Abstract: A method and a device for the production of polyamide 6 pellets wherein an intermediate drying is not necessary and a combined pelletizing and extraction take place. Depending on the intended use, the pellets may directly be used or subjected to further treatment steps. A device for the production of polyamide 6 pellets includes a melt device for providing a melt of polyamide 6, an underwater pelletizing system which is operable under increased pressure, and a vertical vessel having a cylindrical section and a tapered bottom section. The tapered bottom section is provided with a cooling device and is connected to a pipe comprising a screw and/or a rotary gate valve for conveying pellets. The device includes a circuit for circulating an aqueous solution of ? caprolactam through the underwater pelletizing system and the vertical vessel.

Abstract: The present invention relates to a method for the production of polyamide 6 with low extract content and a device for it. Here, a melt of non-extracted polyamide 6 is cleaned from monomer and oligomers in a degasification device in vacuum, wherein the vapor being withdrawn from the degasification device by the vacuum generation device is cleaned from monomer, oligomers and optionally water at first in a direct condenser which is operated with liquid ?-caprolactam and subsequently in a pre-separator which is cooled with a coolant, before it reaches the vacuum generation device. A particularly preferable variant of the method envisages the usage of the melt of polyamide 6 with low extract content so prepared in a direct process of spinning into textile fibers and/or filaments.

Abstract: Thermoplastic molding compositions comprising A) from 10 to 99.7% by weight of a polyamide, B) from 1 to 30% by weight of an impact modifier, C) from 0.1 to 10% by weight of a copolymer of C1) from 50 to 95% by weight of styrene or substituted styrenes of the general formula I or a mixture of these in which R is an alkyl radical having from 1 to 8 carbon atoms or a hydrogen atom and R1 is an alkyl radical having from 1 to 8 carbon atoms and n has the value 0, 1, 2, or 3, and C2) from 5 to 50% by weight of structural units derived from one or more dicarboxylic anhydrides, D) from 0.001 to 20% by weight of iron powder, E) from 0.

Abstract: The present invention relates to a method for the production of polyamide 6 with low extract content and a device for it. Here, a melt of non-extracted polyamide 6 is cleaned from monomer and oligomers in a degasification device in vacuum, wherein the vapor being withdrawn from the degasification device by the vacuum generation device is cleaned from monomer, oligomers and optionally water at first in a direct condenser which is operated with liquid ?-caprolactam and subsequently in a pre-separator which is cooled with a coolant, before it reaches the vacuum generation device. A particularly preferable variant of the method envisages the usage of the melt of polyamide 6 with low extract content so prepared in a direct process of spinning into textile fibers and/or filaments.

Abstract: A seat backrest is provided, comprising a framework (1) including an upper portion (10), a lower portion (20), a central support portion (40) and two side portions (30) formed integrally by injection molding a thermoplastic material; and an elongated reinforcement (60) embedded in the side portion (30) and the central support portion (40) by overmolding and extending along the side portion (30), the reinforcement (60) being configured to bend along a boundary (35) between the side portion (30) and the central support portion (40). A seat including the backrest is also provided.

Abstract: The invention discloses a seat pan (20), being formed from a first thermoplastic composite material into a one-piece pan, the seat pan (20) having a weight loading portion (201), wherein at least one slot (2010) is provided in the area of the weight loading portion (201) of the seat pan (20), and covering strips (2012) are formed by overmolding on the side edges of straps (2011) separated by the slot (2010) and extending along at least a portion of the circumference of the slot (2010) so as to reinforce the straps (2011), the covering strips (2012) being made of a second thermoplastic composite material. Furthermore, the invention discloses a seat (1) comprising the above seat pan (20).

Abstract: Thermoplastic molding compositions comprising A) from 10 to 99.7% by weight of a polyamide, B) from 1 to 30% by weight of an impact modifier, C) from 0.1 to 10% by weight of a copolymer of C1) from 50 to 95% by weight of styrene or substituted styrenes of the general formula I or a mixture of these in which R is an alkyl radical having from 1 to 8 carbon atoms or a hydrogen atom and R1 is an alkyl radical having from 1 to 8 carbon atoms and n has the value 0, 1, 2, or 3, and C2) from 5 to 50% by weight of structural units derived from one or more dicarboxylic anhydrides, D) from 0.001 to 20% by weight of iron powder, E) from 0.

Abstract: The invention discloses a seat pan (20), being formed from a first thermoplastic composite material into a one-piece pan, the seat pan (20) having a weight loading portion (201), wherein at least one slot (2010) is provided in the area of the weight loading portion (201) of the seat pan (20), and covering strips (2012) are formed by overmolding on the side edges of straps (2011) separated by the slot (2010) and extending along at least a portion of the circumference of the slot (2010) so as to reinforce the straps (2011), the covering strips (2012) being made of a second thermoplastic composite material. Furthermore, the invention discloses a seat (1) comprising the above seat pan (20).

