EP1404520A2 - Systemes multicouches comportant des matieres moulees antistatiques - Google Patents

Systemes multicouches comportant des matieres moulees antistatiques

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Publication number
EP1404520A2
EP1404520A2 EP02735232A EP02735232A EP1404520A2 EP 1404520 A2 EP1404520 A2 EP 1404520A2 EP 02735232 A EP02735232 A EP 02735232A EP 02735232 A EP02735232 A EP 02735232A EP 1404520 A2 EP1404520 A2 EP 1404520A2
Authority
EP
European Patent Office
Prior art keywords
acid
antistatic
ion
hydroxyphenyl
layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02735232A
Other languages
German (de)
English (en)
Inventor
Rüdiger Gorny
Siegfried Anders
Wolfgang Nising
Martin Döbler
Jürgen Röhner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Covestro Deutschland AG
Original Assignee
Bayer MaterialScience AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer MaterialScience AG filed Critical Bayer MaterialScience AG
Publication of EP1404520A2 publication Critical patent/EP1404520A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B32B27/20—Layered products comprising a layer of synthetic resin characterised by the use of special additives using fillers, pigments, thixotroping agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • B32B27/365—Layered products comprising a layer of synthetic resin comprising polyesters comprising polycarbonates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
    • B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
    • B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0091—Complexes with metal-heteroatom-bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/24—All layers being polymeric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
    • B32B2307/21—Anti-static
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2323/00—Polyalkenes
    • B32B2323/10—Polypropylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2325/00—Polymers of vinyl-aromatic compounds, e.g. polystyrene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2369/00—Polycarbonates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles

Definitions

  • the invention relates to multilayer systems made of thermoplastic molding compositions, in particular sheets, which have a lower tendency to accumulate dust and do not become electrostatically charged during manufacture and use.
  • Thermoplastic extruded molded articles such as Polycarbonate sheets are known, for example, from EP A 0 110 221 and are provided for a large number of applications. They are produced by extrusion and, if appropriate, coextrusion of the thermoplastics.
  • JP-A 06 228 420 describes aliphatic sulfonic acid ammonium salts in polycarbonate as an antistatic. However, these compounds lead to in the polycarbonate melt
  • JP-A 62 230 835 describes the addition of 4% nonylphenylsulfonic acid tetrabutylphosphonium in polycarbonate.
  • WO-A 01/12713 describes the use of tetraethylammonium perfluorooctane sulfonate as an antistatic in polycarbonate.
  • a disadvantage of this compound is the appearance of a yellow color after the
  • Extruded molded parts from thermoplastics such as polycarbonate sheets are mainly used as clear-transparent, translucent or opaque colored sheets.
  • the sheets colored in this way are produced by adding color masterbatches to undyed or lightly blued polycarbonate during the extrusion.
  • the maximum usable concentration of the antistatic in the polycarbonate matrix is limited by the molecular weight reduction of the polycarbonate caused by the antistatic. In the case of colored plates in particular, the color is then thinned by adding the antistatic masterbatch.
  • the invention is therefore based on the object of providing moldings and extrudates from antistatic thermoplastic molding compositions whose optical quality, but also their other properties, such as e.g. their mechanical properties and heat resistance do not differ significantly from non-antistatic molding compounds and bodies.
  • thermoplastic molding compositions which contain at least one special antistatic.
  • This layer system is characterized in that it contains at least two layers and at least one of these layers contains at least one thermoplastic molding composition according to the invention, containing at least one special antistatic.
  • the layer system consists of at least two layers of one or different thermoplastics, at least one layer containing a thermoplastic which contains at least one of the special antistatic agents according to the invention.
  • the thickness of the entire layer system is preferably 21 ⁇ m to 10 cm, particularly preferably 40 ⁇ m to 15 mm and very particularly preferably 100 ⁇ m to 12 mm.
  • the thickness of the individual layers of the layer system is preferably 1 ⁇ m to 10 cm.
