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| Number | Title | Issue Date |
| 7354534 | Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same A composition for an overcoat layer suitable for use in an organophotoreceptor for liquid toner, an organophotoreceptor manufactured by employing the composition and an electrophotographic imaging apparatus containing the organophotoreceptor. Since the organophotore... | 04/08/2008 |
| 7326760 | Production of broad molecular weight polyethylene Broad molecular weight polyethylene and polyethylene having a bimodal molecular weight profile can be produced with chromium oxide based catalyst systems employing alkyl silanols. The systems may also contain various organoaluminum compounds. Catalyst activity and m... | 02/05/2008 |
| 7281579 | Method for terminating or reducing water flow in a subterranean formation This invention relates to a method of reducing the deleterious effects of water production in a subterranean formation by placing an aqueous phase polymer and/or resin, which at a designated set up time, solidifies and blocks water conduits. This invention pertains ... | 10/16/2007 |
| 7220708 | Drilling fluid component A method and composition is provided for a relative permeability modifying polymer for use with drilling fluids that comprises a water soluble polymer formed from a hydrophobic or hydrophobically modified hydrophilic monomer and a hydrophilic monomer. In an alternat... | 05/22/2007 |
| 7216707 | Cement compositions with improved fluid loss characteristics and methods of cementing using such cement compositions The present invention provides a method of cementing in a subterranean formation that includes providing a cement composition that includes water, cement, and a fluid loss control additive that includes a water-soluble hydrophobically modified polymer or a hydrophil... | 05/15/2007 |
| 7207387 | Methods and compositions for use with spacer fluids used in subterranean well bores The present invention relates to spacer fluids used in subterranean operations and, more particularly, to spacer fluids that comprise water-soluble relative permeability modifiers and methods of using the spacer fluids in subterranean operations. In one embodiment, ... | 04/24/2007 |
| 7202311 | Phosphine oxide hydroxyarl mixtures with novolac resins for co-curing epoxy resins There is disclosed a novel mixture of polyhydroxy phenolic curing agents, such as novolac resins blended with a mixture of mono, bis and tris hydroxyaryl phosphine oxides for co-curing epoxy resins and imparting flame resistance thereto. A preferred composition incl... | 04/10/2007 |
| 7201957 | Phosphine oxide hydroxyaryl mixtures with novolac resins for co-curing epoxy resins There is disclosed a novel mixture of polyhydroxy phenolic curing agents, such as novolac resins blended with a mixture of mono, bis and tris hydroxyaryl phosphine oxides for co-curing epoxy resins and imparting flame resistance thereto. A preferred composition incl... | 04/10/2007 |
| 7182136 | Methods of reducing water permeability for acidizing a subterranean formation The present invention provides a method of stimulating a subterranean formation penetrated by a well. The formation has a water-bearing section and a hydrocarbon-bearing section. The method includes the steps of: (a) introducing into the formation an aqueous treatme... | 02/27/2007 |
| 7172843 | Composition for overcoat layer of organophotoreceptor, organophotoreceptor manufactured by employing the same and the electrophotographic imaging apparatus containing the same A composition for an overcoat layer suitable for use in an organophotoreceptor for liquid toner, an organophotoreceptor manufactured by employing the composition and an electrophotographic imaging apparatus containing the organophotoreceptor. Since the organophotore... | 02/06/2007 |
| 7159656 | Methods of reducing the permeabilities of horizontal well bore sections Methods of temporarily reducing the permeability of one or more selected sections of a subterranean formation penetrated by a horizontal well bore and the flow of water or water and hydrocarbons or hydrocarbons therefrom are provided. The methods comprise the steps ... | 01/09/2007 |
| 7135537 | Sulfonimide-containing poly(arylene ether)s and poly(arylene ether sulfone)s, methods for producing the same, and uses thereof The present invention is directed to sulfonimide-containing polymers, specifically sulfonimide-containing poly(arylene ether)s and sulfonimide-containing poly(arylene ether sulfone)s, and processes for making the sulfonimide-containing poly(arylene ether)s and sulfo... | 11/14/2006 |
| 7117942 | Methods useful for controlling fluid loss during sand control operations The present invention relates to methods useful during sand control operations and, more particularly, to using water-soluble relative permeability modifiers that are useful for controlling fluid loss during sand control operations. In one embodiment, the present in... | 10/10/2006 |
