Two Or More Chalcogen Rings Patents (Class 524/109)
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Patent number: 5759450Abstract: A naphthopyran compound represented by the formula: ##STR1## wherein R.sub.5, R.sub.6, R.sub.8, R.sub.9, and R.sub.10 are each selected from hydrogen, a first stable organic radical, an organic heterocyclic group, halogen, a first nitrogen-substituted group, and a first nitrogen-substituted ring compound; A and B are each selected from hydrogen, substituted phenyl, and substituted naphthyl, provided that at least one of A or B is substituted phenyl or substituted naphthyl; and any substituent of any substituted phenyl or substituted naphthyl at A or B is selected from hydrogen, a second stable organic radical, an organic heterocyclic group, halogen, a second nitrogen-substituted group, and a second nitrogen-substituted ring compound, provided that at least one substituent of any substituted phenyl or substituted naphthyl at either A or B is phenyl, naphthyl, or furyl.Type: GrantFiled: July 31, 1996Date of Patent: June 2, 1998Assignee: Vision-Ease Lens, Inc.Inventors: Frank J. Hughes, Edward A. Travnicek
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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: 5726227Abstract: Thermoplastic moulding compositions containingA) polymers selected from the group comprising polyolefines, styrene polymers, polyamides, polyalkyl methacrylates, polyphenylene sulphides, ABS graft polymers, and thermoplastic polyurethanes, andB) esters of phosphorous acid which contain at least one oxetane group and at least one radical of a dihydric or polyhydric phenol per molecule, andoptionallyC) fillers and reinforcing materials,D) flame retardant additives,E) elastomeric modifiers.Type: GrantFiled: November 20, 1996Date of Patent: March 10, 1998Assignee: Bayer AGInventors: Herbert Magerstedt, Ernst Grigat
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Patent number: 5726240Abstract: This invention relates to mixtures of polymethylene poly(phenylisocyanate) blends with epoxides. The addition of the epoxide stabilizes the reactivity of the polyisocyanate blends such that it is no longer dependent on the acidity. It is now possible to form polyurethanes from these mixtures based on polymethylene poly(phenylisocyanate) blends wherein less catalyst is necessary.Type: GrantFiled: November 25, 1996Date of Patent: March 10, 1998Assignee: Bayer CorporationInventors: James W. Rosthauser, Robert L. Cline, Richard S. Pantone
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Patent number: 5723072Abstract: Described are novel photochromic heterocyclic fused indenonaphthopyran compounds having a substituted or unsubstituted heterocyclic ring fused to the g, h, i, n, o or p side of the indenonaphthopyran. These compounds may be represented by either of the following graphic formulae: ##STR1## Also described are polymeric organic host materials that contain or that are coated with such compounds.Type: GrantFiled: March 18, 1997Date of Patent: March 3, 1998Assignee: PPG Industries, Inc.Inventor: Anil Kumar
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Patent number: 5705546Abstract: A thermoplastic molding composition having improved release properties is disclosed. The composition contains a polycarbonate and an additive amount of an epoxy conforming structurally to ##STR1## where R is a member selected from the group consisting of glyceryl and trimethyl propyl radicals, x is 0 to 20 and R' is a C.sub.1-4 alkyl radical.Type: GrantFiled: June 13, 1996Date of Patent: January 6, 1998Assignee: Bayer CorporationInventors: Sivaram Krishnan, James B. Johnson
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Patent number: 5702645Abstract: Described herein are photochromic compounds or a structural isomer of the photochromic compound, the photochromic compounds represented by the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.4, R.sub.5, R.sub.6, R.sub.8, A, B, C, and D are each selected from the group consisting essentially of hydrogen, a stable organic radical, a heterocyclic group, halogen, a nitrogen-substituted radical, and a nitrogen-substituted ring radical.Type: GrantFiled: October 30, 1995Date of Patent: December 30, 1997Assignee: Vision-Ease Lens, Inc.Inventor: Frank J. Hughes
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Patent number: 5698141Abstract: Described are novel photochromic heterocyclic fused indenonaphthopyran compounds having a substituted or unsubstituted heterocyclic ring fused to the g, h, i, n, o or p side of the indenonaphthopyran. These compounds may be represented by either of the following graphic formulae: ##STR1## Also described are polymeric organic host materials that contain or that are coated with such compounds.Type: GrantFiled: January 16, 1997Date of Patent: December 16, 1997Assignee: PPG Industries, Inc.Inventor: Anil Kumar
