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6482529 |
Polymeric coating compositions, polymer coated substrates, and methods of making and using the same
This invention relates to a coated substrate comprising (i) a substrate and (ii) a coating thereupon comprising a polymeric composition formed from (a) twenty-five to ninety-nine parts by weight of...
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6475624 |
Polyimide/fluororesin laminates, producing method thereof, and insulating tape for wire-winding using the same
A polyimide/fluororesin laminate comprises a polyimide film and a fluororesin layer. The tear propagation resistance strength of the polyimide film after being exposed to 150° C. 100% RH...
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6472080 |
Thin copper film directly bonded polyimide film and method of manufacturing the same
Provided is a thin copper film directly bonded polyimide film in which a thin copper film is directly and strongly connected to a polyimide film. This thin copper film directly bonded polyimide...
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6468664 |
Poly(imide-siloxane) compound for tapeless LOC packaging
The present invention relates to a poly(imide-siloxane) compound useful as passivation layer for packaging tapeless LOC, which is produced by reacting in a polar solvent a diaminosiloxane compound...
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6468639 |
Single-application polyimidosiloxane-based coating material and cured film
A single-application polyimidosiloxane coating material comprising a uniformly mixed solution composition of a polyimidosiloxane with an epoxy resin-reactive group in the molecule, an epoxy resin...
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6465536 |
Superabsorbing fibers and films and processes for preparing same
Superabsorbent fiber and film compositions comprising partially acidified, hydrolyzed, internally plasticized, crosslinked, superabsorbing fibers or film derived from polysuccinimide and processes...
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6461745 |
Copper foil for tape carrier and tab carrier tape and tab tape carrier using the copper foil
A copper foil for a TAB tape carrier, comprising (a) a copper foil having a shiny surface and a mat surface; and (b) an alloy layer comprising nickel, cobalt and molybdenum, which is formed at...
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6461738 |
Polyimide-based insulating film composition, insulating film and insulating film-forming method
A polyimide-based insulating film composition comprising (a) 100 parts by weight of an organic solvent-soluble polyimidosiloxane obtained from a tetracarboxylic acid component and a diamine...
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6455631 |
Aqueous polyurethane dispersions containing modified hydrazide groups and their use in one-component thermoset compositions
The present invention relates to aqueous polyurethane dispersions wherein the polyurethanes contain terminal hydrazide groups and correspond to the formula wherein the terminal, modified...
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6451960 |
Polyimides for optical alignment of liquid crystals
The present invention relates to amine compositions useful in the preparation of polyimides. The polyimides can be used for inducing alignment of a liquid crystal medium with polarized light in...
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6440576 |
Metal plated aromatic polyimide film
A metal-plated aromatic polyimide film composed of an aromatic polyimide resin film, a surface layer of which contains a dispersed palladium metal or a palladium compound, and a metal layer which...
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6425993 |
Membrane electrode assembly and method of its manufacture
A method is provided for making a membrane electrode that employs a composite membrane, which include both a porous membrane and an ion conducting electrolyte, by partially filling a porous...
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6420018 |
Low thermal expansion circuit board and multilayer wiring circuit board
A low thermal expansion circuit board 1 on which a semiconductor element can be mounted with ease and high reliability, which comprises an insulating layer 3 having an Ni—Fe—based alloy...
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6417321 |
Cured fluorenyl polyimides
A thermally cured polyimide is provided, and in particular a crosslinked polyimide, comprising a fluorenyl diamine and comprising an aromatic ring having at least one C1-C10 branched or unbranched...
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6416873 |
Intermediate transfer material and image-forming apparatus
An intermediate transfer material which is disposed between a latent image-carrier and a recording medium and is primary-transferred thereon a toner image formed on the latent image-carrier,...
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6414105 |
Aromatic polycarbodiimide and sheet thereof
An aromatic polycarbodiimide comprising a structural unit represented by the following formula (I): where R is an organic group having 3 or more carbon atoms, and n is an integer of 2 to 300,...
