Abstract: To provide a resin composition which can allow for production of a molded product causing less generation of formaldehyde and having an excellent metallic appearance, and furthermore which can allow for suppression of contamination in a mold and a molding machine during molding. A resin composition containing a polyacetal resin (A), an aluminum pigment (B), and a pearl-based pigment (C), in which the aluminum pigment (B) includes an aluminum particle, and the aluminum particle has a volume average particle size (D50) of 3 to 100 ?m and the content thereof is 0.01 to 15 parts by mass per 100 parts by mass of the polyacetal resin (A).

Abstract: Disclosed herein is an artificial marble chip having a color gradient from a surface thereof to inside.

Abstract: Embodiments of monolayer and multilayer films which provide an improved matte surface are disclosed. The monolayer film or an outer layer of the multilayer films comprise greater than 50% by weight of a first polyethylene having a density of at least 0.935 g/cm3 and a melt index (I2) of 0.9 g/10 minutes or less, and less than 50% by weight of a second polyethylene having a density less 0.935 g/cm3 and a melt index (I2) of 20 g/10 minutes or less, wherein the film exhibits an external gloss of less than 20 units when measured at 45 according to ASTM D2457 and a haze greater than 60% when measured according to ASTM D1003.

Abstract: New adhesives and methods for preparing them are disclosed that include polylactic acid irradiated with gamma radiation, such as by a Co60 source. Irradiation times are used that improve the characteristics of the adhesive materials. Generally, the dose of radiation is from about 5 kGy to about 200 kGy of gamma irradiation. The adhesives generally have melting temperatures in the range of at least about 140 to about 148° C. such that they can be conveniently used in conventional glue guns and other glue equipment. The disclosed adhesives can provide bond strengths in the range of about 1,600 psi or more to about 2,500 psi or more. The disclosed adhesives can include a crosslinking agents. They can be used to join a wide range of substrates including wood, metal, plastic, ceramic, glass or combinations of substrates. They can be conveniently prepared by heating a polylactic acid (polylactic acid) preparation and mixing the molten polylactic acid with one or more crosslinkers when present.

Abstract: The present invention relates to a method for producing a multicoat paint system on a metallic substrate, in which a basecoat or a plurality of directly successive basecoats are produced directly on a metallic substrate coated with a cured electrocoat, a clearcoat is produced directly on the one basecoat or the uppermost of the plurality of basecoats, and then the one or more basecoats and the clearcoat are jointly cured, and wherein at least one basecoat material used for production of the basecoats comprises at least one aqueous dispersion comprising at least one copolymer, said copolymer being preparable by (i) initially charging an aqueous dispersion of at least one polyurethane, and then (ii) polymerizing a mixture of olefinically unsaturated monomers in the presence of the polyurethane from (i), in which (a) a water-soluble initiator is used, (b) the olefinically unsaturated monomers are metered in such that a concentration of 6.

Abstract: The invention provides a resin composition capable of achieving excellent chromaticity and a sufficient degree of cure, an adhesive tape, and a method for producing an adhesive tape. The adhesive tape has at least one layer formed by making a resin composition undergo a polymerization reaction, the adhesive composition including: an acrylic monomer; a photopolymerization initiator; and a coloring agent which has a mean volume particle diameter of not less than 1 ?m and not more than 20 ?m and in which a pigment is encapsulated in a resin, in which the coloring agent is contained so that the pigment content is not less than 0.25 wt % and not more than 1.0 wt %. This allows aggregation of the coloring agent to be prevented and inhibition of the polymerization reaction to be prevented, and therefore, excellent chromaticity and a sufficient degree of cure can be achieved.

Abstract: Polymer compositions are described that contain at least two different immiscible phases for producing molded articles having a swirl-like or marble-like appearance. The first phase, for instance, may contain one or more polyoxymethylene polymers. The second phase, on the other hand, contains one or more polymers that together have a melting point that is from about 5° to about 30° different than the melting point of the polyoxymethylene polymer. In one embodiment, the second phase may contain a thermoplastic elastomer, a glycol-modified polyethylene terephthalate, or a polyimide and may have a melting point that is higher than the melting point of the polyoxymethylene polymer. The second phase is present in the polymer composition in relatively low amounts, such as in amounts less than about 5% by weight. The second phase can contain a high concentration of colorants that creates a contrast of colors when the molded article is produced.

