Two Or More Separate Aryl-oh Groups Patents (Class 524/333)
-
Patent number: 10607748Abstract: The present invention relates to an electrical insulation system having a low environmental impact comprising two fundamental elements: a) a gaseous medium formed by one or more highly fluorinated fluoroketones having between 4 and 12 carbons, at least another additional dielectric gas, other than the fluoroketones, with a vapor pressure greater than 500 mbar and less than 15000 mbar at 0° C., such as fluoronitrile (CF3)2CF—CN, for example, and one or more vector gases; and b) a molecular sieve capable of discriminating water molecules from molecules of other gases present in the gaseous medium of the system. The invention also relates to the use of the insulation system and to the medium- or high-voltage electrical switchgear comprising a complete enclosure in which there are arranged live electrical components and an electrical insulation system according to the invention.Type: GrantFiled: January 20, 2015Date of Patent: March 31, 2020Assignee: Ormazabal Corporate Technology, A.I.E.Inventors: Jesus Izcara Zurro, Javier Larrieta Zubia
-
Patent number: 9637570Abstract: Provided herein is a method for operating a slurry polymerization reaction system to reduce, inhibit, and/or prevent fouling in the polymer recovery and separation apparatus, including one or more portions of a high pressure flash tank. The method generally comprises polymerizing a monomer feed in a slurry polymerization reactor in the presence of catalyst and diluent to produce a polymerization effluent; continuously discharging at least a portion of said polymerization effluent from the reactor through a discharge valve; combining a catalyst poison stream with the polymerization effluent downstream of said discharge valve, wherein the catalyst poison stream comprises a catalyst poison that is a gas at standard conditions; and flashing the combination of polymerization effluent and catalyst poison stream in a first flash tank.Type: GrantFiled: June 11, 2009Date of Patent: May 2, 2017Assignee: ExxonMobil Chemical Patents Inc.Inventor: Thomas W. Towles
-
Publication number: 20140227447Abstract: A block copolymer formulation is provided including a block copolymer blend including a first poly(acrylate)-b-poly(silyl acrylate) block copolymer; and, a second poly(acrylate)-b-poly(silyl acrylate) block copolymer. Also provided are substrates treated with the block copolymer formulation.Type: ApplicationFiled: February 8, 2013Publication date: August 14, 2014Applicant: ROHM AND HAAS ELECTRONIC MATERIALS LLCInventors: Phillip Hustad, Peter Trefonas, Xinyu Gu, Shih-Wei Chang, Valeriy Ginzburg, Erin Vogel, Daniel Murray
-
Publication number: 20140227445Abstract: A copolymer composition is provided including a block copolymer having a poly(styrene) block and a poly(silyl acrylate) block; wherein the block copolymer exhibits a number average molecular weight, MN, of 1 to 1,000 kg/mol; and, wherein the block copolymer exhibits a polydispersity, PD, of 1 to 2. Also provided are substrates treated with the copolymer composition.Type: ApplicationFiled: February 8, 2013Publication date: August 14, 2014Applicant: ROHM AND HAAS ELECTRONIC MATERIALS LLCInventors: Peter Trefonas, Phillip Hustad, Xinyu Gu, Erin Vogel, Valeriy Ginzburg, Shih-Wei Chang, Daniel Murray
-
Publication number: 20140182882Abstract: Thiobis phenolic antioxidants are efficiently dry or melt blended with a tree-resistant, crosslinkable polyethylene by first forming a blend, preferably a dry blend, of the antioxidant with a polyalkylene glycol (PAG), and then mixing the blend with the polyethylene. The incorporation of thiobis phenolic antioxidant and PAG blend into polyethylene provides the PE with high oxidative induction time (OIT) which is a measure of the oxidative stability of the PE.Type: ApplicationFiled: May 15, 2012Publication date: July 3, 2014Inventors: Antoni Adamczyk, Daniel Emley, Neil W. Drunchus, Jeffrey M. Cogen, Susan Song
-
