Two Or More Sulfur Atoms Patents (Class 524/331)
  • Patent number: 9567455
    Abstract: Provided are a rubber composition provided with excellent reinforcement properties by improving the dispersibility of fibers in a rubber component when the fibers are added to the rubber, a method for manufacturing the same, a vulcanized rubber, and a tire. A rubber composition comprising a rubber component and short fibers, wherein the short fibers are cationized. A method for manufacturing the rubber composition, comprising a mixing step for mixing cationized short fibers and rubber latex to prepare a rubber-short fiber mixed solution, and a drying step for drying the rubber-short fiber mixed solution to give a rubber composition.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 14, 2017
    Assignees: BRIDGESTONE CORPORATION, OJI HOLDINGS CORPORATION
    Inventors: Saaya Takaoka, Hideko Akai, Rie Shirahama, Yasutomo Noishiki, Yuichi Noguchi
  • Publication number: 20150104663
    Abstract: The invention concerns an olefinically unsaturated radial styrenic block copolymer having the general formula A-B—Y—(B-A)n wherein each A is independently a polymer block composed of at least 90 mol. % of an alkenyl aromatic hydrocarbon, each B is independently a polymer block composed of at least 90 mol. % of one or more conjugated dienes, Y is the remnant of a coupling agent, and n is an integer from 2 to 5. The invention is also an improved vulcanizer-free latex comprising water and the olefinically unsaturated radial styrenic block copolymer. Moreover, the invention concerns a process for preparing articles by coagulation dipping from the improved latex and dipped goods made from such latex.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 16, 2015
    Applicant: KRATON POLYMERS U.S. LLC
    Inventors: Wouter DE JONG, Maarten TROMP
  • Patent number: 8993666
    Abstract: For the purpose of improving rolling resistance and durability, the present invention provides a rubber composition for insulation of a tire comprising 0.2 to 4 parts by mass of (B) an alkylphenol-sulfur chloride condensate, and 20 to 59 parts by mass of (C) carbon black having a BET specific surface area of 25 to 50 m2/g based on 100 parts by mass of (A) a rubber component comprising 30 to 85% by mass of (a1) a natural rubber and/or an isoprene rubber, 0 to 70% by mass of (a2) at least one styrene butadiene rubber selected from the group consisting of an emulsion-polymerized styrene butadiene rubber, a solution-polymerized styrene butadiene rubber and a modified styrene butadiene rubber, and 0 to 60% by mass of (a3) a butadiene rubber, and a tire having insulation prepared from the rubber composition.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: March 31, 2015
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Tatsuya Miyazaki
  • Patent number: 8815040
    Abstract: An ink-jettable adhesive composition comprising a polyurethane dispersion and a stabilizer is produced that can be used to form an image transfer system. The image transfer system generally comprises an adhesive layer formed from the adhesive composition, an ink image, and a removable transfer substrate. The image transfer system is capable of depositing the ink image and adhesive layer onto the surface of a textile. The resulting adhered ink image and adhesive layer can produce a durable and vivid image on a large variety of textiles.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: August 26, 2014
    Inventor: Donald D. Sloan
  • Patent number: 8735264
    Abstract: The present invention is a temporary adhesive composition comprising: (A) non-aromatic saturated hydrocarbon group-containing organopolysiloxane; (B) an antioxidant; and (C) an organic solvent, wherein the component (A) corresponds to 100 parts by mass, the component (B) corresponds to 0.5 to 5 parts by mass, and the component (C) corresponds to 10 to 1000 parts by mass. There can be provided a temporary adhesive composition that has excellent thermal stability while maintaining solvent resistance and a method for manufacturing a thin wafer using this.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: May 27, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroyuki Yasuda, Masahiro Furuya, Michihiro Sugo, Shohei Tagami, Hideyoshi Yanagisawa
  • Publication number: 20140127504
    Abstract: Provided is a urethane-based pressure-sensitive adhesive that is extremely excellent in adhesive residue-preventing property. Also provided is a surface protective film using such urethane-based pressure-sensitive adhesive in its pressure-sensitive adhesive layer, the surface protective film being extremely excellent in adhesive residue-preventing property. Also provided is an optical member or electronic member to which such surface protective film is attached. The urethane-based pressure-sensitive adhesive is a urethane-based pressure-sensitive adhesive including a polyurethane-based resin, in which: the polyurethane-based resin includes a polyurethane-based resin obtained by curing a composition containing a polyol (A) and a polyfunctional isocyanate compound (B); and the polyurethane-based resin contains a deterioration-preventing agent.
