Contains An Exterior Ethylenic Substituent Bonded To A Single Carbon Atom Of The Bridged Ring System Patents (Class 526/282)
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Publication number: 20030088037Abstract: A polymerization process comprises contacting one or more olefinic comonomers in the presence of at least a high molecular weight catalyst and at least a low molecular weight catalyst in a single reactor; and effectuating the polymerization of the olefinic comonomers in the reactor to obtain an olefin polymer. Preferably, both catalysts have the ability to incorporate a substantially similar amount of comonomers in the olefin polymer. The polymers produced by the process may have a relatively higher level of long chain branching while maintaining a relatively narrow molecular weight distribution, i.e., MWD less than about 6. These interpolymers may exhibit processability similar to or better than LDPE but have physical properties similar to metallocene catalyzed polymers.Type: ApplicationFiled: March 15, 2002Publication date: May 8, 2003Applicant: The Dow Chemical CompanyInventors: James C. Stevens, Daniel D. VanderLende
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Publication number: 20030082479Abstract: A copolymer of an acrylic monomer having at least one C6-20 alicyclic structure with a norbornene derivative or styrene monomer having a hexafluoroalcohol pendant is highly transparent to VUV radiation and resistant to plasma etching. A resist composition using the polymer as a base resin is sensitive to high-energy radiation below 200 nm, has excellent sensitivity, transparency and dry etching resistance, and is suited for lithographic microprocessing.Type: ApplicationFiled: June 25, 2002Publication date: May 1, 2003Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Jun Hatakeyama, Yuji Harada, Yoshio Kawai, Masaru Sasago, Masayuki Endo, Shinji Kishimura, Michitaka Ootani, Satoru Miyazawa, Kentaro Tsutsumi, Kazuhiko Maeda
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Patent number: 6552148Abstract: The present invention relates to a thermoplastic interpolymer product comprising an &agr;-olefin interpolymerized with at least one vinyl or vinylidene aromatic monomer and/or at least one hindered aliphatic or cycloaliphatic vinyl or vinylidene aromatic monomer and, in at least one aspect, is characterized as having substantially synergistic thermal properties. The invention also relates to a process for manufacturing the interpolymer product wherein the process employs two or more single site or metallocene catalyst systems in at least one reaction environment and wherein at least two of the catalyst systems have (a) different monomer incorporation capabilities or reactivities and (b) the same or, optionally, different monomer sequencing and/or tacticity characteristics.Type: GrantFiled: February 17, 2000Date of Patent: April 22, 2003Assignee: The Dow Chemical CompanyInventors: Yunwa W. Cheung, Martin J. Guest, Robert K. Rosen, Brian W. Kolthammer
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Patent number: 6552102Abstract: Described are chiral liquid crystalline polymer materials and polymerizable compounds used for preparing them. The polymer materials can serve as a carrier material or are coated onto a carrier material. Also described are methods of making such materials and using them to make pigment flakes used in paints, printing inks, spray paints, cosmetic products, colored plastics, optical elements and security applications.Type: GrantFiled: July 3, 2001Date of Patent: April 22, 2003Assignee: Merck Patent Gesellschaft mit beschränkter HaftungInventors: Eike Poetsch, Gerhard Pfaff, Matthias Kuntz, Stephan Derow, David Coates
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Patent number: 6545120Abstract: An alicyclic (meth)allyl ester monomer obtained by a specific production process. An alicyclic (meth)allyl ester compound for plastic lenses, which can be obtained by a simple and easy production process and which can endure a long-term storages, is produced using the monomer, and a plastic lens is obtained using the compound.Type: GrantFiled: July 26, 2001Date of Patent: April 8, 2003Assignee: Showa Denko K.K.Inventors: Kazuhiko Ooga, Tsuneo Tajima, Hiroshi Uchida
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Patent number: 6538085Abstract: The present invention is directed to copolymers of norbornene and functional group containing norbornene comonomers and processes for the preparation thereof. These polymers may be random, alternating or block copolymers or terpolymers, etc. In general, the present invention describes a polymer composition of the formula: [A]S— and —[B]T wherein A is monomer repeat unit derived from one or more norbornene or substituted norbornene monomers and B is a monomer repeat unit derived from one or more functionalized norbornene compounds.Type: GrantFiled: November 2, 2001Date of Patent: March 25, 2003Assignee: Eastman Kodak CompanyInventors: Christopher Moore Killian, Peter Borden Mackenzie, John Anthony Hyatt, Leslie Shane Moody, Gino Georges Lavoie
