Nitrogen Organic Compound Containing Patents (Class 252/405)
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Patent number: 6284936Abstract: It has been discovered that the polymerization of vinyl aromatic compounds, such as styrene, may be inhibited by the addition of a composition that contains an alkyl-dihydroxyarene, a hydrogen transfer agent, and a stable nitroxide. In another, preferred embodiment of the invention, these three components are blended in an organic amine.Type: GrantFiled: December 21, 2000Date of Patent: September 4, 2001Assignee: Baker Hughes IncorporatedInventor: Muslim D. Shahid
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Patent number: 6280657Abstract: Concentrated solutions of biocides are provided, particularly for silicone caulks, which comprise a biocide, sufficient levels of a ketoxime as a solvent for the biocide, and optional non-volatile carrier liquid.Type: GrantFiled: May 27, 1998Date of Patent: August 28, 2001Assignee: Rohm and Haas CompanyInventor: Thomas C. McEntee
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Patent number: 6255484Abstract: A cyanurate compound having three oxetane ring groups and represented by the general formula (1): wherein R1 represents a member selected from the group consisting of a hydrogen atom and alkyl groups having 1 to 6 carbon atoms, is useful as a photosetting monomer or thermosetting monomer, and thus is used, together with a hardening agent, for example, a polycarboxylic anhydride and a catalyst, for example, an amine, a carboxylic acid metal salt or a protonic acid, to provide an organic hardening composition usable for producing electronic materials, for example, resists.Type: GrantFiled: September 27, 2000Date of Patent: July 3, 2001Assignee: Ube Industries, Ltd.Inventors: Mikito Kashima, Yumiki Noda, Harutoshi Hoshino, Toshikazu Machida
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Patent number: 6232469Abstract: A novel 4-acylamino-2,2,6,6-tetramethylpiperidine derivatives and antioxidants comprising the same. The 4-acylamino-2,2,6,6-tetramethylpiperidine derivatives are represented by formula (A): wherein R1 represents a hydrogen atom, a hydroxyl group, an oxyradical group, an aliphatic group, an acyl group, an aliphatic oxy group or an acyloxy group; and R2 represents an aliphatic group having at least 3 carbon atoms and at least two hydroxyl groups.Type: GrantFiled: September 21, 1999Date of Patent: May 15, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Seto, Takayoshi Kamio
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Patent number: 6204311Abstract: An optical resin prepared by curing a polymerizable composition comprising a (thio)epoxy compound having at least one intramolecular disulfide bond exhibits a considerably high refractive index while maintaining good optical properties and a high Abbe number. In addition, the above polymerizable composition to which is added primary and/or secondary amines as an yellowing inhibitor in a proportion of 0.001 to 0.5 of the total molar number of NH2 and NH groups in the amines to the total molar number of thioepoxy and epoxy groups in the (thio)epoxy compound having at least one intramolecular disulfide bond, can provide a transparent resin in which yellowing and reduction in heat resistance associated therewith are adequately prevented while maintaining a high refractive index.Type: GrantFiled: March 8, 1999Date of Patent: March 20, 2001Assignee: Mitsui Chemicals, Inc.Inventors: Hiroyuki Morijiri, Seiichi Kobayashi, Koju Okazaki, Chitoshi Shimakawa, Akinori Ryu, Yoshinobu Kanemura
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Patent number: 6194493Abstract: The present invention relates to the use of compounds of the formula (I) where the substituents are as defined in the description as a stabilizer for organic material against the harmful effect of light, oxygen and heat.Type: GrantFiled: September 3, 1998Date of Patent: February 27, 2001Assignee: Clariant GmbHInventors: Thomas Stährfeldt, Mathias Mehrer
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Patent number: 6184262Abstract: Polyether and polyester poloyols and polyurethane foams are stabilized by including therein stabilizers selected from (1) diphenylaminomethylbenzotriazole substituted by alkyl or phenylalkyl groups or (2) synergistic compositions consisting of (a) benzotriazole or alkylbenzotriazole and (b) secondary aromatic amine substituted by alkyl or phenylalkyl groups wherein the benzotriazole and amine is present in critical ratios. Furthermore, a method is disclosed for preparation of polyurethane foams from polyols and polyisocyanate that have reduced discoloration due to scorch by adding diphenylamino methylbenzotriazole or compositions of benzotriazole and secondary aromatic amine as scorch inhibitors to the polyol, foaming the polyol and curing.Type: GrantFiled: September 22, 1997Date of Patent: February 6, 2001Assignee: R. T. Vanderbilt Company, Inc.Inventors: Richard A. Suhoza, Thomas J. Karol, James J. Talbot
