Non-metal Material Is Organic Nitrogen-containing Compound Patents (Class 526/141)
  • Patent number: 7312284
    Abstract: A process for producing a polar olefin copolymer comprises copolymerizing a non-polar olefin and a polar olefin in the presence of a transition metal compound selected from Groups 4, 5, 6 and 11 of the periodic table, which is represented by the following formula (IV): wherein M? is a transition metal atom selected from Groups 4, 5, 6 and 11 of the periodic table, m is an integer of 1 to 6, A is —O—, —Si—, —Se—, —N(R6)—, n is a number satisfying a valence of M?, R1 to R4 and R6 are each a hydrogen atom, a halogen atom, a hydrocarbon group and the like, and X is a halogen atom, an oxygen atom, a hydrocarbon group and the like, and at least one compound (B) selected from the group consisting of an organometallic compound (B-1), an organoaluminum oxy-compound (B-2) and an ionic ionizing compound (B-3). Therefore, the process is capable of obtaining a polar olefin copolymer having excellent properties under mild polymerization conditions.
    Type: Grant
    Filed: October 20, 2005
    Date of Patent: December 25, 2007
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yoshihisa Inoue, Shigekazu Matsui, Yasuhiko Suzuki, Yasunori Yoshida, Yukihiro Takagi, Terunori Fujita, Tomoaki Matsugi, Takashi Nakano
  • Patent number: 7307130
    Abstract: The present invention relates to a catalyst composition and a method for making the catalyst composition of a polymerization catalyst and a static charge modifier. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(s). In particular, the polymerization catalyst system is supported on a carrier. More particularly, the polymerization catalyst comprises a bulky ligand metallocene-type catalyst system.
    Type: Grant
    Filed: March 16, 2005
    Date of Patent: December 11, 2007
    Assignee: Univation Technologies, LLC
    Inventors: Brant Patrick, Michael Elroy Muhle, Matt Kuchta
  • Patent number: 7285607
    Abstract: This invention relates to a process for producing a polymeric product by the polymerisation of at least one olefinic compound in the form of an olefin or a compound including an olefinic moiety by contacting the at least one olefinic compound with a polymerisation catalyst. The catalyst comprises the combination of a source of a Group IV to VI transition metal; and a ligating compound of the formula (R1)mX1(Y)X2(R2)n. The process is characterised therein that when R1 and R2 are independently a hydrocarbyl group or a heterohydrocarbyl group which contains at least one non-polar substituent, the olefinic compound is contacted with the polymerisation catalyst at a reaction temperature from and above 70° C.; and where R1 and R2 are independently a hydrocarbyl group or a heterohydrocarbyl group which contains no substituent, the olefinic compound is contacted with the polymerisation catalyst at a reaction temperature from and above 90° C.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: October 23, 2007
    Assignee: Sasol, Chemical Industries, Limited
    Inventors: Kevin Blann, Deon De Wet-Roos, Dawid Johannes Joubert, Esna Killian, John Thomas Dixon, Nonhlanhla Jillian Phelembe, Aletta Du Toit
  • Patent number: 7238756
    Abstract: Methods of controlling the flow index and/or molecular weight split of a polymer composition are disclosed. The method of producing a polymer composition in one embodiment comprises incorporating a high molecular weight polymer into a low molecular weight polymer to form the polymer composition in a single polymerization reactor in the presence of polymerizable monomers, a bimetallic catalyst composition and at least one control agent; wherein the control agent is added in an amount sufficient to control the level of incorporation of the high molecular weight polymer, the level of low molecular weight polymer, or both. Examples of control agents include alcohols, ethers, amines and oxygen.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: July 3, 2007
    Assignee: Univation Technologies, LLC
    Inventors: Fred D. Ehrman, Pradeep P. Shirodkar, Mark Bradley Davis, Daniel P. Zilker, Jr., Porter C. Shannon
  • Patent number: 7238758
    Abstract: The invention has an object to provide a catalyst for polymerizing or copolymerizing an ?-olefin, catalyst constituent thereof, and method of polymerizing ?-olefins with the catalyst, for production of ?-olefin polymers or copolymers with high hydrogen response, high polymarization reaction rate, high stereoregularity and excellent melt fluidity. The invention discloses a catalyst constituent of the catalyst for polymerizing or copolymerizing an ?-olefin, represented by Formula 37 or 38: Si(OR1)3(NR2R3)Formula 37 (where in Formula 37, R1 is a hydrocarbon group with 1 to 6 carbon atoms; R2 is a hydrocarbon group with 1 to 12 carbon atoms or hydrogen; and R3 is a hydrocarbon group with 1 to 12 carbon atoms) RNSi(OR1)3Formula 38 (where in Formula 38, R1 is a hydrocarbon group with 1 to 6 carbon atoms; and RN is a cyclicl amino group).
