Two Or More Chalcogen Atoms In The Same Hetero Ring Patents (Class 524/108)
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Patent number: 6197853Abstract: A thermoplastic polycarbonate molding composition having improved resistance to gamma radiation-induced yellowing is disclosed. Particularly suitable for the manufacture of devices geared for medical applications, the composition contains an additive amount of a stabilizing compound conforming structurally to where R1 denotes a C1-30-alkyl group and R2 denotes an aryl radical.Type: GrantFiled: July 1, 1999Date of Patent: March 6, 2001Assignee: Bayer CorporationInventors: Daniel H. Bolton, Sivaram Krishnan, David M. Derikart, James B. Johnson
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Patent number: 6194493Abstract: The present invention relates to the use of compounds of the formula (I) where the substituents are as defined in the description as a stabilizer for organic material against the harmful effect of light, oxygen and heat.Type: GrantFiled: September 3, 1998Date of Patent: February 27, 2001Assignee: Clariant GmbHInventors: Thomas Stährfeldt, Mathias Mehrer
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Patent number: 6184279Abstract: Coating compositions and coated substrates with the cured coatings of at least one curable film-forming resinous material along with an effective degassing amount of a material having the structure: and dimer derivatives thereof wherein R and R′ are the same or different and are primary alkyl groups with 1 to 6 carbon atoms including methyl or an aromatic group containing at least one heteroatom. Coating compositions like powder coating compositions have the resinous material and material of Structure I and/or dimer derivatives thereof along with one or more crosslinking agents. Optionally, the coating composition like a powder coating can have pigment(s), flow control agent(s), microcrystalline wax(es), light stabilizing agent(s), and/or antioxidant(s) and the like.Type: GrantFiled: June 2, 1998Date of Patent: February 6, 2001Assignee: PPG Industries Ohio, Inc.Inventors: Lawrence G. Anderson, Karen S. Rechenberg, Karen A. Barkac
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Patent number: 6180700Abstract: A diphosphite is provided derived from phosphorous trihalide, tetra alkyl hindered bisphenol, and a neoalkyl diol. The phosphites exhibit improved stability and are useful as thermal oxidative stabilizers for thermoplastic compositions.Type: GrantFiled: February 6, 1998Date of Patent: January 30, 2001Assignee: General Electric CompanyInventor: James A. Mahood
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Patent number: 6177488Abstract: The present invention provides an aqueous colored base coating composition (A) comprising a hydroxyl- and carboxyl-containing acrylic resin (A-1), a melamine resin (A-2), an alicyclic epoxy-containing compound (A-3), a neutralizing agent (A-4) and a coloring pigment (A-5). The present invention further provides a method for forming a topcoat which comprises applying the aqueous colored base coating composition (A) to a substrate and applying to the base coat an organic solvent type clear coating composition (B) to be cured by the crosslinking reaction between a carboxyl group and an epoxy group.Type: GrantFiled: August 13, 1996Date of Patent: January 23, 2001Assignee: Kansai Paint Company, LimitedInventors: Akira Kasari, Hiroaki Oda, Junichi Kajima, Mikio Shimakawa
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Patent number: 6143813Abstract: Propylene resin composition containing propylene-.alpha.-olefin random copolymer, nucleating agent and spherical magnesium silicate particles. Stretched films.Type: GrantFiled: March 24, 1999Date of Patent: November 7, 2000Assignee: Japan Polychem CorporationInventors: Tadashi Sezume, Yasunori Nakamura
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Patent number: 6110998Abstract: A latex containing particles of a film-forming polymer emulsified or suspended in an aqueous medium and a coalescing solvent comprising trimethylolpropane monocyclic formal (TMPMCF) or trimethylolethane monocyclic formal (TMEMCF) is disclosed.Type: GrantFiled: May 8, 1998Date of Patent: August 29, 2000Assignee: Celanese International CorporationInventors: William E. Slinkard, Donald K. Raff
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Patent number: 6083653Abstract: Cyclosaccharide-boron complexes consisting of 1 to 4 cyclodextrin units and one borate radical of the formula (I): ##STR1## have good charge control properties and lend themselves excellently to dispersion in toner, powder coating and electret binders.Type: GrantFiled: March 16, 1998Date of Patent: July 4, 2000Assignee: Clariant GmbHInventors: Rudiger Baur, Hans-Tobias Macholdt
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Patent number: 6051638Abstract: Polyolefin pipes, and particularly gas pipe, in which the olefin polymer has been nucleated with from 1,500 to 10,000 ppm based on the weight of the polyolefin of a nucleating agent which is a dibenzylidene derivative of sorbitol or xylitol have an improved long term hydrostatic strength.Type: GrantFiled: February 6, 1998Date of Patent: April 18, 2000Inventors: James Arthur Auger, Stan Allan Grabow, Alexei Kazakov, Richard Kolasa
