Organic Compound Contains Sulfur And Nitrogen Atoms Patents (Class 525/351)
-
Patent number: 4614771Abstract: A process for making a diene copolymer rubber having improved rebound, which comprises polymerizing a conjugated diene monomer with an aromatic vinyl monomer in a hydrocarbon solvent in the presence of an alkali metal and/or alkaline earth metal initiator, to form a dienyl-metal terminated, conjugated diene-aromatic vinyl copolymer rubber, and thereafter reacting the copolymer rubber with at least one reactant selected from the group consisting of aminoaldehydes, aminoketones, aminothioaldehydes and aminothioketones.Type: GrantFiled: October 22, 1985Date of Patent: September 30, 1986Assignee: Nippon Zeon Co., Ltd.Inventors: Hiroyuki Watanabe, Kohkichi Noguchi, Toshio Kase, Shuichi Akita
-
Patent number: 4605706Abstract: A chelate resin having a functional group of the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each independently hydrogen, alkyl, aminoalkyl, phenyl or a substituted group thereof and another functional group of the formula: ##STR2## wherein R.sub.3 is amino, alkylamino, polyethylenepolyamino, hydrazo, hydrazino, hydrazono, amidino, guanidino, semicarbazide or a substituted group thereof, has an excellent adsorption capacity for metal ions.Type: GrantFiled: May 28, 1985Date of Patent: August 12, 1986Assignee: Sumitomo Chemical Company, LimitedInventors: Yushin Kataoka, Masaaki Matsuda, Kenji Ochi, Masahiro Aoi
-
Patent number: 4604417Abstract: There are disclosed polymerizable thioester synergists which have utility in enhancing the antioxidative activity of phenolic and amine stabilizers. The invention is also concerned with the thioesters themselves, their use in oxidizable organics, their combination with polymerizable and/or conventional antioxidants, and with polymers which contain these thioesters as physical admixtures or segmeric units of the polymer.Type: GrantFiled: December 10, 1984Date of Patent: August 5, 1986Assignee: The Goodyear Tire & Rubber CompanyInventor: Kirkwood S. Cottman
-
Patent number: 4604431Abstract: The invention comprises a method of preparing copolymers of acrylamido sulfonic acids which comprises converting to acrylamido sulfonic groups at least 5 mole % of the acrylic acid or methacrylic acid groups in a polymer which contains at least 5 mole % of these monomers in its structures by reacting an aqueous solution of the acrylic acid or methacrylic acid polymer with an amino sulfonic acid under pressure at a temperature of at least 70.degree. C. for a period of time sufficient to convert at least 5 mole % of the acrylic acid or methacrylic acid groups in the polymer to amido sulfonic acid groups corresponding to the starting amino sulfonic acid.Type: GrantFiled: November 22, 1985Date of Patent: August 5, 1986Assignee: Nalco Chemical CompanyInventors: Dodd W. Fong, Claudia C. Pierce, David A. Grattan
-
Patent number: 4575541Abstract: This invention relates to polymers of the formula ##STR1## wherein Z is polystyrene, or a copolymer comprising styrene and a comonomer or comonomers.Y is selected from the group comprising nitro, acyl, carboxyl, formyl, cyano, carbalkoxy, sulfone, carboxyamide, or halogen; andR is hydroxy, aryloxy, alkoxy, halogen, formyloxy, acyloxy, cyano, amino, substituted amino, carboxyamine, thiol, alkylthio, arylthio, aralkylthio or acylthio, useful in peptide synthesis.Type: GrantFiled: May 24, 1984Date of Patent: March 11, 1986Assignee: Research CorporationInventors: Louis A. Carpino, Beri Cohen
-
Patent number: 4575531Abstract: Sulfur vulcanizable partially hydrolyzed ethylene-vinyl acetate terpolymers and processes for producing these products are disclosed.Type: GrantFiled: November 7, 1984Date of Patent: March 11, 1986Assignee: National Distillers and Chemical CorporationInventors: John M. Hoyt, Steven D. Blazey
-
Patent number: 4525539Abstract: Vulcanizable nitrile-containing perfluoroelastomer polymers can be cured by reaction with certain bis(aminophenols) or tetraamines.Type: GrantFiled: December 2, 1982Date of Patent: June 25, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventor: Andrew E. Feiring
