Patent application number | Description | Published |
20090047395 | Multi-Compartment Package - A method for making a multi-compartment microwavable package having one or more open or closed compartments within the package, and method and apparatus for manufacturing the same, constructed by modification to existing vertical form, fill and seal packaging machines. The invention involves producing a multi-compartment bag having an internal permeable wall between compartments from a single sheet of flexible packaging film. A food product can be placed into the first compartment and steam pack can be placed into the second compartment. | 02-19-2009 |
20090061126 | Package and Multi-Layer Flexible Film Having Paper Containing Post Consumer Recycled Fiber - A multi-layer film and package with barrier properties made from a multi-layer film having one or more layers made with paper comprising post consumer reclaimed fibers is disclosed. In one aspect, the print web comprises a paper sheet made from post consumer reclaimed fibers. Unlike prior art petroleum-based films, the inventive film having PCR paper of the present invention is made from a renewable and/or recycled resource and is biodegradable. | 03-05-2009 |
20100221560 | Bio-Based In-Line High Barrier Metalized Film and Process for its Production - Bio-based high barrier metalized film such as PLA or PHA has an adhesion layer coated or co-extruded with the bio-based film and a metal oxide is disposed on the adhesion layer. The adhesion layer can be a co-extruded polyethylene terephthalate, nylon, polyglycolic acid, or ethylene vinyl alcohol. The adhesion layer can have a coating of EVOH, a nylon/EVOH blend, PVOH, PVOH/EAA mixtures, or a primer. | 09-02-2010 |
20110200796 | ENVIRONMENTALLY-FRIENDLY MULTI-LAYER FLEXIBLE FILM HAVING BARRIER PROPERTIES - A multi-layer film with barrier properties having one or more layers made from a bio-based film is disclosed. In one aspect, a multi-layer packaging film including (a) an outer layer including a bio-based film, wherein the bio-based film is polylactide, (b) an adhesive layer adjacent to the outer layer and (c) a product side layer including a metalized polyolefin having barrier properties, wherein the multi-layer packaging film is a flexible film. | 08-18-2011 |
20110200844 | COMPOSITION FOR FACILITATING ENVIRONMENTAL DEGRADATION OF A FILM - A multi-layer PLA film with barrier properties having one or more additives. In one aspect the additive can lower the glass transition temperature of the PLA to enhance the span of environments in which the PLA film can degrade. In one aspect, a plasticizer can be added to lower the glass transition temperature to facilitate degradation at lower temperatures. In one aspect, calcium carbonate can be added to a PLA film layer. | 08-18-2011 |
20130224446 | BIODEGRADABLE PACKAGE WITH SEALANT LAYER - A multi-layer packaging film comprising a bio-based layer and method for making the same. An outer layer comprising a bio-based film is adhered to a product side layer comprising a bio-based film having barrier properties. A non-compostable sealant layer is pattern applied to a portion of the product side layer. Because a portion of the bio-based product side layer is exposed, upon opening of the package the product side layer is susceptible to moisture. This allows for subsequent biodegradation or compostability of the films. In another embodiment the sealant layer comprises a water permeable material. Upon opening of the package moisture can subsequently contact the product side layer and initiate biodegradation. | 08-29-2013 |
20130251988 | COMPOSITION AND METHOD FOR MAKING A CAVITATED BIO-BASED FILM - Composition and method for making a multi-layer bio-based film having one or more cavitated layers. In one aspect, the multilayer flexible film has polylactic acid, an inorganic filler, and a cavitation stabilizer making up at least one film layer. In one aspect, the barrier web has a cavitated bio-based film layer. In another aspect, the print web has a cavitated bio-based film layer. | 09-26-2013 |
20140272304 | COMPOSITION AND METHOD FOR MAKING A FLEXIBLE PACKAGING FILM - Composition and method for making a flexible packaging film having highly loaded with at least one inorganic filler. A blown HDPE film comprising at least 50% by weight inorganic filler is oriented in the machine direction to increase yield and tensile strength, and reduce gauge variation to improve print qualities. | 09-18-2014 |
Patent application number | Description | Published |
