Specified Oxygen-containing Compound Is Air, Elemental Oxygen, Or Ozone Patents (Class 525/388)
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Patent number: 4690982Abstract: Epoxidized poly(alloocimene) is described. The polymer is useful as a cross-linker (curing agent) for polyester, polyether and polyurethane coating compositions.Type: GrantFiled: November 5, 1986Date of Patent: September 1, 1987Assignee: Union Camp CorporationInventors: Richard L. Veazey, Kathryn S. Hayes
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Patent number: 4690979Abstract: Poly(alloocimene) is functionalized by reaction with an electrophile to obtain polymers useful as a film-former in a coating composition.Type: GrantFiled: November 5, 1986Date of Patent: September 1, 1987Assignee: Union Camp CorporationInventor: Richard L. Veazey
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Patent number: 4678838Abstract: Particulate hydroperoxidized poly-N-vinyl lactam containing an average of about 0.5 to 20 hydroperoxy mole equivalents per mole of poly-N-vinyl lactam, the preparation of the same by subjecting particulate poly-N-vinyl lactam to an effective amount of ozone, and the use thereof in the preparation of graft copolymers possessing a low degree of extractibles, finding utility in a wide number of fields, particularly in biomedical devices, semipermeable membranes, and as films or fibers.Type: GrantFiled: August 4, 1986Date of Patent: July 7, 1987Assignee: CIBA-GEIGY CorporationInventor: Robert A. Janssen
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Patent number: 4670520Abstract: According to the invention, a method for modifying a polyfumaric acid diester is provided. The method comprises subjecting the polyfumaric acid diester to thermal treatment to thereby obtain a polyfumarate having carboxyl groups. The polyfumaric acid diester is obtained by polymerizing a fumaric acid diester represented by the following general formula of: ##STR1## wherein R represents an alkyl group having 1 to 12 carbon atoms, a cycloalkyl group having 3 to 12 carbon atoms or an organic residue having at least one aromatic ring.Type: GrantFiled: January 28, 1986Date of Patent: June 2, 1987Assignee: Nippon Oil & Fat Co., Ltd.Inventors: Takayuki Otsu, Yoshishige Murata, Naoyuki Amaya
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Patent number: 4640960Abstract: Molecular degradation of poly(diacetylenes), in particular with production of poly(diacetylenes) having selected molecular weights, is carried out by a process in which the poly(diacetylenes), for example in solution or as solid or liquid layers, are present as a homogeneous mixture with sensitizers or sensitizer systems which can be activated chemically, those which can be activated by heat and/or those which can be activated by actinic light, and degradation of the poly(diacetylenes) is induced, in particular via free radical reactions, by appropriate activation of these sensitizers or sensitizer systems.Type: GrantFiled: November 27, 1984Date of Patent: February 3, 1987Assignee: BASF AktiengesellschaftInventors: Reinhold J. Leyrer, Gerhard Wegner, Michael Mueller
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Patent number: 4624993Abstract: A method for depolymerizing a non-thermosetting polymer is described. The method comprises the steps of heating the polymer until it is molten and then reacting the molten polymer with oxygen in the absence of a catalyst at a temperature between about 270.degree. F. and about 415.degree. F. by sparging the molten material at a flow rate of at least 2 cubic feet per minute per 1000 pounds of polymer with oxygen-containing gas bubbles having a diameter of less than about 10.0 mm. Advantages of the invention include reduced reaction temperatures, reduced reaction times, elimination of the need for a catalyst, and improved end-products. Treatment of amorphous polypropylene and mixtures of alpha-olefins and Fischer-Tropsch waxes are preferred applications of the invention.Type: GrantFiled: February 8, 1985Date of Patent: November 25, 1986Assignee: Moore and Munger, Inc.Inventor: Janardan D. Upadhyaya
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Patent number: 4614772Abstract: A process is provided for the production of low molecular weight isobutylene polymer by reacting at a temperature of from about 150.degree. to about 250.degree. C. an isobutylene-conjugated diolefin polymer with an oxygen-containing gas in an extruder.Type: GrantFiled: September 26, 1985Date of Patent: September 30, 1986Assignee: Polysar LimitedInventors: Douglas C. Edwards, Dilipkumar Padliya
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Patent number: 4611018Abstract: There is disclosed a method of processing a fluoroelastomer composition. In a preferred embodiment, the method comprises formulating a fluoroelastomer composition consisting essentially of about 50-99 weight percent of AFLAS.RTM., about 0-50 weight percent of a polymer filler, about 1-25 weight percent of dimethyl methyl phosphonate, and about 0-15 weight percent of trioctyl phosphate. The method further comprises loading the composition into either a blow molding or extruding apparatus, and then blow molding or extruding, respectively, the composition into a predetermined shape.Type: GrantFiled: December 17, 1984Date of Patent: September 9, 1986Assignee: Raychem CorporationInventor: Tibor T. Derencsenyi