-
Patent number: 4500685Abstract: A surface modifying composition for vulcanized rubber comprises a halogen-releasable halogenoid and a waxy substance having a melting point of not more than 100.degree. C. and is non-solvent type. In the surface modification of vulcanized rubber, the surface coated with the surface modifying composition is heated at 60.degree.-150.degree. C.Type: GrantFiled: October 25, 1983Date of Patent: February 19, 1985Assignee: Bridgestone Tire Company LimitedInventors: Masaki Ogawa, Yasuro Shiomura
-
Patent number: 4492686Abstract: A cosmetic makeup composition contains in an appropriate cosmetically acceptable vehicle or carrier a colored pigment resulting from the salification reaction of a polymer having salified primary or secondary amine functions or quaternized tertiary amine functions and an acid dye, in free acid form or as a salt thereof, the acid dye being fixed on said polymer in an amount of at least 10 weight percent of the stoichiometric quantity.The compositions include lip rouges, cheek rouges, foundation creams and nail enamels.Type: GrantFiled: October 13, 1982Date of Patent: January 8, 1985Assignee: Societe Anonyme dite: L'OrealInventors: Michel Guillon, Jean Mondet, Christos Papantoniou, Claudine Vandenbossche
-
Patent number: 4490557Abstract: Ethylidene bisformamide is prepared by reacting, at elevated temperatures, dry acetaldehyde and formamide in the presence of an acidic catalyst and an ammonia scavenger such as acetic anhydride. The bisformamide is recovered as a bottoms products of high speed low residence time distillation techniques, e.g., wiped film evaporation. The resulting ethylidene bisformamide may be cracked to N-vinylformamide, which monomer is useful in the preparation of active polymers and copolymers, including poly(vinylformamide) which can be hydrolyzed to poly(vinylamine) salts by contact with acid. These amine salts can then be converted to the free amines, which are precursors of polymeric dyes and pharmaceuticals.Type: GrantFiled: November 5, 1981Date of Patent: December 25, 1984Assignee: DynapolInventors: Daniel J. Dawson, Kenneth M. Otteson
-
Patent number: 4477618Abstract: A high solids, organic solvent based, sprayable coating composition which is capable of acid catalyzed crosslinking is composed of an active hydrogen-containing resin, a curing agent present externally and/or internally as a part of the active hydrogen-containing resin, and a catalytic amount of a non-ionic ester of a sulfonic acid. The sulfonic acid ester is represented by the following structural formula: ##STR1## wherein: Z is a radical selected from the group consisting of amino and an organic radical, said organic radical being connected to the sulfur atom by a carbon atom; ##STR2## C.sub.3 -C.sub.20 cycloalkyl; and R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 are independently hydrogen or an organic radical. These groups can be particularly described as follows:R.sub.1 is hydrogen, carboalkoxy, C.sub.3 -C.sub.20 alkyl, C.sub.6 -C.sub.18 aryl, or C.sub.3 -C.sub.20 cycloalkyl;R.sub.2 is hydrogen, carboalkoxy, C.sub.3 -C.sub.20 alkyl, C.sub.6 -C.sub.18 aryl, or C.sub.3 -C.sub.20 cycloalkyl;R.sub.Type: GrantFiled: September 29, 1982Date of Patent: October 16, 1984Assignee: PPG Industries, Inc.Inventors: Debra L. Singer, Gregory J. McCollum, Rostyslaw Dowbenko, Roger M. Christenson, Michael M. Chau, Wen-Hsuan Chang
-
Patent number: 4455409Abstract: A method is provided for making sulfonated aromatic organic polymers having aminoorganomercaptan groups attached to backbone sulfonyl radicals by covalent nitrogen-sulfur linkages. These sulfonated aromatic organic polymers can be used as an ion-exchange resin for making bisphenols.Type: GrantFiled: December 2, 1982Date of Patent: June 19, 1984Assignee: General Electric CompanyInventors: Gary R. Faler, John R. Campbell
-