Publication number: 20140134436Abstract: Thiobis phenolic antioxidants are efficiently dry or melt blended with a tree-resistant, crosslinkable polyethylene by first forming a blend, preferably a dry blend, of the antioxidant with a polyalkylene glycol (PAG), and then mixing the blend with the polyethylene. The incorporation of thiobis phenolic antioxidant and PAG blend into polyethylene provides the PE with high oxidative induction time (OIT) which is a measure of the oxidative stability of the PE.Type: ApplicationFiled: January 21, 2014Publication date: May 15, 2014Applicant: Union Carbide Chemicals & Plastics Technology LLCInventors: Antoni Adamczyk, Daniel Emley, Neil W. Dunchus, Jeffrey M. Cogen, Susan Song
-
Publication number: 20140109975Abstract: The present invention relates to a polyolefin composition comprising a polyolefin base resin and an antioxidant, characterized in that said polyolefin composition has a lifetime of at least 200 h in a test measuring the resistance against ClO2-containing water at 90° C. and at a concentration of ClO2 of 4 ppm wherein the equipment used is according to ASTM F2263-03. The present invention further relates to a pipe comprising the polyolefin composition according to the invention, to the use of the polyolefin composition for the production of a pipe, and to the use of a particularly selected antioxidant for increasing the resistance of a polyolefin composition against degradation caused by contact with ClO2-containing water.Type: ApplicationFiled: December 31, 2013Publication date: April 24, 2014Applicant: BOREALIS TECHNOLOGY OYInventors: Per-Ola HAGSTRAND, Perry NYLANDER, Mats BÄCKMAN
-
Patent number: 8691904Abstract: Thiobis phenolic antioxidants are efficiently dry or melt blended with a tree-resistant, crosslinkable polyethylene by first forming a blend, preferably a dry blend, of the antioxidant with a polyalkylene glycol (PAG), and then mixing the blend with the polyethylene. The incorporation of thiobis phenolic antioxidant and PAG blend into polyethylene provides the PE with high oxidative induction time (OIT) which is a measure of the oxidative stability of the PE.Type: GrantFiled: June 8, 2011Date of Patent: April 8, 2014Assignee: Union Carbide Chemicals & Plastics Technology LLCInventors: Antoni Adamczyk, Daniel Emley, Neil W. Dunchus, Jeffrey M. Cogen, Susan Song
-
Publication number: 20140061155Abstract: A copolymer composition and a method of processing a substrate to form line space features thereon are provided.Type: ApplicationFiled: August 31, 2012Publication date: March 6, 2014Applicants: DOW GLOBAL TECHNOLOGIES LLC., ROHM AND HAAS ELECTRONIC MATERIALS LLC.Inventors: Xinyu Gu, Shih-Wei Chang, Rahul Sharma, Valeriy Ginzburg, Phillip Hustad, Jeffrey Weinhold, Peter Trefonas
-
Publication number: 20130295306Abstract: Disclosed are a copolymeric polyester resin composition having outstanding colour stability (transparency) and a production method therefor. The copolymeric polyester resin composition comprises: between 95 and 99.99 percent by weight of a copolymeric polyester resin having a structure which is obtained by the copolymerisation of a dicarboxylic acid component and a diol component that comprises isosorbide, and in which there is repetition of a dicarboxylic acid moiety derived from the dicarboxylic acid component and a diol moiety derived from the diol component; and between 0.01 and 5 percent by weight of an antioxidant selected from the group consisting of hindered phenol-based antioxidants, phosphite-based antioxidants, thioether-based antioxidants and mixtures thereof.Type: ApplicationFiled: January 30, 2012Publication date: November 7, 2013Applicant: SK CHEMICALS CO., LTD.Inventor: JVC KENWOOD Corporation
-
Patent number: 8501850Abstract: The invention provides compositions and methods for inducing and enhancing order and nanostructures in block copolymers and surfactants by certain nonpolymeric additives, such as nanoparticles having an inorganic core and organic functional groups capable of hydrogen bonding. Various compositions having lattice order and nanostructures have been made from a variety of copolymers or surfactants that are mixed with nonpolymeric additives. Particularly, a variety of nanoparticles with an inorganic core and organic functional groups have been discovered to be effective in introducing or enhancing the degree of orders and nanostructures in diverse block copolymers and surfactants.Type: GrantFiled: October 14, 2010Date of Patent: August 6, 2013Assignee: University of MassachusettsInventors: James J. Watkins, Vikram K. Daga, Ying Lin