  • the thickness of the layer or layers which the antistatic contains is preferably between 1 ⁇ m and 200 ⁇ m, preferably 20 ⁇ m to 100 ⁇ m, particularly preferably 40 ⁇ m to 60 ⁇ m.
  • the thickness of the layer or layers which the antistatic according to the invention does not contain is between 20 ⁇ m and 10 cm.
  • the preferred thickness is between 20 and 600 ⁇ m, in the case of solid sheets between 600 ⁇ m and 15 mm and in the case of multi-wall sheets between 0.4 and 10 cm.
  • thermoplastic molding compositions without the antistatic according to the invention A layer containing thermoplastic molding compositions without the antistatic according to the invention
  • thermoplastic molding composition A layer containing the antistatic thermoplastic molding composition according to the invention. - A layer containing thermoplastic molding compositions without the antistatic agent according to the invention
  • a layer containing the antistatic thermoplastic molding composition according to the invention is a layer containing the antistatic thermoplastic molding composition according to the invention.
  • the individual layer systems can furthermore each independently further
  • additives such as UV absorbers, thermal stabilizers, antioxidants, mold release agents medium, flame retardant additives, dyes, pigments, brighteners, glass fibers, foaming agents, nucleating agents, plasticizers, processing aids, fillers or other additives customary in the respective thermoplastics in amounts between 0.001 and 30% by weight.
  • additives suitable and their amount such as, for example, Gumbleter; Müller, Plastics Additives, Hanser Verlag, Kunststoff 1996 or described in EP 0 839 623 AI or EP 0 500 496 AI
  • the salts of type (I) are suitable as antistatic agents in the sense of the invention.
  • R perfluorinated linear or branched carbon chains with 1 to 30 carbon atoms, preferably 4 to 8 carbon atoms;
  • A is a direct bond or an aromatic nucleus, for example and preferably fluorinated or non-fluorinated o-, m- or p-phenylene;
  • R ⁇ R ", R" ⁇ R "" each independently of one another or unsubstituted
  • Particularly preferred quaternary ammonium salts in the sense of the invention are:
  • Cyclohexyldiethylmethylammoniumperfluoroctansulfonat Cyclohexyltrimethylammonium perfluorobutyl sulfonate, cyclohexyltrimethylammonium perfluorooctane sulfonate,
  • each of the salts mentioned is also preferably suitable.
  • the perfluoroalkylsulfonic acid ammonium salts are known or can be prepared by known methods.
  • the salts of the sulfonic acids can be prepared by combining equimolar amounts of the free sulfonic acid with the hydroxy form of the corresponding cation in water at room temperature and concentrating the solution.
  • Other manufacturing processes are described e.g. in DE A 19
  • the perfluoroalkylsulfonic acid ammonium salts are preferably added to the plastics in amounts of 0.001 to 2% by weight, preferably 0.1 to 1% by weight.
  • Thermoplastics suitable for the purposes of the invention are in particular transparent thermoplastics. Polymers of ethylenically unsaturated monomers and / or polycondensates of bifunctional reactive compounds are preferred.
  • plastics are polycarbonates or copolycarbonates based on bisphenols, the poly- or copolyacrylates and poly- or copolymethacrylates such as by way of example and preferably polymethyl methacrylate, poly- or copolymers with styrene such as by way of example and preferably transparent polystyrene or polystyrene-acrylonitrile (SAN), transparent thermoplastic Polyurethanes, as well as polyolefins, such as exemplary and preferably transparent types of polypropylene or poly- olefins based on cyclic olefins (eg TOPAS ® , Hoechst), poly- or copolycondensates of terephthalic acid with or without isophthalic acid, with ethylene glycol and / or cyclohexanedimethanol such as by way of example and preferably poly- or copolyethylene terephthalate (PET or CoPET) or cyclohexanedim
  • Polycarbonates or copolycarbonates in particular non-halogenated polycarbonates and / or copolycarbonates with weight-average molecular weights M w of from 5000 to 100,000, preferably from 10,000 to 50,000, particularly preferably from 15,000 to 40,000, are particularly preferred.