Patent number: 4454274Abstract: A high solids, organic solvent based, sprayable coating composition which is capable of acid catalyzed crosslinking is composed of an active hydrogen-containing resin, a curing agent present externally and/or internally as a part of the active hydrogen-containing resin; and a catalytic amount of a non-ionic ester of a sulfonic acid. The sulfonic acid ester is represented by the following structural formulas: ##STR1## wherein: Z is a radical selected from the group consisting of amino and an organic radical, said organic radical being connected to the sulfur atom by a carbon atom;W is C.sub.1 -C.sub.18 alkylene, C.sub.2 -C.sub.18 alkenylene;V is C.sub.1 -C.sub.18 alkylene, C.sub.1 -C.sub.18 hydroxyl substituted alkylene, C.sub.2 -C.sub.18 alkenylene, C.sub.2 -C.sub.18 hydroxyl substituted alkenylene; andR.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 are independently hydrogen or an organic radical.Type: GrantFiled: September 29, 1982Date of Patent: June 12, 1984Assignee: PPG Industries, Inc.Inventors: Debra L. Singer, Gregory J. McCollum, Rostyslaw Dowbenko, Roger M. Christenson
-
Patent number: 4435545Abstract: Novel organic polymers have a chain carrying active groups, a hydroxyl, alkoxy, halogen, thiol or sulphide group or a second active group being attached as a substituent to a carbon which is in the alpha position with respect to that carrying the first active group. The preparation of these polymers is advantageously effected using polymers carrying epoxide bridges, which are opened by the action of an active cosmetological or other active compound. These polymers are particularly suitable for the protection of the skin against solar radiation, as creams or gels for the skin and for the hair and/or as pigments.Type: GrantFiled: November 2, 1981Date of Patent: March 6, 1984Assignee: Societe Nationale Elf Aquitaine (Production)Inventors: Claude Favie, Michel Mercadier
-
Patent number: 4433113Abstract: New polymers are described which are copolymers of olefins and tetraalkyl ammonium carboxylates. They are insoluble in water, soluble in hydrocarbons and are antistatic agents.Type: GrantFiled: August 10, 1981Date of Patent: February 21, 1984Inventors: Fred E. Woodward, Alice Hudson
-
Patent number: 4433114Abstract: Improved tack, green strength or non-black filler interaction capability are realized in a treated diene rubber. The method of treating diene rubber to achieve the improvements is shown, together with a composition in which maleamic acid or derivatives of maleamic acid are combined with sulfur or an organic sulfur compound capable of generating a thiyl radical.Type: GrantFiled: May 20, 1982Date of Patent: February 21, 1984Assignee: Monsanto CompanyInventors: Aubert Y. Coran, Chester D. Trivette, Jr.
-
Patent number: 4413999Abstract: The invention provides amidoxime derivatives of the general formula ##STR1## wherein R.sub.1 is an alkyl group of 1 to 8 carbon atoms, phenyl, a heterocyclic ring structure of 5 to 8 atoms containing one or more nitrogen or oxygen atoms or combinations thereof or a bicyclic condensed ring system optionally containing at least one heterocyclic ring which groups may each be optionally substituted. R.sub.2 is a mono or bicyclic heterocyclic radical containing at least two nitrogen atoms which radical is also optionally substituted. R.sub.3 and R.sub.4 are independently H, or an alkyl of 1 to 4 carbon atoms or one, but not both, is ##STR2## and the other, H, wherein R.sub.5 or R.sub.6 are alkyls of 2 to 5 carbon atoms optionally substituted by R.sub.1, or a phenyl optionally substituted by R.sub.1 or R.sub.5 or R.sub.6 is combined with R.sub.1 to jointly form cyclic imidoximes or imidedioximes.Type: GrantFiled: March 5, 1982Date of Patent: November 8, 1983Assignee: Research Products Rehovot Ltd.Inventors: Charles Linder, Gershon Aviv
-