-
Patent number: 8404766Abstract: 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: GrantFiled: August 27, 2008Date of Patent: March 26, 2013Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Tatsuya Miyazaki
-
Publication number: 20130068498Abstract: Thiobis phenolic antioxidants are efficiently dry or melt blended with a tree-resistant, crosslinkable polyethylene by first forming a blend, preferably a dry blend, of the antioxidant with a polyalkylene glycol (PAG), and then mixing the blend with the polyethylene. The incorporation of thiobis phenolic antioxidant and PAG blend into polyethylene provides the PE with high oxidative induction time (OIT) which is a measure of the oxidative stability of the PE.Type: ApplicationFiled: June 8, 2011Publication date: March 21, 2013Inventors: Antoni Adamczyk, Daniel Emley, Neil W. Dunchus, Jeffrey M. Cogen, Susan Song
-
Patent number: 8389612Abstract: 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: GrantFiled: July 9, 2009Date of Patent: March 5, 2013Assignee: Sumitomo Rubber Industries, Ltd.Inventor: Tatsuya Miyazaki
-
Publication number: 20120305284Abstract: A crosslinkable and crosslinked polymer composition with improved DC electrical properties and a cable surrounded by at least one layer comprising the polymer composition are provided.Type: ApplicationFiled: November 3, 2010Publication date: December 6, 2012Applicant: BOREALIS AGInventors: Ulf Nilsson, Annika Smedberg, Alfred Campus
-
Publication number: 20120123007Abstract: There is provided herein a styrenic polymer composition comprising a styrenic polymer and a flame retardant effective amount of a mixture comprising (a) at least one brominated flame retardant; and, (b) at least one solid phosphate ester that has a melting temperature of at least 80 degrees Celsius.Type: ApplicationFiled: February 18, 2010Publication date: May 17, 2012Inventors: Smadar Hini, Michael Peled, Gideon Shikolsky, Grigory I. Titelman, Yoav-Bar Yaakov, Joseph Zilberman, Sergei V. Leychik
-
Publication number: 20120041108Abstract: A stabilized, dynamically vulcanized thermoplastic elastomer composition comprising dispersed dynamically vulcanized particles of at least one first elastomer or rubber comprising halogenated isobutylene-containing elastomer and dispersed particles of at least one second elastomer or rubber comprising at least one functional group capable of reacting with and grafting to a polyamide, the particles of the at least one first and at least one second elastomers dispersed in a continuous thermoplastic polyamide or nylon resin matrix comprising at least one nylon homopolymer, nylon copolymer or mixture thereof, the composition or the at least one first elastomer further comprising at least one stabilizer against degradation induced by exposure to actinic, particularly ultraviolet, radiation.Type: ApplicationFiled: December 17, 2008Publication date: February 16, 2012Applicant: The Yokohama Rubber Co., Ltd.Inventors: Edward John Blok, Bruce Alan Harrington, Yuichi Hara, Shusaku Tomoi
-
Publication number: 20120013698Abstract: Disclosed herein is a thermal transfer sheet including: a dye layer which is provided on one side of a substrate and which contains an indoaniline dye; and a transferred image coating layer provided on that side of the substrate on which the dye layer is formed, the transferred image coating layer being operable to coat an image thermally transferred onto a transferred image receiving sheet, wherein the transferred image coating layer contains a compound having a predetermined structure and a binder resin, and the content of the compound having the predetermined structure is 0.5 to 8 parts by mass based on 100 parts by mass of the binder resin.Type: ApplicationFiled: September 23, 2011Publication date: January 19, 2012Inventor: Satoru SHINOHARA
-
