Phosphorus Bonded Directly To Three Chalcogen Atoms Only, E.g., Phosphite, Etc. Patents (Class 524/128)
  • Patent number: 6649677
    Abstract: It has been discovered that the fire resistance properties of polycarbonate sheet can be greatly enhanced by significantly reducing the viscosity of the resin used to manufacture the sheet. Moreover, the fire resistance of the sheet can be further enhanced by carefully controlling the content of phosphorous-based stabilizer, in combination with the processing release agent, within a specific range.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: November 18, 2003
    Assignee: General Electric Company
    Inventors: Marja A. Jaatinen, Johanes M. Goossens
  • Patent number: 6638997
    Abstract: Hindered amines substituted on the N-atom with an —O—E—OH moiety are particularly effective in stabilizing polyolefin and automotive coating compositions against the deleterious effects of oxidative, thermal and actinic radiation where the presence of the OH group on the compounds adds important properties not attainable by the use of normal —O—E moieties.
    Type: Grant
    Filed: September 27, 2001
    Date of Patent: October 28, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: James P. Galbo, Gerald A. Capocci, Nancy N. Cliff, Robert E. Detlefsen, Michael P. DiFazio, Ramanathan Ravichandran, Peter Solera
  • Publication number: 20030193110
    Abstract: An article of manufacture comprises an ultrahigh molecular weight polyethylene (UHMWPE) mixed with a processing oil and a lubricant selected from the group consisting of fatty acid esters, ethoxylated fatty acid esters, glycol esters, PEG esters, glycerol esters, ethoxylated esters, sorbitol esters, ethoxylated sorbitol esters, aromatic ethoxylates, alcohol ethoxylates, mercaptan ethoxylates, modified ethoxylates, amide surfactants, phosphate esters, phosphonate esters, phosphite esters, alkyl sulfates, fatty acid ethers, alkyl ether sulfates, alkylaryl ether sulfates, sulfonates, naphthalene sulfonates, sulfosuccinates, sulfonated esters, sulfonated amides, alkyl ether carboxylates, alkylaryl ether carboxylates, quaternary amines, amino quaternary amines, ethoxylated amines, imidazoline derivatives, betaines, sultaines, aminopropionate, catechol derivatives, saturated fatty acids, unsaturated fatty acids, and combinations thereof. The method for making those articles is also disclosed.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 16, 2003
    Inventors: Joseph G. Yaritz, J. Kevin Whear
  • Patent number: 6612351
    Abstract: A pneumatic rubber tire is provided having inner and outer air retention quasi envelopes which individually substantially envelop the tire air chamber and which are comprised of a first inner quasi envelope as an integral innerliner and a second outer quasi envelope as a combination of sidewalls and tread. Such pneumatic tire is of a relatively conventional open toroidal shape. The innerliner and the sidewall-tread combination are termed as being quasi envelopes in a sense that a rigid rim, onto which the tire is to be mounted and inflated, is used to complete the closure of the tire's air chamber envelope.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: September 2, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: David John Zanzig
  • Publication number: 20030158306
    Abstract: The whiteness and stability of a polyolefin have been found to be improved upon addition of a first phosphite, an arylalkyl diphosphite, and a second phosphite selected from a second arylalkyl disphosphite or a triarylphosphite. In addition, the addition of a triarylphosphite with an arylalkyl disphoshite has been found to improve the hygroscopic nature and the hydrolytic stability of the arylalkyl disphosphite.
    Type: Application
    Filed: December 17, 2002
    Publication date: August 21, 2003
    Inventors: David R. Battiste, Mark K. Russell, William R. Coutant, Joseph R. Harder
  • Patent number: 6593004
    Abstract: This invention relates to novel extrusion coating compositions containing certain high melt flow, narrow molecular weight distribution polypropylene impact or random copolymers and composite articles comprising a substrate having such compositions melt extruded thereon.
    Type: Grant
    Filed: October 14, 1998
    Date of Patent: July 15, 2003
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Ananda M. Chatterjee
  • Patent number: 6583204
    Abstract: Thermoplastic moulding composition comprising at least 2 components chosen from the group consisting of aromatic poly(ester)carbonates, graft polymers of one or more vinyl monomers on one or more graft bases having a glass transition temperature of <10° C., thermoplastic vinyl (co)polymer and polyalkylene terephthalate and 0.5 to 20 parts by wt. phosphorus compound of the general formula (I).
