Hetero Ring Contains Sulfur And At Least One Diverse Hetero Atom Patents (Class 524/83)
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Patent number: 6403679Abstract: Granular form of a mixture comprising: (a) a nickel-quencher corresponding to [2,2′-thio-bis(4-t-octyl-phenolate)-n-butylamine Nickel (II)]; (b) a 2-hydroxy-4-alkyloxybenzophenone corresponding to 2-hydroxy-4-n-octyloxybenzophenone; characterized in that it has two diffraction lines at angles 2&thgr;=17.593 and 2&thgr;=22.023 in the X-Ray diffraction spectrum from powders. The above granular form can be used as a light stabilizer for agricultural films based on polyolefins or olefinic copolymers.Type: GrantFiled: August 23, 2000Date of Patent: June 11, 2002Assignee: Great Lakes Chemical (Europe) GmbHInventors: Carlo Neri, Luciano Pallini, Giovanni Sandre
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Patent number: 6384113Abstract: This invention relates generally to a new class of benzocycle-substituted pyrimidines and triazines and the use thereof to protect coatings, polymers and organic compounds against degradation by environmental forces, inclusive of ultraviolet light, actinic radiation, oxidation, moisture, atmospheric pollutants and combinations thereof. The new class of benzocycle-substituted pyrimidines and triazines comprises a benzocycle attached to the triazine or pyrimidine ring, and preferably an additional aryl ring containing a hydroxyl group, either free or blocked to form a latent stabilizer, ortho- to the point of attachment to the triazine or pyrimidine ring.Type: GrantFiled: August 10, 2001Date of Patent: May 7, 2002Assignee: Cytec Technology Corp.Inventors: Ram B. Gupta, Dennis J. Jakiela, Robert G. Fischer
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Publication number: 20020049267Abstract: An organohybrid-based damping material for controlling unwanted vibration and noise, an organic damping improver exhibiting piezoelectric, dielectric and electroconductive effects, and their producing methods, are provided. The damping material comprises a polymer matrix having a polar side chain and a damping improver composed of a compound containing basic nitrogen and a phenol-based compound. The damping material shows an excellent damping properties, alleviates the functional deterioration, and is applicable to different application temperature regions and wide areas.Type: ApplicationFiled: April 2, 2001Publication date: April 25, 2002Inventors: Cheng Zhang, Tadashi Miura, Masao Sumita
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Patent number: 6350798Abstract: A thermoplastic molding composition comprising aromatic polycarbonate, saccharine and a compound having at least one ester group in its structure is disclosed. The inventive composition is characterized in its improved stability and hence suitable for the preparation of stable films, compact discs and sheets.Type: GrantFiled: December 9, 1999Date of Patent: February 26, 2002Assignee: Bayer AktiengesellschaftInventors: Wolfgang Ebert, Ralf Hufen, Wilfried Haese
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Publication number: 20010012866Abstract: The present invention relates to vulcanizable rubber mixes which, apart from the rubbers, contain O,O-bis-(alkyl)-dithiophosphoric acid polysulfides and primary and/or secondary amines, which are characterized in that they may be vulcanized without release of nitrosamines with a high crosslink density and a high proportion of short sulfur bridges.Type: ApplicationFiled: January 18, 2001Publication date: August 9, 2001Inventors: Thomas Fruh, Ludger Heiliger, Thomas Kleiner, Hermann-Josef Weidenhaupt, Robert-Hans Schuster, Joachim Kiesekamp
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Publication number: 20010007884Abstract: Disclosed is polyvinyl chloride, polyvinylidene chloride, polycarbonate, polyethylene, polypropylene, polyamide, polyimide, polyether, polyester, or polyvinyl acetate containing about 0.005 to about 10 phr of a stabilizer.Type: ApplicationFiled: January 17, 2001Publication date: July 12, 2001Inventor: Qi Wang
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Patent number: 6248701Abstract: A combination of sulfur-free azoles, preferably benzotriazole and tolyltriazole, with sulfur-containing azoles, preferably 2-mercaptobenzothiazole or mercaptobenzimidazole, prevents discoloration, staining, or corrosion of metal surfaces being coated with an organic protective coating from aqueous dispersion or solution.Type: GrantFiled: May 23, 1996Date of Patent: June 19, 2001Assignee: Henkel CorporationInventor: Richard J. Church