Patent number: 4408012Abstract: A novel chelate polymer having the formula: ##STR1## wherein R is a 2-thiazolyl or 2-benzothiazolyl group, is produced by reacting polymaleimide, formaldehyde, and m-aminobenzoic acid in the presence of a solvent, then coupling the resultant reaction product with a diazotized compound of 2-aminothiazole or 2-aminobenzothiazole. The novel polymers thus produced are useful as metal indicators or pH indicators.Type: GrantFiled: March 1, 1982Date of Patent: October 4, 1983Assignees: Agnency of Industrial Science and Technology, Ministry of International Trade and IndustryInventors: Setsuko Furuya, Shunji Ohnishi, Masao Kato
-
Patent number: 4391953Abstract: Substituted or unsubstituted N,N'-dithiobisformanilide compounds are disclosed, where the substituents can be lower alkyl, lower alkoxy, halogen or CF.sub.3. The compounds are vulcanizing agents for diene rubbers. Diene rubber compounds containing a cross-linking amount of the above compounds are also disclosed.Type: GrantFiled: September 8, 1981Date of Patent: July 5, 1983Assignee: Monsanto CompanyInventor: Eiichi Morita
-
Patent number: 4375357Abstract: A family of polymeric black colorants is disclosed. The subject colorants are composed of an organic polymer backbone comprised of a plurality of aromatic rings from which depend via azo groups a plurality of chromophore units having the structure ##STR1## wherein M is hydrogen or preferably a cation. These polymeric colorants are water-soluble, and noncrystalline and form dyes and inks that are fast to paper stock.Type: GrantFiled: June 9, 1981Date of Patent: March 1, 1983Assignee: DynapolInventors: Robert E. Wingard, Jr., Steve Y. W. Ng, Sally A. Swanson
-
Patent number: 4340695Abstract: A vulcanization system consisting of(a) 20-50 parts by weight of sulphur or 20-50 parts by weight of a sulphur donor,(b) 20-50 parts by weight of an accelerator of the mercapto or sulphenamide group,(c) 0-10 parts by weight of a conventional accelerator additive, and(d) 20-50 parts by weight of a compound corresponding to the general formula (i): ##STR1## wherein R.sub.1 to R.sub.5 are identical or different and denote hydrogen, halogen, nitro, cyano, CF.sub.3, CCl.sub.3, carboxyl, an alkoxy group containing 1-4 C-atoms in the alkyl part, or a C.sub.1 -C.sub.4 alkyl group but the groups R.sub.1 -R.sub.5 must not all be hydrogen;x represents 1-4, preferably 2-3,y represents 0 or 1, andZ denotes divalent groups such as ##STR2## C.sub.1 -C.sub.12 alkylene, C.sub.4 -C.sub.12 cycloalkylene, C.sub.6 -C.sub.10 arylene or C.sub.8 -C.sub.12 arylalkylene, andR.sub.6 denotes the group corresponding to the formula: ##STR3## wherein R.sub.1 -R.sub.5 have the meaning indicated above and may all be hydrogen;C.sub.1 -C.sub.Type: GrantFiled: April 8, 1981Date of Patent: July 20, 1982Assignee: Bayer AktiengesellschaftInventors: Rudiger Schubart, Ulrich Eholzer, Theo Kempermann, Ernst Roos
-
Patent number: 4317265Abstract: Electrically conductive elastomers are prepared by adding polyfunctional tertiary amine compounds to halogenated polymers. The resulting elastomers have resistivities in the range that makes them suitable as conductors for many electrical and electrostatic applications. These ranges are generally in the area of 1.times.10.sup.3 to 1.times.10.sup.7 ohm cm as measured by the methods of ASTM 257. A preferred elastomer is prepared by adding a polyfunctional tertiary amine such as N,N,N',N' tetramethyl-1,3-butanediamine to polychloroprene prior to vulcanizing under conventional vulcanization conditions. The resulting elastomers possess useful electrical conductivity, as well as the desirable physical and chemical properties of conventional elastomers. A roller for current-assisted printing or electrostatic-assisted printing having an external surface layer comprised of the novel electrically conductive elastomer is described.Type: GrantFiled: January 31, 1980Date of Patent: March 2, 1982Assignee: American Roller CompanyInventors: Thomas G. Chase, Steven Poniatowski
-
