Abstract: A method for producing a polymer from a first component and a second component using a reactor (50) offers technical advantages, wherein reaction heat produced in the reactor (50) is discharged via a boiling cooler (40) by supplying gaseous vapors produced in the reactor (50) to the boiling cooler (40). A product flow containing condensed vapors is returned to the reactor (50) from the boiling cooler (40) via a separation vessel (60), and an aqueous phase is separated from the product flow in the separation vessel (60). A system is provided for producing a polymer from a first component and a second component, comprising a reactor (50) and a boiling cooler (40) for discharging reaction heat produced in the reactor (50). A separation vessel (60) is arranged between the boiling cooler (40) and the reactor (50) such that a product flow containing condensed vapors is returned to the reactor (50) from the boiling cooler (40) via the separation vessel (60).

Abstract: A method for producing a polymer from a first component and a second component using a reactor (50) offers technical advantages, wherein reaction heat produced in the reactor (50) is discharged via a boiling cooler (40) by supplying gaseous vapors produced in the reactor (50) to the boiling cooler (40). A product flow containing condensed vapors is returned to the reactor (50) from the boiling cooler (40) via a separation vessel (60), and an aqueous phase is separated from the product flow in the separation vessel (60). A system is provided for producing a polymer from a first component and a second component, comprising a reactor (50) and a boiling cooler (40) for discharging reaction heat produced in the reactor (50). A separation vessel (60) is arranged between the boiling cooler (40) and the reactor (50) such that a product flow containing condensed vapors is returned to the reactor (50) from the boiling cooler (40) via the separation vessel (60).

Abstract: The invention relates to a method for polymerizing acrylates using a reactor (50). Reaction heat produced in the reactor (50) is discharged via a boiling cooler (40) in that gaseous vapors produced in the reactor (50) are supplied to the boiling cooler (40), and condensed vapors are returned to the reactor (50) from the boiling cooler (40). At least one component containing acrylate is at least partly added via the boiling cooler (40) and reaches the reactor (50) via the boiling cooler (40). The invention additionally relates to a system for polymerizing an acrylate, comprising a reactor (50) and a boiling cooler (40) for discharging reaction heat produced in the reactor (50). The boiling cooler (40) has at least one filling opening (46) for supplying at least one component containing acrylate.

Abstract: A method for producing a polymer from a first component and a second component using a reactor (50) offers technical advantages, wherein reaction heat produced in the reactor (50) is discharged via a boiling cooler (40) by supplying gaseous vapors produced in the reactor (50) to the boiling cooler (40). A product flow containing condensed vapors is returned to the reactor (50) from the boiling cooler (40) via a separation vessel (60), and an aqueous phase is separated from the product flow in the separation vessel (60). A system is provided for producing a polymer from a first component and a second component, comprising a reactor (50) and a boiling cooler (40) for discharging reaction heat produced in the reactor (50). A separation vessel (60) is arranged between the boiling cooler (40) and the reactor (50) such that a product flow containing condensed vapors is returned to the reactor (50) from the boiling cooler (40) via the separation vessel (60).

Abstract: The invention relates to a method for producing a polymer from a first component and a second component by means of a reactor (50), wherein reaction heat in the reactor (50) is discharged via an evaporative cooler (40), wherein gaseous exhaust vapour in the reactor (50) is supplied to the evaporative cooler (40), and condensed exhaust vapour is guided from the evaporative cooler (40) back into the reactor (50). In this way, the first component and/or second component are supplied at least partially via the evaporative cooler (40) and moved from the evaporative cooler (40) into the reactor (50). The invention also relates to a system for producing a polymer, comprising a reactor (50) and an evaporative cooler (40) for discharging reaction heat in the reactor (50). In addition, the evaporative cooler (40) has at least one filling opening (46) for filling in the first and/or second component.

Abstract: Method for producing a thermoplastic molding compound (F) in an extruder, which has at least one screw having an outside diameter (D), wherein a thermoplastic component (TP) containing at least one thermoplastic polymer, a component (C) containing a graft polymer based in particular on butadiene and/or acrylate, and optionally a component (Z) containing additives are heated to a temperature of 200° C. to 280° C.

Abstract: The invention relates to a method for polymerizing acrylates using a reactor (50). Reaction heat produced in the reactor (50) is discharged via a boiling cooler (40) in that gaseous vapors produced in the reactor (50) are supplied to the boiling cooler (40), and condensed vapors are returned to the reactor (50) from the boiling cooler (40). At least one component containing acrylate is at least partly added via the boiling cooler (40) and reaches the reactor (50) via the boiling cooler (40). The invention additionally relates to a system for polymerizing an acrylate, comprising a reactor (50) and a boiling cooler (40) for discharging reaction heat produced in the reactor (50). The boiling cooler (40) has at least one filling opening (46) for supplying at least one component containing acrylate.

