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| Number | Title | Issue Date |
| 7408018 | Elastomeric functional biodegradable copolyester amides and copolyester urethanes The invention provides elastomeric copolyester amides, elastomeric copolyester urethanes, and methods for making the same. The polymers are based on α-amino acids and possess physical, chemical and biodegradation properties that render them suitable for use in the ... | 08/05/2008 |
| 7138483 | Monomers, conjugated polymers and electronic devices using such polymers The energy levels (HOMO, LUMO) of the conjugated polymer are tuned independently, so that an energy match on both sides of the device can be accomplished while keeping the emission color in the blue region. Such polymers can be formed by polymerization of a mixture ... | 11/21/2006 |
| 7064176 | Coating material for electronic components The invention relates to novel polyhydroxyamide compounds that, in the form of their oxazoles, ane suited as a coating material, particularly for electronic components. The invention also relates to a method for producing these novel compounds and to the use thereof... | 06/20/2006 |
| 7060783 | Diamine compound polymer having condensed aromatic group The present invention provides a diamine compound polymer and a method for producing the diamine compound polymer. The diamine compound polymer of the present invention has a condensed aromatic group represented by the following formulae (1-1) and (1-2). | 06/13/2006 |
| 7060332 | Liquid crystal display with alignment film of polyphenylenphthalamide-based material and method for fabricating the same An LCD and a method for fabricating the LCD includes a first substrate and a second substrate, a liquid crystal layer between the first substrate and the second substrate, and a coating of a polyphenylenephthalamide based material on at least one of the substrates, ... | 06/13/2006 |
| 7056988 | Polymer compound, process for producing the same, molded article and process for producing the same A polymer compound contains a cyclic structure represented by the following general formula (1): wherein each of X and Y represent an alkylene group or the like, where X and Y may be the same or different, Z repr... | 06/06/2006 |
| 7045241 | Proton conductive solid polymer electrolyte and method for producing the same A monomer to produce polybenzimidazole is dissolved in polyphosphoric acid. For example, polysulfated phenylene sulfonic acid (acidic group-possessing polymer) is further dissolved in this solution. In this procedure, the acidic group-possessing polymer and the mono... | 05/16/2006 |
| 6998464 | Method for producing a solution consisting of a polymer containing recurrent azole units, solutions produced according to said method and use of the same The present invention relates to a method of preparing a solution of a polymer comprising recurring azole units, which comprises dissolving a sufficiently dried polymer comprising recurring azole units of the formula wh... | 02/14/2006 |
| 6987163 | Modified polybenzimidazole (PBI) membranes for enhanced polymer electrochemical cells The invention relates to a modified polybenzimidazole (PBI), membranes that are fabricated from these polymers, and their use in electrochemical applications. These membranes have high ionic conductivity and are suitable for solid polymer electrolytes in electrochem... | 01/17/2006 |
| 6979719 | Coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group The invention pertains to a coating composition comprising a compound comprising at least one bicyclo-orthoester group and at least one other functional group. The invention also comprises a process for curing the present coating composition. Further, a process for ... | 12/27/2005 |
| 6946524 | Methods for producing polyester amides based on polyisobutylenes, polyester amides produced thereby, and uses therefor in stabilizing crude oil Processes for producing polyester amides, by reacting a polyisobutylene with a first reagent selected from the group consisting of at least monounsaturated acids having from 3 to 21 carbon atoms and derivatives thereof; and a second reagent selected from the group c... | 09/20/2005 |
| 6916919 | Isolation of DNA molecules The present invention relates to a process for separating nucleic acid molecules, preferably open circular and supercoiled plasmid DNA and RNA molecules from each other, comprising the steps of providing a solution comprising the molecules; adsorbing the molecules t... | 07/12/2005 |
