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| Number | Title | Issue Date |
| 8138301 | Convenient synthesis of 1→3 - In accordance with the present invention, there is provided a method of preparing higher generation 1→3 C-branched polyamide dendrons. The combination of commercially available acryloyl chloride with 1→3 C-branched amines, e.g., di-tert-butyl 4-[2-(tert-butoxyca... | 03/20/2012 |
| 8106149 | Amino group-containing water-soluble copolymer To provide an amino group-containing water-soluble copolymer having a high chelating performance and clay dispersancy and a method of producing the amino-group containing water-soluble copolymer efficiently and with high productivity. A water-soluble polymer contain... | 01/31/2012 |
| 8084571 | Aromatic polyamide filament and method of manufacturing the same Disclosed are wholly aromatic polyamide filament and a method of manufacturing the same, characterized in that, in a process of preparing wholly aromatic polyamide polymer, a multiple tubular feed pipe for polymeric monomer and polymerization solvent with specific c... | 12/27/2011 |
| 8030436 | Poly(ester-amide) elastomers and their use with implantable medical devices The present invention relates to implantable medical devices comprising poly(ester-amide) elastomers in coating layers on the device. ... | 10/04/2011 |
| 7960497 | Preparation of alkyl ketene dimers The embodiments of the process of the present invention relate to the preparation of alkyl ketene dimers (AKD), where the process combines at least one polyamine with a fatty acid chloride in a molar ratio of less than one mole of polyamine to one mole of fatty acid... | 06/14/2011 |
| 7879970 | Conductive polymer, conductive layer, electronic device, and electronic equipment A conductive polymer having a high carrier transport ability, a conductive layer formed using the conductive polymer, an electronic device provided with the conductive layer having a high reliability, and electronic equipment provided with such an electronic device ... | 02/01/2011 |
| 7557177 | Ring-opened azlactone initiators for atom transfer radical polymerization Initiators for atom transfer radical polymerizations are described. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic (co)polymers. ... | 07/07/2009 |
| 7442745 | Aminomethyl polystyrene resin and preparation process for the same The present invention relates to an aminomethyl polystyrene resin wherein aminomethyl group is grafted only on the surface of polystyrene resin, and a preparation process for the same. More particularly, the present invention is directed to a process for preparing a... | 10/28/2008 |
| 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 |
| 7381788 | Method for continuous production of polyamide Provided is a continuous production method of a polyamide with stabilized polymerization degree and good quality, particularly an aromatic-containing polyamide. A continuous production method of a polyamide, comprising (a) a raw material preparation step of individu... | 06/03/2008 |
| 7364879 | Stable biodegradable, high water absorbable polyglutamic acid hydrogel by 3-dimensional cross-linking and its preparation method The present invention relates to a method for the production of a stable biodegradable, high water absorbable γ-polyglutamic acid (γ-PGA) hydrogel by directly cross-linking (A) a γ-polyglutamic acid (γ-PGA), a γ-polyglutamate,... | 04/29/2008 |
| 7350571 | Methods of preparing and using coated particulates The present invention involves methods of preparing coated particulates and using such coated particulates in subterranean applications such as production enhancement and sand control. One embodiment of the present invention provides a method of preparing coated par... | 04/01/2008 |
| 7348367 | Dispersants Basic and acid dispersants derived from branched alkyl aliphatic acids and alcohols and one or more hydroxy carboxylic acid or lactone to give a polyoxyalkylenecarbonyl chain (POAC) having a terminal carboxylic acid group (TPOAC acid) or terminal hydroxy group (TPOA... | 03/25/2008 |
| 7348046 | Polymer mixture of aliphatic polyamides and partially aromatic polyamides, moulded articles thereof and use thereof The invention relates to a polymer mixture of partially crystalline aliphatic polyamides and partially aromatic polyamides, the proportion of aliphatic polyamides being more than 50% by weight and the quantitative ratio of the aliphatic carbon atoms to amide bonds i... | 03/25/2008 |
