WO2012130594A1 - Éléments transparents ou semi-transparents à transmission solaire totale réduite ou à réflexion solaire totale accrue - Google Patents

Éléments transparents ou semi-transparents à transmission solaire totale réduite ou à réflexion solaire totale accrue Download PDF

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Publication number
WO2012130594A1
WO2012130594A1 PCT/EP2012/054184 EP2012054184W WO2012130594A1 WO 2012130594 A1 WO2012130594 A1 WO 2012130594A1 EP 2012054184 W EP2012054184 W EP 2012054184W WO 2012130594 A1 WO2012130594 A1 WO 2012130594A1
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WIPO (PCT)
Prior art keywords
meth
acrylate
inorganic
pigment
particles
Prior art date
Application number
PCT/EP2012/054184
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German (de)
English (en)
Inventor
Elisabeth Clamer
Sven SCHRÖBEL
Rudolf Blass
Ernst Becker
Wolfgang Scharnke
Original Assignee
Evonik Röhm Gmbh
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Publication of WO2012130594A1 publication Critical patent/WO2012130594A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • 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
    • C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
    • C08K5/0041—Optical brightening agents, organic pigments
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters

Definitions

  • the present invention relates to transparent components with reduced total solar transmission or increased
  • Plastic moldings made of, for example, polyvinyl chloride (PVC) use.
  • PVC polyvinyl chloride
  • IR reflectors bleach chromate, molybdate red, molybdate orange, chromium oxide green, antimony sulfide, cadmium sulfoselenide, cadmium sulfide,
  • Anthrachinonschwarzpigment anthraquinone dark blue pigment, monoazo pigment or phthalocyanines used. Some of these pigments are no longer allowed today.
  • As the material for the cover layer an unspecified PMMA is described.
  • the applied protective layer is colored so opaque that in the IR As high a reflection as possible and in the UV range the lowest possible permeability is achieved.
  • the goal is achieved by using at least one IR-reflecting black or color pigment.
  • For the darker color pigments no predominantly IR-absorbing pigments are used.
  • the pigment used in the examples is titanium dioxide or anthraquinone black
  • WO 00/24817 (Ferro) describes corundum hematite structures in the oxides of aluminum, antimony, bismuth, boron, chromium, cobalt, gallium, indium, iron, lanthanum, lithium, magnesium, manganese, molybdenum, neodymium, nickel, niobium , Silicon, tin are involved.
  • DE 102004058083 covers covered, IR-reflecting poly (meth) acrylate molding compositions which can be applied as an IR barrier layer to other plastic moldings, and their use for the production of, for. As dark colored car roofs with reduced heating rate disclosed.
  • EP 548822 describes translucent, IR-reflecting bodies. However, these bodies have the
  • the IR-reflecting particles must be aligned parallel to the surface of a base material and applied in a coating layer. This process is expensive. Furthermore, the IR-reflecting effect is reduced or lost if the coating layer is damaged.
  • the components or molding compositions are either colored and have a
  • Transmission VLT Vehicle Light Transmission
  • the components of the present invention allow parts of an object, such. B. a vehicle or a building, in particular z. As a sunroof, windows,
  • Sun visors, etc. produce, which reduce the heating of the interior object and still let visible sunlight through shine through.
  • the prior art which is also intended to prevent the heating of rooms or object parts by IR-reflecting layers or IR-reflecting object components,
  • the systems according to the invention combine the ability to reduce the heating with the additional
  • the IR-reflecting particles are in the outermost layer of the components, so that thereby also a heating of the component itself can be prevented.
  • the present invention therefore allows a great variety of design.
  • the design diversity of the components according to the invention itself i. the shape or coloring, can also be used before heating up
  • dyed components are made, which allow a good view, but appear dark and glossy in supervision.