    Type: Grant
    Filed: August 19, 2003
    Date of Patent: July 3, 2007
    Assignee: Ube Industries, Ltd.
    Inventors: Motozo Yoshikiyo, Toshifumi Fukunaga, Hiroshi Sato, Toshikazu Machida, Hiroyuki Ikeuchi, Takefumi Yano, Yasuhiro Tanaka
  • Patent number: 7232871
    Abstract: Ethylene propylene copolymers, substantially free of diene, are described. The copolymers will have a uniform distribution of both tacticity and comonomer between copolymer chains. Further, the copolymers will exhibit a statistically insignificant intramolecular difference of tacticity. The copolymers are made in the presence of a metallocene catalyst.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: June 19, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sudhin Datta, Bruce A. Harrington, Weiguo Hu, Periagaram S. Ravishankar, George Rodriguez
  • Patent number: 7220695
    Abstract: This invention relates to supported activators comprising the product of the combination of an ion-exchange layered silicate, an organoaluminum compound, and a heterocyclic compound, which may be substituted or unsubstituted. This invention further relates to catalyst systems comprising catalyst compounds and such activators, as well as processes to polymerize unsaturated monomers using the supported activators. For the purposes of this patent specification and the claims thereto, the term “activator” is used interchangeably with the term “co-catalyst”, the term “catalyst” refers to a metal compound that when combined with an activator polymerizes olefins, and the term “catalyst system” refers to the combination of a catalyst and an activator with or without a support. The terms “support” or “carrier”, for purposes of this patent specification, are used interchangeably and are any ion-exchange layered silicates.
    Type: Grant
    Filed: January 7, 2004
    Date of Patent: May 22, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gary L. Casty, Smita Kacker, Jack W. Johnson, Murielle V. Scott, Steven L. Hegwood, Robert R. Simpson, Robert P. Reynolds
  • Patent number: 7214638
    Abstract: Catalyst compositions that are highly tolerant of catalyst poisons for use in addition polymerizations comprising a catalytic derivative of a Group 4 metal complex, a cocatalyst, and a Group 13 metal amide compound.
    Type: Grant
    Filed: November 17, 2003
    Date of Patent: May 8, 2007
    Assignee: Dow Global Technologies Inc.
    Inventors: Duane R. Romer, James C. Stevens, Robert K. Rosen, Francis J. Timmers, Hendrik E. Tuinstra
  • Patent number: 7208559
    Abstract: An ethylene-based polymer which is an ethylene/C4 to C10 ?-olefin copolymer and satisfies the following requirements [k1] to [k3]: [k1] melt flow rate (MFR) under a loading of 2.16 kg at 190° C. is in the range of 1.0 to 50 g/10 minutes; [k2] LNR defined as a scale of neck-in upon film molding is in the range of 0.6 to 1.4; and [k3] take-up speed at break [DS (m/min)] at 160° C. and melt flow rate (MFR) satisfy the following relationship (Eq-1): 12×MFR0.577?DS?165×MFR0.577 (Eq-1), and a thermoplastic resin composition containing the ethylene-based polymer, provide a molded product, preferably a film, excellent in moldability and mechanical strength.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: April 24, 2007
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yasuo Satoh, Mamoru Takahashi, Hideki Bando, Yoshiho Sonobe, Yasushi Nakayama
  • Patent number: 7205363
    Abstract: The invention relates to a process for the polymerization of olefins using an antistatic agent. In particular, the invention relates to a polymerization process to produce propylene polymers using a supported metallocene catalyst system and an antistatic agent. The antistatic agent may also be contacted with a scavenger prior to polymerization.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: April 17, 2007
    Assignee: Exxon Mobil Chemical Patents Inc.
    Inventors: Randell Wayne Dickey, Jennifer Harting Ward, Thomas Craig Wilson
  • Patent number: 7166682
    Abstract: A process for the preparation of an olefin polymerisation catalyst comprising: a) reacting an aluminoxane and a Lewis base in an optionally halogenated hydrocarbon solvent to form a particulate suspension; b) reacting said suspension with a metallocene complex in an optionally halogenated hydrocarbon solvent; and optionally c) isolating the olefin polymerisation catalyst.