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Patent number: 6047828Abstract: Polyolefin drums in which the olefin polymer has been nucleated with from 1,500 to 10,000 ppm based on the weight of the polyolefin of a nucleating agent which is a dibenzylidene derivative of sorbitol or xylitol can, when full of liquid, withstand a drop of at least 10 feet without failure.Type: GrantFiled: March 3, 1998Date of Patent: April 11, 2000Inventors: Henry F. Hay, W. Laurie Douglas, James Jeffrey Preece, Mark Aubee, Nancy Conley
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Patent number: 6043303Abstract: This invention provides hexagonal crystals of a diacetal represented by the formula (1) ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl group having 1 to 4 carbon, atoms or a halogen atom, each of m and n is an integer of 0 to 2 and p is 0 or 1, a nucleating agent comprising the diacetal of the formula (1), wherein part or the whole of the diacetal is in the form of hexagonal crystals, a polyolefin resin composition and a molded product each comprising a polyolefin resin and the nucleating agent, and a method for molding the polyolefin resin composition.According to the invention, the occurrence of fish eyes and coloration in a molded product can be prevented, the optical, mechanical and thermal properties of the molded product are superior and the molding cycle is shortened.Type: GrantFiled: September 3, 1997Date of Patent: March 28, 2000Assignee: New Japan Chemical Co. Ltd.Inventors: Toshiaki Kobayashi, Shizuyoshi Sakai
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Patent number: 6031034Abstract: A polypropylene-based resin composition comprising:(A) 50% by weight or more of a polypropylene-based resin;(B) 1 to 40% by weight of an inorganic filler; and(C) 0 to 40% by weight of an ethylene-.alpha.-olefin random copolymer rubber and/or a vinyl aromatic compound-containing rubber, the total amount of (A), (B) and (C) being 100% by weight, and(D) as antistatic agents, a glycerin C.sub.16 -C.sub.18 monofatty acid ester wherein the C.sub.18 content is 50% by weight or more; a diglycerin C.sub.16 -C.sub.18 fatty acid ester wherein the C.sub.18 content C.sub.16 -C.sub.18 alkyldiethanolamine wherein the C.sub.18 content is 50% by weight or more.Type: GrantFiled: April 17, 1998Date of Patent: February 29, 2000Assignee: Sumitomo Chemical Company, LimitedInventors: Akihiro Morimoto, Teruhiko Doi, Kenichi Ohkawa
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Patent number: 6022921Abstract: The mechanical properties of addition-crosslinked silicone rubber are improved when the silicone rubber is brought into contact with a compound (A) having at least one aliphatically unsaturated multiple bond. In particular, the compression set is lowered.Type: GrantFiled: November 4, 1998Date of Patent: February 8, 2000Assignee: Wacker-Chemie GmbHInventors: Frank Achenbach, Christof Worner, Armin Fehn, Otto Rothenaicher
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Patent number: 5998520Abstract: A thermoplastic molding composition is disclosed comprising (A) at least one resinous component selected from the group consisting of (i) a homogeneous blend of polycarbonate resin and polycaprolactone and (ii) a copoly(carbonate-lactone) copolymer, and (B) at least one compound selected from a group consisting of benzopyrans, naphthopyrans, spirobenzopyrans, spironaphthopyrans, spirobenzoxazines, spironaphthoxazines, fulgides and fulgimides. The composition which contains the photochromic compound at an amount of 0.01 to 1.0 parts per hundred parts of weight of said (A) exhibits good photochromic properties.Type: GrantFiled: July 2, 1997Date of Patent: December 7, 1999Assignee: Bayer CorporationInventors: Sivaram Krishnan, Robert A. Pyles, James B. Johnson, Michael P. Jenkins, Timothy J. Pike
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Patent number: 5981636Abstract: Modifying agents for polyolefins enhance nucleation and crystallization of the polyolefins and provide improved optical and/or physical properties. The modifying agents are compounds of formulas (I) and (II): or a salt thereof, wherein X, Y, R1, R2, R3 and R4 and R8 are as defined in the specification.Type: GrantFiled: December 27, 1996Date of Patent: November 9, 1999Assignee: 3M Innovative Properties CompanyInventors: Stephen E. Amos, Kent E. Nielsen, Chantelle McRoberts, Markus A. Wicki
