Phosphorus Bonded Directly To Three Chalcogen Atoms Only, E.g., Phosphite, Etc. Patents (Class 524/128)
  • Patent number: 6211501
    Abstract: Low-odor microwaveable mineral-filled polypropylene food contact articles are disclosed. The articles are prepared by low temperature processing and typically include odor-suppressing basic organic or inorganic compounds. Preferably, the articles are substantially free from C8 and C9 organic ketones associated with undesirable odors. Further improvements to the articles include crack-resistant embodiments with synergistic amounts of polyethylene and titanium dioxide.
    Type: Grant
    Filed: June 11, 1999
    Date of Patent: April 3, 2001
    Assignee: Fort James Corporation
    Inventors: Donald C. McCarthy, Ronald L. Cochran, II, Mark B. Littlejohn, Cristian M. Neculescu, Robert Patterson, Anthony J. Swiontek
  • Patent number: 6211500
    Abstract: Low-odor microwaveable polypropylene/mica food contact articles are disclosed. The articles are prepared by low temperature processing and typically include odor-suppressing basic organic or inorganic compounds. Preferably, the articles are substantially free from C8 and C9 organic ketones associated with undesirable odors. Further improvements to the articles include crack-resistant embodiments with synergistic amounts of polyethylene and titanium dioxide.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: April 3, 2001
    Assignee: Fort James Corporation
    Inventors: Ronald L. Cochran, II, Mark B. Littlejohn, Donald C. McCarthy, Cristian M. Neculescu, Robert Patterson, Anthony J. Swiontek
  • Patent number: 6191246
    Abstract: The invention provides a polymer which is a polymerization product obtained by polymerizing at least ethylene, 1-pentene and 1-hexene; and a process for producing a polymer by reacting at least ethylene, 1-pentene and 1-hexene in a reaction zone at a pressure between atmospheric and 60 kg/cm3 and at a temperature between 30° C. and 120° C., in the presence of a catalyst system. The invention also provides a polymer composition which comprises a terpolymer of ethylene, 1-pentene and 1-hexene, a phenolic stabilizer component, a metal salt of a higher aliphatic acid, and, optionally, at least one organic phosphite stabilizer.
    Type: Grant
    Filed: January 12, 1998
    Date of Patent: February 20, 2001
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Dawid Johannes Joubert, Ignatius Hendrik Potgieter, Ioan Tincul, Peter Loggenberg
  • Patent number: 6187848
    Abstract: A polyester molding composition reinforced with fiber glass or other silica based filler which has color stability at relatively high temperatures and comprises (a) from 40 to 97 weight percent of a polyester resin; (b) from about 3 to about 60 weight percent fibrous glass or silica based filler or mixture; (c) less than about 5 percent by weight additional ingredients which include a combination of stabilizers consisting essentially of an acidic quencher, a thioester and a phosphonite and (d) optionally from 2 to 30 weight percent of a flame retarding composition.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: February 13, 2001
    Assignee: General Electric Company
    Inventors: Matthew R. Pixton, Robert R. Gallucci, James M. Finan
  • Patent number: 6180700
    Abstract: A diphosphite is provided derived from phosphorous trihalide, tetra alkyl hindered bisphenol, and a neoalkyl diol. The phosphites exhibit improved stability and are useful as thermal oxidative stabilizers for thermoplastic compositions.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: January 30, 2001
    Assignee: General Electric Company
    Inventor: James A. Mahood
  • Patent number: 6172153
    Abstract: A polymer composition and fiber, film and fabric prepared therefrom. The composition contains (i) an acid neutralizing agent other than a metallic salt of a saturated or unsaturated fatty acid, (ii) a processing aid comprising a metallic salt of a saturated or unsaturated fatty acid, the metallic salt of a saturated or unsaturated being present in a maximum amount of 200 ppm, a stabilizer system containing (a) a phosphite selected from the group consisting of 2,2′,2″-nitrilo[triethyl-tris(3,3′,5,5′-tetra-tert.butyl-1, 1-biphenyl-2,2′-diyl)phosphite] and tris(2,4-di-tert-butylphenyl) phosphite; and (b) a N,N-dialkylhydroxylamine. Also disclosed is a method for preparing a polyolefin fiber, film or fabric which includes (A) incorporating the above additives into an olefin polymer, thereby producing a stabilized polyolefin polymer; and (B) extruding the stabilized olefin polymer through a die, thereby producing a olefin polymer fiber or film.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: January 9, 2001
    Assignee: Montell North America Inc.
