Sulfur And Nitrogen Together In A Single Ring Patents (Class 526/205)
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Patent number: 5399646Abstract: The present invention discloses an alkylidenenorbornene polymer comprising as the essential constituent at least one kind of the structural unit represented by the formula ##STR1## wherein R.sub.1 denotes an alkyl group of 1-4 carbon atoms and R.sub.2 denotes a hydrogen atom or an alkyl group of 1-5 carbon atoms, and a process for producing the same.According to the present invention, an alkylidenenorbornene polymer is obtained which is excellent in light resistance, transparency, heat resistance and moisture resistance and is useful as an optical polymeric material.Type: GrantFiled: July 16, 1993Date of Patent: March 21, 1995Assignee: Nippon Zeon Co., Ltd.Inventors: Teiji Kohara, Shin-ichiro Tahara, Yoshitsugu Hirokawa, Tadao Natsuume
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Patent number: 5378775Abstract: A polymer scale preventive agent for use in polymerization of a monomer having an ethylenically unsaturated double bond, comprising (A) a N-substituted leucophenothiazine having the general formula (I): ##STR1## wherein Z is a carbonyl group or a sulfonyl group, R.sup.1, R.sup.2 and R.sup.3 are a hydrogen atom, alkyl group, an amino group, etc., and (B) a water-soluble basic polysaccharide. The agent is used for forming a coating on the inner wall, etc. of a polymerization vessel. Deposition of polymer scale can be effectively prevented, and polymeric product with high whiteness is obtained.Type: GrantFiled: March 8, 1994Date of Patent: January 3, 1995Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshihide Shimizu, Minoru Shigemitsu
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Patent number: 5310836Abstract: The invention provides a process for polymerizing at least one fluoromonomer in the presence of a cyclic perfluorinated amine. Perfluoro-N-methylmorpholine is a preferred cyclic amine.Type: GrantFiled: August 12, 1993Date of Patent: May 10, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventor: Theodore A. Treat
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Patent number: 5270413Abstract: Copolymeric compositions derived from polydienophilic monomers and aliphatic cyclobutene monomers according to the formula ##STR1## in which each R is independently selected from hydrogen, halide, C.sub.1-10 alkyl, aryl and C.sub.1-10 heteroatomic such as alkoxy, aryloxy, alkylthio, arylthio and dialkylamino; X is a divalent linking group; an n is 2.Type: GrantFiled: November 24, 1992Date of Patent: December 14, 1993Assignee: Shell Oil CompanyInventor: Larry S. Corley
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Patent number: 5120823Abstract: Toughened bismaleimide resin systems capable of preparing carbon fiber reinforced composites having compression after impact strengths of greater than 40 Ksi are prepared from bismaleimide matrix resin systems containing a member of a limited set of soluble thermoplastic polyimides in particulate form.Type: GrantFiled: April 3, 1991Date of Patent: June 9, 1992Assignee: BASF AktiengesellschaftInventor: Jack D. Boyd
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Patent number: 4963592Abstract: A process for producing porous, low molecular weight vinyl polymers and copolymers via suspension polymerization in the presence of a dual function porosifier/low molecular weight modifier is disclosed. The process is especially advantageous in that it can be run at a wide variety of temperatures to obtain super porous, low molecular weight resins. Novel super porous, low molecular weight resins are also disclosed.Type: GrantFiled: November 20, 1989Date of Patent: October 16, 1990Assignee: The B. F. Goodrich CompanyInventor: Zaev Sharaby
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Patent number: 4925904Abstract: A new composition is disclosed which contains a cross linkable unsaturated polyester and a phenothiazine. The new composition has substantially improved shelf life and is particularly useful as an adhesive and for trowelling.Type: GrantFiled: August 4, 1988Date of Patent: May 15, 1990Assignee: Hilti AktiengesellschaftInventor: Arno P. O. Schmidt