  • components can be obtained which transmit as much light as possible in the visible light range, provide IR protection and nevertheless appear very little milky and cloudy. This is particularly important when the components of the invention
  • the components of the invention also have a good
  • the subject of the present invention are therefore components, characterized in that
  • They have at least one layer containing from 0.00001 to 0.5% by weight, based on the mass of this layer, of inorganic IR-reflecting particles,
  • They contain at least one poly (meth) acrylate
  • Layer which may be identical or different to the above-described layer containing the IR-reflecting inorganic particles, comprise
  • the inorganic IR-reflecting particles are isotropic particles
  • the components are either colored and thereby have a light transmission VLT of 5 to 70%, preferably 5 to 60%, particularly preferably 5 to
  • the subject of the present invention is further
  • Transmission VLT of 5 to 70% preferably 5 to more preferably 5 to 50% and very particularly preferably 10 to 40 o or is not colored and a transmission VLT of 10 to 85 preferably 10 to 70%.
  • the components according to the invention can preferably be part of an object, for. B.
  • Part of a vehicle body or a building Part of a vehicle body or a building.
  • Components are shaped as shaped bodies in such a way that they shield other ob ect components to the sunny side and thus bring about the desired IR protective effect.
  • An example of this would be an aperture pointing to another part of an object, e.g. B. a window frame is plugged.
  • the components according to the invention are chemically or physically connected to other objects or object parts, for. B. by lamination, gluing, etc. and thus a composite component with IR protective effect arises.
  • a composite component with IR protective effect arises.
  • An embodiment of the invention would be a component in the form of a film, which is glued onto another object.
  • the term component (s) is within the scope of the present
  • Invention is not limited to moldings, films, films and laminates. From the described properties and
  • the inorganic IR-reflecting pigments used according to the invention are isotropic particles.
  • it means particles which do not align themselves in the direction of the shear field in a liquid during shearing action. Examples of these are powders of inorganic oxides as known from conventional
  • Non-smooth means that the surface or parts of it have corners and edges.
  • spherical means that the diameter of the particles at the thickest point
  • Diameter of the particles at the thinnest point by a maximum of 400%, preferably by a maximum of 200%, more preferably by a maximum of 100% and most preferably by a maximum of 50%.
  • nonisotropic particles i. Anisotropic particles in the context of the present invention may, for.
  • platelet-shaped IR-reflecting particles in particular mica particles be.
  • Colored components or molding compositions in the context of the present invention are those which, in addition to the inorganic, IR-reflecting particles, which themselves may also be pigments, additionally comprise other pigments and / or dyes, in particular organic pigments and / or dyes. This means that
  • (meth) acrylates includes methacrylates and
  • the components according to the invention consist of a single layer.
  • This may preferably be a shaped body, for. B. a plate or a deformed plate, more preferably with a thickness of 0.15 to 100 mm, preferably 0.15 to 50 mm, more preferably 0.15 to 25 mm or a film having a thickness of 15 to 150 ⁇ act.
  • An essential component in the polymer matrix of this single layer are poly (meth) acrylates.
  • Poly (meth) acrylates can be present as homo- or as copolymers and are known per se in the art. These polymers are generally by radical
  • Preferred poly (meth) acrylates are obtainable by polymerization of monomer mixtures containing at least 20% by weight, in particular at least 60% by weight and more preferably at least 80% by weight, based in each case on the total weight of the monomers to be polymerized, of methyl methacrylate exhibit.
  • these monomer mixtures can be more
  • methyl acrylate for example, methyl acrylate, ethyl (meth) acrylate,
  • Aryl (meth) acrylates such as benzyl (meth) acrylate or
  • Cycloalkyl (meth) acrylates such as 3-vinylcyclohexyl (meth) acrylate, bornyl (meth) acrylate;
  • Hydroxyalkyl (meth) acrylates such as 3-hydroxypropyl (meth) acrylate, 3,4-dihydroxybutyl (meth) acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate; Glycol di (meth) acrylates such as 1,4-butanediol (meth) acrylate, (meth) acrylates of
  • Ether alcohols such as tetrahydrofurfuryl (meth) acrylate
  • Vinyloxyethoxyethyl (meth) acrylate Amides and nitriles of (meth) acrylic acid, such as N- (3-)
  • (Meth) acrylates such as trimethyloylpropane tri (meth) acrylate.