    Inventor: Michael E. Starsinic
  • Patent number: 6140398
    Abstract: A novel composition of matter comprising the reaction product of a phosphoryl compound, a salicylic acid derivative, and an organic compound containing two groups having hydroxyl functionality is provided. This composition has utility as a fire retardant chemical.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: October 31, 2000
    Assignee: Rhodia Inc.
    Inventor: Johnson D. Koola
  • Patent number: 6136902
    Abstract: To provide a polyacetal resin composition having an excellent corrosion inhibiting effect on metals, particularly reduced in the adverse effect on magnetic tapes or the like, and suitable for use in producing component parts of a magnetic tape cassette such as a reel hub or tape guide, 100 parts by weight of a polyacetal resin (A) is blended with 0.05 to 5 parts by weight of an antioxidant (B), 0.001 to 5 parts by weight of a specified nitrogen-containing compound (C), and 0.001 to 3 parts by weight of a boric acid compound.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: October 24, 2000
    Assignee: Polyplastics Co., Ltd.
    Inventors: Yoshihito Fukasawa, Sachio Anada
  • Patent number: 6133403
    Abstract: Disclosed are acid hardenable phenolic resin compositions and novolac compositions modified with about 5 to about 15% by weight of at least one reactive diluent selected from the group consisting of benzylic alcohol, benzylic ether, ethylene glycol, 1,3-butylene glycol, monoallyl or methylallyl ethers of poly(methylol) alkanes, monoallyl ether of glycerine, allyl or methallyl glycidyl ether, N-acylated arylamine, N-acylated naphthylamine, N-substituted arylsulfonamide, and N-substituted arylamine. The reactive diluent can be used to improve impact resistance and flexibility of the acid hardenable phenolic resin. Preferably, the methods for modifying mix life of acid hardenable phenolic resin by use of aryl phosphite and benzylic alcohol, and methods for modifying novolac resins, as well as methods for making the present compositions and products, such as coiled filament pipe and laminate panels, employing the compositions are also disclosed.
    Type: Grant
    Filed: October 7, 1998
    Date of Patent: October 17, 2000
    Assignee: Borden Chemical, Inc.
    Inventor: Arthur H. Gerber
  • Patent number: 6107375
    Abstract: A thermoplastic composition featuring an improved resistance to hydrolysis is disclosed. The composition comprises (i) thermoplastic polycarbonate resin (ii) about 0.01 to 3 percent of a compound selected from the group consisting of phosphite and phosphonite and (iii) an additive amount of an oligomer or polymer the structure of which features at least one pendant cyclic iminoether group per molecular chain. The additive amount is that which is sufficient to improve the resistance of the polycarbonate resin to hydrolysis.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: August 22, 2000
    Assignee: Bayer Corporation
    Inventors: Sivaram Krishnan, James B. Johnson, Donald K. Booher
  • Patent number: 6093757
    Abstract: A composition and method for encapsulating a photovoltaic device which minimizes discoloration of the encapsulant. The composition includes an ethylene-vinyl acetate encapsulant, a curing agent, an optional ultraviolet light stabilizer, and/or an optional antioxidant. The curing agent is preferably 1,1-di-(t-butylperoxy)-3,3,5-trimethylcyclohexane; the ultraviolet light stabilizer is bis-(N-octyloxy-tetramethyl) piperidinyl sebacate and the antioxidant is selected from the group consisting of tris (2,4-di-tert-butylphenyl) phosphite, tetrakis methylene (3,5-di-tert-butyl-4-hydroxyhydrocinnamate) methane, octadecyl 3,5-di-tert-butyl-4-hydroxyhydrocinnamate, and 2,2'-ethylidene bis(4,6-di-t-butylphenyl) fluorophosponite. The composition is applied to a solar cell then cured. The cured product contains a minimal concentration of curing-generated chromophores and resists UV-induced degradation.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: July 25, 2000
    Assignee: Midwest Research Institute
    Inventor: Fu-Jann Pern
  • Patent number: 6066695
    Abstract: A thermoplastic synthetic resin, especially high-density polyethylene, has its diffusion coefficient especially for hydrocarbons, reduced by the addition of 2 to 8% by weight of an additive consisting essentially of at least one phenoxy and/or epoxy resin, and at least one further component selected from the group which consists of at least one radical forming agent and at least one graft coploymerization catalyst, and optional quantities of an antioxidant selected from the group which consists of at least one phenolic antioxidant, at least one phosphitic antioxidant and mixtures thereof, at least one organosilane ester, at least one UV stabilizer, at least one antistatic composition, and polypropylene.