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Patent number: 5688846Abstract: Polymeric compositions comprising a polymer and photochromic compounds belonging to the class of spiro-pyrans, having the general formula (I): ##STR1##Type: GrantFiled: May 15, 1996Date of Patent: November 18, 1997Assignee: Ministero Dell `Universita` E Della Ricerca Scientifica E TecnologicaInventors: Pietro Allegrini, Nereo Nodari, Vincenzo Malatesta, Luciana Crisci
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Patent number: 5681905Abstract: An improved thermoplastic molding composition containing polycarbonate and a polyester copolymer based on cyclohexane-dimethanol, ethylene glycol and phthalic acid is disclosed. Improved resistance to gamma-radiation results from the incorporation of a siloxane compound which contains an oxirane group.Type: GrantFiled: August 16, 1996Date of Patent: October 28, 1997Assignee: Bayer CorporationInventors: James P. Mason, Sivaram Krishnan, Walter G. Chwala
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Patent number: 5681655Abstract: Filaments from a polyester resin having an elastic modulus higher than 30 GPa and stress at break greater than 300 MPa. The filaments are obtained by upgrading under stretch filaments prepared from polyester resin mixed in the melt with a polyfunctional compound able to increase the polymer intrinsic viscosity by addition reaction in the solid state with the terminal groups of the resin.Type: GrantFiled: January 2, 1996Date of Patent: October 28, 1997Assignee: Sinco Engineering S.p.A.Inventors: Hussain Ali Kashif Al Ghatta, Tonino Severini, Sandro Cobror
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Patent number: 5663223Abstract: A liner composition for a potable fluid container closure element which includes an inorganic sulfite such as sodium sulfite and/or a tocopherol compound such as dl-.alpha.-tocopherol (vitamin E) for preventing off-flavors due to the presence of aldehydes in the fluid. Also, a potable fluid container of a reservoir element for containing a potable fluid, the reservoir element having an opening, a closure element capable of being attached to the opening, and the liner composition associated with the closure element. Also, a method of improving the taste of a potable fluid such as bottled water by use of the container and one of the previously described liner compositions associated therewith. Also, an improved method for processing the composition into closure liners based upon the prevention of the development of off-flavor-causing substances therein.Type: GrantFiled: August 11, 1994Date of Patent: September 2, 1997Assignee: Zapata Technologies, Inc.Inventors: Fred N. Teumac, Mahmood R. Rassouli, Janine M. Rusnock, Anthony Irwin
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Patent number: 5658500Abstract: Described are novel reversible photochromic 2H-naphtho[1,2-b]pyran compounds, examples of which are compounds having certain substituents at the number 5 carbon atom of the naphtho-portion of the naphthopyran and at the 2-position of the pyran ring. Certain substituents may also be present at the number 6, 7, 8, 9 or 10 carbon atoms of the naphtho portion of the naphthopyran. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline) type compounds, are also described.Type: GrantFiled: June 14, 1995Date of Patent: August 19, 1997Assignee: Transitions Optical, Inc.Inventors: Anil Kumar, David B. Knowles, Barry Van Gemert
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Patent number: 5658501Abstract: Described are novel reversible photochromic 2H-naphtho[1,2-b] pyran compounds, examples of which are compounds having certain substituents at the number 5 carbon atom of the naphtho-portion of the naphthopyran and at the 2-position of the pyran ring. Certain substituents may also be present at the number 6, 7, 8, 9 or 10 carbon atoms of the naphtho portion of the naphthopyran. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline) type compounds, are also described.Type: GrantFiled: June 14, 1995Date of Patent: August 19, 1997Assignee: Transitions Optical, Inc.Inventors: Anil Kumar, David B. Knowles, Barry Van Gemert