20110036589 | WELLHEAD CONNECTION - A wellhead connection including first and second housings with the first housing partly within the second housing to form an annulus. The housings form a seal to a cylindrical inner bore when connected together. The first housing has a circumferential groove formed in its outer periphery. A radially expandable and contractable latch ring formed from latch ring segments is located in the annulus adjacent the circumferential groove. Radial actuators extend through the second housing to the latch ring segments to move the latch ring segments between a contracted position with the latch ring in contact with the circumferential groove, and an expanded position, with the latch ring out of contact with the circumferential groove. The upper and lower housings are adapted to lock the latch ring in the contracted position by applying a downward force on the latch rings, or by tightening the bottom connector to a wellhead member. | 02-17-2011 |
20110037251 | WELLHEAD PIPE COUPLING - A wellhead coupling and method for coupling and sealing an annulus formed between overlapping ends of an outer pipe and an inner pipe. A clamp housing grips the inner pipe, forms a horizontal landing base for the outer pipe, and forms circumferential ports aligned with the annulus. A seal ring and upper metal ring are located in the annulus, the seal ring being formed with ports to align with ports of the clamp housing, and the upper metal ring being formed with threaded holes to align with ports of the seal ring and the clamp housing. Threaded seal engaging members extend through the aligned ports for threaded connection in the threaded holes of the upper metal ring. A seal energizing member located within or below the clamp housing pulls downwardly on the threaded seal engaging members to energize the seal ring into sealing relationship in the annulus. | 02-17-2011 |
20110042065 | CASING HEAD CONNECTOR - A wellhead connection to casing is formed from an upper head housing, a slip bowl housing and slip segments. First compression spring extending vertically between slip segment and the a slip bowl housing, and second compression springs extending generally horizontally between adjacent slip segments maintain the slip segments out of gripping engagement with the casing until the slip bowl housing and the upper head housing are fully connected together. On disconnecting the housings, the first compression springs push the slip segments apart from the slip bowl housing, and the second compression springs push the slip segments radially apart from the casing. | 02-24-2011 |
Patent application number | Description | Published |
20090215077 | METHODS FOR DIAGNOSIS OF ACUTE CORONARY SYNDROME - Provided are methods for the detection and diagnosis of acute coronary syndrome or ACS. The methods are based on the discovery that abnormal levels of selected analytes in sample fluid, typically blood samples, of patients who are at risk are supportive of a diagnosis of ACS. At least two new biomarkers for ACS are thus disclosed, MMP-3 and SGOT. Altogether the concentrations of twelve analytes provide a sensitive and selective picture of the patient's condition, namely, whether the patient is suffering a heart attack. Other important biomarkers for ACS are described, including but not limited to IL-18, Factor VII, ICAM-1, Creatine Kinase-MB, MCP-1, Myoglobin, C Reactive Protein, von Willebrand Factor, TIMP-1, Ferritin, Glutathione S-Transferase, Prostate Specific Antigen (free), IL-3, Tissue Factor, alpha-Fetoprotein, Prostatic Acid Phosphatase, Stem Cell Factor, MIP-1-beta, Carcinoembryonic Antigen, IL-13, TNF-alpha, IgE, Fatty Acid Binding Protein, ENA-78, IL- | 08-27-2009 |
Patent application number | Description | Published |
20100132939 | SYSTEM AND METHOD FOR PROVIDING A DOWNHOLE MECHANICAL ENERGY ABSORBER - A system and a method are disclosed for providing a downhole mechanical energy absorber that protects downhole tools from impact loads and shock loads that occur during run-in contacts, tool drops, perforating blasts, and other impact events. A continuous localized inelastic deformation of a tube is a primary energy absorber in a load limiting design of the downhole mechanical energy absorber. | 06-03-2010 |
20100300750 | Perforating Apparatus for Enhanced Performance in High Pressure Wellbores - A perforating apparatus ( | 12-02-2010 |
20120152614 | COUPLER COMPLIANCE TUNING FOR MITIGATING SHOCK PRODUCED BY WELL PERFORATING - A method of mitigating perforating effects produced by well perforating can include causing a shock model to predict perforating effects for a proposed perforating string, optimizing a compliance curve of at least one proposed coupler, thereby mitigating the perforating effects for the proposed perforating string, and providing at least one actual coupler having substantially the same compliance curve as the proposed coupler. A well system can comprise a perforating string including at least one perforating gun and multiple couplers, each of the couplers having a compliance curve, and at least two of the compliance curves being different from each other. A method of mitigating perforating effects produced by well perforating can include interconnecting multiple couplers spaced apart in a perforating string, each of the couplers having a compliance curve, and selecting the compliance curves based on predictions by a shock model of shock generated by the perforating string. | 06-21-2012 |