    Type: Grant
    Filed: September 4, 2003
    Date of Patent: January 23, 2007
    Assignee: Borealis Technology Oy
    Inventors: Jarmo Lindroos, Siw Bodil Fredriksen, Pål Christian Bentzrød
  • Patent number: 7157399
    Abstract: In one embodiment the invention is a polymerizable composition comprising a) an organoborane amine complex; b) one or more of monomers, oligomers or polymers having olefinic unsaturation which is capable of polymerization by free radical polymerization; c) one or more compounds, oligomers or prepolymers having a siloxane backbone and reactive moieties capable of polymerization; and d) a catalyst for the polymerization of the one or more compounds, oligomers or prepolymers having a siloxane backbone and reactive moieties capable of polymerization. This composition may further comprise a compound which causes the organoborane amine complex to disassociate.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: January 2, 2007
    Assignee: Dow Global Technologies Inc.
    Inventors: Mark F. Sonnenschein, Steven P. Webb, Benjamin L. Wendt, Daniel R. Harrington
  • Patent number: 7148302
    Abstract: This invention is based upon the discovery that a catalyst system which is comprised of (a) palladium or a palladium compound and (b) a fluorinated alcohol is effective for polymerizing norbornene-functional monomers into polynorbornene-functional polymers. It has been further discovered that this catalyst system is more effective in polymerizing certain norbornene-functional monomers that are difficult to polymerize, such as norbornene ester monomers, than prior art catalyst systems. The activity of the catalyst systems of this invention can be further improved with respect to polymerizing some monomers by including a Lewis acid and/or a ligand, such as a phosphine or a carbene, in the system. In any case, the catalyst systems of this invention offer the advantage of being soluble in a wide variety of solvents, relatively inexpensive, and capable of polymerizing many norbornene-functional monomers that are difficult to polymerize with conventional catalyst systems.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: December 12, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: John-Henry Lipian
  • Patent number: 7122611
    Abstract: This invention is based upon the discovery that a catalyst system which is comprised of (a) palladium or a palladium compound and (b) a fluorinated alcohol is effective for polymerizing norbornene-functional monomers into polynorbornene-functional polymers. It has been further discovered that this catalyst system is more effective in polymerizing certain norbornene-functional monomers that are difficult to polymerize, such as norbornene ester monomers, than prior art catalyst systems. The activity of the catalyst systems of this invention can be further improved with respect to polymerizing some monomers by including a Lewis acid and/or a ligand, such as a phosphine or a carbene, in the system. In any case, the catalyst systems of this invention offer the advantage of being soluble in a wide variety of solvents, relatively inexpensive, and capable of polymerizing many norbornene-functional monomers that are difficult to polymerize with conventional catalyst systems.
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: October 17, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: John-Henry Lipian
  • Patent number: 7122497
    Abstract: A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises a cocatalyst and a supported transition metal prepared from a halogen-containing Group 4–6 transition metal compound and an organoaluminum-siloxane containing mixture. The latter mixture, which is prepared from an organoaluminum compound and an organomagnesium-siloxane reaction product, incorporates a chelating ligand. The invention includes a method for making the catalyst system and a process for polymerizing olefins using the catalyst system. The process is convenient and avoids expensive catalyst components used in known olefin polymerization processes.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: October 17, 2006
    Assignee: Equistar Chemicals, LP
    Inventors: Sandor Nagy, Barbara M. Tsuie
  • Patent number: 7101940
    Abstract: The invention relates to a chemical compound of formula (I), wherein M1 represents an element selected from main groups II, III or IV of the periodic table of elements; x is equal to 1, 2, 3 or 4; y is equal to 2, 3 or 4, and; A represents a cation of main group V of the periodic table of elements; R1 is the same or different and represents a branched or unbranched linear or cyclic C1–C40 group that contains carbon; R2 is the same or different and represents a branched or unbranched linear or cyclic C1–C40 group that contains carbon; R3 represents a branched or unbranched linear or cyclic C1–C40 group that contains carbon, and; R4 represents a hydrogen atom; whereby R2 and R3 are always different from one another
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: September 5, 2006
    Assignee: Basell Polyolefine GmbH
    Inventors: Jörg Schottek, Heike Gregorius, David Fischer, Iris Kuellmer
  • Patent number: 7081504
    Abstract: This invention is based upon the unexpected discovery that alkylated diphenylamines can be used in conjunction with nickel based catalyst systems which contain (a) an organonickel compound, (b) an organoaluminum compound, and (c) a fluorine containing compound to produce cis-1,4-polybutadiene having reduced molecular weight and an increased level of branching. This results in the cis-1,4-polybutadiene exhibiting good processability without sacrificing cold flow characteristics. Additionally, the alkylated diphenylamine which remains in the rubber acts in a manner which provides it with antioxidant protection. In other words, the use of alkylated diphenylamines accomplishes the three major objectives that are realized by employing para-styrenated diphenylamines (reduced molecular weight, regulated polymer macrostructure through branching and antidegradant protection).
