Contains A Sulfur Atom Patents (Class 525/341)
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Patent number: 11795247Abstract: Provided herein are polyolefin dispersants, as well as methods for producing polyolefin dispersants. The polyolefin dispersants can be defined by the formula below where Rx is cationic initiator residue; Ra is a polyolefin group; R1 and R2 are each, independently in each —(CR1R2) unit, H, alkyl, alkoxy, or alkylaryl; R3 and R4 are each, independently, H, alkyl, or alkoxy; m is an integer from 1 to 20; n is an integer from 1 to 6; r is an integer from 1 to 4; Y is a polyvalent amine linker comprising one or more tertiary amines, wherein the polyvalent amine linker does not include a primary amine or a secondary amine; and A is absent, or comprises a dispersive moiety.Type: GrantFiled: December 17, 2020Date of Patent: October 24, 2023Assignee: The University of Southern MississippiInventors: Robson F. Storey, Travis P. Holbrook, C. Garrett Campbell, Georgeta Masson
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Patent number: 10611855Abstract: Modified diene polymers containing heteroatoms are disclosed, as is their production, rubber mixtures comprising these modified diene rubbers, and to their use for the production of rubber vulcanizates, which serve, in particular, for the production of rubber moldings and the production of tires.Type: GrantFiled: January 5, 2016Date of Patent: April 7, 2020Assignee: ARLANXEO DEUTSCHLAND GMBHInventors: Heike Kloppenburg, Thomas Ruenzi
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Patent number: 9010393Abstract: Tyre and rubber composition for tyre, based on at least one isoprene elastomer (for example natural rubber), an inorganic filler as reinforcing filler (for example silica) and a coupling system which provides the bonding between the said reinforcing inorganic filler and the isoprene elastomer, the said coupling system comprising, in combination: as first coupling agent, a silane sulphide compound; as second coupling agent, an at least bifunctional organosilicon compound (for example an organosilane or an organosiloxane) which can be grafted to the elastomer by means of an azodicarbonyl functional group (—CO—N?N—CO—).Type: GrantFiled: May 11, 2006Date of Patent: April 21, 2015Assignee: Michelin Recherche et Technique, S.A.Inventors: Jose Carlos Araujo Da Silva, Nathalie Binde, Pierre Robert, Sebastien Sterin, Anne Veyland
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Patent number: 8217130Abstract: Disclosed herein is a curable composition excellent in workability, adhesion properties, rubber-like properties, storage stability, and quick curability. The curable composition comprises (A) a crosslinkable silyl group-containing organic polymer and (B) a (meth)acrylic polymer obtained by polymerizing a (meth)acrylic monomer having a polymerizable unsaturated bond in the presence of a metallocene compound and a crosslinkable silyl group-containing thiol compound, at least one end of the (meth)acrylic polymer being bonded to a residue, —S—R3 (where R3 represents a group having a crosslinkable silyl group) obtained by removing a hydrogen atom from the crosslinkable silyl group-containing thiol compound.Type: GrantFiled: June 25, 2010Date of Patent: July 10, 2012Assignee: Cemedine Co., Ltd.Inventors: Atsushi Saito, Tomonori Saito, Naomi Okamura
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Patent number: 7999066Abstract: The present invention relates to a precipitation process for removing transition metals from polymer solutions. Specifically, it comprises the removal of transition metal complexes which usually comprise copper from polymer solutions after a completed atom transfer radical polymerization.Type: GrantFiled: February 12, 2007Date of Patent: August 16, 2011Assignee: Evonik Roehm GmbHInventors: Sven Balk, Gerd Loehden, Christine Miess, Christine Troemer, Monika Maerz
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Patent number: 7989552Abstract: A curative composition suitable for fluoroelastomers comprising an anion of Formula III: wherein each Rf independently is R—CF2 or a perfluoroalkyl group having from 1 to 8 carbon atoms, wherein R is H, halo, alkyl, aryl, or cycloalkyl, having up to 8 carbon atoms and which also may be halogenated, fluorinated, or perfluorinated, and which may contain a heteroatom, wherein X is a linking group, and wherein n is a positive integer. Also provided are a fluoropolymer composition including this curative, a method of making a fluoropolymer, and fluoropolymer articles containing curable or cured fluoropolymer compositions.Type: GrantFiled: June 13, 2008Date of Patent: August 2, 2011Assignee: 3M Innovative Properties CompanyInventors: Werner M. A. Grootaert, Eric W. Adair, Miguel A. Guerra