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Patent number: 5977206Abstract: A polycarbonate resin composition according to the present invention is suited to be used for medical supplies or appliances and shows a very low yellow discoloration when exposed to an ionizing radiation for sterilization. The polycarbonate resin composition comprises 100 parts by weight of a polycarbonate resin; 0.01 to 5 parts by weight of an aromatic compound containing oxy group or carbonyl group; and 0.01 to 5 parts by weight of at least one compound selected from the group consisting of: (A) a compound containing cyclic acetal group; (B) a sulfone compound; (C) a sulfoxide compound; (D) polyalkylene glycol, an ether of polyalkylene glycol or an ester of polyalkylene glycol; (E) a compound containing sulfonate group; and (F) an aromatic hydrocarbon-aldehyde resin.Type: GrantFiled: January 12, 1998Date of Patent: November 2, 1999Assignee: Mitsubishi Engineering-Plastics Corp.Inventors: Shinya Miya, Satoshi Kanayama, Ken Shimomai
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Patent number: 5965651Abstract: A liquid-absorbing material composition containing a crosslinking agent (component A), N-vinylcarboxamide copolymer (component B) having a functional group capable of crosslinking with the component A, water (component C), a water-soluble organic solvent (component D) and a plasticizer (component E), a molded liquid-absorbing material prepared from the composition, a method of manufacturing the molded liquid-absorbing material, and uses thereof are provided. The liquid-absorbing material composition has a high flowability, and gives a uniform continuous layer so that it can be directly molded readily into film- or sheet-shaped molded liquid-absorbing material without requiring secondary processing as in the case of conventional water-absorbing polymer.Type: GrantFiled: November 22, 1996Date of Patent: October 12, 1999Assignee: Showa Denko K.K.Inventors: Tetsuya Ishii, Tetsuhiko Yamaguchi
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Patent number: 5961914Abstract: A process for thermoforming a polyolefin resin sheet is provided having an aromatic aldehyde-polyhydric alcohol condensation product incorporated in the sheet to limit deformation of the sheet during the heating step.Type: GrantFiled: May 3, 1996Date of Patent: October 5, 1999Assignee: Milliken & CompanyInventors: Michael J. Mannion, Nathan A. Mehl
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Patent number: 5959012Abstract: An epoxylated DBR, dibenzoylresorcinol and various derivatives thereof have been prepared to show usefulness in coatings due to compatibility and solubility. Such coatings can be acrylics, epoxies, or silicone hardcoats which are thermally or photo cured thermoset, or thermoplastic coating materials in a variety of solvent types. The disclosed UV absorber also has the advantage of a higher molecular weight and lower volatility than DBR alone thus providing processing advantages.Type: GrantFiled: August 11, 1997Date of Patent: September 28, 1999Assignee: General Electric CompanyInventors: Amy Kathleen Simonian, Gregory Ronald Gillette, James Edward Pickett
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Patent number: 5958305Abstract: An optically isotropic film of an aromatic polyethersulfone, which is useful as a substrate for a liquid crystal display device, and an optically anisotropic, uniaxially oriented film of an aromatic polyethersulfone, which is useful as a phase difference plate for a liquid crystal display device. The optically isotropic film is produced by casting an aromatic polyethersulfone solution composition comprising 15 to 40 parts by weight of a solvent which contains at least 60% by weight of 1,3-dioxolane and can dissolve an aromatic polyethersulfone and 10 parts by weight of the aromatic polyethersulfone, on a substrate, and heating the cast solution composition containing a solvent to evaporate the solvent off.Type: GrantFiled: February 12, 1998Date of Patent: September 28, 1999Assignee: Teijin LimitedInventors: Takashi Shiro, Kaoru Iwata, Hideaki Nitta, Takeshi Sasaki, Utami Yonemura
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Patent number: 5952407Abstract: A novel thermosettable composition-of-matter is disclosed. One embodiment of the composition-of-matter includes a polymeric thermosettable ingredient having at least three acetoacetoxy-type functional pendant moieties as well as at least three acid-functional pendant moieties. Another embodiment of the composition-of-matter includes at least two polymeric thermosettable ingredients, one of which includes at least three acid-functional pendant moieties and the other of which includes at least three acetoacetoxy-type functional pendant moieties. The novel composition is characterized in that the acid-functional and acetoacetoxy-type functional pendant moieties crosslinkably-react together, when subjected to elevated-temperature conditions for a predetermined period of time, thereby producing a crosslinked polymeric network. The novel thermosettable composition-of-matter can be used "as is" if either of the polymeric thermosettable components is a "fluid" (i.e., is able to flow) at room temperature.Type: GrantFiled: August 28, 1996Date of Patent: September 14, 1999Assignee: S. C. Johnson Commercial Markets, Inc.Inventors: Husam A. A. Rasoul, James R. Beam