    Type: Application
    Filed: October 29, 2013
    Publication date: May 8, 2014
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shogo SASAKI, Toru ISEKI, Shou UCHIDA, Masahiko ANDO
  • Patent number: 8674015
    Abstract: A rubber composition for sidewall and a tire having sidewall using thereof as well as a rubber composition for clinch and a tire having clinch using thereof that adjust scorch time and suppress surface bloom, reduce rolling resistance, can obtain sufficient rigidity as sidewall and clinch, and can improve elongation at break and durability is disclosed. Specifically, a rubber composition for sidewall and a rubber composition for clinch including specific amount of an alkylphenol-sulfur chloride condensate indicated by the formula (B1): and specific filler, based on a rubber component including specific amount of a natural rubber and/or an isoprene rubber and a butadiene rubber and/or an epoxidized natural rubber, and a tire having sidewall using thereof and clinch using thereof is disclosed.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: March 18, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Tatsuya Miyazaki
  • Patent number: 8674014
    Abstract: A rubber composition for a sidewall is disclosed, which includes a specific amount of an alkylphenol-sulfur chloride condensate indicated by the formula (B1): and a specific filler, based on a rubber component including a specific amount of a natural rubber and/or an isoprene rubber and a modified butadiene rubber. A tire having the above sidewall is also disclosed.
    Type: Grant
    Filed: September 24, 2008
    Date of Patent: March 18, 2014
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Tatsuya Miyazaki
  • Patent number: 8633266
    Abstract: A stabilizer composition for halogenated polymers comprising at least one zinc salt of a carboxylic acid and/or of a ?-diketone, comprising a metal salt of the carboxylic acid selected from the group of the following metals: Li, Na, K, Mg, Ca, Al and Zn; a metal salt of the ?-diketone selected from the group of the following metals: Li, Na, K, Mg, Ca, Al and Zn; and an amino alcohol derivative.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: January 21, 2014
    Assignee: Akdeniz Kimya San. ve Tic. A.S.
    Inventors: Cagan Heris, Tarkan Uysal, Michael Schiller
  • Publication number: 20140017494
    Abstract: The invention provides an insulation composition for an electric cable containing a polyolefin, a permanent (non-migrating) antistatic agent, a phenolic antioxidant, and a peroxide. Preferably, the permanent antistatic agent is present at about 0.5-5 percent by weight of the total composition, preferably about 0.8-3 percent, and more preferably about 0.9-2.5 percent.
    Type: Application
    Filed: July 10, 2013
    Publication date: January 16, 2014
    Applicant: General Cable Technologies Corporation
    Inventors: Jianmin LIU, Vijay MHETAR, Sean W. CULLIGAN
  • Publication number: 20140005317
    Abstract: A composition containing a stabilizer that does not turn yellow upon curing and acts as a polymerization inhibitor during production and storage of a (meth)acrylic modified (hydrogenated) polybutadiene. The curable composition contains 0.1-99.9999% by weight of component (A), which is a (meth)acrylic modified (hydrogenated) polybutadiene, and 0.0001-10% by weight of component (B), which is a compound represented by formula (IV).
    Type: Application
    Filed: September 6, 2013
    Publication date: January 2, 2014
    Applicant: NIPPON SODA CO., LTD.
    Inventors: Hiroki HASHIMOTO, Yukikazu NOBUHARA
  • Publication number: 20130313000
    Abstract: The invention relates to a polymer composition comprising a polyolefin (A) and an antioxidant.
    Type: Application
    Filed: October 5, 2011
    Publication date: November 28, 2013
    Applicant: BOREALIS AG
    Inventors: Susanne M. Nilsson, Thomas Hjertberg, Annika M. Smedberg
  • Publication number: 20130269976
    Abstract: The invention relates to cover (insulation or jacket) compositions for wires or cables having a base polymer and a bismuth compound. The composition contains no significant amount of lead and no added fire retardant.
    Type: Application
    Filed: August 8, 2012
    Publication date: October 17, 2013
    Applicant: General Cable Technologies Corporation
    Inventors: Sarah Gerretsen, Amalendu Sarkar
  • Publication number: 20130089967
    Abstract: The present invention is a temporary adhesive composition comprising: (A) non-aromatic saturated hydrocarbon group-containing organopolysiloxane; (B) an antioxidant; and (C) an organic solvent, wherein the component (A) corresponds to 100 parts by mass, the component (B) corresponds to 0.5 to 5 parts by mass, and the component (C) corresponds to 10 to 1000 parts by mass. There can be provided a temporary adhesive composition that has excellent thermal stability while maintaining solvent resistance and a method for manufacturing a thin wafer using this.
