Abstract: An opaque lightly coloured thermoplastic moulding composition is made having improved long-term weathering stability as well as excellent optical appearance, especially high colour brilliance. The thermoplastic moulding compositions include the combination of an inorganic pigment and an organic soluble dye, wherein the inorganic pigment is selected from specific mixed metal oxides and mixed metal oxosulfides. A process is also made to produce the coloured moulding composition. Colouring compositions, such as masterbatches, which can be used for producing the coloured thermoplastic moulding composition are further developed. Opaque lightly coloured formed articles are finally made from the thermoplastic moulding composition, for example injection moulded articles and extruded articles.

Abstract: A thermoplastic moulding composition has improved weathering resistance. A process for producing the thermoplastic moulding composition involves providing a thermoplastic polymer and adding at least one colouring preparation. Injection moulded parts and extruded parts can be composed of the thermoplastic moulding composition.

Abstract: A process can be used for manufacturing a coloured moulding composition with an improved optical appearance and a particularly high thermal stability. The process involves providing a thermoplastic polymer and adding a colouring preparation, or a liquid composition or a master batch containing the colouring preparation. Injection moulded parts and extruded parts can be composed of the coloured moulding composition.

Abstract: Light scattering polymeric compositions have improved scattering efficiency and improved mechanical properties. The compositions include a polymeric matrix material and at least two different kinds of scattering particles uniformly dispersed therein.

Abstract: Light scattering polymeric compositions have improved scattering efficiency and improved mechanical properties. The compositions include a polymeric matrix material and at least two different kinds of scattering particles uniformly dispersed therein.

Abstract: The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics.

Abstract: The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics.

Abstract: The present invention relates to weathering-resistant, colored moldings made of poly(alkyl)(meth)acrylate with improved gloss and resistance to mechanical influences acting on the surface of the molding, in particular with improved wipe resistance and improved scratch resistance, and also to molding compositions for producing the same.

Abstract: The present invention relates to weathering-resistant, colored moldings made of poly(alkyl) (meth)acrylate with improved gloss and resistance to mechanical influences acting on the surface of the molding, in particular with improved wipe resistance and improved scratch resistance, and also to molding compositions for producing the same.

Abstract: The invention relates to a method for coloring thermoplastic molding compounds, preferably a polymethyl(meth)acrylate molding compound, using novel aqueous colorant preparations. The invention further relates to a novel water-based colorant preparation.

Abstract: The invention relates to the use of polyalkyl(meth)acrylate bead polymers with an average particle size V50 that ranges between 30 and 70 ?m for improving the stress cracking resistance of moulding materials containing polyalkyl(meth)acrylate. The invention also relates to moulding materials comprising: a) at least 50 wt. % of an impact resistance modifying agent, which contains at least one polyalkyl(meth)acrylate phase; b) at least 8 wt. % of a polyalkyl(meth)acrylate bead polymer with an average particle size V50 that ranges between 30 and 70 ?m; and c) between 0 and 42 wt. % of a polyalkyl(meth)acrylate with a molecular weight ranging between 20,000 and 350,000 g/mol, whereby the wt. % of the components a) to c) amounts to 100 wt. %, and to moulded bodies that can be obtained from said materials.

Abstract: The invention relates to a polymer mixture, comprising a) a polymer matrix which is composed of a (meth)acrylate (co)polymer or of a mixture of (meth)acrylate (co)polymers with a Vicat softening point VSP (ISO 306-B50) of at least 104° C. and/or of a (meth)acrylimide (co)polymer, b) an impact modifier which is based on crosslinked poly(meth)acrylates and which does not have covalent bonding to the polymer matrix a), c) from 1 to 15% by weight of plastics particles composed of crosslinked polymers based on polymethyl methacrylate, on polystyrene and/or on polysilicones. The polymer mixture can be used to obtain injection mouldings with matt surfaces and Vicat softening points VSPs (ISO 306-B50) of at least 90° C.

Abstract: The invention relates to an aqueous colorant preparation for coloring thermoplastic plastics.

Abstract: Composition for the production of mouldings having a matt and structured surface character, comprising a polymer matrix and crosslinked polymer particles, the polymer matrix comprising at least one acrylic polymer and the composition containing (i) first crosslinked polymer particles having a volume average of the particle size in the range from 30 ?m to 1500 ?m and (ii) second crosslinked polymer particles having a volume average of the particle size of less than 30 ?m, the difference between the refractive index of the first polymer particles and the refractive index of the polymer matrix, measured in each case at 25° C., being less than 0.015 as an absolute value and the difference between the refractive index of the second polymer particles and the refractive index of the polymer matrix, measured at 25° C., being greater than or equal to 0.015 as an absolute value.