Patent number: 7794706Abstract: The present invention provides wound dressings, optionally surgically implantable, containing biodegradable, polymers and hydrogels having allogenic or autologous precursor cells, such as stem cells and progenitor cells dispersed within. Alternatively, the wound dressings can have conditioned medium obtained from the precursor cells dispersed within. The wound dressings promote tissue restoration processes at a site of application or implantation. Additional bioactive agents can also be dispersed within the polymer/hydrogel matrix, which can be formulated to biodegrade at a controlled rate by adjusting the composition. Methods are also provided for using such biodegradable wound dressings as a delivery device or carrier for the precursor cells, conditioned medium and bioactive agents, or as coatings on implantable medical devices, to promote tissue restoration at a lesion site.Type: GrantFiled: April 26, 2007Date of Patent: September 14, 2010Assignee: Medivas, LLCInventors: Kenneth W. Carpenter, William G. Turnell, Kristin M. DeFife, Kathryn A. Grako, Ramaz Katsarava
-
Publication number: 20100036016Abstract: The instant invention relates to a stabilized composition of methylmethacrylate-butadiene-styrene graft copolymers with selected sterically hindered phenolic antioxidants and thioethers. Further subjects of the invention are a process for the stabilization of methylmethacrylate-butadiene-styrene graft copolymers and the use of selected sterically hindered phenolic antioxidants together with a thioether for the thermal stabilization of said graft copolymer.Type: ApplicationFiled: February 2, 2009Publication date: February 11, 2010Inventors: Alex Wegmann, Pascal Xanthopoulos
-
Publication number: 20080311065Abstract: 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: ApplicationFiled: May 28, 2008Publication date: December 18, 2008Inventor: Ashok L. Cholli
-
Patent number: 7094843Abstract: Epoxy systems having improved shelf life are disclosed. The epoxy systems are suitable for use in a number of applications, including as an adhesive or as a sealant (e.g., as a component in a melt-sealing tape). Methods of making and using the epoxy systems are also disclosed.Type: GrantFiled: August 19, 2002Date of Patent: August 22, 2006Assignee: 3M Innovative Properties CompanyInventor: Scott R. Meyer
-
Patent number: 6995230Abstract: The invention relates to stabilizers containing at least two phenolic groups bonded to one another via a connecting radical (II) which is a polyol with a number-average molecular weight of from 75×F g/mol to 250×F g/mol, preferably from 100×F g/mol to 200×F g/mol, in particular from 100×F g/mol to 150×F g/mol, where the term F is the number of phenolic groups in the molecule.Type: GrantFiled: July 4, 2001Date of Patent: February 7, 2006Assignee: BASF AktiengesellschaftInventors: Hauke Malz, Thomas Flug, Peter Böhme, Markus Kamieth
-
Patent number: 6956074Abstract: There is a provided a polyurethane composition, which exhibits an excellent property of preventing discoloring or coloring not only by oxidized nitrogen gases but also by heat, characterized in that (A) a hindered phenol antioxidant, and (B) an amide represented by the following general formula (I): R1—CONH2??(I) wherein R1 represents an alkyl group having 12 to 21 carbon atoms is compounded in the polyurethane.Type: GrantFiled: August 19, 1999Date of Patent: October 18, 2005Assignee: Sumitomo Chemical Company, Ltd.Inventors: Kenji Kimura, Kanako Fukuda, Mutsuko Higo, Kunihito Miyake
-
Patent number: 6846866Abstract: The invention provides polyurethane containing a) a first additive comprising at least one mono-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; b) a second additive selected from the group consisting of i) condensation polymers of p-cresol and divinyl benzene and ii) compounds comprising at least one unsymmetrically di-hindered hydroxyphenyl group and having a molecular weight of at least about 300 Daltons; and c) an inorganic chlorine-resist additive. The polyurethane of the invention exhibits improved resistance to degradation by chlorine and by atmospheric fumes.Type: GrantFiled: June 3, 2002Date of Patent: January 25, 2005Assignee: Invista North America S.a.r.L.Inventors: Nathan E. Houser, Gordon W. Selling