  • monomers that are copolymerizable with methyl methacrylate and the aforementioned (meth) acrylates include, but are not limited to, 1-alkenes such as hexene-1, heptene-1; branched alkenes such as vinylcyclohexane, 3,3-dimethyl-1-propene, 3-methyl-1-diisobutylene, 4-methylpentene-1; Acrylonitrile; Vinyl esters, such as vinyl acetate; Styrene, substituted styrenes having an alkyl substituent in the side chain, such as. B. a-methylstyrene and a-ethylstyrene, substituted styrenes with a
  • Alkyl substituents on the ring such as vinyl toluene and p-methylstyrene, halogenated styrenes such as monochlorostyrenes, dichlorostyrenes, tribromostyrenes and
  • Heterocyclic vinyl compounds such as 2-vinylpyridine, 3-vinylpyridine, 2-methyl-5-vinylpyridine, 3-ethyl-4-vinylpyridine, 2, 3-dimethyl-5-vinylpyridine,
  • Vinylcarbazole 4-vinylcarbazole, 1-vinylimidazole, 2-methyl-1-vinylimidazole, N-vinylpyrrolidone, 2-vinylpyrrolidone, N-vinylpyrrolidine, 3-vinylpyrrolidine, N-vinylcaprolactam, N-vinylbutyrolactam, vinyloxolane, vinylfuran, vinylthiophene, vinylthiolane, Vinylthiazoles and hydrogenated vinylthiazoles, vinyloxazoles and hydrogenated vinyloxazoles; Vinyl and
  • Isoprenyl ether Maleic acid derivatives such as maleic anhydride, methylmaleic anhydride, maleimide, methylmaleimide; and serve, such as
  • the comonomers are used in an amount of from 0 to 60% by weight, preferably 0 to 40% by weight and more preferably 0 to 20% by weight, based on the total weight of all monomers in the monomer mixture, the Compounds can be used individually or as a mixture.
  • Various poly (meth) acrylates can be used which differ, for example, in molecular weight or in the monomer composition.
  • Homo- and / or copolymers to be used according to the invention as matrix polymers can vary within wide limits, the molecular weight usually being based on the
  • Application purpose and the manufacturing method of the layer is adjusted. However, it is preferably in the range between 20,000 and 1,000,000 g / mol, preferably 50,000 to 500,000 g / mol and particularly preferably 80,000 to 300,000 g / mol, without this being intended to limit this.
  • the polymer matrix may also be a polymer blend of
  • polymers to modify the properties of the plastic Contain polymers to modify the properties of the plastic.
  • Other polymers include, but are not limited to, PA, PVF, PVDF, ASA, polyacrylonitriles, polystyrenes, polyethers, polyesters, polycarbonates and polyvinyl chlorides. These polymers can be used individually or as a mixture, wherein copolymers which are derivable from the aforementioned polymers, the molding compositions can be added.
  • SAN styrene-acrylonitrile polymers
  • Particularly preferred styrene-acrylonitrile polymers can be obtained by the polymerization of mixtures consisting of 70 to 92% by weight.
  • the molding compositions or acrylic resins which can be used according to the invention for the preparation of the polymer matrix can contain conventional additives of all kinds. These include, but are not limited to, antistatics, antioxidants, mold release agents, flame retardants, lubricants, dyes,
  • the components according to the invention contain a plastic
  • Impact modifier in particular in a proportion of 0.1 to 35 wt .-%, preferably 0.1 to 15 wt .-%, particularly preferably 0.5 to 10 wt .-% and most preferably 1 to 6 wt .-% , in each case based on the mass of the component or the molding compound or the acrylic resin
  • Elastomer particles a core with a soft
  • the components of the invention are preferably made of a molding material, for. B. by extrusion.
  • Components according to the invention by extrusion comprise as poly (meth) acrylate a poly (alkyl) (meth) acrylate, very particularly preferably as homopolymers or copolymers of
  • Methyl methacrylate Mixtures and blends
  • alkyl are branched or unbranched, cyclic or linear alkyl radicals having 1 to 20, preferably 1 to 8, particularly preferably 1 to 4 carbon atoms, which may be substituted by functional groups or heteroatoms such as 0, S or N. Preferred it is a methyl, ethyl, butyl or
  • the molding compound is a mixture comprising
  • the copolymer (I) of the mixture is polymerized to 80 to 100, preferably from 90 to 100, in particular from 99 to 100 wt .-% of methyl methacrylate, styrene and
  • the copolymer (I) consists exclusively of free-radically
  • Combinations of the three monomers are included, which add up to 100 wt .-%. From the o.g. Quantities can be theoretically put together three combinations that give less or more than 100 wt .-%, but these are not part of the present invention.