| 7114568 | Hydrophobically modified polymers for a well completion spacer fluid A method and composition is provided for a relative permeability modifier for use with aqueous well treatment fluids that comprises a hydrophobically modified water soluble polymer or a hydrophilically modified water soluble polymer. ... | 10/03/2006 |
| 7091159 | Compositions for and methods of stabilizing subterranean formations containing clays A composition of matter for use in stablizing shale formations in earth boreholes comprising polymeric products, e.g., polymers of a dialkyl aminoalkyl methacrylate, which can optionally be quaternized with an alkyl halide to produce drilling fluid additives which s... | 08/15/2006 |
| 6969756 | Phosphorus element-containing crosslinking agents and flame retardant phosphorus element-containing epoxy resin compositions prepared therewith Novel phosphorus element-containing vinyl ester resin compositions and process for preparing epoxy vinyl ester resin compositions include non-halogenated, ignition resistant epoxy vinyl ester resin formulations. The ignition resistant epoxy vinyl ester resin formula... | 11/29/2005 |
| 6955851 | Hydroxyaryl phosphine oxides, glycidyl ethers and epoxy compositions, composites and laminates derived therefrom The invention provides new compositions of matter that are capable of forming cross-linked polymeric materials upon reaction with various known epoxy-containing compositions. Thus, the compositions of this invention are useful in the manufacturing of prepregs and la... | 10/18/2005 |
| 6949322 | Composition for forming overcoat layer for organophotoreceptor using polyaminoether and organophotoreceptor employing overcoat layer prepared from the composition A composition forms an overcoat layer of an organophotoreceptor, the composition including polyaminoether and a solvent, and an organophotoreceptor employing the overcoat layer formed from the composition. The polyaminoether is represented by Formula 1: ... | 09/27/2005 |
| 6828414 | Process for producing aromatic polyethers with high molecular weights A process for producing an aromatic polyether having a high molecular weight, small dispersion of the molecular weight, excellent in the heat resistance as well as the impact resistance and represented by the formula (1): | 12/07/2004 |
| 6794481 | Bifunctional phenylene ether oligomer, its derivatives, its use and process for the production thereof A bifunctional phenylene ether oligomer of the formula (1), obtained by oxidation polymerization of abivalent phenol of the formula (2) and a monovalent phenol of the formula (3), HO—YaO—X—OY—ObH (... | 09/21/2004 |
| 6613849 | Epoxy (urethane) (Meth)acrylate from hydroxyaliphatic bisphenol epoxy resin The terminal glydidyl groups of a diglycidyl ether of a hydroxyaliphatic bisphenol is optionally reacted with (meth)acrylic acid to obtain a vinyl ester. The internal hydroxyaliphatic groups are reacted with (meth)acrylic acid or cyanoacrylic acid to prep... | 09/02/2003 |
| 6569983 | Method and composition for recovering hydrocarbon fluids from a subterranean reservoir A water-soluble branched polyhydroxyetheramine, wherein the branched polyhydroxyetheramine is prepared by reacting an amine having two reactive hydrogen atoms with a diepoxide to form a polyhydroxyetheramine and then reacting the polyhydroxyetheramine wit... | 05/27/2003 |
| 6512075 | High Tg brominated epoxy resin for glass fiber laminate A new brominated epoxy resin has been developed, which consists of following components: A. multifunctional phenol-benzaldehyde epoxy resin (formula 1) 10~70 weight %; B. difunctional epoxy resin 0~55 weight %; C. bromine-containing difunctional epoxy resin 0~... | 01/28/2003 |
| 6469109 | Aryl ester compound, its production process, epoxy resin composition using said compound, and copper-clad laminate using the epoxy resin composition An epoxy resin composition is disclosed as containing, as essential components, an epoxy resin, an aryl ester compound obtained from a polyhydric phenol representedd by a formula (4) with a carbonyl compound represented by a general formula (2) and a cure... | 10/22/2002 |
| 6455116 | Poly(hydroxy amino ether) composition, method for preparing the same and articles prepared therefrom A composition comprising a poly(hydroxy aminoether) and an effective amount of a propoxylated or ethoxylated phenol, process for preparing the same and articles prepared from the composition.... | 09/24/2002 |
| 6353079 | Epoxy resin and epoxy di (meth)acrylate from hydroxyaliphatic bisphenol The present invention concerns hydroxyaliphatic functional diglycidyl ethers of bisphenols (epoxy resins); curable (thermosettable) mixtures of at least one hydroxyaliphatic functional epoxy resin and at least one curing agent and/or catalyst therefor, as... | 03/05/2002 |
