Patent application number | Description | Published |
20080262175 | Catalyst Composition Comprising Shuttling Agent for Regio-Irregular Multi-Block Copolymer Formation - Copolymers, especially multi-block copolymer containing therein two or more segments or blocks, are prepared by polymerizing propylene, 4-methyl-1-pentene, or another C | 10-23-2008 |
20080275189 | Control of Polymer Architecture and Molecular Weight Distribution Via Multi-Centered Shuttling Agent - A process for the polymerization of one or more addition polymerizable monomers and the resulting polymer composition, said process comprising contacting an addition polymerizable monomer or mixture of monomers in a reactor or reactor zone with a composition comprising at least one polymerization catalyst and a cocatalyst under polymerization conditions, characterized in that at least a portion of said polymerization is conducted in the presence of a multi-centered shuttling agent thereby causing the composition to have a bimodal molecular weight distribution. | 11-06-2008 |
20080277137 | Distannoxane Catalysts for Silane Crosslinking and Condensation Reactions - A fabricated article (e.g., jacketed or insulated wire or cable) is prepared by a process comprising the steps of: applying a coating of a moisture-curable composition onto a wire or cable; and reacting the moisture-curable composition with water, wherein the moisture-curable composition comprises at least one resin having hydrolysable reactive silane groups and a tin catalyst characterized by the tin having a +4 oxidation state and a bis(alkoxide) ligand. The product of the process includes a wire or cable comprising a jacket, wherein the jacket comprises at least one poly olefin resin having hydrolysable reactive silane groups and a tin catalyst, the tin catalyst having a bis(alkoxide) ligand and characterized by the tin having a +4 oxidation state. The product of the process also includes a wire or cable comprising a jacket wherein the jacket comprises (i) the reaction product of at least one polyolefin resin having hydrolysable reactive silane groups and water, and (ii) at least one tin catalyst, the tin catalyst having a bis(alkoxide) ligand and characterized by the tin having a +4 oxidation state. | 11-13-2008 |
20090163667 | CATALYTIC OLEFIN BLOCK COPOLYMERS VIA POLYMERIZABLE SHUTTLING AGENT - A polymerization process and the resulting polymer composition, said process comprising polymerizing one or more addition polymerizable monomers and a polymerizable shuttling agent in the presence of at least one addition polymerization catalyst comprising a metal compound or complex and a cocatalyst under conditions characterized by the formation of a branched polymer, preferably comprising pseudo-block molecular architecture. | 06-25-2009 |
20090186985 | Functionalized elastomer compositions - The present invention relates to olefinic compositions comprising a functionalized branched olefin copolymer containing functionalized sidechains derived from olefin and at least one chain end nucleophilic heteroatom containing functional group with at least one protic hydrogen, optionally with one or more copolymerizable monomers, the copolymer characterized by having A) a T | 07-23-2009 |
20100069574 | ETHYLENE/ALPHA-OLEFINS BLOCK INTERPOLYMERS - Embodiments of the invention provide a class of ethylene/α-olefin block interpolymers. The ethylene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 03-18-2010 |
20100197540 | VISCOSITY INDEX IMPROVER FOR LUBRICANT COMPOSITIONS - A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/α-olefin interpolymer. The ethylene/α-olefin interpolymer has at least a hard segment and at least a soft segment. The soft segment contains a higher amount of comonomers than the hard segment. The hard segment has low crystallinity. The copolymer has a number of unique characteristics disclosed herein. Such copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc. | 08-05-2010 |
20100197541 | VISCOSITY INDEX IMPROVER FOR LUBRICANT COMPOSITIONS - A lubricant composition comprises a base oil and a viscosity modifier including an ethylene/α-olefin interpolymer. The ethylene/α-olefin interpolymer is a block copolymer having at least a hard block and at least a soft block. The soft block comprises a higher amount of comonomers than the hard block. The block copolymer has a number of unique characteristics disclosed here. Such block copolymers offer the possibility of improved low temperature performance and flexibility in formulating motor oil, gear lubricants and greases, etc. | 08-05-2010 |
20100197864 | CATALYTIC OLEFIN BLOCK COPOLYMERS WITH CONTROLLED BLOCK SEQUENCE DISTRIBUTION AND AT LEAST ONE LOW CRYSTALLINITY HARD BLOCK - The invention is related to catalytic olefin block copolymers with a controlled block sequence distribution and at least one low crystallinity hard block. The block copolymer has a number of unique characteristics disclosed here. | 08-05-2010 |