    Type: Application
    Filed: September 27, 2012
    Publication date: April 11, 2013
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: SHIN-ETSU CHEMICAL CO., LTD.
  • Patent number: 8404766
    Abstract: An object of the present invention is to satisfy both of the low heat build-up property and strength at break. The present invention provides a rubber composition for tread comprising 0.5 to 10 parts by mass of (B) an alkylphenol-sulfur chloride condensate indicated by the formula (B1): (wherein R1 to R3 are same or different, either is an alkyl group having 5 to 12 carbons; x and y are same or different, and either is an integer of 2 to 4; n is an integer of 0 to 10), 0.5 to 6 parts by mass of (C) sulfur, and 10 to 100 parts by mass of (D) silica, based on 100 parts by mass of the specific (A) rubber component comprising, and a tire having tread using thereof.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: March 26, 2013
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Tatsuya Miyazaki
  • Patent number: 8389612
    Abstract: A rubber composition for cap tread satisfying both of low heat build-up property and fracture strength and a tire having cap tread using the same are provided. A rubber composition for cap tread including 0.5 to 10 parts by mass of an alkylphenol-sulfur chloride condensate (B) indicated by the formula (B1): (wherein R1 to R3 are same or different, either is an alkyl group having 5 to 12 carbons; x and y are same or different, and either is an integer of 2 to 4; n is an integer of 0 to 10.), 0 to 0.45 parts by mass of sulfur (C), and 10 to 100 parts by mass of silica (D), based on 100 parts by mass of a specific rubber component (A).
    Type: Grant
    Filed: July 9, 2009
    Date of Patent: March 5, 2013
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventor: Tatsuya Miyazaki
  • Patent number: 8217105
    Abstract: The invention describes a composition comprising a) a polyethylene, b) a sulfur-containing phenolic antioxidant, c) a migrating antistatic agent, and d) an organic peroxide. The composition is useful for the preparation of a crosslinked polyethylene as cable insulation of medium and high voltage cables with improved water tree resistance.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: July 10, 2012
    Assignee: BASF SE
    Inventors: Heinz Herbst, Markus Kolb
  • Patent number: 8101679
    Abstract: The invention describes an improved method for the preparation of rubber compounds which comprises compounding the rubber and the components at 125-200° C. in the presence of an amount of 0.
    Type: Grant
    Filed: March 10, 2008
    Date of Patent: January 24, 2012
    Assignee: BASF SE
    Inventors: Gerrit Knobloch, Eva Peregi, Pierre Rota-Graziosi
  • Publication number: 20110308836
    Abstract: The invention relates to cover compositions for electric power cables having a polyolefin and a styrene copolymer. The styrene copolymer 1) has a styrene content of 55 percent (by weight base on the total styrene copolymer) or greater; 2) contains a random arrangement of styrene and at least one other block polymer; and/or 3) contains a triblock having the formula S-AS-S, wherein S is styrene and A is alkylene or a mixture of different alkylenes. The cover can be an insulation or a jacket.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 22, 2011
    Applicant: General Cable Technologies Corporation
    Inventors: Jianmin LIU, Vijay MHETAR, James FREESTONE
  • Patent number: 8053512
    Abstract: A backbone modified polymer comprising the reaction product of an elastomeric polymer and a sulfide modifier represented by Formula 1: AS—Y-Zm (Formula 1), and wherein Y is (C12-C100) aralkyl, (C12-C100) aryl, (C12-C100) alkyl, or (C12-C100) dialkylether (alkyl-O-alkyl), and wherein each may be optionally substituted with (C1-C4alkyl, (C1-C4alkoxy, (C7-C16aryl, (C7-C16 aralkyl, nitrile, amine, NO2, alkoxy, or thioalkyl; S is sulfur; A is hydrogen, —(S)p—R1 or -MR2R3R4; Z is —SH, —S-MR5R6R7, —S—(S)p—R8, —NR9R10, —NR11COR12, —O—CO—R13, —NCO, or —COOR14; M is silicon or tin; N is nitrogen; O is oxygen; m is the number one, two or three; p is the number one, two, three, four or five; R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13 and R14 are the same or different, and are each, independently, selected from hydrogen (H), (C1-C16) alkyl, (C6-C16) aryl, (C7-C16) aralkyl or (C3-C30) tri(hydrocarbyl)silyl, and wherein the hydrocarbyl groups are each independently selected from (C1-C16) alkyl, (C6-C16) aryl, or
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: November 8, 2011
    Assignee: Styron Europe GmbH
    Inventors: Sven K. H. Thiele, Joachim Kiesekamp
  • Publication number: 20110155416
    Abstract: Insulation compositions for electric power cables having a polyolefin base polymer and an additive comprising either low molecular weight wax or polyethylene glycol (PEG) and optionally further comprising one or more hindered amine light stabilizers, amine antioxidants and other antioxidant blends are disclosed. Also disclosed are insulation compositions comprising a C2 to C8 alpha olefin in combination with a polyethylene homopolymer together with, optionally, one or more hindered amine light stabilizer and a liquid cresol antioxidant.