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Patent number: 6239199Abstract: Disclosed are a resin composition for inhibiting polymerization of a vinyl compound, which includes a resin and 0.1 to 30% by weight based on the resin, of a polymerization inhibitor for the vinyl compound; a resin molding for inhibiting polymerization of a vinyl compound, and a packing for inhibiting polymerization of a vinyl compound in a distillation tower, the resin molding and packing each including this resin composition. Also disclosed are methods for inhibiting polymerization of a vinyl compound, which include contacting the vinyl compound with the resin composition; these methods include processes of inhibiting polymerization of a vinyl compound in a distillation tower, by contacting the vinyl compound in the distillation tower with packing therein which includes this resin composition.Type: GrantFiled: October 14, 1998Date of Patent: May 29, 2001Assignee: Mitsubishi Gas Chemical Company, Inc.Inventor: Kazumi Tanaka
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Patent number: 6191247Abstract: A polysiloxane composition comprising (A) a polysiloxane having a group represented by the formula (I): ≡Si—OR (I) wherein, R is a C1 to C18 substituted or unsubstituted monovalent hydrocarbon group or ether bond containing an organic group; and (B) at least 1 ppm of (a) a compound having an N, P, S, Sn, or As component or (b) an acetylene alcohol and a rubber composition containing the same. Specific polysiloxanes (A) contain both formula (I): ≡Si—OR as well as Si—H.Type: GrantFiled: April 4, 1997Date of Patent: February 20, 2001Assignee: The Yokohama Rubber Co., Ltd.Inventors: Kazunori Ishikawa, Fumito Yatsuyanagi, Tetsuji Kawazura
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Patent number: 6083651Abstract: A phenothiazine or phenoxazine derivative represented by the following general formula (1), a charge-transporting material comprising the derivative, and an electrophotographic photoreceptor containing the charge-transporting material are disclosed. The charge-transporting material has good solubility in binder polymers, satisfactory sensitivity, and a low residual potential.Type: GrantFiled: September 25, 1998Date of Patent: July 4, 2000Assignee: Takasago International CorporationInventors: Tohru Kobayashi, Yoshimasa Matsushima, Hiroshi Sugiyama, Toshimitsu Hagiwara
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Patent number: 6005032Abstract: The use of a 2-(C.sub.3-5 -alkyl)-BIT or 2-aralkyl-BIT such as 2-phenylethyl-BIT as a fungicide for plastics materials. 2-n-Butyl-BIT is preferred.Type: GrantFiled: June 17, 1997Date of Patent: December 21, 1999Assignee: Zeneca LimitedInventor: Peter William Austin
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Patent number: 5985958Abstract: A light-curing composite material is described which is characterized by a content of anaerobic stabilizer and/or stable organic radicals and which has a reduced light sensitivity and an improved vacuum stability and is therefore suitable in particular as a dental filling material.Type: GrantFiled: August 14, 1998Date of Patent: November 16, 1999Assignee: Ivoclar AGInventors: Norbert Moszner, Volker Rheinberger
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Patent number: 5973064Abstract: This invention relates to colored polyester thermoplastics comprised of polymeric colorants having poly(oxyalkylene) moieties and/or anionic dye/quatenary ammonium substantially inorganic salt-free colorant complexes mixed with diluents selected from the group consisting essentially of sorbitan (C.sub.8 -C.sub.22) monoesters, ethoxylated sorbitan (C.sub.8 -C.sub.22) monoesters, mixtures thereof of sorbitan (C.sub.8 -C.sub.22) monoesters and ethoxylated sorbitan (C.sub.8 -C.sub.22) monoesters, ethoxylated nonyl-phenol ethers, ethoxylated dodecylphenol ethers, mixtures thereof of said ethoxylated nonyl-phenol ethers and ethoxylated dodecylphenol ethers, and mixtures of (i) sorbitan (C.sub.8 -C.sub.22) monoesters or ethoxylated sorbitan (C.sub.8 -C.sub.22) monoesters and (ii) ethoxylated nonyl-phenol ethers or ethoxylated dodecylphenol ethers.Type: GrantFiled: July 7, 1998Date of Patent: October 26, 1999Assignee: Miliken Research CorporationInventors: X. Edward Zhao, Todd David Danielson, Eugene Kyle Stephenson, Elizabeth M. Irwin
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Patent number: 5948838Abstract: The present invention relates to a polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin; 0.01 to 5 parts by weight of a compound containing oxymethylene unit, a compound containing oxymethylene unit having substituent or a cyclic ether compound having substituent.Type: GrantFiled: February 25, 1997Date of Patent: September 7, 1999Assignee: Mitsubishi Engineering-Plastics Corp.Inventors: Shinya Miya, Satoshi Kanayama
