Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8178465 | Polydispersity-controlled isoolefin polymerization with polymorphogenates The disclosure provides for a process and polymerization system to produce isoolefin polymers (72) utilizing polymorphogenates (16, 26) in the catalyst system to control polydispersity (MWD). The disclosure also provides a catalyst system (20) c... | 05/15/2012 |
| 8158721 | Process for preparing dynamically vulcanized alloys This invention relates to processes for the preparation of a dynamically vulcanized alloy comprising at least one isobutylene-containing elastomer and at least one thermoplastic resin. More specifically, the processes produce dynamically vulcanized alloys with uniqu... | 04/17/2012 |
| 8153719 | Composites comprising elastomer, layered filler and tackifier The invention relates to rubber nanocomposites particularly suitable for innerliners and other tire applications. The uncured nanocomposite comprises an elastomer, tackifier and nanoclay. ... | 04/10/2012 |
| 8148450 | Process to produce a hydrocarbon rubber cement utilizing a hydrofluorocarbon diluent Provided for herein is a process to produce an essentially homogeneous single liquid phase hydrocarbon-rubber cement from a polymer slurry comprising a hydrocarbon-rubber, a diluent, and unreacted monomer(s), the process comprising: | 04/03/2012 |
| 8071835 | Process to produce polyolefins using metallocene catalysts The invention is directed to a process for producing polyolefins by one or more homogeneous or colloidal polymerization catalyst wherein residual catalyst is removed by using a solid sorbent. ... | 12/06/2011 |
| 8071514 | Silicone functionalized fluids with low traction characteristics A highly branched functionalized silicone backbone lubricating fluid which provides exceptionally low traction, a method of lowering traction coefficients in lubricating compositions, and to uses of such compositions. ... | 12/06/2011 |
| 7989670 | Process to produce high viscosity fluids This invention relates to processes to produce liquid poly-alpha-olefins (PAOs) having a kinematic viscosity at 100° C. of more than 20 cSt in the presence of a metallocene catalyst with a non-coordinating anion activator and hydrogen. ... | 08/02/2011 |
| 7985793 | Composites comprising elastomer, layered filler and tackifier The invention relates to rubber nanocomposites particularly suitable for innerliners and other tire applications. The uncured nanocomposite comprises an elastomer, tackifier and nanoclay. ... | 07/26/2011 |
| 7981991 | Separation of polymer slurries Methods for producing elastomers or elastomeric compositions are provided. One or more C4 to C7 isoolefins and one or more comonomers can be polymerized in the presence of a diluent comprising one or more hydrofluorocarbons to provide a slurry ... | 07/19/2011 |
| 7923491 | Graphite nanocomposites Elastomeric compositions comprising graphite nanoparticles (preferably graphene nanoparticles) and methods for making same. Such compositions are useful for tire innertubes and tire innerliners. ... | 04/12/2011 |
| 7910662 | Halogenation processes The invention discloses improved processes to halogenate polymers. In particular, the invention discloses to improved processes to halogenate polymers made from C4-1012 isoolefins. ... | 03/22/2011 |
| 7893176 | Polydispersity-controlled isoolefin polymerization with polymorphogenates The disclosure provides for a process and polymerization system to produce isoolefin polymers (72) utilizing polymorphogenates (16, 26) in the catalyst system to control polydispersity (MWD). The disclosure also provides a catalyst system (20) c... | 02/22/2011 |
| 7858735 | Method and apparatus for elastomer finishing In the production of elastomers the product obtained from the polymerization process is often in the form of a slurry. Described herein are an apparatus and a process for “finishing” the elastomer, i.e., dewatering and drying the elastomer. The process comprises... | 12/28/2010 |
| 7838471 | Blend comprising group II and group IV basestocks The invention relates to compositions comprising a blend of Group II basestocks and low volatility, low viscosity PAO basestocks. The blend is particularly useful for preparing finished lubricants that meet or even exceed the criteria for SAE Grade 0W multi-grade en... | 11/23/2010 |
