Imide Patents (Class 525/282)
-
Patent number: 7067586Abstract: Block copolymers are prepared by living-type or semi-living type free radical polymerization, with said copolymers having at least one random block comprised of at least one hydrophobic monomer and at least one hydrophilic monomer. The selection of hydrophobic and hydrophilic monomers in the random block is determined by the relative hydrophobicity of the monomers to impart selected solubility or dispersability in water and/or alcohols of the overall block copolymer.Type: GrantFiled: June 29, 2004Date of Patent: June 27, 2006Assignee: Symyx Technologies, Inc.Inventors: Mingjun Liu, Damian Hajduk, Jean M. J. Frechet, Ezat Khoshdel, Ralph B. Nielsen, Dominique Charmot
-
Patent number: 7014781Abstract: A composition and the method for sustaining the biocidal activity of chlorinated polystyrene hydantoin beads. The method comprises supplying a continuous low level halogen concentration to the chlorinated polystyrene hydantoin beads in the water to be treated that flows in contact with the chlorinated polystyrene hydantoin beads, resulting in treated water suitable for drinking.Type: GrantFiled: July 12, 2005Date of Patent: March 21, 2006Assignee: Vanson Halosource, Inc.Inventors: Michael A. Bridges, Hiroyuki Kawai, Tay-Yuan Chen, Everett J. Nichols, Jeffrey F. Williams, Steven McClure, Jerry Wetherbee
-
Patent number: 6960636Abstract: In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. The resulting thermosets are stable to elevated temperatures, are highly flexible, have low moisture uptake and are consequently useful in a variety of applications, e.g., in adhesive applications since they display good adhesion to both the substrate and the device attached thereto.Type: GrantFiled: January 13, 2003Date of Patent: November 1, 2005Assignee: Henkel CorporationInventors: Stephen M. Dershem, Puwei Liu
-
Patent number: 6946523Abstract: In accordance with the present invention, there are provided novel heterobifunctional monomers and users for the same. Invention compounds have many of the properties required by the microelectronics industry, such as, for example, hydrophobicity, high Tg values, low dielectric constant, ionic purity, low coefficient of thermal expansion (CTE), and the like. These properties result in a thermoset that is particularly well suited to high performance applications where typical operating temperatures are often significantly higher than those at which prior art materials were suitable. Invention compounds are particularly ideal for use in the manufacture of electronic components, such as, for example, printed circuit boards, and the like.Type: GrantFiled: July 1, 2003Date of Patent: September 20, 2005Assignee: Henkel CorporationInventors: Stephen M. Dershem, Kevin J. Forrestal, Puwei Liu
-
Patent number: 6943217Abstract: A golf ball comprising a core formed from a composition comprising a metal salt of an unsaturated organic acid and at least one co-curing agent comprising an unsaturated imide or a metallic derivatives thereof; and a cover layer.Type: GrantFiled: May 14, 2003Date of Patent: September 13, 2005Assignee: Acushnet CompanyInventors: Peter R Voorheis, Murali Rajagopalan
-
Patent number: 6916856Abstract: In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. The resulting thermosets are stable to elevated temperatures, are highly flexible, have low moisture uptake and are consequently useful in a variety of applications, e.g., in adhesive applications since they display good adhesion to both the substrate and the device attached thereto.Type: GrantFiled: July 3, 2002Date of Patent: July 12, 2005Assignee: Henkel CorporationInventors: Stephen M. Dershem, Dennis B. Patterson, Jose A. Osuna, Jr.
-
Patent number: 6878797Abstract: A process for producing alkali metal polymaleimide salts by alkaline hydrolysis of maleimide polymers prepared by polymerization of maleimide monomers in the presence of a metal oxide and alcohol initiator or a base. In particular, the process produces alkali metal polymaleimide salts with particular ratios of C—N and C—C connected maleimide-derived monomer units which are dependent on the particular initiator used to synthesize the maleimide polymer. The alkali metal polymaleimide salts, which have chelating and anti-scaling properties, are useful as chelating agents and detergent builders and as such are suitable biodegradable replacements for synthetic polymers and sodium polyaspartate.Type: GrantFiled: April 19, 2002Date of Patent: April 12, 2005Assignees: Board of Trustees of Michigan State University, Applied CarboChemicalsInventors: Kris A. Berglund, Parminder Agarwal, Qiuyue Yu, Adam Harant
-
Patent number: 6852803Abstract: A polymer dispersant for pigments based on a graft copolymer which contains a new type of urea functional group as the pigment anchoring group. The urea groups are attached to the graft copolymer by a convenient method which involves reaction of hydroxyl functional groups built in the graft copolymer with a diisocyanate that is capped at one end with ammonia or a primary or secondary amine. The reaction is convenient and clean. Substantial crosslinking or gelling of the polymer can be easily avoided by judicious selection of appropriate ingredients and processing conditions. These materials are effective in dispersing and stabilizing a wide range of pigments in solvent based systems and are particularly useful in forming pigment dispersions that are used in a variety of solvent borne coating compositions for automobiles and trucks, where they provide improved efficiency of pigment use, lower paint viscosity, and reduced emission of volatile organic solvent.Type: GrantFiled: June 3, 2002Date of Patent: February 8, 2005Assignee: E. I. du Pont de Nemours and CompanyInventor: Sheau-Hwa Ma
-
Patent number: 6852814Abstract: In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. The resulting thermosets are stable to elevated temperatures, are highly flexible, have low moisture uptake and are consequently useful in a variety of applictions, e.g., in adhesive applications since they display good adhesion to both the substrate and the device attached thereto.Type: GrantFiled: February 25, 2002Date of Patent: February 8, 2005Assignee: Henkel CorporationInventors: Stephen M. Dershem, Dennis B. Patterson, Jose A. Osuna, Jr.