-
Patent number: 6815076Abstract: 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: GrantFiled: September 25, 2002Date of Patent: November 9, 2004Assignee: Shin-Etsu Chemical Co. Ltd.Inventor: Shunji Aoki
-
Patent number: 6610763Abstract: A process for preparing a container for handling a household waste material which involves molding a household waste container from a plastic batch material containing 0.1 to 10% by weight of at least one phenol biocide selected from the group consisting of 5,5′-dichloro-2,2′-dihydroxydiphenyl methane, 3,5,3′,5′-tetrachloro-4,4′-dihydroxydiphenyl methane, 3,5,6,3′,5′,6′-hexachloro-2,2′-dihydroxydiphenyl methane, 5,5′-dichloro-2,2′-dihydroxydiphenyl sulfide, 2,4,5,2′,4′,5′-hexachloro-dihydroxydiphenyl sulfide, 3,5,3′,5′-tetrachloro-2,2′-dihydroxydiphenyl sulfide, and 2,4,4′-trichloro-2′-hydroxydiphenyl ether to form the container with an inner and an outer co-extruded layer wherein the phenol is applied on a co-extruded layer forming the surface of the inner co-extruded layer.Type: GrantFiled: August 23, 1999Date of Patent: August 26, 2003Assignee: Gebr. Otto GmbH & Co. KGInventor: Ulrich Beese
-
Patent number: 6528562Abstract: A fluoropolyether rubber composition comprising (A) a linear fluoropolyether compound containing at least two alkenyl groups and having a perfluoroalkyl ether structure in its backbone, (B) an organosilicon compound having at least two silicon atom-bound hydrogen atoms which all form H—Si(CaH2a)Si structures wherein “a” is 1, 2 or 3, (C) a hydrosilylation catalyst, and (D) an antidegradant, typically an aromatic secondary amine compound is curable into products having heat resistance, chemical resistance, solvent resistance, parting property, water repellency, oil repellency, and weather resistance as well as resistance to acid, alkali and oxidative degradation.Type: GrantFiled: July 10, 2001Date of Patent: March 4, 2003Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takashi Matsuda, Shinichi Sato, Noriyuki Koike
-
Patent number: 6391951Abstract: 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: GrantFiled: July 13, 2000Date of Patent: May 21, 2002Assignee: Sasol Technology (Proprietary) LimitedInventors: Dawid Johannes Joubert, Antonie Hermanus Potgieter, Ignatius Hendrik Potgieter, Ioan Tincul
-
Patent number: 6228917Abstract: A composition comprising: (a) polyethylene; (b) as a scorch inhibitor, 4,4′-thiobis(2-methyl-6-t-butylphenol); 2,2′ thiobis(6-t-butyl-4-methylphenol); or mixtures thereof; (c) optionally, a cure booster; and (d) an organic peroxide.Type: GrantFiled: June 16, 1998Date of Patent: May 8, 2001Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Michael John Keogh
-
Patent number: 6191246Abstract: 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: GrantFiled: January 12, 1998Date of Patent: February 20, 2001Assignee: Sasol Technology (Proprietary) LimitedInventors: Dawid Johannes Joubert, Ignatius Hendrik Potgieter, Ioan Tincul, Peter Loggenberg
-
Patent number: 6180231Abstract: A composition comprising: (a) polyethylene; (b) as a first scorch inhibitor, a substituted hydroquinone or 4,4′-thiobis(2-t-butyl-5-methyl phenol); (c) as a second scorch inhibitor, distearyl disulfide; and (d) an organic peroxide.Type: GrantFiled: March 31, 1999Date of Patent: January 30, 2001Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Michael John Keogh
-
Patent number: 6060545Abstract: Organic materials having excellent stability against oxidative, thermal or light-induced degradation comprise as stabilisers (i) at least one compound of formula I ##STR1## wherein the general symbols are as defined in claim 1, and (ii) calcium lactate and/or calcium stearoyl-2-lactylate.Type: GrantFiled: September 23, 1998Date of Patent: May 9, 2000Assignee: Ciba Specialty Chemicals CorporationInventor: Bernard Gilg
-