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Patent number: 6538080Abstract: A gas phase fluidized bed process is described for producing ethylene polymers having improved processability and an MWD of less than about 2.9. Multiple reactors in series or parallel may be used to produce in-situ blended polymers. Each reactor can separately have a constrained geometry catalyst or a conventional Ziegler-Natta catalyst as needed for obtaining in-situ blended polymer with the desired properties as long as there is a constrained geometry catalyst in at least one reactor. Olefin polymers can be produced according to this invention which have low susceptibility to melt fracture, even under high shear stress conditions.Type: GrantFiled: February 4, 2000Date of Patent: March 25, 2003Assignee: BP Chemicals LimitedInventors: Robert D. Swindoll, Bruce A. Story, Brian W. S. Kolthammer, Kevin P. Peil, David R. Wilson, James C. Stevens
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Publication number: 20030050411Abstract: A polymerization process comprises (1) contacting at least one polymerizable monomer in the presence of a metal catalyst in a reactor; (2) effectuating polymerization of the monomer; (3) adding a substituted olefin having at least one polar group to the reactor. The substituted olefin is different from the monomer. Vinyl-terminated macromers preferably are generated which can be homopolymerized or copolymerized with the monomer by the metal catalyst. A polymer of an olefin monomer and a substituted olefin comprising a backbone and a plurality of side chains. The polymer is characterized by an Rv of greater than about 0.85, where Rv is a measure of the relative number of vinyl groups in the polymer. In some polymers, the vinyl endgroups are transformed to other useful end groups.Type: ApplicationFiled: June 11, 2002Publication date: March 13, 2003Applicant: Dow Global Technologies Inc.Inventors: Scott Gaynor, Michael Mullins, Phillip Athey, Harold Boone
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Publication number: 20030040592Abstract: To provide a hydrocarbon resin for improving rubber compositions, wherein the hydrocarbon resin has improved durability, abrasion resistance, stretch, and productivity, while retaining puncturing strength and tear strength of vulcanized rubber products such as tires and the like; and to also provide a rubber composition comprising the hydrocarbon resin, or vehicle tire obtained from the rubber composition,Type: ApplicationFiled: July 3, 2002Publication date: February 27, 2003Applicant: Nippon Petrochemicals Co., Ltd.Inventors: Shuichi Tajima, Kazuo Kawai
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Patent number: 6525153Abstract: Polymers comprising polycyclic repeating units containing pendant anhydride moieties are disclosed. The polymer can be polymerized from polycycloolefins containing pendant anhydride moieties in the presence of a nickel containing single component catalyst. In optional embodiments the polycycloolefin monomer containing the pendant anhydride functionality can be copolymerized with other polycycloolefin monomers that contain pendant functional groups to yield random copolymer products.Type: GrantFiled: March 9, 2000Date of Patent: February 25, 2003Assignees: Sumitomo Bakelite Co., Ltd., International Business Machines Corp.Inventors: Saikumar Jayaraman, Brian L. Goodall, Richard Vicari, John-Henry Lipian, Robert David Allen, Juliann Opitz, Thomas I. Wallow
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Hetero cyclic metallocene compounds and use thereof in catalyst system for producing olefin polymers
Publication number: 20030036612Abstract: 1 A metallocene compound of general formula (I): LGZMXp, wherein L is a divalent group, Z is a moiety of formula (II), wherein R3 and R4 are selected from hydrogen and hydrocarbon groups; A and B are selected from S, O or CR5, wherein R5 is selected from hydrogen and hydrocarbon groups, either A or B being different from CR5; G is a moiety of formula (III), wherein R6, R7, R8 and R9 are selected from hydrogen and hydrocarbon groups, M is an atom of a transition metal, X is selected from a halogen atom, a R10, OR10, OSO2CF3, OCOR10, SR10, NR102 or PR102 group, wherein the substituents R10 is hydrogen and a hydrocarbon group; p is an integer from 0 to 3.Type: ApplicationFiled: August 27, 2001Publication date: February 20, 2003Inventors: Ilya E. Nifant'ev, Simona Guidotti, Luigi Resconi, Ilya P. Laishevtsev -