| 7334636 | Methods of creating high-porosity propped fractures using reticulated foam One embodiment of the prevent invention provides a method of creating a high porosity propped fracture comprising creating a slurry comprising a treatment fluid, proppant particulates, pieces of reticulated foam having cells, and an adhesive substance such that the ... | 02/26/2008 |
| 7334635 | Methods for fracturing subterranean wells A method of forming a propped fracture comprising: providing a fracture having a far-well bore area and a near-well bore area; placing first proppant particulates at least partially coated with an adhesive substance; placing a portion of second proppant particulates... | 02/26/2008 |
| 7335693 | Antioxidants for polyamides The invention relates to an antioxidant for polyamides containing a sterically hindered phenol of formula (I) as a single primary antioxidant, wherein n is a mixture of whole numbers from 1-5. The invention also relates to compositions containing a polyamide and a c... | 02/26/2008 |
| 7323309 | Bio-barcodes based on oligonucleotide-modified particles The present invention relates to a screening methods, compositions, and kits for detecting for the presence or absence of one or more target analytes, e.g. proteins such as antibodies, in a sample. In particular, the present invention relates to a method that utiliz... | 01/29/2008 |
| 7323241 | Composite materials comprising a reinforcing material and a star polyamide as a thermoplastic matrix, the precursor compound article of said materials and the products obtained using same The invention relates to a precursor article of a composite material comprising a polymer matrix and at least one reinforcing wire and/or fibres, said article comprising at least one reinforcing wire and/or fibres and at least one polymer matrix wire and/or fibres. ... | 01/29/2008 |
| 7318473 | Methods relating to maintaining the structural integrity of deviated well bores Methods of enhancing at least partially the structural integrity of a longitudinal portion of a deviated well bore are provided. The methods include providing a gravel matrix composition; providing a longitudinal portion of a deviated well bore; and placing a suffic... | 01/15/2008 |
| 7318474 | Methods and compositions for controlling formation fines and reducing proppant flow-back Provided herein are methods for controlling the migration of particulates within a portion of a subterranean formation that comprise aqueous tackifying treatment fluids, curable resin compositions, and/or noncurable resin compositions. ... | 01/15/2008 |
| 7309757 | Polymers for the delivery of bioactive agents and methods of their preparation Provided is a poly(amino ester) having a polymer backbone comprising at least one secondary amine linkage and at least one tertiary amine linkage in the polymer backbone. Poly(amino ester)s are prepared via the Michael addition of a bis(acrylate ester)monomer to a d... | 12/18/2007 |
| 7304122 | Elastomeric functional biodegradable copolyester amides and copolyester urethanes The present invention provides elastomeric copolyester amides, elastomeric copolyester urethanes, and methods for making the same. The polymers that are based on α-amino acids and possess suitable physical, chemical and biodegradation properties. The polymers are u... | 12/04/2007 |
| 7303652 | Reduced byproduct high solids polyamine-epihalohydrin compositions A process for rendering a polyamine-epihalohydrin resin storage stable, is described. The process entails treating a polyamine-epihalohydrin resin composition, where the resin is formed in a reaction having a molar ratio of epihalohydrin to secondary amine group of ... | 12/04/2007 |
| 7299875 | Methods for controlling particulate migration Many methods are provided including methods of stabilizing a portion of a subterranean formation or reducing the production of particulates from a portion of a subterranean formation comprising contacting the portion of the subterranean formation with a pre-flush fl... | 11/27/2007 |
| 7297756 | Melt-adhesives for sealing off rocks or building materials Polyamide hot-melt adhesives based on the reaction products of polymeric fatty acids, C14-C18 monocarboxylic acids, C6-C12 dicarboxylic acids and diamines which do not contain any water-extractable, environmentally toxic c... | 11/20/2007 |
| 7291713 | Branched polyalkylene glycols The present invention provides a branched polyalkylene glycol wherein three or more single-chain polyalkylene glycols and a group having reactivity with an amino acid side chain, the N-terminal amino group or the C-terminal carboxyl group in a polypeptide or a group... | 11/06/2007 |