Abstract: The invention relates to a method for producing a polymer from a first component and a second component by means of a reactor (50), wherein reaction heat in the reactor (50) is discharged via an evaporative cooler (40), wherein gaseous exhaust vapour in the reactor (50) is supplied to the evaporative cooler (40), and condensed exhaust vapour is guided from the evaporative cooler (40) back into the reactor (50). In this way, the first component and/or second component are supplied at least partially via the evaporative cooler (40) and moved from the evaporative cooler (40) into the reactor (50). The invention also relates to a system for producing a polymer, comprising a reactor (50) and an evaporative cooler (40) for discharging reaction heat in the reactor (50). In addition, the evaporative cooler (40) has at least one filling opening (46) for filling in the first and/or second component.

Abstract: The invention relates to a thermoplastic molding compound containing: a) 50 to 85 parts of one or more terpolymers based on acrylnitril, alpha-methylstyrene, and styrene as component A, said terpolymers consisting of: 5 to 30 wt. % styrene, 15 to 35 wt. % acrylnitril, 50 to 70 wt. % alpha-methylstyrene, and 0 to 5 wt. % additional copolymerizable monomers, b) 15 to 50 parts of one or more impact-modifying graft rubbers with an olefinic double bond in the rubber phase as component B, c) 0 to 45 parts of one or more copolymers based on styrene and acrylnitril as component C, said copolymers consisting of: 71 to 81 wt. % styrene, 29 to 19 wt. % acrylnitril, and 0 to 5 wt. % additional copolymerizable monomers, and optionally additives and fibrous and/or particulate fillers. The thermoplastic molding compound leads to a reduced yellowing of the produced molded body.

Abstract: Molding compositions comprising: a composition (I) present in an amount of 10 to 100% by weight, based on the molding composition, wherein the composition (I) comprises: (A) 40 to 95% by weight, based on the composition (I), of a copolymer comprising: ?-methylstyrene in an amount of 55 to 90% by weight, acrylonitrile in an amount of 10 to 50% by weight, and one or more other monomers in an amount of 0 to 5% by weight, wherein the percentages by weight of the ?-methylstyrene, the acrylonitrile and the one or more other monomers are based on the weight of component (A); (B) 2.5 to 75% by weight, based on the composition (I), of a polymer comprising: a vinylaromatic monomer in an amount of 60 to 90% by weight, acrylonitrile in an amount of 8.01 to 39.8% by weight, and maleic anhydride in an amount of 0.2 to 1.99% by weight, wherein the percentages by weight of the vinylaromatic monomer, the acrylonitrile and the maleic anhydride are based on the weight of component (B); and (C) 2.

Abstract: The invention relates to a thermoplastic molding compound containing: a) 50 to 85 parts of one or more terpolymers based on acrylnitril, alpha-methylstyrene, and styrene as component A, said terpolymers consisting of: 5 to 30 wt. % styrene, 15 to 35 wt. % acrylnitril, 50 to 70 wt. % alpha-methylstyrene, and 0 to 5 wt. % additional copolymerizable monomers, b) 15 to 50 parts of one or more impact-modifying graft rubbers with an olefinic double bond in the rubber phase as component B, c) 0 to 45 parts of one or more copolymers based on styrene and acrylnitril as component C, said copolymers consisting of: 71 to 81 wt. % styrene, 29 to 19 wt. % acrylnitril, and 0 to 5 wt. % additional copolymerizable monomers, and optionally additives and fibrous and/or particulate fillers. The thermoplastic molding compound leads to a reduced yellowing of the produced molded body.

Abstract: The present invention relates to processes for preparing copolymers A) with a reduced soil particle content, comprising 49.2 to 93.2% by weight of structural units which derive from one or more vinylaromatic monomers (component A1)), 6 to 50% by weight of structural units which derive from one or more vinyl cyanides (component A2)), 0.

Abstract: A thermoplastic molding composition, comprising the following amounts of components A, B, C, and D: a) from 3 to 91.9% by weight of one or more styrene copolymers A, b) from 3 to 91% by weight of one or more polyamides B, c) from 5 to 50% by weight of one or more graft polymers C, d) from 0.1 to 25% by weight of one or more terpolymers D, whose oligomer content is smaller than 3% by weight, and also, if appropriate, comprising, as further components, a further rubber E, an at least monofunctional anhydride F, fibrous or particulate fillers G, and also further additives H, has markedly reduced anisotropy of impact resistance.

Abstract: The present invention relates to thermoplastic molding compositions comprising a mixture of (A) from 30 to 69% by weight, based on the sum of components (A), (B) and (C), of a methyl methacrylate polymer, (B) from 30 to 69% by weight, based on the sum of components (A), (B) and (C), of a copolymer obtainable by polymerizing a styrenic monomer and a vinyl cyanide, and (C) from 1 to 40% by weight, based on the sum of components (A), (B) and (C), of a graft copolymer obtainable from (C1) from 60 to 90% by weight, based on (C), of a core obtainable by polymerizing a 1,3-diene and a styrenic monomer, (C2) from 5 to 20% by weight, based on (C), of a first graft shell, and (C3) from 5 to 20% by weight, based on (C), of a second graft shell composed of an alkyl (meth)acrylate polymer, with the proviso that the ratio of (C2) to (C3) is in the range from 2:1 to 1:2.