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Patent number: 6143205Abstract: Mixtures contain(A) vinyl-containing monomers, and(B) an effective amount of a mixture inhibiting the premature polymerization of the vinyl-containing monomers during the purification or distillation and containing(i) from 0.05 to 4.5% by weight, based on the total mixture (B), of at least one N-oxyl compound of a secondary amine which carries no hydrogen atoms on the .alpha.-carbon atoms and(ii)from 99.95 to 95.5% by weight, based on the total mixture (B), of at least one nitro compound,and a mixture (B) is used for inhibiting the premature polymerization of monomers.Type: GrantFiled: August 3, 1998Date of Patent: November 7, 2000Assignee: BASF AktiengesellschaftInventors: Heinz Friedrich Sutoris, Alexander Aumuller, Hermann Uhr
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Patent number: 6096122Abstract: Disclosed is a process for inhibiting the formation of discoloration in an aqueous composition selected from the group consisting of water-based paint, adhesive, caulk and sealant compositions, and combinations thereof, wherein said discoloration is caused by the presence of ferric ion or cupric ion together with pyrithione in said composition. The process comprises contacting the composition with a discoloration-inhibiting amount of a zinc compound selected from the group consisting of zinc salts of organic acids, zinc salts of inorganic acids, zinc hydroxide, zinc oxide, and combinations thereof. Also disclosed is an aqueous antimicrobial composition protected against discoloration attributable to the presence of ferric ion or cupric ion therein.Type: GrantFiled: December 16, 1998Date of Patent: August 1, 2000Assignee: Arch Chemicals, Inc.Inventors: Paul S. Kappock, Craig Waldron
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Patent number: 6056965Abstract: The invention relates to 2-mercaptoimidazole derivatives substituted in the 4(or 5)-position.These 2-mercaptoimidazole derivatives are of the general formula (I) below: ##STR1## wherein: R.sub.1, R.sub.2, R.sub.5, R.sub.7 and R.sub.8 are hydrogen, a lower alkyl, an aralkyl or a substituted aralkyl, wherein at least one of R.sub.1 and R.sub.2 is hydrogen;R.sub.3 is (CH.sub.2).sub.n COR.sub.4, --(CH.sub.2).sub.n N.sup.+ (R.sub.5 R.sub.6 R.sub.7).X.sup.- or --CH.sub.2 CH(COR.sub.4)N.sup.+ (R.sub.5 R.sub.6 R.sub.7).X.sup.- ;R.sub.4 is OR.sub.8, --NHR.sub.5, --.alpha.-amino acid,--NHCH.sub.2 CH.sub.2 SO.sub.3.sup.-.Y.sup.+, --NHCH.sub.2 CH.sub.2 CO.sub.2.sup.- Y.sup.+, --OCH.sub.2 CH.sub.2 N.sup.+ (CH.sub.3).sub.3.X.sup.- ; ##STR2## n=1 or 2; X.sup.31 is an anion of an acid acceptable in cosmetics, pharmaceuticals or foodstuffs; andY.sup.+ is a cation of a base acceptable in cosmetics, pharmaceuticals or foodstuffs.Type: GrantFiled: September 15, 1997Date of Patent: May 2, 2000Assignee: Oxis Isle of Man, LimitedInventors: Jean-Claude Y. Yadan, Jinzhu Xu, Marc E. Moutet, Jean R. Chaudiere
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Patent number: 6046263Abstract: Products are described which are obtainable by reacting compounds of formula I with compounds of formula IIa or/and IIb and IIIa or/and IIIb and additionally, where appropriate, IV ##STR1## wherein the general symbols are as defined in claim 1, the compound of formula I being, for example, methyl 3-(3',5'-di-tert-butyl-4'-hydroxyphenyl)propionate, the compound of formula IIa being, for example, diethanolamine, the compound of formula IIIa being, for example, methyl oleate, and the compound of formula IV being, for example, sulfur. The cited products can be used as liquid antioxidants in organic materials.Type: GrantFiled: May 19, 1998Date of Patent: April 4, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Michael Rasberger, Samuel Evans, Paul Dubs, Stephan Allenbach
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Patent number: 6024894Abstract: Synergistic composition and method of use are disclosed. The compositions comprise a quinone methide derivative and a hydroxylamine compound. These compositions demonstrate synergism at inhibiting the polymerization of a vinyl aromatic monomer. Preferably the quinone methide derivative is 2,6-di-tert-butyl-4-benzylidene-cyclo-2,5-dienone and the hydroxylamine compound is N,N-bis(hydroxypropyl)hydroxylamine.Type: GrantFiled: March 25, 1998Date of Patent: February 15, 2000Assignee: BetzDearborn Inc.Inventor: Graciela B. Arhancet
