摘要:
A catalyst structure for treating exhaust gas from a lean burn internal combustion engine comprises a substrate monolith comprising a lean NOX catalyst (LNC) composition associated with at least one partial oxidation catalyst (POC), wherein the LNC composition is selected from the group consisting of: (a) silver or a silver compound supported on alumina; and (b) at least one metal selected from the group consisting of copper (Cu), iron (Fe), cobalt (Co) and cerium (Ce) supported on at least one zeolite, and wherein the at least one POC is selected from the group consisting of: (i) a bulk oxide, a bulk composite oxide or a bulk mixed oxide comprising at least one metal selected from the group consisting of manganese (Mn), iron (Fe), cerium (Ce) and praseodymium (Pr); and (ii) at least one of rhodium (Rh) and palladium (Pd) disposed on at least one inorganic oxide support.
摘要:
A process for manufacture of a dendritic polyether comprising a core, derived from a compound having two or more hydroxyl groups, and at least one branching generation being built up from at least one hydroxyoxetane having one oxetane group and at least one hydroxyl group is disclosed. The process comprises ring opening addition to said core and ring opening polymerization of said hydroxyoxetane. A mixture of the core compound and at least one cationic initiator is prepared and said hydroxyoxetane is fed to said mixture at a rate resulting in and/or maintaining a reaction temperature below onset at thermal degradation and in an amount resulting in at least one branching generation. The initiator is present in an amount of 0.1–0.5% by weight calculated on said core and said oxetane, preferably in an amount giving a ratio hydroxyl groups to initiator of between 1:0.01 and 1:0.05. Yielded dendritic polyether is sebsequently neutralised by addition of at least one alkaline compound and optionally purified.
摘要:
The present invention provides a method of forming a chemical mechanical polishing pad comprising, providing a tank with polymeric materials, providing a storage silo with microspheres and providing an isocyanate storage tank with isocyanates. The invention further provides delivering the polymeric materials and the microspheres to a premix prep tank, forming a pre-mixture of the polymeric materials and the microspheres, delivering the pre-mixture to a premix run tank and forming a mixture of the pre-mixture and the isocyanates. Further the invention provides injecting the mixture into a closed mold, curing the polishing pad in the mold and degassing at least one of the tank, isocyanate storage tank and the mold.
摘要:
The present invention provides a chemical mechanical polishing pad comprising, a polymeric matrix having microspheres dispersed therein, the polymeric matrix being formed of a water-based polymer or blends thereof. The present invention provides a water-based polishing pad with reduced defectivity and improved polishing performance.
摘要:
The present invention relates to substituted triazole compounds and compositions comprising substituted triazole compounds. The invention further relates to methods of inhibiting the activity of Hsp90 in a subject in need thereof and methods for preventing or treating hyperproliferative disorders, such as cancer, in a subject in need thereof comprising administering to the subject a substituted triazole compound of the invention, or a composition comprising such a compound.
摘要:
A data transfer system has a bus having a plurality of bus lines, with the bus lines including at least a first and a second group of signal lines and at least a first and a second clock line. A host device is coupled to the plurality of bus lines. A first connector generates and outputs a first source synchronous signal on the first clock line and a first plurality of data signals on the first group and a second connector generates and outputs a second source synchronous signal on the second clock line and a second plurality of data signals on the second group. The host device is operable to respond to the first and second source synchronous signals and the first and second plurality of data signals to latch the first plurality of data signals with the first source synchronous signal and to latch the second plurality of data signals with the second source synchronous signal.
摘要:
An improved pad and process for polishing metal damascene structures on a semiconductor wafer. The process includes the steps of pressing the wafer against the surface of a polymer sheet in combination with an aqueous-based liquid that optionally contains sub-micron particles and providing a means for relative motion of wafer and polishing pad under pressure so that the moving pressurized contact results in planar removal of the surface of said wafer, wherein the polishing pad has a low elastic recovery when said load is removed, so that the mechanical response of the sheet is largely anelastic. The improved pad is characterized by a high energy dissipation coupled with a high pad stiffness. The pad exhibits a stable morphology that can be reproduced easily and consistently. The pad surface resists glazing, thereby requiring less frequent and less aggressive conditioning. The benefits of such a polishing pad are low dishing of metal features, low oxide erosion, reduced pad conditioning, longer pad life, high metal removal rates, good planarization, and lower defectivity (scratches and Light Point Defects).
摘要:
The invention describes a silicone oil emulsion stabilized with soap. The soap is formed in situ from one or more fatty acids and a cation of a base during the emulsification process. The invention also provides a method of forming a soap stabilized oil-in-water emulsion including the steps of forming a first mixture comprising a silicone oil, a base, and initial water, combining the first mixture with a fatty acid component and emulsifying the resultant combination.
摘要:
Disclosed is a compound represented by Structural Formula (I): R1 is a substituted or unsubstituted 2-imidazolyl group which is optionally fused to a substituted or unsubstituted aryl group. Z1 is ═O, ═S, ═NOR11, or ═NR11. R is represented by a Structural Formula selected from (II)-(VII): The variables in Structural Formulas (II)-(VII) are described below.
摘要:
The invention describes a silicone oil emulsion stabilized with soap. The soap is formed in situ from one or more fatty acids and a cation of a base during the emulsification process. The invention also provides a method of forming a soap stabilized oil-in-water emulsion including the steps of forming a first mixture comprising a silicone oil, a base, and initial water, combining the first mixture with a fatty acid component and emulsifying the resultant combination.