20120152615 | PERFORATING STRING WITH LONGITUDINAL SHOCK DE-COUPLER - A shock de-coupler for use with a perforating string can include perforating string connectors at opposite ends of the de-coupler, a longitudinal axis extending between the connectors, and a biasing device which resists displacement of one connector relative to the other connector in both opposite directions along the longitudinal axis, whereby the first connector is biased toward a predetermined position relative to the second connector. A perforating string can include a shock de-coupler interconnected longitudinally between components of the perforating string, with the shock de-coupler variably resisting displacement of one component away from a predetermined position relative to the other component in each longitudinal direction, and in which a compliance of the shock de-coupler substantially decreases in response to displacement of the first component a predetermined distance away from the predetermined position relative to the second component. | 06-21-2012 |
20120152616 | PERFORATING STRING WITH BENDING SHOCK DE-COUPLER - A bending shock de-coupler for use with a perforating string can include perforating string connectors at opposite ends of the de-coupler. A bending compliance of the de-coupler may substantially increase between the connectors. A well system can include a perforating string including at least one perforating gun and multiple bending shock de-couplers, each of the de-couplers having a bending compliance, and at least two of the bending compliances being different from each other. A perforating string can include a bending shock de-coupler interconnected longitudinally between two components of the perforating string. A bending compliance of the bending shock de-coupler may substantially decrease in response to angular displacement of one of the components a predetermined amount relative to the other component. | 06-21-2012 |
20120255722 | PERFORATING STRING WITH LONGITUDINAL SHOCK DE-COUPLER - A shock de-coupler for use with a perforating string can include perforating string connectors at opposite ends of the de-coupler, a longitudinal axis extending between the connectors, and a biasing device which resists displacement of one connector relative to the other connector in both opposite directions along the longitudinal axis, whereby the first connector is biased toward a predetermined position relative to the second connector. A perforating string can include a shock de-coupler interconnected longitudinally between components of the perforating string, with the shock de-coupler variably resisting displacement of one component away from a predetermined position relative to the other component in each longitudinal direction, and in which a compliance of the shock de-coupler substantially decreases in response to displacement of the first component a predetermined distance away from the predetermined position relative to the second component. | 10-11-2012 |
20130153295 | COUPLER COMPLIANCE TUNING FOR MITIGATING SHOCK PRODUCED BY WELL PERFORATING - A method of mitigating perforating effects produced by well perforating can include causing a shock model to predict perforating effects for a proposed perforating string, optimizing a compliance curve of at least one proposed coupler, thereby mitigating the perforating effects for the proposed perforating string, and providing at least one actual coupler having substantially the same compliance curve as the proposed coupler. A well system can comprise a perforating string including at least one perforating gun and multiple couplers, each of the couplers having a compliance curve, and at least two of the compliance curves being different from each other. A method of mitigating perforating effects produced by well perforating can include interconnecting multiple couplers spaced apart in a perforating string, each of the couplers having a compliance curve, and selecting the compliance curves based on predictions by a shock model of shock generated by the perforating string. | 06-20-2013 |
