Abstract: A theatre raceway comprising an outlet assembly and a back shell. The outlet assembly includes an electrical component mounted to an outlet frame having wire stays for guiding an electrical wire (e.g., a communication wire or a power wire). The wire stays are spaced apart to facilitate access to the wires. The back shell is secured to the outlet assembly and covers the wire stays. In one embodiment, the raceway further comprises an alignment feature that aligns the back shell with the outlet assembly. For example, the alignment feature can comprises a tab on the outlet assembly and a recess on the back shell. The raceway can also include a fastener securing the back shell to the outlet assembly, wherein the fastener includes a head positioned in a recessed portion of the back shell.

Abstract: The invention relates to the production of PMI foams, more particularly to their formulating ingredients, which lead to particular facility in adjusting the density at given foaming temperature.

Abstract: A theatre raceway comprising an outlet assembly and a back shell. The outlet assembly includes an electrical component mounted to an outlet frame having wire stays for guiding an electrical wire (e.g., a communication wire or a power wire). The wire stays are spaced apart to facilitate access to the wires. The back shell is secured to the outlet assembly and covers the wire stays. In one embodiment, the raceway further comprises an alignment feature that aligns the back shell with the outlet assembly. For example, the alignment feature can comprises a tab on the outlet assembly and a recess on the back shell. The raceway can also include a fastener securing the back shell to the outlet assembly, wherein the fastener includes a head positioned in a recessed portion of the back shell.

Abstract: The invention relates to the production of PMI foams, more particularly to their formulating ingredients, which lead to particular facility in adjusting the density at given foaming temperature.

Abstract: The present invention relates to a method of purifying strong acids or strongly acidic media to remove di- and higher valent metal ions, which can be used within the context of the production of high-purity silica. The invention further relates to the use of special ion exchangers for carrying out the method according to the invention and the resultant high-purity silicas.

Abstract: The present invention relates to a method of purifying strong acids or strongly acidic media to remove di- and higher valent metal ions, which can be used within the context of the production of high-purity silica. The invention further relates to the use of special ion exchangers for carrying out the method according to the invention and the resultant high-purity silicas.

Abstract: In order to implement a reliable supply of lubricant to gear unit components during emergency or spinning operation of a gear unit, level control is provided in a lubricant sump of the gear unit as a function of the operating state by means of a control unit associated with a lubricant pump. During normal operation the level is adjusted to dry sump level. In contrast, the lubricant pump is switched off in emergency or spinning operation, so that a splash lubrication level is automatically achieved in the lubricant sump.

Abstract: The invention relates to compounds for producing polymethacrylimide foam materials (PMI foams) with particularly good mechanical properties, in particular with a particularly advantageous elongation at tear. The invention further relates to methods for producing, processing, and using said foam materials. In particular, the invention relates to novel materials, the propensity of which to form tears is clearly reduced in comparison to the prior art. This is tantamount to an elongation at tear that is higher in comparison to the prior art.

Abstract: The invention relates to compositions for producing polymethacrylimide foams having reduced pore size. The inventive method allows production of a microporous foam with an especially homogeneous pore size distribution without having to use insoluble nucleation agents.

Abstract: The present invention relates to a method of purifying strong acids or strongly acidic media to remove di- and higher valent metal ions, which can be used within the context of the production of high-purity silica. The invention further relates to the use of special ion exchangers for carrying out the method according to the invention and the resultant high-purity silicas.

Abstract: The invention relates to a process for producing poly(meth)acrylimide foams and also blocks, sheets and the like composed of such poly(meth)acrylimide foams and also the intermediate articles formed from the copolymer of (meth)acrylic acid and (meth)acrylonitrile, which are all distinguished by a particularly low residual monomer content.

Abstract: In order to implement a reliable supply of lubricant to gear unit components during emergency or spinning operation of a gear unit, level control is provided in a lubricant sump of the gear unit as a function of the operating state by means of a control unit associated with a lubricant pump. During normal operation the level is adjusted to dry sump level. In contrast, the lubricant pump is switched off in emergency or spinning operation, so that a splash lubrication level is automatically achieved in the lubricant sump.

Abstract: The invention relates to compounds for producing polymethacrylimide foam materials (PMI foams) with particularly good mechanical properties, in particular with a particularly advantageous elongation at tear. The invention further relates to methods for producing, processing, and using said foam materials. In particular, the invention relates to novel materials, the propensity of which to form tears is clearly reduced in comparison to the prior art. This is tantamount to an elongation at tear that is higher in comparison to the prior art.

Abstract: The invention relates to compositions for producing poly(meth)acrylamide foam materials having particularly reduced flammability. The present invention further relates to a method for the production, the processing and the use thereof.

Abstract: By using a high molecular weight syrup phase comprising PMMA or PMMI, it is possible to distribute fillers in the polymerization batch so that the distribution of the fillers remains homogeneous during the polymerization. A homogeneous foam results.

Abstract: The invention relates to compositions for producing polymethacrylimide foams having reduced pore size.

Abstract: An integrated viewing assembly for an endoscope having an eyepiece and a handle incorporating a light source. The viewing assembly includes a hub having distal and proximal ends, a middle portion and an outer surface defining a port. The distal end defines a receiver in fluid communication with the port and adapted for onnection to an endotracheal tube. The port is adapted for connection to a gas source. A stylus is constructed and arranged to be fixedly connected to the hub within the receiver. Viewing and lighting conduits are carried by the hub and stylus. A coupler is located on the proximal end of the hub about the viewing conduit and is adapted for connection to the eyepiece. A connector on the middle portion of the hub connects to the handle. The receiver is located a predetermined distance from the longitudinal axis of the handle to facilitate tactile contact with a flange on the endotracheal tube connected to the receiver by the practitioner holding the handle.

Abstract: The invention relates to processes for preparing derivatized and partially derivatized polymethacrylimides. The properties of the material can be adjusted by appropriate selection of the derivatization, in terms of number and type.

Abstract: The present invention provides silica particles, which include the following physical properties: BET surface area: 100-700 m2/g; DBP absorption: 100-500 g/100 g; tamped density: 100-250 g/l; ALPINE sieve residue>63?: <5%; and particle sizes (cumulative volume distribution): d95<40 ?m; d50<20 ?m; and d5<10 ?m. The present invention also provides a process for producing silica having a narrow particle size distribution, which includes drying a silica suspension in a pulse combustion dryer to produce silica particles having the following particle size distribution (cumulative volume distribution): d5<10 ?m; d50<20 ?m; and d95<40 ?m.

Abstract: The present invention relates to compositions for producing poly(meth)acrylimide foams having reduced flammability which comprise ammonium polyphosphate and/or zinc sulphide. Furthermore, the present invention also provides poly(meth)acrylimide moulding compositions and also poly(meth)acrylimide foams obtainable from the abovementioned compositions and moulding compositions. The present invention further relates to processes for producing poly(meth)acrylimide foams having reduced flammability.