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Patent number: 5939493Abstract: A rubber composition comprising 100 parts by weight of a rubber component which comprises at least one type of rubber selected from the group consisting of natural rubber and diene synthetic rubbers, 0.1 to 10 parts by weight of at least one type of metal dithiophosphate represented by the following general formula, optionally 15 to 85 parts by weight of a reinforcing inorganic filler, and optionally a specific tertiary amine compound in an amount of 0.5 to 15% by weight of the amount of the reinforcing inorganic filler is provided.General formula ##STR1## wherein R.sup.1 and R.sup.3 each independently represents an alkyl group or a cycloalkyl group, M represents an antimony atom, a zinc atom, a copper atom, or an iron atom, and n represents a valency of M.The rubber composition of the present invention exhibits excellent resistance to heat or resistance to heat aging (particularly excellent resistance to hardening and excellent fracture properties).Type: GrantFiled: December 24, 1997Date of Patent: August 17, 1999Assignee: Bridgestone CorporationInventor: Masahiro Hojo
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Patent number: 5938934Abstract: Dendritic polymer based networks consisting of well-defined hydrophilic and oleophilic (i.e., hydrophobic) domains, are capable of performing as nanoscopic sponges for electrophilic guest moieties such as (i) inorganic and organic cations; (ii) charged or polarized molecules containing electrophilic constituent atoms or atomic groups; and (iii) other electrophilic organic, inorganic, or organometallic species. As a result of such performance, the networks yield novel nanoscopic organo-inorganic composites which contain organosilicon units as an integral part of their covalently bonded matrix.Type: GrantFiled: January 13, 1998Date of Patent: August 17, 1999Assignees: Dow Corning Corporation, Dendritech Inc.Inventors: Lajos Balogh, Agnes M. deLeuze-Jallouli, Petar R. Dvornic, Michael J. Owen, Susan Victoria Perz, Ralph Spindler
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Patent number: 5919846Abstract: A novel colorant compound is provided which is the addition product of an organic chromophore having at least one reactive hydroxyl or amine substituent, a polyisocyanate, and a carboxylic acid, sulfonic acid, or salt of either thereof. The polyisocyanate, added in a molar excess relative to the number of such reactive substituents, reacts with the reactive hydroxyl or amine groups to provide terminal isocyanate groups. Subsequently, the carboxylic acid or salt thereof, also added in an amount excessive in relation to the number of terminal isocyanate groups, reacts therewith to from urethane moieties on the colorant. Such a compound provides excellent ink compositions upon dilution and are very soluble within all the standard ink diluents. Furthermore, such colorants provide good jettability, waterfastness, washfastness, and the like, within ink-jet applications on various types of printing substrates.Type: GrantFiled: February 19, 1998Date of Patent: July 6, 1999Assignee: Milliken Research CorporationInventors: Raj Batlaw, John W. Miley
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Patent number: 5912286Abstract: A composition comprises a leachable organic compound distributed throughout a polymer matrix formed by reacting a fluoroepoxy compound of the formula: ##STR1## wherein x is an integer from 0 to 12, with a silicone amine curing agent of the formula: ##STR2## where n is the average degree of polymerization of the silicone amine curing agent and is 1 or greater. The leaching rate of the leachable organic compound is controlled by selecting the value of x in the fluoroepoxy compound and the value of n in the silicone amine curing agent. The composition may be used as a coating for protecting underwater substrates from fouling by marine organisms.Type: GrantFiled: August 29, 1997Date of Patent: June 15, 1999Assignee: The United States of America as represented by the Secretary of the NavyInventors: James R. Griffith, Stephen L. Snyder
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Patent number: 5856384Abstract: Devices and materials containing certain stable, polycyclic aromatic compounds exhibit sensible, second order nonlinear optical effects. In general, useful polycyclic aromatic compounds possess electron-donating and electron-withdrawing chemical functionality but no center of inversion symmetry on either the molecular or crystalline unit cell level.Type: GrantFiled: September 13, 1994Date of Patent: January 5, 1999Assignee: The Trustees of the University of PennsylvaniaInventors: Anthony F. Garito, Shinji Yamada, Anna Panackal
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Patent number: 5847025Abstract: A light-curing composite material is described which is characterized by a content of anaerobic stabilizer and/or stable organic radicals and which has a reduced light sensitivity and an improved vacuum stability and is therefore suitable in particular as a dental filling material.Type: GrantFiled: January 9, 1997Date of Patent: December 8, 1998Assignee: Ivoclar AGInventors: Norbert Moszner, Volker Rheinberger