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Patent number: 5656206Abstract: Described are novel reversible photochromic 2H-naphtho[1,2-b]pyran compounds, examples of which are compounds having certain substituents at the number 5 carbon atom of the naphtho portion of the naphthopyran and at the 2-position of the pyran ring. Certain substituents may also be present at the number 6, 7, 8, 9 or 10 carbon atoms of the naphtho portion of the naphthopyran. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline) type compounds, are also described.Type: GrantFiled: June 14, 1995Date of Patent: August 12, 1997Assignee: Transitions Optical, Inc.Inventors: David B. Knowles, Barry Van Gemert, Anil Kumar
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Patent number: 5651923Abstract: Described are novel reversible photochromic 2H-naphtho[1,2-b]pyran compounds, examples of which are compounds fused on the naphtho-portion of the naphthopyran ring with an indeno group or certain heterocyclic substituents. Certain substituents are also present at the 2 and 5 positions and sometimes at the 6 position of the naphthopyran ring. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline) type compounds, are also described.Type: GrantFiled: December 12, 1995Date of Patent: July 29, 1997Assignee: Transitions Optical, Inc.Inventors: Anil Kumar, David B. Knowles, Barry Van Gemert
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Patent number: 5604280Abstract: The invention concerns photochromic compounds with general formula (I): ##STR1## where R.sup.a, R.sup.b and R.sup.c represent hydrogen; alkyl, aryl, OR, SR, COR or COOR, where R represents hydrogen, alkyl or aryl, amino with formula NR.sub.1 R.sub.2, where R.sub.1 and R.sub.2 each represent hydrogen, alkyl, cycloalkyl, or aryl, R.sub.1 and R.sub.2 may together form a heterocycle containing four to seven members with the nitrogen atom and may intracyclically contain one or more heteroatoms selected from nitrogen, oxygen, sulphur, or a halogen atom; a mono- or polyhaloalkyl; an NO.sub.Type: GrantFiled: April 5, 1995Date of Patent: February 18, 1997Assignee: Essilor International Compagnie Generale D'OptiqueInventors: Jean L. Pozzo, Robert Guglielmetti, Andr e Samat, Vladimir Lokshin, Guena elle Harie
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Patent number: 5595689Abstract: A polymer blend according to the invention of the type including an intrinsically conductive polymer disbursed in a matrix selected from thermoplastic polymers, monomers, polymerizable precursors and combinations thereof is improved by an amount of a non-polymeric polar additive having a boiling point greater than about 100.degree. C. at 760 mm pressure and greater than the processing temperature of the matrix polymer incorporated in the polymer blend, in an amount sufficient to impart an electrical conductivity to the blend which is greater than that of the blend without the non-polymeric polar additive. A blend according to the invention includes a matrix material selected from thermoplastic polymers, monomers and polymer precursors and combinations thereof, and an intrinsically conductive polymer and a non-polymeric highly polar additive, disbursed into a polymer blend and having a conductivity of greater than about 2.5 S/cm.Type: GrantFiled: July 21, 1994Date of Patent: January 21, 1997Assignee: Americhem, Inc.Inventors: Vaman G. Kulkarni, John C. Campbell
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Patent number: 5543448Abstract: Blends of polycarbonate and polyester are admixed in compositions with poly(phenylene ether), and/or with a poly(phenylene ether) concentrate containing poly(phenylene ether), polystyrene, a vinyl aromatic copolymer, polyamide, polycarbonate, polyester, poly(alkyl acrylate), and/or poly(alkyl methacrylate).Type: GrantFiled: January 26, 1995Date of Patent: August 6, 1996Assignee: The Dow Chemical CompanyInventor: Michael K. Laughner
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Patent number: 5539030Abstract: Polycarbonate is admixed in compositions with poly(phenylene ether), and/or with a poly(phenylene ether) concentrate containing poly(phenylene ether), polystyrene, a vinyl aromatic copolymer, polyamide, polycarbonate, polyester, poly(alkyl acrylate), and/or poly(alkyl methacrylate). The blended compositions may also optionally contain additional vinyl aromatic copolymer as a separate component, impact modifiers, thermoplastic molding materials including polystyrene, polyolefin, polyamide, poly(vinyl chloride), polyurethane, polyacetal, and conventional additives such as dyes and pigments.Type: GrantFiled: November 28, 1994Date of Patent: July 23, 1996Assignee: The Dow Chemical CompanyInventor: Michael K. Laughner