    Type: Grant
    Filed: August 25, 1998
    Date of Patent: May 23, 2000
    Assignee: Roth Werke GmbH
    Inventors: Manfred Roth, Jurgen Dreier
  • Patent number: 6057016
    Abstract: Polyester resins with a low formaldehyde content, to which an antioxidant acting as free-radical scavenger is added, containing less than 150 ppb of formaldehyde and having a formaldehyde generation rate of less than 15 ppb/min at 290.degree. C.
    Type: Grant
    Filed: March 15, 1999
    Date of Patent: May 2, 2000
    Assignee: Sinco Ricerche S.p.A.
    Inventors: Hussein Al Ghatta, Antonio Pinto
  • Patent number: 6022628
    Abstract: A polymer composition having improved balanced mechanical and optical properties comprising (i) a random copolymer comprising from about 0.8% to about 20% by weight of butene-1 and from about 80% to about 99.2% by weight of propylene, and (2) from about 0%-0.35% by weight of polymer composition of a synthetic amorphous silica antiblock agent.
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: February 8, 2000
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Ananda Mohan Chatterjee, Randolph Neil Campbell
  • Patent number: 6010760
    Abstract: A thermoplastic resin composition comprising a thermoplastic resin (A) not forming an anisotropic melt phase and a liquid crystal polymer (B) capable of forming an anisotropic melt phase, an injection molding method thereof and an injection molded article capable of providing a thin molded article having excellent mechanical strength. A thermoplastic resin composition (C) comprises 99 to 50 wt. % of the thermoplastic resin (A) and 1 to 50 wt. % of the liquid crystal polymer (B). The liquid crystal polymer (B) is microscopically dispersed in an island form in the matrix phase of the thermoplastic resin (A) so that when the composition (C) is heat-treated at a temperature not lower than the melting point of the liquid crystal polymer (B) under a non-load state and is then cooled, the liquid crystal polymer (B) has a weight average particle diameter within the range of 10 to 40 micrometers and at least 80 wt. % thereof has a particle diameter within the range of 0.5 to 60 micrometers.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: January 4, 2000
    Assignee: Polyplastics Co., Ltd.
    Inventors: Hirotaka Miyazaki, Tomoyuki Aketa, Haruji Murakami, Takayuki Ishikawa, Kazuhito Kobayashi, Ayako Migita
  • Patent number: 5980777
    Abstract: A liquid crystalline resin which comprises at least one kind of liquid crystalline polymer selected from liquid crystalline polyester and liquid crystalline polyester amide, both forming an anisotropic molten phase, and an inorganic phosphorus compound, said liquid crystalline resin having an absorbance of 0.5 or less at 380 nm when measured over an optical path length of 10 mm in a 0.5 wt % solution in a 1:1 mixed solvent of pentafluorophenol and chloroform (by weight). It is useful as engineering plastics because of improved color, heat resistance, and hydrolytic resistance.
    Type: Grant
    Filed: December 24, 1997
    Date of Patent: November 9, 1999
    Assignee: Toray Industries, Inc.
    Inventors: Hideyuki Umetsu, Yoshiki Makabe, Toshihide Inoue
  • Patent number: 5969015
    Abstract: Compositions, comprising (i) a halogen-containing polymeric material, and(ii) at least one phosphite of formula I ##STR1## wherein n is a number from 1 to 6,R is a divalent linking group of formulae as defined herein as well as of novel compounds of formula I and their use as stabilisers.
    Type: Grant
    Filed: September 10, 1997
    Date of Patent: October 19, 1999
    Assignee: Witco Vinyl Additives GmbH
    Inventors: Horst Zinke, Karl Josef Kuhn, Wolfgang Wehner
  • Patent number: 5948833
    Abstract: A water-borne road marking paint composition which includes a chelating agent capable of chelating iron ions to form a substantially colorless complex is provided. A road marking produced from the traffic paint of the present invention substantially reduces or prevents yellowing of white road marking from iron and iron compound debris strewn on the road surfaces. A method of reducing or preventing yellowing of a newly-applied road marking on a road surface of a water-borne road marking paint is also disclosed. The method comprises incorporating in the water-borne road marking paint a chelating agent capable of chelating iron ions to form a substantially colorless complex. Further reduction of yellowing of the road marking is observed when a pigment dispersant is incorporated in the water-borne road marking paint.