| 6828412 | Degradable polymers A polymer comprising: a polymeric backbone comprising at least one unit having the structure (I), wherein R-R4 comprise groups selected from the group consisting of H, C1-C12 alkyl, C6-C18 aryl, C7-C | 12/07/2004 |
| 6824949 | Polybenzoxazole precursors, photoresist solution, polybenzoxazole, and process for preparing a polybenzoxazole precursor There are disclosed polybenzoxazole precursors which can be processed by centrifugal techniques, which can be cyclized to polybenzoxazoles on substrates without difficulty, and which after cyclization to polybenzoxazoles exhibit a high temperature stability. In part... | 11/30/2004 |
| 6677427 | Enzyme-catalyzed polyamides and compositions and processes of preparing and using the same A polyamide, the enzymatic reaction product of at least one polyamine and diester, and processes for preparing and using the same. In addition, processes for preparing and using the enzymatic reaction product as creping adhesives and wet strength resins t... | 01/13/2004 |
| 6670442 | Hot melt adhesives based on polyamides Hot melt adhesives are prepared using thermoplastic polyamides derived from polymerized fatty acid components. The adhesives are particularly useful for bonding nonpolar substrates such as poly--olefins.... | 12/30/2003 |
| 6605658 | Stabilizing mixtures for organic polymers comprising a pyrazolone, an organic phosphite or phosphonite and a hindered phenol Stabilizing mixtures for organic polymers comprising: a) at least one compound belonging to the group of pyrazolones; b) at least one compound belonging to the group of organic phosphites or phosphonites; c) at least one compound belonging to the group of stericall... | 08/12/2003 |
| 6576687 | Wet-strength agent with low DCP content The invention relates to a novel process for the preparation of polycondensate solutions based on polyamidoamine/epichlorohydrin resins that gives products having a very low content of organic chlorine compounds, in particular a 1,3-dichlorophenol-2-propa... | 06/10/2003 |
| 6503629 | Cationic coating composition The present invention provides a cationic coating composition capable of forming a coating film which is excellent in a corrosion resistance and an adhesive property and an electrodepositably coating property toward a rust preventive steel plate (zinc-pla... | 01/07/2003 |
| 6500912 | Epoxy resin system A curable epoxy composition comprises an epoxy resin having at least 1.5 epoxy groups per molecule and an amine-terminated polyamide. The liquid amine-terminated polyamide is prepared by reacting a long-chain, C20 -C60 dicarboxylic a... | 12/31/2002 |
| 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 imidating. The polyimide layer has a linear expansion coef... | 05/28/2002 |
| 6350305 | Selected polymeric furanone magenta colorants A polymeric furanone magenta colorant is disclosed that contains a furanone magenta chromophore having a furanone adduct, the adduct containing at least one alkoxylated phenyl radical, the chromophore further being derived from at least one aromatic aldeh... | 02/26/2002 |
| 6348562 | Synthetic polyamides A process of increasing the melt processing of synthetic polyamides, in particular pigmented and/or filled synthetic polyamide, by adding thereto an additive having the formula (I) ##STR1## wherein R1 represents a methyl group as such or in the... | 02/19/2002 |
| 6340719 | Crosslinking process A process for crosslinking a melt-processed polymer composition comprises the steps of (a) forming a polymerizable mixture comprising (i) at least one monoethylenically-unsaturated monomer or prepolymer and (ii) at least one monoethylenically-unsaturated,... | 01/22/2002 |
| 6294645 | Dry-strength system The invention relates to resin systems useful for imparting dry-strength to paper without substantially increasing the paper's wet-strength wherein the resin system comprises a cationic component and an anionic component. The invention also relates to the... | 09/25/2001 |
| 6288208 | Highly branched oligomers, process for their preparation and applications thereof The present invention relates to a highly branched polyamide oligomer of the general formula (I) as hereinabove defined, to the process for preparing and branched oligomers and to different uses thereof. As well known to the man skilled in the art, the im... | 09/11/2001 |
| 6218452 | Dyeability or mass coloration of synthetic polyamide 1. Synthetic polyamide comprising one or more of the following compounds: a) a compound having at least one sterically hindered amino group, [hereinafter referred to as compounds a)]; or b) a trimesinic acid trialkylamide, at least one alkyl group of which bears ... | 04/17/2001 |