    Type: Application
    Filed: March 7, 2011
    Publication date: June 30, 2011
    Applicant: General Cable Technologies Corporation
    Inventor: Mark Easter
  • Patent number: 7951861
    Abstract: A method of decreasing the roiling resistance of a tire formed from a sulfur-vulcanized elastomeric by combining at least one diene elastomer and at least one reinforcing filler, with an effective amount of a coupling agent consisting of a combination of: 10 to 90%, of a product (I) consisting of a blend of poly(alkylphenol) polysulfides of formula: in which: R is an alkyl radical containing 1 to 20 carbon atoms; n and n? are two integers, which may be identical or different, from 1 to 8; p is an integer from 0 to 50; and 10 to 90% of a product (II) consisting of bis(triethoxysilylpropyl)tetrasulfide, to form a mixture; thereafter working said mixture; and thereafter heating said mixture to vulcanize said mixture. 90% of bis(triethoxysilylpropyl)tetrasulfide.
    Type: Grant
    Filed: October 5, 2010
    Date of Patent: May 31, 2011
    Assignee: Arkema France
    Inventor: Thierry Aubert
  • Publication number: 20100036031
    Abstract: The invention describes a composition comprising a) a polyethylene, b) a sulfur-containing phenolic antioxidant, c) a migrating antistatic agent, and d) an organic peroxide. The composition is useful for the preparation of a crosslinked polyethylene as cable insulation of medium and high voltage cables with improved water tree resistance.
    Type: Application
    Filed: October 8, 2007
    Publication date: February 11, 2010
    Inventors: Heinz Herbst, Markus Kolb
  • Publication number: 20090264567
    Abstract: A composition is disclosed that includes at least one polyolefin, at least one organic peroxide, and an antioxidant mixture of a composition of at least one polyolefin, at least one organic peroxide, and an antioxidant mixture. The antioxidant mixture has at least one fast radical scavenger selected from the group consisting of low hindered phenols, low hindered thiophenols, low hindered thiobisphenols, aliphatic amines, aromatic amines, NOR HALS, hydroxylamines, and mixtures thereof, and at least one long term stabilizer selected from the group consisting of low hindered phenols, highly hindered phenols, thiosynergists, aliphatic amines, aromatic amines, HALS, hydroxylamines, and mixtures thereof. The preferred polyolefin is a homopolymer of ethylene or a copolymer of ethylene and the compositions are useful in insulating media for medium and high voltage wire and cable applications.
    Type: Application
    Filed: April 25, 2006
    Publication date: October 22, 2009
    Inventors: Anne-Marie Prins, Klaus Keck-Antoine, Jonathan Simon Hill, Joachim Bayer, Brian W. Johnson
  • Publication number: 20090227717
    Abstract: The present invention relates to a crosslinkable polymer composition, comprising (i) an unsaturated polyolefin having a total amount of carbon-carbon double bonds/1000 carbon atoms of more than 0.37, and (ii) at least one ether and/or ester group containing additive selected from the group consisting of polyethylene glycol, a glycerol ester compound, polypropylene glycol, an amido group containing fatty acid ester, ethoxylated and/or propoxylated pentaerythritol, an alpha-tocopherol ester, an ethoxylated and/or propoxylated fatty acid, and derivatives thereof.