    Type: Grant
    Filed: May 19, 1997
    Date of Patent: September 7, 1999
    Assignee: Rohm and Haas Company
    Inventors: Josef Hans Jilek, Angelo Sanfilippo, Donald Craig Schall, Andrew Paul Trapani
  • Patent number: 5929148
    Abstract: The present invention provides polyhexamethylene adipamide fibers significantly excellent in thermal yellowing resistance, and a process for producing the same. The improved polyhexamethylene adipamide fibers have adaptability to fibers for clothing which adaptability is comparable to that of poly-.epsilon.-capramide fibers and polyester fibers. The improved polyhexamethylene adipamide fibers can be obtained by either (1) melt spinning a polyhexamethylene adipamide simultaneously containing 2,4-bis(alkylthio)-6-(3,5 -dialkyl-4-hydroxyanilino)-1,3,5-triazine and a compound selected from the group consisting of phosphorous acid, hypophosphorous acid and derivatives of these acids, or (2) melt spinning the fibers having the sum of an amino end group concentration (?--NH.sub.2)!) and a carboxyl end group concentration (?--COOH!) of 70 to 200 meq/kg, satisfying the condition: ?--COOH!.ltoreq.60 meq/kg, and containing from 0.005 to 0.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: July 27, 1999
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Katsuya Shimizu, Hiroshi Tomiyama
  • Patent number: 5922828
    Abstract: A novel process to produce polyethylene terephthalate (PET) using a specific catalyst stabilizer system is described. The catalyst stabilizer system is specific for producing PET wherein the polycondensation catalyst is a titanium and the stabilizer possesses an irreversible oxidation potential of at least +2.0 volts versus SCE. The novel process results in PET having acceptable color and low acetaldehyde content.
    Type: Grant
    Filed: August 13, 1997
    Date of Patent: July 13, 1999
    Assignee: Hoechst Celanese Corp.
    Inventor: David Anthony Schiraldi
  • Patent number: 5919848
    Abstract: Disclosed are magnetic polyester compositions comprising a thermoplastic polyester polymer, certain epoxy-containing ethylene polymers, an aromatic phosphite compound, and elemental or magnetite iron.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: July 6, 1999
    Assignee: Eastman Chemical Company
    Inventors: Larry Allen Minnick, Thomas Joseph Pecorini
  • Patent number: 5916938
    Abstract: The present invention relates to a solution of a polyacrylate resin in one or more organic solvents, containing one or more phosphites, characterized in that the solution contains from 0.05 to 1.0% by weight, based on the solids content of the acrylate resin solution, of one or more phosphites and in that the phosphite has been added, either partially or entirely, after the polymerization reaction, at a temperature below the polymerization temperature.The present invention further relates to coating compositions which contain these polyacrylate resin solutions, their use in processes for producing a multilayer protective and/or decorative coating on a substrate surface, and the use of the coating compositions in the automotive refinishing sector.
    Type: Grant
    Filed: January 15, 1997
    Date of Patent: June 29, 1999
    Assignee: BASF Coatings AG
    Inventors: Michael Brunnemann, Heinz-Peter Rink, Harald Borgholte, Werner-Alfons Jung, Peter Hoffmann
  • Patent number: 5912289
    Abstract: Disclosed is a thermally stable aromatic polycarbonate composition comprising an aromatic polycarbonate, which is substantially free of a chlorine-containing compound, and a thermal stabilizer, the aromatic polycarbonate comprising a plurality of aromatic polycarbonate chains, each comprising recurring aromatic carbonate units and having a terminal aryl carbonate group and a terminal hydroxyl group, wherein each recurring unit has a divalent aromatic or pyridylene group comprising one or more divalent constituent aromatic or pyridylene groups, and wherein the plurality of aromatic polycarbonate chains collectively contain at least one constituent aromatic or pyridylene group substituted with at least one methyl group in an amount of 0.0001 or less in terms of the molar ratio of the methyl group substituted constituent group or groups relative to all constituent groups in the aromatic polycarbonate chains.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: June 15, 1999
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Kyosuke Komiya, Hiroshi Hachiya
  • Patent number: 5897959
    Abstract: A biaxially extended polyester film which comprises a polyester resin having ethylene A biaxially oriented polyester film comprises a polyester resin having ethylene terephthalate and ethylene isophthalate repeating units in a weight ratio of 90:10 to 75:25; 0.02 to 0.06 weight % of an organic phosphite or phosphate ester; and 0.01 to 0.05 weight % of a hindered phenol compound, wherein the film possesses good thermal stability, processability, and thermal adhesive strength to a metal surface and is useful in forming the inner laminate layer of a metal container.