    Type: Grant
    Filed: August 30, 2004
    Date of Patent: July 25, 2006
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michael Joseph Rachita, Scott Edwards Johnson
  • Patent number: 7081505
    Abstract: An organometallic composition which can be used as activating component in a metallocene catalyst for the (co)polymerization of ?-olefins, comprises: (A) a fluorinated di-unsaturated cyclic compound, having a relatively acid hydrogen atom, (B) an organometallic compound sufficiently basic to react with the acid hydrogen of the above compound (A), and (C) a polar aprotic organic compound, not containing metallic atoms, having a dielectric constant, in the pure state, equal to or greater than 2, and a weak coordinating capacity. Said composition allows a metallocene catalytic system of the ionic type to be obtained, with a high activity in the (co)polymerization of olefins and a reduced content of metallic residue in the polymeric product thus obtained.
    Type: Grant
    Filed: July 10, 2002
    Date of Patent: July 25, 2006
    Assignee: Polimeri Europa S.p.A.
    Inventors: Anna Sommazzi, Francesco Masi, Giampietro Borsotti, Roberto Santi, Fausto Calderazzo, Guido Pampaloni, Vincenzo Passarelli
  • Patent number: 7078469
    Abstract: Polymeric supports, which have been treated with a halosulfonic acid, increase the activity of single-site catalysts used with aluminoxane co-catalysts, resulting in improved ethylene polymerization. The present invention seeks to provide polymeric catalyst supports which have been treated with halosulfonic acid for improved activity.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: July 18, 2006
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Peter Phung Minh Hoang, Xiaoliang Gao, Jessie Anne Leighton, Matthew Gerald Kowalchuk
  • Patent number: 7053159
    Abstract: A process for producing a polar olefin copolymer comprises copolymerizing a non-polar olefin and a polar olefin in the presence of a transition metal compound selected from Groups 4, 5, 6 and 11 of the periodic table, which is represented by the following formula (IV): wherein M? is a transition metal atom selected from Groups 4, 5, 6 and 11 of the periodic table, m is an integer of 1 to 6, A is —O—, —Si—, —Se—, —N(R6)—, n is a number satisfying a valence of M?, R1 to R4 and R6 are each a hydrogen atom, a halogen atom, a hydrocarbon group and the like, and X is a halogen atom, an oxygen atom, a hydrocarbon group and the like, and at least one compound (B) selected from the group consisting of an organometallic compound (B-1), an organoaluminum oxy-compound (B-2) and an ionic ionizing compound (B-3). Therefore, the process is capable of obtaining a polar olefin copolymer having excellent properties under mild polymerization conditions.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: May 30, 2006
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Yoshihisa Inoue, Shigekazu Matsui, Yasuhiko Suzuki, Yasunori Yoshida, Yukihiro Takagi, Terunori Fujita, Tomoaki Matsugi, Takashi Nakano
  • Patent number: 7022792
    Abstract: This invention relates to the polymerization of vinylically-unsaturated monomers in the presence of a chain transfer catalysts where the polymerization process is initiated with hydrogen gas or a hydrogen atom donor rather than conventional free radical initiators. This invention further relates to an improved process for the polymerization of vinylically-unsaturated monomers in the presence of a chain transfer catalysts where the polymerization process is initiated with hydrogen gas.
    Type: Grant
    Filed: March 16, 2004
    Date of Patent: April 4, 2006
    Assignee: E. I. duPont de Nemours and Company
    Inventors: Alexei A. Gridnev, Steven Dale Ittel
  • Patent number: 7001961
    Abstract: The present invention relates to a catalyst composition and a method for making the catalyst composition which comprises a polymerization catalyst and at least one gelling agent. The invention is also directed to the use of the catalyst composition in the polymerization of olefin(s). In particular, the polymerization catalyst system is supported on a carrier.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: February 21, 2006
    Assignee: Univation Technologies, LLC
    Inventors: Agapios Kyriacos Agapiou, Chi-I Kuo, David M. Glowczwski, Steven K. Ackerman
  • Patent number: 6958378
    Abstract: The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and co-polymers of ethylene in the presence of (a) a solid titanium catalyst produced by preparing a magnesium solution by contact-reacting a halogenated magnesium compound with an alcohol; reacting thereto an ester compound having at least one hydroxyl group and a silicon compound having at least one alkoxy group; and adding a mixture of a titanium compound and a silicon compound; (b) organometallic compounds of Group II or III of the Periodic Table; and (c) a cyclic nitrogen compound. The catalyst for homo- and co-polymerization of ethylene, produced according to the present invention, exhibits high activity, and the polymers produced by the method of the present invention by using said catalyst have the advantages of exhibiting high bulk densities and narrow molecular weight distributions.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: October 25, 2005
    Assignee: Samsung Atofina Co., Ltd.