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Patent number: 5980783Abstract: Stabilizer mixture comprising, for example, a compound of the formula ##STR1## and, for example, a compound of the formula ##STR2##Type: GrantFiled: April 5, 1996Date of Patent: November 9, 1999Assignee: Ciba Specialty Chemicals CorporationInventor: Fran.cedilla.ois Gugumus
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Patent number: 5976417Abstract: A composition, suitable for stabilizing a polymeric composition against the effects of light, comprisinga) an N-acylated 2,2,6,6-tetraalkylpiperidinyl group (hereinafter N-acylated HALS) containing compound; andb) an N-oxy-subst. 2,2,6,6-tetraalkylpiperidinyl group (hereinafter N-oxy-substituted HALS) containing compound.A further aspect of the invention relates to a composition, suitable for stabilizing a polymeric composition against the effects of light, comprisinga) an N-acylated 2,2,6,6-tetraalkylpiperidinyl-group-containing compound in which a spiro group is attached in the 4-position (hereinafter defined as component i); andb) an N-acylated 2,2,6,6-tetraalkylpiperidinyl-group-containing compound in which in the 4-position no spiro group is present (hereinafter defined as component ii).These compounds are suitable as light stabilizers in acid catalyzed lacquer system.Type: GrantFiled: March 30, 1995Date of Patent: November 2, 1999Assignee: Clariant Finance (BVI) LimitedInventors: Karl Bechtold, Gilbert Ligner, Rainer Wolf
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Patent number: 5976887Abstract: A novel electrochemiluminescent (ECL) reaction between diaminoaromatic ligands and soluble metal ions, specifically reactions between aminoaromatic ligands, such as 2,4-diaminotoluene (2,4,DAT), 3,4-diaminotoluene (3,4,DAT) and 2,3-diaminonaphthalene (2,3-DAN) and metal ions such as Au(I), Cu(II), Cr(VI), Fe(III), Ru)III), Se(IV) and V(V). Such reactions form the basis for ECL assays in detection of various substances, such as the reactants. The ECL interaction between these substances can also form the basis for binding methods in the detection of other substances, such as nucleic acids and antibodies wherein the metal ion ligand ECL complex may be used as a label. The ECL assays are considered useful for carrying out field and laboratory analyses for the detection of TNT breakdown products and toxic metals in wastewater streams, soil, and ground water supplies.Type: GrantFiled: June 2, 1997Date of Patent: November 2, 1999Assignee: Applied Research Associates, Inc.Inventors: John G. Bruno, Jimmy C. Cornette
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Patent number: 5976397Abstract: A photofading inhibitor compound comprising a singlet oxygen quenching moiety having a quenching rate of 1.times.10.sup.6 L mol.sup.-1 S.sup.-1 or faster and a cationic moiety.Type: GrantFiled: September 26, 1997Date of Patent: November 2, 1999Assignee: Lever Brothers CompanyInventor: Ian Paul Wilkes
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Patent number: 5972248Abstract: The present invention relates to novel stabilizers of the formula (I) ##STR1## in which the substituents have the meaning defined in the description. These novel stabilizers are particularly suitable for stabilizing organic material, such as plastics, oils, paints and coatings, against degradation by light, radiation, heat and oxygen.Type: GrantFiled: October 7, 1997Date of Patent: October 26, 1999Assignee: Clariant GmbHInventors: Thomas Stahrfeldt, Josef Wiedemann, Matthias Zah
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Patent number: 5919400Abstract: This invention relates to a stabilized isothiazolone solution and more particularly, to a stabilized isothiazolone solution comprising isothiazolone expressed by the following formula (I), stabilizer expressed by the following formula (II), and organic solvent diffusing these compounds effectively: ##STR1## In these formulae, n, R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 have the same definitions as defined in the detailed description of this application, respectively.Type: GrantFiled: October 2, 1997Date of Patent: July 6, 1999Assignee: Sunkyong Industries Co., Ltd.Inventors: Seung Hwan Kim, Jin Soo Lim, Jin Man Kim, Myung Ho Cho