20140202710 | METHOD AND APPARATUS FOR PRESSURE-ACTUATED TOOL CONNECTION AND DISCONNECTION - A method is presented for connecting and disconnecting sections of a work string for use in a subterranean wellbore. A preferred method of disconnecting includes the steps of positioning a stinger and a downhole tool assembly of a work string adjacent upper and lower sealing rams, such as in a BOP and lubricator assembly. The sealing rams are closed, defining a first and second pressure zone adjacent the tool. A differential pressure is applied across the pressure zones, moving a piston element in the tool assembly. Axial movement of the piston element causes relative rotational movement of cooperating locking elements. In one embodiment, the locking elements are rotated to an unlocked position and then move relative to one another axially in response to a biasing spring. The relative axial movement of the locking elements results in unlatching of a latching assembly, thereby disconnecting the tool and stinger. | 07-24-2014 |
20150240607 | PERFORATING APPARATUS AND METHOD HAVING INTERNAL LOAD PATH - A perforating apparatus for a gun string is presented. The apparatus experiences an axial load and potentially a radial load during use. A central charge-carrier supports shaped-charges and substantially bears the axial load on the apparatus during use. The charge-carrier is positioned within an exterior sleeve and the plurality of shaped-charges, upon detonation, perforate the exterior sleeve. The exterior sleeve does not bear a substantial portion of the axial load on the apparatus and can therefore be thinner and cheaper than in prior art assemblies. An annular space can be defined between the charge-carrier and exterior sleeve. The exterior tubular can bear the radial load due to differential pressure in one embodiment. Alternately, the apparatus includes radial support members extending between the charge-carrier and sleeve for transmitting radial load to the charge-carrier. Alternately, the sleeve and charge-carrier abut one another along a substantial portion of the length of the charge-carrier. | 08-27-2015 |
Patent application number | Description | Published |
20140076564 | Perforation Gun String Energy Propagation Management System and Methods - A perforation tool assembly. The perforation tool assembly comprises a tool string connector, a perforation gun coupled to the tool string connector, and a structure configured to absorb mechanical energy released by firing one or more perforation guns. The coupling is configured to provide a limited range of motion of the tool string connector relative to the perforation gun. The tool string connector and the perforation gun retain the structure configured to absorb mechanical energy. | 03-20-2014 |
20140076631 | Perforation Gun String Energy Propagation Management with Tuned Mass Damper - A perforation tool assembly comprises a perforation gun, and a mass energy absorber coupled to the perforation gun. The mass energy absorber is configured to alter the propagation of mechanical energy released by firing one or more perforation guns. The mass energy absorber comprises a mass and at least one absorber, and the at least one absorber is disposed between the mass and the perforating gun. | 03-20-2014 |
20140260591 | Protection of Electronic Devices Used with Perforating Guns - In an embodiment, a sensing subassembly for use with a downhole tool comprises a housing, a cavity extending into the housing, a sensor disposed at least partially within the cavity, a shock mitigating member disposed between at least one end of the sensor and the housing, and at least one seal member disposed between the sensor and the housing. At least a portion of the sensor is in fluid communication with an exterior of the housing, and the shock mitigating member is configured to attenuate at least a portion of a shock wave between the housing and the sensor. | 09-18-2014 |
20140262503 | Perforation Gun String Energy Propagation Management with Tuned Mass Damper - A perforation tool assembly comprises a perforation gun, and a mass energy absorber coupled to the perforation gun. The mass energy absorber is configured to alter the propagation of mechanical energy released by firing one or more perforation guns. The mass energy absorber comprises a mass and at least one absorber, and the at least one absorber is disposed between the mass and the perforating gun. | 09-18-2014 |
20140284137 | Protection of Electronic Devices Used with Perforating Guns - A sensing subassembly for use with a downhole tool comprises a housing, a cavity disposed within the housing, an electronic board disposed within the cavity, a stiffening member engaging the electronic board and configured to limit flexing of the electronic board, and a spring member configured to provide an isolation mount for the electronic board within the cavity. | 09-25-2014 |
20140290352 | Protection of Electronic Devices Used with Perforating Guns - A sensing subassembly for use with a downhole tool comprises a housing, a cavity disposed within the housing, at least one electronic component disposed within the cavity, and at least one isolating member disposed within the cavity. The at least one isolating member is configured to attenuate at least a portion of frequency components of a mechanical wave above a threshold and transmit at least a portion of frequency components below the threshold to the at least one electronic device. | 10-02-2014 |