  • the copolymer (I) has a solution viscosity in chloroform at 25 ° C. (ISO 1628 - Part 6) of less than or equal to 55, preferably less than or equal to 50, in particular 40 to 55, particularly preferably 43 to 50 ml / g.
  • Copolymer (I) preferably has a molecular weight Mw
  • Weight average in the range of 50,000 to 250,000 g / mol and particularly preferably in the range of 70,000 to 120,000 g / mol (determination of Mw by means of Gel permeation chromatography with reference to
  • the (co) polymer (II) of the mixture is polymerized from 80 to 100 wt .-%, preferably 90 to 99.5 wt .-% of methyl methacrylate units and optionally 0 to 20 wt .-%, preferably 0.5 to 10 wt % of further monomers copolymerizable with methyl methacrylate, preferably C 1 to C 4
  • Alkyl (meth) acrylates in particular methyl acrylate
  • the (co) polymer (II) consists of 95 to 99.5% by weight of methyl methacrylate units and 0.5 to 5% by weight, preferably 1 to 4% by weight, of one of the above mentioned, with methyl methacrylate radically copolymerizable monomers, especially methyl acrylate.
  • the (co) polymer (II) has a solution viscosity in
  • Chloroform at 25 ° C (ISO 1628 - Part 6) of 50 to 55 ml / g, preferably 52 to 54 ml / g.
  • (Co) polymer (II) preferably has a molecular weight Mw (weight average) of 80,000 to 200,000 g / mol, preferably 90,000 to 200,000 g / mol and particularly preferably 100,000 to 150,000 g / mol. The determination of the molecular weight Mw is as described for copolymer (I).
  • the (co) polymer (II) may preferably have a
  • Vicat softening temperature VET (ISO 306-B50) of at least 107, preferably from 108 to 114 ° C and / or a
  • the copolymers (I) and the (co) polymer (II) are preferably in a ratio of copolymers (I) to (co) polymer (II) of 95: 5 to 5: 95, preferably 20: 80 to 80:20,
  • the molding compound is a polymer mixture containing the following components:
  • Component A) preferably corresponds to that described above in the first preferred embodiment
  • components A), B) and / or C), taken alone can be understood as individual polymers as well as mixtures of polymers, wherein A), B) and / or C) add up to 100 wt .-%.
  • Component B) is an optional component which may be present alone or together with component C).
  • Component B) may coincide in the monomer composition with component A).
  • Component B) is a high molecular weight
  • Solution viscosity in chloroform at 25 ° C (ISO 1628 - Part 6) of greater than or equal to 65, preferably 68 to 75 ml / g.
  • This may have a molecular weight Mw (weight average) of 100,000 to 300,000 g / mol and particularly preferably in the
  • Component C) is an optional component that can be used alone or in conjunction with component B).
  • Component C) preferably corresponds to (Co) polymer (II) described above for the first preferred embodiment.
  • the components A) to C) are particularly preferably present in the following proportions, which add up to 100 wt .-%.
  • Component A) 50 to 90, preferably 60 to 88 wt .-%.
  • the polymer matrix additionally comprises a
  • Impact modifier D In this case, the components A) to D) are present in the following proportions, which add up to 100 wt .-%.
  • Component A) 25 to 75, preferably 40 to 60, in particular 45 to 57 wt .-%, component B) and / or C): 10 to 50, preferably 12 to 44th
  • a blend of a relatively high molecular weight (meth) acrylate (co) polymer can be used according to the invention as the molding composition.
  • the matrix material used is a poly (alkyl) (meth) acrylate as described in DE 102010030927. To avoid repetition, the subject matter of these applications is hereby explicitly incorporated in the description of the present application
  • the components according to the invention can also be produced in a casting or injection molding process, preferably from a syrup. Monomer compositions for these processes are described in EP10159342. to
  • a non-impact modified syrup comprising the following components:
  • the acrylic resin has the initiators necessary for the polymerization.
