摘要:
Bridged monocyclopentadienyl derivatives of a Group 4 metal are prepared by contacting a corresponding bis(cyclopentadienyl) metal complex with an alkali metal derivative or alkaline earth metal derivative of a hydrocarbyl ligand R, which is optionally substituted with one or more amino, phosphino, ether, thioether, or silyl groups. The bis(cyclopentadienyl) Group 4 metal complexes can be prepared by contacting a compound corresponding to one of the formulas (Cp).sub.3 MQ.sub.n X.sub.t, (Cp).sub.2 MQ.sub.n X.sub.t+1, or CpMQ.sub.n X.sub.t+2 and a dianionic salt compound corresponding to the formula: (L.sup.+x).sub.y (Cp*-Z-Y).sup.-2 or ((LX').sup.+x).sub.y (Cp*-Z-Y).sup.-2. An addition polymerization catalyst comprising a bis(cyclopentadienyl) Group 4 metal complex and an activating cocatalyst, and an addition polymerization process using such a catalyst.
摘要:
A magazine particularly for magnetic diskettes, such as of the type disclosed in U.S. Pat. No. 3,668,658, including nearly square side panels, and oblong top and back panels and a bottom connecting the side panels leaving one end of the magazine open for withdrawal of diskettes stored therein. The inside surfaces of the top panel and bottom have corresponding grooves formed therein for reception of the diskettes in vertical disposition, and the grooves in the bottom are narrower than the grooves in the top to provide accurate positioning of the diskettes at their bottoms while allowing a little warp of the diskettes about vertical axes. The inside surface of the back panel is plane and unribbed to accommodate slight diskette warp about horizontal axes. A spring wire retainer extends upwardly from the magazine bottom across the lower part of the open end of the magazine to releasably retain diskettes in the magazine, and the side panels are notched close to the magazine bottom to allow an easy gripping of the diskettes adjacent the magazine bottom for withdrawal of the diskettes.
摘要:
Battery electrolyte solutions contain certain ester solvents, a lithium salt and vinylene carbonate, vinyl ethylene carbonate or fluoroethylene carbonate. Batteries containing these solvents have excellent specific discharge capacities and reduced weight compared to batteries in which the electrolyte is based on ethylene carbonate.
摘要:
A wireless communication user terminal includes a controller communicably coupled to a transceiver. The controller is configured to tune the transceiver to transmit on a narrowband uplink control channel within a wideband frequency resource. The uplink control channel includes a pair of uplink control channels separated within the wideband frequency resource wherein the pair of uplink control channels are each located within a corresponding PUCCH resource region. The controller is also configured to change a frequency location of at least one of the uplink control channels, within the corresponding PUCCH resource region, away from an edge of the wideband frequency resource.
摘要:
A monomer compound has the formula (I): where each R1, R2, and R3 is independently H, F, C1-10 alkyl, fluoro-substituted C1-10 alkyl, C1-10 cycloalkyl, or fluoro-substituted C1-10 cycloalkyl, provided that at least one of R1, R2, or R3 is F; n is an integer of from 1 to 10, A is a halogenated or non-halogenated C2-30 olefin-containing polymerizable group, and G+ is an organic or inorganic cation. The monomer is the reaction product of a sultone precursor and the oxyanion of a hydroxy-containing halogenated or non-halogenated C2-30 olefin-containing compound. A polymer includes the monomer of formula (I).
摘要:
Battery electrolyte solutions contain certain ester solvents, a lithium salt and vinylene carbonate, vinyl ethylene carbonate or fluoroethylene carbonate. Batteries containing these solvents have excellent specific discharge capacities and reduced weight compared to batteries in which the electrolyte is based on ethylene carbonate.
摘要:
A method of preparing a monomer comprises reacting a sultone of the formula (I): wherein each R is independently F, C1-10 alkyl, fluoro-substituted C1-10 alkyl, C1-10 cycloalkyl, or fluoro-substituted C1-10 cycloalkyl, provided that at least one R is F; n is an integer of from 0 to 10, and m is an integer of 1 to 4+2n, with a nucleophile having a polymerizable group. Monomers, including a photoacid-generating monomer, may be prepared by this method.
摘要:
Phosphorus-sulfur compounds have flame retardant activity in organic polymer systems. The phosphorus-sulfur compounds can be represented by the structure: wherein X is oxygen or sulfur, T is a covalent bond, oxygen, sulfur or nitrogen, provided that at least one of X and T is sulfur, each X′ is independently oxygen or sulfur, each m is independently zero or 1 when X′ is oxygen and zero, 1 or 2 when X′ is sulfur, n is at least 1 and preferably at least 2, each R is independently an unsubstituted or inertly substituted hydrocarbyl group or the R groups together form an unsubstituted or inertly substituted divalent organic group and A is an organic linking group.
摘要:
Phosphorus-sulfur compounds have flame retardant activity in organic polymer systems. The phosphorus-sulfur compounds can be represented by the structure: wherein X is oxygen or sulfur, T is a covalent bond, oxygen, sulfur or nitrogen, provided that at least one of X and T is sulfur, each X′ is independently oxygen or sulfur, each m is independently zero or 1 when X′ is oxygen and zero, 1 or 2 when X′ is sulfur, n is at least 1 and preferably at least 2, each R is independently an unsubstituted or inertly substituted hydrocarbyl group or the R groups together form an unsubstituted or inertly substituted divalent organic group and A is an organic linking group.
摘要:
According to a particular embodiment, an imaging system is provided that includes an imaging device operable to image a hard-drive of a target device. The imaging device includes a first connection to the target device and a second connection to an output capture device, whereby both connections facilitate an information flow of data. The imaging device includes a preprogramming element that includes a stored version of preprogramming instructions, which direct the imaging device on how to image the hard-drive autonomously.In more specific embodiments, the instructions are triggered when the imaging device is powered ON. The instructions can verify the first connection to the hard-drive and the second connection to the output capture device. The instructions can include a template that reflects a loaded routine for imaging the hard-drive based on a particular imaging job.