Five-membered Chalcogen Ring Patents (Class 524/111)
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Patent number: 6054514Abstract: A corrosion inhibiting paint composition comprises from about 1 to 20 parts by weight of a corrosion inhibiting additive mixture comprising 1 to 25 parts by weight of an organic sulfonic acid in a mixture of 75 to 99 parts by weight of butyrolactone; from about 10 to 99 parts by weight of film forming polymer; and from about 0 to 89 parts by weight of a liquid medium selected from the group consisting of water, organic solvents for the film forming polymer and mixtures thereof. Another corrosion inhibiting paint composition comprises from about 1 to 20 parts by weight of a corrosion inhibiting additive mixture comprising 1 to 25 parts by weight of an organic sulfonic acid in a mixture of 75 to 99 parts by weight of butyrolactone; from about 10 to 98.5 parts by weight of film forming polymer; from about 0.Type: GrantFiled: May 19, 1998Date of Patent: April 25, 2000Assignee: Americhem, Inc.Inventor: Vaman G. Kulkarni
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Patent number: 6051636Abstract: A capillary electrophoresis system and method of electrokinetically loading a capillary electrophoresis sample into a separation medium in a capillary tube in which an entangled polymer matrix is formed having the sample embedded therein. The matrix has a mesh size effective to retard movement of macromolecules such as DNA sequencing templates through the matrix when an electric field is applied across the matrix. The entangled polymer matrix is formed by a linear polymer having a molecular weight of at least 20K Daltons. Furthermore, the invention includes stable denaturants useful for the electrophoresis of nucleic acids.Type: GrantFiled: March 9, 1999Date of Patent: April 18, 2000Assignee: The Perkin-Elmer CorporationInventors: Ben F. Johnson, Steven M. Menchen, Will Bloch
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Patent number: 6040367Abstract: 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: July 29, 1998Date of Patent: March 21, 2000Assignee: Mitsubishi Engineering-Plastics CorporationInventors: Shinya Miya, Satoshi Kanayama
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Patent number: 6031031Abstract: A thermoplastic molding composition comprisesA) from 1 to 97% by weight of a thermoplastic polyesterB) from 1 to 97% by weight of a polycarbonateC) from 1 to 40% by weight of an elastomer containing oxazoline groups and having a glass transition temperature (T.sub.g).ltoreq.0.degree. C.D) from 0.05 to 5% by weight of a bisoxazolineE) from 0 to 70% by weight of other additives and processing aids,where the total of the percentages by weight of components A) to E) is 100%.Type: GrantFiled: September 3, 1998Date of Patent: February 29, 2000Assignee: BASF AktiengesellschaftInventors: Martin Weber, Rolf Mulhaupt
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Patent number: 6025075Abstract: A thermoplastic resin containing a flame-retarding magnesium hydroxide has its workability enhanced by a sorbitan ester in admixture with the resin and flame retardant. An admixture of the resin, magnesium hydroxide, and ester may be either a mixture of discrete particles of each of said components of the composition or a mixture of the resin and a magnesium hydroxide powder whose particles have a coating of the ester.Type: GrantFiled: June 23, 1997Date of Patent: February 15, 2000Assignee: Morton International, Inc.Inventors: Lawrence P. Grant, Susan Crooks
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Patent number: 6011086Abstract: A thermoplastic resin containing a flame-retarding magnesium hydroxide has its workability enhanced by a sorbitan ester in admixture with the resin and flame retardant. An admixture of the resin, magnesium hydroxide, and ester may be either a mixture of discrete particles of each of said components of the composition or a mixture of the resin and a magnesium hydroxide powder whose particles have a coating of the ester.Type: GrantFiled: March 27, 1997Date of Patent: January 4, 2000Assignee: Morton International, Inc.Inventors: Lawrence P. Grant, Susan Crooks, Robert P. Edmonston