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Patent number: 5948839Abstract: Polypropylene impact copolymer compositions are provided which contain a homopolymer phase of predominantly homopolymeric polypropylene, a copolymer phase of copolymerized ethylene and propylene, and a nucleating agent. The inventive compositions have a rubber content (Fc) in the range of 25 to 45% by weight, a crystallization temperature in the range of 122 to 132.degree. C., a melt flow in the range of about 7 to about 60 dg/min, and a ratio of the intrinsic viscosity of the copolymer phase to the intrinsic viscosity of the homopolymer phase of 1.4 to about 1.9. The polypropylene impact copolymer compositions may be used to form cast films which preferably are soft, quiet, and suitable for use in products to be used next to the skin, such as diapers, adult incontinence pads and feminine hygiene products.Type: GrantFiled: May 28, 1997Date of Patent: September 7, 1999Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Ananda M. Chatterjee
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Patent number: 5948838Abstract: The present invention relates to a polycarbonate resin composition comprising 100 parts by weight of a polycarbonate resin; 0.01 to 5 parts by weight of a compound containing oxymethylene unit, a compound containing oxymethylene unit having substituent or a cyclic ether compound having substituent.Type: GrantFiled: February 25, 1997Date of Patent: September 7, 1999Assignee: Mitsubishi Engineering-Plastics Corp.Inventors: Shinya Miya, Satoshi Kanayama
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Patent number: 5869565Abstract: Described are compositions protected against thermal and oxidative degradation, comprisingA) a polyether polyol or mixtures of such polyols,B) at least one benzofuranone derivative of formula I ##STR1## wherein either two of R.sub.1, R.sub.7, R.sub.8, R.sub.9 and R.sub.10 are each independently of the other C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, the others being hydrogen,orR.sub.7 to R.sub.10 are hydrogen, or at most two of these radicals are each independently of the other methyl or methoxy, and R.sub.1 is --O--CHR.sub.3 --CHR.sub.5 --O--CO--R.sub.6,R.sub.2 and R.sub.4 are each independently of the other hydrogen or C.sub.1 -C.sub.6 alkyl,R.sub.3 is hydrogen or C.sub.1 -C.sub.4 alkyl,R.sub.5 is hydrogen, phenyl or C.sub.1 -C.sub.6 alkyl, andR.sub.6 is C.sub.1 -C.sub.4 alkyl,C) at least one compound from group of the phenolic antioxidants, and/orD) at least one compound from group of the amino antioxidants of the secondary amine type.Type: GrantFiled: May 6, 1996Date of Patent: February 9, 1999Assignee: Ciba Specialty Chemicals CorporationInventor: Margot Clauss
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Patent number: 5856385Abstract: The present invention relates to additive mixtures having a nucleating action for plastic compositions, comprising nucleating agents based on dibenzylidenesorbitol, or derivatives therof, and amido-functional compounds. The aldehydes formed from the nucleating agents by decomposition during processing and use of the plastics treated therewith are collected and bound by adsorption, absorption and/or chemcial reaction.Type: GrantFiled: April 7, 1997Date of Patent: January 5, 1999Assignee: Hoechst AktiengesellschaftInventors: Mathias Mehrer, Gerhard Pfahler, Thomas Stahrfeldt
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Patent number: 5837758Abstract: Compositions are provided which comprise a poly(phenylene ether) resin, a poly(arylene sulfide) resin and an ortho ester compound. The compositions can further comprise compatibilizing agents and reinforcing fillers to provide compositions that exhibit low flash molding characteristics. Articles molded from these compositions are useful in the electrical connector industry.Type: GrantFiled: July 25, 1996Date of Patent: November 17, 1998Assignee: General Electric CompanyInventors: Sterling Bruce Brown, Chorng-Fure Robin Hwang, Steven Thomas Rice, James Joseph Scobbo, Jr., John Bennie Yates, III, Farid F. Khouri
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Patent number: 5821292Abstract: The use of 3-arylacrylic esters I ##STR1## where Ar is an aryl radical which can additionally carry substituents,R.sup.1 is the residue of an n-hydric aliphatic polyol having up to 20 carbon atoms, where the carbon chain can be interrupted by up to 9 non-adjacent oxygen atoms, or of an n-hydric cyclo-aliphatic polyol having 5 to 20 carbon atoms in which ring carbon atoms can also be replaced by non-adjacent oxygen atoms,R.sup.2 and R.sup.3 are hydrogen or C.sub.1 --C.sub.4 -alkyl, andn is a number from l to 10,as stabilizers, in particular against the action of light, for non-living organic material.Type: GrantFiled: May 12, 1997Date of Patent: October 13, 1998Assignee: BASF AktiengesellschaftInventors: Alexander Aumuller, Martin Holderbaum, Wolfgang Goetze, Jurgen Krockenberger, Hubert Trauth
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Patent number: 5807912Abstract: Polycarbonate resins are freed of unreacted residues of the dihydric phenol reactants employed in their preparation by heating the resins in the presence of ortho esters or ortho carbonates.Type: GrantFiled: January 31, 1997Date of Patent: September 15, 1998Assignee: General Electric CompanyInventors: Pin-pin Wu, Farid F. Khouri