    Inventors: Chun-Byung Yang, Sang-Yull Kim, Yong-Bok Lee, Weon Lee
  • Patent number: 6953829
    Abstract: A catalyst system comprising at least one metallocene, at least one cocatalyst, at least one support material and, if desired, further organometallic compounds is described. The catalyst system can advantageously be used for the polymerization of olefins and displays a high catalyst activity and gives a good polymer morphology without it being necessary to use aluminoxanes such as methylaluminoxane (MAO), which usually has to be used in high excess, as cocatalyst.
    Type: Grant
    Filed: December 13, 2000
    Date of Patent: October 11, 2005
    Assignee: Basell Polyolefine GmbH
    Inventors: Roland Kratzer, Cornelia Fritze, Jörg Schottek
  • Patent number: 6951911
    Abstract: A crosslinked polymer (A) which comprises, as essential structural units, units derived from (a) one or more vinyl monomers selected from the group consisting of water-soluble vinyl monomers and/or vinyl monomers which become water-soluble upon hydrolysis and units derived from (b) a crosslinking agent and which satisfies the following requirements: (1): (X)?25 g/g, (2): (Y)?15 g/g, and (3): (Y)??0.54 (X)+41. It has exceedingly high water retentivity and exceedingly high absorbing power under load. When applied to an absorbent structure and an absorbent article, the polymer has excellent absorbing performance. In the relationships, (X) is the amount of physiological saline retained through 1-hour absorption and (Y) is the amount of physiological saline absorbed through 1-hour standing under a load of 60 g/cm2.
    Type: Grant
    Filed: October 15, 2002
    Date of Patent: October 4, 2005
    Assignee: Sanyo Chemical Industries, Ltd.
    Inventors: Daisuke Tagawa, Tatsuya Asai, Yoshiyuki Iwasaki, Yoshihisa Ota, Keiji Tanaka
  • Patent number: 6951831
    Abstract: A catalyst composition for use in dimerizing, co-dimerizing or oligomerizing olefins comprises: at least one zero-valent nickel complex; at least one acid with formula H+X? in which X? represents an anion; and at least one ionic liquid with general formula Q+ A? in which A? is an anion identical to or different from X?. The composition can also comprise a nitrogen-containing ligand. It can be used in dimerizing, co-dimerizing, oligomerizing and in polymerizing olefins.
    Type: Grant
    Filed: February 3, 2003
    Date of Patent: October 4, 2005
    Assignee: Institut Francais du Petrole
    Inventors: Vincent Lecocq, Hélène Olivier-Bourbigou
  • Patent number: 6903169
    Abstract: A process for polymerizing unsaturated monomers is disclosed. The process comprises polymerizing, in the presence of a late transition metal catalyst (LTMC), a variety of unsaturated monomers which are traditionally, some of which are exclusively, made by free radical polymerizations. The LTMC polymerization provides the polymer with improved properties such as no free radical residue and narrow molecular weight distribution.
    Type: Grant
    Filed: December 30, 2003
    Date of Patent: June 7, 2005
    Assignee: Equistar Chemicals, LP
    Inventors: Jia-Chu Liu, Shao-Hua Guo
  • Patent number: 6887817
    Abstract: An olefin polymerization catalyst is described which includes: (A) a solid catalyst component being prepared by copulverizing a magnesium compound, an aluminum compound, an electron donor and a titanium compound, and (B) an organoaluminum compound. The present invention is also directed to a process for preparing polyolefins using the aforesaid catalyst system to polymerize olefins.
    Type: Grant
    Filed: August 27, 2003
    Date of Patent: May 3, 2005
    Assignee: Formosa Plastics Corporation, U.S.A.
    Inventors: Bing Lu, Honglan Lu, Chih-Jian Chen
  • Patent number: 6846769
    Abstract: The present invention relates to vanadium-imido-phosphoraneiminato compounds, to compositions containing vanadium-imido-phosphoraneiminato compounds, which compositions are suitable especially as catalysts for the polymerization of olefins, especially for ethylene/propylene or ethylene/?-olefin copolymerization and the terpolymerization of those monomers with dienes.
    Type: Grant
    Filed: August 9, 2002
    Date of Patent: January 25, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Arndt-Rosenau, Martin Hoch, Jörg Sundermeyer, Jennifer Kipke, Martin Lemke
  • Patent number: 6844402
    Abstract: A process for making olefin-acrylic copolymers is disclosed. The process comprises polymerizing an olefin and an acrylic monomer in the presence of an activator and a Group 8-10 late transition metal complex. The late transition metal catalyst contains an isoindoline ligand.