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: June 24, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Eckel, Dieter Wittmann, Jörn Stölting, Michael Zobel
  • Patent number: 6583210
    Abstract: The present invention relates to a tire with a carbon black-containing, black-colored, circumferential tread of a cap/base construction, wherein said tread cap has a lug and groove configuration and wherein the outer surface of a major portion of said grooves are designed to be ground contacting, and a co-extruded thin outer non-carbon black-containing rubber layer of a non-black color wherein said outer rubber layer is integral with and circumferentially extends from the axial outer edge of said tread cap to include at least of a visible surface of at least one groove in said tread cap. In one aspect, said tread contains a pair of black colored, carbon black reinforced, tread miniwings which extend from the axial outer edge of the tread over a portion of the tire sidewall, wherein said thin outer rubber layer joins said miniwing and wherein said tread cap, tread base, tread miniwings and thin outer layer are co-extruded, co-cured and therefore integral with each other.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: June 24, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: David John Zanzig, George Frank Balogh, Paul Harry Sandstrom
  • Patent number: 6569957
    Abstract: There is described a novel blend composition comprising specified amounts of any polycarbonate and specified amounts of a specific copolyester comprising terephthalic acid, naphthalenedicarboxylic acid, 1,4-cyclohexanedicarboxylic acid, or mixtures thereof; isophthalic acid; and 1,4-cyclohexanedimethanol. Also described are films and sheets produced from the novel blend compositions that are thermoformable without having to pre-dry the films and sheets. Further, articles of manufacture produced from the novel blend compositions are described.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: May 27, 2003
    Assignee: Eastman Chemical Company
    Inventors: James Carl Williams, John Guthrie Thompson, Roy Lee Conn
  • Publication number: 20030096890
    Abstract: A non-xenoestrogenic phosphorus-containing stabilizer for organic materials is disclosed wherein the stabilizer is selected from the group consisting of phosphorus-containing compounds of the structures 1
    Type: Application
    Filed: November 7, 2002
    Publication date: May 22, 2003
    Inventors: Scott R. Archibald, Tracy L. Coffin-Werner
  • Patent number: 6545072
    Abstract: Disclosed is a film or sheet of a polypropylene resin composition comprising the following components (A), (B) and (C): (A) 100 parts by weight of a polypropylene resin, (B) from 0.001 to 1 part by weight of a phenolic antioxidant such as 1,3,5-tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanurate or the like, and (C) from 0.05 to 5 parts by weight of a hindered amine-based light stabilizer. Provided are filmy or sheet moldings of the polypropylene resin composition which color little even when stored indoors at relatively high temperatures; and also the polypropylene resin composition for the moldings.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: April 8, 2003
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Satoshi Tamura, Yutaka Azuma
  • Patent number: 6541549
    Abstract: A non-xenoestrogenic phosphorus-containing stabilizer for organic materials is disclosed wherein the stabilizer is selected from the group consisting of phosphorus-containing compounds of the structures wherein y in an integer of from 6 to 20, and where Z is a linking group, m is 0 or 1, n is an integer of at least 2, the asterisks are independently selected terminal groups, R1, R2, R3, R4, R5, R6, R7, and R8 are independently selected from the group consisting of hydrogen, alkyl groups, aralkyl groups, or halogen groups and Q is selected from the group consisting of where R11 is alkyl or aralkyl, and
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: April 1, 2003
    Assignee: Crompton Corporation
    Inventors: Scott R. Archibald, Tracy L. Coffin-Werner
  • Publication number: 20030050369
    Abstract: A vinylidene fluoride resin composition which is stable to heat at molding temperatures and is free from foaming and coloration, and molded products made by forming the vinylidene fluoride resin composition are provided. The vinylidene fluoride resin composition may comprise 100 parts by weight of a vinylidene fluoride homopolymer; 2-20 parts by weight of a polyester plasticizer; 0.01-0.5 parts by weight of a phosphite compound; and a phenol compound.