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Patent number: 5883154Abstract: Disclosed is a process for inhibiting the formation of discoloration in an aqueous composition selected from the group consisting of water-based paint, adhesive, caulk and sealant compositions, and combinations thereof, wherein said discoloration is caused by the presence of ferric ion or cupric ion together with pyrithione in said composition. The process comprises contacting the composition with a discoloration-inhibiting amount of a zinc compound selected from the group consisting of zinc salts of organic acids, zinc salts of inorganic acids, zinc hydroxide, zinc oxide, and combinations thereof. Also disclosed is an aqueous antimicrobial composition protected against discoloration attributable to the presence of ferric ion or cupric ion therein.Type: GrantFiled: June 25, 1996Date of Patent: March 16, 1999Assignee: Olin CorporationInventors: Paul S. Kappock, Craig Waldron
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Patent number: 5846656Abstract: A stabilizing system for stabilizing polymeric materials against ultraviolet light and thermooxidative deterioration is provided in which the stabilizing system is in pellet form. The pellet is formed from a substantially dry homogeneous mixture of at least one stabilizer and an agent which will prevent melting of the stabilizer. The stabilizer compound makes up about 50% to about 98% by weight of the mixture. The stabilizers are antioxidants (such as phosphites and hindered phenols) or hindered amine UV light stabilizers, or combinations thereof. The melt preventing agent may be a compound derived from a fatty acid or a fatty alcohol, or a fatty acid or a fatty alcohol, or a combination of fatty acids or fatty alcohols which makes up about 3%-10% of the homogeneous mixture. The fatty acids, fatty alcohols, and the compounds derived therefrom preferably have a low melting point in the range of 50.degree.-100.degree. C. and preferably between 50.degree. C. and about 80.degree. C.Type: GrantFiled: April 10, 1997Date of Patent: December 8, 1998Assignee: Ciba Specialty Chemicals CorporationInventor: Neil Dunski
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Patent number: 5821380Abstract: Novel 2-cyanoacrylic esters I ##STR1## where the radicals have the following meanings: R.sup.1 and R.sup.2 are each hydrogen or a radical having an iso- or heterocyclic ring system with at least one iso- or heteroaromatic nucleus, and at least one of the radicals R.sup.1 or R.sup.2 must be different from hydrogen,n is from 2 to 10, andX is, when n=2, a radical of the formula II ##STR2## where m is from 2 to 8, and X is, when n>2, the radical of an n-hydric aliphatic or cycloaliphatic polyol having 3-20 carbon atoms, it also being possible for a cycloaliphatic radical to contain 1 or 2 hetero atoms, and for an aliphatic radical to be interrupted by up to 8 non-adjacent oxygen atoms, sulfur atoms, imino or C.sub.1 -C.sub.4 -alkylimino groups, are used as light stabilizers.Type: GrantFiled: May 12, 1997Date of Patent: October 13, 1998Assignee: BASF AktiengesellschaftInventors: Martin Holderbaum, Alexander Aumuller, Hubert Trauth, Guido Voit, Karin Sperling, Alfred Krause
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Patent number: 5766548Abstract: Control of formation of heat stable amine salts and of corrosion in an amine solvent treating system is accomplished by introduction of N,N-diethylhydroxylamine catalyzed with hydroquinone into the system. The catalyzed N,N-diethylhydroxylamine is effective at the temperature ranges of amine treating systems to effectively reduce formation of heat stable amine salts and to inhibit corrosion. The catalyzed N,N-diethylhydroxylamine is effective in proportions including the range of about 0.5 to about 6 parts N,N-diethylhydroxylamine to 1 part hydroquinone.Type: GrantFiled: March 31, 1997Date of Patent: June 16, 1998Assignee: Cata Chem Inc.Inventor: John Soria
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Patent number: 5763262Abstract: A device for assaying biological fluids for molecules contained therein comprising a container, material situated in the container for absorbing fluid and in communication with an antibody or antigen impregnated matrix, wherein the matrix is accessible to the exterior of the container through a funnel shaped aperture in the roof of the container. Further features include a chemical drying agent associated with the container for absorbing moisture, thereby preventing inactivation of the assay reagents, and a filter situated above the antibody or antigen impregnated matrix, and in communication with the matrix through the aperture in the roof of the container. The filter removes interfering substances present in the biological fluids and provides protein blocking agents to the matrix material for decreasing the background of the assay.Type: GrantFiled: April 3, 1992Date of Patent: June 9, 1998Assignee: Quidel CorporationInventors: Siu-Yin Wong, Fon-Chiu Mia Chen, Eugene Fan