Abstract: Provided are methods for coating plastic substrates with an aqueous coating composition comprising at least one organic polymer as binder, the coating composition being applied to the surface of the plastic substrate and being subsequently cured, wherein the plastic substrate is pretreated before the coating composition is applied, the pretreatment comprising the two following separate steps in the order stated: (A) heat-treating a plastic substrate at an ambient temperature in the range from 60° C. to 160° C. for a period in the range from 1 minute to 20 minutes, (B) flaming the surface of the plastic substrate pretreated as per step (A), there being a period of up to 90 minutes between the ending of step (A) and the beginning of step (B). Additionally, provided are coated plastic substrates that have been coated by the methods of the invention.

Abstract: A decorative panel comprising at least a plate-shaped carrier and a decorative layer disposed thereon and which is characterized in that the plate-shaped carrier comprises at least partially a thermoplastic composition modified with an elastomer powder by means of melt blending, wherein the thermoplastic composition includes at least one thermoplastic matrix material and at least one fine-grained, cross-linked and powdery elastomer material incorporated into the matrix material. A method for producing the foregoing decorative panel comprising applying a decorative layer to the plate-shaped carrier.

Abstract: A carrier for an optoelectronic unit has a carrier material which includes polyethylene terephthalate which contains reflector particles and a further filler. Methods for the production of the optoelectronic unit and the carrier are also disclosed.

Abstract: A system and method are provided for producing variable pearlescent image elements or portions on image receiving media substrates using a variable digital data offset lithographic architecture which provides for varying lithographic images between cycles of a marking device. Pearlescent inks are provided with a solid particle pearlescent pigment components in a proportion of at least 10% by weight suspended in solution in an ink composition. Pearlescent inks are provided with a solid particle pearlescent pigment components having particle sizes in excess of ten microns suspended in solution in the ink composition. The disclosed systems and methods provide for variable pearlescent image elements or portions to be formed on an image receiving medium substrate separate from, or in combination with, other ink image elements or portions applied using other inks in a single device, and/or in a single pass of the image receiving media substrates through an image forming system.

Abstract: This invention provides a moldable engineered stone composition comprising an ethylenically unsaturated acrylic polymer capable of being covalently crosslinked, a mineral particulate, and an ionic crosslinking agent which forms ionic bonds within the syrup of unsaturated acrylic polymer via unreacted acid groups, causing thickening prior to curing and prior to the formation of covalent bonds via the double bonds of the polymer chain. The composition is then capable of being extruded and molded in a press. Articles formed by curing the composition and methods for producing the composition are also disclosed.

Abstract: Present invention relates to surfactants derived from epoxidized oils and compositions thereof. Particularly this invention describes surfactants derived from epoxidized oils covalently attached to water soluble polymers via thioether bond forming linker and formulations thereof.

Abstract: An artificial silica marble comprises a matrix and a line pattern portion. The line pattern portion comprises fine lines having a width of about 50 to about 500 ?m and forms a web- or net-like pattern. The line pattern portion divides or partitions the artificial silica marble into a plurality of irregularly shaped pattern portions to form an amorphous pattern in the cross section of the artificial silica marble.

Abstract: The present invention relates to an acrylic artificial marble having a granite pattern and a method of manufacturing the same, which can provide a natural marble effect by mixing and molding two or more compounds having different colors and thus can obtain a granite pattern in which patterns of the two or more compounds are smoothly mixed, and which can obtain a desired pattern remarkably similar to a pattern of natural stone by using a multicolor chip sheet.

Abstract: An artificial marble includes unsaturated polyester resin (A), compound including silica (B), and luminescent pigment (C). An artificial marble according to a second embodiment includes about 70 to about 95% by weight of a non-luminescent base material (I) comprising unsaturated polyester resin (A), compound including silica (B), and organic/inorganic pigment (C) and about 5 to about 30% by weight of a luminescent amorphous pattern part (II) comprising unsaturated polyester resin (A), compound including silica (B), and luminescent pigment (D). An artificial marble according to a third embodiment includes unsaturated polyester resin (A), compound including silica (B), and amorphous luminescent chip (C).

Abstract: The present invention relates to pigment granules which are distinguished by the fact that they are based on a support material, where the support material is coated with one or more flake-form effect pigments by means of an adhesion promoter. The pigment granules according to the invention are preferably used for the pigmentation of application media, in particular paints, plasters, lacquers, powder coatings and plastics, and in particular as scatter and effect granules, for example for the decoration of wallcoverings.