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Patent number: 6005085Abstract: The present invention provides novel condensed azo compounds using bisamide compounds of 2-hydroxynaphthalene-3,6-dicarboxylic acid, amide, or ester as the couplers, which have excellent properties such as excellent water resistance, chemical resistance, solvent resistance, and heat resistance.Type: GrantFiled: November 18, 1998Date of Patent: December 21, 1999Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo KenkyujoInventors: Ryuzo Ueno, Masaya Kitayama, Kenji Minami, Hiroyuki Wakamori, Katsunori Tanikawa
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Patent number: 5994432Abstract: Storage-stable/clear solutions of linear aromatic poly(imideamides), well adopted for forming high luminance films and varnishes, comprise (a) an anhydrous .gamma.-butyrolactone solvent phase, such .gamma.-butyrolactone solvent phase (a) having from 5% to 40% by weight of a linear aromatic poly(imideamide) (b) dissolved therein, such linear aromatic poly(imideamide) (b) comprising the copolymerizate of (i) 2,4-diisocyanatotoluene, 2,6-diisocyanatotoluene, or mixture thereof, with (ii) a tricarboxylic acid monoanhydride, e.g., trimellitic acid monoanhydride, optionally, (iii) an aromatic dicarboxylic acid, e.g., terephthalic or isophthalic acid, and (iv) a monocarboxylic acid or dicarboxylic acid monoanhydride chain limiting agent, e.g., benzoic acid or phthalic anhydride.Type: GrantFiled: July 9, 1991Date of Patent: November 30, 1999Assignee: Ciba Specialty Chemicals CorporationInventor: Philippe Michaud
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Patent number: 5985959Abstract: The present invention relates to a composition based on polymer and/or co-polymers of vinyl chloride including organotin salts and/or one or more divalent metal salts of a carboxylic acid or phenol, and one or more metal salts of the organic compounds of general formula A: ##STR1## in which R.sub.1 represents a linear or branched alkylene or alkenylene radical having up to 20 carbon atoms, an aralkylene radical having from 7 to 20 carbon atoms or an arylene or cycloalkylene radical having from 6 to 20 carbon atoms, the cycloalkylene radicals optionally containing carbon--carbon double bonds; these radicals optionally being unsubstituted or substituted for example by one or more or halogen atoms or hydroxyl groups or, for aryl or cycloalkylene radicals, by one or more methyl, ethyl or methoxy radicals, the above-mentioned radicals optionally modified by the presence in an aliphatic chain of one or more --O--, --CO-- or CO.sub.2 -chain members or N; R.sub.2 represents O,S,NR.sub.5 or NNHR.sub.5 wherein R.sub.Type: GrantFiled: February 25, 1998Date of Patent: November 16, 1999Assignee: Akcros ChemicalsInventors: Heather Blue Harvey, Malcolm Thomas John Mellor, Franciscus Jeannette Maria Leonardus Peters, Gererd Hubert Frans Schmets
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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: 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: 5955619Abstract: This invention described novel compounds of formula ##STR1## wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.Type: GrantFiled: July 23, 1998Date of Patent: September 21, 1999Inventors: Peter Nesvadba, Samuel Evans, Christoph Krohnke, Jurg Zingg
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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: 5922794Abstract: Thermoplastic resin composition are provided that comprise a thermoplastic resin or mixture thereof, a stabilizing amount of a stabilizer or mixture of stabilizers selected from the group consisting of the phenolic antioxidants, the 3-arylbenzofuranones, the hindered amine stabilizers, the ultraviolet light absorbers, the organic phosphorus compounds, the alkaline metal salts of fatty acids, the hydroxylamines, and the thiosynergists, and a stabilizing amount of a tertiary amine oxide. The compositions have improved stability against discoloration upon exposure to heating or to the combustion products of natural gas by the concomitant presence of an effective amount of a tertiary amine oxide.Type: GrantFiled: March 26, 1997Date of Patent: July 13, 1999Assignee: General Electric CompanyInventors: Vaikunth S. Prabhu, Roger W. Avakian