-
Patent number: 6831132Abstract: In accordance with the present invention, there are provided film adhesive compositions comprising at least one macromonomer having at least one unit of ethylenic unsaturation, at least one thermoplastic elastomer co-curable with the macromonomer, and at least one cure initiator, and methods for use thereof. Invention compositions are useful as adhesives in the microelectronics industry. In particular, invention film adhesives may be used to produce microelectronic assemblies with very thin bond lines without compromising adhesive strength.Type: GrantFiled: March 28, 2002Date of Patent: December 14, 2004Assignee: Henkel CorporationInventors: Puwei Liu, Stephen M. Dershem, Kang Yang, Carolyn C. Albino
-
Patent number: 6828355Abstract: This invention relates to resin-reinforced silicone compositions curable upon exposure to radiation in the electromagnetic spectrum, which compositions when cured demonstrate improved elastomeric properties, such as tensile strength, modulus and elongation. The inventive resin-reinforced silicone compositions may alternatively be rendered curable by exposure to moisture. In addition, the inventive composition may be rendered curable by exposure to radiation in the electromagnetic spectrum, and exposure to moisture. The inventive silicone compositions are particularly well suited for use in electronic conformal coating and potting applications, as well as in automotive gasketing applications, pressure sensitive adhesive applications and the like.Type: GrantFiled: January 18, 2002Date of Patent: December 7, 2004Assignee: Henkel CorporationInventor: Hsien-Kun Chu
-
Patent number: 6825245Abstract: In accordance with the present invention, there are provided novel thermosetting resin compositions which do not require solvent to provide a system having suitable viscosity for convenient handling. Invention compositions have the benefit of undergoing rapid cure. The resulting thermosets are stable to elevated temperatures, are highly flexible, have low moisture uptake and are consequently useful in a variety of applications, e.g., in adhesive applications since they display good adhesion to both the substrate and the device attached thereto.Type: GrantFiled: August 1, 2002Date of Patent: November 30, 2004Assignee: Henkel CorporationInventors: Stephen M. Dershem, Dennis B. Patterson, Jose A. Osuna, Jr.
-
Publication number: 20040230007Abstract: A golf ball comprising a core formed from a composition comprising a metal salt of an unsaturated organic acid and at least one co-curing agent comprising an unsaturated imide or a metallic derivatives thereof; and a cover layer.Type: ApplicationFiled: May 14, 2003Publication date: November 18, 2004Inventors: Peter R. Voorheis, Murali Rajagopalan
-
Patent number: 6767968Abstract: Block copolymers are prepared by living-type or semi-living type free radical polymerization, with said copolymers having at least one random block comprised of at least one hydrophobic monomer and at least one hydrophilic monomer. The selection of hydrophobic and hydrophilic monomers in the random block is determined by the relative hydrophobicity of the monomers to impart selected solubility or dispersability in water and/or alcohols of the overall block copolymer.Type: GrantFiled: October 3, 2000Date of Patent: July 27, 2004Assignee: Symyx Technologies, Inc.Inventors: Mingjun Liu, Damian Hajduk, Jean M. J. Fréchet, Ezat Khoshdel, Ralph B. Nielsen, Dominique Charmot
-
Patent number: 6734276Abstract: The invention is a polyimide, random copolymer having repeating units of the formula (1): wherein R1 and R2 each represent a divalent group selected from and R1 and R2 may be the same or different; and x=0.60 to 0.80, y+z=0.40 to 0.20, and x+y+z=1.00, and a linear expansion coefficient at 100 to 200° C. is in the range of from 10 to 20 ppm/K. This is a useful polyimide that can be a polyimide circuit substrate material capable of keeping flat, neither shrinking nor expanding in its laminate.Type: GrantFiled: April 11, 2002Date of Patent: May 11, 2004Assignee: Mitsui Chemicals, Inc.Inventors: Wataru Yamashita, Katsuji Watanabe, Takahisa Oguchi
-
Patent number: 6723796Abstract: Methods are disclosed for making graft copolymers. The methods comprise the steps of: (a) providing (i) an ethylene/propylene (EP) copolymer or other graftable polymer, (ii) an ethylenically unsaturated sulfur-, nitrogen- and/or oxygen-containing monomer, and (iii) an amount of an initiator sufficient to graft said monomer and EP copolymer or other graftable polymer, (b) introducing said EP copolymer or other graftable polymer into an extruder; (c) introducing said monomer into the extruder; (d) introducing said initiator into the extruder, wherein at least one of the above-identified reactants in (a) is introduced in the presence of a polar solvent; and (e) reacting said EP copolymer or other graftable polymer, monomer and initiator by operating said extruder, thereby forming the graft copolymer. This invention also relates to methods of making a dispersant viscosity index improver and methods for making a lubricating oil.Type: GrantFiled: March 11, 2002Date of Patent: April 20, 2004Assignee: Castrol LimitedInventors: Irwin L. Goldblatt, Richard P Sauer
