Abstract: A bearing unit (1) for a suspension strut (2) of a motor vehicle (3), has at least the following components: a guide ring (4) having a guide axis (5) for a wheel spring (6); a cap (7) with a damper holder (8) for a damper block (9); a bumpstop holder (10) for a bumpstop (11); an axial bearing (12) with a bearing pitch circle (13) for supporting the guide ring (4) on the cap (7) and for low-friction rotation about the guide axis (5) relative to the cap (7). The bumpstop holder (10) is formed integrally by the cap (7).

Abstract: A flame retardant thermoplastic polymer composition is disclosed. The flame retardant composition can include a flame retardant system comprised of only two flame retardant components. The composition can display excellent flame resistant properties at extremely small thicknesses. The composition can also contain a stabilizer package that dramatically improves heat aging properties.

Abstract: A polymer composition that comprises from about 20 wt. % to about 70 wt. % of a polymer matrix that includes a polyimide; from about 10 wt. % to about 50 wt. % of inorganic fibers; from about 5 wt. % to about 30 wt. % of a flame retardant system that includes an organophosphorous compound; and from about 0.1 wt. % to about 5 wt. % of a stabilizer system that includes a heat stabilizer is provided. The heat stabilizer includes a copper compound. The polymer composition exhibits an initial tensile strength and an aged tensile strength after exposure to temperature of 200° C. for 1,000 hours. The ratio of the aged tensile strength to the initial tensile strength is about 0.5 or more.

Abstract: A bearing unit (1) for a suspension strut (2) of a motor vehicle (3), has at least the following components: a guide ring (4) having a guide axis (5) for a wheel spring (6); a cap (7) with a damper holder (8) for a damper block (9); a bumpstop holder (10) for a bumpstop (11); an axial bearing (12) with a bearing pitch circle (13) for supporting the guide ring (4) on the cap (7) and for low-friction rotation about the guide axis (5) relative to the cap (7). The bumpstop holder (10) is formed integrally by the cap (7).

Abstract: A power electronic module comprising a housing that receives at least one power converter is provided. The housing contains a polymer composition that includes an electromagnetic interference filler distributed within a polymer matrix. The polymer matrix contains a thermoplastic polymer having a deflection temperature under load of about 40° C. or more as determined in accordance with ISO 75-2:2013 at a load of 1.8 MPa. Further, the composition exhibits an electromagnetic interference shielding effectiveness of about 25 decibels or more as determined in accordance with ASTM D4935-18 at a frequency of 30 MHz and thickness of 3 millimeters.

Abstract: An electronic module that comprises a housing that receives at least one electronic component is disclosed. The housing contains a polymer composition that includes an electromagnetic interference filler distributed within a polymer matrix, wherein the electromagnetic interference filler includes a plurality of carbon fibers and the polymer matrix contains a thermoplastic polymer. Further, the composition exhibits an electromagnetic interference shielding effectiveness of about 30 decibels or more, as determined in accordance with ASTM D4935-18 at a frequency of 5 GHz and thickness of 1 millimeter, and an in-plane thermal conductivity of about 1 W/m-K or more, as determined in accordance with ASTM E 1461-13.

Abstract: A suspension strut bearing having a cap and a guide ring mounted such that it is rotatable in relation to the cap about an axis of rotation, a plain bearing or rolling bearing provided between the cap and the guide ring and a supporting ring provided for a bump stop, which supporting ring extends radially internally around the guide ring, and the supporting ring is connected to the guide ring with material fit.

Abstract: Use of spiro compounds of the formula (I) ##STR1## where K.sup.1 and K.sup.2 are, independently of one another, conjugated systems, in electroluminescence devices.Preferred compounds of the formula (I) are 9,9'-spirobifluorene derivatives of the formula (II) ##STR2## where the benzo groups can be substituted independently of one another. Compounds of the formula (I) have a good solubility in customary organic solvents, improved film-forming properties and a significantly reduced tendency to crystallize. The production of electroluminescence devices is thereby made easier and their service life is increased.