    Type: Grant
    Filed: November 20, 1996
    Date of Patent: April 27, 1999
    Assignee: SKC Limited
    Inventors: Sang-Il Kim, Byoung-Ho Cho
  • Patent number: 5889099
    Abstract: A thermoplastic resin composition improved in terms of prevention of mold contamination, comprising the following components (A) to (G):component (A): 55 to 75% by weight of a propylene-ethylene block copolymer including a propylene homopolymer moiety having a melt flow rate of 15 to 50 g/10 min. and an isotactic pentad fraction of at least 0.97, said block copolymer having a melt flow rate of 10 to 30 g/10 min. and an ethylene content of 2 to 6% by weight,component (B): 0 to 10% by weight of an ethylene-propylene copolymer rubber having a melting temperature of 30.degree. to 60.degree. C. and a melt flow rate of 0.2 to 2 g/10 min.,component (C): 5 to 15% by weight of an ethylene-.alpha.-olefin copolymer rubber having a melting temperature of 60.degree. to 100.degree. C. and a melt flow rate of 0.3 to 2 g/10 min.,component (D): 15 to 25% by weight of a talc having an average particle diameter of up to 5 .mu.m and a specific surface area of at least 3.5 m.sup.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: March 30, 1999
    Assignees: Japan Polychem Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Takayuki Nagai, Toshio Niimi, Yukihito Zanka, Ikuo Tsutsumi, Hiroki Sato
  • Patent number: 5883168
    Abstract: A profiled element for use as a wiping strip in a motor vehicle screen wiper is made of rubber or an elastomer, and has a coating formed by applying a solution to the profiled element. The solution comprises a powder of graphite for example, which is dispersed in a resin, and the solution includes a proofing agent for making the coating impermeable.
    Type: Grant
    Filed: June 13, 1997
    Date of Patent: March 16, 1999
    Assignee: Valeo Systemes D'Essuyage
    Inventor: Michel Oulie
  • Patent number: 5877242
    Abstract: A molding material comprises styrene/butadiene block copolymers obtainable by anionic polymerization and from 0.01 to 1% by weight, based on the polymer, of .alpha.-tocopherol.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: March 2, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Niessner, Wolfgang Loth, Konrad Knoll, Norbert Guntherberg, Paul Naegele, Hubert Trauth, Jurgen Pohrt
  • Patent number: 5877260
    Abstract: A thermoplastic synthetic resin, especially high-density polyethylene, has its diffusion coefficient especially for hydrocarbons, reduced by the addition of 2 to 8% by weight of an additive consisting essentially of at least one phenoxy resin, and at least one further component selected from the group which consists of at least one radical forming agent and at least one graft coploymerization catalyst, and optional quantities of an antioxidant selected from the group which consists of at least one phenolic antioxidant, at least one phosphitic antioxidant and mixtures thereof, at least one organosilane ester, at least one UV stabilizer, at least one antistatic composition, and polypropylene.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: March 2, 1999
    Assignee: Roth Werke GmbH
    Inventors: Manfred Roth, Jurgen Dreier
  • Patent number: 5874494
    Abstract: Phosphites which are useful as a deterioration inhibitor for organic material and are represented by the following formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.5 and R.sup.6 represent a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group;R.sup.3 represents hydrogen atom or an alkyl group;R.sup.4 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an alkylcycloalkyl group, an aralkyl group or a phenyl group, or the two R.sup.4 together form a direct bond, a group represented by --S-- or an optionally substituted methylene group;A represents an alkylene group;W represents a group represented by --O-- or a group represented by --NR.sup.7wherein R.sup.7 represents a hydrogen atom, an alkyl group, etc.;B represents an alkylene group;and one of Y and Z represents a hydroxyl group, an alkoxy group or an aralkyloxy group, and the other one represents hydrogen atom or an alkyl group.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: February 23, 1999
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Naoki Inui, Taketoshi Kikuchi, Kanako Fukuda, Takashi Sanada
  • Patent number: 5852086
    Abstract: An antigel agent composed of four types of antioxidants that allows polyamides to be blended with acrylonitrile/butadiene polymers with minimum generation of gels and yields a blend which can be extruded or sheeted to give a uniformed shaped product, for example, sheets and molded articles and is essentially free of plugging the screens of extruder used to extrude hose tube or sheet.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: December 22, 1998
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: James Walter Horvath, Faith Michelle Howard
  • Patent number: 5852085