-
Patent number: 6686321Abstract: A grafted polyolefin containing one or more of N-vinylimidazole, 4-vinylpyridine, or other ethylenically-unsaturated nitrogen-containing or oxygen-containing graftable monomers grafted to a polyolefin copolymer is disclosed. The grafted polyolefin preferably has a weight average molecular weight of from about 20,000 to about 500,000, a polydispersity of less than about 10, and an ADT value of at least about 8. The grafted polyolefin can be defined as containing more than about 1.2% by weight of grafted monomer on a polyolefin, or as containing at least about 13 moles of graftable monomers per mole of polyolefin, or as having an asphaltene dispersancy test (ADT) value of at least about 8. Also described is a lubricating oil comprising a lubricant base oil and a grafted polyolefin as described above. Also described is a method of making a dispersant viscosity index improver.Type: GrantFiled: October 9, 2001Date of Patent: February 3, 2004Assignee: Castrol LimitedInventors: Frederick J. Boden, Richard P. Sauer, Irwin L. Goldblatt, Michael E. McHenry
-
Patent number: 6608158Abstract: The present invention relates to a copolymer resin for a photoresist used in far ultraviolet ray such as KrF or ArF, process for preparation thereof, and photoresist comprising the same resin. The copolymer resin according to the present invention is easily prepared by conventional radical polymerization due to the introduction of mono-methyl cis-5-norbonen-endo-2,3-dicarboxylate unit to a structure of norbornene-maleic anhydride copolymer for photoresist. The resin has high transparency at 193 nm wavelength, provides increased etching resistance and settles the problem of offensive odor occurred in the course of copolymer resin synthesis. Further, as the resin composition can be easily controlled due to the molecular structure, the resin can be manufactured in a large scale.Type: GrantFiled: January 22, 2002Date of Patent: August 19, 2003Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Min Ho Jung, Jae Chang Jung, Cheol Kyu Bok, Ki Ho Baik
-
Patent number: 6599978Abstract: A copolymer comprising a maleimide-based monomer unit and/or an unsaturated dicarboxylic acid anhydride-based monomer unit, where the copolymer contains an unreacted maleimide-based monomer and/or an unsaturated dicarboxylic acid anhydride-based monomer in an amount of 200 ppm or less and an adduct of a compound other than the polymerized units of the copolymer and the maleimide-based monomer and/or unsaturated dicarboxylic acid anhydride-based monomer in an amount of 0.1 to 3,000 ppm.Type: GrantFiled: November 20, 2000Date of Patent: July 29, 2003Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoshifumi Shikisai, Hisaya Yokohama
-
Patent number: 6559231Abstract: The present invention relates to a curing type water base resin composition comprising: (I) a copolymer obtained by copolymerizing an ethylenically unsaturated monomer (a) having a maleimide group, an ethylenically unsaturated monomer (b) having a carbonyl group and other ethylenically unsaturated monomer (c) and (II) a compound having two or more groups per molecule which are the same or different and selected from a hydrazide group, a semicarbazide group and hydrazone group and further comprising, if necessary, as an additional component: (III) a copolymer having a carbonyl group and/or (IV) a water base polyurethane resin having a carbonyl group or a hydrazine group.Type: GrantFiled: November 30, 2001Date of Patent: May 6, 2003Assignee: Kansai Paint Co., Ltd.Inventors: Mitsutaka Hasegawa, Hiroshi Inukai, Eiichi Okazaki, Nobushige Numa, Masami Sugishima, Koki Nakamura, Keiichiro Saikawa, Yushichi Ishihara
-
Publication number: 20030044377Abstract: Method for preparing biocidal halogenated polystyrene hydantoins. The biocidal polymers poly-1,3-dichloro-5-methyl-5-(4′-vinylphenyl)hydantoin, poly-1,3-dibromo-5-methyl-5-(4′-vinylphenyl)hydantoin, and their monohalogenated alkali metal salts and protonated derivatives have been prepared as porous beads by use of highly crosslinked polystyrene beads as starting materials. The porous beads will be useful in water and air disinfection applications when employed in cartridge filters and carafes (for water), as well as for controlling noxious odor when mixed with absorbent materials in items such as disposable diapers, incontinence pads, bandages, sanitary napkins, pantiliners, mattress covers, shoe inserts, sponges, animal litter, carpets, fabrics, and air filters or the like.Type: ApplicationFiled: October 15, 2002Publication date: March 6, 2003Applicant: Auburn UniversityInventors: Shelby D. Worley, Yongjun Chen