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Patent number: 5834080Abstract: Controllably conductive polymer compositions may be used in electrophotographic imaging developing systems, such as scavengeless or hybrid scavengeless systems or liquid image development systems. The conductive polymer compositions includes a charge-transporting material (particularly a charge-transporting, thiophene-containing polymer or an inert elastomeric polymer, such as a butadiene- or isoprene-based copolymer or an aromatic polyether-based polyurethane elastomer, that additionally comprises charge transport molecules) and a dopant capable of accepting electrons from the charge-transporting material. The invention also relates to an electrophotographic printing machine, a developing apparatus, and a coated transport member, an intermediate transfer belt, and a hybrid compliant photoreceptor comprising a composition of the invention.Type: GrantFiled: October 18, 1994Date of Patent: November 10, 1998Assignee: Xerox CorporationInventors: Joseph Mort, Bing R. Hsieh, Mary A. Machonkin, Joseph Mammino, John F. Yanus
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Patent number: 5773491Abstract: The object of the present invention is polycarbonate molding compositions containing polycarbonates, stabilizers of the general formula (I)R.sub.1 --X--CZ--Y--R.sub.2and optionally polypropylene glycols. The object of the present invention is also use of these molding compositions to produce items for medical applications.Type: GrantFiled: March 7, 1996Date of Patent: June 30, 1998Assignee: Bayer AGInventors: Wolfgang Ebert, Ralf Hufen, Ru digerart, Gerhard Fennhoff
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Patent number: 5760110Abstract: The invention relates to a process for the preparation of a rubber composition involving thermomechanically mixing in a preparatory mixing step at least one sulfur vulcanizable elastomer, a particulate filler and an unsymmetrical organosilicon disulfide compound of the formula ##STR1## wherein Z is selected from the group consisting of: ##STR2## wherein R.sup.2 may be the same or different and is independently selected from the group consisting of an alkyl group having 1 to 4 carbons and phenyl; R.sup.3 may be the same of different and is independently selected from the group consisting of alkoxy groups having 1 to 8 carbon atoms and cycloalkoxy groups with 5 to 8 carbon atoms; and R.sup.1 is selected from the group consisting of a substituted or unsubstituted alkylene group having a total of 1 to 18 carbon atoms and a substituted or unsubstituted arylene group having a total of 6 to 12 carbon atoms.Type: GrantFiled: February 18, 1997Date of Patent: June 2, 1998Assignee: The Goodyear Tire & Rubber CompanyInventors: Rene Jean Zimmer, Uwe Ernst Frank, Friedrich Visel, Thierry Florent Edme Materne, Giorgio Agostini
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Patent number: 5756691Abstract: Water-insoluble azo colorant based on N-acetoacetyldehydrothiotoluidine Compound of the formula (I) ##STR1## in which R.sub.1 and R.sub.2 independently of one another are a hydrogen atom, C.sub.1 -C.sub.4 -alkyl, C.sub.5 -C.sub.6 -cycloalkyl, a benzyl group, an unsubstituted phenyl group or a substituted phenyl group with 1 to 5, preferably 1 to 3, substituents from the group consisting of C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro, cyano, hydroxyl, CF.sub.3, CONH.sub.2, CONH(C.sub.5 -C.sub.6 -cycloalkyl), CON(C.sub.1 -C.sub.4 -alkyl).sub.2, CONH(C.sub.1 -C.sub.4 -alkyl), COO(C.sub.1 -C.sub.4 -alkyl), COO(C.sub.5 -C.sub.6 -cycloalkyl) and CONH(phenyl),R.sub.3 is a hydrogen atom, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, halogen, nitro, cyano, hydroxyl, CF.sub.3, COO(C.sub.1 -C.sub.4 -alkyl) or COO(C.sub.5 -C.sub.6 -cycloalkyl) andn is 1 or 2.Type: GrantFiled: June 13, 1997Date of Patent: May 26, 1998Assignee: Hoechst AktiengesellschaftInventors: Joachim Weber, Hans Joachim Metz
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Patent number: 5753728Abstract: Polymeric compositions well suited for conversion into electroconductive shaped articles, e.g., films, comprise at least one convertible polymer (Pm) and at least one amphiphilic organic compound (B) which comprises a charge transfer complex or a radical ion salt having the formula (I): D.sub.d A.sub.a Z.sub.z, in which D is an electron donor; A is an electron acceptor; Z is a doping agent which itself can be a non-amphiphilic electron donor or electron acceptor, with the proviso that at least one of D and A is amphiphilic and contains at least one saturated or unsaturated hydrocarbon substituent having at least 10 carbon atoms; d is a number equal to or greater than 0; a is a number equal to or greater than 0; and z is a number equal to or greater than 0, with the further proviso that at least one of the symbols d and a is a number greater than 0.Type: GrantFiled: June 5, 1995Date of Patent: May 19, 1998Assignee: Rhone-Poulenc ChimieInventors: Bernard Chauvel, Joel Richard