    Type: Application
    Filed: June 1, 2006
    Publication date: September 10, 2009
    Applicant: Borealis Technology Oy
    Inventors: Annika Smedberg, Perry Nylander
  • Patent number: 7521497
    Abstract: A saponified ethylene-vinyl acetate resin, containing from 0.1 to 3000 ppm of a compound having a molecular weight of at most 1000 and having at least one conjugated double bond, an alkoxy group content of from 0.0005 to 1 mol %, an ethylene content of from 5 to 60 mol %, and a degree of saponification of at least 85 mol % has good melt extrusion stability, drawdown resistance, interlayer adhesion and gas barrier properties, and products made therefrom have good surface smoothness. The saponified ethylene-vinyl acetate resin may be produced by polymerizing a mixture of ethylene and vinyl acetate in the presence of a polymerization initiator having an alkoxy group, thereby producing an ethylene-vinyl acetate copolymer, adding a compound having a molecular weight of at most 1000 and at least one conjugated double bond to the ethylene-vinyl acetate copolymer, then saponifying the ethylene-vinyl acetate copolymer, thereby forming a saponified ethylene-vinyl acetate copolymer.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: April 21, 2009
    Assignee: Kuraray Co., Ltd.
    Inventors: Kazuyori Yoshimi, Osamu Kazeto, Masako Katayama
  • Publication number: 20080311065
    Abstract: The present invention relates to macromonomer compounds possessing antioxidant properties, antioxidant polymers comprising the antioxidant macromonomers as a recurring unit, and methods of inhibiting oxidation in a substance comprising contacting the substance with the antioxidant polymers. In one embodiment, substantially all of the recurring macromonomeric units of the antioxidant polymers comprise an antioxidant moiety. In another embodiment, all of the recurring macromonomer units of the antioxidant polymers comprise an antioxidant moiety. The method of the present invention, yields antioxidant polymers with substantially all of the recurring units comprising an antioxidant moiety. These antioxidant polymers have greater bulk antioxidative properties than previously known.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 18, 2008
    Inventor: Ashok L. Cholli
  • Patent number: 7452933
    Abstract: The present invention relates to a cross-linked polyethylene composition having outstanding sweat-out inhibition and insulation properties. The composition of the invention characteristically comprises (A) 100 weight part of polyethylene; (B) 0.2-0.6 weight part of a mixture of a liquid antioxidant and a hindered phenol or thio ester antioxidant; (C) 0.2-0.9 weight part of polyethylene glycol having a molecular weight of 5,000-70,000; and (D) 1-4 weight part of a cross-linking agent.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: November 18, 2008
    Assignee: LG Chem, Ltd.
    Inventors: Youngil Song, Ingyu Park, Yoonsun Nam, Deukju Kim
  • Patent number: 7109261
    Abstract: Halogen-containing polymer compositions comprising a latent mercaptan-containing heat stabilizer composition substantially free from the offensive odor typically associated with mercaptans are protected during processing by the degradation products of the latent (i.e., blocked) mercaptan which include a free mercaptan. Other products of the degradation are believed to include carbocations of the blocking moiety which are stabilized by a molecular structure in which the electron deficiency is shared by several groups. The latent mercaptan may be the sole heat stabilizer additive but the free mercaptan released during processing may also synergize the activity of metal-based heat stabilizers such as metal salts and organometallic stabilizers such as organotin carboxylates and mercaptides in the polymer composition. The odor of primary mercaptan-containing heat stabilizers in halogenated polymer compositions is masked by a small amount of a latent mercaptan.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: September 19, 2006
    Assignee: Rohm and Haas Company
    Inventors: Tod C. Duvall, Paul B. Adams, Gene K. Norris
  • Patent number: 7105109
    Abstract: Compositions useful as heat stabilizers comprising at least one latent mercaptan-containing compound and at least one zinc compound are provided. Halogen-containing polymer compositions comprising such heat stabilizers are also provided.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: September 12, 2006
    Assignee: Rohm and Haas Company
    Inventors: Paul Brian Adams, Gene K. Norris, Tod C. Duvall
  • Patent number: 7056967
    Abstract: The invention relates to a polyethylene composition for use as insulation for wire and cable that has improved scorch resistance comprising (a) a polyethylene (b) a scorch inhibitor having a melting point below 50° C. at atmospheric pressure, and (c) an organic peroxide.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: June 6, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Wolfgang Voigt, John Kenny
  • Patent number: 6939906
    Abstract: Disclosed is a block copolymer composition comprising a block copolymer (I) comprising at least two polymer blocks (each polymer block (S) comprising vinyl aromatic hydrocarbon monomer units) and at least one polymer block (B) comprising isoprene monomer units and 1,3-butadiene monomer units, and a polystyrene resin (II), wherein, in the block copolymer (I), the amount of the vinyl aromatic hydrocarbon monomer units, the total amount of the isoprene monomer units and the 1,3-butadiene monomer units, and the isoprene monomer unit/1,3-butadiene monomer unit weight ratio are within specific range, wherein the block copolymer (I) has a vinyl aromatic hydrocarbon block ratio (BL) within a specific range, and wherein the block copolymer (I) and the polystyrene resin (II) satisfy a relationship represented by the following formula (1): 15+0.25BL?Wa?35+0.