-
Patent number: 6518392Abstract: A novel dielectric composition is provided that is useful in the manufacture of integrated circuit devices and integrated circuit packaging devices. The dielectric composition is prepared by imidizing and curing an oligomeric precursor compound comprised of a central polybenzoxazole, polybenzothiazole, polyamic acid or polyamic acid ester segment end-capped at each terminus with an aryl-substituted acetylene moiety such as an ortho-bis(arylethynyl)aryl group, e.g., 3,4-bis(phenylethynyl)phenyl. Integrated circuit devices, integrated circuit packaging devices, and methods of synthesis and manufacture are provided as well.Type: GrantFiled: March 8, 2001Date of Patent: February 11, 2003Assignee: International Business Machines CorporationInventors: Kenneth R. Carter, James L. Hedrick, Victor Yee-Way Lee, Dale C. McHerron, Robert D. Miller
-
Patent number: 6475698Abstract: Polymeric compounds for lithographic printing plates, especially plates for use in printing utilizing UV curable inks, may include a structural unit (I) wherein R1 represents an optionally-substituted cyclic or alkyl group, x represents 0 or 1 and A represents an optionally-substituted alkylene group. A range of compounds having different solubilities in selected solvents may be prepared by varying the identity or group R1. Such components may be prepared by reacting an amine of formula R1NH2 with the maleic anhydride derivative corresponding to moiety 1.Type: GrantFiled: December 1, 2000Date of Patent: November 5, 2002Assignee: Kodak Polychrome Graphics LLCInventors: Alan Stanley Monk, James Laurence Mulligan
-
Patent number: 6476096Abstract: An ink jet printer ink is provided in the form of a non-aqueous dispersion of colorant in a diluent and containing a dispersant for the colorant and which yields print having no discernible odor. The diluent comprises more than 50% by volume of white oil and the dispersant, which is employed in an amount of at least 20% by weight of the colorant, comprises at least one compound having both a long chain aliphatic group and at least one &agr;, &bgr;-dicarboxylic acid moiety, e.g. a polyisobutylene succinimide.Type: GrantFiled: July 13, 2000Date of Patent: November 5, 2002Assignee: Xaar Technology LimitedInventors: Stuart Molloy, John Philip Tatum
-
Patent number: 6472353Abstract: Graft copolymers useful as a dispersant-viscosity improver for lubricating oil compositions comprise a hydrocarbon polymer having graft polymerized thereon at least two nitrogen containing units, at least one of the nitrogen containing units being derived from at least one of a neutral N-(lower hydrocarbyl group)- (meth)acrylamide and a neutral N,N-di-(lower hydrocarbyl group)- (meth)acrylamide, wherein the total number of carbon atoms in the lower hydrocarbyl groups does not exceed 9, and at least one of the nitrogen containing units being derived from at least one vinylic nitrogen containing heterocyclic compound.Type: GrantFiled: May 16, 2001Date of Patent: October 29, 2002Assignee: The Lubrizol CorporationInventors: John C. Smoggie, Richard M. Lange
-
Patent number: 6423780Abstract: In accordance with the present invention, there are provided novel heterobifunctional monomers and uses for the same. Invention compounds have many of the properties required by the microelectronics industry, such as, for example, hydrophobicity, high Tg values, low dielectric constant, ionic purity, low coefficient of thermal expansion (CTE), and the like. These properties result in a thermoset that is particularly well suited to high performance applications where typical operating temperatures are often significantly higher than those at which prior art materials were suitable. Invention compounds are particularly ideal for use in the manufacture of electronic components, such as, for example, printed circuit boards, and the like.Type: GrantFiled: February 7, 2001Date of Patent: July 23, 2002Assignee: LoctiteInventors: Stephen M. Dershem, Kevin J. Forrestal
-
Patent number: 6414089Abstract: A method of manufacturing a polymer film having second order non-linear optical properties which has excellent stability of orientated molecules and does not become disorientated, and a polymer film and a non-linear optical element are provided. A polymer solution is placed between two substrates, which are disposed substantially perpendicular with respect to a rotating stand and substantially symmetrical with respect to a rotation axis of the rotating stand, and the rotating stand is rotated. A polymer film having second order non-linear optical properties is formed by the centrifugal force generated at the polymer solution.Type: GrantFiled: August 29, 2000Date of Patent: July 2, 2002Assignees: Riken, Japan Science and Technology CorporationInventors: Hiromi Kimura-Suda, Hiroyuki Sasabe, Tatsuo Wada