20150135818 | Protection of Electronic Devices Used with Perforating Guns - A sensing subassembly for use with a downhole tool comprises a housing, a cavity disposed within the housing, an electronic board disposed within the cavity, a stiffening member engaging the electronic board and configured to limit flexing of the electronic board, and a spring member configured to provide an isolation mount for the electronic board within the cavity. | 05-21-2015 |
20150218904 | MULTI-ACTUATING PLUGGING DEVICE - A plugging device, apparatus, and method. The plugging device includes an expandable member configured to move from a first, retracted position to a second, expanded position, a counter configured to count a number of restrictions in a conduit that the plugging device passes through, and an actuator configured to move the expandable member from the first position to the second position in response to the counter counting a predetermined number of restrictions. The expandable member in the expanded position prevents the plugging device from passing through a target restriction. | 08-06-2015 |
20150316359 | CHARGE CASE FRAGMENTATION CONTROL FOR GUN SURVIVAL - A method for forming a perforation is disclosed. The method comprises positioning a perforating gun at a desired location in the formation. The perforating gun comprises a gun body and a charge carrier. The method further comprises disposing one or more shaped charges within the charge carrier. The one or more shaped charges comprise an outer case, an inner liner, and an explosive material retained between the outer case and the inner liner. The outer case of the shaped charge comprises one or more predefined fracture lines. The method further comprises detonating at least one shaped charge, wherein detonating the at least one shaped charge forms one or more perforations in the formation. | 11-05-2015 |
Patent application number | Description | Published |
20120273201 | Shock Load Mitigation in a Downhole Perforation Tool Assembly - A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train. | 11-01-2012 |
20120318508 | Shock Load Mitigation in a Downhole Perforation Tool Assembly - A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train. | 12-20-2012 |
20130248184 | Shock Load Mitigation in a Downhole Perforation Tool Assembly - A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train. | 09-26-2013 |
Patent application number | Description | Published |
20110073310 | Through Tubing Bridge Plug and Installation Method for Same - A through tubing bridge plug ( | 03-31-2011 |
20110073326 | Anchor Assembly and Method for Anchoring a Downhole Tool - An anchor assembly ( | 03-31-2011 |
20110073329 | Compression Assembly and Method for Actuating Downhole Packing Elements - A compression assembly ( | 03-31-2011 |
20140177392 | Acoustic Reception - A pressure-balanced acoustic-signal-receiving apparatus and methods therefor. The apparatus may comprise a first housing, a first actuator, a second housing, and a second actuator. The first housing may comprise a fluid chamber, a passage connecting a first and second portion of the fluid chamber, a tubular-contact assembly, an isolating member within the fluid chamber and coupled to the assembly, an acoustic-signal receiver within the isolating member and coupled to the assembly, and a communication member coupled to the receiver. A method for receiving an acoustic signal generated within a wellbore may comprise receiving the acoustic signal with a tubular-contact assembly, sensing the acoustic signal with an acoustic-signal receiver positioned within a fluid chamber and coupled to the assembly, equilibrating fluid pressures in the first and second portions of the fluid chamber, and transmitting information generated by the acoustic-signal receiver through a communication member. | 06-26-2014 |
20150275618 | THROUGH TUBING BRIDGE PLUG AND INSTALLATION METHOD FOR SAME - A through tubing bridge plug ( | 10-01-2015 |
Patent application number | Description | Published |
20080287623 | Cure systems for rubber compounds - The invention relates to the use of alkylphenol disulfide accelerators in butyl and halobutyl compounds. | 11-20-2008 |