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Patent number: 5756005Abstract: The present invention provides a method of stabilizing non-halogenated 3-isothiazolones in aggressive systems with pH above 8.5. The invention also discloses compositions with pH above 8.5, containing non-halogenated 3-isothiazolones and an effective stabilizing amount of a iodine-containing stabilizer.Type: GrantFiled: October 11, 1996Date of Patent: May 26, 1998Assignee: Rohm and Haas CompanyInventors: Tirthankar Ghosh, John Robert Mattox
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Patent number: 5733479Abstract: Photoreactive compounds are synthesized from 2,5- or 2,6-dinitrobenzyl groups. Also disclosed are methods of synthesizing reactive monomers containing 2,5- or 2,6-dinitrobenzyl groups.Type: GrantFiled: July 22, 1996Date of Patent: March 31, 1998Assignee: PPG Industries, Inc.Inventors: Charles F. Kahle, II, Neil D. McMurdie, Raphael O. Kollah, Daniel E. Rardon, Gregory J. McCollum
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Patent number: 5725806Abstract: A method of stabilizing non-halogen containing 3-isothiazolone microbicides against chemical degradation by the introduction of aromatic disulfide compounds (except 2,2'-dithiobisbenzoic acid) is disclosed.Type: GrantFiled: November 8, 1996Date of Patent: March 10, 1998Assignee: Rohm and Haas CompanyInventor: Tirthankar Ghosh
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Patent number: 5714094Abstract: An antioxidant composition and a process of recovering the same from a gelatinous retentate of spent ground coffee oil, comprising from 20 to 60% wt of complex lipids and from 10 to 75% wt of carboxylic acids 5-hydroxytryptamides, in which the 5-HT are for example those of behenic, arachidic and/or lignoceric acids, and the complex lipids are phospholipids and glycolipids. This composition may be advantageously used in food products.Type: GrantFiled: July 11, 1995Date of Patent: February 3, 1998Assignee: Nestec S.A.Inventors: Raymond Bertholet, Ladislas Colarow, Andrej Kusy, Vincent Rivier
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Patent number: 5707993Abstract: The use of glycine anhydride dimethylol, also known as 1,4-bis(hydroxymethyl)-2,5-piperazinedione, comprising the formula ##STR1## to kill microorganisms present in or on a host substance and to preserve products susceptible to contamination by a variety of microorganisms is disclosed.Type: GrantFiled: May 10, 1993Date of Patent: January 13, 1998Assignee: ISP Chemicals Inc.Inventors: Philip A. Berke, William E. Rosen
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Patent number: 5695689Abstract: .alpha.- and/or .beta.-tocopherol (vitamin E), optionally in combination with octylated diphenylamines, is combined with a polyether polyol having a molecular weight of from about 300 to about 10,000 to stabilize that polyether polyol. Polyether polyols which are stabilized in this manner are particularly useful in the production of polyurethanes and polyurethane foams with a reduced tendency toward discoloration.Type: GrantFiled: September 20, 1995Date of Patent: December 9, 1997Assignee: Bayer AktiengesellschaftInventors: Pramod Gupta, Hansjurgen Rabe
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Patent number: 5684025Abstract: Liquid formulations of 1,2-benzisothiazolin-3-one, and methods for making such formulations, are disclosed. Formulations according to the invention contain about 1 to 25 percent by weight 1,2-benzisothiazolin-3-one, about 3 to 7 percent by weight of sodium hydroxide, about 3 to 63 percent by weight of water and about 20 to 65 percent by weight of one or more polyglycol triols having the formula: ##STR1## wherein nx, ny and nz are individually selected from the group consisting of 2 and 3, and, when nx, ny and nz are each equal to 2, X+Y+Z has a value equal to or less than about 13.2, and, when nx, ny and nz are each equal to 3, X+Y+Z has a value equal to or less than about 4.45. Formulations exhibiting improved low temperature stability are also prepared by blending of specified co-solvents.Type: GrantFiled: September 13, 1996Date of Patent: November 4, 1997Assignee: Huls America Inc.Inventors: Techen Tsao, Jeffery S. Hinkle