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Patent number: 5804621Abstract: A polymeric composition in which (D) a phenol antioxidant having a specific skeleton 5-t-butyl-3-methyl-4-hydroxyphenyl, (C) a hindered amine photostabilizer having a molecular weight of not less than 400, and (D) a specific phosphorus compound dihydrooxaphosphaphenanthrene are included in (A) a polymeric compound. This polymeric composition is excellent in thermal oxidation degradation resistance and discoloration of coloring resistance in contacting with a combustion gas or the like.Type: GrantFiled: November 22, 1996Date of Patent: September 8, 1998Assignee: Sumitomo Chemical Company, LimitedInventors: Kenji Kimura, Motohiko Samizo
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Patent number: 5776370Abstract: Disclosed are charge transfer complexes based on a polyaniline in combination with an organic electron electron acceptor. The resulting conductive polymer possesses enhanced electrical, thermal and solubility properties over known conductive polymers. Also disclosed is a charge transfer based composition of matter whose electrical conductivity, chemical and physical properties are further enhanced by doping with protonic acid. The composition is prepared by a simple method and has widespread application in the printed circuit field, and in various other devices.Type: GrantFiled: April 25, 1996Date of Patent: July 7, 1998Assignee: International Business Machines CorporationInventors: Ali Afzali-Ardakani, Stephen Leslie Buchwalter
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Patent number: 5770453Abstract: A method for the detection of chemical agent present in a material comprising exposing a calixarene, having redox active substituents on its para rim, to a solution or suspension derived by admixture of all or some of the material with a liquid measuring any change in electrical behavior of the calixarene during or after exposure to the solution or suspension as compared to a reference condition, and relating such change in electrical behavior to the presence of chemical agent. Preferably, the calixarene exposed to the solution or suspension is a calix?4!arene or general formula (J), wherein Y.sup.1 to Y.sup.4 are independently selected from hydrogen, alkyl, alkenyl, aryl, aralkyl or a redox active substituent and R.sup.1 to R.sup.4 are independently selected from hydrogen, alkyl, alkenyl, aryl, aralkyl, or a polymerisable moiety, wherein at least one of Y.sup.1 to Y.sup.4 is a redox active substituent.Type: GrantFiled: April 23, 1996Date of Patent: June 23, 1998Assignee: The Secretary of State for Defence in her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern IrelandInventors: Paul Beer, Matthew Shade, Zheng Chen
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Patent number: 5759449Abstract: An optically isotropic film of an aromatic polyethersulfone, which is useful as a substrate for a liquid crystal display device, and an optically anisotropic, uniaxially oriented film of an aromatic polyethersulfone, which is useful as a phase difference plate for a liquid crystal display device. The optically isotropic film is produced by casting an aromatic polyethersulfone solution composition comprising 15 to 40 parts by weight of a solvent which contains at least 60% by weight of 1,3-dioxolane and can dissolve an aromatic polyethersulfone and 10 parts by weight of the aromatic polyethersulfone, on a substrate, and heating the cast solution composition containing a solvent to evaporate the solvent off.Type: GrantFiled: January 31, 1997Date of Patent: June 2, 1998Assignee: Teijin LimitedInventors: Takashi Shiro, Kaoru Iwata, Hideaki Nitta, Takeshi Sasaki, Utami Yonemura
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Patent number: 5753728Abstract: Polymeric compositions well suited for conversion into electroconductive shaped articles, e.g., films, comprise at least one convertible polymer (Pm) and at least one amphiphilic organic compound (B) which comprises a charge transfer complex or a radical ion salt having the formula (I): D.sub.d A.sub.a Z.sub.z, in which D is an electron donor; A is an electron acceptor; Z is a doping agent which itself can be a non-amphiphilic electron donor or electron acceptor, with the proviso that at least one of D and A is amphiphilic and contains at least one saturated or unsaturated hydrocarbon substituent having at least 10 carbon atoms; d is a number equal to or greater than 0; a is a number equal to or greater than 0; and z is a number equal to or greater than 0, with the further proviso that at least one of the symbols d and a is a number greater than 0.Type: GrantFiled: June 5, 1995Date of Patent: May 19, 1998Assignee: Rhone-Poulenc ChimieInventors: Bernard Chauvel, Joel Richard
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Patent number: 5736599Abstract: A diphosphite is provided derived from phosphorous trihalide, tetra alkyl hindered bisphenol, and a neoalkyl diol. The phosphites exhibit improved stability and are useful as thermal oxidative stabilizers for thermoplastic compositions.Type: GrantFiled: December 31, 1996Date of Patent: April 7, 1998Assignee: General Electric CompanyInventor: James A. Mahood