Abstract: The present invention relates to resin syrup, which comprises a high-molecular-weight acrylic material containing a carboxyl group, and comprises a room-temperature-curing initiator and a high-temperature-curing initiator, and it also relates to an artificial marble containing a hardened form of the resin syrup, and to a production method for the same. The present invention can provide resin syrup having outstanding curing efficiency and a viscosity suitable for press molding by a process such as maturation because of the inclusion of the high-molecular-weight acrylic material containing a carboxyl group, the room-temperature-curing initiator, and the high-temperature-curing initiator, and it can provide an artificial marble containing a hardened form of the resin syrup, and a production method for the same.

Abstract: Pigment granules including a support material which is coated with one or more flake-form effect pigments by means of an adhesion promoter. The effect pigments may be, for example, pearlescent pigments, interference pigments, metal-effect pigments, multilayered pigments having one or more transparent, semi-transparent or opaque layers, goniochromatic pigments, holographic pigments, coated BiOCL flakes, uncoated BiOCl flakes, and LCP pigments, and mixtures thereof. A process for the production of pigment granules includes mixing one or more flake-form effect pigments, a support material, at least one adhesion promoter, and optionally one or more additives simultaneously or successively with one another. The pigment granules may be used for the pigmenting of application media, in particular paints, plasters, coatings, powder coatings, plastics, and in particular as scatter and effect granules, for example for the decoration of wallcoverings.

Abstract: Pigment granules comprise one or more flake-form effect pigments, polymer particles or polymer particle mixtures, adhesion promoters, antioxidants and optionally additives. A process for the preparation of pigment granules comprises mixing one or more flake-form effect pigments, one or more polymer particles, at least one adhesion promoter, at least one antioxidant and optionally one or more additives with one another simultaneously or successively. The pigment granules may be used for the pigmentation of powder coatings, plastics and for the preparation of masterbatches. The pigment granules may be employed as a mixture with plastic powders or as a mixture with plastic granules for use in masterbatch applications.

Abstract: Disclosed are a new composite material and a process for synthesizing highly charged, highly monodisperse, core-shell particles with high refractive index cores, as well as stable, long lasting crystalline colloidal arrays (CCAs) formed thereof. A preferred embodiment of the core particle can be highly monodisperse zinc sulfide (ZnS) particles and a preferred embodiment of the shell can be highly charged polyelectrolytes. The CCAs formed thereof are charge stabilized photonic crystals that shows distinctive first and second order Bragg diffraction peaks whose locations vary over a wide spectral region from UV through visible to IR, with unusually strong intensity and broad band width due to the high index of refraction. These high refractive index particles are useful in applications such as optical filters, optical coatings, cosmetics and photonic crystals sensors and devices.

Abstract: An artificial stone slab comprises a plurality of coated lumps of composite stone material, wherein at least a first set of the plurality of coated lumps are substantially in contact with one another, and wherein at least a second set of the plurality of coated lumps are spaced apart by one or more fillers. An engineered stone slab comprises a plurality of coated lumps of composite stone material, wherein at least a portion of the coated lumps comprise an inner core having a first color and an outer layer having a second, different, color.

Abstract: The present invention provides marble chips produced by hardening or molding a resin composition including a binder and a reactive monomer, wherein the binder comprises a halogenated alkoxylated diacrylate oligomer. The marble chips of the present invention can be formed into a uniform pattern, so that an artificial marble made using the marble chips of the present invention may have an outer appearance and texture similar to that of engineered stone.

Abstract: A method of producing a synthetic composition having properties of marble includes blending a polymer resin with a stone gravel bit to form a mixture. The method also includes processing the mixture of polymer resin with the stone gravel bit to produce a synthetic marble composition through a polymerization of the mixture that is cast in a casting cell. Further, the method may include preparing a mold to form a casting cell, removing air bubbles from the mixture of polymer resin with the stone gravel bit to enhance a physical property of the synthetic marble material, casting the mixture in the casting cell, polymerizing the cast mixture through an autoclave polymerization of the mixture at a pressure ranging from 1 to 10 atmospheres and a temperature ranging from 50° to 100° C. to prepare the synthetic marble material composition, and curing the synthetic marble sheet in an oven.