| 6262189 | Advanced epoxy resin from mixing polyepoxide and OH- or COOH-compound as feedstream The invention provides for a process for the preparation of an advanced epoxy resin by reaction of a compound having on average more than one epoxy group per molecule and a compound having on average one or more hydroxyl group or carboxyl group per molecu... | 07/17/2001 |
| 6169159 | Alcohol-blocked brominated bisphenol a epoxy resin flame retardants for carbonyl-containing thermoplastic resins A halogenated flame retardant for a thermoplastic resin with carbonyl linkages in the main chain such as polyethylene terephthalate or polybutylene terephthalate is obtained by the modification of a brominated bisphenol A epoxy resin optionally advanced w... | 01/02/2001 |
| 6111050 | Flourine-containing curable compositions A fluorine-containing curable composition comprises (A) a linear perfluoro compound having at least two secondary amino groups per molecule and a divalent perfluoroalkylene or divalent perfluoropolyether structure in the main chain, and (B) a crosslinkabl... | 08/29/2000 |
| 6100359 | Ablative polyurea foam and prepolymer The present invention relates to an ablative fire resistant hydrophilic polyurea foam made from low molecular weight polyols capped with an isocyanate, with the polyol mixture including a fire retardant polyol that preferably includes carborane disilanol,... | 08/08/2000 |
| 6043333 | Modified epoxy resin, epoxy resin composition and cured product thereof Modified epoxy resin having an elevated softening point obtained from an epoxy resin having a low softening point without modifying the properties of the cured product and to improve the workability in the production of an epoxy resin composition. The mod... | 03/28/2000 |
| 6022931 | Advanced epoxy resins The invention provides for a process for the preparation of an advanced epoxy resin by reaction of a compound having on average more than one epoxy group per molecule and a compound having on average one or more hydroxyl group or carboxyl group per molecu... | 02/08/2000 |
| 6015872 | Substrate for printed circuit board To address the problem of difficulty of making compatible flame retarding property and electrical and mechanical characteristics in conventional printed interconnection substrates, the present invention employs, in a substrate for printed circuit board of... | 01/18/2000 |
| 5962093 | Thermally stable polyetheramines A laminate structure comprises one or more layers of an organic polymer and one or more layers of a hydroxy-functionalized polyetheramine, wherein the hydroxy-functionalized polyetheramine layer is adhered directly to a contiguous organic polymer layer wi... | 10/05/1999 |
| 5939472 | Epoxy resin composition for molding having improved mechanical properties and crack resistance Epoxy resin composition for molding comprising epoxy resin (A), acid anhydride (B), curing accelerator (C), coupling agent (D) and filler (E), process for preparing molded product used for apparatus for high voltage made of the epoxy resin composition for... | 08/17/1999 |
| 5880179 | Molded products for high voltage apparatus comprising brominated epoxy resins "Molded products for high voltage apparatus comprising an" epoxy resin composition for molding comprising an epoxy resin (A), an acid anhydride (B), a curing accelerator (C), at least one coupling agent (D) and a filler (E). The epoxy resin (A) is a bifun... | 03/09/1999 |
| 5837799 | Fire-retardant compound, a process for producing said fire-retardant compound and a fire-retarded thermoplastic resin composition including said fire-retardant compound A fire-retardant compound including bromine indicated by general formula (1), wherein the end group X and Y are comprised by A or B shown in formula (2), and the said fire-retardant compound is a mixture of the composition including 15 to 30% of X=Y=A, th... | 11/17/1998 |
| 5834620 | Aromatic polyamides and polyesters containing ortho-ether groups Described herein are polyesters and polyamides which contain repeat units derived from novel dicarboxylic acids comprising arylene groups having ortho ethers substituted thereon. Also disclosed are novel compounds from which these polymers can be made. Th... | 11/10/1998 |
| 5824752 | Process for the preparation of advanced resins The invention provides for a process for the preparation of an advanced resin by reaction of a compound having on average more than one epoxy group per molecule and a compound having on average one or more hydroxyl group or carboxyl group per molecule in ... | 10/20/1998 |
| 5750631 | Halogenated epoxy resin, production of said resin, flame retardant, and flame-retarded epoxy resin composition The present invention relates to an epoxy composition represented by the formula (I) below, wherein G is a glycidyl group or a halogen atom. It is produced by reacting a halogenated polyhydric phenol compound with epihalohydrin in the presence of an alkal... | 05/12/1998 |