    Type: Application
    Filed: October 8, 2002
    Publication date: March 13, 2003
    Inventors: Seiichi Ohira, Kazuyuki Munakata, Toshiya Mizuna, Nobuyuki Masumura
  • Patent number: 6531530
    Abstract: The present invention provides a flame retardant resin composition having excellent impact resistance, heat resistance, dimensional stability, and flame retardance. That is, it provides a flame retardant resin composition made up of: 100 parts by weight of a thermoplastic resin (A) containing: 80 to 10% by weight of (A-1) at least one of an aromatic polyester resin and a polyamide resin, 17 to 85% by weight of at least one of a rubber-containing copolymer of a vinyl cyanide and an aromatic vinyl (A-2) and a copolymer of a vinyl cyanide and an aromatic vinyl (A-3) and 3 to 40% by weight of (A-4) at least one of a polyphenylene ether resin and a polyphenylene sulfide resin, 1 to 60 parts by weight of a non-halogen, organic or inorganic flame retardant (B) and 100 parts by weight or less of a filler (C).
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: March 11, 2003
    Assignee: Daicel Chemical Industries, Ltd.
    Inventor: Takayuki Asano
  • Patent number: 6525128
    Abstract: This invention relates to a rubber composition comprised of a halogenated (e.g. brominated) copolymer of isobutylene and p-methyl styrene elastomer reinforced with synthetic particulate silica-based reinforcement together with an organo phosphite to aid in enhancing the silica reinforcement of the halogenated isobutylene copolymer elastomer. Preferably, the rubber composition is comprised of a combination of a brominated copolymer of isobutylene and p-methyl styrene and at least one diene-based elastomer. The invention further relates to an article of manufacture, including a tire, having at least one component comprised of such rubber composition.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: February 25, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventor: David John Zanzig
  • Patent number: 6525158
    Abstract: Recycled mixtures of plastics, predominantly thermoplastics, as predominantly produced in the household, in commerce and also in industry and useful material collections, can be stabilized against thermooxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and an inorganic compound from the series consisting of metal oxides, hydroxides and carbonates.
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: February 25, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Kurt Hoffmann, Heinz Herbst, Rudolf Pfaendner, Hans-Jürgen Sander, Franciszek Sitek
  • Patent number: 6521681
    Abstract: Organic materials which possess outstanding stability to oxidative, thermal or light-induced degradation comprise as stabilizers at least one compound of the benzofuran-2-one type and at least one compound of the sterically hindered amine type.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: February 18, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Jürg Zingg, Jean-Roch Pauquet, Christoph Kröhnke
  • Patent number: 6515063
    Abstract: The present invention relates to a tire having a rubber tread of a lug and groove configuration and which may be of a co-extruded cap/base construction; wherein at least a part of the visible portion of the tread is exclusive of carbon black and thereby of a color other than black. Such non-black colored rubber includes the outer surface of at least one of said tread lugs intended to be ground-contacting. In one aspect of the invention, said non-black colored rubber composition contains (A) a precipitated silica reinforcement which has been pre-treated with a hydrophobation agent and optionally also pre-treated with a coupling agent or (B) a precipitated silica which has been pre-treated with a hydrophobating agent and a coupling agent which does not from an alcohol byproduct upon reacting with hydroxyl groups (e.g. silanol groups) contained on the surface of said precipitated silica.
    Type: Grant
    Filed: February 1, 2001
    Date of Patent: February 4, 2003
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: David John Zanzig, Paul Harry Sandstrom
  • Patent number: 6512032
    Abstract: A vinylidene fluoride resin composition which is stable to heat at molding temperatures and is free from foaming and coloration, and molded products made by forming the vinylidene fluoride resin composition are provided. The vinylidene fluoride resin composition of the present invention comprises 100 parts by weight of a vinylidene fluoride resin, 2-20 parts by weight of a polyester plasticizer, 0.01-0.5 parts by weight of a phosphite compound. The vinylidene fluoride resin composition may further comprises a phenol compound.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: January 28, 2003
    Assignee: Kureha Chemical Industry Co., Ltd.