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Patent number: 5736193Abstract: The present invention relates to solderable wire-coating compositions based on hydroxyl group-containing polyesters, blocked polyisocyanates, organic solvents and catalysts, which are characterized in that they containA) from 7 to 25% by weight of hydroxyl group-containing polyesters,B) from 55 to 70% by weight of a fully blocked aromatic diisocyanate adduct or of a plurality of fully blocked aromatic diisocyanate adducts,C) from 0.1 to 3% by weight of catalysts,D) from 1 to 8% by weight of a polyol or of a plurality of polyols, andE) from 1 to 36.9% by weight of an alkylene carbonate or of a plurality of alkylene carbonates,the total weight of the wire-coating compositions in each case being 100% by weight.The present invention also relates to a process for the continuous coating of wires using the solderable wire-coating compositions described.Type: GrantFiled: September 5, 1995Date of Patent: April 7, 1998Assignee: BASF Lacke +Farben, AGInventors: Michael Schink, Klaus Wilhelm Lienert, Joachim Runge, Silvia Hentschel
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Patent number: 5726228Abstract: The present invention relates to the use of cyclic carbonates as demoulding agents for thermoplastic polycarbonates, and to the incorporation of these cyclic carbonates into the thermoplastic polycarbonates.Type: GrantFiled: December 3, 1996Date of Patent: March 10, 1998Assignee: Bayer AktiengesellschaftInventors: Ralf Kaufmann, Wolfgang Ebert, Hartmut Lower, Jurgen Kadelka, Claus Wulff, Gottfried Zaby
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Patent number: 5717013Abstract: A polypropylene resin composition comprising (a) 100 parts by weight of a propylene polymer having an isotactic pentad fraction of 96% or more which is determined by .sup.13 C-NMR, (b) 0.01-5 parts by weight of at least one alkali salt selected from the group consisting of alkali carboxylates, alkali .beta.-diketonates and alkali salts of .beta.-ketacetate, (c) 0.01-5 parts by weight of an organophosphoric compound, and (d) 0.01-0.5 parts by weight of a lithium aluminum compound. The organophosphoric compound is represented by the following formula (I): ##STR1## wherein R.sub.1 is hydrogen or an alkyl group having 1 to 4 carbon atoms, each of R.sub.2 and R.sub.3 is independently hydrogen or an alkyl group having 1 to 12 carbon atoms, M is a metal atom of an element selected from the group consisting of Group III, IV, XIII and XIV elements of the Periodic Table, and X is --OH when M is a metal atom of an element of Group III or XIII of the Periodic Table or X is .dbd.O or (--OH).sub.Type: GrantFiled: August 22, 1996Date of Patent: February 10, 1998Assignee: Tonen Chemical CorporationInventors: Kenji Ichiyanagi, Masayuki Yamazaki
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Patent number: 5695694Abstract: An acylated cellulose film having a high optical isotropy and uniformity is produced by dissolving an acylated cellulose in a solvent substantially free from water and including, as a principal component, 1,3-dioxolane in a ratio in weight of the acylated cellulose to the solvent of 10/250 to 10/15; spreading the acylated cellulose solution on a film-forming surface of a support; and drying, for example, initially drying the spread solution layer on film-forming surface so as to reduce the content of the residual solvent in the resultant film to 5 to 30% by weight; removing the resultant residual solvent-containing film from the film-forming surface; and finally drying the removed film, while allowing the film to shrink in the transversal direction thereof, at a drying temperature controlled continuously or intermittently to a level satisfying the relationship (I): (Tg'-50.degree. C.).ltoreq.T.ltoreq.(Tg'+20.degree. C.) (I), wherein T is the drying temperature (.degree.C.Type: GrantFiled: June 6, 1995Date of Patent: December 9, 1997Assignee: Teijin LimitedInventors: Kaoru Iwata, Masanori Abe, Utami Yonemura, Takeshi Sasaki
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Patent number: 5663223Abstract: A liner composition for a potable fluid container closure element which includes an inorganic sulfite such as sodium sulfite and/or a tocopherol compound such as dl-.alpha.-tocopherol (vitamin E) for preventing off-flavors due to the presence of aldehydes in the fluid. Also, a potable fluid container of a reservoir element for containing a potable fluid, the reservoir element having an opening, a closure element capable of being attached to the opening, and the liner composition associated with the closure element. Also, a method of improving the taste of a potable fluid such as bottled water by use of the container and one of the previously described liner compositions associated therewith. Also, an improved method for processing the composition into closure liners based upon the prevention of the development of off-flavor-causing substances therein.Type: GrantFiled: August 11, 1994Date of Patent: September 2, 1997Assignee: Zapata Technologies, Inc.Inventors: Fred N. Teumac, Mahmood R. Rassouli, Janine M. Rusnock, Anthony Irwin