Abstract: Moulding composition, comprising, in each case based on the total weight of the moulding composition, A) from 83% by weight to 99.5% by weight of a polymer matrix which is composed of at least one (meth)acrylimide (co)polymer, B) from 0.5% by weight to 17.0% by weight of ceramic beads, where the melt volume index MVR of the moulding composition, measured to ISO 1133 at 260° C. using 10 kg, is from 1.0 cm3/10 min to 20.0 cm3/10 min. The moulding composition can be used for production of mouldings with a velvet-matt and preferably rough surface.

Abstract: Moulding composition, comprising, based in each case on the total weight of the moulding composition, A) from 49.5% by weight to 99.5% by weight of a polymer matrix which is composed of a (meth)acrylate (co)polymer or of a mixture composed of (meth)acrylate (co)polymer, B) from 0.5% by weight to 15.0% by weight of ceramic beads, where the melt volume index MVR, measured to ISO 1133 for 230° C. and 3.8 kg, of the moulding composition is from 0.1 cm3/10 min to 5.0 cm3/10 min. The moulding composition can be used for production of mouldings with a velvet-matt and preferably rough surface.

Abstract: Process for preparation of bead polymers whose average particle size is in the range from 1 ?m to 40 ?m, by dispersing and polymerizing a polymerizable composition in an aqueous phase, where the dispersion stabilized by an aluminium compound is prepared at a shear rate ?103 s?1. A polymerizable composition is used here which, in each case based on its total weight, comprises a) more than 50.0% by weight of at least one compound of the formula (I), ?where the radicals 1R to 6R have definitions according to the Description, b) from 0.1% by weight to 10.0% by weight of at least one crosslinking agent and c) less than 49.9% by weight of at least one compound of the formula (II) ?where the radicals R and 7R to 9R have definitions according to the Description The bead polymers prepared according to the inventive process are particularly suitable for production of mouldings with light-scattering properties.

Abstract: Process for preparation of bead polymers whose average particle size is in the range from 1 ?m to 40 ?m, by dispersing and polymerizing a polymerizable composition in an aqueous phase, where the dispersion stabilized by an aluminium compound is prepared at a shear rate ?103 s?1. A polymerizable composition is used here which, in each case based on its total weight, comprises a) more than 50.0% by weight of at least one compound of the formula (I), where the radicals 1R to 6R have definitions according to the Description, b) from 0.1% by weight to 10.0% by weight of at least one crosslinking agent and c) less than 49.9% by weight of at least one compound of the formula (II) where the radicals R and 7R to 9R have definitions according to the Description The bead polymers prepared according to the inventive process are particularly suitable for production of mouldings with light-scattering properties.

Abstract: The invention relates to the use of polyalkyl(meth)acrylate bead polymers with an average particle size V50 that ranges between 30 and 70 ?m for improving the stress cracking resistance of moulding materials containing polyalkyl(meth)acrylate. The invention also relates to moulding materials comprising: a) at least 50 wt. % of an impact resistance modifying agent, which contains at least one polyalkyl(meth)acrylate phase; b) at least 8 wt. % of a polyalkyl(meth)acrylate bead polymer with an average particle size V50 that ranges between 30 and 70 ?m; and c) between 0 and 42 wt. % of a polyalkyl(meth)acrylate with a molecular weight ranging between 20,000 and 350,000 g/mol, whereby the wt. % of the components a) to c) amounts to 100 wt. %, and to moulded bodies that can be obtained from said materials.

Abstract: The invention relates to a polymer mixture, comprising a) a polymer matrix which is composed of a (meth)acrylate(co)polymer or of a mixture of (meth)acrylate(co)polymers with a Vicat softening point VSP (ISO 306-B50) of at least 104° C. and/or of a (meth)acrylimide(co)polymer, b) an impact modifier which is based on crosslinked poly(meth)acrylates and which does not have covalent bonding to the polymer matrix a), c) from 1 to 15% by weight of plastics particles composed of crosslinked polymers based on polymethyl methacrylate, on polystyrene and/or on polysilicones. The polymer mixture can be used to obtain injection mouldings with matt surfaces and Vicat softening points VSPs (ISO 306-B50) of at least 90° C.