Patent number: 5948847Abstract: An undercoating composition layer to intervene between the surface of a substrate, e.g., a silicon wafer, and a photoresist layer to prevent noxious reflection of exposure light on the substrate surface in the photolithographic patterning work for the manufacture of semiconductor devices comprising: (A) a nitrogen-containing organic compound, as a crosslinking agent, having, in a molecule, at least two amino groups each substituted by at least one substituent selected from the group consisting of hydroxyalkyl groups and alkoxyalkyl groups; and (B) a homopolymer of or a copolymer of a mixture of monomers of which one is a (meth)acrylic acid ester of an aromatic hydroxyl compound selected from the group consisting of bisphenylsulfone compounds having at least one hydroxyl group in a molecule and benzophenone compounds having at least one hydroxyl group in a molecule in a specified proportion.Type: GrantFiled: December 4, 1997Date of Patent: September 7, 1999Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Etsuko Iguchi, Mitsuru Sato
-
Patent number: 5869185Abstract: A polycarbonate substrate coated with an acrylic coating containing at least one polybenzoylresorcinol, and optionally a silicone hardcoat on the acrylic coating, wherein said at least one polybenzoylresorcinol has the formula ##STR1## wherein each A is independently a substituted or unsubstituted monocyclic aromatic radical wherein any substituents are hydrogen, halogen, alkoxy, C.sub.1-8 alkyl, or hydroxy, and R is hydrogen or a linear or branched aliphatic radical having less that about 10 carbon atoms.Type: GrantFiled: June 21, 1996Date of Patent: February 9, 1999Assignee: General Electric CompanyInventors: Steven Roger Bahr, James Edward Pickett, Karen Kueck Webb
-
Patent number: 5382605Abstract: A thermoplastic molding composition resistant to the degradation induced by ionizing-radiation is disclosed. The composition contains an aromatic polycondensate and an agent which is a compound conforming structurally to formula (I) ##STR1## or which is a member selected from the group consisting of oligocarbonate, polycarbonate, copolycarbonate, polyestercarbonate and polyesters which contain structural units conforming to formula (Ia) ##STR2## wherein R.sup.1 to R.sup.10 and X are defined. The composition is suitable for the manufacture of shaped articles, especially articles useful in medical applications.Type: GrantFiled: February 15, 1994Date of Patent: January 17, 1995Assignees: Miles Inc., Bayer AktiengesellschaftInventors: Douglas G. Powell, Charles E. Lundy, Gerhard Fennhoff, Ralf Hufen, Klaus Kircher
-
Patent number: 5276258Abstract: Mixtures composed of a mercaptomethylphenol of the formula ##STR1## in which n and R.sub.1 to R.sub.4 are as defined in claim 1, and epoxidised fatty acids or fatty acid esters are suitable, in particular, for stabilisation of compositions which contain elastomers or tackifying resins or elastomers and tackifying resins.Type: GrantFiled: December 2, 1992Date of Patent: January 4, 1994Assignee: Ciba-Geigy CorporationInventors: Gerrit Knobloch, Heinrich Martin
-
Patent number: 5212224Abstract: Polyamide moulding materials which have been impact-modified with diene and/or acrylic rubbers and can be processed by thermoplastic means and contain special diphenols.Type: GrantFiled: February 27, 1990Date of Patent: May 18, 1993Assignee: Bayer AktiengesellschaftInventors: Rolf-Volker Meyer, Friedrich Fahnler, Rolf Dhein, Martin Wandel
-
Patent number: 5175200Abstract: The present invention provides: a novel poly(arylene sulfide) (PAS) composition having an increased comparative tracking index (CTI) rating; a novel method wherein the inventive composition is formed and molded to produce a useful article; a novel article produced by the inventive molding method; a novel method wherein the inventive composition is formed and used to encapsulate an article; and a novel encapsulated article produced by the inventive encapsulation method. The inventive PAS composition comprises: poly(arylene sulfide) resin; talc; and an amount of hindered phenol sufficient to increase the composition's CTI rating.Type: GrantFiled: November 6, 1991Date of Patent: December 29, 1992Assignee: Phillips Petroleum CompanyInventor: Nathaniel Harry, Sr.