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Patent number: 7781559Abstract: Disclosed herein is a curable composition excellent in workability, adhesion properties, rubber-like properties, storage stability, and quick curability. The curable composition comprises (A) a crosslinkable silyl group-containing organic polymer and (B) a (meth)acrylic polymer obtained by polymerizing a (meth)acrylic monomer having a polymerizable unsaturated bond in the presence of a metallocene compound and a crosslinkable silyl group-containing thiol compound, at least one end of the (meth)acrylic polymer being bonded to a residue, —S—R3 (where R3 represents a group having a crosslinkable silyl group) obtained by removing a hydrogen atom from the crosslinkable silyl group-containing thiol compound.Type: GrantFiled: July 30, 2004Date of Patent: August 24, 2010Assignee: Cemedine Co., Ltd.Inventors: Atsushi Saito, Tomonori Saito, Naomi Okamura
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Publication number: 20090186987Abstract: The present invention relates to the manufacture of polyethylene based wall articles with improved color and processing conditions, which can be surprisingly reached by the use of a specific combination of stabilizers.Type: ApplicationFiled: July 25, 2007Publication date: July 23, 2009Applicant: CLARIANT FINANCE (BVI) LIMITEDInventors: Ernesto Dongiovanni, Korada Supat, Warangkana Saisuwan, Christoph Kröhnke
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Patent number: 7402630Abstract: A curative composition comprising a cation and an anion of the formula Anq?Qpm+, wherein m, n, p, and q are positive integers, wherein m*p=n*q, wherein Qm+ is an organo onium, and Aq? is an anion, provided that at least one Aq? is selected from the formula: wherein each R independently is H, halo, alkyl, aryl, aralkyl, or cycloalkyl, and which also may be halogenated, fluorinated, or perfluorinated, wherein two or more of R and R? groups may together form a ring, wherein each R group independently may contain one or more heteroatom(s), wherein R? can be the same as R, with the proviso that R? cannot be halo. Also provided are a fluoropolymer composition including this curative, a method of making a fluoropolymer, and fluoropolymer articles containing curable or cured fluoropolymer compositions.Type: GrantFiled: December 16, 2004Date of Patent: July 22, 2008Assignee: 3M Innovative Properties CompanyInventors: Werner M. A. Grootaert, Eric W. Adair, Miguel A. Guerra
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Publication number: 20070203278Abstract: The present invention relates to a cross-linked polyethylene composition having outstanding sweat-out inhibition and insulation properties. The composition of the invention characteristically comprises (A) 100 weight part of polyethylene; (B) 0.2-0.6 weight part of a mixture of a liquid antioxidant and a hindered phenol or thio ester antioxidant; (C) 0.2-0.9 weight part of polyethylene glycol having a molecular weight of 5,000-70,000; and (D) 1-4 weight part of a cross-linking agent.Type: ApplicationFiled: December 8, 2006Publication date: August 30, 2007Applicant: LG CHEM, LTD.Inventors: Youngil SONG, Ingyu PARK, Yoonsun NAM, Deukju KIM
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Patent number: 6881798Abstract: Disclosed is a preparation method of an exfoliated nitropolymer/silicate nanocomposite by emulsion polymerization of monomers forming the polymer in an aqueous dispersion of non-modified, layered silicate in the presence of a reactive emulsifier having both a radical-polymerizable vinyl group and a functional group with affinity for silicate. In the process of the polymerization, silicate is fully exfoliated and uniformly dispersed in the polymer. Therefore, only a small amount of silicate is sufficient to improve thermal and mechanical properties of the polymer. Further, the method is advantageous in terms of a simple preparation process due to no use of organo-modified silicate, thus achieving an economic benefit.Type: GrantFiled: January 16, 2003Date of Patent: April 19, 2005Assignee: Samsung Atofina Co. Ltd.Inventors: Yeong Suk Choi, In Jae Chung, Sung Chul Kim