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Patent number: 5744552Abstract: A method is disclosed for increasing the rate of vulcanization of a sulfur rubber composition comprising heating a sulfur vulcanizable rubber composition to a temperature ranging from 100.degree. C. to 200.degree. C., said rubber composition, containing a sulfur vulcanizable rubber, a sulfenamide compound and a hydrated thiosulfate. Addition of the hydrated thiosulfate to a sulfur vulcanizable rubber and a sulfenamide compound significantly increases the rate of vulcanization of the rubber.Type: GrantFiled: September 16, 1996Date of Patent: April 28, 1998Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard Michael D'Sidocky, Teddy Ben Cowling
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Patent number: 5726225Abstract: A description is given of powder coating compositions comprisinga) an organic film-forming binder, andb) as corrosion inhibitor i) at least one compound of the formula I ##STR1## in which R.sub.1 is hydrogen, C.sub.1 -C.sub.12 alkyl or C.sub.5 -C.sub.8 cycloalkyl,X is oxygen, sulfur or --NH--,Y is a direct bond, methylene, ##STR2## and Z is oxygen or ##STR3## and ii) at least one calcium-modified silicate pigment.Type: GrantFiled: June 10, 1996Date of Patent: March 10, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Adalbert Braig, Hugh Stephen Laver
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Patent number: 5710197Abstract: Fluorescent pigments contain essentially a polymer matrix based on polymethyl methacrylate and a nonpolar fluorescent dye from the coumarin or perylene series, the polymer matrix being a crosslinked polymethacrylate or polyacrylate prepared by suspension polymerization.Type: GrantFiled: July 13, 1995Date of Patent: January 20, 1998Assignee: BASF AktiengesellschaftInventors: Wolfgang Fischer, Andreas Deckers, Norbert Guntherberg, Ekkehard Jahns, Sylke Haremza, Werner Ostertag, Helmut Schmidt
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Patent number: 5698619Abstract: The present invention relates to the use in a silica-filled rubber composition of an aminosilane compound of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms, alkyl radicals having 1 to 8 carbon atoms and aryl radicals having 6 carbon atoms, with the proviso that at least one of R.sup.1, R.sup.2 and R.sup.3 is an alkoxy radical; R.sup.4 is selected from the group consisting of alkylene groups having from 1 to 18 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms; R.sup.5 is selected from the group consisting of hydrogen and alkyl groups having from 1 to 15 carbon atoms.Type: GrantFiled: June 24, 1996Date of Patent: December 16, 1997Assignee: The Goodyear Tire & Rubber CompanyInventors: Martin Paul Cohen, Cheryl Ann Losey, Dane Kenton Parker
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Patent number: 5686513Abstract: A process for the production of a polyamide stabilizer concentrate in which the concentrate consists of at least two interactive stabilizer components with defined particle sizes and, optionally, micro-dispersed silicic acid, as well as a wax bonding agent with a solidification temperature t.sub.A between 65.degree. and 120.degree. C., in which a homogeneous mixture of these ingredients is compacted into tablets when subjected to a compression force p that is sufficient to heat the mixture to a temperature of at least 40.degree. C. and equal to t.sub.A minus 10.degree. to 50.degree. C.Type: GrantFiled: September 9, 1996Date of Patent: November 11, 1997Assignee: Zimmer AktiengesellschaftInventor: Hartmut Liehr
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Patent number: 5684062Abstract: The present invention relates to polycarbonate molding compositions containing polycarbonates, stabilizers of general formula ##STR1## and optionally polypropylene glycols. The present invention also relates to the use of these molding compositions for the production of articles for medical applications.Type: GrantFiled: April 26, 1996Date of Patent: November 4, 1997Assignee: Bayer AGInventors: Wolfgang Ebert, Ralf Hufen, Rudiger Schubart, Gerhard Fennhoff