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Patent number: 5912286Abstract: A composition comprises a leachable organic compound distributed throughout a polymer matrix formed by reacting a fluoroepoxy compound of the formula: ##STR1## wherein x is an integer from 0 to 12, with a silicone amine curing agent of the formula: ##STR2## where n is the average degree of polymerization of the silicone amine curing agent and is 1 or greater. The leaching rate of the leachable organic compound is controlled by selecting the value of x in the fluoroepoxy compound and the value of n in the silicone amine curing agent. The composition may be used as a coating for protecting underwater substrates from fouling by marine organisms.Type: GrantFiled: August 29, 1997Date of Patent: June 15, 1999Assignee: The United States of America as represented by the Secretary of the NavyInventors: James R. Griffith, Stephen L. Snyder
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Patent number: 5883165Abstract: A description is given of a process for the production of polyolefin hollow articles, which comprises charging the polyolefin with a stabilizer combination, comprising (A) at least one compound from the group of the organic phosphites or phosphonites, and (B) at least one compound from the group of the 3-arylbenzofuranones, filling this mixture into a mold, heating this mold in an oven to above 280.degree. C., such that the stabilised polyolefin fuses, rotating the mold around at least 2 axes, the plastic spreading to the walls, and cooling the mold while still rotating, opening it and taking the resultant hollow article out.Type: GrantFiled: October 27, 1997Date of Patent: March 16, 1999Assignee: Ciba Specialty Chemicals CorporationInventors: Christoph Krohnke, Urs Leo Stadler
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Patent number: 5880188Abstract: A method for the protection of a medium by susceptible to microbial attack by the treatment of the medium with an oxaborale or a salt of an oxaborale.Type: GrantFiled: December 9, 1996Date of Patent: March 9, 1999Assignee: Zeneca LimitedInventors: Peter William Austin, Christopher Juan Kneale, Patrick Jelf Crowley, John Martin Clough
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Patent number: 5877242Abstract: A molding material comprises styrene/butadiene block copolymers obtainable by anionic polymerization and from 0.01 to 1% by weight, based on the polymer, of .alpha.-tocopherol.Type: GrantFiled: August 14, 1997Date of Patent: March 2, 1999Assignee: BASF AktiengesellschaftInventors: Norbert Niessner, Wolfgang Loth, Konrad Knoll, Norbert Guntherberg, Paul Naegele, Hubert Trauth, Jurgen Pohrt
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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: 5866643Abstract: There is provided by the present invention methods for preparing coating formulations and thermal transfer ribbons which provide images of high resolution by thermal transfer printing. The formulations contain an incompatible resin or wax component for reduced cohesiveness between the components of the thermal transfer layer. These methods employ thermoplastic resins and waxes with distinct solubility in the absence of solvent to reduce cohesion but are sufficiently compatible as to exhibit film forming properties. A method for modifying a coating formulation is also provided where an incompatible resin or wax components is added thereto.Type: GrantFiled: September 23, 1996Date of Patent: February 2, 1999Assignee: NCR CorporationInventors: Yaoping Tan, Marion E. McCreight, Shashi G. Talvalkar
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Patent number: 5852090Abstract: The antioxidants of the formulae I and II ##STR1## in which R.sub.1 is methyl or H,R.sub.2 is H or methyl,R.sub.3 is H or C.sub.1 -C.sub.4 alkyl,R.sub.4 is C.sub.1 -C.sub.5 alkyl,R.sub.5 is C.sub.1 -C.sub.5 alkyl, and the group Z is CH.sub.2 or O,are particularly suitable for stabilizing styrene (co)polymers.Type: GrantFiled: January 29, 1997Date of Patent: December 22, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Hans Rudolf Meier, Andreas Muhlebach