Patent number: 4317893Abstract: A method for the recovery of oil from an oil-containing subterranean formation by waterflooding employing as an injection medium an aqueous solution of an anionic polymeric surfactant formed by reacting a polymer including succinic anhydride moieties with a primary amine to provide a polymeric reaction product in which at least 20 mol percent of the anhydride moieties have been converted, by reaction with said amine, to succinimide or succinamide groups. The polymeric anionic surfactants of the invention exhibit good physical and chemical stability, are shear stable, are effective in maintaining the salt stability of other surfactants (such as petroleum sulfonates) and also function as viscosifiers, even in the presence of significant concentrations of divalent metal ions.Type: GrantFiled: October 24, 1980Date of Patent: March 2, 1982Assignee: Mobil Oil CorporationInventors: Catherine S. H. Chen, Edward W. Sheppard
-
Patent number: 4316972Abstract: A photographic element comprises a support having thereon a layer containing a novel polymer comprising a recurring unit having the formula: ##STR1## said element comprising a source of metal ions. The elements are useful in diffusion transfer processes, and particularly useful with chelating dyes or dye-forming materials to provide a metallized dye image.Type: GrantFiled: May 15, 1980Date of Patent: February 23, 1982Assignee: Eastman Kodak CompanyInventor: Karel L. Petrak
-
Patent number: 4306992Abstract: A mixture comprising sulphur or a sulphur donor, a mercapto- or sulfenamide vulcanization accelerator, a compound containing a thiophenyl radical and a standard auxiliary accelerator is used as a vulcanization system for natural or synthetic rubber.Type: GrantFiled: May 5, 1980Date of Patent: December 22, 1981Assignee: Bayer AktiengesellschaftInventors: Rudiger Schubart, Ulrich Eholzer, Theo Kempermann, Ernst Roos
-
Patent number: 4303560Abstract: A rubbery polymer composition comprises a crosslinked copolymer comprising the following components.Type I15 to 40 wt. parts of a vinyl carboxylate having the formula (I); 60 to 85 wt. parts of an alkoxyalkyl acrylate having the formula (II); 0 to 15 wt. parts of ethylene; (100 wt. parts of a total of said three components); 0 to 5 wt. parts of the components having the formula (III), (IV) or (V):Type II15 to 55 wt. parts of a vinyl carboxylate having the formula (I); 5 to 20 wt. parts of ethylene; an alkyl acrylate having the formula (II'); an alkoxyalkyl acrylate having the formula (II) (100 wt. parts of a total of said four components and more than 0.8 of a ratio of the alkoxyalkyl acrylate (II) to the alkyl acrylate (II') by weight); 0 to 5 wt. parts of the components having the formula (III), (IV) or (V):(I): RCOO--CH.dbd.CH.sub.2wherein R represents a C.sub.1-4 alkyl group.(II): CH.sub.2 .dbd.CHCOO--R.sub.1 --O--R.sub.2wherein R.sub.1 represents a C.sub.1-4 alkylene group; and R.sub.2 represents a C.Type: GrantFiled: November 16, 1979Date of Patent: December 1, 1981Assignee: Denki Kagaku Kogyo Kabushiki KaishaInventors: Kohki Takahashi, Takeo Kondoh, Masao Koga, Kenichiro Nishiwaki
-
Patent number: 4298714Abstract: The present invention relates to modified polyvinylchloride, wherein part of the chlorine atoms are replaced by groups of the formula --S--CH.sub.2 --CH.sub.2 --R--(CH.sub.2 --CH.sub.2 --R).sub.n --Alk, wherein R is selected from oxygen, sulfur and --NH--, where R may also designate a bond, where Alk designates an alkyl group of up to 14 carbon atoms, and where n is zero or an integer of from 1 to 100, and to a process for the production of such modified polyvinylchloride polymers which comprises reacting an aqueous emulsion or suspension of polyvinylchloride in the presence of a solvent adapted to cause swelling of the PVC particles with a compound of the formula Alk--(CH.sub.2 --CH.sub.2 --R).sub.n --R--CH.sub.2 --CH.sub.2 --SH, wherein Alk, R and n are as defined above.Type: GrantFiled: December 16, 1980Date of Patent: November 3, 1981Assignee: Yeda Research & Development Co. Ltd.Inventors: Gideon Levin, David Vofsi
-
Patent number: 4291141Abstract: Vulcanizable rubber compositions are described which are inhibited from premature vulcanization by N-(sulfenyl) methacrylamides.Type: GrantFiled: July 30, 1979Date of Patent: September 22, 1981Assignee: Monsanto CompanyInventor: Eiichi Morita
-