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Patent number: 4920189Abstract: Toluene-soluble, sulphur-modified polychloroprene is obtained by emulsion copolymerization of chloroprene, sulphur and optionally further monomers which are copolymerizable with chloroprene and sulphur using a peroxy activator and subsequent working-up by stabilizing, stopping, degassing and isolating without separate peptization, in that polymerization is carried out in the presence of dithiocarbamates and/or xanthogenates and the activator is metered in continuously or batch-wise during the course of polymerization.Type: GrantFiled: August 25, 1987Date of Patent: April 24, 1990Assignee: Bayer AktiengesellschaftInventors: Werner Obrecht, Peter Wendling, Wilhelm Gobel, Eberhard Muller
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Patent number: 4853446Abstract: A composition having the formula ##STR1## wherein n has an average value of one to about five, is disclosed for use in reducing or eliminating the formation of reactor scale during the polymerization of vinyl chloride and comonomers. The composition is prepared by reacting phenothiazine with formaldehyde in the presence of a liquid diluent that is a solvent for the phenothiazine, but a non-solvent for the dimer of phenothiazine and formaldehyde. The process of the invention is preferably conducted in the presence of a strong acid catalyst. The formaldehyde is preferably added slowly to the reaction mixture over the course of the reaction. The product can be filtered and dried.Type: GrantFiled: June 30, 1988Date of Patent: August 1, 1989Assignee: Occidental Chemical CorporationInventors: Raymond C. DeWald, Paul O. Hong
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Patent number: 4569977Abstract: Polymerizable acrylic monomers, and anaerobic adhesives which contain such monomers, wherein the acrylic monomers contain internal chain unsaturation in addition to terminal acrylic unsaturation.Type: GrantFiled: April 19, 1985Date of Patent: February 11, 1986Assignee: Eschem Inc.Inventor: Gerhardt P. Werber
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Patent number: 4460760Abstract: There is provided a novel anaerobically curable composition which is less irritant, strongly adhesive to metal materials without primers and also storable for a long time without significant deterioration. The composition comprises per 100 parts of a polymerizable methacrylate, 0.1 to 5.0 parts of the salt of o-benzoic sulfimide and a specified aromatic amine, 0.1 to 5.0 parts of an acid amide, and 0 to 3.0 parts of a gelling stabilizer.Type: GrantFiled: June 17, 1982Date of Patent: July 17, 1984Assignee: Okura Kogyo Kabushiki KaishaInventors: Takanori Okamoto, Takaharu Onishi, Hideaki Matsuda
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Patent number: 4443587Abstract: 1,2,6-Thiadiazine-3,5-dione-1,1-dioxides of the general formula ##STR1## wherein each R and R.sub.3 independently may be substituted or unsubstituted alkyl, alkenyl or substituted cycloalkyl are described. These compounds, as well as those wherein the R substituents additionally may be cycloalkyl or substituted or unsubstituted aryl, are useful as accelerators for the peroxidic polymerization of ethylenically unsaturated compounds, such as methacrylic acid compounds, and have particular utility in dental compositions.Type: GrantFiled: February 18, 1982Date of Patent: April 17, 1984Assignee: Abitz, Morf, GritschnederInventors: Werner Schmitt, Robert Purrmann, Peter Jochum, Heinz-Joachim Hubner, Bernd Burger
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Patent number: 4431787Abstract: Polymerizable acrylic monomers, and anaerobic adhesives which contain such monomers, wherein the acrylic monomers contain internal chain unsaturation in addition to terminal acrylic unsaturation.Type: GrantFiled: May 20, 1981Date of Patent: February 14, 1984Assignee: Eschem Inc.Inventor: Gerhardt P. Werber
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Patent number: 4429093Abstract: Acidic cyclic perfluoroaliphaticdisulfonimides, salts thereof, a process for making the same, curable compositions containing acidic cyclic perfluoroaliphaticdisulfonimides or salts thereof and cationically-sensitive monomers, and a process for using acidic cyclic perfluoroaliphaticdisulfonimides and salts thereof as catalysts for the cure of cationically-sensitive monomers.Type: GrantFiled: March 7, 1983Date of Patent: January 31, 1984Assignee: Minnesota Mining and Manufacturing Co.Inventor: Robert J. Koshar