-
Patent number: 6410652Abstract: Methods for making graft copolymers include (a) providing (i) an ethylene/propylene 9EP) copolymer or other graftable polymer, (ii) an ethylenically unsaturated sulfur-, nitrogen- and/or oxygen-containing monomer, and (iii) an amount of an initiator sufficient to graft said monomer and EP copolymer or other graftable polymer, (b) introducing the EP copolymer or other graftable polymer into an extruder, (c) introducing the monomer into the extruder, (d) introducing the initiator into the extruder, wherein at least one of the reactants employed in step (a) is introduced in the presence of a polar solvent, and (e) reacting the EP copolymer or other graftable polymer, monomer and initiator by operating the extruder, thereby forming the graft copolymer. Methods of making dispersant viscosity index improver and methods for making a lubricating oil, as well as graft copolymers, viscosity index improvers and lubricating oils made by such methods are also contemplated.Type: GrantFiled: April 6, 2000Date of Patent: June 25, 2002Assignee: Castrol LimitedInventors: Irwin L. Goldblatt, Richard P Sauer
-
Patent number: 6407197Abstract: Aqueous dispersion of a polymer, which polymer has been obtained by subjecting a starting polymer which contains maleic anhydride monomer units and vinyl aromatic monomer units to an imidization reaction, the starting polymer containing 7-50 mole % maleic anhydride monomer units and the imidization reaction having been carried out in such a way that at most 75% of the maleic anhydride monomer units has been imidized.Type: GrantFiled: September 1, 2000Date of Patent: June 18, 2002Assignee: DSM N.V.Inventors: Hendrik J. Van Den Berg, Mathijs H. G. Maassen, Laurentius W. Steenbakkers
-
Patent number: 6380318Abstract: A modified acrylic rubber having distinguished molding characteristics and O-ring compression set characteristic is produced by mixing an acrylic rubber having reactive functional groups such as active chlorine groups, carboxylic groups, epoxy groups, active ester groups, etc. with an unsaturated compound reactive with the reactive functional group with heating in the absence of a solvent.Type: GrantFiled: June 11, 1998Date of Patent: April 30, 2002Assignee: Nippon Mektron, LimitedInventors: Kuniyoshi Saito, Eiji Komiya, Jun Okabe
-
Patent number: 6380319Abstract: A polymer contains a succinimide ring substituted on the nitrogen atom by a reactive group, where the ring is supported either by the main chain or by a side chain, the polymer resulting from reacting at least one polyolefin with at least one compound containing a maleimide ring substituted on the nitrogen atom by a reactive group with formula —R—(X)n where X is a reactive group, n is a whole positive number equal to 1 or more and R is a residue containing at least one carbon atom. These polymers can be used for the production of co-extruded products, multi-layered materials, surface coatings and polymer alloys.Type: GrantFiled: November 6, 2000Date of Patent: April 30, 2002Assignee: Institut Francais du PetroleInventors: Yves Camberlin, Serge Gonzalez, Frédérique Hauviller
-
Publication number: 20020042349Abstract: A grafted polyolefin containing one or more of N-vinylimidazole, 4-vinylpyridine, or other ethylenically-unsaturated nitrogen-containing or oxygen-containing graftable monomers grafted to a polyolefin copolymer is disclosed. The grafted polyolefin preferably has a weight average molecular weight of from about 20,000 to about 500,000, a polydispersity of less than about 10, and an ADT value of at least about 8. The grafted polyolefin can be defined as containing more than about 1.2% by weight of grafted monomer on a polyolefin, or as containing at least about 13 moles of graftable monomers per mole of polyolefin, or as having an asphaltene dispersancy test (ADT) value of at least about 8. Also described is a lubricating oil comprising a lubricant base oil and a grafted polyolefin as described above. Also described is a method of making a dispersant viscosity index improver.Type: ApplicationFiled: October 9, 2001Publication date: April 11, 2002Inventors: Frederick J. Boden, Richard P. Sauer, Irwin L. Goldblatt, Michael E. McHenry
-