    Inventors: Seiichi Ohira, Kazuyuki Munakata, Toshiya Mizuno, Nobuyuki Masumura
  • Patent number: 6512033
    Abstract: In one aspect, this invention is a polyurethane sealant composition comprising (1) a urethane prepolymer having an isocyante functionality of at least about 2.0 and a weight average molecular weight of at least about 2,000; (2) a catalytic amount of a tin compound which catalyzes the reaction of isocyanate moieties with water or an active hydrogen containing compound; and (3) a stabilizing amount of an organophosphite which has an alkaryl ligand or both an aliphatic ligand and an aromatic ligand. The prepolymer may further comprises silane functionality or the composition may further comprise a compound or polymer which contains silane moieties and is compatible with the polyurethane prepolymer. The invention is also a method for bonding glass to a substrate which comprises contacting a sealant according to the invention with glass and another substrate with the sealant disposed between the glass and substrate and thereafter allowing the sealant to cure so as to bond the glass to the substrate.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: January 28, 2003
    Assignee: Essex Specialty Products Inc.
    Inventor: Ziyan Wu
  • Publication number: 20020183425
    Abstract: The present invention relates to a polymer composition which contains from 5.0% by weight to 95.0% by weight of at least one thermotropic liquid crystalline copolymer, from 5.0% by weight to 95.0% by weight of at least one thermoplastically processable polycarbonate and from 0.01 % by weight to 5.0% by weight of at least one reinforcing agent. The present invention furthermore relates to a process for the preparation of the polymer composition and its use.
    Type: Application
    Filed: December 18, 1997
    Publication date: December 5, 2002
    Inventors: DR. MICHAEL ROMER, ANASTASIOS DIMITRIADIS, DIRK RAUDIES
  • Publication number: 20020156162
    Abstract: A process for the production of polyolefin hollow articles comprises charging the polyolefin with a stabilizer combination comprising (a) at least one compound from the group of the organic phosphites or phosphonites, (b) one or more compounds selected from the group consisting of i.) hydroxylamine derivatives and ii.) amine oxide derivatives and (c) at least one compound from the group of the hindered amine stabilizers, filling this mixture into a mold, heating this mold in an oven to above 280° C., such that the stabilized polyolefin fuses, rotating the mold around at least 2 axes, the plastic spreading to the walls, and cooling the mold while still rotating, opening it and taking the resultant hollow article out.
    Type: Application
    Filed: January 8, 2002
    Publication date: October 24, 2002
    Inventor: Urs Leo Stadler
  • Publication number: 20020147257
    Abstract: The present invention relates to a tire having a rubber tread of a lug and groove configuration and which may be of a co-extruded cap/base construction; wherein at least a part of the visible portion of the tread is exclusive of carbon black and thereby of a color other than black. Such non-black colored rubber includes the outer surface of at least one of said tread lugs intended to be ground-contacting.
    Type: Application
    Filed: February 1, 2001
    Publication date: October 10, 2002
    Inventors: David John Zanzig, Paul Harry Sandstrom
  • Publication number: 20020143084
    Abstract: This invention relates to a rubber composition comprised of a halogenated (e.g. brominated) copolymer of isobutylene and p-methyl styrene elastomer reinforced with synthetic particulate silica-based reinforcement together with an organo phosphite to aid in enhancing the silica reinforcement of the halogenated isobutylene copolymer elastomer. Preferably, the rubber composition is comprised of a combination of a brominated copolymer of isobutylene and p-methyl styrene and at least one diene-based elastomer. The invention further relates to an article of manufacture, including a tire, having at least one component comprised of such rubber composition.
    Type: Application
    Filed: February 1, 2001
    Publication date: October 3, 2002
    Inventor: David John Zanzig
  • Publication number: 20020137823
    Abstract: A stabilized molding composition containing A) polyalkylene terephthalate and B) a small amount of an ester of phosphorous acid is disclosed. The composition which may further contain any of fillers, reinforcing agents, flame-proofing additives, aromatic poly(ester)-carbonate, elastomeric modifiers, and further conventional additives exhibits improved resistance to thermal hydrolysis.