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Patent number: 6806307Abstract: The invention provides chain-coupled polymeric sulfide compounds for use as the elastomeric component in vulcanizable elastomeric compositions comprising silica, carbon black or mixtures thereof. In particular, the invention provides anionically polymerized polymers having polymer chain living ends that are functionalized with sulfide groups and coupled together by a metal or nonmetal atom. The chain-coupled polymeric sulfide compounds have an initial high viscosity for ease of handling prior to compounding, a stable viscosity during storage, and a decreased compound viscosity for better filler dispersion and improved mixing efficiency. The invention further provides a pneumatic tire having at least one component produced from the vulcanizable elastomeric composition of the invention. A tire tread produced from vulcanized elastomers exhibiting these improved properties will exhibit reduced hysteresis resulting in an increase in rebound and improved rolling resistance and wet traction.Type: GrantFiled: October 11, 2001Date of Patent: October 19, 2004Assignee: Bridgestone CorporationInventors: Terrence E. Hogan, William L. Hergenrother
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Patent number: 6797780Abstract: The invention relates to rubber compounds based on rubber particles and phosphoryl polysulfides, as well as to vulcanizates or shaped articles prepared therefrom. The addition of phosphoryl polysulfides improves the strengthening effect of the rubber particles and the level of the mechanical properties, without lowering the resilience of the vulcanizates prepared therefrom.Type: GrantFiled: October 29, 2001Date of Patent: September 28, 2004Assignee: Rhein Chemie Rheinau GmbHInventors: Werner Obrecht, Winfried Jeske, Thomas Früh, Ludger Heiliger
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Patent number: 6706824Abstract: By heating at above the melting point and/or glass transition point of the polycondensate and adding an aromatic dicyanate; or adding a mixture comprising an aromatic dicyanate and a polyfunctional compound selected from the class of sterically hindered hydroxyphenyl-alkyl-phosphonic esters and monoesters, diphosphonites and secondary aromatic amines; or adding a mixture comprising (i) an aromatic dicyanate, (ii) at least one polyfunctional compound selected from the class of sterically hindered hydroxyphenyl-alkyl-phosphonic esters and monoesters, diphosphonites and secondary amines, and (iii) a difunctional epoxide, it is possible to bring about an increase in the molecular weight and/or viscosity of virgin polycondensate and polycondensate recyclates.Type: GrantFiled: November 1, 2000Date of Patent: March 16, 2004Assignee: Ciba Specialty Chemicals CorporationInventors: Rudolf Pfaendner, Kurt Hoffmann, Heinz Herbst
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Patent number: 6617480Abstract: The present invention relates to a molecular weight-enlarged, homogeneously soluble ligand, which includes: an average molecular weight of at least 1000 g/mol; a molecular weight-enlarging polymer; optionally, a linker; and at least one homochiral active center; wherein the active center is bound to the molecular weight-enlarging polymer through the linker or is bound directly to the molecular weight-enlarging polymer, methods of preparing, catalysts containing same, and methods of using same.Type: GrantFiled: January 24, 2001Date of Patent: September 9, 2003Assignee: Degussa AGInventors: Hans-Peter Krimmer, Jens Woeltinger, Olaf Burkhardt, Ingo Klement, Hans Henniges, Karlheinz Drauz, Andreas Bommarius, Jean-Louis Philippe, Andreas Karau
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Patent number: 6372858Abstract: A solid nucleophilic reagent for the conversion of benzylic halogen functionality on polymers to other functionalities, and methods of making and using the same.Type: GrantFiled: October 13, 2000Date of Patent: April 16, 2002Assignee: Exxon Mobil Chemical Patents Inc.Inventors: Chia S. Chee, Hsien-Chang Wang, Kenneth William Powers
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Patent number: 6334476Abstract: A pneumatic tire comprising a tread, wherein the rubber composition of the tread layer comprises 50 parts by weight or more of SBR in 100 parts by weight of the rubber component and, in an amount of 0.2 to 5.0 parts by weight per 100 parts by weight of the rubber component, a vulcanization accelerator represented by the following general formula (I): wherein R1 and R2 each independently represents an alkyl group having 1 to 10 carbon atoms which may be linear, branched, or cyclic or an aryl group having 6 to 10 carbon atoms. The pneumatic tire shows excellent controllability at high speed.Type: GrantFiled: September 5, 1997Date of Patent: January 1, 2002Assignee: Bridgestone CorporationInventors: Nobuyuki Okamura, Masahiro Hojo