Abstract: The invention relates to thermoplastic molding compositions, comprising A) from 35 to 95% by weight of at least one graft copolymer A), which is obtainable via reaction of A1) from 5 to 95% by weight of a polymer A1), which is obtained from at least one dicarboxylic anhydride a11) and from at least one vinylaromatic comonomer a12), and A2) from 5 to 95% by weight of a polyamide A2), B) from 5 to 40% by weight of at least one ungrafted or grafted, non-particulate rubber without core-shell structure B), which has functional groups which can react with the end groups of component A), C) from 0 to 50% by weight of at least one particulate or fibrous filler or particulate or fibrous reinforcing material C), D) from 0 to 60% by weight of at least one copolymer D) composed of vinyl aromatic monomers d1) and of comonomers d2), and E) from 0 to 40% by weight of at least one other additive E), where the entirety of components A) to E) gives 100% by weight, and also to processes for preparation of the thermoplasti

Abstract: A thermoplastic molding composition, comprising the following amounts of components A, B, C, and D: a) from 3 to 91.9% by weight of one or more styrene copolymers A, b) from 3 to 91% by weight of one or more polyamides B, c) from 5 to 50% by weight of one or more graft polymers C, d) from 0.1 to 25% by weight of one or more terpolymers D, whose oligomer content is smaller than 3% by weight, and also, if appropriate, comprising, as further components, a further rubber E, an at least monofunctional anhydride F, fibrous or particulate fillers G, and also further additives H, has markedly reduced anisotropy of impact resistance.

Abstract: The invention relates to thermoplastic molding compositions, comprising A) from 35 to 95% by weight of at least one graft copolymer A), which is obtainable via reaction of A1) from 5 to 95% by weight of a polymer A1), which is obtained from at least one dicarboxylic anhydride a11) and from at least one vinylaromatic comonomer a12), and A2) from 5 to 95% by weight of a polyamide A2), B) from 5 to 40% by weight of at least one ungrafted or grafted, non-particulate rubber without core-shell structure B), which has functional groups which can react with the end groups of component A), C) from 0 to 50% by weight of at least one particulate or fibrous filler or particulate or fibrous reinforcing material C), D) from 0 to 60% by weight of at least one copolymer D) composed of vinyl aromatic monomers d1) and of comonomers d2), and E) from 0 to 40% by weight of at least one other additive E), where the entirety of components A) to E) gives 100% by weight, and also to processes for preparation of the thermoplasti

Abstract: The present invention relates to a process for preparation of copolymers A) comprising A1) one or more vinylaromatic monomers, A2) one or more vinyl cyanides, and A3) one or more dicarboxylic anhydrides via bulk polymerization or via solution polymerization, an important feature of the invention being that the polymerization is carried out in the presence of from 0.01 to 0.5% by weight of water, based on the total weight of the polymerization mixture. The present invention further relates to the copolymers A), to thermoplastic molding compositions comprising the copolymers A), to the use of the copolymers A) and of the thermoplastic molding compositions, and also to the moldings, foils, fibers, or foams obtainable from the copolymers A) or from the thermoplastic molding compositions.

Abstract: The present invention relates to thermoplastic molding compositions, comprising a mixture composed of (A) from 30 to 69% by weight, based on the entirety of components (A), (B) and (C), of a methyl methacrylate polymer, (B) from 30 to 69% by weight, based on the entirety of components (A), (B) and (C), of a copolymer, obtainable via polymerization of a vinylaromatic monomer and of a vinyl cyanide, and (C) from 1 to 40% by weight, based on the entirety of components (A), (B) and (C), of a graft copolymer, obtainable from (C1) from 60 to 90% by weight, based on (C), of an agglomerated core based on a 1,3-diene, (C2) from 5 to 20% by weight, based on (C), of a first graft shell composed of a vinylaromatic monomer, of an alkyl methacrylate, and, if appropriate, of a crosslinking monomer, and (C3) from 5 to 20% by weight, based on (C), of a second graft shell composed of an alkyl(meth)acrylate polymer, with the proviso that the ratio by weight of (C2) to (C3) is in the range from 2:1 to 1:2, and it is inventiv

Abstract: Molding compositions comprising: a composition (I) present in an amount of 10 to 100% by weight, based on the molding composition, wherein the composition (I) comprises: (A) 40 to 95% by weight, based on the composition (I), of a copolymer comprising: ?-methylstyrene in an amount of 55 to 90% by weight, acrylonitrile in an amount of 10 to 50% by weight, and one or more other monomers in an amount of 0 to 5% by weight, wherein the percentages by weight of the ?-methylstyrene, the acrylonitrile and the one or more other monomers are based on the weight of component (A); (B) 2.5 to 75% by weight, based on the composition (I), of a polymer comprising: a vinylaromatic monomer in an amount of 60 to 90% by weight, acrylonitrile in an amount of 8.01 to 39.8% by weight, and maleic anhydride in an amount of 0.2 to 1.99% by weight, wherein the percentages by weight of the vinylaromatic monomer, the acrylonitrile and the maleic anhydride are based on the weight of component (B); and (C) 2.