    Type: Application
    Filed: October 22, 2001
    Publication date: September 26, 2002
    Inventors: Matthias Bienmuller, Karsten-Josef Idel, Friedemann Paul
  • Patent number: 6444733
    Abstract: A process for the production of polyolefin hollow articles comprises charging the polyolefin with a stabilizer combination comprising (a) at least one compound from the group of the organic phosphites or phosphonites, (b) one or more compounds selected from the group consisting of i.) hydroxylamine derivatives and ii.) amine oxide derivatives and (c) at least one compound from the group of the hindered amine stabilizers, filling this mixture into a mold, heating this mold in an oven to above 280° C., such that the stabilized polyolefin fuses, rotating the mold around at least 2 axes, the plastic spreading to the walls, and cooling the mold while still rotating, opening it and taking the resultant hollow article out.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: September 3, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Urs Leo Stadler
  • Patent number: 6441071
    Abstract: Improved polycarbonate resins are prepared comprising specific amounts of a cyanacrylic acid ester type UV absorber in combination with a synergistic phosphite type stabilizer and, optionally, a hindered phenol type stabilizer and/or a lactone type stabilizer. The polycarbonate compositions according to the invention can be used to prepare molded, shaped or otherwise fabricated articles having improved combinations of protection against UV radiation, color and color stability with reduced plate-out behavior during processing. The compositions are especially suitable for use in extrusion, blow molding, thermoforming, injection molding, injection blow molding, injection compression molding, film blow molding and foaming processes and provide improved parts or articles.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: August 27, 2002
    Assignee: Dow Global Technologies Inc.
    Inventor: Claude T. E. Van Nuffel
  • Patent number: 6441069
    Abstract: A flame-retardant resin composition comprising (A) 100 parts by weight of a styrenic resin, (B) 1 to 30 parts by weight of a phosphate ester compound and (C) 0.1 to 10 parts by weight of a phosphate ester compound having a specific structure, and amolding product formed of the same impart a high flame retardance to the styrenic resin without using an organic halogen compound, and are also excellent in mechanical properties, impact resistance and moldability.
    Type: Grant
    Filed: May 9, 2000
    Date of Patent: August 27, 2002
    Assignee: Toray Industries, Inc.
    Inventors: Masato Honma, Akiyoshi Tamai, Shinichi Tamura
  • Patent number: 6441070
    Abstract: The present invention relates to rubber compositions containing an elastomer and a trivalent phosphorous compound-silica complex.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: August 27, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Adel Farhan Halasa, David John Zanzig, Robert Charles Hirst
  • Publication number: 20020115760
    Abstract: The present application relates to a white, biaxially oriented, flame-retardant polyester film with at least one base layer which comprises, based on the weight of the base layer, from 2 to 60% by weight of a cycloolefin copolymer (COC), where the glass transition temperature of the COC is within the range from 70 to 270 ° C. The film also comprises from 0.5 to 30% by weight of flame retardant, based on the weight of the layer comprising the flame retardant. The film of the invention is suitable for packing foods or other consumable items which are sensitive to light and/or to air, or for use in industry, e.g. in the production of hot-stamping foils or as a label film, or for image-recording papers, printed sheets or magnetic recording cards.
    Type: Application
    Filed: February 12, 2001
    Publication date: August 22, 2002
    Inventors: Ursula Murschall, Herbert Peiffer, Gottfried Hilkert, Klaus Oberlaender
  • Publication number: 20020099117
    Abstract: The present invention relates to a polyamide resin composition having excellent weather resistance and coating adhesion property and more particularly, to the polyamide resin composition capable of direct painting without pretreatment of primer and maintaining excellent weather resistance for a long period of exposure outside by adding an appropriate amount of a weathering stabilizer and a coating adhesion improver.