    Abstract: Disclosed are transparent blends of a polyetherimide, at least one resin selected from the group consisting of polycarbonate resins, poly(ester-carbonate) resins, and polyarylate resins, and an effective amount of a catalyst to provide transparency to the blends. In addition to being transparent, the blends have good ductility as well as high flexural and tensile properties. The yellowness index of the compositions can be improved with the addition of a phosphite.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: December 22, 1998
    Assignee: General Electric Company
    Inventors: Sterling Bruce Brown, Stephen Michael Copper, Brenda A. Giles
  • Patent number: 5847057
    Abstract: The invention relates to heat-curable coating compounds containing a carboxyl-functional polyester produced by a condensation reaction from aliphatic and/or cycloaliphatic and/or aromatic polycarboxylic acids and anhydrides, a .beta.-hydroxyalkylamide and special stabilizers.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: December 8, 1998
    Assignee: EMS--Inventa AG
    Inventors: Andreas Kaplan, Manfred Wenzler
  • Patent number: 5843339
    Abstract: Phosphites represented by the general formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.5 independently represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms, an alkylcycloalkyl group having 6 to 12 carbon atoms, an aralkyl group having 7 to 12 carbon atoms or a phenyl group; R.sup.3 and R.sup.6 independently represent a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; X.sub.1 is a dihydric alcohol residue, wherein HO--X.sub.1 --OH defines the corresponding dihydric alcohol from which residue X.sub.1, is obtained; and X.sub.2 is a direct bond or an alkylene group having 1 to 8 carbon atoms; and the phosphites are useful as stabilizers for organic materials.
    Type: Grant
    Filed: October 1, 1996
    Date of Patent: December 1, 1998
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kanako Fukuda, Naoki Inui
  • Patent number: 5833886
    Abstract: The thermostability of an aromatic polyphosphate composition an be improved by the addition of an effective amount of a hydroxy-terminated aromatic polyphosphate composition for such.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: November 10, 1998
    Assignee: Akzo Nobel NV
    Inventors: Sophia Dashevsky, Danielle A. Bright
  • Patent number: 5811478
    Abstract: Molding compositions comprising certain epoxy compounds, at least one antioxidant, an unsaturated thermosetting resin and an olefinically unsaturated monomer are disclosed. The disclosed compositions can provide enhanced yellowing resistance to articles molded from the compositions, particularly when the molding compositions contain white pigment. Processes from molding articles having enhanced yellowing resistance are also disclosed.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: September 22, 1998
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Gary Charles Rex, Kenneth Earl Atkins
  • Patent number: 5773498
    Abstract: A diphosphite is provided derived from phosphorous trihalide, tetra alkyl hindered bisphenol, and a neoalkyl diol. The phosphites exhibit improved stability and are useful as thermal oxidative stabilizers for thermoplastic compositions.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: June 30, 1998
    Assignee: General Electric Company
    Inventor: James A. Mahood
  • Patent number: 5741838
    Abstract: This invention relates to halogen-free flame retardant thermoplastic moulding compounds prepared from polycarbonate and graft polymer, which may contain thermoplastic copolymer and/or polyalkylene terephthalate, wherein the flame retardant used is polyphenylene oxide combined with phosphorus compounds.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: April 21, 1998
    Assignee: Bayer AG
    Inventors: Karl Fuhr, Thomas Eckel, Dieter Wittmann, Heinrich Alberts
  • Patent number: 5736599
    Abstract: A diphosphite is provided derived from phosphorous trihalide, tetra alkyl hindered bisphenol, and a neoalkyl diol. The phosphites exhibit improved stability and are useful as thermal oxidative stabilizers for thermoplastic compositions.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: April 7, 1998
    Assignee: General Electric Company
    Inventor: James A. Mahood
  • Patent number: 5717014
    Abstract: A polyphenylene ether resin composition containing the following Components (A) to (D) according at the following formulation ratio.(A) 50 to 99.5 parts by weight of a polyphenylene ether(B) 0.5 to 50 parts by weight of a partially hydrogenated aromatic alkenyl compound-conjugated diene block copolymer having a hydroxy group and based on 100 parts by weight of the above resin composition,(C) 0 to 950 parts by weight of a thermoplastic resin and(D) 0 to 10 parts by weight of a phosphorous acid triester.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: February 10, 1998
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Ichiro Ohkawachi, Kiyoji Takagi, Koji Nishida
  • Patent number: 5714527