20100197880 | ETHYLENE/a- OLEFIN INTERPOLYMERS CONTAINING LOW CRYSTALI.INITY HARD BLOCKS - The invention is related to an ethylene/α-olefin interpolymer having at least a hard segment and at least a soft segment. The soft segment contains a higher amount of comonomers than the hard segment. The hard segment has low crystallinity. The copolymer has a number of unique characteristics disclosed herein.ethylene/α-olefin interpolymers containing low crystallinity hard blocks | 08-05-2010 |
20100227990 | CATALYSTS, PROCESSES FOR MAKING CATALYSTS, PROCESSES FOR MAKING POLYOLEFIN COMPOSITIONS, AND POLYOLEFIN COMPOSITIONS - The present invention relates to compositions and processes of making catalysts and polyolefins. More particularly, the invention relates to snap shut catalysts, processes for making the catalysts, processes for making polyolefins using the catalysts and the polyolefins resulting therefrom. | 09-09-2010 |
20100298515 | ETHYLENE/ALPHA-OLEFIN BLOCK COPOLYMERS - Embodiments of the invention provide a class of ethylene/α-olefin block interpolymers. The ethylene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 11-25-2010 |
20110015354 | PROPYLENE/ALPHA-OLEFIN BLOCK INTERPOLYMERS - Embodiments of the invention provide a class of mesophase separated propylene/α-olefin block interpolymers with controlled block sequences. The propylene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 01-20-2011 |
20110015363 | PROPYLENE/A-OLEFIN BLOCK INTERPOLYMERS - Embodiments of the invention provide a class of propylene/α-olefin block interpolymers. The propylene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 01-20-2011 |
20110032621 | ETHYLENE/ALPHA-OLEFIN BLOCK INTERPOLYMERS - Embodiments of the invention provide a class of mesophase separated ethylene/α-olefin block interpolymers with controlled block sequences. The ethylene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 02-10-2011 |
20110054121 | BUTENE/ALPHA-OLEFIN BLOCK INTERPOLYMERS - Embodiments of the invention provide a class of butene/α-olefin block interpolymers. The butene/α-olefin inter-polymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 03-03-2011 |
20110060103 | BUTENE/A-OLEFIN BLOCK INTERPOLYMERS - Embodiments of the invention provide a class of mesophase separated butene/α-olefin block interpolymers with controlled block sequences. The butene/α-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, M | 03-10-2011 |
20110086963 | Processes to Control Fouling and Improve Compositions - Improved reaction processes comprise reacting a mixture to form a product comprising a metal alkyl, metal oxide, or mixture thereof and then passing said product to a post-reactor heat exchanger. The improvement comprises one or more of the following: (1) reacting said metal alkyl compound with an acid to produce a soluble metal ester; or (2) adding an ionic surfactant; or (3) adding a mixture comprising an antioxidant to the product under conditions sufficient to avoid formation of significant amounts of insoluble metal or metal compounds derived from said metal alkyl compound; or (4) purging said post-reactor heat exchanger with an inert gas under conditions to remove metal oxide from the post-reactor heat exchanger. | 04-14-2011 |
20110092651 | Catalytic Olefin Block Copolymers Via Polymerizable Shuttling Agent - A polymerization process and the resulting polymer composition, said process comprising polymerizing one or more addition polymerizable monomers and a polymerizable shuttling agent in the presence of at least one addition polymerization catalyst comprising a metal compound or complex and a cocatalyst under conditions characterized by the formation of a branched polymer, preferably comprising pseudo-block molecular architecture. | 04-21-2011 |
20110207903 | PROCESS FOR POLYMERIZING AN OLEFIN MONOMER AND CATALYST THEREFOR - The present invention generally relates to a process that polymerizes an olefin monomer, and a precatalyst and catalyst useful in such process. | 08-25-2011 |
20110230108 | CATALYST COMPOSITION COMPRISING SHUTTLING AGENT FOR HIGHER OLEFIN MULTI-BLOCK COPOLYMER FORMATION - A process for preparing polymers, especially multi-block copolymer containing therein two or more segments or blocks differing in chemical or physical properties, by contacting propylene, 4-methyl-1-pentene, or other C | 09-22-2011 |
20120231287 | Interpolymers Suitable for Multilayer Films - The present invention relates to compositions and processes of making and using interpolymers having a controlled molecular weight distribution. Multilayer films and film layers derived from novel ethylene/α-olefin interpolymers are also disclosed. | 09-13-2012 |