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Patent number: 5534566Abstract: Use of a di- or polysaccharide alcohol and an inorganic or organic zinc, aluminum or rare-earth compound allows a high degree of stabilization of a halogen-containing polymer or polymer recyclate.Type: GrantFiled: April 10, 1995Date of Patent: July 9, 1996Assignee: Ciba-Geigy CorporationInventors: Wolfgang Wehner, Rolf Drewes, Karl J. Kuhn, Hans-Jurgen Sander, Markus Kolb
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Patent number: 5519077Abstract: A high degree of stabilization of polyvinyl chloride is achieved by using a perchlorate, a terminal epoxide compound and an antioxidant.Type: GrantFiled: April 10, 1995Date of Patent: May 21, 1996Assignee: Ciba-Geigy CorporationInventors: Rolf Drewes, Markus Kolb, Karl J. Kuhn, Hans-Jurgen Sander, Wolfgang Wehner
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Patent number: 5508344Abstract: A thermoplastic molding composition comprising a resinous blend of polycarbonate, polyester and an impact modifier and an additive amount of a siloxane compound containing a pendant oxirane group is disclosed. It was surprisingly and unexpectedly discovered that unlike the corresponding compositions which contain no siloxane compound, the inventive composition is capable of being dried at low temperatures prior to molding and still maintain high impact strength.Type: GrantFiled: November 22, 1994Date of Patent: April 16, 1996Assignee: Bayer CorporationInventors: James P. Mason, William B. Villee, Sivaram Krishnan
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Patent number: 5498650Abstract: A poly(lactic acid) composition having improved physical properties comprises a homogeneous solid solution of (a) a polymer having a number average molecular weight of 3,000-200,000 and selected from the group consisting of (1) poly(lactic acid), (2) copolymers of lactic acid containing at least 50 mole % lactic acid units, and (3) mixtures thereof; and (b) a plasticizer comprising an epoxidized oil selected from the group consisting of (1) epoxidized soybean oil; and (2) epoxidized linseed oil.Type: GrantFiled: February 24, 1995Date of Patent: March 12, 1996Assignee: Ecological Chemical ProductsInventors: Edmund A. Flexman, William E. Kelly, Jr.
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Patent number: 5491179Abstract: An improved thermoplastic molding composition containing polycarbonate and a polyester copolymer based on cyclohexane-dimethanol, ethylene glycol and phthalic acid is disclosed. Improved thermal stability and resistance to gamma-radiation results from the incorporation of a phosphite conforming to ##STR1## where n, m, p and r are integers, and where R is H, an alkyl or an aryl group and R.sub.3 denotes an alkyl or aryl group.Type: GrantFiled: November 23, 1994Date of Patent: February 13, 1996Assignee: Bayer CorporationInventor: James P. Mason
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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: 5455092Abstract: A labelstock which comprises a release-coated liner, a facestock including a layer consisting essentially of one or more nucleating agents of polyolefins and (a) one or more olefin homopolymers or (b) one or more copolymers of olefins or (c) a mixture of (a) and (b), and a pressure-sensitive adhesive for releasably joining the facestock to the release-coated liner.Type: GrantFiled: May 11, 1993Date of Patent: October 3, 1995Assignee: The Dow Chemical CompanyInventor: Harvey C. Tung
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Patent number: 5428177Abstract: Novel compounds of formula (1) ##STR1## wherein R.sub.1 is hydrogen, alkyl or alkaryl, R.sub.2 to R.sub.5 are independently hydrogen, chloro, alkyl phenylalkyl, aryl, cycloalkyl, alkoxy, alkylthio, hydroxy, amino or substituted amino, R.sub.6 is hydrogen, R.sub.7 and R.sub.8 are hydrogen or alkyl, R.sub.9 and R.sub.9 ' are hydrogen, alkyl or phenyl, and R.sub.10 is hydrogen or alkyl, are disclosed as stabilisers for protecting organic materials against thermal, oxidative or light-induced degradation.Type: GrantFiled: September 20, 1993Date of Patent: June 27, 1995Assignee: Ciba-Geigy CorporationInventor: Peter Nesvadba
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Patent number: 5424347Abstract: Disclosed and claimed are formulations of polyvinylidene chloride, methyl acrylate and substantially no ethylene vinyl acetate which have high gas, especially oxygen, barrier properties and which maintain said high gas, especially oxygen, barrier properties after retorting; films and film-packages such as pouches from such formulations; and, methods of preparing foods employing such film-packages.Type: GrantFiled: March 16, 1993Date of Patent: June 13, 1995Assignee: American National Can CompanyInventors: Robert J. Blemberg, John P. Eckstein, Mark E. Nordness