    Abstract: A water-borne road marking paint composition which includes a chelating agent capable of chelating iron ions to form a substantially colorless complex is provided. A road marking produced from the traffic paint of the present invention substantially reduces or prevents yellowing of white road marking from iron and iron compound debris strewn on the road surfaces. A method of reducing or preventing yellowing of a newly-applied road marking on a road surface of a water-borne road marking paint is also disclosed. The method comprises incorporating in the water-borne road marking paint a chelating agent capable of chelating iron ions to form a substantially colorless complex. Further reduction of yellowing of the road marking is observed when a pigment dispersant is incorporated in the water-borne road marking paint.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: February 3, 1998
    Assignee: Rohm and Haas Company
    Inventors: Josef Hans Jilek, Angelo Sanfilippo, Donald Craig Schall, Andrew Paul Trapani
  • Patent number: 5703150
    Abstract: Phosphonite and phosphonate compounds ##STR1## wherein X.sup.1, X.sup.2, X.sup.3 and X.sup.4 are each independently a group of the formula ##STR2## wherein R is a hydrogen atom or a methyl group, p is 0 or 1, q is independently 0 or 1 with regard to each repeat unit, and m is an integer of 2 to 10, a stabilizer for organic materials comprising said compound and a stabilized organic material comprising said compound. The compound of the present invention is less volatile at high temperatures. The use of the compound of the present invention as a stabilizer for organic materials affords an extremely useful organic material which is superior in heat stability and free of degradation caused by oxidation. The compound of the present invention has excellent compatibility with the above-mentioned organic materials and hardly migrate from the organic materials.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: December 30, 1997
    Assignee: Yoshitomi Pharmaceutical Industries, Ltd.
    Inventors: Tetsuji Ike, Takeshi Inoue, Yoshihiro Ozaki
  • Patent number: 5698621
    Abstract: There is disclosed a printable self-clinging flexible film containing a polymerized PVC-based resin, a primary plasticizer and a stabilizer. The film exhibits high tackiness and surface tension, and printing ink may be applied directly to the surface of the film. Compositions for forming the film, and related methods are also disclosed.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: December 16, 1997
    Assignees: Achilles USA, Inc., Achilles Corporation
    Inventors: Bach T. Nguyen, Tomiki Matsumoto, Toshihiro Katagiri
  • Patent number: 5695869
    Abstract: Melt-blown microfiber webs are prepared from polyarylene sulfide polymers, particularly polyphenylene sulfide. A small amount of a phosphite or phosphonite compound is added to the extruder feedstock. The additive essentially eliminates spurious polymer particle formation at the extruder die openings, even over sustained production periods. The polyarylene sulfide microfiber webs so produced are thus essentially free of spurious particulates, and the web defects which may be caused by such particulates.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: December 9, 1997
    Assignee: Hoechst Celanese Corporation
    Inventors: Andrew Bernard Auerbach, Warren Stephen Harmon
  • Patent number: 5679288
    Abstract: The disclosure teaches a blend of a predominant amount of a polyphosphate flame retardant and an effective amount of a liquid crystalline additive for viscosity reduction and compatibilization when blended with a thermoplastic polymer, as compared to use of just the polyphosphate flame retardant alone. The polyphosphate can comprise resorcinol bis(diphenyl phosphate) and/or its higher oligomers. The liquid can be a liquid crystalline segmented block copolymer or a liquid crystalline oligomer.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: October 21, 1997
    Assignee: Akzo Nobel nv
    Inventors: Ki-Soo Kim, Sophia Dashevsky, Alan Aaronson, Johst Herman Burk
  • Patent number: 5660931
    Abstract: A biaxilly oriented polymer film having improved surface properties, anti-static property and printability is prepared from a mixture of 70 to 99 parts by weight of a polyester resin containing not less than 60% by weight of repeating units of ethylene terephthalate and having an intrinsic viscosity ranging from 0.4 to 0.9 dl/g, and 1 to 30 parts by weight of polyolefin resin having a melting flow index ranging from 1.5 to 25 g/10 min, wherein said polyester film further comprises 0.1 to 25 parts by weight of an inorganic particle.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: August 26, 1997
    Assignee: SKC Limited
    Inventors: Moon-Sun Kim, Sang-Il Kim, Young-Jin Lee, Bum-Sang Kim, Ju-Ik Son
  • Patent number: 5646208
    Abstract: This invention relates to new and useful melt blend compositions of polyethylene terephthalate and polyethylene isophthalate, and melt blend compositions of polyethylene terephthalate with random copolymers of polyethylene terephthalate and polyethylene isophthalate wherein each polyester contains an interesterification inhibitor, wherein the resulting melt blend composition of polyesters retain the predominant characteristics of the predominant polyester by weight of the melt blend composition. The extruded polymer melt blend compositions have utility as shrink fiber and film, and as adhesives in the form of powdered binders for non-woven fabrics.