  • the components i) to iv) and the initiators correspond to the compounds which are also used for the preparation of suitable polymethyl methacrylate molding compositions.
  • the syrup can also be designed impact-modified.
  • the syrup may preferably have one or more of the following components:
  • wt .-% of components a) to h) refer to the total mass of components a) to h) and not on the total mass of the syrup according to the invention, since this yes, inter alia, the inorganic IR-reflecting particles and optionally other components contains.
  • Components a) to h) are selected so that they add up to 100% by weight.
  • Components b) to h) are known to the person skilled in the art.
  • Particularly preferred stabilizers here are HALS stabilizers. In the context of the present invention, there are no particular
  • the component according to the invention may have a multilayer structure, eg. B. a laminate, a multilayer molding, a
  • all but one or more layer (s) may comprise a poly (meth) acrylate and / or inorganic IR-reflecting particles.
  • Poly (meth) acrylate and at least one inorganic IR-reflecting particles and optionally an organic pigment and / or dye are contained in one and the same layer. Where one or more of said components may additionally be included in other layers.
  • At least the outermost layer applied in the later application of the sunny side contains a poly (meth) acrylate.
  • Functional surface layer comprising a poly (meth) acrylate, inorganic IR-reflecting particles and optionally organic pigments and / or dyes.
  • the present invention additionally comprises one or more carrier and possibly intermediate layers on the side facing away from the sun side
  • Multilayered construction with a functional layer which in the later application, in contrast to
  • facing outermost layer represents and the one
  • the present invention additionally comprises a cover layer, which in the later application represents the outermost layer facing the sunny side and optionally one or more intermediate layers between the cover layer and the cover layer
  • the cover, intermediate and support layers also consist of a colored or uncolored
  • Plastic is the amount of organic pigment
  • the transmission VLT of the component is in the range of 5 to 70%.
  • the cover, the intermediate and the carrier layers can in each case from other polymers but also from the same
  • polymers may be the same or different from the polymers of the functional and the functional top layer.
  • the polymers are preferably transparent plastics, more preferably plastics selected from the group consisting of polyamide (PA), polyvinyl fluoride (PVF),
  • PVDF Polyvinyl difluoride
  • PC polycarbonate
  • ASA alkyl acrylate-styrene-acrylonitrile terpolymer
  • SAN styrene-acrylonitrile copolymer
  • PVDF Polyvinyl difluoride
  • PC polycarbonate
  • ASA alkyl acrylate-styrene-acrylonitrile terpolymer
  • SAN styrene-acrylonitrile copolymer
  • meth poly (meth) acrylate, blends and copolymers thereof.
  • Variants of execution form two, there are at least one layer, usually at least the
  • Poly (meth) acrylate layer This layer usually comprises poly (meth) acrylates as described above in the single-layer structure.
  • the carrier layer (s) or the intermediate layer (s) preferably have the same or greater thickness than the one
  • the carrier layer is a layer
  • thermoplastic polymers in particular polyesters,
  • Polyamides ASA, styrene-acrylonitrile (SAN), thermoplastic polyurethanes, polycarbonates, acrylonitrile-butadiene-styrene terpolymer (ABS), PVF, PVDF, cycolefin (co) polymers (COP or COC) or mixtures of these polymers, or
  • the component according to the invention may comprise further layers, such as e.g.
  • adhesive layers are preferably layers having a thickness of between 1 and 100 ⁇ m.
  • the adhesive layer may be an adhesive system or an adhesion promoter system. In particular, you can
  • Polyurethane adhesives butadiene-styrene copolymers, or butadiene and styrene-containing terpolymers, polyacrylates, epoxies, unsaturated polyester resins or other adhesives or adhesion promoters may be used.
  • Carrier and cover layer are Carrier and cover layer.
  • the components comprise 0.00001 to 0.5% by weight, preferably 0.0001 to 0.25% by weight, particularly preferably 0.0001 to 0.1% by weight, very particularly preferably 0.001 to 0, 05 wt .-% and particularly preferably 0.001 to 0.03 wt .-%, inorganic, IR-reflecting particles, each based on the mass of the respective layer containing these particles.