20130068470 | OIL RECOVERY - Embodiments of the present disclosure include performing one or more oil recovery cycles that recovers oil from an oil containing reservoir. The one or more oil recovery cycles can include providing a flow of supercritical carbon dioxide to the oil containing reservoir, injecting a flow of a surfactant to the flow of supercritical carbon dioxide, where the supercritical carbon dioxide and the surfactant form a mixture, forming an emulsion of the mixture in water within the oil containing reservoir to control mobility of the supercritical carbon dioxide in the oil containing reservoir, reducing the flow of the surfactant to a reduced flow while maintaining the flow of the supercritical carbon dioxide to the oil containing reservoir, and recovering the oil displaced from the oil containing reservoir. | 03-21-2013 |
20130137840 | Processes of Controlling Molecular Weight Distribution in Ethylene/Alpha-Olefin Compositions - The present invention relates to compositions and processes of making ethylene/α-olefins. More particularly, the invention relates to processes of producing ethylene/α-olefin compositions having a controlled molecular weight distribution. The molecular weight distribution is controlled, for example, by controlling the relative monomer concentrations during contact with a pre-catalyst and/or using a catalyst comprising a catalytic amount of a molecule having the structure: | 05-30-2013 |
20130319725 | Distannoxane Catalysts for Silane Crosslinking and Condensation Reactions - A fabricated article (e.g., jacketed or insulated wire or cable) is prepared by a process comprising the steps of: applying a coating of a moisture-curable composition onto a wire or cable; and reacting the moisture-curable composition with water, wherein the moisture-curable composition comprises at least one resin having hydrolysable reactive silane groups and a tin catalyst characterized by the tin having a +4 oxidation state and a bis(alkoxide) ligand. The product of the process includes a wire or cable comprising a jacket, wherein the jacket comprises at least one poly olefin resin having hydrolysable reactive silane groups and a tin catalyst, the tin catalyst having a bis(alkoxide) ligand and characterized by the tin having a +4 oxidation state. The product of the process also includes a wire or cable comprising a jacket wherein the jacket comprises (i) the reaction product of at least one polyolefin resin having hydrolysable reactive silane groups and water, and (ii) at least one tin catalyst, the tin catalyst having a bis(alkoxide) ligand and characterized by the tin having a +4 oxidation state. | 12-05-2013 |
20140094537 | AQUEOUS POUR POINT DEPRESSANT DISPERSION COMPOSITION - The present invention relates to an aqueous pour point depressant dispersion composition comprising a thermoplastic polymer, preferably ethylene vinyl acetate (EVA); a dispersing agent; water; optionally an aqueous freezing point depressant; and optionally a stabilizing agent wherein the volume average particle size of the dispersed thermoplastic polymer is equal to or less than 1 micrometers and a method to make and use said composition. | 04-03-2014 |
20140206583 | WELLBORE SERVICING FLUID HAVING HYDROPHOBICALLY MODIFIED POLYMERS - Embodiments of the present disclosure include a wellbore servicing fluid that includes a diluent, a hydrophobically modified polymer, and a base. The base provides the wellbore servicing fluid with a pH of greater than 10. The presence of the base in the wellbore servicing fluid helps to minimize changes in the viscosity of the wellbore servicing fluid when a deposit, or a kick, of salt is encountered during the drilling operation. | 07-24-2014 |
20140345867 | CEMENTING COMPOSITION COMPRISING ANIONICALLY- AND HYDROPHOBICALLY-MODIFIED CELLULOSE ETHERS AND ITS USE - Disclosed is a composition and a method for cementing a casing in a borehole of a well using an aqueous cementing composition comprising (a) water, (b) a cementing composition comprising (i) a hydraulic cement, (ii) an anionically- and hydrophobically-modified polymer, (iii) a dispersant, and optionally (iv) one or more other additives conventionally added to aqueous cementing compositions useful in cementing casings in the borehole of wells. Preferably the anionically- and hydrophobically-modified hydroxyethyl cellulose has an ethylene oxide molar substitution of from 0.5 to 3.5, a hydrophobe degree of substitution of from 0.001 to 0.025, an anionic degree of substitution of from 0.001 to 1, and a weight-average molecular weight of from 100,000 to 4,000,000 Daltons and the dispersant is sulfonated polymer, melamine formaldehyde condensate, a naphthalene formaldehyde condensate, a branched or non-branched polycarboxylate polymer. Preferably, the aqueous cementing composition is pumped downwardly into said casing, pumping upwardly into the annulus surrounding said casing until said aqueous composition fills that portion of the annular space desired to be sealed, and then maintaining said aqueous cementing composition in place until the cement sets. | 11-27-2014 |