Abstract: The invention relates to extruded polymeric sheet and articles with an appearance and a texture that can be varied to produce natural-looking variegated materials, that have a metallic or opalescent look. The appearance can simulate natural materials, such as granite, minerals, stone, metal ore. The extruded polymer sheet or article contains at least one polymer composite appearance layer having crosslinked polymer particles and metallic and/or pearlescent materials distributed in a thermoplastic matrix. The thermoplastic matrix can be pigmented or unpigmented. There extruded sheet or article has a transparent thermoplastic cap layer on the side facing the environment. The particle-containing layer can be coextruded in a multi-layer sheet that could include substrate layers and the cap layer.

Abstract: A method of producing a synthetic composition having properties of marble includes blending a polymer resin with a stone gravel bit to form a mixture. The method also includes processing the mixture of polymer resin with the stone gravel bit to produce a synthetic marble composition through a polymerization of the mixture that is cast in a casting cell. Further, the method may include preparing a mold to form a casting cell, removing air bubbles from the mixture of polymer resin with the stone gravel bit to enhance a physical property of the synthetic marble material, casting the mixture in the casting cell, polymerizing the cast mixture through an autoclave polymerization of the mixture at a pressure ranging from 1 to 10 atmospheres and a temperature ranging from 50° to 100° C. to prepare the synthetic marble material composition, and curing the synthetic marble sheet in an oven.

Abstract: The invention relates to articles, e.g., sheet metal, comprising surface coatings that have the appearance of polished stone and methods for making such articles.

Abstract: An artificial stone slab comprises a plurality of coated lumps of composite stone material, wherein at least a first set of the plurality of coated lumps are substantially in contact with one another, and wherein at least a second set of the plurality of coated lumps are spaced apart by one or more fillers. An engineered stone slab comprises a plurality of coated lumps of composite stone material, wherein at least a portion of the coated lumps comprise an inner core having a first color and an outer layer having a second, different, color.

Abstract: The present invention relates to an artificial marble comprising a base resin; and layer-separated chips containing a matrix resin and additives, all or part of said additives is present in a state forming layered-phase in said matrix resin through phase-separation by a difference of specific gravity between said additives and said matrix resin, and a method for preparing the same. In the present invention, phase-separation (layer separation) of the additives in the chip is induced by adding the additives having specific gravity different from the matrix resin constituting base of the chip to the matrix resin, and if necessary, a position of the chip in the artificial marble is controlled through high specific gravity treatment. Therefore, the present invention may provide an artificial marble having a texture close to a natural rock by embodying various effects such as pearl effect, metallic effect and 3-dimensional effect.

Abstract: A method and apparatus for producing a composite solid surface article are disclosed. The method includes feeding a first composition toward a mixing point and feeding solid particles toward the mixing point. The method further includes mixing at the mixing point the first composition and the solid particles fed to the mixing point to form a second composition, and transferring the second composition away from the mixing point. The method further comprises polymerizing the polymerizable compound in the second compound so as to form a curable composition comprising the solid particles. The apparatus includes a solid particle feeder, a slurry feeder and a blender configured to blend and transfer a mixture of the solid surface forming slurry and solid particles away from the blending area. The composite solid surface article produced using the method and apparatus contain particles with a size greater than 5 mm.

Abstract: An engineered stone slab has coated lumps of composite stone material, wherein at least a portion of the coated lumps comprise an inner core having a first property and an outer layer having a second property. The property may include color, texture, density, chemical composition, hardness, porosity or any combination thereof.

Abstract: Artificial marble, and system and method of producing artificial marble. A method of producing a stone slab comprises: placing into a frame a plurality of coated lumps of composite stone material; removing substantially all air among the plurality of lumps; pressing the content of said frame; and curing the content of said frame to form the stone slab. An artificial stone slab comprises: a plurality of coated lumps of composite stone material which are substantially in contact with one another.

Abstract: A digital printing composition includes a carrier and a colorant. The carrier includes a hydrocarbon having at least one unsaturated bond. The hydrocarbon is configured to at least one of polymerize or crosslink in the presence of a charged species produced from a corona generator.

Abstract: Stone is formed from 5 to 60% by weight of polymerised, low-viscosity, transparent or low-colour-resin, 20 to 90% by weight of spherical alumina trihidrate Al2O3.3H2O containing less regular particles containing, advantageously 0 to 100% by weight of a transparent or translucent substitute of alumina trihydrate, and/or with 0 to 20% or pre-prepared particulate, filled resin of a chosen colour, and/or mineral particles and less than 2% by weight of luminophor. These individual components are mixed intensely whilst extracting included gaseous parts. Extraction is carried out whilst mixing, and/or after mixing, and/or before mixing. The mixture is initiated by introducing a starter and intensely mixing it into the mixture. The mixture is poured into a mould or onto a moving endless belt. The cured synthetic stone is removed from the mould or the hardened composite is taken off the the belt. Synthetic stone can be used in products as a light carrier.

