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| Number | Title | Issue Date |
| 8143354 | Process for preparing acid-terminated ATRP products The present invention relates to the in situ acid end group functionalization of polymer chains which have been prepared by means of atom transfer radical polymerization, and to the simultaneous removal of transition metals from polymer solutions. ... | 03/27/2012 |
| 7951875 | Low molecular weight hydrogenated nitrile rubber The present invention relates to hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. ... | 05/31/2011 |
| 7919563 | Low molecular weight hydrogenated nitrile rubber The present invention relates to the process for preparing hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. ... | 04/05/2011 |
| 7897695 | Hydrogenation of diene-based polymers The present invention relates to a process for the selective hydrogenation of the carbon-carbon double bonds in diene-based polymers in bulk form by treatment of the polymer with hydrogen in the presence of a platinum group metal containing catalyst and in the absen... | 03/01/2011 |
| 7772328 | Low molecular weight hydrogenated nitrile rubber The present invention relates to hydrogenated nitrite rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art. The present invention is also related to shaped articles containing hydrogenated nitrile rub... | 08/10/2010 |
| 7585920 | Process for the preparation of low molecular weight hydrogenated nitrile rubber The present invention relates to a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the characterized that the process is carried out in the p... | 09/08/2009 |
| 7579410 | Process for the preparation of low molecular weight nitrile rubber Nitrile rubber polymers, optionally hydrogenated, having lower molecular weight and narrower molecular weight distribution than those known in the art, are prepared by metathesis of nitrile butadiene rubber, optionally followed by hydrogenation. The process comprise... | 08/25/2009 |
| 7393903 | Devices and methods for the rapid, reliable detection and determination of acrylamide concentration in food substances and prevention of acrylamide formation in the same The present invention includes a device and associated analytical method to use for the sensitive detection and accurate, rapid determination of acrylamide in food substances. The present invention also relates to the use of a kit device and associated analytical me... | 07/01/2008 |
| 7381781 | Process for the preparation of low molecular weight hydrogenated nitrile rubber The present invention relates to a process for the production of hydrogenated nitrile rubber polymers having lower molecular weights and narrower molecular weight distributions than those known in the art in the absence of a co-(olefin). ... | 06/03/2008 |
| 7354977 | Process for hydroxyalkylating carboxylic acid-functionalized materials The present invention relates to a process for hydroxyalkylating terminal carboxylic acid groups. More specifically, this invention provides a process for preparing hydroxyl-functionalized materials, such as butadiene nitrile polymers, from carboxylic acid-functiona... | 04/08/2008 |
| 7316919 | Composite materials comprising supported porous gels This invention relates to a composite material that comprises a support member that has a plurality of pores extending through the support member and, located in the pores of the support member, and filling the pores of the support member, a macroporous cross-linked... | 01/08/2008 |
| 7291679 | Recyclable polymer and process for production thereof A novel resin is provided which is renewable with less energy. A process for renewing the resin is also provided. The present invention includes a polymer having the repeating unit represented by Structural Formula (1) below, and a process for producing the polymer:... | 11/06/2007 |
| 7262244 | Polymer composites comprising low molecular weight nitrile rubber The present invention relates to polymer composites comprising at least one, optionally hydrogenated, nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 30 at least one filler and optionally at least one cross-linking agent, a process for pre... | 08/28/2007 |
| 7238762 | Weakly acidic cation exchangers The present invention relates to a process for producing weakly acidic cation exchangers of the polymethacrylic acid type by alkaline saponification of a crosslinked copolymer of alkyl methacrylate and methacrylic acid. ... | 07/03/2007 |