Patent number: 6515084Abstract: Ruthenium and osmium carbene compounds that are stable in the presence of a variety of functional groups and can be used to catalyze olefin metathesis reactions on unstrained cyclic and acyclic olefins are disclosed. Also disclosed are methods of making the carbene compounds. The carbene compounds are of the formula where M is Os or Ru; R1 is hydrogen; R is selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, and substituted or unsubstituted aryl; X and X1 are independently selected from any anionic ligand; and L and L1 are independently selected from any neutral electron donor. The ruthenium and osmium carbene compounds of the present invention may be synthesized using diazo compounds, by neutral electron donor ligand exchange, by cross metathesis, using acetylene, using cumulated olefins, and in a one-pot method using diazo compounds and neutral electron donors.Type: GrantFiled: December 21, 2000Date of Patent: February 4, 2003Assignee: California Institute of TechnologyInventors: Robert H. Grubbs, Peter Schwab, Sonbinh T. Nguyen
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Publication number: 20030023013Abstract: Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula:Type: ApplicationFiled: July 16, 2002Publication date: January 30, 2003Applicant: The B.F.Goodrich CompanyInventors: John-Henry Lipian, Larry F. Rhodes, Brian L. Goodall, Andrew Bell, Richard A. Mimna, John C. Fondran, Saikumar Jayaraman, April D. Hennis, Christine N. Elia, Jennifer D. Polley, Ayusman Sen
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Patent number: 6511756Abstract: A thermoplastic dicyclopentadiene ring-opening polymer obtained by ring-opening polymerization of a monomer component containing a dicyclopentadiene monomer, characterized in that polycyclic rings which are repeating units of the polymer are bonded in cis-position relative to the carbon-carbon double bond of the main chain of the polymer in 50 mol % or more of the repeating units based on the total repeating units and the content of a low-molecular weight component of 2,000 or less in molecular weight is 10% by weight or less based on the total polymer components, and a hydrogenation product obtained by hydrogenating the carbon-carbon unsaturated bond of the thermoplastic dicyclopentadiene ring-opening polymer.Type: GrantFiled: April 24, 2000Date of Patent: January 28, 2003Assignee: Nippon Zeon Co., Ltd.Inventors: Kazuyuki Obuchi, Masaharu Tokoro, Teruhiko Suzuki, Hajime Tanisho, Kenji Otoi
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Publication number: 20030018138Abstract: A ring-opened metathesis copolymer formed by the ring-opening metathesis copolymerization of a cyoloolefin monomer having a carboxylic anhydride group selected from bicycloheptene derivatives, tetracyclododecene derivatives and hexacycloheptadecene derivatives with a cycloolefin monomer selected from bicycloheptene derivatives, tetracycloheptene derivatives and hexacycloheptene derivatives; and a hydrogenation product of the copolymer. This copolymer is produced by using a polymerization catalyst comprises an organoruthenium compound having a heterocyclic carbene compound as a ligand. The ring-opened metathesis copolymer and the hydrogenation product thereof have a low dielectric constant, a low water absorption, a high adhesion to metals and a high heat resistance.Type: ApplicationFiled: June 7, 2002Publication date: January 23, 2003Inventors: Masato Sakamoto, Yasuo Tsunogae
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Publication number: 20030013831Abstract: The present invention relates to a novel polymer comprising at least one unit derived from an ethylenically unsaturated compound containing at least one cyano functionality and at least one nonaromatic cyclic unit. The novel polymer is particularly useful when used in a photoresist composition sensitive in the deep ultraviolet region.Type: ApplicationFiled: May 11, 2001Publication date: January 16, 2003Inventors: Ralph R. Dammel, Raj Sakamuri
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Patent number: 6503687Abstract: A photosensitive polymer having a main chain consisting of only norbornene-type alicyclic units, a resist composition containing the photosensitive polymer and a preparation method thereof, wherein the photosensitive polymer is represented by the following formula: wherein R1 is an acid-labile tertiary alkyl group, R2 is &ggr;-butyrolactone-2-yl, &ggr;-butyrolactone-3-yl, pantolactone-2-yl, mevalonic lactone, 3-tetrahydrofuranyl, 2,3-propylenecarbonate-1-yl or 3-methyl-&ggr;-butyrolactone-3-yl, R3 is a hydrogen atom, methyl, ethyl or C3 to C20 alicyclic hydrocarbon, and p/(p+q+r) is 0.1˜0.8, q/(p+q+r) is 0.2˜0.8, and r/(p+q+r) is 0.0˜0.4. To prepare the photosensitive polymer, at least two different norbornene-type compounds having an ester group as a substituent are reacted in the presence of an initiator at a temperature of about 120 to about 150 ° C. without a reaction catalyst.Type: GrantFiled: December 8, 2000Date of Patent: January 7, 2003Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-woo Kim, Si-hyueng Lee, Ki-young Kwon, Dong-won Jung, Sang-jun Choi, Sang-gyun Woo