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Patent number: 5643979Abstract: A novel rubber composition is disclosed for use in the preparation of bellows-type rubber hoses for installation in automobile engine compartments. The rubber composition of the present invention contains a chlorinated ethylene-propylene copolymer as base rubber, a triazine-based vulcanizing agent, an acid-acceptor comprising magnesium oxide and hydrotalcite, a sulfur-containing organic carboxylic acid releasing enhancer, and a thioether-based antioxidant heat resistance enhancer. The disclosed bellows-type rubber hoses exhibit excellent heat and ozone resistance, sufficient rigidity to permit a reduction in wall thickness in order to withstand negative pressures associated with automobile engine environments and are amenable to molding with limited impact on releasing characteristics.Type: GrantFiled: December 20, 1994Date of Patent: July 1, 1997Assignees: Toyoda Gosei Co., Ltd., Showa Denko K.K.Inventors: Hidenori Hayashi, Takao Mizuta, Ichiro Sagae, Naotoshi Watanabe
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Patent number: 5637387Abstract: The present invention relates to storage-stable advanced polymaleimide compositions and prepreg products manufactured therefrom comprising (A) an advanced polymaleimide reaction product resulting from the advancement reaction of a polyimide and an alkenyl phenol; and (B) a phenothiazine added to component (A) after advancement.Type: GrantFiled: June 2, 1995Date of Patent: June 10, 1997Assignee: Ciba-Geigy CorporationInventors: Benjamin G. Chin, Roger Tietze
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Patent number: 5637629Abstract: Reinforced polyolefinic thermoplastic composition comprising a polyolefin, an aluminum and/or magnesium silicate and a maleamic silane.Type: GrantFiled: August 7, 1996Date of Patent: June 10, 1997Assignee: Enichem S.p.A.Inventors: Alessandro Moro, Italo Borghi, Paolo Venti, Domenico Vianello, Roberto Pippa
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Patent number: 5624981Abstract: Polyalkylpiperidine-containing acetic acid and 3-aminoacrylic acid derivatives I ##STR1## where R.sup.1 is hydrogen, C.sub.1 - to C.sub.6 -alkyl, formyl, C.sub.2 - to C.sub.6 -alkanoyl, C.sub.1 - to C.sub.12 -alkoxy, C.sub.5 - to C.sub.6 -cycloalkoxy, cyanomethyl, hydroxymethyl, 2-hydroxyethyl or a radical of the formula --CR.sup.3 =CH--CO--OR.sup.4, whereR.sup.3 is hydrogen, C.sub.1 -to C.sub.6 -alkyl or a radical of the formula --CO--OR.sup.4 andR.sup.4 is C.sub.1 - to C.sub.20 -alkyl, C.sub.5 - to C.sub.8 -cycloalkyl, C.sub.7 - to C.sub.18 -aralkyl, phenyl, tolyl or a radical of the formula --(CH.sub.2 CH.sub.2 O).sub.n H or --[CH(CH.sub.3)CH.sub.2 O].sub.n H, where n is a number from 1 to 30,X is O, NH or NR.sup.6, whereR.sup.6 is C.sub.1 - to C.sub.12 -alkyl, andY is hydrogen or a group of the formula =CH--NHR.sup.7 or =CH--NR.sup.6 R.sup.7, whereR.sup.7 is phenyl which can be substituted by one to three C.sub.1 - to C.sub.12 -alkyl, C.sub.1 - to C.sub.Type: GrantFiled: October 7, 1994Date of Patent: April 29, 1997Assignee: BASF AktiengesellschaftInventors: Martin Holderbaum, Alexander Aumueller, Hubert Trauth
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Patent number: 5594089Abstract: Thermomechanical and thermo-oxidative stabilities in heterocycle or heterocycle sulfone resin composites are improved by forming four crosslinks at each addition polymerization site in the backbone of the resin using crosslinking functionalities.Type: GrantFiled: October 21, 1994Date of Patent: January 14, 1997Assignee: The Boeing CompanyInventors: Hyman R. Lubowtiz, Clyde H. Sheppard
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Patent number: 5594052Abstract: A method is disclosed for increasing the rate of vulcanization of a sulfur rubber composition comprising heating a sulfur vulcanizable rubber composition to a temperature ranging from 100.degree. C. to 200.degree. C., said rubber composition, containing a sulfur vulcanizable rubber, a sulfenamide compound and a hydrated thiosulfate. Addition of the hydrated thiosulfate to a sulfur vulcanizable rubber and a sulfenamide compound significantly increases the rate of vulcanization of the rubber.Type: GrantFiled: September 11, 1995Date of Patent: January 14, 1997Assignee: The Goodyear Tire & Rubber CompanyInventors: Richard M. D'Sidocky, Shingo Futamura
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Patent number: 5580916Abstract: A description follows of vulcanizable compositions of nitrile rubbers containing a plasticizer, a vulcanizing agent and normal additives, wherein the plasticizer is an organic carbonate selected from those which can be defined with the formula (I): ##STR1## or with the formula (II): ##STR2## wherein R, R.sup.1, R.sup.2, X and n are as defined in the description.Type: GrantFiled: March 9, 1994Date of Patent: December 3, 1996Assignee: Enichem, Synthesis S.p.A.Inventors: Enrico Traverso, Franco Rivetti, Lucio Spelta
