, such as an absorber, attenuator or reflector for electromagnetic radiation or an oxygen scavenger, comprising extruded sheets or sheets according to claims 1 to 5 or laminates in mixed layers or sheets in mixed layers of compliance with claim 8 or molds according to claim 9. 24 - An electrically conductive component, or a protective system EI, such as absorber, attenuator or reflector for electromagnetic radiation, or a gas scavenger, comprising products of metallized polymer of according to claims 10 to 13. 25.- An EMI protective system, such as absorber, attenuator or refljector for electromagnetic radiation, a gas sweeper, or a decorative part, in particular a decorative part in the automotive sector, health sector, toy sector, domestic sector, or office sector, which comprises metallized polymer products in accordance with the s claims 12 to 13.
SUMMARY OF THE INVENTION
There are described films or plates made of a mixture of plastic and layers of metallization, comprising, in relation to the total weight of the components A, B, C and D, which add up to 100% by weight: (a) from 5 to 50 % by weight of a teriroplastic polymer as component A; (b) from 50 to 95% by weight of a metal powder having an average particle diameter of 0.01 to Ü00 μm (determined by the method defined in Da description), the metal having a normal negative potential in a silver-colored solution , as component B; (c) from 0 to 10% by weight of a dispersing agent as component C; and (d) from 0 to 40% by weight of fibrous or particle fillers or their mixtures as component D. The tensile to rupture deformation of component A (determined by the method defined in the description) is greater by a factor of 1.1. to 100 that the tensile to rupture deformation of the plastic means comprising the components A, B and, if present, C and D (determined by the method defined in the description), and where the tensile deformation of component A (determined by the method defined in the description) is greater by a factor of 0.5 to 4 than the tensile strain of the plastic mixture comprising components A, B, and, if present, C and D ( determined by the method defined in the definition). Thermoplastic mold composites are also disclosed to produce these films or plates that can be
metajize, a granule comprising these thermoplastic mold composites, films or mixed laminated plates and molds comprising these films or plates, metallized polymer bodies comprising these films or plates, films or mixed laminated plates and molds, processes for producing these objects , the use of these objects as EMI protectors and absorbers, attenuators or reflectors for electromagnetic radiation, oxygen scavengers, electroconductive components, gas scavengers, and decorative elements comprising these objects.
MXMX/A/2007/012920A 2005-04-27 2007-10-17 Plastic objects for metal-plating with improved shaping properties MX2007012920A (en)

Applications Claiming Priority (4)

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DE102005019923.2 2005-04-27
DE102005048122.1 2005-10-06
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DE102005059324.0 2005-12-09

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