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Patent number: 4602056Abstract: The invention relates to the use of grafted ethylene-vinylacetate copolymers (EVA-copolymers) for the production of hotmelt adhesives.Type: GrantFiled: May 10, 1985Date of Patent: July 22, 1986Assignee: Bayer AktiengesellschaftInventors: Helmut Waniczek, Gerhard Hohmann, Herbert Bartl, Ludwig Mott
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Patent number: 4528151Abstract: A process for producing a blow molding resin comprises pelletizing a high density polyethylene prepared by means of a highly active Ziegler catalyst, at a temperature of at least 230.degree. C. in the presence of air or oxygen so as not to change the average molecular weight and the molecular weight distribution.Type: GrantFiled: April 11, 1983Date of Patent: July 9, 1985Assignees: Nissan Chemical Industries, Ltd., Nissan Maruzen Polyethylene CompanyInventors: Yoshiho Matsuo, Ryoji Nishijima, Atsuhiko Yoshino, Takai Kawashima
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Patent number: 4508878Abstract: A process for producing a blow molding resin comprises pelletizing a high density polyethylene prepared by means of highly active Ziegler catalyst, characterized in that a small amount of a cross linking agent is added to the high density polyethylene and the pelletizing is conducted in an atmosphere containing a small amount of oxygen.Type: GrantFiled: September 8, 1983Date of Patent: April 2, 1985Assignees: Nissan Chemical Industries Ltd, Nissan Maruzen Polyethylene CompanyInventors: Yoshiho Matsuo, Atsuhiko Yoshino, Ryoji Nishijima
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Patent number: 4395512Abstract: The invention provides a novel resin composition based on a polyphenylenesulfide resin which can be molded into shaped articles imparted with remarkably improved impact strength, cracking resistance and heat shock resistance. The inventive resin composition comprises 100 parts by weight of a polyphenylenesulfide resin, from 10 to 300 parts by weight of an inorganic filler and from 1 to 100 parts by weight of a fluorine-containing rubber such as a copolymer of vinylidene fluoride and hexafluoropropylene having specified Mooney viscosity.Type: GrantFiled: May 24, 1982Date of Patent: July 26, 1983Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yoshihiro Kubota, Osamu Kuriyama
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Patent number: 4378998Abstract: Low-melting, easily processable and at the same time hard polar waxes are obtained by treating copolymers, which are composed of ethylene and 0.5 to 50% by weight of a monomer containing oxygen-containing groups and have melt indices (MFI 190/2) of between 0.01 and 400 g/10 minutes, in the molten state, dispersed in a dispersing agent which is inert towards oxygen, with oxygen or oxygen-containing gases. Preferably, ethylene/vinyl acetate copolymers are oxidized, and these oxidation products are particularly suitable as the wax component in water-based and/or organic solvent-based polishes and in pastes.Type: GrantFiled: October 29, 1980Date of Patent: April 5, 1983Assignee: Hoechst AktiengesellschaftInventors: Helmut Korbanka, Karl-Heinz Stetter, Gunther Illmann, Rolf Jacob, Otto Malitschek, Josef Strehle
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Patent number: 4338420Abstract: This invention provides a method for enhancing wettability of high density polyethylene film, that comprises subjecting said film to plasma surface treatment using oxygen or argon gas atmosphere.Type: GrantFiled: December 31, 1980Date of Patent: July 6, 1982Assignee: Mobil Oil CorporationInventor: Harold A. Arbit
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Patent number: 4336356Abstract: Partially unsaturated polymers are dissolved in a two component solvent comprising a first component having a reactivity toward ozone less than carbon-carbon double bonds but more reactive than carbon-carbon single bonds and a second component being inert toward ozone. Introduction of ozone into the solution produces ozonides which are readily cleft into difunctional aliphatic species that can be converted to e.g. carboxy-terminated or multifunctional carboxy substituted aliphatic compounds. These may be used as monomeric species in various polymerization schemes as such, in preparation of polyamides, for example, or may be reduced to aldehydes or alcohols to be used in the preparation of such polymers as polyesters, polyurethanes, poly (Schiff bases), etc. The carboxylated products may also be employed as ionomers, which are useful as surfactants. Monocarboxyl terminated polyethylene having a number average molecular weight of from about 4,000 to 100,000 are provided.Type: GrantFiled: August 25, 1980Date of Patent: June 22, 1982Assignee: Allied CorporationInventors: Shaul M. Aharoni, Dusan C. Prevorsek, George J. Schmitt, Gary A. Harpell, Lester T. C. Lee