Abstract: Disclosed are artificial marble and a method of manufacturing the same. The artificial marble has a natural aesthetic pattern like a flowing pattern to exhibit an equivalent or superior texture to that of natural marble. Further, as the artificial marble is prepared by placing an uncured marble resin sheet or block in a mold and pressing, the artificial marble has excellent mechanical strength and gloss and does not contain bubbles therein even after pressing at a low temperature and a low pressure.

Abstract: An ink jet printer ink comprising effect pigments and organic solvents or solvent mixtures, wherein the effect pigments comprise a) aluminum effect pigments having a mean thickness in a range of 10 to 100 ?m and a d98 value of the cumulative frequency distribution of the volume-averaged size distribution function of less than 15 ?m and/or b) pearlescent pigments having a d90 value of the cumulative frequency distribution of the volume-averaged size distribution in a range of 3.5 to 15 ?m. The viscosity of the ink jet printer ink is 1 to 50 mPa*s and the weight ratio of effect pigment to binder is 2 to 15. The invention further relates to the use of the ink jet printer ink.

Abstract: A sprayable granite-like coating composition useful for forming simulated stone surfaces, such as polished granite, which have improved fire resistance. The coating composition comprises gel resin matrix based on unsaturated crosslinkable polyester or acrylic resins, a free radical initiator for such resin, a hydrated inorganic salt, granules comprising thermoset resins or mixtures of thermoplastic and thermoset resins containing an inorganic filler and as a binding agent comprising the acrylate phosphate.

Abstract: The disclosure provides a highly loaded pearlescent pigment acrylic polymer slurry concentrate for use as a pearlescent pigment additive for an acrylic polymer sheet, comprising: (a) about 35 to about 45 wt. % of a pearlescent pigment based on the weight of the slurry concentrate; (b) about 1.0 to about 5.0 wt. % of a copolymer dispersant comprising a pigment functional component derived from a monomer selected from the group consisting of urethane or urea, epoxy-containing methacrylate esterified with aromatic carboxylic acids, aliphatic carboxylic acids, ammonia and primary, secondary and tertiary aliphatic amines, primary aromatic amines, and alkyl methacrylate; and a solvent functional component derived from a monomer selected from the group consisting of methyl methacrylate, butyl methacrylate, ethyl hexyl methacrylate, lauryl methacrylate, 1,2-propane diol, 6, hydroxyhexanoic acid, and 2-phenoxyethanol; (c) about 15 to about 45 wt. % of a (C1-C22) alkyl ((C1-C10)alk) acrylate; and (d) about 0.

Abstract: An artificial marble using chips made of a low specific gravity material via a lamination or crunch technique to realize a natural stone-like texture, and a process for preparing the artificial marble are disclosed. In one example, a high specific gravity layer containing a high specific gravity inorganic filler is laminated on a low specific gravity layer made of a low specific gravity material to form a flat board, and then, the flat board is crushed to produce chips. In another example, low specific gravity regions made of a low specific gravity material is coated with a high specific gravity slurry containing a high specific gravity inorganic filler, to produce crunch chips. Thereby, a low specific gravity material, which could not be used conventionally, is applicable to the artificial marble, so as to achieve an outer appearance remarkably similar to a texture of natural marbles.

Abstract: The present invention relates to an artificial marble comprising a base resin part; and a pearl stripe part which contains a matrix resin and pearls, and expresses stripes on said base resin part by the contained pearls and a process for preparing the same. The present invention may provide an artificial marble, which can embody higher grade appearance effects by concentrating pearl into the parts expressing stripes of the artificial marble and freely regulating color, quality of pearl and/or patterns of stripes, and a process for preparing the same.

Abstract: The present invention relates to an artificial chip having the texture of natural granite that includes 80 to 95 parts by weight of a core part and 5 to 20 parts by weight of a base resin, and an artificial marble including the same. According to the present invention, different colors and different sizes of cores are included in the artificial chip, and thus various colors can be simultaneously expressed in one chip, thereby preparing an artificial marble with the texture of natural granite.