| 7235601 | Hydrogenated nitrile rubber compositions with improved processability The present invention relates to polymer composites containing at least one, optionally hydrogenated, nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) in the range of from 50–30 at least one filler and optionally at least one cross-linking agen... | 06/26/2007 |
| 7211625 | Thermoplastic resin composition and elastomer composition Provided are a thermoplastic resin composition which is excellent in oil resistance, heat resistance, weatherability, impact resistance, transparency, and moldability, and which can be produced economically, an elastomer composition with low hardness and high tensil... | 05/01/2007 |
| 7189279 | Cross-linked polymeric nanoparticles and metal nanoparticles derived therefrom There are provided internally cross-linked, stable polymeric materials, in the form of substantially spherical particles, each particle consisting essentially of a single macromolecule. They have the unusual property of being soluble or dispersible in a liquid mediu... | 03/13/2007 |
| 7176260 | Soft nitrile medical gloves having improved glove relaxation properties The invention is the manipulation of the zinc oxide content and sulfur content of nitrile butadiene rubbers and selected vulcanization conditions that can be achieved economically with common production facilities. The manipulation of these components affects the re... | 02/13/2007 |
| 7166645 | Process for the alkaline saponification of crosslinked acrylonitrile bead polymers The alkaline saponification of acrylonitrile bead polymers provides weakly acidic cation exchangers with little intrinsic color and with reduced residual nitrogen content if the saponification is begun at a temperature T1 of from 70 to 120° C. and, once a de... | 01/23/2007 |
| 7119151 | Antimicrobial agent and production process thereof An antimicrobial agent utilizes a resin having acrylonitrile and styrene and/or a conjugated diene as units. The antimicrobial agent includes a metal-salt-containing copolymer, and the metal-salt-containing copolymer is obtained by treating a copolymer containing ac... | 10/10/2006 |
| 7105606 | Polymer blends comprising low molecular weight nitrile rubber The present invention relates to a polymer blend containing at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) below 10 and at least one nitrile rubber polymer having a Mooney viscosity (ML 1+4 @ 100° C.) above 30 wherein said polymer... | 09/12/2006 |
| 7071263 | Epoxy adhesives and bonded substrates Epoxy adhesives are reported that comprise: (i) about 20% to about 40% weight of a reactive oligomer having a glass transition temperature of about −40° C. or less after curing and having at least two functional groups selected from epoxide, isocyanate, and amine... | 07/04/2006 |
| 7060751 | Graft polymers based on ethylene/α-olefin rubbers and process for their production A thermoplastic molding composition comprising a graft polymer is disclosed. The graft polymer contains: a) a continuous phase containing the polymerized product of at least one vinylaromatic monomer and at least one ethylenically ... | 06/13/2006 |
| 7037982 | Rubber mixtures for roll coverings This invention relates to a rubber mixture containing a carboxylated nitrile rubber, a metal salt of an acrylate, a liquid acrylate, a silane, optionally together with further additives, to a process for the production thereof and to use for moldings of all kinds, i... | 05/02/2006 |
| 7037981 | High molecular weight flocculant A high-molecular flocculant rendered water-soluble by conversion of cyano groups contained in a high-molecular material, a method for producing the flocculant, and a method for efficiently processing water using the flocculant. A high-molecular material containing a... | 05/02/2006 |
| 7009007 | Recyclable polymer, process for production thereof, and recycling treatment thereof A novel resin is provided, which is renewable with less energy. A process for renewing the resin is also provided. The present invention includes a polymer having the repeating unit represented by Structural Formula (1) [—P1—R—]n (... | 03/07/2006 |
| 6955844 | Construction materials containing surface modified fibers Construction materials containing surface modified reinforcements are used to fabricate composite structures. The composite structures comprise a matrix material and surface modified reinforcements, such as fibers and particulates. The surface modifier may be applie... | 10/18/2005 |
