Abstract: A pump diaphragm for a diaphragm pump for conveying a fluid includes a solid core with a connection device for a drive rod of the diaphragm pump, and a plate-shaped elastic diaphragm body made of rubber having a peripheral clamping edge. The solid core is embedded at least partially in the diaphragm body and the solid core is produced from a thermoplastic and forms covalent bonds with the elastic diaphragm body made of rubber without adhesive. For this purpose, the thermoplastic, for example polyamide 612 or polyphenylene ether, and the rubber, a periodically cross-linked rubber such as EPDM, are selected in such a way that they are covalently cross-linked with one another at the boundary layer. In this way, a bonding layer that is susceptible to weakening or destruction is not present between the core and the diaphragm body.

Abstract: A control diaphragm for controlling fuel supply in a carburetor of an internal combustion engine includes a functional region enclosing a sensing region concentrically and a peripheral fastening border for fastening the control diaphragm in the diaphragm carburetor. The control diaphragm closes a control chamber of the diaphragm carburetor and is operatively connected via the central sensing region to a control lever in the control chamber and senses the axial deflection of the sensing region in a manner dependent on operation-induced pressure change in the control chamber. The control diaphragm consists in one piece of temperature-resistant and fuel-resistant, non-elastomeric plastic and the functional region is configured by way of a multiplicity of concentric corrugations. The outermost corrugation directly adjoins the fastening border, and the radius of the outermost corrugation corresponds substantially to the radius of the control chamber.

Abstract: The invention relates to a method for forming a dimensionally stable three-dimensional shape into a sheet-like substrate (3) of thermoplastic material comprising the steps of: a.) providing a mould including a first die (1) with a first template surface (11) for contacting an upper surface (31) of the substrate (3) and a second die (2) with a second template surface (21) for contacting a lower surface (32) of the substrate (3) opposite the upper surface (31) of the substrate (3); each template surface (11, 21) having an inverse of a desired shape to be transformed to the upper and lower surfaces (31, 32) of the substrate (3); and at least one of the first die (1) and the second die (2) being transparent to electromagnetic waves of a predetermined wavelength; b.

Abstract: A pump diaphragm for a diaphragm pump for conveying a fluid includes a solid core with a connection device for a drive rod of the diaphragm pump, and a plate-shaped elastic diaphragm body made of rubber having a peripheral clamping edge. The solid core is embedded at least partially in the diaphragm body and the solid core is produced from a thermoplastic and forms covalent bonds with the elastic diaphragm body made of rubber without adhesive. For this purpose, the thermoplastic, for example polyamide 612 or polyphenylene ether, and the rubber, a periodically cross-linked rubber such as EPDM, are selected in such a way that they are covalently cross-linked with one another at the boundary layer. In this way, a bonding layer that is susceptible to weakening or destruction is not present between the core and the diaphragm body.

Abstract: Polycarbonate blend compositions are disclosed. The compositions include at least one polycarbonate useful for high heat applications. The compositions can include one or more additional polymers. The compositions can include one or more additives. The compositions can be used to prepare articles of manufacture, and in particular, automotive bezels.

Abstract: A control diaphragm for controlling fuel supply in a carburetor of an internal combustion engine includes a functional region enclosing a sensing region concentrically and a peripheral fastening border for fastening the control diaphragm in the diaphragm carburetor. The control diaphragm closes a control chamber of the diaphragm carburetor and is operatively connected via the central sensing region to a control lever in the control chamber and senses the axial deflection of the sensing region in a manner dependent on operation-induced pressure change in the control chamber. The control diaphragm consists in one piece of temperature-resistant and fuel-resistant, non-elastomeric plastic and the functional region is configured by way of a multiplicity of concentric corrugations. The outermost corrugation directly adjoins the fastening border, and the radius of the outermost corrugation corresponds substantially to the radius of the control chamber.

Abstract: Polycarbonate blend compositions are disclosed. The compositions include at least one polycarbonate useful for high heat applications. The compositions can include one or more additional polymers. The compositions can include one or more additives. The compositions can be used to prepare articles of manufacture, and in particular, automotive bezels.

Abstract: Dark colored polycarbonate compositions and exterior automotive parts produced therefrom with infrared resistance additives are disclosed. The dark colored polycarbonate compositions and parts impart enhanced thermal management and reduce intrinsic heat up of darker materials by incorporation of an improved infrared resistance additive. The dark polycarbonate compositions and automotive parts may be used in various exterior applications including automotive glazing applications.

Abstract: The present application relates to a thermoplastic composition, comprising: a polycarbonate polymer; 0.05 to 0.2 weight percent of a triacylglyceride release agent; and 0.25 to 0.55 weight percent of a tetrastearate second release agent. The total amount of the triacylglyceride release agent and the second release agent is less than or equal to 0.6 weight percent and the weight percent values are based on the total weight of the composition.

Abstract: The present application relates to a thermoplastic composition, comprising: a polycarbonate polymer; 0.05 to 0.2 weight percent of a triacylglyceride release agent; and 0.25 to 0.55 weight percent of a tetrastearate second release agent. The total amount of the triacylglyceride release agent and the second release agent is less than or equal to 0.6 weight percent and the weight percent values are based on the total weight of the composition.