| 7825181 | Modified layered fillers and their use to produce nanocomposite compositions The present invention relates to modified layered fillers made from layered fillers and modifying agents and processes to produce the same. The invention also relates to nanocomposite compositions made from these modified layered fillers and elastomers, and processe... | 11/02/2010 |
| 7781547 | Reactor systems for use in polymerization processes The invention relates to new polymerization processes using hydrofluorocarbons to produce polymers. In particular, the invention relates to new polymerization processes using turbulent flow reactor systems using diluents including one or more hydrofluorocarbon(s) to... | 08/24/2010 |
| 7772308 | Air barrier composition for innertubes According to the invention, a processing aid is used to improve processing in a green (uncured) rubber composition, such as in downstream in-plant processing of an innertube compound, and maintaining, or more preferably, reducing the air permeability of the cured co... | 08/10/2010 |
| 7770621 | Air barrier composition for innerliners According to the invention, a processing aid is used to improve processing in a green (uncured) rubber composition, such as in downstream in-plant processing of an innerliner compound, and maintaining, or more preferably, reducing the air permeability of the cured c... | 08/10/2010 |
| 7767743 | Processable branched isoolefin-alkylstyrene elastomers A branched isobutylene-styrenic elastomer with a broad molecular weight distribution is disclosed comprising an interpolymer of an isoolefin monomer as isobutylene, a styrenic monomer such as p-methylstyrene, and a multiolefin such as divinylbenzene. The elastomer h... | 08/03/2010 |
| 7732389 | Lubricating fluids with low traction characteristics The invention relates to lubricating fluids and oil formulations which provide exceptionally low traction, a method of lowering traction coefficients in lubricating compositions, and to uses of such compositions. ... | 06/08/2010 |
| 7723447 | Polymerization processes The invention provides for a process to produce polymers utilizing a hydrofluorocarbon diluent. ... | 05/25/2010 |
| 7699962 | Processes utilizing extractive distillation The invention relates to methods for separating mixture components such as reactor effluent components. In particular, the invention relates to the use of an extractive agent such as a hydrocarbon in an extractive distillation process to separate monomers such as a ... | 04/20/2010 |
| 7696266 | Select elastomeric blends and their use in articles The present invention relates to select elastomeric blends including at least one halogenated random copolymer. In particular, the present invention relates to compositions including at least one halogenated random copolymer of isobutylene and methylstyrene, prefera... | 04/13/2010 |
| 7652186 | Method of making low viscosity PAO The invention relates to a method of making a PAO characterized by a low viscosity, low Noack volatility, and excellent cold temperature properties, using a promoter system comprising an alcohol and an ester. The products comprise trimers obtained by fractionating a... | 01/26/2010 |
| 7652185 | Catalyst recovery process A process for reducing boron trifluoride usage and emissions associated with PAO manufacture, the process comprising distilling a portion of the crude PAO product containing a boron trifluoride-organic catalyst at a temperature sufficient to cause the boron trifluor... | 01/26/2010 |
| 7648948 | Additive system for lubricants The invention relates to compositions suitable as additive packages for lubricants and other functional fluids, the composition comprising sulfur-containing extreme pressure components, phosphorus-containing anti-wear additives, a triazole-containing species. A pref... | 01/19/2010 |
| 7638573 | Butyl nanocomposite via low Mw elastomer pre-blend The present invention provides a method to form a nanocomposite including blending a high molecular weight elastomer, a low molecular weight elastomer, and a clay to form a nanocomposite; wherein the high molecular weight elastomer has a weight average molecular wei... | 12/29/2009 |
| 7632886 | Elastomer nanocomposites comprising isobutylene and multifunctional oligomers The present invention provides a nanocomposite of an elastomer, a polymer or oligomer functionalized with a polar group, and a clay. The nanocomposite can be a mixture of a halogenated elastomer, an acid or acid anhydride modified polymer, and a clay, desirably an e... | 12/15/2009 |