Abstract: Pigment granules comprise one or more flake-form effect pigments, polymer particles or polymer particle mixtures, adhesion promoters, antioxidants and optionally additives. A process for the preparation of pigment granules comprises mixing one or more flake-form effect pigments, one or more polymer particles, at least one adhesion promoter, at least one antioxidant and optionally one or more additives with one another simultaneously or successively. The pigment granules may be used for the pigmentation of powder coatings, plastics and for the preparation of masterbatches. The pigment granules may be employed as a mixture with plastic powders or as a mixture with plastic granules for use in masterbatch applications.

Abstract: A method for the preparation of an engineered stone slab having coated lumps of composite stone material, the method comprising: scooping a first inorganic particulate material and a polymer material to produce lumps of composite stone material; mixing a second inorganic particulate material with the lumps to produce coated lumps; and adding one or more colorants to the first inorganic particulate material, to the second inorganic particulate material, or to both the first and second inorganic particulate materials.

Abstract: The invention relates to a process for manufacturing artificial stone boards especially suitable for outdoors comprising the phases of: grinding of the different materials with varied granulometry forming the filler, containing the resin with the catalyst and optionally the resin, a moulding and compaction phase of the obtained paste by vibro-compression under vacuum, and a hardening phase by polymerization of the resin by means of heat, ending with a cooling and polishing phase.

Abstract: An ink contains a plurality of pigments and a plurality of polymers. The plurality of pigments include C.I. pigment yellow 74 and C.I. pigment yellow 128. The plurality of polymers include a polymer A and a polymer B. The C.I. pigment yellow 74 is dispersed by the polymer A. The C.I. pigment yellow 128 is dispersed by the polymer B. A hydrogen bond parameter YA of a unit having the smallest hydrogen bond parameter of the constitutional units of the polymer A and a hydrogen bond parameter YB of a unit having the smallest hydrogen bond parameter of the constitutional units of the polymer B satisfy the relationship of YA<YB. A hydrogen bond parameter PA of the polymer A and a hydrogen bond parameter PB of the polymer B satisfy the relationship of PA<PB.

Abstract: A method of forming a polymeric building product having a color variation simulating natural building material includes introducing base color pellets having a base color into the barrel and providing a plurality of first colorant shots and second colorant shots. The first and second colorant shots are repeatedly introduced to the base color pellets in an alternating pattern. By repeatedly introducing at least one first colorant shot and at least one second colorant shot to the base color pellets in an alternating pattern, the barrel is in a constant state of purging. As one melted colorant shot is purged and replaced by another melted colorant shot, the melted composition includes streaks in the shape of swirls, wisps, etc., which advantageously creates color variations that simulate natural building material.

Abstract: An article of artificial stone includes a first resin matrix and a plurality of artificial stone chips in the first resin matrix. The specific gravity of the artificial stone chips is the same as or similar to the specific gravity of the first resin matrix.

Abstract: A pearlescent effect pigment having an opaque, dark or black color is disclosed. The black pearlescent pigment includes a platelet-shaped non-metal substrate, optionally an oxide layer, a template layer, and a metal layer. The pearlescent luster of the disclosed effect pigment is comparable to those of pure pearlescent effects. The disclosed method provides a cost-effective approach for the manufacturing of the disclosed effect pigment.

Abstract: The invention relates to pearlescent pigments comprising a platelet-shaped substrate, a metal oxide coating comprising a metal oxide layer having a refractive index of greater than 1.8 and a protective layer, wherein the protective layer comprises a metal oxide/hydroxide layer and optionally boroxide, applied to which is an organic aftercoat of an acrylic copolymer, to a method for producing said pigments and the use thereof. The outer layer provides a very good photo-stabilisation of the TiO2 coated platelet-shaped substrates, such as mica, combined with a good water resistance and an anti-yellowing performance.

Abstract: Stone is formed from 5 to 60% by weight of polymerised, low-viscosity, transparent or low-colour-resin, 20 to 90% by weight of spherical alumina trihidrate Al2O3.3H2O containing less regular particles containing, advantageously 0 to 100% by weight of a transparent or translucent substitute of alumina trihydrate, and/or with 0 to 20% or pre-prepared particulate, filled resin of a chosen colour, and/or mineral particles and less than 2% by weight of luminophor. These individual components are mixed intensely whilst extracting included gaseous parts. Extraction is carried out whilst mixing, and/or after mixing, and/or before mixing. The mixture is initiated by introducing a starter and intensely mixing it into the mixture. The mixture is poured into a mould or onto a moving endless belt. The cured synthetic stone is removed from the mould or the hardened composite is taken off the the belt. Synthetic stone can be used in products as a light carrier.