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Patent number: 4413108Abstract: Anaerobically-curing compositions are described comprising (A) a polymerizable monomer; (B) a halogen-containing compound as a first initiator component; (C) an organic thiol as a second initiator component; and (D) an inhibitor of free-radical polymerization. These compositions are particularly suitable as adhesives and may be formulated as thread-locking adhesives, or may be modified by the addition of various modifying polymers to obtain desired properties such as increased viscosities or pressure-sensitive properties.Type: GrantFiled: August 3, 1981Date of Patent: November 1, 1983Assignee: Minnesota Mining & Manufacturing CompanyInventor: Edward W. Janssen
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Patent number: 4343921Abstract: An improved adhesive composition formed by combining two parts. One part includes one or more polymerizable materials comprising one or more acrylate or methacrylate groups per molecule and a source of free radicals comprising an organic peroxide, hydroperoxide, perester or peracid. The other part includes an activator which is a specifically defined organic material which can cooperate with the source of free radicals to initiate addition polymerization of the polymerizable materials.Type: GrantFiled: November 2, 1979Date of Patent: August 10, 1982Assignee: USM CorporationInventor: Gerhard Piestert
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Patent number: 4325794Abstract: Continuous process for the preparation of water-soluble polymers in which highly concentrated monomer solutions may be polymerized by a combination of a visible light and a thermally initiated process.Type: GrantFiled: June 2, 1980Date of Patent: April 20, 1982Assignee: Calgon CorporationInventors: Wood E. Hunter, Kenneth A. Kun, Wallace B. Ramsey
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Patent number: 4321349Abstract: Curable acrylate ester compositions having as an accelerator for the polymerization a hydrazine derivative of the formula R.sup.1 --HN--NH--CO--R.sup.2. Typical of the monomers are the polyalkyleneglycol dimethacrylates and the so-called urethane acrylates. Polymerization is preferably initiated by a peroxy compound such as cumene hydroperoxide, such a composition having anaerobic curing characteristics.Type: GrantFiled: May 27, 1980Date of Patent: March 23, 1982Assignee: Loctite CorporationInventor: Richard D. Rich
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Patent number: 4256854Abstract: The present invention provides a process for the manufacture of vinyl chloride polymers by polymerization of the monomer or monomer mixture in aqueous dispersion in the presence of radical-forming catalysts and optionally suspension stabilizers, emulsifiers and further polymerization auxiliaries, which comprises carrying out the polymerization in a reactor the inner walls of which and other parts where polymer deposits may form are coated partially or entirely with a coating containing determined compounds of the formula ##STR1## In accordance with this invention, a substantial suppression of polymer deposit formation is achieved especially in the case of vinyl chloride copolymers.Type: GrantFiled: December 20, 1978Date of Patent: March 17, 1981Assignee: Hoechst AktiengesellschaftInventors: Edgar Fischer, Johannes Brandrup, Jurgen Weinlich
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Patent number: 4245072Abstract: A highly dispersed emulsion of an organosulfur compound is obtained by use of a coemulsification system of a surfactant, and an electrolyte, and a cosurfactant and optionally a hydrocarbon; such as a petroleum sulfonate with potassium chloride and hexyl alcohol. Conversion of organosulfur compounds into highly dispersed emulsions increases the reactivity of the organosulfur compound as a molecular weight modifier in an aqueous emulsion polymerization system and permits the efficient use of high molecular weight organosulfur compounds.Type: GrantFiled: March 6, 1979Date of Patent: January 13, 1981Assignee: Phillips Petroleum CompanyInventors: Carl A. Uraneck, Earl Clark