Patent number: 6350817Abstract: Phenylethynyl containing reactive additives were prepared from aromatic diamines containing phenylethynyl groups and various ratios of phthalic anhydride and 4-phenylethynylphthalic anhydride in glacial acetic acid to form the imide in one step or in N-methyl-2-pyrrolidinone to form the amide acid intermediate. The reactive additives were mixed in various amounts (10% to 90%) with oligomers containing either terminal or pendent phenylethynyl groups (or both) to reduce the melt viscosity and thereby enhance processability. Upon thermal cure, the additives react and become chemically incorporated into the matrix and effect an increase in crosslink density relative to that of the host resin. This resultant increase in crosslink density has advantageous consequences on the cured resin properties such as higher glass transition temperature and higher modulus as compared to that of the host resin.Type: GrantFiled: April 13, 1999Date of Patent: February 26, 2002Assignee: The United States of America as represented by the United States National Aeronautics and Space AdministrationInventors: John W. Connell, Joseph G. Smith, Jr., Paul M. Hergenrother
-
Publication number: 20020007042Abstract: A thermoplastic or thermosetting adhesive for bonding an electronic component to a substrate in which the adhesive is cured in situ from a curable composition comprises one or more poly- or mono-functional maleimide compounds, or one or more poly- or mono-functional vinyl compounds other than maleimide compounds, or a combination of maleimide and vinyl compounds, a curing initiator and optionally, one or more fillers.Type: ApplicationFiled: February 1, 2001Publication date: January 17, 2002Inventors: Donald E. Herr, Rose Ann Schultz
-
Patent number: 6300289Abstract: A grafted polyolefin containing one or more of N-vinylimidazole, 4-vinylpyridine, or other ethylenically-unsaturated nitrogen-containing or oxygen-containing graftable monomers grafted to a polyolefin copolymer is disclosed. The grafted polyolefin preferably has a weight average molecular weight of from about 20,000 to about 500,000, a polydispersity of less than about 10, and an ADT value of at least about 8. The grafted polyolefin can be defined as containing more than about 1.2% by weight of grafted monomer on a polyolefin, or as containing at least about 13 moles of graftable monomers per mole of polyolefin, or as having an asphaltene dispersancy test (ADT) value of at least about 8. Also described is a lubricating oil comprising a lubricant base oil and a grafted polyolefin as described above. Also described is a method of making a dispersant viscosity index improver.Type: GrantFiled: December 22, 1999Date of Patent: October 9, 2001Assignee: Castrol LimitedInventors: Frederick J. Boden, Richard P. Sauer, Irwin L. Goldblatt, Michael E. McHenry
-
Patent number: 6297325Abstract: This invention relates to rubber compositions comprised of cis-1,4-polyisoprene and a polymeric di-maleamic acid and to articles of manufacture having at least one component comprised thereof, including tires. The polymeric di-maleamic acid has been observed to enhance green strength of such rubber composition.Type: GrantFiled: February 25, 2000Date of Patent: October 2, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Paul Harry Sandstrom
-
Patent number: 6265530Abstract: A thermoplastic or thermosetting curable adhesive composition for bonding an electronic component to a substrate in which the adhesive is cured in situ comprises one or more poly- or mono-functional maleimide compounds, or one or more poly- or mono-functional vinyl compounds other than maleimide compounds, or a combination of maleimide and vinyl compounds, a curing initiator and optionally, one or more fillers.Type: GrantFiled: June 18, 1999Date of Patent: July 24, 2001Assignee: National Starch and Chemical Investment Holding CorporationInventors: Donald Herr, Rose Ann Schultz, Pingyong Xu, Scott R. McLaughlin
-
Patent number: 6187721Abstract: Soot in a lubricated diesel engine is effectively dispersed without adversely affecting the viscosity of the lubricant by using a particular lubricant. The lubricant utilized comprises a lubricant base stock (e.g. more than 75% by weight), a dispersant (e.g. from 0.2-less than 4% from a detergent inhibitor (D1) package), and a functionalized viscosity index improver (e.g. from 0.1-2.5% by solids weight). The functionalized viscosity index improver is a highly functionalized graft copolymer reaction product of an oxygen, a nitrogen, or an oxygen and nitrogen containing, ethylenically unsaturated, aliphatic or aromatic monomer having from 2 to about 50 carbon atoms grafted onto a polyolefin copolymer. Also, 0-2.5% by solids weight of another viscosity index improver besides the highly functionalized graft copolymer reaction product may be added, as well as other conventional additives.Type: GrantFiled: December 29, 1998Date of Patent: February 13, 2001Assignee: Castrol LimitedInventors: Irwin Goldblatt, Michael McHenry, Kenneth Henderson, Danny Carlisle, Niall Ainscough, Myron Brown, Richard Tittel
-