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6414089 |
Method of manufacturing polymer films having second order non-linear optical properties, polymer films, and non-linear optical element
A method of manufacturing a polymer film having second order non-linear optical properties which has excellent stability of orientated molecules and does not become disorientated, and a polymer...
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6406741 |
Method of making a polyimide layer containing fluorinated carbon material
A method of making a polyimide layer containing fluorinated carbon therein includes subjecting a layer comprised of a polyimide precursor material and the fluorinated carbon to a first heating at a...
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6403213 |
Highly filled undercoat for non-stick finish
The invention relates to a composition applicable as a undercoat for a non-stick coating on a substrate, comprising (a) inorganic filler of ceramic particles, the particles having an average...
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6395399 |
Flexible printed substrate
A flexible printed substrate is constituted of metallic foil and provided thereon a polyimide layer which is produced by forming a film of a polyamic acid varnish on the metallic foil, followed by...
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6395386 |
Clear, high-barrier polymer-platelet composite multilayer structures
This invention relates to novel multilayer formed articles including, but not limited to containers such as bottles, tubes, pipes, preforms and films (including oriented films such as biaxially...
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6395391 |
Adhesive tape for electronic parts
An adhesive tape for electronic parts which comprises a metal substrate and an adhesive layer A and an adhesive layer B and an adhesive layer C laminated in order wherein said adhesive A comprises...
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6392004 |
Polyimides for high-frequency applications
An element of a gigahertz electronic device is provided comprising a polyimide selected to have an imide equivalent weight of 375 or greater. The polyimide preferably has a dielectric loss at 12.8...
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6383578 |
Polyimide angularity enhancement layer
An angularity enhancement layer in a liquid crystal display, which display comprises a liquid crystal cell, wherein the angularity enhancement layer includes a negative birefringent polyimide layer...
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6379784 |
Aromatic polyimide laminate
An aromatic polyimide laminate composed of an aromatic polyimide composite film, a metal film, and a release film is disclosed. The aromatic polyimide composite film is composed of an aromatic...
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6379809 |
Thermally stable, piezoelectric and pyroelectric polymeric substrates and method relating thereto
A thermally stable, piezoelectric and pyroelectric polymeric substrate was prepared. This thermally stable, piezoelectric and pyroelectric polymeric substrate may be used to prepare...
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6372358 |
Covercoat composition for electronic components
A covercoat composition for electronic components that has improved performance to environmental and processing exposure. The covercoat composition has 15-30 wt. % of polyamide-imide, a...
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6368716 |
Flame retardant adhesive composition and laminates
This invention is directed to an adhesive composition comprising: A. 80-98% by weight, based upon the total amount of adhesive dry solids, of at least one latex copolymer comprising: (1) 20-55% by...
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6362359 |
One-component thermoset coating compositions
The present invention relates to compounds containing modified hydrazide groups and corresponding to formula I wherein R represents the residue obtained by removing the isocyanate groups from a...
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6359107 |
Composition of and method for making high performance resins for infusion and transfer molding processes
A composition of and method for making high performance imide resins that are processable by resin transfer molding (RTM) and resin infusion (RI) techniques were developed. Materials with a...
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6355357 |
Flexible printed board, polyamic acid and polyamic acid varnish containing same
A flexible printed board, in which a polyimide resulting from the imidation of a polyamic acid obtained by the addition polymerization of diamines and acid dianhydrides is formed as an insulating...
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6352750 |
Seamless tubular electrically-semiconductive aromatic polymide film and process for producing the same
The present invention provides an seamless tubular electrically-semiconductive film excellent in heat resistance, chemical resistance and mechanical property with excellent electrical resistance...
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6350844 |
Polyimide film and electric/electronic equipment bases with the use thereof
A polyimide film having sufficiently excellent characteristics such as a sufficiently high elastic modulus, a low water absorption, a small coefficient of moisture-absorption expansion, a small...
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6348245 |
Polymide photo alignment film from 3,3′,4,4′-benzophenone tetracarboxylic dianhydride and ortho-substituted aromatic diamines for liquid crystal displays
The present invention relates to polyimide photo alignment films for liquid crystal display devices comprising an aromatic tetracarboxylic dianhydride component containing...