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Patent number: 6300421Abstract: The invention relates to preparation of EPDM-based and EPR-based rubber compositions which are vulcanized with peroxide together with a specified combination of sulfur and acrylate co-agents. The invention further relates to articles having at least one component thereof.Type: GrantFiled: March 4, 1999Date of Patent: October 9, 2001Assignee: The Goodyear Tire & Rubber CompanyInventors: Edward John Blok, Mark Leslie Kralevich, Jr., Paul Harry Sandstrom, Larry Ashley Gordon, James Edward Taucher
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Patent number: 6274680Abstract: A method of preparing a functionalized polymer comprising the steps of initiating the formation and propagation of an anionically-polymerized living polymer, and terminating the propagation of the living polymer by reacting the polymer with a terminating agent selected from the group of agents defined by the formulas (III), (IV), and (V) where C is a carbon atom, S is a sulfur atom, X is a halogen atom, R2 and R4 are independently selected from hydrogen and carbon-based moieties, and where the phenyl groups are selected from unsubstituted and substituted phenyl groups.Type: GrantFiled: December 31, 1998Date of Patent: August 14, 2001Assignee: Bridgestone/Firestone Research, Inc.Inventors: David F. Lawson, Mark L. Stayer, Thomas A. Antkowiak
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Patent number: 6239231Abstract: A chemical amplifying type positive resist composition, excellent in adhesion to a substrate and good in resist performances and suitable for exposure using a KrF excimer laser, ArF excimer laser, or the like, which comprises a resin having a polymerization unit of 2-alkyl-2-adamantyl (meth)acrylate and a polymerization unit of a monomer selected from 3-hydroxy-1-adamantyl (meth)acrylate and (meth)acrylonitrile, and an acid generator is provided.Type: GrantFiled: August 26, 1999Date of Patent: May 29, 2001Assignee: Sumitomo Chemical, Company LimitedInventors: Hiroaki Fujishima, Yasunori Uetani, Karou Araki
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Patent number: 5939493Abstract: A rubber composition comprising 100 parts by weight of a rubber component which comprises at least one type of rubber selected from the group consisting of natural rubber and diene synthetic rubbers, 0.1 to 10 parts by weight of at least one type of metal dithiophosphate represented by the following general formula, optionally 15 to 85 parts by weight of a reinforcing inorganic filler, and optionally a specific tertiary amine compound in an amount of 0.5 to 15% by weight of the amount of the reinforcing inorganic filler is provided.General formula ##STR1## wherein R.sup.1 and R.sup.3 each independently represents an alkyl group or a cycloalkyl group, M represents an antimony atom, a zinc atom, a copper atom, or an iron atom, and n represents a valency of M.The rubber composition of the present invention exhibits excellent resistance to heat or resistance to heat aging (particularly excellent resistance to hardening and excellent fracture properties).Type: GrantFiled: December 24, 1997Date of Patent: August 17, 1999Assignee: Bridgestone CorporationInventor: Masahiro Hojo
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Patent number: 5891956Abstract: Water-soluble polymers including functionalization from the group of amino groups, carboxylic acid groups, phosphonic acid groups, phosphonic ester groups, acylpyrazolone groups, hydroxamic acid groups, aza crown ether groups, oxy crown ethers groups, guanidinium groups, amide groups, ester groups, aminodicarboxylic groups, permethylated polyvinylpyridine groups, permethylated amine groups, mercaptosuccinic acid groups, alkyl thiol groups, and N-alkylthiourea groups are disclosed.Type: GrantFiled: May 30, 1995Date of Patent: April 6, 1999Assignee: The Regents of the University of California, Office of Technology TransferInventors: Barbara F. Smith, Thomas W. Robison, Joel W. Gohdes
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Patent number: 5830817Abstract: A vulcanization accelerator combination based on di-(C.sub.6 -C.sub.12 alkyl)dithiophosphates for vulcanizing non-polar rubbers, comprising the following components: (a) a di-(C.sub.6 -C.sub.12 alkyl)dithiophosphate; (b) one or more compounds selected from the group consisting of sulphenamides, thiazoles and carbamates; (c) sulfur and/or a sulfur donor; and (d) at least one additional accelerator compound having a specific chemical structure that is different from the chemical structure of component (a) and any of the compounds used as component (b) in said accelerator combination.Type: GrantFiled: January 14, 1997Date of Patent: November 3, 1998Assignee: Rhein Chemie Rheinau GmbHInventors: Hans-Joachim Graf, Volker Schafer, Hartmut Schulz, Erich Schmidt, Hans-Martin Issel, Hans-Dieter Voss, Harald Kleinknecht, Manfred Schweiger