  • Homopolycarbonates, copolycarbonates and thermoplastic polyester carbonates are particularly suitable. They have weight average molecular weights M w of 18,000 to 40,000, preferably from 26,000 to 36,000 and in particular from 28,000 to 35,000, determined by measuring the rel. Solution viscosity in dichloromethane or in
  • the melt viscosity of the molding compositions containing the antistatic should preferably be lower than the melt viscosity of the molding compositions of the others
  • Compounds which are preferably to be used as starting compounds are bisphenols of the general formula HO-Z-OH, in which Z is a divalent organic radical having 6 to 30 carbon atoms and containing one or more aromatic groups.
  • Examples of such compounds are bisphenols which belong to the group of dihydroxydiphenyls, bis (hydroxyphenyl) alkanes, indane bisphenols, bis (hydroxyphenyl) ethers, bis (hydroxyphenyl) sulfones, bis (hydroxyphenyl) ketones and ⁇ , ⁇ '-bis (hydroxy- phenyl) diisopropylbenzenes belong.
  • Particularly preferred bisphenols belonging to the abovementioned connecting groups are bisphenol-A (2,2-bis (4-hydroxyphenyl) propane), tetraalkylbisphenol-A, 4,4- (meta-phenylenediisopropyl) diphenol (bisphenol M), 4,4- (para-phenylene-diisopropyl) diphenol, l, l-bis- (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane (BP-TMC) and optionally their mixtures.
  • bisphenol-A 2,2-bis (4-hydroxyphenyl) propane
  • bisphenol M 4,4- (meta-phenylenediisopropyl) diphenol
  • BP-TMC 4,4- (para-phenylene-diisopropyl) diphenol
  • BP-TMC l-bis- (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane
  • Homopolycarbonates based on bisphenol-A and copolycarbonates based on the monomers bisphenol-A and l, l-bis (4-hydroxyphenyl) -3,3,5-trimethylcyclohexane are particularly preferred.
  • the bisphenol compounds to be used according to the invention are reacted with carbonic acid compounds, in particular phosgene, or diphenyl carbonate or dimethyl carbonate in the melt transesterification process.
  • Polyester carbonates are obtained by reacting the bisphenols already mentioned, at least one aromatic dicarboxylic acid and optionally carbonic acid equivalents.
  • aromatic dicarboxylic acids are, for example, phthalic acid, terephthalic acid, isophthalic acid, 3,3'- or 4,4'-diphenyldicarboxylic acid and
  • Benzophenone A part, up to 80 mol%, preferably from 20 to 50 mol% of the carbonate groups in the polycarbonates can be replaced by aromatic dicarboxylic acid ester groups.
  • Inert organic solvents used in the interfacial process are, for example, dichloromethane, the various dichloroethanes and chloropropane compounds, carbon tetrachloride, trichloromethane, chlorobenzene and chlorotoluene; chlorobenzene or dichloromethane or mixtures of dichloromethane and chlorobenzene are preferably used.
  • phase interface reaction can be accelerated by catalysts such as tertiary amines, in particular N-alkylpiperidines or onium salts.
  • catalysts such as tertiary amines, in particular N-alkylpiperidines or onium salts.
  • Tributylamine, triethylamine and N-ethylpiperidine are preferably used.
  • the catalysts mentioned in DE A 42 38 123 are used.
  • branching agents allow the polycarbonates to be deliberately and controlled branched.