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Patent number: 5422415Abstract: Described are compositions protected against thermal and oxidative degradation that compriseA) a polyether polyol or mixtures of such polyols,B) at least one benzofuranone derivative of formula I, ##STR1## wherein L, G, m, R.sub.1 to R.sub.5 and R.sub.21 to R.sub.24 are as defined in claim 1,C) at least one compound from the group of the phenolic anti-oxidants, and/orD) at least one compound from the group of the amino anti-oxidants of the secondary amine type. Also polyurethane(s) (foam(s)) prepared therefrom are protected against thermal and oxidative degradation, especially against core scorching.Type: GrantFiled: February 3, 1994Date of Patent: June 6, 1995Assignee: Ciba-Geigy CorporationInventor: Peter Michaelis
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Patent number: 5416141Abstract: Halogen-containing synthetic resins can be stabilized with calcium and/or zinc soaps. Co-stabilizers are necessary for enhancing their stabilizing effect. The invention relates to special cationic layered hydrotalcite compounds having a specific BET surface of at least 50 m.sup.2 /g which are modified with polyols, epoxidized esters, full and partial esters of polyols and/or phosphites, to a process for their production and to their use as co-stabilizers for halogen-containing synthetic resins stabilized with calcium and/or zinc salts.Type: GrantFiled: January 24, 1994Date of Patent: May 16, 1995Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Helmut Endres, Frido Loeffelholz, Peter Wedl, Kurt Worschech, Angela Hansen, Guenther Geismar
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Patent number: 5412010Abstract: A monomer supression additive comprising and ethylenically unsaturated monomer, ceresin wax, a drying oil such as corn oil and an epoxidized drying oil such as epoxidized soybean oil. The additive when added vinyl ester resins or polyester resins improves secondary adhesion.Type: GrantFiled: May 19, 1994Date of Patent: May 2, 1995Assignee: The Dow Chemical CompanyInventors: Terry W. Cowley, Mary L. N. White
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Patent number: 5412009Abstract: The invention provides a compound of general formula I ##STR1## in which X represents a direct bond or a ##STR2## group.Type: GrantFiled: December 7, 1992Date of Patent: May 2, 1995Assignee: FMC Corportion (UK) LimitedInventors: Michael J. Schneider, James Gainer
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Patent number: 5405892Abstract: A melt-stable, pigmented thermoplastic molding composition is disclosed. Accordingly, to the composition which contains polycarbonate resin and pigment there is imparted an improved level of melt stability upon the incorporation therewith of an additive amount of a melt stabilizer conforming to ##STR1## where R.sub.1, R.sub.2, R.sub.3 and n are defined. In an additional embodiment the invention relates to a color concentrate containing polycarbonate resin, up to 30% of a pigment and an effective amount of said stabilizer.Type: GrantFiled: June 22, 1994Date of Patent: April 11, 1995Assignee: Miles Inc.Inventors: Sivaram Krishnan, James B. Johnson, Susan H. Bates, Edward M. Anderson
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Patent number: 5395874Abstract: A flame retardant resin composition which includes 100 weight parts of a rubber-reinforced styrene-based resin, 2.about.35 weight parts of an epoxy-oligomer of tetrabromobisphenol-A (A1), 2.about.35 weight parts of bis-(tribromophenoxy)ethane (A2), 1.about.15 weight parts of antimony trioxide (B), and 0.1.about.10 weight parts of chlorinated polyethylene (C), wherein the total of the above (A1), (A2), (B) and (C) are 8.about.50 weight parts and the weight ratio of (A1)/(A2) is 10/90.about.75/25. The composition of the present invention has well-balanced flame retardance and impact resistance.Type: GrantFiled: April 27, 1993Date of Patent: March 7, 1995Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Ikuhiro Mishima, Rika Munakata, Mamoru Ishida
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Patent number: 5380775Abstract: Vinyl ester or polyester resins containing polymerizable, vaporizable, ethylenically unsaturated monomers and an emission suppressing amount of ceresin wax is improved with the addition of a drying oil such as corn oil and an epoxidized drying oil such as epoxidized soybean oil. The improvement is in secondary adhesion.Type: GrantFiled: May 19, 1994Date of Patent: January 10, 1995Assignee: The Dow Chemical CompanyInventors: Terry W. Cowley, Mary L. N. White