    Type: Grant
    Filed: July 19, 1996
    Date of Patent: July 8, 1997
    Assignee: Amoco Corporation
    Inventors: Wendell W. Cattron, Robert J. Schiavone
  • Patent number: 5589566
    Abstract: This invention relates to aliphatic copolyesters prepared from succinic acid (or derivatives thereof) and a process for the preparation thereof. The aliphatic copolyesters contain a second component, 1,4-butanediol, and a third component which is either a diacid or a diol (or derivatives thereof).
    Type: Grant
    Filed: March 1, 1996
    Date of Patent: December 31, 1996
    Assignee: Eastman Chemical Company
    Inventors: Alan W. White, Barry G. Pearcy, Allan S. Jones, Charles M. Buchanan, Robert M. Gardner
  • Patent number: 5587247
    Abstract: A resin composition for extrusion molding which has a melt flow rate (MFR) of from 0.5 to 30 g/10 min., having (A) 1 to 80 parts by weight of an ethylenic polymer which gives an endothermic peak in a temperature range of from 80.degree. to 120.degree. C. in a temperature rise thermogram as measured by a differential scanning calorimeter, has a melt flow rate (MFR) of from 0.5 to 50 g/10 min., and is prepared by high-pressure radical polymerization, (B) 5 to 80 parts by weight of a copolymer of ethylene and an .alpha.-olefine containing 3 to 12 carbon atoms which gives at least one endothermic peak in a temperature range of from 110.degree. to 130.degree. C. in the temperature rise thermogram as described above, has a melt flow rate (MFR) of from 0.5 to 30 g/10 min. and a density of from 0.900 to 0.935 g/cm.sup.3 and (C) 5 to 70 parts by weight of the copolymer of ethylene and an .alpha.-olefin containing 3 to 12 carbon atoms which has a melt flow rate (MFR) of from 0.5 to 30 g/10 min. and a density of from 0.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: December 24, 1996
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kohji Kubo, Shoichi Nezu, Fumio Ishibashi, Hiroyuki Harada, Yuji Shigematsu
  • Patent number: 5580916
    Abstract: 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: Grant
    Filed: March 9, 1994
    Date of Patent: December 3, 1996
    Assignee: Enichem, Synthesis S.p.A.
    Inventors: Enrico Traverso, Franco Rivetti, Lucio Spelta
  • Patent number: 5580924
    Abstract: Reduced gloss polycarbonate graft polymer blends are provided by a process which involves compounding styrene-acrylonitrile copolymer in the presence of an electrophilic reagent and preferably an acid to form gels, and then compounding the resultant gels with polycarbonate, a styrene-acrylonitrile copolymer and ABS graft polymer to form reduced gloss PC/ABS/SAN composition. The process limits side reactions during gel formation by preparing the gels first and then compounding the gels with the other resin materials. The blends are useful as molding resins and the gelled acrylonitrile polymer is useful as a gloss reducing additive.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: December 3, 1996
    Assignee: General Electric Company
    Inventors: Robert H. Wildi, Keith E. Cox, Edward J. Fewkes