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6346298 |
Flexible board
A flexible board comprises metal foil 1 and provided thereon a laminated polyimide-based resin layer 2 of a three-layer structure comprising a first polyimide-based resin layer 2 a , a second...
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6340518 |
Flexible metal-clad laminates and preparation of the same
A flexible metal foil laminate sheet wherein a polyimide layer comprises a polyimide laminate having a three-layer structure in which thermoplastic polyimide layers are formed on both the surfaces...
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6335416 |
Polyimide film and process for producing the same
A polyimide film, which is produced from polyamide acid prepared through the reaction of p-phenylenebis(trimellitic acid monoester anhydride), oxydiphthalic acid dianhydride, p-phenylenediamine,...
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6319597 |
Polyimide composite film
A polyimide composite film favorably employable for preparing a heat-resistant metal foil/polyimide film composite is composed of a polyimide substrate showing a thermal expansion coefficient of...
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6316084 |
Transparent abrasion-resistant coatings, magnetic coatings, electrically and thermally conductive coatings, and UV absorbing coatings on solid substrates
Abrasion and scratch protective coatings magnetic coatings, electrically and thermally conducting coatings, and UV absorbing coatings are provided by electrostatic self-assembly (ESA) of one layer...
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6313258 |
Aromatic polycarbodiimide and films thereof
An aromatic polycarbodiimide having a specified structural unit is disclosed. The aromatic polycarbodiimide can give films, moldings, adhesives and the like each having excellent characteristics...
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6303230 |
Laminates
This invention relates to laminates in which a layer of polyimide precursors and a layer of photosensitive resins are formed one on top of another on an electric conductor such as a stainless steel...
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6296946 |
Plastic substrate and method of manufacturing the same, and ink jet printer head and method of manufacturing the same
There is provided a plastic base material having a reformed layer 2 formed on a plastic substrate 1 by reforming the surface layer thereof into a component containing fluorine at the ratio of the...
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6294639 |
Liquid crystal aligning agent
The present invention relates to a treating agent for liquid crystal alignment, which comprises a polyamic acid compound having a reduced viscosity of from 0.05 to 5.0 dl/g (in N-methylpyrrolidone...
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6294257 |
Conductive elastomer film, method for production thereof, and conductive elastomer composition
An electrically conductive elastomer film comprising (i) a thermoplastic elastomer and (ii) 5 to 100 parts by weight, based on 100 parts by weight of the thermoplastic elastomer, of an electrically...
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6288209 |
Method to prepare processable polyimides with reactive endogroups using 1,3-bis(3-aminophenoxy)benzene
Polyimide copolymers were obtained containing 1,3-bis(3-aminophenoxy)benzene (APB) and other diamines and dianhydrides and terminating with the appropriate amount of reactive endcapper. The...
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6281324 |
Semiconductive belt
A semiconductive belt comprising a polyimide film having a volume resistivity of 10 9 Ωcm to 10 16 Ωcm and a surface resistivity of 10 10 Ω to 10 17 Ω at 25° C. and 60% RH, wherein the...
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6281323 |
Terminal-modified imide oligomers and cured products thereof
Terminal-modified imide oligomers with an inherent viscosity of 0.05-1 obtained by reacting 2,3,3',4'-biphenyltetracarboxylic dianhydride, an aromatic diamine compound and...
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6277495 |
Polyimide film, a method for its manufacture and a polyimide film containing metal laminated plate
A polyimide film of birefringence less than 0.01 is formed by drawing a copolymerized polyimide comprising a block component and a random component which are molecularly bonded, wherein the block...
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6274695 |
Aligning agent for liquid crystal
The present invention relates to a treating agent for liquid crystal alignment, which is an agent for liquid crystal alignment to be used for a method in which polarized ultraviolet rays or...
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6268033 |
Heat-resisting adhesive composition and adhesive tapes for electronic parts
A heat resisting adhesive composition for electronic parts and adhesive tapes of the present invention comprises a resin mixture of (A) 100 parts by weight of a polyimide comprising 100-30% by mol...
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