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Patent number: 5780531Abstract: The surface-modified fillers according to the invention are manufactured by treating oxidic or siliceous fillers with a silane of the formulaR.sup.1 R.sup.2 R.sup.3 Si--X.sup.1 --(--S.sub.x --Y--).sub.m --(--S.sub.x --X.sup.2 --SiR.sup.1 R.sup.2 R.sup.3).sub.nand are used for the manufacture of rubber vulcanizates, particularly tyres, with reduced dynamic damping and favourable abrasion behaviour.Type: GrantFiled: June 17, 1996Date of Patent: July 14, 1998Assignee: Bayer AGInventor: Thomas Scholl
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Patent number: 5668233Abstract: Disclosed herein are partially fluorinated (co)polymers containing sulfonic acid or sulfonate salt groups, processes for making those polymers, and intermediates for those (co)polymers. The (co)polymers are useful as ion-exchange resins and (in the sulfonic acid form) acid catalysts.Type: GrantFiled: May 23, 1996Date of Patent: September 16, 1997Assignee: E. I. Du Pont de Nemours and CompanyInventors: Andrew Edward Feiring, Shlomo Rozen
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Patent number: 5565512Abstract: A fluorine-containing elastomer composition comprising a terpolymer of tetrafluoroethylene, perfluoro(lower alkyl vinyl ether) and cyano group-containing (perfluorovinylether), and a less expensive of the ammonium salt of organic or inorganic acid as a curing agent produce a vulcanization product having good heat resistance and solvent resistance, and when no carbon black, etc. are contained in the composition for curing, transparent vulcanization product having satisfactory physical properties are obtainable.Type: GrantFiled: March 22, 1996Date of Patent: October 15, 1996Assignee: Nippon Mektron, LimitedInventors: Satoru Saito, Futoshi Kumiya, Haruyoshi Tatsu
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Patent number: 5366649Abstract: Modified copolymers usable as additives for lubricants and having antiwear and viscosity index-improving properties are prepared by the modification of ethylene-propylene copolymers or ethylene-propylene-diene terpolymers in such a was as to fix the sulphur and phosphorus. Such modified copolymers contain 0.2 to 2% phosphorus, and 0.4 to 4% sulphur and are used in a lubricating composition at a rate of 0.25 to 10%.Type: GrantFiled: June 15, 1993Date of Patent: November 22, 1994Assignee: Institut Francais du PetroleInventors: Jean-Pierre Durand, Catherine Keromest, Maurice Born
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Patent number: 5326827Abstract: A curable resin composition comprising (a) an acrylic polymer having a plurality of alicyclic epoxide functions, and (b) an amount effective to initiate the curing reaction of the acrylic polymer (a) upon heating of a heat-latent cation polymerization initiator. The composition finds its uses in coating compositions, sealants, potting and casting compositions.Type: GrantFiled: October 21, 1993Date of Patent: July 5, 1994Assignee: Nippon Paint Co., Ltd.Inventors: Kei Aoki, Shinji Nakano, Nobuaki Tomita
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Patent number: 5262490Abstract: A fluoroelastomer composition is disclosed comprising an elastomeric polymer and a combination of a sulfonium compound and an ammonium or phosphonium compound. Shaped articles comprising the composition are also disclosed.Type: GrantFiled: August 24, 1992Date of Patent: November 16, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Robert E. Kolb, Werner M. Grootaert
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Patent number: 5241003Abstract: Succinimides, succinic esters, and succinic ester-amides are formed by (A) reacting (i) at least one substantially aliphatic polymer of at least one lower olefin, and (ii) an acidic reactant or a mixture of two or more acidic reactants represented by the general formulaR--CO--CH.dbd.Type: GrantFiled: June 8, 1992Date of Patent: August 31, 1993Assignee: Ethyl Petroleum Additives, Inc.Inventors: David J. Degonia, Paul G. Griffin