    Type: Grant
    Filed: December 11, 2003
    Date of Patent: January 18, 2005
    Assignee: Equistar Chemicals, LP
    Inventors: Jia-Chu Liu, Mark P. Mack, Shao-Hua Guo
  • Patent number: 6841500
    Abstract: Catalyst systems useful for olefin polymerization are disclosed. The catalysts include a bimetallic complex that incorporates two linked indenoindolyl groups, each of which is pi-bonded through its cyclopentadienyl ring to one of the metals. Compared with conventional indenoindolyl complexes, the bimetallic complexes of the invention have enhanced ability to give polyolefins with desirably low melt indices. Certain bimetallic indenoindolyl complexes also provide a way to broaden polymer molecular weight distribution and thereby improve processability simply by regulating the amounts of comonomer and activator used in the polymerization.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: January 11, 2005
    Assignee: Equistar Chemicals, LP
    Inventors: Sandor Nagy, Barbara M. Tsuie, William J. Sartain
  • Patent number: 6841501
    Abstract: A catalyst system for the polymerization of olefins comprising the product obtained by contacting: (A) at least one transition metal organometallic compound, pyrrolidyl bis(?-cyclopentadienyl)methylzirconium being excluded, and (B) an organometallic compound obtained by contacting: a) a Lewis base having formula (I): ?wherein Ra, Rb, Rc and Rd, equal to or different from each other, are selected from the group consisting of hydrogen, halogen, linear or branched, saturated or unsaturated, C1-C10 alkyl, C6-C20 aryl, C7-C20 arylalkyl and C7-C20 alkylaryl groups; with b) a Lewis acid of formula (II) MtR13??(II) ?wherein Mt is a metal belonging to Group 13 of the Periodic Table of th Elements; R1, equal to or different from each other, are selected from the group consisting of halogen, halogenated C6-C20 aryl and halogenated C7-C20 alkylaryl groups; and (C) optionally an alkylating agent.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: January 11, 2005
    Assignee: Basell Poliolefine Italia S.p.A.
    Inventors: Luigi Resconi, Simona Guidotti
  • Patent number: 6828395
    Abstract: Methods of controlling rheological properties of polymer compositions comprising at least one high molecular weight polymer and one low molecular weight polymer are disclosed. The polymer compositions are produced by polymerizing monomers in a single reactor using a bimetallic catalyst composition. A control agent such as, for example, an alcohol, ether, oxygen or amine is added to the reactor to control the rheological properties of the reactor. The polymerization takes place in the presence of rheological-altering compounds such as alkanes and aluminum alkyls. The control agents are added in an amount sufficient to counter the influences of the rheological-altering compounds.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: December 7, 2004
    Assignee: Univation Technologies, LLC
    Inventors: Fred D. Ehrman, Pradeep P. Shirodkar, Robert Lynn Santana, Porter C. Shannon
  • Publication number: 20040242812
    Abstract: In one embodiment the invention is a polymerizable composition comprising a) an organoborane amine complex; b) one or more of monomers, oligomers or polymers having olefinic unsaturation which is capable of polymerization by free radical polymerization; c) one or more compounds, oligomers or prepolymers having a siloxane backbone and reactive moieties capable of polymerization; and d) a catalyst for the polymerization of the one or more compounds, oligomers or prepolymers having a siloxane backbone and reactive moieties capable of polymerization. This composition may further comprise a compound which causes the organoborane amine complex to disassociate.
    Type: Application
    Filed: June 9, 2004
    Publication date: December 2, 2004
    Inventors: Mark F. Sonnenschein, Steven P. Webb, Benjamin L. Wendt, Daniel R. Harrington
  • Patent number: 6825298
    Abstract: In one embodiment the invention is a polymerizable composition comprising a) an organoborane amine complex; b) one or more of monomers, oligomers or polymers having olefinic unsaturation which is capable of polymerization by free radical polymerization; c) one or more compounds, oligomers or prepolymers having a siloxane backbone and reactive moieties capable of polymerization; and d) a catalyst for the polymerization of the one or more compounds, oligomers or prepolymers having a siloxane backbone and reactive moieties capable of polymerization. This composition may further comprise a compound which causes the organoborane amine complex to disassociate.