Patent number: 4287320Abstract: A diorgano sulfur oxide is included in a curable vinylidene fluoride elastomer formulation to provide desirable curing characteristics.Type: GrantFiled: February 19, 1980Date of Patent: September 1, 1981Assignee: Minnesota Mining and Manufacturing CompanyInventor: Robert E. Kolb
-
Patent number: 4284517Abstract: A method for the recovery of oil from an oil-containing subterranean formation by waterflooding employing as an injection medium an aqueous solution of an anionic polymeric surfactant formed by reacting a polymer including succinic anhydride moieties with a primary amine to provide a polymeric reaction product in which at least 20 mol percent of the anhydride moieties have been converted, by reaction with said amine, to succinimide or succinamide groups. The polymeric anionic surfactants of the invention exhibit good physical and chemical stability, are shear stable, are effective in maintaining the salt stability of other surfactants (such as petroleum sulfonates) and also function as viscosifiers, even in the presence of significant concentrations of divalent metal ions.Type: GrantFiled: October 26, 1978Date of Patent: August 18, 1981Assignee: Mobil Oil CorporationInventors: Catherine S. H. Chen, Edward W. Sheppard
-
Patent number: 4283508Abstract: Alkyl thiosalicylate prevulcanization inhibitors having a pleasant odor are described.Type: GrantFiled: May 22, 1980Date of Patent: August 11, 1981Assignee: Monsanto CompanyInventor: Otto W. Maender
-
Patent number: 4273897Abstract: A vulcanizable composition comprising a bromobutyl rubber and a specific amino acid.Type: GrantFiled: May 23, 1979Date of Patent: June 16, 1981Assignee: Sanyo Trading Co., Ltd.Inventor: Masao Onizawa
-
Patent number: 4271277Abstract: Thermosetting powder coatings comprising reactive polymers containing reactive carboxyl, hydroxyl, and/or amide groups and adapted to be cross-linked with aminoplast resins are substantially improved by the inclusion of at least about 0.25% by weight of a heat curing catalyst. The catalyst is an amine salt of cyclohexyl sulfamic acid.Type: GrantFiled: October 9, 1979Date of Patent: June 2, 1981Assignee: SCM CorporationInventor: Robert F. Golownia
-
Patent number: 4271050Abstract: Vulcanizable rubber compositions are described which are inhibited from premature vulcanization by activated methylene di(thioethers) in which the adjacent activating groups are either carbonyl or cyano. Novel compounds are also described.Type: GrantFiled: November 23, 1979Date of Patent: June 2, 1981Assignee: Monsanto CompanyInventors: Otto W. Maender, Eiichi Morita
-
Patent number: 4265628Abstract: A process for the preparation of fire retardant formed bodies such as yarns and films of acrylic polymers is disclosed. The process comprises subjecting the polymer to sulphuration and subjecting the sulphurated polymer to a basic treatment by means of an alkali metal hydroxide, such as sodium hydroxide, whereby the polymer molecule acquires a cyclic structure.Type: GrantFiled: July 27, 1979Date of Patent: May 5, 1981Assignee: SNIA Viscosa Societa' Nazionale IndustriaInventors: Pier P. Rossi, Aldo Tempesti, Aldo Filippi
-
Patent number: 4259223Abstract: Microspheres are produced by cobalt gamma radiation initiated polymerization of a dilute aqueous vinyl pyridine solution. Addition of cross-linking agent provides higher surface area beads. Addition of monomers such as hydroxyethylmethacrylate acrylamide or methacrylamide increases hydrophilic properties and surface area of the beads. High surface area catalytic supports are formed in the presence of controlled pore glass substrate.Type: GrantFiled: October 2, 1978Date of Patent: March 31, 1981Assignee: California Institute of TechnologyInventors: Alan Rembaum, Amitava Gupta, Willi Volksen
-
Patent number: 4255539Abstract: Sulfur-modified polychloroprene in alkaline aqueous emulsion is prepared by incorporating one or more organic polysulfides which act as peptizing agents during the polymerization of the chloroprene. The sulfur-modified polychloroprenes obtained have stable viscosities.Type: GrantFiled: October 31, 1979Date of Patent: March 10, 1981Assignee: DistugilInventors: Paul Branlard, Jean-Pierre Merle