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Publication number: 20030004289Abstract: An acetal group containing norbornene-based copolymer useful for a photoresist composition, a method for producing the same, and a photoresist composition containing the same are disclosed. According to the present invention, a copolymer of the present invention has excellent transparency at a wavelength of not more than about 250 nm, excellent resolution, excellent sensitivity, dry etching resistance and excellent adhesion to the substrate.Type: ApplicationFiled: April 22, 2002Publication date: January 2, 2003Applicant: Samsung Electronics Co., Ltd.Inventors: Jung Han Shin, Bong Seok Moon, Ouck Han, Keun Byoung Yoon, Eun Sil Han
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Publication number: 20030004286Abstract: Group 4 metal complexes of the constrained geometry type, catalysts derived therefrom, and polymerization processes using the same, characterized by an alkaryl-substituted silane bridging group are disclosed.Type: ApplicationFiled: May 23, 2002Publication date: January 2, 2003Inventors: Jerzy Klosin, William J. Kruper, Peter N. Nickias, Gordon R. Roof, Jorge Soto, David D. Graf
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Publication number: 20020177066Abstract: The present invention relates to a silicon-containing copolymer which includes a maleic anhydride repeating unit, a norbornene repeating unit, and at least one silicon group-containing norbornene repeating unit. The silicon-containing copolymer is suitable for use as a top layer resist in a bilayer resist system.Type: ApplicationFiled: May 16, 2001Publication date: November 28, 2002Applicant: Industrial Technology Research InstituteInventors: Tsing-Tang Song, Tsong-Shin Jean, Weir-Torn Jiaang, Chih-Shin Chuang, Han-Bin Cheng, Jui-Fa Chang, Tzu-Yu Lin
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Patent number: 6486282Abstract: The present invention relates to a novel polymer comprising at least one unit derived from an ethylenically unsaturated compound containing at least one cyano functionality and at least one nonaromatic cyclic unit. The novel polymer is particularly useful when used in a photoresist composition sensitive in the deep ultraviolet region.Type: GrantFiled: May 11, 2001Date of Patent: November 26, 2002Assignee: Clariant Finance (BVI) LimitedInventors: Ralph R. Dammel, Raj Sakamuri
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Publication number: 20020169263Abstract: The present invention relates to telechelic polymers having crosslinkable end groups of the formula 1Type: ApplicationFiled: May 21, 2002Publication date: November 14, 2002Applicant: California Institute of TechnologyInventors: Bob R. Maughon, Takeharu Morita, Robert A. Grubbs
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Publication number: 20020169267Abstract: The present invention provides a phase retarder made of a copolymer prepared by polymerizing one non-cyclic olefin monomer (A) selected from ethylene and &agr;-olefin compound having 3 to 20 carbon atoms, one cyclic olefin monomer (B) selected from cyclic olefin compound such as norbornene, and one cyclic vinyl monomer (C) selected from vinyl compound having a cyclic unit made of an aromatic hydrocarbon or an alicyclic hydrocarbon such as styrene or vinylcyclohexane; wherein (1) an amount of the aromatic vinyl monomer is from about 1 to about 20 mol % and a total amount of the non-cyclic olefin monomer (A) and the cyclic olefin monomer (B) is from about 80 to about 99 mol % in case the component (C) is the aromatic vinyl monomer, or (2) an amount of the alicyclic vinyl monomer is from about 80 to about 99 mol % and a total amount of the non-cyclic olefin monomer and th cyclic olefin monomer is from about 1 to about 20 mol % in case the component (C) is the alicyclic vinyl monomer.Type: ApplicationFiled: April 17, 2002Publication date: November 14, 2002Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Keiichi Minakuchi, Koji Higashi, Nobuo Oi
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Patent number: 6479592Abstract: A functionalized and polymerizable polymer is described which is obtainable by ring-opening metathesis polymerization and is suitable in particular as a dental material and especially as a constituent of dental adhesives owing to an adhesion-boosting effect.Type: GrantFiled: August 20, 1999Date of Patent: November 12, 2002Assignee: Ivoclar Vivadent AGInventors: Volker Rheinberger, Norbert Moszner, Franz Stelzer, Regina Schitter, Frank Zeuner
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Patent number: 6479606Abstract: The present invention relates to polymerizable compositions for the manufacture of optical lenses with a high refractive index and a high Abbe number, and optical lenses comprising these compositions.Type: GrantFiled: December 1, 1999Date of Patent: November 12, 2002Assignee: Essilor International Compagnie Generale d'OptiqueInventors: Peiqi Jiang, Gilles Widawski, Gilbert Menduni
