|
Match
|
Document |
Document Title |
|
|
6849706 |
Copolyetherimides
Copolyetherimides comprise phthalimide structural units comprising both 3- and 4-linkages, wherein the designations 3-linkage and 4-linkage refer to the isomeric positions on the phthalimide ring...
|
|
|
6846900 |
POLYVALENT CARBOXYLIC ACID ESTER, PROCESS FOR PRODUCING THE CARBOXYLIC ACID ESTER, PLASTIC LENS COMPOSITION USING THE CARBOXYLIC ESTER, PLASTIC LENS OBTAINED BY CURING THE COMPOSITION AND PROCESS FOR PRODUCING THE PLASTIC LENS
A compound favored with low viscosity, capable of providing a cured product having high refractive index, and suitable for application to optical materials, including plastic lens material, radical...
|
|
|
6835804 |
Preparation of polymer, and resist composition using the polymer
A polymer comprising recurring units of formula (2) is prepared by effecting deblocking reaction on a polymer comprising recurring units of formula (1) in the presence of an acid catalyst. In...
|
|
|
6828408 |
Aromatic polyimide ester and method for producing thereof
An aromatic polyimide ester having a small coefficient of linear expansion, small water absorbing property, and excellent heat resistance. The aromatic polyimide ester comprising: a repeating unit...
|
|
|
6824642 |
Phenyl-linked oxazole cyanates as dielectrics having good adhesive and filling properties
The following invention relates to phenyl-linked polybenzoxazoles having terminal, aryl- or heteroaryl-attached cyanate groups which can be used for adhesive bonding and as dielectrics, especially...
|
|
|
6812320 |
Method for copolyestercarbonate synthesis
Thermally stable block copolyestercarbonates comprising chain members derived from at least one dihydroxy-substituted aromatic hydrocarbon moiety and at least one aromatic dicarboxylic acid moiety,...
|
|
|
6811815 |
Method for roll-to-roll deposition of optically transparent and high conductivity metallic thin films
Methods for roll-to-roll deposition of optically transparent and high conductivity metallic thin films are disclosed. In general, a method according to the present invention comprises: (1)...
|
|
|
6806344 |
POLY-O-HYDROXAMIDE, POLYBENZOXAZOLE, AND ELECTRONIC COMPONENT INCLUDING A DIELECTRIC HAVING A BARRIER EFFECT AGAINST COPPER DIFFUSION, AND PROCESSES FOR PREPARING POLY-O-HYDROXYAMIDES, POLYBENZOXAZOLES, AND ELECTRONIC COMPONENTS
Novel poly-o-hydroxyamides can be cyclized to give polybenzoxazoles which have a good diffusion barrier effect with respect to metals. The poly-o-hydroxyamides can be applied to a semiconductor...
|
|
|
6790930 |
Process for producing polyimide resin
The present invention provides a method for easily producing a high-molecular weight polyimide resin at high yield by drying and heating a mixture mixed by material monomers of polyimide.
|
|
|
6780959 |
Compositions comprising functionalized polyphenylene ether resins
The invention relates to a polyphenylene ether resin containing residual aliphatic unsaturation as well as composites, blends, and articles made from the polyphenylene ether resin containing...
|
|
|
6780960 |
Method of making a polyimide in a low-boiling solvent
A method of making a solution of a polyimide from a diamine monomer and a dianhydride monomer is disclosed. A solution or slurry of one of the monomers in a solvent that boils at a temperature...
|
|
|
6774203 |
Method for producing liquid crystalline polyester
The present invention provides a method for producing a liquid crystalline polyester which is produced from an aromatic carboxylic acid, an aromatic hydroxycarboxylic acid, an aromatic diol and/or...
|
|
|
6770733 |
Polyimide copolymer
A film-formable polyimide copolymer, which comprises two kinds of tetracarboxylic acid dianhydride consisting of (A) pyromellitic acid dianhydride and (B) 3,3′,4,4′-benzophenonetetracarboxylic...
|
|
|
6750315 |
Polyether aromatic ketone resin composition and its film and sheet
The present invention is envisioned to improve sliding characteristics of polyether aromatic ketone resins and to provide their molded articles which are themselves resistant to damage and...
|
|
|
6740359 |
Ambient cure fast dry solvent borne coating compositions
The present invention is directed to fast dry ambient temperature curable coating compositions especially suited for use in automotive refinish applications. A binder component of the two pack...