-
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
-
Patent number: 4248805Abstract: Vulcanizable rubber compositions are described which are inhibited from premature vulcanization by inhibitors consisting of a class of N, N'-disulfenyl phthalamides of the formula ##STR1## in which X is phenylene.Type: GrantFiled: April 26, 1979Date of Patent: February 3, 1981Assignee: Monsanto CompanyInventors: Alfred B. Sullivan, Raleigh W. Wise
-
Patent number: 4248985Abstract: A sulfur-curable acrylic rubber composition is provided which comprises [I] 100 parts of an acrylic rubber resulting from the copolymerization in the presence of a radical initiator of (1) 30 to 89.5% by weight of at least one alkyl acrylate with the alkyl group containing 1 to 8 carbon atoms, (2) 0.5 to 10% by weight of at least one monomer of the general formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, and R.sub.2 and R.sub.3, independently from each other, represent an alkyl group containing 1 to 3 carbon atoms, (3) 10 to 60% by weight of at least one alkoxyalkyl acrylate with the alkoxy group containing 1 to 4 carbon atoms and the alkylene group containing 1 to 4 carbon atoms, and 0 to 30% by weight of at least one of monovinyl and monovinylidene unsaturated compounds other than the said compounds; and [II] 1 to 5 parts by weight of a metal compound, and [III] 0.2 to 5 parts by weight, as sulfur, of at least one of sulfur and sulfur-containing organic compounds.Type: GrantFiled: March 27, 1979Date of Patent: February 3, 1981Assignee: Nippon Zeon Co., Ltd.Inventors: Tetsu Ohishi, Kohichi Handa, Haruo Ueno
-
Patent number: 4228265Abstract: A process for producing a sulfur-curable acrylic rubber is provided which comprises radical-copolymerizing (1) an alkyl acrylate with (2) an alkenyl acrylate or methacrylate, or radical-copolymerizing (1) an alkyl acrylate, (2) an alkenyl acrylate or methacrylate, (3) an alkoxyalkyl acrylate and optionally (4) acrylonitrile. These acrylic rubbers can be cured at a rate as fast as those for curing diene-type rubbers, and the cured products exhibit superior properties without long heat-treatment after curing.Type: GrantFiled: March 27, 1979Date of Patent: October 14, 1980Assignee: Nippon Zeon Co. Ltd.Inventors: Tetsu Ohishi, Kohichi Handa, Haruo Ueno
-
Patent number: 4225682Abstract: Elemental sulfur modified polychloroprene rubbers having improved Mooney viscosity stability are prepared by blending a sol and a gel in a weight ratio of sol:gel of from 98:2 to 60:40 based on solids, wherein the gel contains 0.5 to 5 weight percent of a cross-linking agent comonomer, a trihydric ester of the general formula ##STR1## wherein x is 0 or an integer of from 1 to 4 and is preferably 0; y is 0 or an integer of from 1 to 4 and preferably 1; R.sub.1, R.sub.2 and R.sub.3 represent hydrogen or an alkyl radical with from 1 to 4 carbon atoms and is preferably CH.sub.3.Type: GrantFiled: May 22, 1978Date of Patent: September 30, 1980Assignee: Denka Chemical CorporationInventor: Hubert R. O'Neal
-
Patent number: 4202952Abstract: A vulcanizable composition comprising a bromobutyl rubber and a specific amino acid.Type: GrantFiled: November 14, 1977Date of Patent: May 13, 1980Assignee: Sanyo Trading Co., Ltd.Inventor: Masao Onizawa
-
Patent number: 4175073Abstract: A novel class of reactive derivatives of polymers containing HS-groups is disclosed in which derivatives a number of the HS-groups are converted to a disulphide group of the formula -S-S-A-Z, where A is a hydrocarbon residue having 1-10 carbon atoms and Z is a group ##STR1## or acid addition salts of the last mentioned group, where n is 2 or 3, R.sup.1 is 2-pyridyl, 5-nitro-2-pyridyl or 4-pyridyl and R.sup.2 is methyl or ethyl. The novel derivatives may be used, for example, as thiolating agents or as carriers for e.g. enzymes or other proteins etc.Type: GrantFiled: March 2, 1978Date of Patent: November 20, 1979Assignee: Pharmacia Fine Chemicals ABInventors: Jan P. E. Carlsson, Rolf E. A. V. Axen, Hakan N. Y. Drevin, Goran E. S. Lindgren
