摘要:
A control system for a blind microwave radiation tool a workpiece is described. The controlled system automatically tunes the cavity containing the workpiece. The control system automatically controls the temperature of the workpiece according to a predetermined temperature versus time schedule. Control system automatically determines when the workpiece has reached a particular predetermined physical condition. To achieve these results the control system automatically monitors applied power, reflected power or current temperature and automatically controls the microwave antennae location and the cavity short location in order to maintain the cavity in resonance and to determine when to exit without operator intervention. Control system can run on a small computer and is useful for automatically curing polyamic acid to polyimide to a predetermined percent cure automatically without operator intervention.
摘要:
A control system for a blind microwave radiation tool a workpiece is described. The controlled system automatically tunes the cavity containing the workpiece. The control system automatically controls the temperature of the workpiece according to a predetermined temperature versus time schedule. Control system automatically determines when the workpiece has reached a particular predetermined physical condition. To achieve these results the control system automatically monitors applied power, reflected power or current temperature and automatically controls the microwave cavity volume and shape and launch structure including antennae location, cavity short location, cavity diameter, coupling loop position, etc. in order to maintain the cavity in resonance and to determine when to exit without operator intervention. Control system can run on a small computer or an embedded controller and is useful for automatically curing polyamic acid to polyimide to a predetermined percent cure, processing preimpregnated glass cloth in a continuous manner which can be used in circuit boards and drying and partial curing of web-like materials automatically without operator intervention.
摘要:
A polymer blend composition, capable of being made electrically conductive by application of heat having an electrically conductive upon doping polymer in undoped form; the undoped polymer is selected from the group consisting of substituted and unsubstituted polyparaphenylenevinylenes, polyanilines, polyazines, polythiophenes, poly-p-phenylene sulfides, polyfuranes, polyselenophenes, polyacetylenes filtered from soluble precursors and combinations and blends thereof, compounded and blended at a molecular scale with a dielectric polymer; wherein the dielectric polymer is selected from the group consisting of interpolymers of acrylonitrile-butadiene-styrene, acetal acrylic liquid crystal polymers, polybutylene terephthalate, polycarbonate, polyester, polyetherimide, polyethersulfone, polyethylene, polyethylene terephthalate, polyphenylene oxide, polyphenylene sulfide, polypropylene, polystyrene, polyurethane, polyvinychloride, styrene-acrylonitrile copolymer, fluoropolymers, nylon polyesters, and thermoplastic elastomers, and a thermally deblockable dopant selected from the group consisting of triflates, tosylates and borates, the electrically conductive upon doping polymer having enhanced solubility in undoped form with said dielectric polymer to form a compatible molecularly mixed blend in solution; doping of the polymer occurs only after exposure to heat.
摘要:
A solid state chain extension method provides for the formation of a solid state film comprised of a high molecular weight polymer by chain extending a deblocked Lewis base with Lewis acid oligomers while the reactants are in a solid state form. In one embodiment, a negative resist is prepared by selectively exposing regions of the solid state film. The Lewis base is deblocked at the exposed regions by a suitable deblocking means. The Lewis acid oligomers and the deblocked Lewis base chain extend at the exposed regions. Development of the film removes the non-polymerized reactants. Optionally, the Lewis acid oligomers, when radiation-cross-linking, are cross-linked with one another prior to deblocking the Lewis base to form a negative resist. The cross-linked oligomers polymerize with the subsequently deblocked base to provide a high molecular weight polymer film. In an alternative embodiment, a positive resist is used by degrading and removing photo-sensitive Lewis acid oligomers using selective exposure lithography techniques and, subsequently, deblocking the Lewis base and chain extending the remaining oligomers with the deblocked Lewis base at the unexposed regions.
摘要:
This invention is concerned with an electrically conductive polymer blend composition which is a liquid compatible blend, comprising a doped product formed form blending a first solution comprising a Lewis base electrically conductive polymer in undoped form in a first organic solvent with a second solution comprising a Lewis acid polymer dopant in a second organic solvent, wherein said Lewis acid polymer dopant dopes said Lewis base electrically conductive polymer in undoped form to obtain said electrically conductive polymer blend, the resulting doped conductive product being soluble in the combination of said first and said second organic solvents and mixable at the molecular level.
摘要:
The instant invention is drawn vibrational methods of deaggregating electrically conductive polymers. Said methods include the steps of:I) providing an intrinsically conductive polymer comprising a specific morphology;II) determining by experimental or theoretical means a desired degree of aggregation for said intrinsically conductive polymer;III) agitating said intrinsically conductive polymer by a method selected from the group consisting of ultrasound, vibration, shear mixing and cavitation, said agitation being performed at a rate sufficient to achieve the determined degree of aggregation.
摘要:
The present invention provides a wiring module containing a plurality of laminated polymer layers containing defined electronic circuitry which can be thermoformed into desired three dimensional shapes without damaging the internal wiring at the region of thermoform stress. More particularly, the invention provides a thermoformed, three dimensional wiring module prepared by thermoforming a laminate comprising a plurality of laminated, thermoformable polymer insulating layers containing conductive wiring circuitry on at least one surface of the layers, the layers being assembled to form conductive interconnect paths within the module, the module further characterized in that the conductive wiring circuitry is present only on internal low stress layers of the laminate at the region of thermoformed bends present in the module.
摘要:
The present invention relates to electrically conductive polymer blend compositions comprising a non-conducting polymeric component and an electrically conducting polymeric component and specific applications to which the blend compositions can be put.
摘要:
The present invention is directed to vibrational methods of fabricating electrically conducting polymers and precursors thereof in which the polymer chains are deaggregated. Such deaggregated conducting polymers and precursors thereof exhibit better solution processability and higher electrical conductivity than do the corresponding aggregated polymers. The polymers in the non-doped precursor form or in the conducting form in solution or during the polymerization process are exposed to ultrasound and shear mixing. Due to this treatment, the chains become deaggregated. Furthermore, ultrasound and shear mixing is used during the doping of the precursor polymers. This treatment allows more uniform doping, enhanced solubility, and higher electrical conductivity. The solutions treated with ultrasound/shear mixing are subsequently processed into a structural part, a film, or a fiber.
摘要:
Photosensitive compositions containing a polyimide precursor and a complex cation of a polymerizable carboxylic acid functional compound with a tertiary amino functional group; and use thereof to provide a pattern.