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ExxonMobil Chemical Patents Inc. Patents
Assignee:
ExxonMobil Chemical Patents Inc.
Address:
Houston, TX
No. of patents:
1064
Patents:


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Patent Number Title Of Patent Date Issued
7094390 Macrostructures of porous inorganic material and process for their preparation August 22, 2006
There is provided macrostructures of porous inorganic material which can have controlled size, shape, and/or porosity and a process for preparing the macrostructures. The macrostructures comprise a three-dimension network of particles of porous inorganic materials. The process for pr
7094389 Chabazite-containing molecular sieve, its synthesis and its use in the conversion of oxygenates August 22, 2006
A crystalline material substantially free of framework phosphorus and comprising a CHA framework type molecular sieve with stacking faults or at least one intergrown phase of a CHA framework type molecular sieve and an AEI framework type molecular sieve, wherein said material, in its
7090814 Method of synthesizing silicoaluminophosphate molecular sieves August 15, 2006
In a method of synthesizing a silicoaluminophosphate molecular sieve, a synthesis mixture is prepared by combining a source of phosphorus and at least one organic directing agent; and then cooling the combination of the phosphorus source and organic directing agent to a temperature of
7090765 Process for cracking hydrocarbon feed with water substitution August 15, 2006
A process for treating hydrocarbon feed in a furnace, the process comprising: (a) heating hydrocarbon feed, (b) adding water to the heated feed, (c) adding dilution steam to the heated feed to form a mixture, (d) heating the resulting mixture and feeding the resulting heated mixture to
7090081 Selectively removing undesirably sized catalyst particles from a reaction system August 15, 2006
The present invention provides various processes for selectively removing undesirably sized catalyst particles from a reaction system. In one embodiment, a plurality of catalyst particles, having a first median particle diameter, is withdrawn from the reaction system and is directed
7087794 Oxygenate conversion in the presence of highly unsaturated compounds August 8, 2006
The present invention provides a process for treating a stream, say, an olefins stream, e.g., propylene, containing at least one ether, e.g., dimethyl ether, and/or at least one of an alkyne and an alkadiene, e.g., methyl acetylene and propadiene, typically present as impurities. The
7084319 Catalyst fluidization in oxygenate to olefin reaction systems August 1, 2006
The present invention provides various processes for fluidizing molecular sieve catalyst compositions in a fluidized bed reaction system. The invention comprises fluidizing a molecular sieve catalyst composition with a reactive fluidizing medium under conditions effective to convert
7084292 Integrated process for preparing dialkyl carbonates with a circulating catalyst August 1, 2006
An integrated process for the production of a dialkyl carbonate and a diol from an alkylene oxide, carbon dioxide and an aliphatic monohydric alcohol is described in which an alkylene oxide is first reacted with carbon dioxide in the presence of a homogeneous carbonation catalyst to
7084223 Supported late transition metal catalyst systems August 1, 2006
The invention encompasses late transition metal catalyst systems immobilized on solid supports and their use in heterogenous polymerization processes, particularly in gas phase polymerization of olefin monomers. Preferred embodiments include a late transition metal catalyst system co
7084218 Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers August 1, 2006
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends a
7083762 Multiple riser reactor with centralized catalyst return August 1, 2006
The present invention is directed to a hydrocarbon conversion apparatus and process. The apparatus comprises the following: a plurality of riser reactors, each having a first end into which a catalyst is fed, a second end through which the catalyst can exit, and optionally a center axis
7081556 Aromatics conversion with ITQ-13 July 25, 2006
There is provided a process for aromatics conversion by contacting a feed suitable for aromatics conversion under conversion condition and in the presence of a catalyst comprising ITQ-13. Examples of such conversion processes include isomerization of aromatic (xylenes) feedstock, dis
7081553 Cobalt flash process July 25, 2006
The Cobalt Flash Process is modified by replacing formic acid with acetic acid as process acid. Efficiency using acetic acid as process acid is achieved by two improvements which may be added separately and independently: (1) separation of acetic acid and water from the condensate di
7081543 Bridged biscyclopentadienyl ligands and method of preparation July 25, 2006
The present invention relates to ligands and the synthesis of those ligands for use in metallocene complexes. More particularly, the present invention relates to the synthesis of diarylsilyl bridged biscyclopentadienes using diarylsilyldisulfonates. Even more particularly, the presen
7081299 Polypropylene fibers and fabrics July 25, 2006
The present invention is a meltblown fiber and a fabric manufactured from the fiber comprising reactor grade polypropylene having a melt flow rate of from 100 to 5000 and having less than 50 stereo defects per 1000 units. Further, the polypropylene is typically produced from a metall
7077977 Bulky borate activations July 18, 2006
A discrete polyolefin catalyst activator is disclosed. A salient feature of invention borate-based activators is that at least one of the ligands on the borate non-coordinating anion (NCA) comprises a fluorinated aryl group linked to the boron atom through an acetylenic group appropriate
7074979 Processing a contaminated oxygenate-containing feed stream in an oxygenate to olefin reaction sy July 11, 2006
A feed vaporization process and apparatus for oxygenate to olefin conversion is provided, which uses a vapor-liquid disengaging drum to separate non-volatiles and/or low-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is reduced in non-volatiles a
7074971 Recovery of ethylene and propylene from a methanol to olefin reaction system July 11, 2006
The present invention provides new highly-efficient separation processes and systems for separating polymerization-grade ethylene and propylene from an initial effluent stream comprising ethane, ethylene, propylene, dimethyl ether, and one or more of propane, acetylene, methyl acetylene,
7074739 Multi-component molecular sieve catalyst compositions and their use in aromatics reactions July 11, 2006
The invention relates to a process for producing alkylated aromatic hydrocarbons, preferably with an oxygen or sulfur containing alkylating agent, in the presence of a multi-component molecular sieve catalyst composition that includes a molecular sieve and an active metal oxide. The
7074384 Crystalline molecular sieves July 11, 2006
A new family of crystalline molecular sieves is described having a characteristic XRD pattern as illustrated in FIG. 1, and having three sharp peaks at 2.theta. (CuK.sub..alpha.) of 8.82, 12.44, and 23.01.