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Patent number: 5681506Abstract: A corrosion inhibiting lubricating composition comprises:(a) a synthetic ester base stock;(b) at least one aromatic amine antioxidant;(c) a neutral organic phosphate of the formula (R.sup.1 O).sub.3 PO where R.sup.1 is a tolyl, phenyl, xylyl, alkyl or cycloalkyl group, the alkyl or cycloalkyl group having up to 10 carbon atoms;(d) a saturated or unsaturated dicarboxylic acid of the general formula ##STR1## wherein x+y+z is an integer in the range from 2 to 22 inclusive and where at least one of the groups R.sub.1 to R.sub.5 is a carboxylic acid group; or a dicarboxylic acid of one of the three formulae ##STR2## (e) a straight or branched chain saturated or unsaturated monocarboxylic acid which is optionally sulphurised or an ester of such an acid; and(f) a triazole of the formula: ##STR3## or a triazole selected from 1,2,4 triazole, 1,2,3 triazole, 5-anilo-1,2,3,4-thiatriazole, 3-amino-1,2,4 triazole, 1-H-benzotriazole-1-yl-methylisocyanide, methylene-bis-benzotriazole and naphthotriazole.Type: GrantFiled: May 9, 1994Date of Patent: October 28, 1997Assignee: Castrol LimitedInventors: John William Anthony Pragnell, Andrew Jonathan Markson, Mark Anthony Edwards
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Patent number: 5679838Abstract: Monofunctional or multifunctional isocyanates having the general formulaR--(N.dbd.C.dbd.O).sub.xwhere R is any organic remainder, x.gtoreq.1,or compounds which form such isocyanates under the influence of temperature are used in elastomeric compounds to be vulcanized as inhibitors for amines.Type: GrantFiled: February 12, 1996Date of Patent: October 21, 1997Assignee: Firma Carl FreudenbergInventors: Ernst-Moritz von Arndt, Gunter Stein
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Patent number: 5658973Abstract: A composition for stabilizing synthetic polymers consisting of a blend ofa) at least a derivative of a high molecular weight polymethylpiperidine of formula (I) ##STR1## wherein the groups are as defined hereinafter, and b) at least one other HALS stabilizer wherein the groups are as defined hereinafter is disclosed. These compositions show photostabilizing and antioxidant properties.Type: GrantFiled: July 26, 1995Date of Patent: August 19, 1997Assignee: 3V Inc.Inventor: Giuseppe Raspanti
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Patent number: 5648574Abstract: Compositions and methods for inhibiting the polymerization of vinyl aromatic monomers in oxygen-free processing systems are disclosed. The compositions comprise a hydroxylamine compound, a phenylenediamine compound and a vinyl aromatic monomer. The methods comprise adding to the monomer bis-N,N'(hydroxypropyl)hydroxylamine.Type: GrantFiled: March 26, 1996Date of Patent: July 15, 1997Assignee: BetzDearborn Inc.Inventors: Graciela B. Arhancet, Inge K. Henrici
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Patent number: 5643499Abstract: Galvanic degradation under salt spray or salt water conditions in hybrid structures containing a corrosible metal and a conductive-fiber reinforced polymer matrix composite is reduced through the addition to the polymer matrix of the composite of an effective amount of an inorganic corrosion/degradation inhibitor.Type: GrantFiled: September 14, 1993Date of Patent: July 1, 1997Assignee: Cytec Technology Corp.Inventors: Jack D. Boyd, Lawrence C. Hopper
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Patent number: 5585033Abstract: Liquid formulations of 1,2-benzisothiazolin-3-one, and methods for making such formulations, are disclosed. Formulations according to the invention contain about 1 to 25 percent by weight 1,2-benzisothiazolin-3-one, about 3 to 7 percent by weight of sodium hydroxide, about 3 to 63 percent by weight of water and about 20 to 65 percent by weight of one or more polyglycol triols having the formula: ##STR1## wherein nx, ny and nz are individually selected from the group consisting of 2 and 3, and, when nx, ny and nz are each equal to 2, X+Y+Z has a value equal to or less than about 13.2, and, when nx, ny and nz are each equal to 3, X+Y+Z has a value equal to or less than about 4.45.Type: GrantFiled: July 21, 1995Date of Patent: December 17, 1996Assignee: Huls America Inc.Inventors: Techen Tsao, Jeffery S. Hinkle