  • Some suitable branching agents are: phloroglucin, 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) -hepten-2; 4,6-dimethyl-2,4,6-tri- (4-hydroxyphenyl) heptane; 1,3,5-tri- (4-hydroxyphenyl) benzene; 1,1,1-tri- (4-hydroxyphenyl) ethane; Tri- (4-hydroxyphenyl) -phenylmethane; 2,2-bis- [4,4-bis- (4-hydroxyphenyl) cyclohexyl] propane; 2,4-bis (4-hydroxyphenyl-isopropyl) -phenol; 2,6-bis (2-hydroxy-5'-methylbenzyl) -4-methylphenol; 2- (4-hydroxyphenyl) -2- (2,4-dihydroxyphenyl) propane; Hexa- (4- (4-hydroxyphenyl-isoprop
  • phenols such as phenol, alkylphenols such as cresol and 4-tert-butylphenol, chlorophenol, bromophenol, cumylphenol or mixtures thereof are preferably used in amounts of 1-20 mol%, preferably 2-10 mol% per mol of bisphenol. Phenol, 4-tert-butylphenol and cumylphenol are preferred.
  • Chain terminators and branching agents can be added to the syntheses separately or together with the bisphenol.
  • Additives suitable as UV absorbers in the sense of the invention are e.g. in
  • EP A 0 839 623 page 23f
  • EP A 0 500 496 page 2, connection I, and page 6f, chapter 2).
  • UV absorbers which are particularly suitable according to the invention for the molding compositions to be used are those compounds which, owing to their absorption capacity below 400 nm, are able to effectively protect polycarbonate from UV light.
  • Suitable UV absorbers are in particular the compounds of the formula (I) described in WO 99/05205
  • R 1 and R 2 are identical or different and are H, halogen, C ⁇ -C ⁇ 0 alkyl, C5-C10-cycloalkyl, C 7 -C ⁇ 3 aralkyl, C 6 -C ⁇ 4 aryl, -OR 5 or - ( CO) -OR 5 mean with R 5 - H or CC 4 alkyl,
  • R 3 and R 4 are likewise the same or different and are H, CrC-alkyl, C 5 -C 6 - cycloalkyl, benzyl or C 6 -C ⁇ 4 -aryl,
  • n 1, 2, 3 or 4,
  • R 1 , R 2 , m and n have the meaning given for formula (II),
  • p is also an integer from 0 to 3
  • q is an integer from 1 to 10
  • R 3 and R 4 have the meaning given for formula (II).
  • Represent triazines such as 2,4-bis (2,4-dimethylphenyl) -6- (2-hydroxy-4-n-octyloxy- ⁇ henyl) -l, 3,5-triazine (CYASORB® UV-1164) or 2 - (4,6-Diphenyl-l, 3,5-triazin-2-yl) -5- (hexyl) oxy-phenol (Tinuvin® 1577).
  • a particularly preferred UV absorber is 2,2-methylenebis (4- (1, 1, 3, 3-tetramethylbutyl) -6- (2H-benzotriazol-2-yl) phenol), which is commercially available under the name Tinuvin® 360 or Adeka Stab ® LA 31 is sold.
  • the UN absorbers mentioned in EP 0500496 AI are also suitable.
  • the UV absorber Uvinul 3030 from BASF AG obtained in WO 96/15102, Example 1 can also be used.
  • UV absorbers suitable according to the invention are hydroxy-benzotriazoles, such as
  • the UV absorbers are preferred in amounts of in each case between 0.001% by weight and 20% by weight, preferably 0.01% by weight and 1% by weight, preferably between 0.1-1% by weight and very particularly preferably between 0.2 and 0.6 wt .-% used.
  • preferably 2 to 11% by weight, preferably 3 to 10% by weight and very particularly preferably between 3 and 7% by weight are used.
  • Suitable stabilizers for the polycarbonates for the molding compositions according to the invention are, for example, phosphines, phosphites or Si-containing stabilizers and further compounds described in EP-A 0 839 623 (page 21, chapter 1).
  • Examples include triphenyl phosphites, diphenylalkyl phosphites, phenyl dialkyl phosphites, tris (nonylphenyl) phosphite, tetrakis (2,4-di-tert-butylphenyl) -4,4'-biphenylene diphosponite and triaryl phosphite.
  • Triphenylphosphine and tris (2,4-di-tert-butylphenyl) phosphite are particularly preferred.
  • the molding composition according to the invention can also contain 0.01 to 0.5% by weight of the (partial) esters of monohydric to hexavalent alcohols, in particular glycerol, pentaerythritol or Guerbet alcohols.