  • These inorganic, IR-reflecting particles are preferably metal oxides, particularly preferably having a particle size between 50 nm and 5 ⁇ m, very particularly preferably between 100 nm and 3.0 ⁇ m and particularly preferably between 200 nm and 2.5 ⁇ .
  • Inorganic, IR-reflecting particles preferably have a monomodal particle size distribution.
  • IR infrared
  • Moldings can be achieved significantly higher total solar reflections (TSR) in sunlight than with Shaped bodies which consist of or are coated with conventionally dark-colored polymers.
  • TSR total solar reflections
  • the inorganic IR-reflecting particles are particularly preferably in the functional top layer or the functional layer (see embodiments 2a and 2b above).
  • embodiments are also possible which comprise both a functional and a functional cover layer (embodiment 2c). Also from the present
  • Embodiments include embodiments 2d, in which the inorganic IR-reflecting pigments are contained not only in the functional and / or the functional top layer, but also in one or more of the above-mentioned. further layers.
  • the inorganic IR-reflecting pigments are not in a poly (meth) acrylate layer but in another layer of the component which does not comprise a poly (meth) acrylate. This can e.g. then be the case when the particles are in the adhesive layer or the non (meth) acrylate-containing topcoat.
  • Other not explicitly listed combinations are not explicitly listed combinations
  • Layers comprising IR-reflective pigments and one or more of the above-mentioned.
  • Polymers or polymer blends are readily apparent to those skilled in the art from the overall context of the present invention and are also included.
  • the inorganic IR-reflecting particles are preferably in the cover layer or the functional top layer and especially preferably the entire amount of the particles in the cover or functional top layer.
  • the inorganic IR-reflecting particles used according to the invention are randomly distributed, preferably homogeneously dispersed, in the respective layers. Due to the special shape, a good distribution can be achieved. In contrast to platelet-shaped particles according to EP 0548822, the particles used according to the invention need not be spatially aligned, which represents a significant simplification of production. Another advantage that results from the particle shape and can be improved by a suitable particle size is that the inventive
  • the IR-reflecting particles are IR-reflecting pigments. It was found that by using pigments of the classes (see Table 1) Table 1:
  • the color of the components according to the invention can, as already indicated, be wholly or partly caused by inorganic IR-reflecting pigments but also wholly or partly by coloring with other, preferably organic, pigments or dyes.
  • pigments or dyes selected from the group consisting of perylene dyes,
  • Anthraquinone dyes azo dyes, quinone dyes, quinophthalone dyes, methine dyes,
  • the pigments or dyes are preferred in the following
  • organic dyes or pigments can be between 0 and 3.0 wt .-%, preferably between 0 and 2.5 wt .-% and
  • the components have a light transmission VLT of 5 to 70%, preferably 5 to 60%, particularly preferably 5 to 50% and very particularly preferably 10 to 40%.
  • the light transmission VLT must not be as high in this case as in the non-colored version, since the coloring usually a darkening of the spaces located behind the component to be achieved, but at the same time still enough residual brightness should remain.
  • the light transmission VLT is therefore preferably from 10 to 85%, preferably 25 to 75% and particularly preferably 45 to 65%.
  • the setting of the light transmission VLT can be achieved and controlled in addition to the type and amount of IR-reflecting particles whose shape and size and the choice of transparent polymers and which other additives, in particular dyes in the
  • Hematite Chromium Green Black, Chromium Iron Oxide, Iron Chromite Brown are preferred as inorganic IR-reflecting particles
  • Moldings according to the invention additionally contain other additives such as IR absorbers, UV absorbers, surface-active additives stabilizers and mold release agents.
  • additives such as IR absorbers, UV absorbers, surface-active additives stabilizers and mold release agents.
  • IR absorbers particularly preferably inorganic IR absorbers, in particular should be measured with an average particle size of 2 to 150 nm, preferably 3 to 100 nm, particularly preferably 5 to 90 nm by means of dynamic light scattering.
  • the content of IR absorbers is preferably 0.0001 to 0.5 wt .-% based on the layer in which the IR absorbers are located.