7071136 Attrition resistant molecular sieve catalysts July 4, 2006
This invention is directed to a hardened molecular sieve catalyst composition, a method of making the composition and a method of using the composition. The catalyst composition is made by mixing together molecular sieve, liquid, and an effective hardening amount of a dried molecular
7067603 Adhesive alpha-olefin inter-polymers June 27, 2006
The invention relates to novel adhesive alpha-olefin inter-polymers which are largely amorphous and have a rheological behavior that makes them suitable for adhesive use, both without and with minimzed amounts of tackifying resins. Specifically, the invention poly-alpha olefin inter-
7067597 Process of making polypropylene from intermediate grade propylene June 27, 2006
This invention concerns using an intermediate grade propylene stream as feed to a polypropylene forming reaction system. The intermediate grade propylene stream is preferably recovered form the olefin product of an oxygenate to olefins reaction process, and low in dimethyl ether content.
7067450 Soluble late transition metal catalysts for olefin oligomerizations III June 27, 2006
A series of soluble .alpha.-diimine late transition metal catalysts has been invented comprising a substituted or unsubstituted catecholate ligand. The catalysts demonstrate high activity and selectivity for linear .alpha.-olefins. As such, these catalysts conveniently oligomerize et
7067108 Chabazite-type molecular sieve, its synthesis and its use in the conversion of oxygenates to ole June 27, 2006
The synthesis of a crystalline material, in particular a high silica zeolite, having a chabazite-type framework is aided by the addition to the synthesis mixture of seeds of an AEI framework-type material. The chabazite-type product has a relatively small crystal size and exhibits ac
7067095 Synthesis of silicoaluminophosphate molecular sieves June 27, 2006
In a method of synthesizing a silicoaluminophosphate molecular sieve comprising at least one intergrown phase of an AEI framework type material and a CHA framework type material, a first synthesis mixture is prepared comprising water and sources of phosphorus, aluminum and optionally
7067052 Process for the production of reformate having reduced ethylbenzene content June 27, 2006
A process for reforming a hydrocarbon feed containing precursors of ethylbenzene, e.g., C.sub.8 isoalkane and/or C.sub.8 isoalkene precursors of ethylbenzene, that results in the formation of reduced amounts of ethylbenzene. The process is carried out in a catalytic reforming unit co
7060866 High pressure separation of dimethyl ether from an olefin stream June 13, 2006
Disclosed is a method of removing dimethyl ether from an ethylene and/or propylene containing stream. Dimethyl ether is removed at a high pressure, preferably in a distillation column. The high pressure separation has the benefit of providing a relatively low bottoms temperature sepa
7060865 Recovery of C4 olefins from a product stream comprising C4 olefins, dimethyl ether and C5+ hydro June 13, 2006
Disclosed is a process for removing DME from a stream containing C4 olefins. The process includes providing a first stream comprising C4 olefins, C5+ hydrocarbons, DME, and methanol. The first stream is separated into a second stream comprising the C4 olefins and the DME and a third
7060753 Thermoplastic elastomers having improved barrier properties June 13, 2006
Thermoplastic vulcanizates having improved barrier properties, comprising a high melt flow index thermoplastic olefin resin, butyl rubber and an oligomer of isobutylene and butene.