    Type: Application
    Filed: October 9, 2001
    Publication date: July 25, 2002
    Inventors: Kie-Youn Jeong, Sang-Rok Lee, Hee-Won Seo
  • Patent number: 6420461
    Abstract: The present invention relates to novel compounds of the formula (III) in which the substituents are as defined in the description, to a process for their preparation and to mixtures with other compounds. The compounds of the formula (III) are suitable for stabilizing organic material against the effect of light and heat.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: July 16, 2002
    Assignee: Clariant GmbH
    Inventors: Thomas Stährfeldt, Mathias Mehrer, Matthias Zäh, Gerhard Pfahler
  • Patent number: 6420463
    Abstract: Hindered amines substituted on the N-atom with an -O-E-OH moiety are particularly effective in stabilizing polyolefin and automotive coating compositions against the deleterious effects of oxidative, thermal and actinic radiation where the presence of the OH group on the compounds adds important properties not attainable by the use of normal -O-E moieties.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: July 16, 2002
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: James P. Galbo, Gerald A. Capocci, Nancy N. Cliff, Robert E. Detlefsen, Michael P. DiFazio, Ramanathan Ravichandran, Peter Solera
  • Patent number: 6410205
    Abstract: The present invention relates to a photosensitive recording material comprising a base, a photopolymerisable layer and a covering layer containing a mixture of at least one water-soluble or at least water-dispersible polymer and at least one additive, the additive being selected from the group consisting of alkoxylated alkylenediamines, alkoxylated (C10-C25) alkanols, phosphoric acid (C1-C15) alkyl esters and phosphoric acid (C1-C15) alkyl esters and the amount of the additive being in the range of 0.001 to 10.0% by weight, relative to the total weight of the non-volatile components of the covering layer. The present invention also relates to a process for preparing an offset printing plate with this recording material.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: June 25, 2002
    Assignee: AGFA-Gevaert
    Inventors: Thomas Leichsenring, Thorsten Lifka, Mario Boxhorn
  • Patent number: 6403681
    Abstract: Hindered amines substituted on the N-atom with an —O—E—OH moiety are particularly effective in stabilizing polyolefin and automotive coating compositions against the deleterious effects of oxidative, thermal and actinic radiation where the presence of the OH group on the compounds adds important properties not attainable by the use of normal —O—E moieties.
    Type: Grant
    Filed: February 21, 2001
    Date of Patent: June 11, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: James P. Galbo, Gerald A. Capocci, Nancy N. Cliff, Robert E. Detlefsen, Michael P. DiFazio, Ramanathan Ravichandran, Peter Solera
  • Patent number: 6399683
    Abstract: A resin composition for extruded forms that has improved workability, and excellent properties with respect to transparency, heat resistance, low-temperature resistance, etc. The composition contains 50 to 99% by weight of component A, which is a copolymer of ethylene and &agr;-olefin, and 1 to 50% by weight of component B, which is an ethylene-containing polymer. The component A has: (a) a melt flow rate (MFR) of 0.1 to 5 g/10 min.; (b) a density D of 0.88 to 0.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: June 4, 2002
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Koji Yamamoto, Hajime Ikeno, Keiko Shichijo
  • Patent number: 6391951
    Abstract: The invention provides a copolymer of propylene and pentene, together with a process for producing such copolymer and a polymer composition. In the process, propylene and pentene are reacted in a reaction zone at a pressure of 60 kg/cm2 and temperature of 0-100° C. for 20-480 minutes in the presence of a Ziegler-Natta catalyst or catalyst system. The polymer composition has several components, namely the above copolymer, a phenolic stabilizer, an organic phosphite stabilizer, a thioether stabilizer and at least one metal salt of a higher aliphatic acid, with the proviso that at least one of the organic phosphite stabilizer, the thioether stabilizer and said salt must be present, so that up to two thereof can optionally be omitted.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: May 21, 2002
    Assignee: Sasol Technology (Proprietary) Limited
    Inventors: Dawid Johannes Joubert, Antonie Hermanus Potgieter, Ignatius Hendrik Potgieter, Ioan Tincul
  • Patent number: 6391949
    Abstract: Hindered amines substituted on the N-atom with an —O—E—OH moiety are particularly effective in stabilizing polyolefin and automotive coating compositions against the deleterious effects of oxidative, thermal and actinic radiation where the presence of the OH group on the compounds adds important properties not attainable by the use of normal —O—E moieties.