| 6951905 | Bisoxazolone based polymers A method of preparing an elastomeric polymer comprising the step of reacting a bisoxazolone with a primary or secondary di-amine terminated oligomer. Also disclosed is a polymer having the formula comprising the repeat unit (I), where R1, R2, R... | 10/04/2005 |
| 6946526 | Nitrile polymer vulcanizate and process for the production thereof The present invention is directed to a nitrile polymer vulcanizate having improved hot air aging characteristics. The nitrile polymer vulcanizate may be produced by admixing a composition containing: (i) a nitrile polymer; (ii) a filler; (iii) a metal salt of a seco... | 09/20/2005 |
| 6943219 | Polymer and epoxy resin compositions The present invention provides a vinyl polymer with an epoxy group terminally introduced therein and an epoxy resin composition comprising (A) an epoxy resin and (B) a vinyl polymer which has a main chain produced by living radical polymerization and has a reactive ... | 09/13/2005 |
| 6930154 | Method for producing a high-molecular weight flocculant A high-molecular flocculant rendered water-soluble by conversion of cyano groups contained in a high-molecular material, a method for producing the flocculant, and a method for efficiently processing water using the flocculant. A high-molecular material containing a... | 08/16/2005 |
| 6920901 | Heat resistant fuel hose The present invention provides a heat resistant fuel hose comprising a rubber inner pipe with an inner layer and an outer layer in the inner pipe. The inner layer of the inner pipe comprises a hydrogenated acrylonitrile butadiene rubber (H-NBR) that is mixed with zi... | 07/26/2005 |
| 6912955 | Metal-backed printing blanket A metal backed printing blanket for mounting on a blanket cylinder that includes a gap, the printing blanket having a thin metal base plate with top and bottom surfaces and ends which include leading and trailing edges adapted for engaging the gap in the cylinder; a... | 07/05/2005 |
| 6890996 | Branched polyvinyl imidazoline acid salt, polymeric flocculant comprising same, and process for preparing same The present invention provides a branched polyvinyl imidazoline acid salt which, when used in waste water treatment, especially sewage treatment, forms flocs and decreases the water content of a dehydrated cake, a polymeric flocculent comprising the branched polyvin... | 05/10/2005 |
| 6867263 | Method of vulcanized bonding of heat-resistant rubber The present invention provides a method of vulcanized bonding of heat resistant rubber. Vulcanized bonding of a hydrogenated acrylonitrile butadiene rubber (H-NBR) and an acrylic rubber (ACM) comprises a step for mixing zinc oxide (ZnO) and magnesium oxide (MgO) as ... | 03/15/2005 |
| 6855752 | Polymers for cement dispersing admixtures Polymers for cement dispersing admixtures, which show different performing properties in concrete are described. All polymers are based on a composition of reactants, namely a) a poly(acrylic acid), b) a polyalkyleneglycol-monoalkylether and, optionally c) a ... | 02/15/2005 |
| 6835780 | Nitrile rubber composition and vulcanized rubber article A rubber composition comprising a nitrile rubber and incorporated therein an organic sulfonic acid salt. A vulcanized rubber article obtained by vulcanization of the rubber composition exhibits a reduced deterioration in tensile strength and elongation when kept in ... | 12/28/2004 |
| 6828385 | Process for crosslinking carboxylated nitrile rubber, hydrogenating carboxylated nitrile rubber, the crosslinked rubber and its' uses A process has now been discovered that permits the simultaneous crosslinking and derivation of an, optionally hydrogenated, polymer whose backbone is composed of a conjugated diene, an unsaturated nitrile and an unsaturated carboxylic acid in the presence of a coupl... | 12/07/2004 |
| 6812294 | Solventless liquid nitrile compounds In one embodiment, this invention relates to a solventless liquid nitrile compound. The compound includes a liquid nitrile rubber. The compound also includes a curing agent selected from sulfur and/or sulfur donors. The curing agent is present in an amount of at lea... | 11/02/2004 |
| 6809158 | Water-absorbing agent and process for producing the same The present invention provides: a process for producing a water-absorbing agent at low temperature in a short time, wherein the water-absorbing agent has excellent balance between the absorption capacity without load and the absorption capacity under a load, high fl... | 10/26/2004 |