| 7629397 | Phase separation process utilizing a hydrofluorocarbon Provided for herein is a process for separating a hydrocarbon-rubber from a hydrofluorocarbon diluent comprising contacting a polymer slurry comprising the hydrocarbon-rubber dispersed within the hydrofluorocarbon diluent with a hydrocarbon solvent capable of dissol... | 12/08/2009 |
| 7629303 | Fluids having partially hydrogenated substituted styrene linear dimers and method of making same A basestock that comprises a fully hydrogenated substituted styrene linear dimer; a partially hydrogenated mono-aromatic substituted styrene linear dimer; and a partially hydrogenated di-aromatic substituted styrene linear dimer. A process of producing a basestock t... | 12/08/2009 |
| 7605205 | Nanocomposite compositions and processes for making the same The invention provides for processes for preparing a nanocomposite compositions including the steps of: contacting a multifunctional intercalant including a cationic moiety separated from an anionic moiety by at least 1 carbon, with a clay at a temperature and for a... | 10/20/2009 |
| 7592497 | Low viscosity polyalphapolefin based on 1-decene and 1-dodecene The invention relates to a method of making a PAO from mixtures comprising 1-decene and 1-dodecene, characterized by a low viscosity and excellent cold temperature properties, using a promoter system comprising an alcohol. In embodiments, the product has properties ... | 09/22/2009 |
| 7585914 | Thermoplastic elastomer compositions and methods for making the same The present invention provides a thermoplastic composition which may be unvulcanized or vulcanized. The thermoplastic composition can be a blend of a thermoplastic engineering resin, a halogenated terpolymer of a C4 to C7 isomonoolefin, a para-... | 09/08/2009 |
| 7585823 | Lubricating fluids with enhanced energy efficiency and durability The present invention comprises novel lubricating compositions, automotive gear lubricating compositions, and fluids useful in the preparation of finished automotive gear lubricants and finished gear oils, and methods of preparation thereof. One embodiment of the pr... | 09/08/2009 |
| 7582715 | Polymers substantially free of long chain branching The invention relates to new polymerization processes including diluents including hydrofluorocarbons and their use to produce novel polymers substantially free of long chain branching. In particular, the invention relates to copolymers of an isoolefin, preferably i... | 09/01/2009 |
| 7557170 | Method for reducing depositions in polymerization vessels The method of polymerization includes the steps of a) providing a catalyst system, b) providing at least one monomer or comonomer mixture in a reaction vessel, c) introducing the catalyst into the reaction vessel, and d) polymerizing the at least one monomer or como... | 07/07/2009 |
| 7550640 | High viscosity PAOs based on 1-decene/1-dodecene This invention relates to the use of 1-decene/1-dodecene olefin mixture to produce high viscosity polyalphaolefins (PAOs) having a viscosity of from about 40 cSt to about 100 cSt at 100° C. (ASTM D-445) and a number average molecular weight of between about 1200 to... | 06/23/2009 |
| 7547811 | High viscosity polyalphaolefins based on 1-hexene, 1-dodecene and 1-tetradecene This invention relates to the use of olefin mixtures containing 1-hexene/1-decene/1-dodecene and, additionally, 1-octene or 1-decene to produce high viscosity polyalphaolefins (PAOs) having a viscosity of from about 40 cSt to about 100 cSt at 100° C. (ASTM D-445) a... | 06/16/2009 |
| 7544850 | Low viscosity PAO based on 1-tetradecene Disclosed herein is a method of making a PAO using tetradecene and particularly mixtures comprising 1-hexene, 1-decene, 1-dodecene, and 1-tetradecene, characterized by a low viscosity and excellent cold temperature properties, using a promoter system comprising an a... | 06/09/2009 |
| 7491764 | Low permeability nanocomposites The present invention includes blends of a halogenated elastomer such as a butyl rubber or an interpolymer of, on one embodiment, a C4 to C7 isomonoolefin, a para-methylstyrene and a para-(halomethylstyrene), the interpolymer having been pre-mi... | 02/17/2009 |