|
|
|
6737503 |
Aromatic diamine and polyimide thereof
The aromatic diamine compound of the present invention is represented by the following formula (1), and from the aromatic diamine compound a polyimide having a repeating unit represented by the...
|
|
|
6734276 |
Polyimide and circuit substrate comprising the same
The invention is a polyimide, random copolymer having repeating units of the formula (1): wherein R 1 and R 2 each represent a divalent group selected from and R 1 and R 2 may be the same...
|
|
|
6720402 |
Shape memory polymers
Shape memory polymer compositions, articles of manufacture thereof, and methods of preparation and use thereof are described. The shape memory polymer compositions can hold more than one shape in...
|
|
|
6716367 |
Process for producing liquid crystalline polymer
A process for producing a liquid crystalline polymer with increased polymerization rate and reduced deposition of monomer-derived substances to the reaction vessel during production is provided. A...
|
|
|
6710160 |
Polyamic acid, polyimide, process for producing these, and film of the polyimide
Disclosed are a polyamic acid having repeating units represented by the formula (1): wherein the norbornane skeleton of comprises four components of and their contents satisfy the following:...
|
|
|
6699958 |
Colorless phenol-formaldehyde resins that cure colorless
The present invention is directed to compositions and a process leading to colorless or light colored aqueous phicinol-formaldelhyde resoles. Unlike previous technologies, these compositions lead...
|
|
|
6693162 |
Polyimide resin and resin composition, adhesive solution, film-state joining component,and adhesive laminate film improved in moisture resistance using it, and production methods therefor
The present invention provides a polyimide resin, a resin composition, an adhesive solution, a film-state joining component, and an adhesive laminate film soluble in a solvent having excellent heat...
|
|
|
6680363 |
Process for producing polyimide
An acid dianhydride, together with a diamine, is heated in an organic polar solvent in the presence of γ-caprolactone or β-butyrolactone as an acid catalyst to prepare a polyimide having an...
|
|
|
6664366 |
Thermally stable polymers, method of preparation, and articles made therefrom
Thermally stable polymers comprising chain members derived from at least one 1,3-dihydroxybenzene moiety and at least one aromatic dicarboxylic acid moiety, said polymer being substantially free of...
|
|
|
6657016 |
Polyester resin composition
A polyester resin composition comprising 50 equivalents/ton or more of an aromatic ring in the resin and at least one thermosetting resin selected from the group consisting of melamine resin, urea...
|
|
|
6653433 |
Polyimide composition having improved peel strength when clad
A polyimide film that exhibits improved peel strength when clad with a metal layer is prepared by reacting a polyamic acid polymer and an esterified polyamic acid oligomer. The esterified oligomer...
|
|
|
6649730 |
Aromatic polyester amide
The object of the present invention is to provide an aromatic polyester amide which has improved mechanical strength and high elastic modulus after being molded into a thin wall article as well as...
|
|
|
6642348 |
Melt processable PMR-type polyimides
The present invention provides PMR-type polyimides that exhibit lower melt viscosities than PMR-type polyimides of the prior art. These PMR-type polyimides are created by incorporating flexible...
|
|
|
6642349 |
Batch type apparatus for production of liquid crystalline polymer, and method for continuous production of liquid crystalline polymer using the apparatus
A batch type apparatus for producing a liquid crystalline polymer includes a reactor, a first gas-pressurizing unit, a die-head, a shut-off valve, and a die-plate. The reactor produces a liquid...
|
|
|
6617415 |
Biodegradable corrosion inhibitor packages
Biodegradable resin products consisting essentially of a polymeric resin of starch, polyesters such as polylactic acid, or other suitable polyesters. In admixture with the resin is a particulate...
|
|
|
6610813 |
Highly-halogenated low optical loss polymer
A polyester having less than 50 hydrogen-carbon bonds per 1000 molecular weight units exhibits very low optical loss in the range of wavelengths commonly used for optical communication, and...
|
|
|
6607814 |
Weatherable multilayer articles and method for their preparation
Substantially solvent-free multilayer articles characterized by excellent color retention and gloss retention, solvent resistance and recyclability comprise a substrate layer comprising a first...
|
|
|
6600006 |
Positive-type photosensitive polyimide precursor and composition comprising the same
A polyamic ester prepared by partially substituting hydrogen atoms of carboxylic groups of a polyamic acid with acid labile groups, the polyamic ester comprising one or more repeating units...