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Patent number: 5650098Abstract: Described are novel reversible photochromic 2H-naphtho[1,2-b]pyran compounds, examples of which are compounds having certain substituents at the 5 and 6-positions of the naphtho portion of the naphthopyran and at the 2-position of the pyran ring, e.g., 2,2-bis(4-methoxy phenyl)-5-methoxycarbonyl-6-morpholino-2H-naphtho[1,2-b]pyran. Certain substituents may also be present at the number 7, 8, 9 or 10 carbon atoms of the naphtho portion of the naphthopyran. Also described are organic host materials that contain or that are coated with such compounds. Articles such as ophthalmic lenses or other plastic transparencies that incorporate the novel naphthopyran compounds or combinations thereof with complementary photochromic compounds, e.g., spiro(indoline) type compounds, are also described.Type: GrantFiled: October 13, 1995Date of Patent: July 22, 1997Assignee: Transitions Optical, Inc.Inventors: Anil Kumar, David B. Knowles, Barry Van Gemert
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Patent number: 5645766Abstract: An optically isotropic film of an aromatic polyethersulfone, which is useful as a substrate for a liquid crystal display device, and an optically anisotropic, uniaxially oriented film of an aromatic polyethersulfone, which is useful as a phase difference plate for a liquid crystal display device. The optically isotropic film is produced by casting an aromatic polyethersulfone solution composition comprising 15 to 40 parts by weight of a solvent which contains at least 60% by weight of 1,3-dioxolane and can dissolve an aromatic polyethersulfone and 10 parts by weight of the aromatic polyethersulfone, on a substrate, and heating the cast solution composition containing a solvent to evaporate the solvent off.Type: GrantFiled: March 30, 1995Date of Patent: July 8, 1997Assignee: Teijin LimitedInventors: Takashi Shiro, Kaoru Iwata, Hideaki Nitta, Takeshi Sasaki, Utami Yonemura
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Patent number: 5611985Abstract: The present invention provides an improved solution casting method to manufacture, with high productivity, a polysulfone resin film superior in quality including appearance, surface smoothness, transparency and thickness accuracy. A polysulfone resin film is cast using the solution casting method in which a solution of polysulfone resin is cast on a support base to a desired thickness, dried to remove the solvent, and resultant resin film is peeled away from the support piece. The solution of polysulfone resin comprises at least one solvent chosen from among anisole, dioxane or tetrahydropyrane. To shorten the drying time even further, at least one solvent chosen from among acetone, methylethylketone, ethyl acetate, toluene and phenol can be mixed in the casting solution of polysulfone resin. The resultant polysulfone film obtained can be uniaxially stretched to produce a high-quality retardation film with superior optical properties.Type: GrantFiled: May 24, 1995Date of Patent: March 18, 1997Assignee: Sekisui Chemical Co., Ltd.Inventors: Hitoshi Kobayashi, Takao Saito
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Patent number: 5610220Abstract: The invention relates to powdery cross-linked polymers (superabsorbers) capable of absorbing aqueous liquids and blood, which are formed of 55-99.9%-wt. polymerized unsaturated, polymerizable acid-groups-comprising monomers which are neutralized to the extent of at least 25 mol-%, b) 0-40%-wt. polymerized unsaturated monomers copolymerizable with a), c) 0.1-5.0%-wt. of a cross-linking agent, d) 0-30%-wt. of a water-soluble polymer, whereby the weight amounts of a) to d) relate to anhydrous polymers, characterized in that 100 parts of the particle-shaped polymers have been mixed with an aqueous solution consisting of a maximum of 10 parts of an at least 10% phosphoric acid and a) 0.05-0.3 parts of a compound capable of reacting with at least two carboxyl groups and not comprising an alkali-salt-forming group in the molecule, and/or b) 0.Type: GrantFiled: June 30, 1995Date of Patent: March 11, 1997Assignee: Chemische Fabrik Stockhausen GmbHInventors: Helmut Klimmek, Helmut Brehm
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Patent number: 5607989Abstract: Disclosed is a piperidinyl phosphite composition consisting of a piperidinyl phosphite compound and an additive having a melting point of greater than 155.degree. C. selected from the group consisting of (i) sorbitol compounds, (ii) phosphite compounds and (iii) sterically hindered phenolic compounds, and polyolefin compositions containing them.Type: GrantFiled: January 17, 1995Date of Patent: March 4, 1997Assignee: Montell North America Inc.Inventors: Clyde E. Bishop, Vu A. Dang, Joseph Metrick