    Type: Grant
    Filed: August 31, 2001
    Date of Patent: September 6, 2005
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Susumu Hoshi, Yukio Yamaura, Junko Kakegawa
  • Patent number: 6869995
    Abstract: A composition comprising: (i) polyethylene, and, based on 100 parts by weight of component (i), (ii) about 0.3 to about 0.6 part by weight of 4,4?-thiobis(2-methyl-6-t-butylphenol); 4,4?-thiobis(2-t-butyl-5-methylphenol); 2,2?-thiobis(6-t-butyl-4-methylphenol); or a mixture of said compounds, and (iii) about 0.4 to about 1 part by weight of a polyethylene glycol having a molecular weight in the range of about 1000 to about 100,000.
    Type: Grant
    Filed: January 28, 2002
    Date of Patent: March 22, 2005
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventors: Paul J. Caronia, Kawai P. Pang, Michael J. Keogh
  • Patent number: 6844383
    Abstract: Disclosed is a block copolymer comprising at least two S polymer blocks comprising vinyl aromatic hydrocarbon monomer units, and one B polymer block or two or more B polymer blocks which contains or collectively contain isoprene monomer units and 1,3-butadiene monomer units, wherein the amount of the vinyl aromatic hydrocarbon monomer units and the total amount of the isoprene monomer units and the 1,3-butadiene monomer units are, respectively, from 60 to 95% by weight and from 40 to 5% by weight, each based on the weight of the copolymer, wherein the isoprene monomer unit/1,3-butadiene monomer unit weight ratio is from 45/55 to 97/3, and wherein the vinyl aromatic hydrocarbon monomer unit moiety of the copolymer has a short segment ratio of from 0 to 30% by weight, which is defined as the weight percentage, based on the total weight of vinyl aromatic hydrocarbon monomer units in the copolymer, of the vinyl aromatic hydrocarbon monomer units in at least one short segment consisting of 1 to 3 vinyl aromatic hy
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: January 18, 2005
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventors: Susumu Hoshi, Yukio Yamaura, Junko Kakegawa, Tsutomu Sugimoto
  • Patent number: 6815076
    Abstract: A pressure-sensitive adhesive tape having a cured layer of a silicone pressure-sensitive adhesive composition containing a phenolic antioxidant is attached to an adherend of metal, typically copper for bonding or masking purposes. Even after exposure to elevated temperatures of 150-250° C., the tape can be smoothly peeled from the adherend without leaving any adhesive residue.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: November 9, 2004
    Assignee: Shin-Etsu Chemical Co. Ltd.
    Inventor: Shunji Aoki
  • Patent number: 6743840
    Abstract: Halogen-containing polymer compositions comprising a latent mercaptan-containing heat stabilizer composition substantially free from the offensive odor typically associated with mercaptans are protected during processing by the degradation products of the latent (i.e., blocked) mercaptan which include a free mercaptan. Other products of the degradation are believed to include carbocations of the blocking moiety which are stabilized by a molecular structure in which the electron deficiency is shared by several groups. The latent mercaptan may be the sole heat stabilizer additive but the free mercaptan released during processing may also synergize the activity of metal-based heat stabilizers such as metal salts and organometallic stabilizers such as organotin carboxylates and mercaptides in the polymer composition. The odor of primary mercaptan-containing heat stabilizers in halogenated polymer compositions is masked by a small amount of a latent mercaptan.
    Type: Grant
    Filed: January 16, 1998
    Date of Patent: June 1, 2004
    Assignee: Rohm and Haas Company
    Inventors: Tod C. Duvall, Paul B. Adams, Gene K. Norris
  • Patent number: 6646036
    Abstract: A heat stabilized block copolymer composition which comprises a block copolymer comprising a polymer block mainly composed of a monoalkenyl aromatic compound and a polymer block mainly composed of a conjugated diene compound, the content of the monoalkenyl aromatic compound being 5-95% by weight based on the total weight of the block copolymer, and phenolic stabilizers. By adding two or more specific phenolic stabilizers to a block copolymer of a monoalkenyl aromatic compound and a conjugated diene compound, there can be obtained a block copolymer composition which exhibits excellent heat stability even under being heated at high temperatures, is high in the effect of being inhibited from formation of gel-like materials and is excellent in color tone.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: November 11, 2003
    Assignee: Japan Elastomer Co., Ltd.