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Patent number: 5575952Abstract: An article of manufacture comprising (i) a plurality of electrical conductors, each surrounded by one or more layers of a composition comprising (a) one or more polyolefins and, blended therewith, (b) a mixture containing one or more alkylhydroxyphenylalkanoyl hydrazines and one or more functionalized hindered amines; and (ii) hydrocarbon cable filler grease within the interstices between said surrounded conductors.Type: GrantFiled: October 28, 1994Date of Patent: November 19, 1996Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Michael J. Keogh, Geoffrey D. Brown
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Patent number: 5575993Abstract: Ionene polymers having biologically-active organic and/or inorganic anions are described. Methods to prepare the ionene polymers, compositions containing them and their methods of use are also described.Type: GrantFiled: August 31, 1994Date of Patent: November 19, 1996Assignee: Buckman Laboratories International, Inc.Inventors: James A. Ward, Fernando Del Corral
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Patent number: 5562863Abstract: Vinyl aromatic monomer polymerization methods utilizing a composition of 2,6-di-tert-butyl-4-methylphenol and a substituted benzoquinonediimide compound are disclosed. Preferably, the composition is employed in an amount of 1 part to 10,000 parts per million parts monomer during distillation of styrene.Type: GrantFiled: July 18, 1995Date of Patent: October 8, 1996Assignee: Betz Laboratories, Inc.Inventor: Graciela B. Arhancet
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Patent number: 5520848Abstract: A mixture containing phenothiazines which is obtainable by reacting a mixture of diphenylamines comprising______________________________________ 1 to 5% by weight a) diphenylamine of 8 to 18% by b) 4-tert-butyldiphenylamine weight of 21 to 31% by c) one or more compounds selected from weight of i) 4-tert-octyldiphenylamine ii) 4,4'-di-tert-butyldiphenylamine iii) 2,4,4'-tris-tert-butyldiphenylamine 20 to 31% by d) one or more compounds selected from weight of i) 4-tert-butyl-4'-tert-octyldiphenylamine ii) 2,2'- or 2,4'-di-tert-octyldiphenylamine iii) 2,4-di-tert-butyl-4'-tert-octyldiphenylamine, and 15 to 29% by e) the compound weight of i) 4,4'-di-tert-octyldiphenylamine, or the compounds i) 4,4'-di-tert-octyldiphenylamine and ii) 2,4-di-tert-octyl-4'-tert-butyldiphenylamine, ______________________________________with 1 to 200 mol % of elemental sulfur, in the presence of 0.Type: GrantFiled: February 7, 1995Date of Patent: May 28, 1996Assignee: Ciba-Geigy CorporationInventor: Samuel Evans
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Patent number: 5516439Abstract: A grease composition for constant velocity joints comprises (a) a base oil; (b) a lithium-containing thickener selected from the group consisting of lithium soap and lithium complex soap; (c) an organic molybdenum compound selected from the group consisting of molybdenum dithiophosphates and molybdenum dithiocarbamates; (d) a zinc dithiophosphate; and optionally (e) a metal salt selected from the group consisting of metal salts of oxidized waxes, metal salts of petroleum sulfonates and metal salts of alkyl aromatic sulfonates. The grease composition for constant velocity joints exhibits a substantially improved effect of reducing friction coefficient and a substantially improved effect of preventing the occurrence of vibration.Type: GrantFiled: July 22, 1994Date of Patent: May 14, 1996Assignee: Kyodo Yushi Co., Ltd.Inventors: Kiyoshi Takeuchi, Tuyoshi Sasaki
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Patent number: 5514535Abstract: Hydrophilic colloids, such as gelatin, which are employed in the manufacture of photographic elements are commonly treated with a hardening composition, among the most useful of which are hardening compositions containing vinyl sulfone hardening agents such as bis(vinylsulfonyl)methane. In accordance with this invention, a sulfate, such as sodium sulfate, is utilized as both an effective conductivity marker and an effective inhibitor of homopolymerization in such hardening compositions.Type: GrantFiled: May 10, 1995Date of Patent: May 7, 1996Assignee: Eastman Kodak CompanyInventors: Lewis R. Hamilton, Peter A. Marr, Philip R. Martell, Kristine F. Ohman
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Patent number: 5512213Abstract: A treatment for stabilizing an isothiazolone compound comprising adding to the compound a stabilizing amount of a metal salt, wherein the cation of the metal salt is an alkali metal, and the anion is selected from the group consisting of acetate, citrate, phosphate and borate.Type: GrantFiled: March 1, 1995Date of Patent: April 30, 1996Assignee: Betz Laboratories, Inc.Inventor: Donald J. Paterson