    Type: Grant
    Filed: June 1, 2004
    Date of Patent: November 30, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Mark F. Sonnenschein, Steven P. Webb, Benjamin L. Wendt, Daniel R. Harrington
  • Patent number: 6812304
    Abstract: A process for preparing premixed supported boraaryl catalysts having improved shelf life is provided. The process comprises supporting an organometallic compound comprising a group 3-10 transition metal or lanthanide metal and at least one boraaryl ligand an inorganic support which has been chemically and thermally dehydroxylated to remove all hydroxyl from the surface of the support; contacting with an organoaluminum compound utilizing an incipient wetness procedure wherein 90 to 150 percent of the catalyst pore volume is filled with a hydrocarbon solution containing the organoaluminum and provide a molar ratio of aluminum to transition/lanthanide metal of 0.5:1 to 50:1; and recovering the premixed catalyst powder.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: November 2, 2004
    Assignee: Equistar Chemicals, LP
    Inventors: Craig C. Meverden, Michael W. Lynch
  • Patent number: 6812183
    Abstract: Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a triple-decker bimetallic complex. The complex includes two Group 3-10 transition metals and a delocalized dianionic ligand that is pi-bonded to each of the metals. The behavior of the catalysts can be modified by choice of each metal, by the choice of the dianionic ligand, or by choice of the ancillary ligands. The invention provides a new way to make a large variety of catalyst systems.
    Type: Grant
    Filed: April 23, 2003
    Date of Patent: November 2, 2004
    Assignee: Equistar Chemicals, LP
    Inventors: Sandor Nagy, Joel A. Mutchler
  • Patent number: 6794467
    Abstract: The invention discloses a process for the preparation of polymeric absorbents useful for gelling organic liquids. The process comprises mixing one or more monomers with a cross-linking agent, a free radical initiator, an optional solvent, optionally in the presence of a transition metal source and subjecting the mixture so obtained to a conventional polymerisation method. The polymer is removed, crushed to obtain polymer powder, washed with solvent and dried by conventional methods to remove unreacted monomers, followed by swelling in alcohols to obtain the desired product.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: September 21, 2004
    Assignee: Council of Scientific and Industrial Research
    Inventors: Ashish Kishor Lele, Shyni Varghese, Manohar Virupax Badiger, Raghunath Anant Mashelkar
  • Patent number: 6777512
    Abstract: In one embodiment the invention is a polymerizable composition comprising a) an organoborane amine complex; b) one or more of monomers, oligomers or polymers having olefinic unsaturation which is capable of polymerization by free radical polymerization; c) one or more compounds, oligomers or prepolymers having a siloxane backbone and reactive moieties capable of polymerization; and d) a catalyst for the polymerization of the one or more compounds, oligomers or prepolymers having a siloxane backbone and reactive moieties capable of polymerization. This composition may further comprise a compound which causes the organoborane amine complex to disassociate.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: August 17, 2004
    Assignee: Dow Global Technologies Inc.
    Inventors: Mark F. Sonnenschein, Steven P. Webb, Benjamin L. Wendt, Daniel R. Harrington
  • Patent number: 6737379
    Abstract: Provided are an aluminium-oxy compound obtained through reaction of an organoaluminium compound with water, which is soluble in hydrocarbon solvents and in which the amount of the organoaluminium compound remaining is at most 10% by weight; a carrier comprising the aluminium-oxy compound and an inorganic compound; and a catalyst component for olefin polymerization comprising the carrier and a transition metal compound. The catalyst component for olefin polymer production comprises the aluminium-oxy compound and gives polyolefins with good polymer morphology.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: May 18, 2004
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Mitsugu Kanzawa, Shuji Machida
  • Patent number: 6734269
    Abstract: The present invention relates to a process for the radical polymerization or copolymerization of ethylene under high pressure in the presence of at least one polymerization initiating-controlling compound capable of providing, by decomposition under the polymerization or copolymerization conditions: at least one initiating free radical (Z) which carries at least one site for initiating the (co)polymerization; and at least one stable free radical (SFR) which carries at least one site exhibiting the stable radical state and which is stable under the polymerization conditions, with, in total, as many initiating sites as sites exhibiting the stable radical state.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: May 11, 2004
    Assignee: Atofina
    Inventors: Michael Buback, Eric Minaux, Thierry Senninger, Jean-Marc Le Blevec
  • Patent number: 6693154
    Abstract: A catalyst system useful for polymerizing olefins is disclosed. It comprises an activator and an organometallic complex. The complex includes a Group 3-10 transition or lanthanide metal and a 1,3-bis(arylimino)isoindoline or 1,3-bis(heteroarylimino)isoindoline ligand. Activities of the Group 8-10 catalyst systems rival or exceed those of late transition metal bis(imines). The resulting polyolefins typically have high molecular weights, broad molecular weight distributions, and a high degree of crystallinity, which makes them valuable for film applications.