    Inventors: Masahiro Fujiwara, Keiichi Toda
  • Patent number: 6596796
    Abstract: There are described compositions comprising a) an emulsion crude rubber, synthetic latex or natural rubber latex subject to oxidative, thermal, dynamic and/or light-induced degradation, and b) as stabilizer at least one compound of formula I wherein R1 is C8-C20alkyl; and optionally c) as further stabilizer at least one compound of formula II wherein R2 is C8-C12alkyl, R3 is hydrogen, C1-C12alkyl, cyclohexyl, 1-methylcyclohexyl, benzyl, &agr;-methylbenzyl, &agr;,&agr;-dimethylbenzyl or —CH2—S—R2, R4 is C1-C12alkyl, benzyl, &agr;-methylbenzyl, 60 ,&agr;-dimethylbenzyl or —CH2—S—R2, and R5 is hydrogen or methyl.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: July 22, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hans-Rudolf Meier, Gerrit Knobloch, Paul Dubs, Samuel Evans
  • Patent number: 6566431
    Abstract: The present invention provides a damping composite material, exhibiting more stable and functional damping effects than the conventional one based on the viscous or frictional mechanism to convert mechanical vibrational energy into thermal energy, and also provide a method for producing the same. The damping material of the present invention comprises at least a material showing piezoelectric, dielectric and electroconductive effects, and an organic polymer matrix material, wherein the material showing piezoelectric, dielectric and electroconductive effects is a compound containing a phenolic group, and the method of the present invention for producing the damping material comprises two steps, one uniformly mixing the material showing piezoelectric, dielectric and electroconductive effects with the organic polymer matrix material at normal temperature or higher, and the other forming the mixture by pressing or drawing at high temperature.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: May 20, 2003
    Inventors: Cheng Zhang, Tadashi Miura, Masao Sumita
  • Patent number: 6228916
    Abstract: A conjugated diene polymer composition comprising: (a) 100 parts by weight of a non-coupling conjugated diene polymer consisting of at least one conjugated diene or a non-coupling random copolymer consisting of a conjugated diene and at least one monovinyl aromatic compound, (b) 0.03 to 0.2 parts by weight of a sulfur-containing phenol type antioxidant represented by the following general formula (I): wherein R1 and R3 are —CH2—S—R5 in which each R5 represents independently an alkyl group having 2 to 18 carbon atoms; R2 represents hydrogen or a methyl group; and R4 represents an alkyl group having 1 to 8 carbon atoms, and (c) 0.03 to 0.2 parts by weight of a phenol type antioxidant represented by the following general formula (II): wherein R6 represents a tert-butyl group and R7 represents an alkyl group having 2 to 22 carbon atoms.
    Type: Grant
    Filed: September 22, 1999
    Date of Patent: May 8, 2001
    Assignee: Asahi Kasei Kogyo Kabushiki Kaisha
    Inventors: Masao Sato, Tomohiro Iihara, Masahiro Sasagawa
  • Patent number: 5698619
    Abstract: The present invention relates to the use in a silica-filled rubber composition of an aminosilane compound of the formula ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently selected from the group consisting of alkoxy radicals having from 1 to 8 carbon atoms, alkyl radicals having 1 to 8 carbon atoms and aryl radicals having 6 carbon atoms, with the proviso that at least one of R.sup.1, R.sup.2 and R.sup.3 is an alkoxy radical; R.sup.4 is selected from the group consisting of alkylene groups having from 1 to 18 carbon atoms and arylene and alkyl substituted arylene groups having from 6 to 10 carbon atoms; R.sup.5 is selected from the group consisting of hydrogen and alkyl groups having from 1 to 15 carbon atoms.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: December 16, 1997
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Martin Paul Cohen, Cheryl Ann Losey, Dane Kenton Parker
  • Patent number: 5453457
    Abstract: Esters and polyesters which contain disulfide linkages were found to be effective stabilizers of polycarbonate resin. Accordingly, a polycarbonate composition containing disulfide esters, alone or as a coadditive with a polyether is rendered more resistant to the deterioration resulting upon exposure to gamma radiation.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: September 26, 1995
    Assignee: Bayer Corporation
    Inventors: Aaron D. Meltzer, Harald Pielartzik, Rick Archey
  • Patent number: 5166241
    Abstract: Thiol compounds are combined with an organometallic halide or metallic halide to provide thermal stability to vinyl halide polymers.