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Patent number: 5510547Abstract: Methods for inhibiting the polymerization of vinyl aromatic monomers in oxygen-free processing systems are disclosed. The methods comprise adding from 1 to 10,000 parts of a combination of a hydroxylamine compound and a phenylenediamine compound to the vinyl aromatic monomer.Type: GrantFiled: February 3, 1995Date of Patent: April 23, 1996Assignee: Betz Laboratories, Inc.Inventors: Graciela B. Arhancet, Inge K. Henrici
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Patent number: 5503776Abstract: An N-acylamino acid compound represented by the general formula (1):R--CO--(NH--X--CO).sub.n --OR.sup.1 (1)wherein (NH--X--CO) is an amino acid residue, X in (NX--X--CO) is variable with the kind of amino acid to be used, R--CO is a saturated or an unsaturated fatty acid residue having 6 to 24 carbon atoms, R.sup.1 is hydrogen atom, sodium atom, potassium atom, or methyl group and n is an integer in the range of from 1 to 3, indicating that at least one histidine is contained as a component amino acid is disclosed, which is obtained by causing an N-hydroxysuccinimide ester to react with an amino acid or a peptide.The compound excels in antioxidizing power, emulsifying power, antibacterial power, chelating power, infrared absorbing power, and humidity-retaining power.Type: GrantFiled: December 21, 1994Date of Patent: April 2, 1996Assignees: National Food Research Institute Ministry of Agriculture, Forestry and Fisheries, CCI CorporationInventors: Hironobu Murase, Tsutomu Kunieda, Akihiko Nagao, Junji Terao
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Patent number: 5498353Abstract: A semi-synthetic two-stroke engine oil formulation which comprises a base oil consisting of a high-viscosity mineral oil, a medium-viscosity mineral oil, a solvent and a mixture of three polyisobutylenes with different molecular weights, and appropriate detergents and dispersants. This semi-synthetic two-stroke engine has both high lubricity and high detergency, and also meets the requirements of low smoke and low exhaust system blocking.Type: GrantFiled: November 22, 1994Date of Patent: March 12, 1996Assignee: Chinese Petroleum Corp.Inventors: Ron-Sheng Lin, Chen-Yi Lin, Tsae-Shycm Lee, Chi-Chung Chen, Su-Terng Chang, Kuo-Min Wei
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Patent number: 5462589Abstract: The invention is directed to synergistic biocidal compositions that combine a copper salt and an organic biocide selected from the group of tribromophenol, its salts and chelates, and sodium-omadine, its salts and chelates. Wood treated with the preservative compositions have improved fungi resistance.Type: GrantFiled: February 22, 1994Date of Patent: October 31, 1995Assignee: Mississippi Forest Products LaboratoryInventors: Darrel D. Nicholas, Tor P. Schultz
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Patent number: 5458849Abstract: Corrosion cracking and blistering of steels in contact with refinery streams containing cyanide is inhibited or prevented by treating said stream with a reaction product or products obtained by reacting morpholine and formaldehyde. The preferred corrosion cracking and blistering inhibiting treatment product is bis--morpholinyl-- methane.Type: GrantFiled: October 22, 1993Date of Patent: October 17, 1995Assignee: Nalco Chemical CompanyInventors: Veronica K. Majestic, Manian Ramesh
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Patent number: 5439958Abstract: The present invention relates to novel piperidine compounds of the formula (I) and to their use as light stabilizers, heat stabilizers and oxidation stabilizers for organic materials.The definitions of R.sub.1, R.sub.2 and R.sub.3 are given in the text.Type: GrantFiled: July 21, 1994Date of Patent: August 8, 1995Assignee: Ciba-Geigy CorporationInventors: Roberto Scrima, Graziano Zagnoni, Michael H. Ackerman, James P. Galbo, Roland A. E. Winter
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Patent number: 5436338Abstract: Novel substituted heterocyclic formamidines are useful as ultraviolet light absorbers, the formamidines having the formula ##STR1## wherein: Ar represents a 2-thiazolyl, 2-pyridyl, 2- 4,6-dimethyl) pyrmidyl or a 4-(2-methyl)quinolyl group, and,R represents a phenyl group or an alkyl group of from one to eight carbon atoms.Type: GrantFiled: April 9, 1993Date of Patent: July 25, 1995Assignee: Givaudan-Roure CorporationInventors: Joseph A. Virgilio, Emanuel Heilweil, Isaac D. Cohen