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Patent number: 5561180Abstract: The present invention is to provide polycarbonate film excellent in optical properties such as high transparency and a process for producing it. The present invention relates to polycarbonate film having a specific retardation values, and a process for producing polycarbonate film by casting a dope onto a support and evaporating the solvent with heat wherein the dope is prepared by dissolving 10 parts by weight of polycarbonate resin in 30 to 150 parts by weight of the solvent mixture which contains more than 60% by weight of dioxolane.Type: GrantFiled: May 16, 1995Date of Patent: October 1, 1996Assignee: Teijin LimitedInventors: Yutaka Taketani, Kaoru Iwata, Hideaki Nitta, Utami Yonemura, Takeshi Sasaki
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Patent number: 5514739Abstract: An improved synthetic resin composition is provided that consists essentially of 100 parts by weight of a resin component composed of 50 to 99 (preferably 50 to 90) parts by weight of a melt-processable polyester that does not form an anisotropic melt phase and 1 to 50 (preferably 10 to 50) parts by weight of a liquid crystal polyester that is capable of forming an anisotropic melt phase, to which has been added 0.01 to 0.5 part by weight of a phosphorus compound. The presence of the phosphorus compound has been found to facilitate the fibrillation of the liquid crystal polyester component during molding so as to form fibrils within the resulting molded article having an aspect ratio of 6 or more. The resulting molded article accordingly exhibits significantly enhanced mechanical properties.Type: GrantFiled: November 9, 1994Date of Patent: May 7, 1996Assignee: Polyplastics Co., Ltd.Inventors: Tomoyuki Aketa, Takayuki Ishikawa
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Patent number: 5482984Abstract: A composition comprising a) a thermosetting, thermoplastic or structurally crosslinked polymer and b) a charge transfer complex of formula I in the form of a network of crystal needles in the polymer matrix[A].sup..crclbar. .multidot.B.sup..sym. (I),whereinA is a compound of formula II or a mixture of compounds of formula II ##STR1## wherein the R substituents are identical and are H or C.sub.1 -C.sub.4 alkyl, or the adjacent R substituents, taken together, are --(CH.sub.2).sub.3 -- or --(CH.sub.2).sub.4 --; R.sub.1 is H or C.sub.1 -C.sub.4 alkyl; and X.sub.1 is .dbd.N--CN, and X.sub.2, X.sub.3 and X.sub.4 are each independently of one another .dbd.O or .dbd.N--CN, and B is a compound of formula III or IIIa ##STR2## wherein R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are each independently of one another H, linear or branched C.sub.1 -C.sub.18 alkyl-(Z.sub.1).sub.n --, phenyl-(Z.sub.1).sub.n -- or benzyl-(Z.sub.1).sub.n -- which are unsubstituted or substitute by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.Type: GrantFiled: September 22, 1994Date of Patent: January 9, 1996Assignee: Ciba-Geigy CorporationInventor: Peter Chetcuti
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Patent number: 5478518Abstract: The present invention is to provide a polycarbonate film excellent in optical properties such as high transparency and a process for producing it. The present invention relates to a polycarbonate film having a specific retardation value, and a process for producing a polycarbonate film by casting a dope onto a support and evaporating the solvent with heat wherein the dope is prepared by dissolving 10 parts by weight of polycarbonate resin in 30 to 150 parts by weight of the solvent mixture which contains more than 60% by weight of dioxolane.Type: GrantFiled: March 18, 1994Date of Patent: December 26, 1995Assignee: Teijin LimitedInventors: Yutaka Taketani, Kaoru Iwata, Hideaki Nitta, Utami Yonemura, Takeshi Sasaki
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Patent number: 5470898Abstract: Disclosed are certain 1,3-2,4-di(substituted arylidene)- and 1,3-2,4-di(substituted heteroarylidene)-D-sorbitols which are useful as clarifying and nucleating additives for crystalline and semi-crystalline polyolefin compositions. Also disclosed are such poly(C.sub.1 -C.sub.8 alpha olefin) compositions containing them.Type: GrantFiled: May 13, 1994Date of Patent: November 28, 1995Assignee: Montell North America Inc.Inventor: Abuzar Syed
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Patent number: 5468791Abstract: An improved solvent borne primer composition containing as the binder a polyester, polyester urethane or an epoxy polyester and a monomeric or polymeric alkylated melamine formaldehyde crosslinking agent and containing pigments in a pigment to binder weight ratio of about 10/100 to 200/100; where the improvement is the use of about 0.1-10% by weight, based on the weight of the binder, of a zircoaluminate coupling agent of the formula ##STR1## where R is an organo functional group; wherein the primer provides excellent adhesion to waterborne basecoats that are applied over the primer.Type: GrantFiled: November 17, 1994Date of Patent: November 21, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventor: San C. Yuan