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Publication number: 20020161150Abstract: An ether compound of formula (1) is provided wherein R1 is H or C1-6 alkyl, R2 is C1-6 alkyl, R3 is H, C1-15 acyl or C1-15 alkoxycarbonyl which may be substituted with halogen atoms, k is 0 or 1, m is from 0 to 3, and n is from 3 to 6. The ether compound is polymerized to form a polymer having improved reactivity, robustness and substrate adhesion. A resist composition comprising the polymer as a base resin is sensitive to high-energy radiation, has excellent sensitivity, resolution, and etching resistance, and lends itself to micropatterning with electron beams or deep-UV.Type: ApplicationFiled: January 16, 2002Publication date: October 31, 2002Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Seiichiro Tachibana, Mutsuo Nakashima, Tsunehiro Nishi
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Publication number: 20020160301Abstract: The present invention provides a cross-linker monomer of formula 1, a photoresist polymer derived from a monomer comprising the same, and a photoresist composition comprising the photoresist polymer. The cross-linking unit of the photoresist polymer can be hydrolyzed (or degraded or broken) by an acid generated from a photoacid generator on the exposed region. It is believed that this acid degradation of the cross-linking unit increases the contrast ratio between the exposed region and the unexposed region. The photoresist composition of the present invention has improved pattern profile, enhanced adhesiveness, excellent resolution, sensitivity, durability and reproducibility.Type: ApplicationFiled: April 9, 2002Publication date: October 31, 2002Applicant: Hyundai Electronics Industries Co., Ltd.Inventors: Geun Su Lee, Jae Chang Jung, Ki Ho Baik
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Publication number: 20020161148Abstract: A copolymer of an acrylate monomer containing fluorine at &agr;-position with a norbornene derivative is highly transparent to VUV radiation and resistant to dry etching. A resist composition using the resin as a base polymer is sensitive to high-energy radiation below 200 nm, has excellent sensitivity, and is suited for lithographic microprocessing.Type: ApplicationFiled: February 8, 2002Publication date: October 31, 2002Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Yuji Harada, Jun Hatakeyama, Jun Watanabe, Yoshio Kawai, Masaru Sasago, Masayuki Endo, Shinji Kishimura, Michitaka Ootani, Satoru Miyazawa, Kentaro Tsutsumi, Kazuhiko Maeda
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Publication number: 20020156207Abstract: The present invention is intended to provide a polar group-containing olefin copolymer having excellent adhesion properties to metals or polar resins and excellent compatibility therewith, a process for preparing the copolymer, a thermoplastic resin composition containing the copolymer, and uses thereof. The polar group-containing olefin copolymer comprises a constituent unit derived from an &agr;-olefin of 2 to 20 carbon atoms, and a constituent unit derived from a straight-chain, branched or cyclic polar group-containing monomer having at the end a polar group such as a hydroxyl group or an epoxy group and/or a constituent unit derived from a macromonomer having at the end a polymer segment obtained by anionic polymerization, ring-opening polymerization or polycondensation. The polar group-containing olefin copolymer can be prepared by polymerizing the &agr;-olefin with the polar group-containing monomer and/or the macromonomer in the presence of a metallocene catalyst.Type: ApplicationFiled: September 7, 2001Publication date: October 24, 2002Inventors: Junichi Imuta, Nori Kashiwa, Seiji Ota, Satoru Moriya, Tadahito Nobori, Kazumi Mizutani
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Patent number: 6465584Abstract: The invention relates to an elastomeric copolymer derived from components comprising a) ethylene, b) an &agr;-olefin, c) a non-conjugated polyene (C) having one C═C bond that is copolymerizable using a Ziegler-Natta catalyst, and d) optionally a non-conjugated polyene (D) which in the molecule contains two or more C═C bonds that are copolymerizable using a Ziegler-Natta catalyst. The copolymer is characterized by, inter alia, a specific branching coefficient BC. The invention also relates to a process for the preparation of such copolymers.Type: GrantFiled: December 27, 1999Date of Patent: October 15, 2002Assignee: DSM N.V.Inventors: Georges G. Evens, Emanuel M. J. Pijpers, Andreas A. Oosterlaken, Jacob Renkema, Henri J. H. Beelen