| 7285601 | Inherently crosslinkable polyamides A polyamide which contains a monoolefinically unsaturated compound chemically bonded at the end of the polymer chain, a process for preparing this polyamide, a polyamide obtainable by crosslinking this polyamide, and also fibers, films, and moldings, comprising at l... | 10/23/2007 |
| 7285675 | N-hydroxyalkyltrimellitimide esters and bis-(trimellitimide) esters and method of making The present invention relates to trimellitic anhydride imide ester, a method of making it, and polyesters or polyamides that can be modified with trimellitic anhydride (TMA) to provide better heat resistance and mechanical properties. With the present invention, the... | 10/23/2007 |
| 7281581 | Methods of hydraulic fracturing and of propping fractures in subterranean formations A method of propping at least one fracture in a subterranean formation, that comprises forming a plurality of proppant aggregates, each proppant aggregate comprising a binding fluid and a filler material, and introducing the plurality of proppant aggregates into the... | 10/16/2007 |
| 7276572 | Process for preparing aspartates The present invention relates to novel aspartates, their method of production and the use of these mono and polyaspartates as reactive components for polyisocyanates in two-component polyurethane coating compositions and for preparing polyurethane prepolymers. ... | 10/02/2007 |
| 7273099 | Methods of stimulating a subterranean formation comprising multiple production intervals A method of stimulating a production interval adjacent a well bore having a casing disposed therein, that comprises introducing a carrier fluid comprising first particulates into the well bore, packing the first particulates into a plurality of perforations in the c... | 09/25/2007 |
| 7267171 | Methods and compositions for stabilizing the surface of a subterranean formation Methods comprising providing a fracturing fluid comprising proppant particulates at least partially coated with a hardenable resin composition that comprises a hardenable resin component and a hardening agent component, wherein the hardenable resin component compris... | 09/11/2007 |
| 7264051 | Methods of using partitioned, coated particulates Methods of treating a portion of a subterranean formation comprising: providing partitioned, coated particulates that comprise particulates, an adhesive substance, and a partitioning agent, and wherein the adhesive substance comprises an aqueous tackifying agent or ... | 09/04/2007 |
| 7265164 | Ink composition containing cationic water-soluble polymer An ink composition for ink jet recording is provided which can realize both good waterfastness of prints and high-quality recorded images on specialty recording media. The ink composition comprises a water-soluble colorant, such as an acid dye, a cationic water-solu... | 09/04/2007 |
| 7264052 | Methods and compositions for consolidating proppant in fractures Improved methods and compositions for consolidating proppant in subterranean fractures are provided. In certain embodiments, the hardenable resin compositions may be especially suited for consolidating proppant in subterranean fractures having temperatures above abo... | 09/04/2007 |
| 7261156 | Methods using particulates coated with treatment chemical partitioning agents Methods of treating a portion of a subterranean formation comprising: providing partitioned, coated particulates that comprise particulates, an adhesive substance, and a partitioning agent, and wherein the partitioning agent comprises a subterranean treatment chemic... | 08/28/2007 |
| 7261875 | Dendritic poly (amino acid) carriers and methods of use The present invention concerns a design for dendritic poly(amino acid) polymer carriers, also known as nonlinear polymers, and their applications. These dendritic poly(amino acid) carriers have multiple functional groups at the polymer surface. In addition, they hav... | 08/28/2007 |
| 7258929 | Gas-barrier multi-layer structure The gas-barrier multi-layer structure of the present invention comprises at least one gas-barrier layer A and at lease one thermoplastic resin layer B. The gas-barrier layer A comprises a crystallizable polyamide resin which is produced by the polycondensation of a ... | 08/21/2007 |
| 7259225 | Thermosensitive poly (organophosphazenes), preparation method thereof and injectable thermosensitive polyphosphazene hydrogels using the same Disclosed are polyphosphazenes of Formula 1 showing a sol-gel behavior with a temperature change, a preparation method thereof, and injectable thermosensitive polyphosphazene hydrogels using the same ... | 08/21/2007 |