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Patent number: 4321186Abstract: This invention relates to the preparation of foundry molds and foundry cores using a low molecular weight high vinyl poly(1,3-butadiene).Type: GrantFiled: April 9, 1980Date of Patent: March 23, 1982Assignee: Phillips Petroleum CompanyInventor: George M. Allison, III
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Patent number: 4311812Abstract: This invention relates to novel metal catalysts of a solid nonionic crosslinked resin having amine or phosphine borane adducts on or in which a reduced metal is precipitated, the method of producing said catalysts and their use in catalysis.Type: GrantFiled: November 26, 1980Date of Patent: January 19, 1982Assignee: Rohm and Haas CompanyInventor: Larry Manziek
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Patent number: 4311828Abstract: The invention provides a novel method for modifying surface properties, e.g. liability to surface bleeding of plasticizers and other additives and affinity with water, of shaped articles of polymeric materials such as vinyl chloride-based resins and silicone rubbers by the treatment with low temperature plasma of a gas. The plasma treatment in the inventive method is carried out in two steps with the first step carried out in an atmosphere of oxygen and the second step carried out in a non-oxidizing gas such as argon and carbon monoxide. Different from the conventional methods of plasma treatment which suffer from poor reproducibility and low effectiveness, the inventive method can give good reproducibility and high effectiveness presumably owing to the removal of the surface stain in the first step plasma treatment.Type: GrantFiled: July 16, 1980Date of Patent: January 19, 1982Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Kiyoshi Imada, Susumu Ueno, Yasuhide Nishina, Hirokazu Nomura
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Patent number: 4311818Abstract: New organo-lithium initiators, their synthesis, and their use. The initiators have the formula: ##STR1## in which R" is either a hydrogen atom or a methyl radical; either n is 1, in which case R'=H and m and p are integers, the sum of which is between 0 and 10 inclusive, or n is 2, R' then being an alkyl radical of 2 to 8 carbon atoms and m=p=o; and R is an alkyl radical of 1 to 4 carbon atoms.The initiators are prepared by reacting compounds of the formula; ##STR2## with an alkyl-lithium RLi in a non-polar solvent in the absence of any polar solvent or complexing agent.The initiators are used to prepare polydienes of high stereoregularity by reacting with a diene, and the polydiene is used to prepare a three-block or star copolymer by reacting with an anionically polymerizable monomer.Type: GrantFiled: July 3, 1980Date of Patent: January 19, 1982Assignees: Societe Chimique des Charbonnages-Cdf. Chimie, Agence Nationale de Valorisation de la Recherche (ANVAR)Inventors: Pierre Sigwalt, Patrick Guyot, Michel Fontanille
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Patent number: 4311811Abstract: This invention relates to novel metal catalysts of a solid nonionic crosslinked resin having amine or phosphine borane adducts on or in which a reduced metal is precipitated, the method of producing said catalysts and their use in catalysis.Type: GrantFiled: November 26, 1980Date of Patent: January 19, 1982Assignee: Rohm and Haas CompanyInventor: Larry Manziek
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Patent number: 4294943Abstract: A process for preparing a fluorine-containing polymer having carboxyl groups, which comprises subjecting a fluorine-containing polymer having sulfonyl halide groups bonded to it to an oxidation reaction at a temperature of not more than 250.degree. C.; and a process for electrolysis, using as a diaphragm a member of the polymer obtained by the above process.Type: GrantFiled: November 28, 1979Date of Patent: October 13, 1981Assignee: Tokuyama Soda Kabushiki KaishaInventors: Yasuharu Onoue, Toshikatsu Sata, Akihiko Nakahara, Junichi Itoh
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Patent number: 4264749Abstract: Organo-lithium compounds of the formula: ##STR1## wherein R is an alkyl group of up to 5 carbon atoms, R' is either hydrogen or an alkyl group of up to 5 carbon atoms and n is an integer from 2 to 10. These bifunctional organo-lithium compounds are prepared without the use of any polar or complexing agent and are useful as polymerization initiators for the production of block copolymers.Type: GrantFiled: July 31, 1979Date of Patent: April 28, 1981Assignee: Societe Chimique des CharbonnagesInventors: Pierre Sigwalt, Patrick Guyot, Michel Fontanille, Jean-Pierre Vairon