  • Monohydric alcohols are, for example, stearyl alcohol, palmityl alcohol and Guerbet alcohols.
  • a dihydric alcohol is glycol.
  • a trihydric alcohol is, for example, glycerin.
  • Tetravalent alcohols are, for example, pentaerythritol and mesoerythritol.
  • pentavalent alcohols are arabite, ribite and xylitol.
  • Hexahydric alcohols are, for example, mannitol, glucitol (sorbitol) and dulcitol.
  • the esters are the monoesters, diesters, triesters, tetraesters, optionally pentaesters and hexaesters or their mixtures, in particular statistical mixtures, of saturated, aliphatic C 10 to C 36 monocarboxylic acids and optionally hydroxy monocarboxylic acids, preferably with saturated, aliphatic C 14 to C. 3 -monocarboxylic acids and optionally hydroxy-monocarboxylic acids.
  • the commercially available fatty acid esters in particular pentaerythritol and glycerol, may contain ⁇ 60% different partial esters due to the manufacturing process
  • Saturated, aliphatic monocarboxylic acids with 10 to 36 carbon atoms are, for example, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid,
  • Hydroxystearic acid Hydroxystearic acid, arachic acid, behenic acid, lignoceric acid, cerotinic acid and montanic acids.
  • Preferred saturated, aliphatic monocarboxylic acids with 14 to 22 carbon atoms are, for example, myristic acid, palmitic acid, stearic acid, hydroxystearic acid,
  • Saturated, aliphatic monocarboxylic acids such as palmitic acid, stearic acid and hydroxystearic acid are particularly preferred.
  • saturated, aliphatic to C 36 -carboxylic acids and the fatty acid esters to be used according to the invention are either known as such or can be prepared by processes known from the literature.
  • pentaerythritol fatty acid esters are those of the particularly preferred monocarboxylic acids mentioned above. Esters of pentaerythritol and glycerol with stearic acid and palmitic acid are particularly preferred.
  • Esters of Guerbet alcohols or of glycerol with stearic acid and palmitic acid and optionally hydroxystearic acid are also particularly preferred.
  • the molding composition according to the invention can furthermore contain organic dyes, inorganic color pigments, fluorescent dyes and particularly preferably optical brighteners.
  • All starting materials and solvents used for the synthesis of the molding compositions according to the invention which can be contaminated from their production and storage with corresponding impurities, such as particles, gel bodies, ions, solvent residues, monomer or oligomer residues or other compounds should be used as cleanly as possible.
  • the individual constituents can be mixed in a known manner both successively and simultaneously, both at room temperature and at elevated temperature.
  • the additives are incorporated into the molding compositions according to the invention, in particular the antistatic agents and UN absorbers and other additives mentioned above, in a known manner by mixing polymer granules with the additives at temperatures of about 200 to 350 ° C. in conventional units such as internal kneaders, single-screw extruders and twin-screw extruders, for example by melt compounding or melt extrusion or by mixing the solutions of the polymer with solutions of the additives in suitable organic solvents such as CH 2 Cl 2 , haloalkanes, halogen aromatics, chlorobenzene and xylenes and subsequent evaporation of the solvents in a known manner.
  • suitable organic solvents such as CH 2 Cl 2 , haloalkanes, halogen aromatics, chlorobenzene and xylenes and subsequent evaporation of the solvents in a known manner.
  • the proportion of additives in the molding composition can be varied within wide limits and depends on the desired properties of the molding composition.
  • the total proportion of additives in the molding composition is approximately up to 30% by weight, preferably 0.1 to 12% by weight, based on the weight of the molding composition.
  • the invention thus relates to moldings and extrudates which have been produced using the molding compositions according to the invention.
  • the molding compounds can be used to produce foils, solid plastic sheets and multi-skin sheets (e.g. double skin sheets, triple-skin sheets etc.) and corrugated sheets.