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Patent number: 5115035Abstract: A terminal-modified block copolymer having the remainder of an amino group or imido group-containing a terminal-treating agent bonded to the polymer terminal which is obtained by treating the active terminal of a block copolymer comprising conjugated dienes and vinylaromatic hydrocarbon compounds, which is obtained by using as the polymerization initiator at least one member selected from alkali metals or organoalkali metals and has a vinylaromatic hydrocarbon content of 5 to 95% by weight and a number average molecular weight of 5,000 to 1,000,000 with at least one terminal-treating agent selected from imide compounds, cyanamide compounds, aziridinyl compounds, amide compounds, or tertiary amino group-containing compounds other than the compounds.Type: GrantFiled: June 29, 1989Date of Patent: May 19, 1992Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Toshinori Shiraki, Yasuo Hattori
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Patent number: 4803250Abstract: A rubber composition containing(A) a bismaleimide compound represented by the general formula (I) ##STR1## wherein R is a divalent acyclic aliphatic group, cyclic aliphatic group, aromatic group, or alkylaromatic group, these groups optionally containing a hetero atom selected from O, N and S in their chain or side substituent,(B) a sulfenamide compound represented by the general formula (II) ##STR2## wherein R.sub.1 and R.sub.2 denote independently from each other a hydrogen atom, an acyclic aliphatic group, or cyclic aliphatic group, or R.sub.1 and R.sub.2 together denote a chain aliphatic group which optionally contains an oxygen atom, provided that R.sub.1 and R.sub.2 cannot simultaneously denote a hydrogen atom,(C) a dithiophosphoric acid compound represented by the general formula (III) ##STR3## wherein R.sub.3 and R.sub.Type: GrantFiled: March 2, 1987Date of Patent: February 7, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Hideo Nagasaki, Yasuzi Takemoto
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Patent number: 4775736Abstract: Epoxy resins having acceptable pot lives, degrees of reactivity, and physical properties are obtained by the use of curing agent compositions which comprise about 99.6-90% by weight of a hindered aromatic diamine, such as diethyltoluenediamine, and about 0.4-10% by weight of an accelerator complex of boron trifluoride and a cycloaliphatic diamine, such as isophoronediamine.Type: GrantFiled: August 26, 1987Date of Patent: October 4, 1988Assignee: Ethyl CorporationInventor: Paul L. Wiggins
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Patent number: 4745147Abstract: A curable composition comprising chlorinated polyethylene containing 20 to 50 weight percent chlorine, from 0.75 to 3 parts per 100 parts by weight chlorinated polyethylene of a polymercapto compound such as 2,5-dimercapto-1,3,4-thiadiazole, from 0.5 to 20 parts by weight per 100 parts by weight chlorinated polyethylene of an acid acceptor such as magnesium oxide, from 0.25 to 10 parts by weight per 100 parts chlorinated polyethylene of a polyhydric alcohol. Preferably the composition contains an initiator which is an amine, quaternary ammonium compound or a phosphonium compound.Type: GrantFiled: October 24, 1986Date of Patent: May 17, 1988Assignee: E. I. Du Pont de Nemours and CompanyInventor: Wolfgang Honsberg
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Patent number: 4680339Abstract: A high temperature, pressurized process is described to synthesize substituted carboxylated modified acrylamide polymers represented by the structure: ##STR1## wherein X is from the group --SO.sub.3 M, --PO.sub.3 M.sub.2, --COOR, --OR, ##STR2## and mixtures thereof.Type: GrantFiled: February 24, 1986Date of Patent: July 14, 1987Assignee: Nalco Chemical CompanyInventor: Dodd W. Fong
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Patent number: 4581416Abstract: The invention relates to processes for the synthesis of tertiary phosphine oxides and sulfides.The process according to the invention consists, in a first step, of reacting a secondary phosphine oxide or sulfide with an optionally activated alkali metal amide, and, in a second step, of reacting the mixture obtained in the first step with an organic halide containing at least one halogenophenyl radical or one halogenomethyl group.Tertiary phosphine oxides and sulfides are complexing agents of high stability.Type: GrantFiled: January 23, 1984Date of Patent: April 8, 1986Assignee: Societe Nationale des Poudres et ExplosifsInventors: Wilfrid Bergeret, Sylvie Boileau, Jean-Claude Gautier, Serge Raynal