20090115108 | Ethylene-Propylene Terpolymers in Tire Sidewalls - Disclosed is an ethylene-propylene-diene terpolymer having isotactic polypropylene crystallinity compounded with a blend rubber wherein the terpolymer can be present in an amount effective to improve tack, aged tensile strength retention, fatigue resistance, ozone cracking resistance, and reversion resistance. Also disclosed is an elastomer composition wherein the terpolymer can have at least 60 wt % propylene-derived units, at least 6 wt % ethylene-derived units and from 0.3 to 10 wt % diene-derived units, and a tire sidewall composition comprising from 10 to 30 phr terpolymer, from 20 to 60 phr natural rubber, from 20 to 60 phr polybutadiene rubber, and an optional secondary blend rubber. Also disclosed is a vulcanizate of the elastomer composition, and articles, tire sidewalls, tires, retreaded tires, bias truck tires, off-road tires, and passenger automobile tires made with the vulcanizate. Further disclosed are processes for making molded articles and tires, and for retreading tires. | 05-07-2009 |
20090186965 | Elastomeric Compositions Comprising Hydrocarbon Polymer Additives - Provided are elastomeric compositions comprising at least one elastomer and a hydrocarbon polymer additive. Preferably the hydrocarbon polymer additive comprises from 60 to 90% piperylene, from 5 to 15% cyclic components, from 5 to 20% styrenic components, up to 5% isoprene, up to 5% indenic components, and up to 10% amylene. Also provided are elastomeric compositions comprising at least one elastomer and a hydrocarbon polymer additive, wherein the hydrocarbon polymer additive has a molecular weight of from 520 to 650 g/mole and a glass transition temperature (Tg) of from 48 to 53° C. The elastomeric compositions are particularly useful in making tires and other cured rubber articles. | 07-23-2009 |
20100036025 | Elastomeric Compositions Comprising Hydrocarbon Polymer Additives Having Improved Impermeability - An elastomeric compositions having improved impermeability is disclosed. The cured elastomeric composition may comprise at least one C | 02-11-2010 |
20110152422 | Elastomeric Nanocomposites, Nanocomposite Compositions, and Methods of Manufacture - A nanocomposite is formed from at least one copolymer and at least one nanofiller. The copolymer is formed of units derived from isoolefins having from 4 to 7 carbon atoms and multiolefins. The nanofiller comprising a surfactant wherein the surfactant has the structure of (R | 06-23-2011 |
20120190772 | Elastomeric Nanocomposites, Nanocomposite Compositions, and Methods of Manufacture - An elastomeric nanocomposite contains: (a) at least one elastomer comprising units derived from isoolefins having from 4 to 7 carbon atoms; (b) at least 10 phr of a carbon black; and (c) at least 1 phr of a nanoclay; wherein when the nanocomposite is used in an article, the article has a gas permeation coefficient of 80.0 cc*mm/[m | 07-26-2012 |
20130087263 | CONSTRUCTION COMPRISING TIE LAYER - A layered structure suitable for use in a pneumatic tire as an innerliner is prepared by directly bonding a fluid permeation prevention film and an adhesive tie layer. Prior to the bonding, the fluid permeation prevention layer is treated to remove any residual plasticizers or oils on the surface of the film. The tie layer comprises 100 weight % of at least one halogenated isobutylene containing elastomer and about 1 to about 20 parts per hundred (phr) of at least one tackifier. The fluid permeation prevention film comprises an elastomeric component dispersed in a vulcanized or partially vulcanized state, as a discontinuous phase, in a matrix of the thermoplastic resin component. The two layers of the layered structure may be separately extruded and then adhered to each other or adhered to each other during a calendaring operation wherein the adhesive tie layer composition is coated onto the treated film. | 04-11-2013 |
Patent application number | Description | Published |
20100036038 | Elastomeric Compositions Having Improved Properties - Elastomeric compositions comprising at least one C | 02-11-2010 |
20110060086 | Elastomeric Copolymers, Copolymer Compositions, and Their Use in Articles - A copolymer is formed from an isoolefin having from 4 to 7 carbon atoms and an alkylstyrene. The copolymer has a substantially homogeneous compositional distribution. The copolymer has from about 8 to about 12 wt % of alkylstyrene and at least 85 wt % of isoolefin. The copolymer is preferably halogenated with about 1.1 to about 1.5 wt % of a halogen. The copolymer may in elastomeric nanocomposites. To obtain a good dispersion of the nanoclay in a formulated compound, at least one cure accelerator is selected from the group consisting of mercaptobenzothiazole disulfide, mercaptobenzothiazole, cyclohexyl benzothiazole disulfide, dibutyl thiourea, tetramethylthiuram disulfide, 4-4-dithiodimropholine, zinc dimethyldithiocarbamate, and zinc dibutylphosphorodithiate. | 03-10-2011 |
20110094645 | Innerliners for Off-Road, Farm, Large Truck and Aircraft Tires - Disclosed is a pneumatic tire comprising an innerliner comprising a functionalized poly(isobutylene-co-p-methylstyrene) elastomer, at least one layered filler; and less than 8 phr of at least one processing aid; wherein the innerliner possesses a permeation coefficient of less than 200 mm·cm | 04-28-2011 |