7057083 Catalyst pretreatment with C4-C7 olefins in an oxygenate to olefins reaction system June 6, 2006
This invention relates to processes for converting oxygenates to olefins that include a step of pretreating molecular sieve used in the conversion reaction with a C.sub.4 C.sub.7 olefin composition, which contains one or more C.sub.4 C.sub.7 olefins. Fresh or regenerated molecular sieve,
7056993 Process for producing propylene alpha-olefin polymers June 6, 2006
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends a
7056992 Propylene alpha-olefin polymers June 6, 2006
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends a
7056982 Thermoplastic polymer blends of isotactic polypropylene and alpha-olefin/propylene copolymers June 6, 2006
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends a
7056869 Hydrocarbon fluids June 6, 2006
Hydrocarbon fluids are provided which have ASTM D-86 boiling point ranges within 235.degree. C. to 400.degree. C. and a naphthenic content greater than 60%, the naphthenics containing polycyclic materials, the fluids preferably have an aromatic content below 2% and an aniline point below
7053260 Reducing temperature differences within the regenerator of an oxygenate to olefin process May 30, 2006
The present invention provides a process for making an olefin product from an oxygenate feedstock which comprises:a) contacting the feedstock in a reaction zone with a catalyst comprising i) a molecular sieve having defined pore openings and ii) a CO oxidation metal, under conditions
7053258 Process for selectively producing aromatic compounds May 30, 2006
A process is disclosed for selectively producing one or more aromatic compounds selected from benzene, toluene, para-xylene, meta-xylene, ortho-xylene, ethylbenzene and mixtures thereof from a feed containing C.sub.6 C.sub.20 hydrocarbons and/or C.sub.6 C.sub.8 alcohols. The feed is
7053164 Thermoplastic polymer blends of isotactic polypropropylene and alpha-olefin/propylene copolymers May 30, 2006
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends a
7053153 Ethylene copolymer compositions suitable for viscosity index improvers and lubricant composition May 30, 2006
The present invention provides processes for making a bimodal solid polymer composition suitable for use as a viscosity index improver. Ethylene and an alpha-olefin comonomer are polymerized in the presence of a metallocene catalyst to form first and second copolymers, in series or p
7052664 Process for manufacture of molecular sieves May 30, 2006
Small particle size silicoaluminophosphate molecular sieves are obtained by providing the source of the silicon in the form of a basic organic solution.
7049457 Use of an ionic halide free copper catalyst for the production of dialkyl carbonates May 23, 2006
A non-corrosive process for the preparation of dialkyl carbonate by reacting carbon monoxide, alkanol and an oxygen-containing gas in the presence of a ionic halogen free copper catalyst.
7049372 Propylene alpha-olefin polymer blends May 23, 2006
Improved thermoplastic polymer blend compositions comprising an isotactic polypropylene component and an alpha-olefin and propylene copolymer component, said copolymer comprising crystallizable alpha-olefin sequences. In a preferred embodiment, improved thermoplastic polymer blends a
7048833 Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxyg May 23, 2006
A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is reduced in non-vola
7045672 Catalyst pretreatment with dimethyl ether in an oxygenate to olefins reaction system May 16, 2006
This invention relates to processes for converting oxygenates to olefins and olefins to polyolefins. The processes include a step of pretreating molecular sieve used in the conversion of oxygenate to olefin with a dimethyl ether composition. Fresh or regenerated molecular sieve, which
7045583 Olefin polymerization catalyst system May 16, 2006
This invention relates to a catalyst precursor compound comprising a tridentate phenoxy-amide-amine group bound to a group 3 to 12 metal or lanthanide metal. In particular, this invention relates to a catalyst precursor compound represented by the formula: ##STR00001##
7041841 Process for producing crystalline poly-.alpha.-olefins with a monocyclopentadienyl transition me May 9, 2006
The invention is a catalytic process using a Group IV B transition metal component and an alumoxane component to polymerize .alpha.-olefins to produce high crystallinity and high molecular weight poly-.alpha.-olefins.
7038102 Liquid contacting of post-quench effluent vapor streams from oxygenate to olefins conversion to May 2, 2006
A process is provided for converting oxygenate to olefins from a fluidized bed reactor which comprises removal of catalyst fines from a quenched vaporous effluent by contacting with a liquid low in catalyst fines content, e.g., oxygenate feedstock, or by-product water from the oxygen
7038100 Aromatics alkylation May 2, 2006
The present invention provides a process for producing an alkylaromatic compound comprising the step of contacting an alkylatable aromatic compound with an alkylating agent under alkylation conditions in the presence of a alkylation catalyst comprising phosphorus and a porous crystal
7038097 Dual bed process using two different catalysts for selective hydrogenation of acetylene and dien May 2, 2006
It has been discovered that a dual bed process using two different catalysts for the selective hydrogenation of acetylene and/or methyl acetylene (MA) and/or propadiene (PD) in a light olefin-rich feedstream can be accomplished with less selectivity to making oligomers (green oil) as
7037989 Copolymers of ethylene and/or .alpha.-olefins and vicinally disubstituted olefins May 2, 2006
Substantially random ethylene and/or .alpha.-olefin copolymers containing units derived from vicinally disubstituted olefin monomers are described. The vicinally disubstituted olefin monomers may be represented by the generic formula (R.sup.1)CH.dbd.CH(R.sup.2), where R.sup.1 and R.sup.2
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