Abstract: A flexible light emitting system is provided and includes a flexible printed circuit layer that has a substrate with a top in surface and a bottom surface and a plurality of traces of silver paste disposed on the top surface. A plurality of micro light emitting diodes are disposed on the top surface and soldered to the plurality of traces to provide light. An elastic interlayer film of ethylene vinyl acetate copolymer extends over the top surface of the flexible printed circuit layer for protection of the plurality of micro light emitting diodes and the plurality of traces. A diffuser layer extends over the elastic interlayer film opposite the flexible printed circuit layer to diffuse the light from the plurality of micro light emitting diodes. An optically transparent material layer extends between the elastic interlayer film and the diffuser layer to provide a uniform light appearance.

Abstract: Processes for forming propylene are described herein. The processes generally include reacting a metathesis feed stream including n-butene with ethylene in the presence of a metathesis catalyst via a metathesis reaction to form a metathesis product stream including propylene, ethylene, butene and C5+ olefins; separating the propylene from the ethylene, butene and C5+ olefins in the metathesis product stream; and recycling at least a portion of the C5+ olefins to the metathesis reaction.

Abstract: A process for producing propylene and isoprene from a feed stream comprising 1-butene and isobutene is disclosed. The feed stream is reacted in a catalytic distillation reactor containing an olefin isomerization catalyst to produce an overhead stream comprising 2-butene and isobutene and a bottoms stream comprising 2-butene. The overhead stream is reacted in the presence of a metathesis catalyst to produce propylene and isoamylenes. Isoprene is produced by dehydrogenation of isoamylenes.

Abstract: This invention is a process for producing diisobutylene from isobutylene. The process comprises first passing water through a downflow reactor containing a bed of sulfonic acid resin to produce an effluent stream having a pH of at least 5, then dimerizing isobutylene by contacting the sulfonic acid resin with a reaction feed comprising isobutylene and tertiary butyl alcohol. The downflow reactor comprises a bottom, an inlet located above the resin bed, an outlet located below the resin bed, and inert material in the space from the bottom of the reactor to at least above the outlet.

Abstract: A process for producing propylene and isoprene from a feed stream comprising 1-butene and isobutene is disclosed. The feed stream is reacted in a catalytic distillation reactor containing an olefin isomerization catalyst to produce an overhead stream comprising 2-butene and isobutene and a bottoms stream comprising 2-butene. The overhead stream is reacted in the presence of a metathesis catalyst to produce propylene and isoamylenes. Isoprene is produced by dehydrogenation of isoamylenes.

Abstract: This invention is a process for producing diisobutylene from isobutylene. The process comprises first forming dry sulfonic acid resin by contacting water wet sulfonic acid resin catalyst with a first reaction feed comprising isobutylene under conditions effective to produce tertiary butyl alcohol from the reaction of isobutylene and water, and then contacting the dry sulfonic acid resin with a second reaction feed comprising isobutylene under conditions effective to oligomerize isobutylene to produce diisobutylene.

Abstract: A method of constructing a highly labeled linear polymeric molecule for use in any desired application, and linear polymeric molecules of such structure. The polymeric molecule is a nucleic acid constructed from a large number of one or more types of monomeric oligonucleotide units that are attached together to form an extended strand. Within each polymer, at least one type of monomeric unit is provided which is bound to or designed to bind to a label moiety, providing a polymer with a large number of repeat sequences designed for labeling purposes, resulting in extremely effective signal carrying molecule of considerable versatility.

Abstract: A thin film inductive head comprising a bottom pole, an insulation region fabricated on the bottom pole, a cavity layer formed on the insulation region, the cavity layer containing an aperture, and a top pole deposited on the cavity layer so that the top pole lies substantially in the aperture of the cavity layer and has a height at least partially defined by the depth of the aperture.

Abstract: A fluidized bed combustion system is disclosed and in particular a fluidized bed combustion system particularly well suited for the combustion of oil shale, generating steam thereby. The fluidized bed combustion system includes a furnace volume having a multi-chambered upper segment thereof, a deentrainment zone, a fluidized bed having a plurality of isolatable segments thereof, a fluidized bed ash cooler having a plurality of isolatable segments thereof wherein the fluidized bed ash cooler is in fluid communication with the furnace volume, a fuel supply means in fluid communication with the furnace volume for delivering oil shale thereto for combustion therein, a backpass volume defined by a plurality of backpass wall tubes integral to a thermodynamic steam cycle and in fluid flow relation with the furnace volume and a plurality of circulatory fluid flow paths integral to a thermodynamic steam cycle and operative to conduct the flow of steam or water therethrough.