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Patent number: 6462158Abstract: Disclosed herein are polymerizable compounds represented by the following formula (1): wherein one of R1 and R2 represents an alkyl group, which has 1 to 4 carbon atoms and is other than a tert-butyl group, and the other represents a hydrogen atom or an alkyl group which has 1 to 4 carbon atoms and is other than a tert-butyl group, R3 to R9 each independently represent a hydrogen atom, a silyl group, a cyano group, a hydroxyl group, a halogen atom or a monovalent nonpolymerizable organic substituent group, and A represents a polymerizable group having a carbon-carbon double bond; polymers obtained by singly polymerizing the polymerizable compounds or copolymerizing them with copolymerizable compounds; and resist compositions comprising the polymers. These polymers are useful as base polymers for resist materials for an exposure light source of a short wavelength.Type: GrantFiled: August 16, 2000Date of Patent: October 8, 2002Assignee: Maruzen Petrochemical Co., Ltd.Inventors: Takuya Miwa, Nobuyuki Oka, Masao Kaneko
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Patent number: 6455650Abstract: Methods for the addition polymerization of cycloolefins using a cationic Group 10 metal complex and a weakly coordinating anion of the formula: [(R′)zM(L′)x(L″)y]b[WCA]d wherein [(R′)zM(L′)x(L″)y] is a cation complex where M represents a Group 10 transition metal; R′ represents an anionic hydrocarbyl containing ligand; L′ represents a Group 15 neutral electron donor ligand; L″ represents a labile neutral electron donor ligand; x is 1 or 2; and y is 0, 1, 2, or 3; and z is 0 or 1, wherein the sum of x, y, and z is 4; and [WCA] represents a weakly coordinating counteranion complex; and b and d are numbers representing the number of times the cation complex and weakly coordinating counteranion complex are taken to balance the electronic charge on the overall catalyst complex.Type: GrantFiled: October 5, 1999Date of Patent: September 24, 2002Assignees: The B.F. Goodrich Company, The Penn State Research FoundationInventors: John-Henry Lipian, Larry F. Rhodes, Brian L. Goodall, Andrew Bell, Richard A. Mimna, John C. Fondran, Saikumar Jayaraman, April D. Hennis, Christine N. Elia, Jennifer D. Polley, Ayusman Sen
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Publication number: 20020132937Abstract: This invention relates to a method to start up an olefin polymerization process comprising:Type: ApplicationFiled: December 6, 2001Publication date: September 19, 2002Inventor: William Howard Sachs
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Patent number: 6451946Abstract: A copolymer of (a)ethylene and/or an &agr;-olefin, (b) a cyclic olefin and (c) an alkenyl aromatic hydrocarbon, having acyclic olefin content of 0.01 to 66 mol % and a styrene content of 3 to 99 mol %, wherein the styrene content is more than a half of the cyclic olefin content, a process for producing the copolymer with a specific catalyst and a molded article made from the copolymer. The copolymer and molded article thereof are transparent, and excellent in flexibility and heat resistance.Type: GrantFiled: December 9, 1999Date of Patent: September 17, 2002Assignee: Sumitomo Chemical Company, LimitedInventors: Nobuo Oi, Yasuro Suzuki, Tatsuya Miyatake
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Patent number: 6451937Abstract: A process for the catalytic coupling of aliphatic or alkyl branched alicyclic hydrocarbons with a functionalizing reagent under thermal conditions to selectively functionalize the hydrocarbon at its primary C—H site.Type: GrantFiled: March 1, 2000Date of Patent: September 17, 2002Assignees: Shell Oil Company, Yale UniversityInventors: John F. Hartwig, Thomas Carl Semple, Huiyuan Chen
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Publication number: 20020128408Abstract: The present invention relates to a radiation sensitive photoresist composition comprising a photoacid initiator and a polycyclic polymer comprising repeating units that contain pendant acid labile groups. Upon exposure to an imaging radiation source the photoacid initiator generates an acid which cleaves the pendant acid labile groups effecting a polarity change in the polymer. The polymer is rendered soluble in an aqueous base in the areas exposed to the imaging source.Type: ApplicationFiled: May 8, 2001Publication date: September 12, 2002Inventors: Brian L. Goodall, Saikumar Jayaraman, Robert A. Shick, Larry F. Rhodes, Robert David Allen, Richard Anthony DiPietro, Thomas Wallow
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Publication number: 20020123581Abstract: The present invention relates to a process for the preparation of rubber-like ethylene/&agr;-olefin copolymers and ethylene/&agr;-olefin/non-conjugate diene terpolymers using a metallocene as catalyst, which process is characterized in that the metallocene used is a compound of the general formula (I) 1Type: ApplicationFiled: July 13, 2001Publication date: September 5, 2002Inventors: Peter Schertl, Wolfgang Nentwig, Rudiger Engehausen, Walter Kaminsky, Ulrich Weingarten