Patent number: 6184303Abstract: A polymer contains a succinimide ring substituted on the nitrogen atom by a reactive group, where the ring is supported either by the main chain or by a side chain, the polymer resulting from reacting at least one polyolefin with at least one compound containing a maleimide ring substituted on the nitrogen atom by a reactive group with formula —R—(X)n where X is a reactive group, n is a whole positive number equal to 1 or more and R is a residue containing at least one carbon atom. These polymers can be used for the production of co-extruded products, multi-layered materials, surface coatings and polymer alloys.Type: GrantFiled: December 11, 1997Date of Patent: February 6, 2001Assignee: Institut Francais du PetroleInventors: Yves Camberlin, Serge Gonzalez, Frédérique Hauviller
-
Patent number: 6165672Abstract: The present invention relates to a novel maleimide- or alicyclic olefin-based monomer, a copolymer resin of these monomers and a photoresist using the copolymer resin. The maleimide-introduced copolymer resin according to the present invention can easily be copolymerized with alicyclic olefin unit, has a physical property capable of enduring in 2.38% TMAH developer and increases adhesion of ArF or KrF photoresist. The photoresist film using a copolymer resin according to the present invention can be applied to highly integrate semiconductor devices.Type: GrantFiled: September 14, 1998Date of Patent: December 26, 2000Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jae Chang Jung, Keun Kyu Kong, Cheol Kyu Bok, Ki Ho Baik
-
Patent number: 6160055Abstract: A polymer contains a succinimide ring substituted on the nitrogen atom by a reactive group, where the ring is supported either by the main chain or by a side chain, resulting from reacting at least one polyolefin with at least one compound containing a maleimide ring substituted on the nitrogen atom by a reactive group with formula --R--(X).sub.n where X is a reactive group, n is a whole positive number equal to 1 or more and R is a residue containing at least one carbon atom, and with at least one polyepoxide containing at least two epoxy groups in its molecule. These polymers can be used for the production of co-extruded products, multi-layered materials, surface coatings and polymer alloys.Type: GrantFiled: December 11, 1997Date of Patent: December 12, 2000Assignee: Institut Francais de PetroleInventors: Yves Camberlin, Serge Gonzalez, Frederique Hauviller
-
Patent number: 6083888Abstract: A lubricating oil composition comprising:(a) from 0.01 to 10 percent by weight of a dispersant viscosity index improver linear diblock copolymer or a radial or star copolymer with each arm having an overall number average molecular weight of 7500 to 250,000 and comprising a block of a conjugated diene having a number average molecular weight of 5000 to 200,000 and a block of a vinyl aromatic hydrocarbon having a number average molecular weight of 2500 to 100,000, and a vinyl aromatic hydrocarbon content of 5 to 50 weight percent, wherein from 5 to 10 N-vinyl imidazole functional groups per molecule have been grafted onto the copolymer;(b) from 5 to 20 percent by weight of a dispersant inhibitor package containing 40 percent by weight less ashless dispersant than is required for use with a non-dispersant viscosity index improver; and(c) from 80 to 95 percent by weight of a base oil.Type: GrantFiled: September 16, 1997Date of Patent: July 4, 2000Assignee: Shell Oil CompanyInventor: Robert Jude Sutherland
-
Patent number: 6077908Abstract: A polyoxymethylene resin composition comprising (A) 100 parts by weight of a polyoxymethylene resin and (B) 0.01 to 10 parts by weight of a vinyl compound having a primary acid amide group and an acid imide group is provided. The composition is excellent in heat stability in molding and weatherability and suited for use as a molding material for electric and electronic parts and automotive parts.Type: GrantFiled: March 6, 1998Date of Patent: June 20, 2000Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventor: Shyuzi Yahiro
-
Patent number: 6069206Abstract: Disclosed is an aromatic polycarbonate-styrene polymer resin composition comprising (A) an aromatic polycarbonate, (B) a specific rubber-modified styrene polymer and (C) a compatibility agent which is a copolymer containing an aromatic vinyl monomer and which has a non-uniform distribution with respect to the proportions of component monomers constituting the copolymer, so that the copolymer comprises copolymer molecules having different solubility parameter (SP) values, wherein the difference in SP value between the copolymer molecule having a maximum SP value and the copolymer molecule having a minimum SP value is from 0.4 to 0.6 (cal/cm.sup.3).sup.1/2, and wherein the copolymer has an average SP value of from 10.6 to 11.0 [(cal/cm.sup.3).sup.1/2 ].Type: GrantFiled: December 30, 1997Date of Patent: May 30, 2000Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Hajime Nishihara, Akihiro Watanabe