Abstract: A seat backrest is provided, comprising a framework (1) including an upper portion (10), a lower portion (20), a central support portion (40) and two side portions (30) formed integrally by injection molding a thermoplastic material; and an elongated reinforcement (60) embedded in the side portion (30) and the central support portion (40) by overmolding and extending along the side portion (30), the reinforcement (60) being configured to bend along a boundary (35) between the side portion (30) and the central support portion (40). A seat including the backrest is also provided.

Abstract: Thermoplastic molding compositions comprising A) from 10 to 99.7% by weight of a polyamide, B) from 1 to 30% by weight of an impact modifier, C) from 0.1 to 10% by weight of a copolymer of C1) from 50 to 95% by weight of styrene or substituted styrenes of the general formula I or a mixture of these in which R is an alkyl radical having from 1 to 8 carbon atoms or a hydrogen atom and R1 is an alkyl radical having from 1 to 8 carbon atoms and n has the value 0, 1, 2, or 3, and C2) from 5 to 50% by weight of structural units derived from one or more dicarboxylic anhydrides, D) from 0.001 to 20% by weight of iron powder, E) from 0.

Abstract: The use of thermoplastic molding materials comprising A) 10 to 98.8% by weight of a mixture formed from a1) 40 to 70% by weight of nylon-6,6 or nylon-4,6 or nylon-6 or mixtures thereof, a2) 30 to 60% by weight of a polyamide having a ratio of methylene to amide groups of 7 to 12, B) 1 to 50% by weight of a fibrous or particulate filler, C) 0.1 to 3% by weight of a lubricant, D) 0.05 to 3% by weight of a heat stabilizer, E) 0 to 40% by weight of further additives, where the sum of the percentages by weight A) to E) and a1) and a2) adds to 100%, for production of stress cracking- and corrosion-resistant moldings.

Abstract: Thermoplastic molding compositions, comprising A) from 10 to 99.99% by weight of a polyamide B) from 0.01 to 20% by weight of a high-functionality polyetherol with an OH number of from 3 to 1350 mg KOH/g of polyetherol (to DIN 53240, part 2), C) from 0 to 70% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%.

Abstract: Thermoplastic molding compositions, comprising A) from 10 to 99.999% by weight of a polyimide B) from 0.001 to 20% by weight of iron powder with a particle size of at most 10 ?m (d50 value), which is obtainable via thermal decomposition of pentacarbonyliron, C) from 0 to 70% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%.

Abstract: Thermoplastic molding compositions, comprising A) from 10 to 98% by weight of a thermoplastic polyamide, B) from 0.01 to 20% by weight of a highly branched melamine polymer or melamine-urea polymer, or a mixture of these, C) from 0 to 70% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%.

Abstract: Thermoplastic molding compositions, comprising A) from 10 to 98% by weight of a polyamide B) from 0.001 to 20% by weight of iron powder with a particle size of at most 10 ?m (d50 value) C) from 1 to 40% by weight of a halogen-free flame retardant from the group of the phosphorus- or nitrogen-containing compounds or P—N condensates, or a mixture of these D) from 0 to 70% by weight of further additives, where the total of the percentages by weight of components A) to D) is 100%.

Abstract: The use of thermoplastic molding materials comprising A) 10 to 98.8% by weight of a mixture formed from a1) 40 to 70% by weight of nylon-6,6 or nylon-4,6 or nylon-6 or mixtures thereof, a2) 30 to 60% by weight of a polyamide having a ratio of methylene to amide groups of 7 to 12, B) 1 to 50% by weight of a fibrous or particulate filler, C) 0.1 to 3% by weight of a lubricant, D) 0.05 to 3% by weight of a heat stabilizer, E) 0 to 40% by weight of further additives, where the sum of the percentages by weight A) to E) and a1) and a2) adds to 100%, for production of stress cracking- and corrosion-resistant moldings.

Abstract: Thermoplastic molding compositions comprising A) from 10 to 99.94% by weight of a polyamide, B) from 0.05 to 5% by weight of a polyethyleneimine homo- or copolymer, C) from 0.01 to 20% by weight of iron powder, and D) from 0 to 70% by weight of further additives, where the total of the percentages by weight of A) to D) is 100%.

Abstract: Thermoplastic molding compositions, comprising A) from 10 to 99.999% by weight of a polyimide B) from 0.001 to 20% by weight of iron powder with a particle size of at most 10 ?m (d50 value), which is obtainable via thermal decomposition of pentacarbonyliron, C) from 0 to 70% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%.

Abstract: Thermoplastic molding compositions, comprising A) from 10 to 98% by weight of a polyamide B) from 0.001 to 20% by weight of iron powder with a particle size of at most 10 ?m (d50 value) C) from 1 to 40% by weight of a halogen-free flame retardant from the group of the phosphorus- or nitrogen-containing compounds or P—N condensates, or a mixture of these D) from 0 to 70% by weight of further additives, where the total of the percentages by weight of components A) to D) is 100%.

Abstract: Thermoplastic molding compositions comprising A) from 10 to 99% by weight of a polyamide, B) from 0.1 to 20% by weight of B1) a polyacrylamide or B2) a polyvinylamide, or a mixture of these, C) from 0 to 70% by weight of further additives, where the total of the percentages by weight of components A) to C) is 100%.