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Patent number: 4560730Abstract: This application discloses an improvement in the preparation of a ruthenium complex supported on an organic polymer, wherein the complex is added to the support over an extended period of time rather than all at once.Type: GrantFiled: November 21, 1984Date of Patent: December 24, 1985Assignee: The Standard Oil CompanyInventors: James D. Burrington, Robert K. Grasselli, Fred Pesa, Elizabeth A. Maher
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Patent number: 4447584Abstract: The invention relates to processes for the synthesis of tertiary phosphine oxides and sulphides. The process according to the invention consists, in a first step, of reacting a secondary phosphine oxide or sulfide with an optionally activated alkali metal amide, and, in a second step, of reacting the mixture obtained in the first step with an organic halide containing at least one halogenophenyl radical or one halogenomethyl group. Tertiary phosphine oxides and sulphides are complexing agents of high stability.Type: GrantFiled: January 18, 1982Date of Patent: May 8, 1984Assignee: Societe Nationale des Poudres et ExplosifsInventors: Wilfrid Bergeret, Jean-Claude Gautier, Serge Raynal, Sylvie Boileau
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Patent number: 4386185Abstract: Silica-reinforced rubber compositions are prepared employing a mercaptan-substituted phosphonate as a coupling agent. Preparation and use of the mercaptan-substituted phosphonate coupling agent is illustrated using dimethyl 3-mercaptopropylphosphonate and a butadiene/styrene emulsion polymerized copolymer reinforced with a precipitated hydrated silica.Type: GrantFiled: November 5, 1981Date of Patent: May 31, 1983Assignee: Phillips Petroleum CompanyInventors: Gary D. Macdonell, Carl J. Stacy
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Patent number: 4374943Abstract: The coupling action of polysulfide alkoxy silanes in rubbers is enhanced by the utilization of triorganophosphine compositions.Type: GrantFiled: January 27, 1981Date of Patent: February 22, 1983Assignee: Union Carbide CorporationInventor: Thomas C. Williams
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Patent number: 4324870Abstract: Improvements in scorch time of natural and synthetic rubber compositions in urethane crosslinking systems employing alkyl derivatives of dithiophosphoric acid as the scorch delay cure catalyst having the formula: ##STR1## wherein R.sub.1 and R.sub.2 are alkyl having at least 12 carbon atoms, or connected together and forman alkylene group having at least 2 carbon atoms, and R.sub.3 is hydrogen or phenethyl.Type: GrantFiled: June 23, 1980Date of Patent: April 13, 1982Assignee: Uniroyal, Inc.Inventors: Yong S. Rim, Walter Nudenberg, Arnold N. Johnson
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Patent number: 4303597Abstract: The vulcanization rate of rubber stock compounded for curing is increased by using in the stock for the cure and accelerator of certain O,O-dialkyldithiophosphoryl-N-hydrocarbylthiophosphoramides; the same being, per se, new compositions of matter also useful, inter alia, as lubricating oil additives and for insecticidal purposes.Type: GrantFiled: October 5, 1979Date of Patent: December 1, 1981Assignee: The Firestone Tire & Rubber CompanyInventors: Edward L. Kay, Delmar F. Lohr
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Patent number: 4299938Abstract: Substances (I) capable of being converted into higher-molecular weight materials under the influence of a cationic catalyst, such as 1,2-epoxides, aminoplasts, vinyl monomers or prepolymers, or phenoplasts, are so converted by exposure to actinic irradiation or by heating in the presence of an aryloxysulfoxonium salt of formula ##STR1## where either R.sup.6 and R.sup.7 separately denote lower alkyl (optionally substituted by halogen and interrupted in the chain by --O-- or --SO.sub.2 --), or an aryl or aryloxy group, or R.sup.6 and R.sup.7 together denote a divalent group forming with the S atom a heterocyclic radical; R.sup.8 denotes an aryl group; M denotes an atom of a metal or metalloid; X denotes a halogen atom; and n is 4, 5, or 6, for instance,p-chlorophenoxy-p-tolyl-p-phenoxysulfoxonium hexafluorophosphate and 1-phenoxy-1-oxidotetrahydrothiophenium tetrafluorborate.Type: GrantFiled: June 9, 1980Date of Patent: November 10, 1981Assignee: Ciba-Geigy CorporationInventors: George E. Green, Edward Irving
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Patent number: 4280967Abstract: There is disclosed a novel class of vulcanization accelerators, specifically compounds such as 2-(isopropylsulfinyl)-benzothiazole.Type: GrantFiled: March 20, 1980Date of Patent: July 28, 1981Assignee: The Goodyear Tire & Rubber CompanyInventors: Roger J. Hopper, Budd H. Sturm, Joseph F. Geiser