  • the production of the components according to the invention can be carried out by known methods such as extrusion, casting,
  • components of the invention used molding compounds or acrylic resins, the
  • produced standard test specimens are either colored and have a transmission VLT of 5 to 70%, preferably 5 to 60%, particularly preferably 5 to 50% and very particularly preferably 10 to 40% or are not colored and a transmission VLT of 10 to 85%, preferably have 10 to 70%.
  • molding compositions or acrylic resins may also contain IR absorbers, UV absorbers, surface-active additives, stabilizers and mold release agents.
  • the poly (meth) acrylate corresponds to the material defined above for the components.
  • Plastic moldings can be used in many areas,
  • the moldings are preferred in Façade, building roof, vehicle roof panels and modules or vehicle attachments used. Another one
  • the preferred field of application are glazings.
  • the preferred field of application are glazings.
  • Plastic molding according to the invention also on a
  • Substrate can be applied. These substrates may be, for example, glass, plastic, concrete, masonry, wood or metal. In this case, there is one
  • IR-reflective surface coating e.g. in the construction industry.
  • Plastic moldings are also brought together with other plastics to plastic composite materials.
  • the plastic moldings are applied using conventional methods such as back-foaming, back molding, lamination, gluing or pressing on the second plastic molding.
  • back-foaming back molding
  • lamination lamination
  • gluing gluing
  • pressing on the second plastic molding.
  • the average particle size, the inorganic IR-reflecting particles or otherwise used in the context of the present invention particles is determined by means of laser diffraction according to ISO 13320-1. These are in each case the mean particle size before incorporation into a molding composition or syrup.
  • Transmission of components (Visual Light Transmission: VLT)
  • the transmission VLT of the components is determined by means of a
  • Spectrometer with integrating sphere (Varian Cary 5000 with Labsphere DRA-2500 integrating sphere) according to DIN EN 410 and DIN 5036, Part 3.
  • the color coordinates are determined in accordance with DIN 5033 parts 2, 3 and 7 (observer 2 °,
  • Extrusion dies are produced as follows: a) Tools used for extrusion:
  • the heating plates are switched on at the controller and the temperature is set to 250 ° C. 14g molding compound are filled in the upper chamber of the extrusion die and the Tool placed on the preheated hot plate.
  • Temperature sensor is inserted into a mounting hole in the press ring, the signal generator function on a
  • Extruding tool removed from the heating plates and placed in the hydraulic press. Here, the tool is immediately pressed with a pressure of lOOkN, so that a part of the melt flows from the upper chamber into the lower chamber.
  • the total solar transmission is based on measurements described above
  • the total energy transmittance g also referred to as Solar Heat Gain Coefficient SHGC describes the total energy that passes through a single or multiple glazing. It is described in DIN EN 410.
  • the molding compound and the inorganic pigment are premixed as a dry blend and placed on a two-roll mill
  • the resulting rolled sheet is - as described above - to a 3 mm thick

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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)

Abstract

La présente invention concerne des éléments transparents à transmission de lumière solaire totale réduite ou à réflexion solaire totale accrue, leur utilisation ainsi que des matières moulables pour leur fabrication.