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Patent number: 5550192Abstract: Disperse dyeable compositions of ethylene alkyl acrylate grafted onto polypropylene are provided. A process for disperse dyeing polypropylene fibers is provided. This process comprises (a) extruding the polypropylene with about 2 to 10% by weight of a thermoplastic copolymer of ethylene and alkyl acrylates having one to four carbon atoms in the alkyl group into fibers, and (b) exposing the fibers to a disperse dye bath containing a selected disperse dye.Type: GrantFiled: February 3, 1995Date of Patent: August 27, 1996Assignee: Lyondell Petrochemical CompanyInventors: Paresh J. Sheth, Venkatramana Chandrashekar, Roger R. Kolm
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Patent number: 5508313Abstract: The invention provides inherently tacky, polymeric, organic, solvent-insoluble, solvent dispersible, elastomeric, pressure sensitive adhesive microspheres having pendant hydrophilic polymeric or oligomeric moieties having a degree of polymerization greater than or equal to 2. The microspheres which are sterically stabilized can offer enhanced stability against coagulation caused by alkali, alkali salts, polyelectrolytes and repeated freeze/thaw cycles. The present invention also provides pressure-sensitive adhesives comprising these microspheres including aerosol spray PSAs, coated sheet materials prepared therefrom, and method of making the microspheres.Type: GrantFiled: November 2, 1994Date of Patent: April 16, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Joaquin Delgado, Richard J. Goetz, Spencer F. Silver
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Patent number: 5503759Abstract: The invention relates to reaction products suitable as antioxidants which are substantially liquid at room temperature and which are obtained by the reaction of olefins with mixtures of diphenylamines and phenothiazines which may be alkylated. These products are obtainable by reacting an olefin of formulaR.sub.1 R.sub.2 C.dbd.CHR.sub.3 (I)with a mixture of compounds of formulae II and III ##STR1## in the presence of an acid catalyst, wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.25 alkyl or phenyl,R.sub.2 is C.sub.1 -C.sub.25 alkyl, benzyl or phenyl,R.sub.3 is hydrogen or C.sub.1 -C.sub.12 alkyl,R.sub.4, R*.sub.4, R.sub.5 and R*.sub.5 are each independently of one another hydrogen, C.sub.1 -C.sub.25 alkyl, C.sub.5 -C.sub.12 cycloalkyl, benzyl, .alpha.-methylbenzyl or .alpha.,.alpha.-dimethylbenzyl, and R.sub.6 and R*.sub.6 are each independently of the other hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.4 alkenyl, benzyl or a radical of formula --CH(R.sub.9)--CH(R.sub.10)--S--R.sub.11, andR.sub.7 and R.sub.Type: GrantFiled: December 20, 1994Date of Patent: April 2, 1996Assignee: Ciba-Geigy CorporationInventors: Samuel Evans, Stephan Allenbach
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Patent number: 5500470Abstract: A water-based bonding agent material made of an acrylic polymer or copolymer emulsion, metal salt complexed with an amine and surfactant is useful for unitizing packages having synthetic polymer surfaces.Type: GrantFiled: September 6, 1994Date of Patent: March 19, 1996Assignee: W.R. Grace & Co.-Conn.Inventors: Srinivas K. Mirle, Eugene E. Carney
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Patent number: 5486555Abstract: A process for the production of a stabilized polycarbonate which comprises melt-polycondensing an aromatic dihydroxy compound and a carbonic acid diester in the presence of a polycondensation catalyst and then, after the reaction mixture shows an intrinsic viscosity of at least 0.1, adding at least one stabilizer selected from the group consisting of specific compounds having either a sulfonate group, a sulfonic acid anhydride group or a sulfate group in an amount of 0.01 to 500 ppm of a polycarbonate to be formed, to form a polycarbonate having a desired intrinsic viscosity.Type: GrantFiled: May 10, 1995Date of Patent: January 23, 1996Assignee: Teijin LimitedInventors: Masumi Hirata, Wataru Funakoshi, Katsushi Sasaki
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Patent number: 5484828Abstract: A thermoplastic polycarbonate molding composition free from organo phosphorus compounds and having an improved resistance to discoloration caused by exposure to High Intensity Discharge (HID) light and heat is disclosed. Accordingly, the molding composition contains (co)polycarbonate resin, a dimeric benzotriazole and an ester of a 3,5-di-tert-butyl-4-hydroxyhydrocinnamic acid. In a preferred embodiment, a sheet made of (co)polycarbonate resin is rendered improved resistance to discoloration by having applied to at least one of its surfaces an adherent protective film prepared from the polycarbonate composition of the invention.Type: GrantFiled: November 18, 1994Date of Patent: January 16, 1996Assignee: Bayer CorporationInventors: Kevin F. Dunay, Winfried G. Paul, Sivaram Krishnan