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: May 21, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: James P. Galbo, Gerald A. Capocci, Nancy N. Cliff, Robert E. Detlefsen, Michael P. DiFazio, Ramanathan Ravichandran, Peter Solera
  • Patent number: 6376584
    Abstract: Hindered amines substituted on the N-atom with an hydroxy-substituted alkoxy moiety are particularly effective in stabilizing organic polymer compositions against the deleterious effects of oxidative, thermal and actinic radiation where the presence of the OH group on the compounds adds important properties not otherwise attainable.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: April 23, 2002
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: James Peter Galbo, Gerald A. Capocci, Nancy N. Cliff, Robert E. Detlefsen, Michael P. DiFazio, Ramanathan Ravichandran, Peter Solera, Christophe Bulliard
  • Publication number: 20020040081
    Abstract: This invention discloses blends of phosphites comprising bis-(2,4-dicumylphenyl) pentaerythritol diphosphite and hindered phenol antioxidants useful as stabilizers against thermooxidative degradation of polymers during melt processing. Polymer compositions comprising the blends show improved resistance to thermooxidative degradation during melt processing as measured by melt flow index and yellowness index.
    Type: Application
    Filed: September 25, 2001
    Publication date: April 4, 2002
    Applicant: Dover Chemical
    Inventors: Daryl Stein, Don R. Stevenson, Satyan R. Kodali, Marc Nolen
  • Patent number: 6362260
    Abstract: Liquid organic phosphites of low volatility, based on pentaerythritol, alkyl alcohols and alkyl phenols, which are essentially phenol-free are disclosed. These phosphites are excellent stabilizers for polymers, especially PVC resins. The phenol-free phosphite stabilizers are compatible with mixed metal stabilizers and give excellent color and processing stability.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: March 26, 2002
    Assignee: Dover Chemical Corporation
    Inventors: Donald R. Stevenson, Duong Nguyen
  • Publication number: 20020006993
    Abstract: Disclosed are a propylene polymer having a high crystallinity of a boiled heptane-insoluble component contained therein, a high stereoregularity and an extremely long mesochain (continuous propylene units wherein directions of &agr;-methyl carbons are the same as each other), and a process for preparing said polymer. Also disclosed are a propylene block copolymer containing a crystalline polypropylene portion having a high crystallinity of a boiled heptane-insoluble component contained therein, a high stereoregularity and an extremely long mesochain, and a process for preparing said copolymer. Further disclosed is a propylene polymer composition comprising the above propylene polymer or propylene block copolymer and at least one stabilizer selected from a phenol type stabilizer, an organophosphite type stabilizer, a thioether type stabilizer, a hindered amine type stabilizer and a metallic salt of higher aliphatic acid.
    Type: Application
    Filed: July 6, 2001
    Publication date: January 17, 2002
    Inventors: Tetsunori Shinozaki, Kazumitsu Kawakita, Mamoru Kioka
  • Publication number: 20010053805
    Abstract: A non-xenoestrogenic phosphorus-containing stabilizer for organic materials is disclosed wherein the stabilizer is selected from the group consisting of phosphorus-containing compounds of the structures 1
    Type: Application
    Filed: November 1, 1999
    Publication date: December 20, 2001
    Inventors: SCOTT R. SRCHIBALD, TRACY L. COFFIN-WERNER
  • Publication number: 20010023270
    Abstract: A stabilizer composition for polymers is provided comprising bis(2,4-dicumylphenyl) pentaerythritol diphosphite and at least one metal salt of the lactic acid, and optionally one or more additional phosphites and other antioxidants.
    Type: Application
    Filed: April 12, 2001
    Publication date: September 20, 2001
    Inventors: Daryl L. Stein, Marc Nolen
  • Patent number: 6284822
    Abstract: Disclosed is a film or sheet of a polypropylene resin composition comprising the following components (A), (B) and (C): (A) 100 parts by weight of a polypropylene resin, (B) from 0.001 to 1 part by weight of a phenolic antioxidant such as 1,3,5-tris(4-t-butyl-3-hydroxy-2,6-dimethylbenzyl)isocyanurate or the like, and (C) from 0.05 to 5 parts by weight of a hindered amine-based light stabilizer. Provided are filmy or sheet moldings of the polypropylene resin composition which color little even when stored indoors at relatively high temperatures; and also the polypropylene resin composition for the moldings.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: September 4, 2001
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Satoshi Tamura, Yutaka Azuma
  • Publication number: 20010014708
    Abstract: A method of producing a thermotropic liquid crystalline copolyester having an extremely small amount of out-gases comprising the steps of: (1) charging in a reactor 5-100 mol % of aromatic hydroxycarboxylic acid, 0-47.5 mol % of aromatic dicarboxylic acid and 0-47.5 mol % of aromatic diol, so that the sum of mol % of each material is 100 mol % and the mol % of aromatic dicarboxylic acid and that of aromatic diol are substantially equal; (2) adding acetic anhydride of an amount which satisfies the formula, (B−C)/A≧1.04, “A” representing the total molar number of the hydroxy group in a reaction system, “B” representing the molar number of acetic anhydride to be added, and “C” representing the molar number of water present in the reaction system prior to addition of acetic anhydride; (3) acetylation; (4) melt polymerization; and (5) solid-phase polymerization.