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Patent number: 5378744Abstract: 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. B.sup..sym. (I),wherein A 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 or C.sub.1 -C.sub.4 alkyl; and H.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 substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.Type: GrantFiled: January 22, 1993Date of Patent: January 3, 1995Assignee: Ciba-Geigy CorporationInventor: Peter Chetcuti
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Patent number: 5371123Abstract: Polyester resins, optionally in combination with a polycarbonate, flame retarded with a halogenated bis-imide flame retardant agent and modified with a glass fiber reinforcing agent treated with a coating agent selected from certain polyepoxides and/or polyolefins exhibit markedly improved color characteristics.Type: GrantFiled: December 22, 1992Date of Patent: December 6, 1994Assignee: General Electric CompanyInventors: Robert R. Gallucci, Leslie J. Goff, Douglas G. Hamilton
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Patent number: 5369158Abstract: Described are novel reversible photochromic naphthopyran compounds substituted at the number eight carbon atom on the naphtho portion of the naphthopyran ring with, for example, a methoxy group. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds are also described.Type: GrantFiled: June 2, 1993Date of Patent: November 29, 1994Assignee: Transitions Optical, Inc.Inventor: David B. Knowles
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Patent number: 5350802Abstract: Blends of carbonate and monovinylidene aromatic copolymers containing selected low molecular weight halogenated epoxy compounds, in combination with tetrafluoroethylene polymers, are shown to have surprising combinations of impact and ignition resistance and be very suitable for electroplating applications. In general the selected epoxy compounds can be represented by the following formula: ##STR1## where, preferably, R is hydrogen; X is bromine; i is 2; L is 2,2-isopropyl; n is from 0 to 1. Polymer blends based on from about 65 to about 98 weight percent carbonate polymer, from about 2 to about 25 percent by weight monovinylidene aromatic copolymer, preferably rubber modified, and from 0 to about 10 percent by weight of a rubbery core/shell graft copolymer impact modifier are suitable for preparation of these compositions. It has been found desirable to employ from about 1 to about 20 percent by weight low molecular weight halogenated epoxy compound, and from 0.Type: GrantFiled: June 23, 1993Date of Patent: September 27, 1994Assignee: The Dow Chemical CompanyInventors: Jack W. Muskopf, M. Robert Christy, Jaysn F. Jameson, deceased, Jerry M. Jameson, heir, Donna R. Jameson, heiress, Tami S. Hallmark
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Patent number: 5340856Abstract: Vinyl ester or polyester resins containing polymerizable, vaporizable, ethylenically unsaturated monomers and an emission suppressing amount of ceresin wax is improved with the addition of a drying oil such as corn oil and an epoxidized drying oil such as epoxidized soybean oil. The improvement is in secondary adhesion.Type: GrantFiled: September 14, 1993Date of Patent: August 23, 1994Assignee: The Dow Chemical CompanyInventors: Terry W. Cowley, Mary L. N. White
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Patent number: 5326801Abstract: New organic phosphites of a specific formula are used as stabilizers for polymers and other organic materials.Type: GrantFiled: July 28, 1992Date of Patent: July 5, 1994Assignee: Himont IncorporatedInventors: Marco Foa, Sauro Strologo
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Patent number: 5308899Abstract: Described are compositions protected against thermal and oxidative degradation that compriseA) a polyether polyol or mixtures of such polyols,B) at least one benzofuranone derivative of formula I, ##STR1## wherein L, G, m, R.sub.1 to R.sub.5 and R.sub.21 to R.sub.24 are as defined in claim 1,C) at least one compound from the group of the phenolic anti-oxidants, and/orD) at least one compound from the group of the amino anti-oxidants of the secondary amine type. Also polyurethane(s) (foam(s)) prepared therefrom are protected against thermal and oxidative degradation, especially against core scorching.Type: GrantFiled: November 16, 1992Date of Patent: May 3, 1994Assignee: Ciba-Geigy CorporationInventor: Peter Michaelis