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Publication number: 20020115809Abstract: An extruded product comprising an ethylene-&agr;-olefin-nonconjugated diene copolymer rubber in which a weight ratio of ethylene unit content and &agr;-olefin unit content is 64/36-58/42, and a content of the nonconjugated diene unit is 12-16% by weight (the total weight of the ethylene unit, the &agr;-olefin unit and the non-conjugated diene unit being 100% by weight), and a Mooney viscosity (ML1+4 100° C.) is 85-100. This extruded article is excellent in compressive permanent strain and elongation, causes no blooming and can be filled with carbon black, plasicizers and the like at high rates.Type: ApplicationFiled: December 12, 2001Publication date: August 22, 2002Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Takeru Wadaki, Takaaki Sakai, Tomoaki Okita
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Publication number: 20020111446Abstract: A polymerization system for ring opening polymerization of cycloolefins, comprising a catalyst [MOX2L2], a Lewis acid as co-catalyst, and a chain-transfer agent, 1Type: ApplicationFiled: December 7, 2000Publication date: August 15, 2002Inventors: Shakti L. Mukerjee, Vernon L. Kyllingstad
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Publication number: 20020099155Abstract: 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): 1Type: ApplicationFiled: July 3, 2001Publication date: July 25, 2002Inventors: Yoshihisa Inoue, Shigekazu Matsui, Yasuhiko Suzuki, Yasunori Yoshida, Yukihiro Takagi, Terunori Fujita, Tomoaki Matsugi, Takashi Nakano
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Publication number: 20020091216Abstract: The present invention relates to novel monomers which can be used to form polymers which are useful in a photolithography employing a light source in the far ultraviolet region of the light spectrum, copolymers thereof, and photoresist compositions prepared therefrom.Type: ApplicationFiled: February 19, 2002Publication date: July 11, 2002Applicant: Hyundai Electronics Industries Co., Ltd.Inventors: Geun Su Lee, Cha Won Koh, Jae Chang Jung, Min Ho Jung, Ki Ho Baik
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Patent number: 6410670Abstract: The present invention relates to novel monomers and their polymers, which are useful in a photolithography employing a light source in the far ultraviolet region of the light spectrum, copolymers thereof, and photoresist compositions prepared therefrom. Photoresist monomers of the present invention are represented by the following Chemical Formula 1: wherein, R is substituted or non-substituted linear or branched (C1-C10)alkyl, substituted or non-substituted (C1-C10)ether, substituted or non-substituted (C1-C10)ester, or substituted or non-substituted (C1-C10)ketone; X and Y are independently CH2, CH2CH2, oxygen or sulfur; and i is 0 or an integer of 1 to 2.Type: GrantFiled: August 26, 1999Date of Patent: June 25, 2002Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Geun Su Lee, Cha Won Koh, Jae Chang Jung, Min Ho Jung, Ki Ho Baik
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Publication number: 20020077434Abstract: Polymeric compositions of matter are described comprising olefin polymer chains having Mn of about 400 to 75,000, a ratio of vinyl groups to total olefin groups according to the formula 1 vinyl ⁢ ⁢ groups olefin ⁢ ⁢ groups ≥ [ comonomer ⁢ ⁢ mole ⁢ ⁢ percentage + 0.Type: ApplicationFiled: November 6, 2001Publication date: June 20, 2002Inventor: Eric J. Markel
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Patent number: 6403281Abstract: The present invention provides a cross-linker monomer of formula 1, a photoresist polymer derived from a monomer comprising the same, and a photoresist composition comprising the photoresist polymer. The cross-linking unit of the photoresist polymer can be hydrolyzed (or degraded or broken) by an acid generated from a photoacid generator on the exposed region. It is believed that this acid degradation of the cross-linking unit increases the contrast ratio between the exposed region and the unexposed region. The photoresist composition of the present invention has improved pattern profile, enhanced adhesiveness, excellent resolution, sensitivity, durability and reproducibility. where A, B, R1, R2, R3, R4, R5, R6 and k are as defined herein.Type: GrantFiled: August 22, 2000Date of Patent: June 11, 2002Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Geun Su Lee, Jae Chang Jung, Ki Ho Baik