-
Patent number: 6063828Abstract: A curable underfill encapsulant composition, suitable for use in semiconductor packaging, comprises one or more mono- or polyfunctional maleimide compounds, or one or more mono- or polyfunctional vinyl compounds other than maleimide compounds, or a combination of maleimide and vinyl compounds, with a free radical curing agent, and optionally, one or more fillers.Type: GrantFiled: July 2, 1998Date of Patent: May 16, 2000Assignee: National Starch and Chemical Investment Holding CorporationInventors: Bodan Ma, Quinn K. Tong
-
Patent number: 6025457Abstract: Novel molten-salt type polyelectrolytes are disclosed which contain as an essential ingredient a molten salt polymer obtained by reacting an imidazolium derivative, such as a 1,3-dialkylimidazolium halide, 1,2,3-trialkylimidazolium halide, 1-vinyl-3-alkylimidazolium halide, or 1-vinyl-2,3-alkylimidazolium halide, with an acid monomer, a poly(vinylsulfonamide), trifluoromethanesulfonimide, or the like. The electrolytes show high ionic conductivity at room temperature and have excellent stability to temperature fluctuations and excellent mechanical properties.Type: GrantFiled: December 23, 1997Date of Patent: February 15, 2000Assignee: Shikoku Chemicals CorporationInventors: Hiroyuki Ohno, Kaori Ito
-
Patent number: 6015859Abstract: A thermoplastic polymer composition contains at least two distinct polymers, characterized in that it comprises at least one polymer P1 containing at least one reactive function and at least one modified polyolefin P2 containing at least one succinimide ring substituted on the nitrogen by a reactive group, the ring being carried either by the main chain or by a side chain, and optionally at least one third polymer P3 selected from the group formed by polymers and copolymers obtained by polymerisation of one or more olefinic compounds. A mixture of polymers comprises at least one composition as defined above and at least one other polymer P5 which is identical to or different from polymer P3 and optionally at least one other polymer P6 which is identical to or different from polymer P1.Type: GrantFiled: March 23, 1998Date of Patent: January 18, 2000Assignee: Institut Francais du PetroleInventors: Yves Camberlin, Serge Gonzalez, Frederique Hauviller
-
Patent number: 6011118Abstract: A fluororesin sheet is disclosed which comprises an aromatic polyamide pulp and a fluororesin as an essential component, the tensile strength of the fluororesin sheet being not less than about 250 kg/cm.sup.2. A process for producing this fluororesin sheet comprises dispersing the aromatic polyamide pulp and the fluororesin powder in water, adding a coagulating agent which destabilizes the dispersing of the fluororesin powder to the dispersion to deposit the fluororesin powder on the surface of the aromatic polyamide pulp, paper-making, followed by drying to obtain a sheet article, and compressing the sheet article using a roller, followed by heating.Type: GrantFiled: January 30, 1998Date of Patent: January 4, 2000Assignee: Akzo Nobel nvInventors: Kosaku Asagi, Toshiharu Yamabayashi
-
Patent number: 5994465Abstract: There is provided a rubber composition and a rubber article for pharmaceutical chemicals or medical treatments, obtained by forming and cross-linking this rubber composition, the rubber article having very excellent properties which can be adapted to the standard test values of various official documents, required in this field, and can further satisfy the test items having lately become an important problem from the pharmaceutical standpoint. This rubber composition comprises 0.3 to 3.5 parts by weight of an organic peroxide cross-linking agent, 0.3 to 4 parts by weight of an organic compound having at least 2 maleimide groups in one molecule and optionally, 0.6 to 30 parts by weight of an organosilicone compound per 100 parts by weight of a isobutylene-isoprene copolymer rubber.Type: GrantFiled: May 20, 1998Date of Patent: November 30, 1999Assignee: Daikyo Gomu Seiko, Ltd.Inventors: Morihiro Sudo, Tomoyasu Muraki, Eiji Kawachi, Yasushi Kawachi
-
Patent number: 5990210Abstract: The present invention relates to rubber compositions containing an elastomer having olefinic unsaturation and a carboxymaleimidophenyl ester of the formula ##STR1## wherein R.sup.1 is selected from the group alkyls having from 1 to 8 carbon atoms and aryls having from 6 to 10 carbon atoms; and R.sup.2 and R.sup.3 may be the same or different and are selected from the group consisting of hydrogen, halogen and alkyls having from 1 to 8 carbon atoms.Type: GrantFiled: July 7, 1998Date of Patent: November 23, 1999Assignee: The Goodyear Tire & Rubber CompanyInventors: Lawson Gibson Wideman, Paul Harry Sandstrom