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Patent number: 4224429Abstract: A process for the anionic polymerization or copolymerization of olefinic monomers, dienic monomers, vinyl monomers and heterocyclic monomers is described which comprises reacting at least one monomer which is an olefinic monomer, a vinyl monomer or an heterocyclic monomer with a catalyst capable of inducing anionic polymerization and an aprotic macroheterocyclic cryptant, said at least one monomer being the only medium for the reaction.The macroheterocyclic complexing agent has general formula ##STR1## in which: R.sub.1 is hydrogen, a hydrocarbon radical or alkoxycarbonyl, or the two R.sub.1 together can form a group of the general formula: ##STR2## in which A is a hydrocarbon radical,D is oxygen, sulfur, or a hydrocarbon radical, with the proviso that at leat two of the D groups are oxygen or sulfur and that if R.sub.1 is hydrogen, a hydrocarbon radical or alkoxycarbonyl, one of these two D groups is oxygen or sulfur and the other is oxygen, andn and p are integers from 1 to 3 and m is 2 or 3.Type: GrantFiled: August 11, 1977Date of Patent: September 23, 1980Assignee: Societe Nationale des Poudres et ExplosifsInventors: Jean-Marie Lehn, Francois Schue, Sylvie Boileau, Alain A. Cau, Bernd Kaempf, Jean R. Moinard, Serge F. Raynal
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Patent number: 4219626Abstract: Amines, amides and amidines work as accelerators for polymerization reactions with initiators of the 1.2-diphenyl ethane type.Type: GrantFiled: September 5, 1978Date of Patent: August 26, 1980Assignee: Bayer AktiengesellschaftInventors: Heinrich Wolfers, Hans J. Rosenkranz
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Patent number: 4209604Abstract: Polymerizable acrylic monomers, and anaerobic adhesives which contain such monomers, wherein the acrylic monomers contain internal chain unsaturation in addition to terminal acrylic unsaturation.Type: GrantFiled: January 7, 1976Date of Patent: June 24, 1980Assignee: Estech Specialty Chemicals CorporationInventor: Gerhardt P. Werber
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Patent number: 4171416Abstract: A fast-setting .alpha.-cyanoacrylate-type adhesive composition having good storage stability comprising an .alpha.-cyanoacrylate and about 0.1 ppm or more of at least one macrocyclic polyether compound or an analogue thereof, such as 18-crown-6 or 15-crown-5.Type: GrantFiled: April 19, 1978Date of Patent: October 16, 1979Assignee: Toagosei Chemical Industry Co., Ltd.Inventors: Akira Motegi, Eiji Isowa, Kaoru Kimura
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Patent number: 4143097Abstract: There is provided a process for the manufacture of vinyl chloride homopolymers, copolymers or graft polymers by carrying out the polymerization in a reactor the inner parts and inserts of which are coated with a coating consisting of defined hydrazine derivatives and, preferably, a film-forming material as carrier substance.Type: GrantFiled: January 25, 1978Date of Patent: March 6, 1979Assignee: Hoechst AktiengesellschaftInventors: Edgar Fischer, Johannes Brandrup, Jurgen Weinlich
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Patent number: 4116887Abstract: A novel process for polymerization or copolymerization of monomers is described, according to which the reaction is carried out in the presence of an anionic initiator and a macroheterocyclic complexing agent of formula ##STR1## in which: EACH R.sub.1 is a hydrogen atom, a hydrocarbon group or an alkoxycarbonyl group, or the two R.sub.1 together can form a group of the general formula: ##STR2## THAT IS TO SAY FORMING A THIRD BRIDGE BETWEEN THE TWO NITROGEN ATOMS IN THE MOLECULE, A is a hydrocarbon group,D is an oxygen or sulfur atom or a hydrocarbon group, with the proviso that at least two of the groups D are oxygen or sulfur atoms and that, if each R.sub.1 is hydrogen, a hydrocarbon group or an alkoxycarbonyl group, one of these two groups D is oxygen or sulfur and the other is oxygen,n and p are integers ranging from 1 to 3, andm is 2 or 3.Type: GrantFiled: January 9, 1975Date of Patent: September 26, 1978Assignee: Societe Nationale des Poudres et ExplosifsInventors: Jean-Marie Lehn, Francois Schue, Sylvia Boileau, Bernd Kaempf, Alain Andre Cau, Jean Robert Moinard, Serge Fernand Raynal