-
Patent number: 5169890Abstract: The present invention relates to a thermoplastic hot melt adhesive comprising(a) a block copolymer, said block copolymer being prepared utilizing a bromide based coupling agent, said block copolymer comprising at least two monoalkenyl arene polymer end blocks A and at least one elastomeric conjugated diene polymer mid block B, and said block copolymer having about 8 to about 65 percent by weight of said monoalkenyl arene polymer block content, each polymer block A having an average molecular weight of between about 5,000 and about 125,000, and each polymer block B having an average molecular weight of between about 10,000 and about 300,000,(b) a polyisobutylene rubber,(c) a partially cross-linked polyisobutylene rubber(d) a compatible tackifying resin,(e) a phenolic antioxidant,(f) a non-reactive phenolic resin,(g) a fluorocarbon surface active agent, and(h) a petroleum derived wax.Type: GrantFiled: October 11, 1991Date of Patent: December 8, 1992Assignee: Ciba-Geigy CorporationInventors: Rajan Eadara, Julie Szymborski, Irvin Jackson
-
Patent number: 5166241Abstract: Thiol compounds are combined with an organometallic halide or metallic halide to provide thermal stability to vinyl halide polymers.Type: GrantFiled: November 22, 1989Date of Patent: November 24, 1992Inventor: Simon Kornbaum
-
Patent number: 5132344Abstract: A stabilized polyethylene composition containing catalyst residues comprising at least one transition metal comprises (a) polyethylene, (b) 100 to 2000 ppm by weight based on the total weight of the composition of one or more antioxidants of the phenolic type and (c) 100 to less than 2000 ppm by weight, based on the total weight of the composition of zinc oxide but substantially no calcium stearate. The composition has improved color and improved resistance to coloration effects.Type: GrantFiled: April 30, 1991Date of Patent: July 21, 1992Assignee: BP Chemicals LimitedInventor: Jean-Baptiste Matteodo
-
Patent number: 5130198Abstract: Polymeric-containing compositions having improved oxidative stability have the polymer and at least two stabilizing agents. These agents are selected from low temperature antioxidants such as alkali metal and alkaline earth metal hypo or hydrogen phosphites, high temperature antioxidants such as: alkali metal or alkaline earth metal phenylphosphonates, thioethers like dialkyl thioalkylionate and polymers thereof and metal deactivating agents like polydentate ligands and ethylene diamine-tetracidic acid compounds. The composition can be a coating composition for substrates including those like fibrous material including fibers, bundles of fibers, strands, roving, flakes and beads. The composition can be present as a dried residue on the substrate. For fibrous substrates, the composition also has at least one organofunctional silane coupling agent, may also have processing aids such as epoxy polyester polymers and/or lubricants.Type: GrantFiled: April 27, 1990Date of Patent: July 14, 1992Assignee: PPG Industries, Inc.Inventors: Robert G. Swisher, Peter C. Gaa, James W. Kasunic
-
Patent number: 5124388Abstract: Disclosed are films, containers and container liners comprising a copolyester having repeat units from terephthalic acid and 1,4-cyclohexanedimethanol, and a hindered phenolic antioxidant.Type: GrantFiled: May 7, 1990Date of Patent: June 23, 1992Assignee: Eastman Kodak CompanyInventors: Wayne P. Pruett, Charles W. Ramsey, Sarah J. Webb, Joey C. Carico
-
Patent number: 5059661Abstract: 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: GrantFiled: August 21, 1990Date of Patent: October 22, 1991Assignee: Ciba-Geigy CorporationInventor: Gerrit Knobloch
-