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Patent number: 4226958Abstract: A process is described for the preparation of a polymer having a recurring unit of the formula: ##STR1## where R is hydrogen or methyl, C.sub.n H.sub.2n is lower-alkylene, R.sub.1 and R.sub.2 are aryl or lower-alkyl, and x is 0 or 1. A polymer having a recurring unit of the formula: ##STR2## where X is chloro, bromo, iodo, chloroalkyl, bromoalkyl or iodoalkyl, is reacted with the appropriate aryl or alkyl chloride or bromide and arsenic trichloride, arsenic tribromide or arsenic trioxide in the presence of sodium, magnesium, or lithium metal. The resulting polymer is an intermediate in the preparation, by oxidation, of the corresponding As-oxide which polymer is useful as a catalyst for the conversion of isocyanates to the corresponding carbodiimides.Type: GrantFiled: August 27, 1979Date of Patent: October 7, 1980Assignee: The Upjohn CompanyInventors: Curtis P. Smith, George H. Temme
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Patent number: 4223111Abstract: A process is described for the preparation of a polymer having a recurring unit of the formula: ##STR1## where R is hydrogen or methyl, C.sub.n H.sub.2n is lower-alkylene, R.sub.1 and R.sub.2 are aryl and x is 0 or 1. A polymer having a recurring unit of the formula: ##STR2## where X is chloro, bromo, iodo, chloroalkyl, bromoalkyl or iodoalkyl, is reacted with a triarylarsine in the presence of lithium or sodium-potassium alloy. The resulting polymer is an intermediate in the preparation, by oxidation, of the corresponding As-oxide. The latter is useful as a catalyst for the conversion of isocyanates to the corresponding carbodiimides.Type: GrantFiled: August 27, 1979Date of Patent: September 16, 1980Assignee: The Upjohn CompanyInventors: Curtis P. Smith, George H. Temme
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Patent number: 4220754Abstract: The discoloration of polyvinyl chloride that usually occurs when a slurry containing this polymer is heated at a temperature above 70.degree. C. to reduce its monomer content to less than 10 ppm is minimized or prevented by carrying out the heating step in the presence of an oxidizing agent.Type: GrantFiled: May 25, 1976Date of Patent: September 2, 1980Assignee: Tenneco Chemicals, Inc.Inventor: Martin L. Feldman
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Patent number: 4200711Abstract: A process for preparing a fluorine-containing polymer having carboxyl groups, which comprises subjecting a fluorine-containing polymer having sulfonyl halide groups bonded to it to an oxidation reaction at a temperature of not more than 250.degree. C.; and a process for electrolysis, using as a diaphragm a member of the polymer obtained by the above process.Type: GrantFiled: April 21, 1978Date of Patent: April 29, 1980Assignee: Tokuyama Soda Kabushiki KaishaInventors: Yasuharu Onoue, Toshikatsu Sata, Akihiko Nakahara, Junichi Itoh
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Patent number: 4182806Abstract: Process for the manufacture of a salt of a poly-alpha-hydroxyacrylic acid, which salt contains monomeric units of the formula: ##STR1## in which R.sub.1 and R.sub.2 independently represent hydrogen or an alkyl group containing from 1 to 3 carbon atoms, and in which M represents the cationic radical resulting from the dissociation of a base, by reacting, with the base, in the presence of water, a solid polylactone derived from the corresponding poly-alpha-hydroxyacrylic acid, in which process the reaction is carried out in a liquid medium containing water and a diluent, the diluent being one which does not dissolve the polylactone and the salt produced and being present in an amount such that the polylactone and salt produced do not dissolve in the medium. In the process, an oxidizing agent is added to the liquid medium.Type: GrantFiled: April 18, 1978Date of Patent: January 8, 1980Assignee: Solvay & Cie.Inventors: Noel Vanlautem, Julien Mulders
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Patent number: 4179550Abstract: A method for preparing a novel polymer which comprises polymerizing a polymerizable material selected from the group consisting of(a) substituted or unsubstituted dicyclopentadiene;(b) a cationically polymerizable unsaturated hydrocarbon-containing fraction obtained by distilling a cracking or reforming product of a petroleum and having a boiling point in the range of -20.degree. C. to 280.degree. C.;(c) a cationically polymerizable vinyl aromatic hydrocarbon having 8 to 10 carbon atoms;(d) a mixture of two or three of ingredients (a), (b) and (c); and(e) a mixture of any one of ingredients (a) to (d)with a cationically polymerizable unsaturated aliphatic hydrocarbon having 4 to 10 carbon atoms in the presence of a cationic polymerization catalyst; wherein a high-boiling product having a boiling point of at least about 150.degree. C. and an oxygen content of at least 0.Type: GrantFiled: April 25, 1978Date of Patent: December 18, 1979Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Ryoichi Miyamoto, Minoru Morita