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Patent number: 4100140Abstract: The invention relates to the manufacture of crosslinked polymers which contain imide groups by reacting polymaleimides with alkenylphenols or alkenylphenol ethers, preferably at temperatures of 100.degree. to 250.degree. C. The reaction mixture optionally also contains polymerization catalysts. The manufacture of the polymers is as a rule carried out with simultaneous shaping. Shaped articles (for example castings), laminates, adhesive bonds and foams can be manufactured in this way. It is also possible to carry out the reaction in solution.Type: GrantFiled: June 18, 1976Date of Patent: July 11, 1978Assignee: Ciba-Geigy CorporationInventors: Abdul-Cader Zahir, Alfred Renner
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Patent number: 4080493Abstract: A process for production of the maleic anhydride adduct of a liquid polymer having a maleic anhydride addition amount of 2 to 70% by weight, which comprises reacting a liquid polymer having a molecular weight of 150 to 5,000 and a viscosity of 2 to 50,000 cp at 30.degree. C in the presence of at least one compound, as a gelation inhibitor, selected from the group consisting of imidazoles, thiazoles, metallic salts of mercaptothiazoles, urea derivatives, naphthylamines, nitrosamines, iron, iron compounds and specific halogen compounds, said liquid polymer being selected from the group consisting of liquid polybutadienes, liquid polyisoprenes and liquid copolymers comprising units of butadiene or isoprene and units of at least one compound selected from the group consisting of other diolefins, olefins and aromatic vinyl compounds.Type: GrantFiled: October 19, 1976Date of Patent: March 21, 1978Assignee: Sumitomo Chemical Company, LimitedInventors: Seimei Yasui, Takao Oshima
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Patent number: 4056670Abstract: Anaerobic curing compositions useful as anaerobic adhesives and sealants are described. These compositions comprise mixtures of polymerizable acrylic and substituted acrylic monomers together with a catalyst comprising an alpha-amino sulfone compound.Type: GrantFiled: November 3, 1975Date of Patent: November 1, 1977Assignee: National Starch and Chemical CorporationInventor: Martin M. Skoultchi
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Patent number: 4054480Abstract: Anaerobic curing compositions useful as anaerobic adhesives and sealants are described. These compositions comprise mixtures of polymerizable acrylic and substituted acrylic monomers together with a catalyst comprising an alpha-hydroxy sulfone compound. As an alternate embodiment of the invention, certain organic peroxides may be added to the composition to further prolong the shelf life thereof and to increase the shear strength of the resulting adhesive bond.Type: GrantFiled: May 22, 1975Date of Patent: October 18, 1977Assignee: National Starch and Chemical CorporationInventors: Martin M. Skoultchi, Dilip K. Ray-Chaudhuri, William J. Catena
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Patent number: 4013824Abstract: Initial depletion of organosulfur molecular weight regulator during initial polymerization conversion in emulsion polymerization systems employing coagitated mixtures of emulsifiers and organosulfur molecular weight regulators is reduced by coagitating in the presence of an additive which is monomer-soluble diluent a portion of polymerizable monomer prior to use of the coagitated admixture in the emulsion polymerization systems.Type: GrantFiled: November 18, 1974Date of Patent: March 22, 1977Assignee: Phillips Petroleum CompanyInventors: Carl A. Uraneck, John E. Burleigh
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Patent number: 4005055Abstract: Anaerobic curing compositions are provided which comprise an alpha-olefinically substituted aminimide and an organic hydroperoxide as a sealant composition having extended shelf life in the presence of oxygen and being rapidly polymerizable upon the exclusion of oxygen.Type: GrantFiled: May 22, 1975Date of Patent: January 25, 1977Assignee: Skeist Laboratories, IncorporatedInventors: Jerry Miron, Manilal Savla, Irving Skeist
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Patent number: 3984609Abstract: A process for instantaneous peptization of polychloroprene latexes made by polymerizing in the presence of sulfur and a modifying agent such as iodoform or a dialkylxanthogen disulfide, by adding a suitable thiol at a pH at least equal to 9.Type: GrantFiled: April 29, 1974Date of Patent: October 5, 1976Assignee: DistugilInventors: Paul Branlard, Jacques Modiano