    Type: Application
    Filed: March 15, 2001
    Publication date: August 16, 2001
    Applicant: NIPPON PETROCHEMICAL CO., LTD.
    Inventors: Satoshi Murouchi, Yoshikuni Yamada, Toshitaka Kobayashi
  • Patent number: 6268419
    Abstract: A method of producing a thermotropic liquid crystalline copolyester having an extremely small amount of out-gases comprising the steps of: (1) charging in a reactor 5-100 mol % of aromatic hydroxycarboxylic acid, 0-47.5 mol % of aromatic dicarboxylic acid and 0-47.5 mol % of aromatic diol, so that the sum of mol % of each material is 100 mol % and the mol % of aromatic dicarboxylic acid and that of aromatic diol are substantially equal; (2) adding acetic anhydride of an amount which satisfies the formula, (B−C)/A≧1.04, “A” representing the total molar number of the hydroxy group in a reaction system, “B” representing the molar number of acetic anhydride to be added, and “C” representing the molar number of water present in the reaction system prior to addition of acetic anhydride; (3) acetylation; (4) melt polymerization; and (5) solid-phase polymerization.
    Type: Grant
    Filed: March 29, 2000
    Date of Patent: July 31, 2001
    Assignee: Nippon Petrochemical Co., LTD
    Inventors: Satoshi Murouchi, Yoshikuni Yamada, Toshitaka Kobayashi
  • Patent number: 6251972
    Abstract: Single-material recycled thermoplastics from commercial and industrial waste can be stabilized against thermal oxidative degradation by adding a combination of a sterically hindered phenol with an organic phosphite or phosphonite and an inorganic compound from the series consisting of metal oxides, hydroxides and carbonates.
    Type: Grant
    Filed: March 21, 1995
    Date of Patent: June 26, 2001
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Kurt Hoffmann, Heinz Herbst, Rudolf Pfaendner, Franciszek Sitek
  • Patent number: 6225385
    Abstract: The present invention relates to a stabilizer mixture prepared by partially condensing PCl3 with 2,2′-dimethyl-4,4′-dihydroxy-5,5′-di-tert-butyldiphenyl sulfide, where the phosphorus content is from 2 to 4% by weight and the content of 2,2′-dimethyl-4,4′-dihydroxy-5,5′-di-tert-butyldiphenyl sulfide is from 0.5 to 50% by weight. The stabilizer mixture has very good solubility in organic solvents and in the polymer and has very good stabilizing action.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: May 1, 2001
    Assignee: Clariant GmbH
    Inventors: Thomas Stährfeldt, Alexander Lichtblau, Gerhard Pfahler, Karl Gaa
  • Patent number: 6218454
    Abstract: An acid-resistant, thermoplastic resin composition which is nonpoisonous and non-halogen and has an acid-resistance for a long period of time, the acid-resistant, thermoplastic resin composition containing a thermoplastic resin, 30 to 70% by weight of magnesium hydroxide which has a specific surface area of 20 m2/g or less and an average secondary particle diameter of 0.2 to 5.0 &mgr;m and is surface-treated with at least one surface-treating agent selected from a water-soluble silane-coupling agent, a phosphoric acid ester, a higher fatty acid or its alkali metal salt, and 1 to 20% by weight of a reaction type compatibilizing agent.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: April 17, 2001
    Assignee: Kyowa Chemical Industry Co., Ltd.
    Inventors: Tsutomu Nosu, Tomoko Tachifuji, Wataru Hiraishi