20110098405 | Elastomer Nanocomposites With Incorporated Process Oils - This disclosure is directed to nanocomposite compositions that are suitable for air bladders, innertubes, innerliners and other desirable air-retention articles. In particular, this disclosure is directed to compositions that include the nanocomposite, the nanocomposite made in such that its air-retention properties are much improved over what is known, while maintaining desirable elasticity and processability. In a particular aspect, an air-retention article such as an innerliner if formed by first contacting a desirable elastomer, especially a functionalized poly(isobutylene-co-p-methylstyrene) elastomer, with one or more layered fillers such as a clay described further below, and also contacting one or more processing aids, and one or more solvents to form an nanocomposite composition. The nanocomposite composition is then precipitated to form the solid nanocomposite composition which can be dried and further blended with other suitable ingredients such as, for example, curative agents, thus forming an innerliner suitable for a tire or other article. | 04-28-2011 |
20110265927 | Elastomeric Nanocomposites, Nanocomposite Compositions, and Methods of Manufacture - A nanocomposite comprising at least one elastomer and at least one nanofiller. The elastomer comprises units derived from isoolefins having from 4 to 7 carbon atoms and at least one multiolefin. The nanofiller comprise a layered filler and an amine modifier wherein the nanofiller is substantially free of any unassociated amines. By eliminating unassociated amines in the nanofiller, prior to contact with the elastomer, the nanocomposite has improved processability characteristics while maintaining desired impermeability characteristics. | 11-03-2011 |
20110294939 | Elastomeric Nanocomposite Manufacturing - An elastomeric nanocomposite is produced from an isobutylene-based polymer and a layered nanofiller. The process of preparing the nanocomposite includes the steps of a) polymerizing isobutylene monomers and multiolefin monomers to produce an isobutylene-based polymer; b) completing at least one mass transfer dependent stage in the process wherein, after completion of the stage and prior to any recovery of the polymer, the polymer is dissolved in a solvent to create a polymer cement; c) contacting the layered nanofiller and the polymer solvent to obtain the nanocomposite; and d) recovering the nanocomposite. The layered nanofiller may be in a slurry prior to contacting with the polymer cement. | 12-01-2011 |
20130087953 | Tire Curing Bladders - An elastomeric composition for a curing bladder comprises isobutylene based elastomer, curative and a hydrocarbon polymer modifier comprising monomers selected from the group consisting of piperylenes, cyclic pentadienes, aromatics, limonenes, pinenes, amylenes, and combinations thereof, wherein the cyclic pentadienes comprise at least 10 weight percent of the monomers by total weight of the monomers. Also disclosed are a tire curing bladder made from the elastomeric composition, a tire curing press containing the bladder, a method of making the tire curing bladder, an improvement to the process of making the tire curing bladder to improve processability of the mixture and fatigue life and DeMattia cut growth, a method of making a tire using the tire curing bladder, and an improvement to the process of making a tire to extend a pull point of the curing bladder and/or to reduce the curing time for the tire construct. | 04-11-2013 |
20140166176 | Contoured Tire Innerliners and Methods of Making Thereof - This disclosure is directed to a tire innerliner comprising a dynamically vulcanized alloy of an elastomer and an engineering resin; wherein the innerliner is contoured. The disclosure further relates to methods of making such innerliners and tires made from such innerliners. | 06-19-2014 |
20150021816 | Propylene Copolymers in Elastomeric Compositions - Disclosed is an ethylene-propylene copolymer having isotactic polypropylene crystallinity compounded with a halobutyl rubber in an amount effective to improve one or more of aged tensile strength retention, fatigue resistance, and dimensional stability. Also disclosed is an elastomer composition wherein the copolymer can have at least 60 wt % propylene-derived units and at least 6 wt % ethylene-derived units, and a tire inner tube or tire innerliner composition comprising from 1 to 10 phr copolymer. Also disclosed is a vulcanizate of the elastomer composition, and articles, tire innerliners, tires, and tire inner tubes comprising the vulcanizate. Further disclosed are processes for making molded articles, tire inner tubes and tires. | 01-22-2015 |