Patent number: 5008459Abstract: 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: GrantFiled: December 22, 1987Date of Patent: April 16, 1991Assignee: Ciba-Geigy CorporationInventors: Hans R. Meier, Samuel Evans, Paul Dubs
-
Patent number: 4921890Abstract: A process for improving the flame retardancy, hygroscopic, soil release and other properties of a polymer substrate is provided in which the substrate is contacted with a suitable aqueous mixture containing a water-soluble monomer and an organic halogen-containing hydrophobic carrier compound at a temperature of between about 40.degree. C. to 100.degree. C. Polymerization of the monomer is thereafter initiated by a chemical or physical initiator to form a polymer evenly disposed on the substrate. The flame retardancy, hygroscopic, soil release and other surface properties of the substrate are thereby improved. The mixture may be in the form of an emulsion wherein the hydrophobic carrier compound is emulsified by an appropriate agent. The invention also pertains to the improved substrates prepared in accordance with the present process.Type: GrantFiled: April 24, 1987Date of Patent: May 1, 1990Assignee: Intera Company, Ltd.Inventors: Katsumi Hayashi, Gregory A. Lentz
-
Patent number: 4908428Abstract: Quick-crystallizing polyester compositions comprising a mixture consisting or consisting essentially of a polyester thermoplastic resin and of 0.1-10% by weight of a nucleant selected from polymeric-base salts, or mixtures of salts, of alkali metals or alkaline-earth metals of the formula:M--(OOC--C.sub.6 H.sub.4 --COO--CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2).sub.m (OOC--Z--COOY).sub.n (ABRX) (1)whereinM is an alkali or alkaline-earth metal;Y is a group --CH.sub.2 CH.sub.2 --,--(CH.sub.2).sub.4 -- or --CH.sub.2 CH.sub.2 OCH.sub.2 CH.sub.2 --;Z is a group --C.sub.6 H.sub.4 --, or a group --(CH.sub.2).sub.q --, q being an integer from 7 to 10;A is an anion selected from the group consisting of carboxylate, sulphonate, sulphinate, phosphonate, phosphinate;B may be a single bond or a group selected from the group consisting of --CH.dbd.CH--, --CH.sub.2 --, --CH.sub.2 CH.sub.2 --;R is an arylene radical containing from 1 to 3 aromatic rings or a heterocyclic ring;X is a hydrogen atom or a group --COOM or --COO(CH.Type: GrantFiled: March 14, 1989Date of Patent: March 13, 1990Assignee: Montefibre S.p.A.Inventors: Catia Bastioli, Vittorio Bellotti, Luciano Del Giudice
-
Patent number: 4900772Abstract: A curable resin composition comprising(A) 100 parts by weight of an elastomeric organic polymer of a saturated hydrocarbon having at least one silicon-containing group cross-linkable by the formation of a siloxane bond at the molecular ends, and(B) 0.01 to 10 parts by weight of a sulfur-containing antioxidant. The curable resin composition produces a cured product having excellent heat resistance.Type: GrantFiled: April 11, 1988Date of Patent: February 13, 1990Assignee: Kanegafuchi Kagaku Kogyo Kabushiki KaishaInventors: Masayoshi Imanaka, Koji Noda, Katsuhiko Isayama
-
Patent number: 4874804Abstract: Hot melt packaging adhesive compositions consisting essentially of 35 to 45% by weight of an ethylene n-butyl acrylate copolymer containing 25-45% by weight, preferably 30 to 40% n-butyl acrylate and having a melt index of at least 50; 35 to 55% of a terpene phenolic tackifier; and 10 to 20% by weight of a high melting synthetic wax provide adhesives characterized by an excellent balance of high and low temperature performance without sacrifice to machinability or thermal stability.Type: GrantFiled: August 24, 1988Date of Patent: October 17, 1989Assignee: National Starch and Chemical CorporationInventors: Francis X. Brady, Thomas F. Kauffman