    Type: Grant
    Filed: November 22, 1989
    Date of Patent: November 24, 1992
    Inventor: Simon Kornbaum
  • Patent number: 5149733
    Abstract: Linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon are stabilized against degradation caused by exposure to ultraviolet light by the inclusion therein of a thiobisphenol and certain channel-type carbon blacks.
    Type: Grant
    Filed: July 20, 1989
    Date of Patent: September 22, 1992
    Assignee: Shell Oil Company
    Inventor: George B. Klingensmith
  • Patent number: 5059661
    Abstract: Compounds of formula I ##STR1## wherein n is 0 to 3, R.sub.1 and R.sub.2 are C.sub.1 -C.sub.12 alkyl, C.sub.5 -C.sub.8 cycloalkyl or --CH.sub.2 SR.sub.3, R.sub.3 is C.sub.1 -C.sub.18 alkyl, phenyl or benzyl, and R.sub.4 is hydrogen or CH.sub.3, are admirably suitable as chain-terminators in the anionic solution polymerisation of 1,3-dienes.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: October 22, 1991
    Assignee: Ciba-Geigy Corporation
    Inventor: Gerrit Knobloch
  • Patent number: 5008459
    Abstract: Novel compositions are described which comprise an elastomer or a lubricant and at least one compound of the formulae I or II ##STR1## The symbols R.sub.1, R.sub.2, R.sub.3, Z.sub.1 and Z.sub.2 are as defined in claim 1.The compounds of the formula II and some of the compounds of the formula I are novel, and they are used especially as antioxidants.
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: April 16, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans R. Meier, Samuel Evans, Paul Dubs
  • Patent number: 4857572
    Abstract: Novel compositions are described which contain an elastomer or a tackifying resin and at least one compound of formula I ##STR1## The symbols R.sub.1 is alkyl or cycloalkyl, R.sub.2 is alkyl, hydroxyalkyl, phenyl or benzyl, and R.sub.3 is hydrogen or methyl with the proviso that, when R.sub.1 is other than methyl, R.sub.3 is methyl.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: August 15, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans-Rudolf Meier, Gerrit Knobloch
  • Patent number: 4847313
    Abstract: This invention is concerned with the prevention of gel formation in polymers. More specifically, this invention is directed to a unique combination of materials that greatly lessens the formation of gel in elastomers during processing and storage. The combination comprises a hindered phenolic antioxidant and an alkylated phenol/primary mercaptan/formaldehyde reaction product.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: July 11, 1989
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Joel Muse, Donald C. Grimm, Jerry J. Dillon, Kirkwood S. Cottman, Calvin A. Bennett
  • Patent number: 4820756
    Abstract: Novel compounds of the formula I ##STR1## in which R.sub.1, R.sub.2, R.sub.8, R.sub.9 and R.sub.10 are independently alkyl, alkenyl, cycloalkyl, phenyl, naphthyl, alkylphenyl or aralkyl and R.sub.1 and R.sub.2 may also be independently hydrogen or alkoxycarbonylmethyl, are described.The novel phenols are suitable as stabilizers in organic polymers and lubricants.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: April 11, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Rita Pitteloud, Paul Dubs
  • Patent number: 4772405
    Abstract: The invention relates to compositions comprising a lubricant or a hydraulic fluid and at least one compound of formula I ##STR1## wherein X is --S--, --O--, --CO--O--, --CH.sub.2 -- or --NR.sup.5 --, where R.sup.5 is hydrogen or C.sub.1 --C.sub.8 alkyl, n is 0, 1, 2 or 3, R.sup.1 and R.sup.2 are each independently of the other hydrogen or C.sub.1 -C.sub.12 alkyl, R.sup.3 is hydrogen or methyl, and R.sup.4 is C.sub.1 -C.sub.22 alkyl, C.sub.5 -C.sub.8 cycloalkyl, aryl or aryl which is substituted by one or two C.sub.1 -C.sub.8 alkyl radicals, or is C.sub.7 -C.sub.12 aralkyl or the group ##STR2## wherein R.sup.1, R.sup.2, R.sup.3 and n have the given meanings. The sulfur-containing phenol derivatives of formula I are particularly suitable antiwear, extreme pressure and antioxidant additives for mineral and synthetic lubricants and for hydraulic fluids.The invention further relates to novel phenol derivatives of formula I which are suitable additives for lubricants, hydraulics and elastomers.
    Type: Grant
    Filed: August 14, 1986
    Date of Patent: September 20, 1988
    Assignee: Ciba-Geigy Corporation
    Inventor: Hermann O. Wirth