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Patent number: 5302643Abstract: Dibenzylidene xylonates are a new class of clarifiers for polyolefins. The invention includes polyolefin compositions having the new clarifiers therein.Type: GrantFiled: July 26, 1993Date of Patent: April 12, 1994Assignee: Becton, Dickinson and CompanyInventors: O. Elmo Millner, Richard P. Clarke, George R. Titus
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Patent number: 5294653Abstract: Water-based varnish for glass prepared by mixing, just before use, the following basic components:component A: aqueous dispersion of an acrylic polymer containing hydroxy functional groups,component B: trialkoxysilane containing an epoxy functional group,component C: zirconium and ammonium double carbonate containing ZrO.sub.2 (+HfO.sub.2) (19% to 20% by wt.), in the form of an aqueous solution, components B and C in the mixture amounting to 3 and 2 parts by wt., respectively, per 100 parts by wt. of A.Type: GrantFiled: March 22, 1993Date of Patent: March 15, 1994Assignee: Oece Industrie Chimiche SpAInventor: Mauricio Colucci
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Patent number: 5290835Abstract: An electrical or electronic part having excellent resistance to moist heat, such as a coil bobbin, a condenser case, an IC carrier, a plug, a socket or a fuse case, formed from a polybutylene naphthalenedicarboxylate resin as a raw material; and a flame-retardant resin composition and an electrical part therefrom are also provided. The flame-retardant resin composition exhibits high fluidity and forms little burr, and the electrical part has excellent flame retardancy and well-balanced properties.Type: GrantFiled: October 21, 1992Date of Patent: March 1, 1994Assignee: Teijin LimitedInventors: Toshio Hatayama, Mie Sasaki, Takeshi Kojima, Yoshinari Ogawa, Sakae Shimotsuma, Kouichi Sakai
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Patent number: 5274009Abstract: A thermoplastic molding composition is disclosed containing a polycarbonate resin and(i) 0.1 to 10.0 percent of a polyalkylene oxide corresponding to formula (I) ##STR1## in which R represents H, C.sub.1-6 alkyl, tetrahydropyranyl or a silyl radical,R' represents H or C.sub.1-6 alkyl andx is an integer of 1 to 100, and(ii) 0.1 to 10 percent of an aromatic compound which contains at least one sulfonic acid ester substituent, said percent being relative to the weight of said polycarbonate. The composition which is resistant to the effects of gamma radiation is suitable for the preparation of sterilizable medical instruments.Type: GrantFiled: September 25, 1992Date of Patent: December 28, 1993Assignees: Bayer Aktiengesellschaft, Miles Inc.Inventors: Ulrich Grigo, Jurgen Kirsch, Karsten-Josef Idel, Charles Lundy
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Patent number: 5274016Abstract: Light-stabilized polymer microparticles, which contain at least one light stabilizer, and processes for the preparation of these microparticles by polymerization of suitable monomers, at least a part of the polymerization being carried out in the presence of at least one light stabilizer, are described. The polymer microparticles can be used in coating compositions which comprise a disperse phase containing these particles and a liquid continuous phase.Coatings and finishes based on the compositions according to the invention are distinguished by improved weathering resistance, in particular by a high light stability.Type: GrantFiled: August 5, 1991Date of Patent: December 28, 1993Assignee: Ciba-Geigy CorporationInventors: Godwin Berner, Manfred Rembold, Jean Rody, Mario Slongo
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Patent number: 5274132Abstract: Described are novel reversible photochromic naphthopyran compounds, examples of which are 3-aryl-3-arylalkenyl naphthopyrans. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline) type compounds, are also described.Type: GrantFiled: September 30, 1992Date of Patent: December 28, 1993Assignee: Transitions Optical, Inc.Inventor: Barry VanGemert
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Patent number: RE34514Abstract: A composition comprising (a) at least one oxidized polycationic polyheteroaromatic compound and (b) at least one polyanion of a film-forming thermoplastic polymer containing sulfated alcohol groups ##STR1## in repeating structural units. The composition has high electrical conductivity and good mechanical properties, especially after drawing at temperatures below the melt/decomposition temperature. The material may be used as electrodes, electrically conductive filaments or components for electromagnetic screening.Type: GrantFiled: April 27, 1992Date of Patent: January 18, 1994Assignee: Ciba-Geigy CorporationInventors: Wolfgang Wernet, Jean Stoffer