  • the layer systems according to the invention also include those which have an additional cover layer on one or both sides with the molding compositions according to the invention with an increased UV absorber content.
  • the layer systems according to the invention allow the production of shaped bodies and extrudates on which no dust figures are deposited over time, in particular of plates and shaped bodies made from them, e.g. Glazing for winter gardens, bus stops, machine covers, billboards, signs,
  • Extruders for producing the core layer and cover layer (s) are connected to a coextrusion adapter.
  • the adapter is constructed in such a way that the melt forming the cover layers) is adhered to the melt of the core layer as a thin layer.
  • the multilayer melt strand thus produced is then brought into the desired shape (multi-wall or solid sheet) in the nozzle connected subsequently.
  • the melt is then cooled in a known manner by means of calendering (solid plate) or vacuum calibration (multi-wall plate) under controlled conditions and then cut to length. If necessary, a tempering furnace can be installed after the calibration to eliminate stresses.
  • the adapter attached in front of the nozzle the nozzle itself can also be designed such that the melts are brought together there.
  • Makrolon ® 2808 linear bisphenol-A polycarbonate from Bayer AG, Leverkusen with a melt flow index (MFR) of 10 g / 10 min at 300 ° C and 1.2 kg load
  • MFR melt flow index
  • 2- (2nd '-Hydroxy-3' - (2-butyl) -5'- (tert-butyl) phenyl) benzotriazole 0.1% octadecyl-3- (3 ', 5'-di-tert-butyl-4' -hydroxyphenyl) propionate and 1.5% dimethyldiisopropylammonium perfluorobutylsulfonate (Ex. 1) compounded as described below.
  • Base material was Makrolon ® 3103 (linear bisphenol-A polycarbonate of Bayer AG Leverkusen having a melt flow rate (MFR) of 6.5 g / 10 min at 300 ° C and 1, 2 kg load) are used. This was coextruded with those in Table 1 specified compounds based on Makrolon ® 3103 (linear bisphenol-A polycarbonate from Bayer AG, Leverkusen with a melt flow index (MFR) of 6.5 g / 10 min at 300 ° C and 1.2 kg load).
  • MFR melt flow rate
  • the compounds were produced as follows: at 310 ° C. and 80 rpm, the UV absorber and the antistatic according to Table 1 were incorporated into the polycarbonate on a twin-screw extruder (ZSK 32, Werner & Pfleiderer) and the extrudate was then granulated.
  • the thickness of the coex layer is approximately 50 ⁇ m in each case.
  • Rectangular sheets are then sprayed from this granulate at a melt temperature of 300 ° C (155 mm x 75 mm x 2 mm) and subjected to the dust test.
  • the facility consists of
  • the polycarbonate granulate of the base material is fed to the hopper of the main extruder, the coextrusion material to that of the coextruder.
  • the respective material is melted and conveyed in the respective plasticizing system cylinder / screw. Both material melts are brought together in the coex adapter and form a bond between the rollers after leaving the nozzle and cooling.
  • the other facilities are used for transport, surface protection and cutting the extruded sheets to length.
  • the dust-repellent effect was tested as follows and evaluated with a standard evaluation: In order to investigate the dust accumulation in the laboratory test, the sprayed plates are exposed to an atmosphere with whirled up dust. For this purpose, a 2-1 beaker with an 80 mm long magnetic stirring bar with a triangular cross section with dust (coal dust / 20 g activated carbon, Riedel-de
  • the desired combination of dust repellency and little impairment of the optical properties can only be achieved with the layer systems according to the invention. Furthermore, the layer systems according to the invention show excellent weather stability.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne des systèmes stratifiés à base de matières moulées thermoplastiques ainsi que des objets produits au moyen desdits systèmes stratifiés, en particulier des plaques, qui présentent une tendance moindre à fixer la poussière à leur surface et qui ne se chargent pas électrostatiquement lorsqu'ils sont produits et utilisés.