    Type: Grant
    Filed: September 6, 2001
    Date of Patent: February 17, 2004
    Assignee: Equistar Chemicals, LP
    Inventors: Jia-Chu Liu, Jonathan L. Schuchardt
  • Patent number: 6677423
    Abstract: Polyethylene is formed by contacting ethylene with a novel iron or cobalt complex of a selected 1,4,7-triaza-3-oxa-1,4,6-heptatriene or 2,5,8-triaza-1,8-nonadiene, optionally in the presence of a cocatalyst such as an alkylaluminum compound. The polymers formed as useful for molding and in films.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: January 13, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Lynda Kaye Johnson
  • Patent number: 6670433
    Abstract: Substituted cyclopentenes, such as alkyl cyclopentenes, are polymerized by selected &agr;-imine complexes of nickel and palladium. The polymers are useful as molding resins or elastomers. Also disclosed herein are novel catalysts for the polymerization of cyclopentenes to form novel higher melting homopolycyclopentenes.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: December 30, 2003
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Stephan James McLain, Elizabeth Forrester McCord, Alison Margaret Anne Bennett, Steven Dale Ittel, Karl Jeffrey Sweetman, Mark F. Teasley
  • Patent number: 6649713
    Abstract: The present invention relates to a process for preparation of polyolefin/inorganic component nanocomposite by in-situ polymerization, in which, a clay is first organically modified and then silica or titanium dioxide nanometer particles are incorporated into the layers of crystal sheets of the clay by sol-gel method. And a metallocene catalyst is then loaded on the above-mentioned material and a finished catalyst is obtained. The said catalyst is used for in-situ polymerization of ethylene or propylene, and polyolefin/clay nanocomposite is finally obtained. The process for preparation of the catalyst according to the present invention is simple, and the mechanical properties of the nanocomposite are high. For example, the Young's modulus and the tensile strength thereof are in the ranges of 700-2600 Mpa, and 20-55 MPa respectively.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: November 18, 2003
    Assignee: Changchun Institute of Applied Chemistry Chinese Academy of Science
    Inventors: Tao Tang, Liangming Wei, Baolong Huang
  • Publication number: 20030212219
    Abstract: A novel process for the polymerization of olefins is provided. The process involves contacting at least one olefin with a Ziegler-Natta type catalyst in the presence of a specified compound that results in the production of polymeric products having a narrower molecular weight distribution. Also provide is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, a Ziegler-Natta catalyst and a compound specified herein. Further provided are novel polyethylenes, and films and articles produced therefrom.
    Type: Application
    Filed: June 19, 2003
    Publication date: November 13, 2003
    Inventors: Randal Ray Ford, Richard Kingsley Stuart
  • Patent number: 6639028
    Abstract: A process for the gas-phase (co-)polymerization of olefins in a fluidized bed reactor using a chromium oxide catalyst. The polymerization is performed in the presence of a process aid additive.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: October 28, 2003
    Assignee: BP Chemicals Limited
    Inventors: David Heslop, Jean-Pierre Isnard, Myung-Je Shin
  • Patent number: 6630548
    Abstract: A gas-phase process for polymerizing an olefin is disclosed. The process involves feeding the catalyst into the reactor in a stream of gas that comprises at least 75 volume % of a noble gas in order to reduce static.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: October 7, 2003
    Assignee: Equistar Chemicals, LP
    Inventors: Kiran M. Gupte, Kevin Tolley, Joel A. Mutchler, Charles S. Holland
  • Patent number: 6630551
    Abstract: A catalyst which comprises a compound of a transition metal in Groups 8 to 10 of the Periodic Table having a nitrogenous tridentate ligand, a clay, clay minteral, or lamellar ion-exchanging compound, an organosilane compound, and organoaluminum compound, etc.; and a process for producing a polyolefin with the catalyst. The catalyst is highly active, does not adhere to reactor walls, and can give a polyolefin excellent in powder morphology. Consequently, a polyolefin (especially polyethylene) can be industrially advantageously produced.
    Type: Grant
    Filed: August 2, 2000
    Date of Patent: October 7, 2003
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Fumio Okuda, Haruhito Sato, Masahiko Kuramoto
  • Patent number: 6624263
    Abstract: A new polymerization process (atom transfer radical polymerization, or ATRP) based on a redox reaction between a transition metal (e.g., Cu(I)/Cu(II), provides “living” or controlled radical polymerization of styrene, (meth)acrylates, and other radically polymerizable monomers. Using various simple organic halides as model halogen atom transfer precursors (initiators) and transition metal complexes as a model halogen atom transfer promoters (catalysts), a “living” radical polymerization affords (co)polymers having the predetermined number average molecular weight by &Dgr;[M]/[I]0 (up to Mn>105) and a surprisingly narrow molecular weight distribution (Mw/Mn), as low as 1.15. The participation of free radical intermediates in ATRP is supported by end-group analysis and stereochemistry of the polymerization. In addition, polymers with various topologies (e.g.
    Type: Grant
    Filed: March 13, 2002
    Date of Patent: September 23, 2003
    Assignee: Carnegie Mellon University
    Inventors: Krzysztof Matyjaszewski, Jin-Shan Wang