PCT/EP2012/054184 2011-03-28 2012-03-12 Éléments transparents ou semi-transparents à transmission solaire totale réduite ou à réflexion solaire totale accrue WO2012130594A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011006185.1 2011-03-28
DE102011006185A DE102011006185A1 (de) 2011-03-28 2011-03-28 Transparente bzw. semitransparente Bauteile mit reduzierter Gesamtsolartransmission bzw. erhöhter Gesamtsolarreflexion

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WO2012130594A1 true WO2012130594A1 (fr) 2012-10-04

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DE (1) DE102011006185A1 (fr)
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Citations (12)

* Cited by examiner, † Cited by third party
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DE2605325A1 (de) 1976-02-11 1977-08-18 Dynamit Nobel Ag Verfahren zum schutz von pvc-oberflaechen gegen sonnenlichteinwirkungen
DE2719170A1 (de) 1977-04-29 1978-11-02 Dynamit Nobel Ag Verfahren zum schutz von pvc- schichten gegen sonnenlichteinwirkungen und bauteil auf pvc-basis
EP0548822A2 (fr) 1991-12-21 1993-06-30 Röhm Gmbh Matériau réfléchissant les rayons infra-rouge
WO2000024817A1 (fr) 1998-10-26 2000-05-04 Ferro Corporation Pigments de couleur reflechissant les rayons infrarouges
EP1470169A1 (fr) 2002-01-29 2004-10-27 Röhm GmbH & Co. KG Procede de production de polymethylmethacrylate resilient et polymethylmethacrylate (pmma) resilient correspondant
WO2005108486A1 (fr) 2004-05-05 2005-11-17 Röhm Gmbh Matieres façonnables pour la production de corps façonnes presentant une resistance elevee aux intemperies
DE102004058083A1 (de) 2004-12-01 2006-06-08 Röhm GmbH & Co. KG Gedeckt eingefärbte, infrarotreflektierende Kunststoffformmasse
EP1673409A1 (fr) 2003-10-17 2006-06-28 Röhm GmbH & Co. KG Melange polymere et son utilisation pour des pieces moulees par injection
EP1844102A1 (fr) 2005-01-24 2007-10-17 Röhm GmbH Matiere moulable poly(meth)acrylate resistante aux chocs a thermostabilite elevee
DE102006029613A1 (de) * 2006-06-26 2007-12-27 Röhm Gmbh Transparenter Kunststoff-Verbund
WO2011144429A1 (fr) * 2010-05-20 2011-11-24 Evonik Röhm Gmbh Matière à mouler ou système d'enduction (sans pmma) à propriétés de réflexion des infrarouges, en combinaison avec une couche de finition ou un film contenant du pmma
DE102010030927A1 (de) 2010-07-05 2012-01-05 Evonik Röhm Gmbh Verbundwerkstoff aus einem zellulosehaltigen Material und einem Kunststoff

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6400442B1 (en) 1996-08-28 2002-06-04 Polaroid Corporation Optical system for use in a photographic printer

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2605325A1 (de) 1976-02-11 1977-08-18 Dynamit Nobel Ag Verfahren zum schutz von pvc-oberflaechen gegen sonnenlichteinwirkungen
DE2719170A1 (de) 1977-04-29 1978-11-02 Dynamit Nobel Ag Verfahren zum schutz von pvc- schichten gegen sonnenlichteinwirkungen und bauteil auf pvc-basis
EP0548822A2 (fr) 1991-12-21 1993-06-30 Röhm Gmbh Matériau réfléchissant les rayons infra-rouge
WO2000024817A1 (fr) 1998-10-26 2000-05-04 Ferro Corporation Pigments de couleur reflechissant les rayons infrarouges
EP1470169A1 (fr) 2002-01-29 2004-10-27 Röhm GmbH & Co. KG Procede de production de polymethylmethacrylate resilient et polymethylmethacrylate (pmma) resilient correspondant
EP1673409A1 (fr) 2003-10-17 2006-06-28 Röhm GmbH & Co. KG Melange polymere et son utilisation pour des pieces moulees par injection
WO2005108486A1 (fr) 2004-05-05 2005-11-17 Röhm Gmbh Matieres façonnables pour la production de corps façonnes presentant une resistance elevee aux intemperies
DE102004058083A1 (de) 2004-12-01 2006-06-08 Röhm GmbH & Co. KG Gedeckt eingefärbte, infrarotreflektierende Kunststoffformmasse
EP1844102A1 (fr) 2005-01-24 2007-10-17 Röhm GmbH Matiere moulable poly(meth)acrylate resistante aux chocs a thermostabilite elevee
DE102006029613A1 (de) * 2006-06-26 2007-12-27 Röhm Gmbh Transparenter Kunststoff-Verbund
WO2011144429A1 (fr) * 2010-05-20 2011-11-24 Evonik Röhm Gmbh Matière à mouler ou système d'enduction (sans pmma) à propriétés de réflexion des infrarouges, en combinaison avec une couche de finition ou un film contenant du pmma
DE102010030927A1 (de) 2010-07-05 2012-01-05 Evonik Röhm Gmbh Verbundwerkstoff aus einem zellulosehaltigen Material und einem Kunststoff

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