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Patent number: 4250278Abstract: A vulcanizable fluorinated rubber composition comprising a fluorinated rubber containing --CH.sub.2 --CF.sub.2 -- units in the polymeric chain, a vulcanizing agent and a vulcanization accelerator as the essential components, characterized in that the vulcanizing agent is a fluorine-containing polyhydroxy aliphatic compound.Type: GrantFiled: May 1, 1979Date of Patent: February 10, 1981Assignee: Daikin Kogyo Co., Ltd.Inventors: Takeshi Suzuki, Yasuyoshi Furukawa, Masayasu Tomoda, Yutaka Ueta, Akira Ohmori
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Patent number: 4246375Abstract: The use of C.sub.10 to C.sub.14 alkanoic acids, especially lauric acid, as a processing aid in the vulcanization of polychloroprene rubbers by heating in the presence of magnesium oxide, zinc oxide and thiophosphoric-N,N',N"-trimethyltriamide. Also the manufacture of pre-formed mixtures of the acid and the amide in the ratio of 0.5:1 to 2:1 for use in this process.The use of these acids overcome the technical problem of blooming on storage which is obtained when the more usual stearic acid is used in the process.Type: GrantFiled: December 26, 1979Date of Patent: January 20, 1981Assignee: Vulnax International LimitedInventors: Peter Hill, Jack Thompson
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Patent number: 4243771Abstract: This invention discloses a method for converting a nitrile rubber substrate urface to a chemically active surface whereupon said surface reacts with an adhesive to form a permanent bond with said adhesive. The nitrile rubber substrate surface is so converted by treatment with a dilute mineral acid.Type: GrantFiled: November 19, 1979Date of Patent: January 6, 1981Assignee: The United States of America as represented by the Secretary of the NavyInventor: Martin H. Kaufman
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Patent number: 4233421Abstract: A thermally stable, curable fluoroelastomer composition containing sulfonium curing agent is described. The composition is curable in reactive admixture with an inorganic acid acceptor and includes:(a) a fluoroelastomer comprising vinylidene fluoride;(b) at least one triorgano sulfonium compound; and(c) at least one aromatic polyhydroxy compound.Type: GrantFiled: February 26, 1979Date of Patent: November 11, 1980Assignee: Minnesota Mining and Manufacturing CompanyInventor: Allan T. Worm
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Patent number: 4221887Abstract: Polymers comprising quaternary phosphonium counter-ion salts of acids having anionic groups covalently bonded to carbon atoms comprising a backbone chain of a polymer, or to acrylic, alicyclic or aromatic radicals which are pendant to the backbone chain of the polymer are novel compositions of matter. Such polymers vary in properties from water-soluble polyelectrolytes useful as thickening agents to thermoplastic elastomers which can be extruded, injection molded, vacuum formed, etc. at elevated temperatures. The elastomeric ionomers are useful as specialty and general purpose rubbers. The ionomers of the instant invention are plasticized with a select group of plasticizers thereby improving the rheological properties of the ionomers.Type: GrantFiled: July 17, 1978Date of Patent: September 9, 1980Assignee: Exxon Research & Engineering Co.Inventors: Douglas Brenner, Alexis A. Oswald
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Patent number: H818Abstract: This invention relates to extrusion and injection moldable type elastomeric compositions having a viscosity at 200.degree. C. at 0.73 sec.sup.-1 of about 8.times.10.sup.4 to about 8.times.10.sup.6 poises. The compositions used for elastomeric articles include neutralized sulfonated co- and terpolymers of octene-1/ethylene/ENB or sulfonated terpolymers of hexene-1/ethylene/ENB, about 15 to about 200 parts by weight of a non-polar process oil per 100 parts of polymer; about 50 to about 300 parts by weight of a filler per 100 parts of polymer; and a preferential plasticizer at about 1 to about 50 parts by weight per 100 parts of the sulfonated elastomeric polymer. The composition may also include a crystalline polyolefinic thermoplastic at less then about 100 parts per hundred by weight.Type: GrantFiled: April 3, 1987Date of Patent: September 4, 1990Assignee: Exxon Research & Engineering Co.Inventors: Joseph Wagensommer, Pawan K. Agarwal, Ilan Duvdevani