|
|
|
6599625 |
Polyether ester elastomer comprising polytrimethylene ether ester soft segment and trimethylene ester hard segment
A polyether ester elastomer comprising about 90-about 60 weight % polytrimethylene ether ester soft segment and about 10-about 40 weight % trimethylene ester hard segment, and use thereof in fibers...
|
|
|
6596838 |
Separation method and device with semi-permeable membranes comprising sulphonated polyimides
The invention relates to a semi-permeable membrane separation process and device in which the said membranes comprise sulphonated polyimides. The present invention also relates to the use of...
|
|
|
6586561 |
Rigid rod ion conducting copolymers
Sulfonated polyimide polymers incorporating bulky monomers are disclosed. The polymers have a liquid crystalline structure and exhibit high conductivity, high water uptake and water stability over...
|
|
|
6586555 |
Processes of preparing condensed polymers with polycarboxylic acids and polyamines
This invention provides processes of the preparation of polyamides, polyimides, and polyamideimides, which are easy to purify after reactions, from polycarboxylic acids and polyamines in high yield...
|
|
|
6576332 |
Thermoplastic resin structure
The present invention provides a thermoplastic resin structure which has a three-layer structure of flexible skin layer/flexible foamed material layer/hard substrate layer wherein each of the...
|
|
|
6538065 |
Method for preparing copolyestercarbonates and articles therefrom
Block copolyestercarbonates substantially free of anhydride linkages linking at least two mers of the polymer chain may be prepared by a method which comprises the steps of: (A) preparing a...
|
|
|
6538100 |
Method for producing polyimide resin
The object of the present invention is to provide a method capable of producing polyimide resins having excellent heat resistance, which can utilize inexpensive monomers and does not use solvents....
|
|
|
6538098 |
Manufacture of polyketones
Polyketones are manufactured by reacting an aromatic carboxylic acid with a biractive aromatic compound, using as a catalyst a combination of a carboxylic acid anhydride and phosphoric acid, or...
|
|
|
6538097 |
Process for production of polyimide powder, polyimide powder, polyimide powder molded bodies and process for their production
A process for production of polyimide powder, which comprises reacting a biphenyltetracarboxylic dianhydride and an aromatic diamine in an amide-based solvent optionally containing a water-soluble...
|
|
|
6531568 |
Polyimide containing crosslinkable group and process for producing the same
This invention provides crosslinkable-group-containing polyimides of various known thermoplastic polyimide backbone structures, which are provided with far better heat resistance, chemical...
|
|
|
6528611 |
Method for forming a finely divided polymerizate
The method for forming a finely divided polymerizate in the form of a dispersion (D) of particles ( 50, 51 ) for the purpose of manufacturing powder lacquers or fiber compound materials comprises...
|
|
|
6518392 |
Dielectric compositions, preparation thereof, and integrated circuit devices fabricated therewith
A novel dielectric composition is provided that is useful in the manufacture of integrated circuit devices and integrated circuit packaging devices. The dielectric composition is prepared by...
|
|
|
6518390 |
Precursor of a heat resistant resin, heat resistant resin, insulating film and semiconductor device
A precursor of a polybenzoxazole resin which comprises a crosslinking group in a molecule and has a specific structure, a polybenzoxazole resin obtained from the precursor by the condensation...
|
|
|
6514611 |
Anisotropic melt-forming polymers having a high degree of stretchability
Highly stretchable, anisotropic melt-forming polymers consisting essentially of recurring units derived from p-hydroxybenzoic acid, 6-hydroxy-2-naphthoic acid, isophthalic acid, terephthalic acid...
|
|
|
6504003 |
Synthesis of higher polyol fatty acid polyesters by transesterification
A process for synthesizing polyol fatty acid polyesters comprising the steps of (1) mixing ingredients comprising (a) unesterified first polyol having hydroxyl groups, (b) second polyol esterified...
|
|
|
6500913 |
Polyimides, process for the preparation thereof and use thereof as alignment films for liquid crystal devices
The present invention relates to a novel polyimide of the general formula (1) and a process for the preparation thereof.
|
|
|
6500904 |
High molecular weight poly(imide)s and methods of synthesis thereof
A method for the synthesis of high molecular weight poly(imide)s comprising coupling poly(imide) precursors having complementary functional groups and a weight average molecular weight of less than...
|