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Patent number: 5482984Abstract: A composition comprising a) a thermosetting, thermoplastic or structurally crosslinked polymer and b) a charge transfer complex of formula I in the form of a network of crystal needles in the polymer matrix[A].sup..crclbar. .multidot.B.sup..sym. (I),whereinA is a compound of formula II or a mixture of compounds of formula II ##STR1## wherein the R substituents are identical and are H or C.sub.1 -C.sub.4 alkyl, or the adjacent R substituents, taken together, are --(CH.sub.2).sub.3 -- or --(CH.sub.2).sub.4 --; R.sub.1 is H or C.sub.1 -C.sub.4 alkyl; and X.sub.1 is .dbd.N--CN, and X.sub.2, X.sub.3 and X.sub.4 are each independently of one another .dbd.O or .dbd.N--CN, and B is a compound of formula III or IIIa ##STR2## wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each independently of one another H, linear or branched C.sub.1 -C.sub.18 alkyl-(Z.sub.1).sub.n --, phenyl-(Z.sub.1).sub.n -- or benzyl-(Z.sub.1).sub.n -- which are unsubstituted or substitute by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.Type: GrantFiled: September 22, 1994Date of Patent: January 9, 1996Assignee: Ciba-Geigy CorporationInventor: Peter Chetcuti
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Patent number: 5428136Abstract: Disazo compounds of the formula (I) ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are a hydrogen or halogen atom or a C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.5 -alkoxycarbonyl, nitro, cyano or trifluoromethyl group and the rings A, B, C and D independently of one another are unsubstituted or contain one or more substituents from the group comprising C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, carboxyl, C.sub.1 -C.sub.5 -carbalkoxy, C.sub.2 -C.sub.5 -alkanoyl, benzoyl, acyloxy, acylamino, unsubstituted or N-mono- or N,N-disubstituted carbamoyl or unsubstituted or N-mono- or N,N-disubstituted sulfamoyl, possible substituents being C.sub.1 -C.sub.4 -alkyl or mono- to trisubstituted phenyl; C.sub.1 -C.sub.4 -alkylamino or phenylamino; C.sub.1 -C.sub.Type: GrantFiled: July 29, 1993Date of Patent: June 27, 1995Assignee: Hoechst AGInventors: Rudiger Jung, Joachim Weide, Hans J. Metz
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Patent number: 5424344Abstract: A flame retardant polymer composition comprising at least one polymer selected from the group consisting of a polyamide, polyolefin, polyester, polyacrylic, polystyrene, polyurethane and polycarbonate, a flame retardant effective amount of an additive comprising at least one(a) hexavalent oxygenated sulfur compound and optionally at least one of(b) a char forming agent,(c) a metal compound,(d) a filler or reinforcing agent, and(e) a flow modifier.By excluding halogens and phosphorus beneficial results are achieved without the negative consequences attending their presence.Type: GrantFiled: January 5, 1994Date of Patent: June 13, 1995Assignee: E. I. DuPont de Nemours and CompanyInventor: Menachem Lewin
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Patent number: 5424343Abstract: A cyanoacrylate monomer adhesive formulation which has improved thermal properties resulting from the inclusion in the formulation of an effective amount for enhancing the thermal resistance of the cured polymer of a naphthosultone compound having at least one strong electron withdrawing group thereon, suitably a nitro group.Type: GrantFiled: October 8, 1992Date of Patent: June 13, 1995Assignee: Loctite CorporationInventor: Shabbir Attarwala
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Patent number: 5401815Abstract: A process and coated vessel for use in the prevention of scale adhesion during the polymerization of a monomer having an ethylenic double bond, the two part coating comprising an N-substituted leucophenothiazine dye having the general formula (I): 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., used in conjunction with a vinyl pyrrolidone polymer. The two part coating is used 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: February 1, 1994Date of Patent: March 28, 1995Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Toshihide Shimizu, Minoru Shigemitsu
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Patent number: RE37200Abstract: A thermoplastic polycarbonate molding composition free from organo phosphorus compounds and having an improved resistance to discoloration caused by exposure to High Intensity Discharge (HID) light and heat is disclosed. Accordingly, the molding composition contains (co)polycarbonate resin, a dimeric benzotriazole and an ester of a 3,5-di-tert-butyl-4-hydroxyhydrocinnamic acid. In a preferred embodiment, a sheet made of (co)polycarbonate resin is rendered improved resistance to discoloration by having applied to at least one of its surfaces an adherent protective film prepared from the polycarbonate composition of the invention.Type: GrantFiled: August 23, 1999Date of Patent: May 29, 2001Assignee: Bayer CorporationInventors: Kevin F. Dunay, Winfried G. Paul, Sivaram Krishnan