EP02735232A 2001-04-20 2002-04-08 Systemes multicouches comportant des matieres moulees antistatiques Withdrawn EP1404520A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10119416A DE10119416A1 (de) 2001-04-20 2001-04-20 Mehrschichtsysteme enthaltend antistatische Formmassen
DE10119416 2001-04-20
PCT/EP2002/003853 WO2002085613A2 (fr) 2001-04-20 2002-04-08 Systemes multicouches comportant des matieres moulees antistatiques

Publications (1)

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EP1404520A2 true EP1404520A2 (fr) 2004-04-07

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US (1) US20030031844A1 (fr)
EP (1) EP1404520A2 (fr)
JP (1) JP2004525004A (fr)
KR (1) KR20030090757A (fr)
CN (1) CN1518497A (fr)
BR (1) BR0209044A (fr)
CA (1) CA2444606A1 (fr)
DE (1) DE10119416A1 (fr)
IL (1) IL158323A0 (fr)
MX (1) MXPA03009480A (fr)
RU (1) RU2003133922A (fr)
TW (1) TW584598B (fr)
WO (1) WO2002085613A2 (fr)

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US7341784B2 (en) * 2004-09-10 2008-03-11 General Electric Company Light management film and its preparation and use
DE102005040313A1 (de) * 2005-08-24 2007-03-01 Bayer Materialscience Ag Lichtstreuende Formkörper mit hoher Lichttransmission und verbesserter Antistatik
DE102005040315A1 (de) * 2005-08-24 2007-03-01 Bayer Materialscience Ag Lichtstreuende antistatische Kunststoffzusammensetzung mit hoher Helligkeit und deren Verwendung in Flachbildschirmen
DE102005047615A1 (de) * 2005-10-05 2007-04-12 Bayer Materialscience Ag Lichtstreuende Kunststoffzusammensetzung mit hoher Helligkeit und deren Verwendung in Flachbildschirmen
DE102005047614A1 (de) * 2005-10-05 2007-04-12 Bayer Materialscience Ag Licht streuende Kunststoffzusammensetzung mit hoher Helligkeit und deren Verwendung in Flachbildschirmen
US20070203271A1 (en) * 2006-01-27 2007-08-30 Alms Gregory R Coating process for thermoplastics
EP2288946A2 (fr) * 2008-06-03 2011-03-02 3M Innovative Properties Company Microstructures comprenant des sels de polyalkyl (azote ou phosphore) fluoroalkyl sulfonyle d onium
EP2133202A1 (fr) * 2008-06-11 2009-12-16 Bayer MaterialScience AG Montage de feuille optique multicouche doté de propriétés améliorées et son utilisation
EP2157133A1 (fr) * 2008-08-19 2010-02-24 Bayer MaterialScience AG Feuilles dotées de propriétés améliorées
US9570211B2 (en) * 2008-08-27 2017-02-14 Covestro Llc Transparent thermoplastic composition with improved electrical conductivity in the melt
DE102009043509A1 (de) 2009-09-30 2011-03-31 Bayer Materialscience Ag Polycarbonatzusammensetzung mit verbesserter Thermostabilität
DE102009043511A1 (de) * 2009-09-30 2011-03-31 Bayer Materialscience Ag UV-stabile Polycarbonat-Zusammensetzung mit verbesserten Eigenschaften
AU2013277753B2 (en) 2012-06-21 2015-04-09 3M Innovative Properties Company A static dissipating laser engravable film

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CA2444606A1 (fr) 2002-10-31
MXPA03009480A (es) 2004-05-24
KR20030090757A (ko) 2003-11-28
WO2002085613A3 (fr) 2003-02-13
US20030031844A1 (en) 2003-02-13
TW584598B (en) 2004-04-21
CN1518497A (zh) 2004-08-04
DE10119416A1 (de) 2002-10-24
BR0209044A (pt) 2004-08-10
RU2003133922A (ru) 2005-05-10
IL158323A0 (en) 2004-05-12
JP2004525004A (ja) 2004-08-19
WO2002085613A2 (fr) 2002-10-31

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