Abstract: Polymeric compositions are provided comprising a first plurality of first monomeric units comprising an aromatic group with at least one substituent selected from alkyl, heteroalkyl, alkenyl, heteroalkenyl, alkynyl, heteroalkynyl, aryl, arylalkyl, heteroaryl, heteroarylalkyl, and amino, and a second plurality of second multi-functional monomeric units, wherein each multi-functional monomeric unit is capable of forming a branching point in the polymeric composition, thereby resulting in a branched material. Invention compositions therefore have an altered morphology relative to similar non-branched materials. When used to form an EL layer within an EL device, this altered morphology results in EL layers with improved efficiency, which in turn results in more efficient EL devices.

Abstract: The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.

Abstract: Polymeric compositions are provided comprising aromatic monomeric units selected from fluorene, spirofluorene, and bridged biphenyl, wherein the polymeric composition has at least two different substituents selected from alkyl, heteroalkyl, alkenyl, heteroalkenyl, alkynyl, heteroalkynyl, aryl, heteroaryl, arylalkyl, and heteroarylalkyl. The variation of substituents alters the morphology of invention polymeric compositions relative to polymers that lack variation of substituents. When used as an active layer(s) in electroluminescent (EL) devices, the altered morphology results in EL layers with improved efficiency, which in turn results in more efficient EL devices. The polymeric compositions of the invention also have increased solubility in solvents and better film-forming properties.

Abstract: The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.

Abstract: The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.

Abstract: The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.

Abstract: The present invention relates to polymeric metal complexes comprising metallic complexes covalently bound to conjugated polymers and luminescent materials containing such polymeric metal complexes. The invention further relates to electronic devices in which the active layer includes such polymeric metal complexes.

Abstract: The present invention is generally directed to copolymers of fluorene. It further relates to devices that are made with the copolymers.

Abstract: The invention relates to a method of manufacturing a metal matrix suitable for use in the manufacture of optical discs, in which a master plate is used which comprises a recording double layer of a synthetic resin in which each layer comprises a laser light-absorbing dye, the master plate is exposed to modulated laser light in which the laser light in both layers of the recording layer is absorbed and in which as a result of the exposure information bits are formed in the form of bumps having variable longitudinal dimensions and the same width dimensions and the master plate on the side of the recording layer comprises a metal layer which is separated from the master plate, as well as a master plate which is suitable for use in the method described hereinbefore.

Abstract: Method of recording information, recording element manufactured according to the method and method of producing a metal matrix.Recording in which a recording double layer which has an absorbing dye is exposed to laser light of a higher and a lower energy level, in which by exposure to laser light of the lower energy level, a bump is formed in the recording layer and in which by exposure to laser light of the higher energy level a bulge is formed which at the surface comprises a groove, as well as a recording element obtained by using the method and a method of manufacturing a metal copy from the recording element.

Abstract: Recording in which a recording double layer which has an absorbing dye is exposed to laser light of a higher and a lower energy level, in which by exposure to laser light of the lower energy level, a bump is formed in the recording layer and in which by exposure to laser light of the higher energy level a bulge is formed which at the surface comprises a groove, as well as a recording element obtained by using the method and a method of manufacturing a metal copy from the recording element.

Abstract: Each engine of a multi-engine aircraft is monitored to determine if it has become inoperative during a critical flight mode such as takeoff or landing. If so, the propeller of the inoperative engine is feathered and the remaining engine or engines is uptrimmed. A "state machine" indicative of the various states of the aircraft is established and the present state of the aircraft is stored in a non-volatile memory; if an electrical power interruption occurs during a critical flight mode the identity of the present operating state may be quickly recalled for immediate refeathering of an inoperative engine and reuptrimming of the remaining engine or engines.