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Patent number: 5814692Abstract: The invention described novel compounds of formula ##STR1## wherein the general symbols are as defined in claim 1, as stabilizers for protecting organic materials, in particular polymers and lubricants, against thermal, oxidative or light-induced degradation.Type: GrantFiled: June 2, 1997Date of Patent: September 29, 1998Assignee: Ciba Specialty Chemicals CorporationInventor: Peter Nesvadba
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Patent number: 5811567Abstract: The present invention relates to a process for preparing the .alpha. crystal modification of 2,2',2"--nitrilo?triethyltris(3,3',5,5"--tetra--tert--butyl--1,1'--bipheny l--2,2'--diyl) phosphite! (abbreviated as NTTBP) of the formula ##STR1## which comprises dissolving the NTTBP in the form of its melt, its amorphous solid-phase modification or its .beta. crystal modification, hot, at 40 to 100.degree. C., in short-chain ketones having 3 to 7 carbon atoms, such as methyl ethyl ketone or, in particular, acetone, and then initiating crystallization by cooling to room temperature.Type: GrantFiled: June 16, 1997Date of Patent: September 22, 1998Inventors: Hans-Jerg Kleiner, Gerhard Pfahler
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Patent number: 5807505Abstract: The invention relates to compounds of formula I ##STR1## wherein the general symbols are as defined in claim 1, as stabilizers for protecting organic materials against thermal, oxidative or light-induced degradation.Type: GrantFiled: June 25, 1997Date of Patent: September 15, 1998Assignee: Ciba Specialty Chemicals CorporationInventors: Peter Nesvadba, Samuel Evans
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Patent number: 5744525Abstract: Vinyl chloride resins are thermally stabilized by incorporating a heterocyclic compound, as represented by Compound A, disclosed herein, which when in the radical, A=S, are thiophene derivatives, when A=--NR, are pyrrolidone derivatives, and when A=O, are tetronic derivatives.Type: GrantFiled: September 3, 1996Date of Patent: April 28, 1998Assignee: Akros ChemicalsInventors: Heather Blue Harvey, Joseph William Burley, Gerard Hub Frans Schmets
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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: 5705547Abstract: A one-part, moisture-cure urethane adhesive composition contains between 1 and 10 phr .gamma.-butyrolactone which acts as a moisture diffusion agent, thereby promoting a more rapid cure.Type: GrantFiled: October 15, 1996Date of Patent: January 6, 1998Assignee: Morton International, Inc.Inventors: James L. Richards, Larry F. Brinkman
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Patent number: 5693694Abstract: A casting solution for preparing a low to medium flux membrane. The casting solution contains 19-25% by weight polysulfone, polyethersulfone, or polyarylsulfone; 14-32% by weight a hydrophilic compatible polymer; 0.1-6% by weight an isocyanate capped polyethylene glycol urethane polymer; and 37-67% by weight an aprotic and water miscible solvent; in which the polysulfone, polyethersulfone, or polyarylsulfone has a M.W. of 10,000-100,000 daltons, the isocyanate capped polymer contains 2-5 --N.dbd.C.dbd.O groups per molecule and has a M.W. of 500-5,000 daltons, and the compatible polymer contains 2-5 --CH.sub.2 OH groups per molecule and has a M.W. of 200-1,000 daltons. Also disclosed are a method of spinning this casting solution to form a hollow fiber and the hollow fiber thus obtained.Type: GrantFiled: March 20, 1996Date of Patent: December 2, 1997Assignee: W.R. Grace & Co.-Conn.Inventors: Chaokang Chu, Joseph F. Ferraro, Ann L. Ly
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Patent number: 5684119Abstract: Directly shapeable clear solutions of polyamide imides and a method for preparing same are provided. The solutions are obtained by polycondensation in .gamma.-butyrolactone (.gamma.BL) in substantially stoichiometric proportions between toluylene diisocyanate and an aromatic acid anhydride, and by dilution in (.gamma.BL) to give a solution allowing them to be processed at a later stage. Yarns and fibers made from said solutions are also described.Type: GrantFiled: June 10, 1994Date of Patent: November 4, 1997Assignee: Rhone-Poulenc FibresInventors: Philippe Michaud, