Abstract: Disclosed are polyamide moulding compounds having a relative permittivity of no more than 3.5 at 2.45 GHz, and having the following components: (A) 25 to 80% by weight of a mixture made of at least one partially crystalline aliphatic polyamide and at least one amorphous or microcrystalline polyamide, (B) 20 to 65% by weight of at least one glass filler, and (C) 0 to 10% by weight of additives, the sum of components (A), (B) and (C) producing 100% by weight. The polyamide moulding compounds are for use in components of devices such as laptops and mobile phones.

Abstract: A polyamide molding composition and uses thereof, and moldings produced therefrom, comprising the following components: (A) semicrystalline semiaromatic polyamide with melting point above 270° C., or a mixture of these polyamides; (B) copolymer of oxyranyl acrylate and/or oxyranyl methacrylate with at least one other olefinically unsaturated monomer, or a mixture of these copolymers; (C) one or more fibrous reinforcing materials; (D) one or more heat stabilizers; where the proportion of (B) is in the range of 1 to 15% by weight, based on 100% by weight composed of the entirety of the components (A) and (B), with the proviso that the polyamide molding composition is free from grafted impact modifiers.

Abstract: A polyamide molding material is proposed, which comprises at least one partially crystalline, partially aromatic polyamide (A) and at least one amorphous polyamide (B). The polyamides (A) and (B) together make up 30-60 wt.-% of the polyamide molding material. Furthermore, the polyamide molding material comprises 40-70 wt.-% glass fibers (C) having flat cross section, 0-15 wt.-% of at least one nonhalogenated flame retardant (D), and 0-10 wt.-% further additives (E), the components (A) to (E) adding up to 100 wt.-% of the polyamide molding material. The at least one partially crystalline, partially aromatic polyamide (A) has a glass transition temperature of at least 105° C. The polyamide molding material according to the invention is preferably distinguished in an injection-molding burr formation test in that, at a melt temperature of 320° C. and a tool temperature of 90° C.

Abstract: Disclosed is a polyamide moulding compound suitable for producing moulded articles with improved mechanical properties, the moulding compound including A) at least one amorphous or microcrystalline polyamide, with the proviso that a test piece of polyamide A) has a light transmission according to ASTM D 1003 of at least 80% and a melting heat according to ISO 11357 of <25 J/g, B) 20 to 85% by weight of a long fibre with a round cross-section and C) 0 to 10% by weight of at least one additive, components A) to C) adding up to 100% by weight. Also disclosed is a process for producing moulded bar granulates containing the moulding compound.

Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy) phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.

Abstract: Disclosed is a polyamide moulding compound suitable for producing moulded articles with improved mechanical properties, the moulding compound including A) at least one amorphous or microcrystalline polyamide, with the proviso that a test piece of polyamide A) has a light transmission according to ASTM D 1003 of at least 80% and a melting heat according to ISO 11357 of <25 J/g, B) 20 to 85% by weight of a long fibre with a round cross-section and C) 0 to 10% by weight of at least one additive, components A) to C) adding up to 100% by weight. Also disclosed is a process for producing moulded bar granulates containing the moulding compound.

Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.

Abstract: The invention concerns polyamide moulding compound, in particular for producing heat-resistant moulded parts, having the following composition: (A) 20 to 79 wt. % of at least one partially aromatic polyamide in the form of a copolyamide which comprises 50 to 80 mol. % units formed by hexanediamine and terephthalic acid; (B) 1 to 15 wt. % of at least one impact-resistant modifier; (C) 20 to 60 wt. % of at least one carbon fibre; and (D) 0 to 5 wt. % of at least one additive, components (A) to (D) adding up to 100 wt. %.

Abstract: A reinforced polyamide moulding composition is described, particularly for use as starting material for the production of housings for devices in the field of mobile radio technology, composed of the following components: (A) from 20-45% by weight of aliphatic polyamide selected from the group consisting of: PA 610, PA 612 and mixtures thereof; (B) from 5-15% by weight of semiaromatic polyamide selected from the group consisting of: 6I, DI, 6I/6T, 6I/6T, DI/DT, DI/6T, MXD6 and mixtures thereof; (C) from 45-75% by weight of flat glass fibres with non-circular cross section, where the dimensional ratio of the major cross-sectional axis to the minor cross-sectional axis of the said cross section is in the range from 2-5; (D) from 0-10% by weight of additives; where components (A)-(D) give a total of 100% by weight.

Abstract: A polyamide moulding composition and uses thereof, and mouldings produced therefrom, comprising the following components: (A) semicrystalline semiaromatic polyamide with melting point above 270° C., or a mixture of these polyamides; (B) copolymer of oxyranyl acrylate and/or oxyranyl methacrylate with at least one other olefinically unsaturated monomer, or a mixture of these copolymers; (C) one or more fibrous reinforcing materials; (D) one or more heat stabilizers; where the proportion of (B) is in the range of 1 to 15% by weight, based on 100% by weight composed of the entirety of the components (A) and (B), with the proviso that the polyamide moulding composition is free from grafted impact modifiers.

Abstract: A polyamide molding material is proposed, which comprises at least one partially crystalline, partially aromatic polyamide (A) and at least one amorphous polyamide (B). The polyamides (A) and (B) together make up 30-60 wt.-% of the polyamide molding material. Furthermore, the polyamide molding material comprises 40-70 wt.-% glass fibers (C) having flat cross section, 0-15 wt.-% of at least one nonhalogenated flame retardant (D), and 0-10 wt.-% further additives (E), the components (A) to (E) adding up to 100 wt.-% of the polyamide molding material. The at least one partially crystalline, partially aromatic polyamide (A) has a glass transition temperature of at least 105° C. The polyamide molding material according to the invention is preferably distinguished in an injection-molding burr formation test in that, at a melt temperature of 320° C. and a tool temperature of 90° C.

Abstract: This invention describes a thermoplastic moulding compound, specifically a polyamide moulding compound, consisting of: (A) 20-88% by weight thermoplastic synthetic, preferably polyamide; (B) 10-70% by weight fibre-shaped aggregates; (B1) 10-70% by weight glass fibres that consist primarily of silicon dioxide, aluminium oxide, and magnesium oxide; (B2) 0-20% by weight glass fibres that differ from the fibres in components (B1); (B3) 0-20% by weight additional fibre-shaped aggregates that differ from the fibres in components (B1) and (B2), are not based on glass, and are selected from the following group: carbon fibres, graphite fibres, aramide fibres, nanotubes; (C) 2-40% by weight particulate filler material; (D) 0-2% by weight additives; whereby the sum of (A) through (D) equals 100% weight.

Abstract: The invention relates to filled polyamide molding compounds which, in addition to a selected polymer mixture comprising two different polyamides, contain long glass fibers with a non-circular cross-sectional area. Furthermore, the invention relates to the use of such molding compounds for the production of molded articles and the molded articles themselves.

Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy)phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.

Abstract: The present invention relates to reinforced polyamide molding compounds containing high-melting partially aromatic polyamides and flat glass fibers, in particular with a rectangular cross section, i.e., glass fibers with a noncircular cross-sectional area and a dimension ratio of the main cross-sectional axis to the secondary cross-sectional axis of 2 to 6, in particular 3 to 6, most especially preferably from 3.5 to 5.0. The present invention also relates to a method for manufacturing polyamide molding compounds and molded articles manufactured therefrom, i.e., in particular injection-molded parts. The inventive molded parts have a high transverse stiffness and transverse strength.

Abstract: Particles are provided for use in therapeutic and/or diagnostic procedures. The particles include poly[bis(trifluoroethoxy) phosphazene] and/or a derivatives thereof which may be present throughout the particles or within an outer coating of the particles. The particles can also include a core having a hydrogel formed from an acrylic-based polymer. Barium sulfate may also be provided to the core of the particles as a coating or absorbed within the core of the particles. The particles can be used to minimize blood flow to mammalian tissues by occluding at least a portion of a blood vessel of the mammal, or to deliver an active agent to a localized area within a body of a mammal by contacting a localized area with at least one of the particles. Further, the particles are useful in sustained release formulations including active agent(s) for oral administration, as tracer particles for injection into the bloodstream of a mammal or for use in enhanced ultrasound imaging.

Abstract: Filled polyamide molding compounds which, in addition to a selected polymer mixture comprising polyamides and a flameproofing agent, contain glass fibers with non-circular cross-sections, the use of such molding compounds for the production of molded articles, and the molded articles themselves.

Abstract: Filled polyamide molding compounds which, in addition to a selected polymer mixture comprising polyamides and a flameproofing agent, contain glass fibers with non-circular cross-sections, the use of such molding compounds for the production of molded articles, and the molded articles themselves.

Abstract: The present invention relates to reinforced polyamide molding compounds containing high-melting partially aromatic polyamides and flat glass fibers, in particular with a rectangular cross section, i.e., glass fibers with a noncircular cross-sectional area and a dimension ratio of the main cross-sectional axis to the secondary cross-sectional axis of 2 to 6, in particular 3 to 6, most especially preferably from 3.5 to 5.0. The present invention also relates to a method for manufacturing polyamide molding compounds and molded articles manufactured therefrom, i.e., in particular injection-molded parts. The inventive molded parts have a high transverse stiffness and transverse strength.

Abstract: A method for selectively assembling a molecular device on a substrate comprises contacting the first substrate with a solution containing molecular devices; impeding bonding of the molecular devices to the substrate such that application of a voltage potential to the substrate results in assembly of the molecular device on the substrate at a rate that is at least 1.5 times the rate of assembly of the molecular device on a voltage-neutral substrate; and applying a voltage potential to the substrate so as to cause the molecular devices to assemble on the substrate. A nanoscale computing device is described that includes a substrate, a pair of conductive input/output electrodes carried on this substrate and disposed in spaced-apart relationship and a substantially disordered assembly of nanowires formed on the substrate in a region between the electrodes, thereby forming at least one programmable conductive pathway between the pair of electrodes.