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Publication number: 20020058765Abstract: The present invention relates to a metal-free cyclopentadienide compound which, in conjunction with a metallocene, is able to form a catalyst system that can be used for the polymerization of olefins. It is thus possible to dispense with the use of methylaluminoxane (MAO) or boron-containing compounds as co-catalyst and nevertheless achieve a high degree of catalytic activity. The invention relates also to a process for the preparation of the metal-free cyclopentadienide compound and to the use thereof as a catalyst component in the preparation of polyolefins.Type: ApplicationFiled: August 3, 2001Publication date: May 16, 2002Inventors: Sigurd Becke, Uwe Denninger, Steffen Kahlert, Werner Obrecht, Claudia Schmid, Heike Windisch
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Publication number: 20020058767Abstract: A method for producing an olefin type copolymer having a cyclic structure, which comprises copolymerizing ethylene (M1) and dicyclopentadiene or tricyclopentadiene (M2), and, as optionally introduced, a cyclic olefin (M3), wherein, as a catalyst, a catalyst comprising a metallocene compound (A) of the following formula [1]:Type: ApplicationFiled: November 5, 2001Publication date: May 16, 2002Applicant: MARUZEN PETROCHEMICAL CO., LTD.Inventors: Shigeharu Yamamoto, Sakae Kamiyama, Toshifumi Takemori, Yoji Suzuki, Kazuhiko Mizuno, Yoko Furuyama, Hiroshi Yamazaki
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Publication number: 20020058769Abstract: The present invention is directed to copolymers of norbornene and functional group containing norbornene comonomers and processes for the preparation thereof. These polymers may be random, alternating or block copolymers or terpolymers, etc.Type: ApplicationFiled: November 2, 2001Publication date: May 16, 2002Inventors: Christopher Moore Killian, Peter Borden Mackenzie, John Anthony Hyatt, Leslie Shane Moody, Gino Georges Lavoie
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Patent number: 6388032Abstract: A cyclic olefin polymer having a small content of a catalyst residue, a production process for the same and use of the same as an optical material. Catalysts used for polymerization and/or hydrogenation reaction for forming the cyclic olefin polymer are decomposed efficiently by adding at least one compound selected from the group consisting of an &agr;-oxyacid and &bgr;-oxyacid having one hydroxyl group and one carboxyl group in the molecule and derivatives obtained by substituting hydroxyl group thereof by an alkoxyl group, and the decomposition products are removed by rendering them insoluble in a reaction solvent used for the polymerization and/or hydrogenation reaction and precipitating them efficiently.Type: GrantFiled: April 14, 2000Date of Patent: May 14, 2002Assignee: Teijin LimitedInventors: Michio Yamaura, Kiyonari Hashidzume, Hideaki Nitta, Masaki Takeuchi, Kaoru Iwata
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Patent number: 6387592Abstract: A pattern forming material includes a binary copolymer represented by the following general formula or a ternary or higher copolymer obtained by further polymerizing the binary copolymer with another group: wherein R1 indicates a hydrogen atom or an alkyl group; R2 and R3 independently indicate a hydrogen atom, an alkyl group, a phenyl group or an alkenyl group or together indicate a cyclic alkyl group, a cyclic alkenyl group, a cyclic alkyl group having a phenyl group or a cyclic alkenyl group having a phenyl group; R4 indicates a hydrogen atom or an alkyl group; x satisfies a relationship of 0<x<1; and y satisfies a relationship of 0<y<1.Type: GrantFiled: April 16, 2001Date of Patent: May 14, 2002Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Takahiro Matsuo, Masayuki Endo, Masamitsu Shirai, Masahiro Tsunooka
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Patent number: 6384162Abstract: A process for production of an ethylene-propylene-diene-methylene (EPDM) tetrapolymer having long chain branching is described. The process comprises the step of polymerizing a monomer mixture comprising ethylene, propylene, a first diolefin monomer containing one polymerizable double bond (preferably ENB) and a second diolefin containing two polymerizable double bonds (preferably VNB) in the presence of a catalyst system. The catalyst system comprises: a catalyst comprising a compound containing vanadium +3 with the proviso that the compound does not comprise a halogen directly bound to the vanadium; a halogenated organoaluminum cocatalyst having a halogen to aluminum molar ratio in the range of from about 1 to about 2; and an activator. The branched polymer product of the present process exhibits a molecular weight distribution of less than about 3.5 and improved rheological properties and enhanced processability characteristics.Type: GrantFiled: December 15, 2000Date of Patent: May 7, 2002Assignee: Bayer AktiengesellschaftInventors: Hayder A. Zahalka, Dilipkumar Padliya, Harald Bender