-
Uncured chlorinated polyethylene composition with hexamethylphosphoric triamide and mercaptotriazine
Patent number: 4174341Abstract: A cured or uncured chlorinated polyethylene composition comprising(A) chlorinated polyethylene,(B) a complex formed between hexamethylphosphoric triamide and a member selected from the group consisting of carboxylic acids, cyanuric acid, substituted or unsubstituted phenols, alcohols and metal salts, and(C) a member selected from the group consisting of (a) a mercaptotriazine, (b) a thiuram disulfide and (c) sulfur. And a process for curing chlorinated polyethylene, which comprises heating it in the presence of (B) and (C) at a temperature of about 100.degree. to about 200.degree. C.Type: GrantFiled: May 5, 1976Date of Patent: November 13, 1979Assignee: Osaka Soda Co. Ltd.Inventors: Yasuo Matoba, Yoshio Kise, Nobuo Yamada, Akira Hashimoto, Tetsuya Nakata -
Patent number: 4173694Abstract: The defects (i.e., the slow vulcanization speeds and the mold corroding tendency) of a known curable composition comprising (1) a polychloroprene rubber and (2) a di- or tri-mercapto-s-triazine compound can be remedied by a novel composition comprising the known composition and (3) a specified polyalkylene polyamine. The novel composition comprises 100 parts by weight of (1), 0.1 to 3 parts by weight of (2) and 0.1 to 2 parts by weight of (3).Type: GrantFiled: July 11, 1978Date of Patent: November 6, 1979Assignee: Nippon Zeon Co., Ltd.Inventor: Masaaki Inagami
-
Patent number: RE30362Abstract: Poly(vinylamine salts of mineral acids are produced by reacting acetaldehyde and acetamide at a mole ratio of 1:2-4 with acid catalyst, cracking the ethylidene-bisacetamide which results into vinylacetamide, polymerizing the vinylacetamide with a free radical polymerization catalyst, and hydrolyzing the poly(vinylacetamide) to the desired amine salts by contacting the polyvinylacetamide with an aqueous solution of the corresponding mineral acid. This product may be converted to the free amine, which in turn may function as a precursor in the manufacture of certain polymeric dyes and colorants.Type: GrantFiled: April 17, 1979Date of Patent: August 5, 1980Assignee: DynapolInventors: Richard D. Gless, Jr., Daniel J. Dawson, Robert E. Wingard, Jr.
-
Patent number: T102101Abstract: A hydrophilic polymer shaped article adapted for use as a soft contact lens is treated to provide at least on the surfaces thereof a modified, less hydrophilic polymeric structure inhibiting penetration by bacteria and proteins, whereby development of clouding and discoloration of the lens material during use is significantly retarded. Modification of the lens surfaces is effected by treatment of the lenses, either unhydrated or in a partially hydrated state, at a temperature ranging from room temperature to 100.degree. C. and for a time period of 1 to 24 hours, with a water-soluble mono- or poly-carboxylic acid selected from alpha-amino acids, such as arginine, cysteine, glycine and like acids, aliphatic dicarboxylic acids or aromatic dicarboxylic and tricarboxylic acids, such as malonic, maleic, glutaric, citraionic, itaconic acid and the like.Type: GrantFiled: September 28, 1981Date of Patent: August 3, 1982Inventors: Nancy J. Drake, Charles J. Hora
-
Patent number: RE31322Abstract: A process for producing a sulfur-curable acrylic rubber is provided which comprises radical-copolymerizing (1) an alkyl acrylate with (2) an alkenyl acrylate or methacrylate, or radical-copolymerizing (1) an alkyl acrylate, (2) an alkenyl acrylate or methacrylate, (3) an alkoxyalkyl acrylate and optionally (4) acrylonitrile. These acrylic rubbers can be cured at a rate as fast as those for curing diene-type rubbers, and the cured products exhibit superior properties without long heat-treatment after curing.Type: GrantFiled: September 23, 1981Date of Patent: July 26, 1983Assignee: Nippon Zeon Co. Ltd.Inventors: Tetsu Ohishi, Kohichi Handa, Haruo Ueno