| 6150460 | Curable compositions containing novel polyfunctional crosslinking agents Novel polyfunctional glyoxylated compounds and compositions containing the same are disclosed which are particularly suitable for use as crosslinking components in curable compositions and also find use in imparting wet adhesion properties to water-based ... | 11/21/2000 |
| 6136944 | Adhesive of epoxy resin, amine-terminated polyamide and polyamine The present invention relates to a flexible industrial adhesive composition which effectively bonds thermoplastic polymer substrates and substrates having low stiffness such as fabric, rubbers and asphaltic materials, to materials selected from metals, fa... | 10/24/2000 |
| 6075082 | Cross-linked polymide binders for ceramics manufacture A method for binding ceramic materials in aqueous media is disclosed. The method utilizes water-soluble cross-linked polyamides prepared by condensation polymerization for binding various classes of ceramic materials.... | 06/13/2000 |
| 6072023 | Polyamides from dimer and trimer acid esters and methods for their preparation Polyamides and process for their preparation comprising either A) epoxidizing an unsaturated or partially hydrogenated fatty acid glyceride; B) transesterifying the epoxidized glyceride with a C1-4 alkanol to obtain epoxidized fatty acid C1-4 | 06/06/2000 |
| 6034207 | Polymers of hexafluoropropene oxide and process of making A hexafluoropropene oxide polymer of formula (1) having a dispersity Mw/mn of up to 1.10 is useful as a raw material for liquid rubber. In formula (1), R is --COF, --I, --Br, --CH2 OH, --CH2 OCH2 CH.dbd.CH2, --C... | 03/07/2000 |
| 6034204 | Condensation products of basic amino acids with copolymerizable compounds and a process for their production Condensation products of basic amino acids with copolymerizable compounds which are obtainable by condensing (a) a basic amino acid selected from the group consisting of lysine, arginine, ornithine, tryptophane and mixtures thereof, (b) a copolymerizable compo... | 03/07/2000 |
| 6028141 | Polyfunctional crosslinking agents and curable compositions containing the same Novel polyfunctonal glyoxylated compounds and compositions containing the same are disclosed which are particularly suitable for use as crosslinking components in curable compositions and also find use in imparting wet adhesion properties to water-based p... | 02/22/2000 |
| 6020499 | Cyclic carbonates and their reactions with amines Six-membered cyclic carbonates (2-oxo-1,3-dioxanes) in which keto or carbohydrocarbyloxy groups are bound to the 5 position of the ring are disclosed. They react surprising quickly with primary or secondary cyclic amines, and the novel product hydroxyuret... | 02/01/2000 |
| 5962629 | Amine-terminated polyamide in oil-in-water emulsion An epoxy resin composition containing a) an epoxy resin, b) a liquid amine terminated polyamine curing agent prepared by condensing an aminoalkylpiperazine and a dicarboxylic acid, and (c) water. An aqueous dispersion of the amine terminated polyamine cur... | 10/05/1999 |
| 5959070 | Rigid rod and ladder polymers; a process for making said polymers; a process of producing light using said polymers; and light emitting devices employing said polymers A class of rigid rod and latter polymers having light emitting capability is provided. Included in this class of polymers are those having novel repeating structural units. These rigid rod and ladder polymers are employed in light emitting diodes.... | 09/28/1999 |
| 5936046 | Epoxy resin with monoglycidyl-capped aryl amidopolyamine There is provided a curing agent composition for epoxy resins and two component curable epoxy resin compositions. The curing agent is made by reacting at least a b) substituted aryl amidopolyamine with a c) monoglycidyl capping agent, where the substitute... | 08/10/1999 |
| 5932688 | Polybenzimidazole material with low metallic concentration and a process for production thereof An improved polybenzimidazole wherein the total concentration of metals other than alkali metal and alkaline earth metals is 10 ppm or less. The resulting polybenzimidazole is industrially useable in parts or components of apparatus for the manufacture of... | 08/03/1999 |
| 5922801 | Polyamide binders for ceramics manufacture A method for binding ceramic materials in aqueous media is disclosed. The method utilizes water-soluble polyamides prepared by condensation polymerization for binding various classes of ceramic materials.... | 07/13/1999 |