Abstract: A process for hydrogenating aqueous mixtures of 4-hydroxybutanal and 3-hydroxy-2-methylpropanal is disclosed. The process uses a metallic Pt--Ru catalyst supported on .gamma.-alumina. The process gives improved yields of 2-methyl-1,3-propanediol while minimizing the formation of unwanted by-products such as isobutyl alcohol and tetrahydrofuran.

Abstract: A thin-film head electromagnetic transducer has two pole pieces which define a gap. The surface of at least one of the pole pieces has a linear edge defining one side of the gap and has two linear edges which are at an acute angle to the linear edge defining the gap and are symmetric about and abut at an axis perpendicular to the linear edge defining the gap.

Abstract: An inverted magnetoresistive head is disclosed. The inverted magnetoresistive head includes a reader positioned on top of a writer. The writer includes a bottom pole, a polymer insulator, a write gap, a pole tip and a top pole. The reader includes a bottom shield, a first reader gap, a magnetoresistive element, electrical contacts, a second reader gap and a shield.

Abstract: A method of fabricating an inverted magnetoresistive head is disclosed. The method includes fabricating a writer. The writer includes a bottom pole positioned within a recessed substrate. The bottom pole is filled with copper coils and polymer. A write gap, a pole tip, and a top pole/bottom shield are fabricated on a portion of the polymer. A top surface of both the polymer and the write gap are planarized to provide a substantially smooth surface upon which a reader can be placed. The reader is fabricated on top of the writer and includes a first reader gap, a magnetoresistive element, a second reader gap, and a shield.

Abstract: A thin-film head electromagnetic transducer has two pole pieces which define a gap. The surface of at least one of the pole pieces has a linear edge defining one side of the gap and has two linear edges which are at an acute angle to the linear edge defining the gap and are symmetric about and abut at an axis perpendicular to the linear edge defining the gap.

Abstract: A process is provided whereby phenol is separated from 1-phenyl ethanol, acetophenone or mixtures by extractive distillation with sulfolane as extractive distillation agent which decreases phenol volatility relative to 1-phenyl ethanol and acetophenone.

Abstract: Isobutane containing a significant amount of isobutylene is treated at conditions effective to oligomerize a predominance of the isobutylene, isobutane substantially free of isobutylene is separated from the oligomer products, and the isobutane substantially free of isobutylene is oxidized to tertiary butyl hydroperoxide.

Abstract: A process for recovering a Group VIII metal from an organic solution is disclosed. The organic solution is contacted with an acidic ion exchange resin that has sulfonic acid active groups. The invention provides an effective and economical way to recover valuable transition metals from dilute organic solutions.

Abstract: A load arm assembly for a disk drive including a load beam, a head for communicating with a recording medium, and a gimbal spring interconnecting the head and the load beam. The interconnection includes a pivot having a first contact surface in point contact with a second contact surface. In accordance with the present invention, a coating is applied to at least one of the first and second contact surfaces and has a low frictional coefficient for reducing the friction between the first and second contact surfaces.

Abstract: An improved composite head assembly is achieved by using bonding glass to fasten the back leg of the core to an air-bearing slider. The improved bonding of the present invention results in improved rigidity of the head assembly and virtually eliminates tail draggers associated with the prior art.

Abstract: An air bearing slider for supporting an electrical magnetic transducer over a rotating magnetic disk has a slider body and first and second side rails. The slider body has a leading edge, a trailing edge and first and second side edges. First and second side rails are positioned along the first and second side edges, respectively. The first and second side rails have a convex crown ranging between about 0.50 micro inches and about 3.0 micro inches. An interface surface of the slider facing the surface of the magnetic disk has a three-dimensional roughness average ranging between about 0.20 micro inches and about 0.60 micro inches. The three-dimensional roughness average is an average of depth variations across the surface of the slider and is dependent upon crown, camber, twist, flatness, cylindrical sag, profile variations and edge blend of the air bearing slider.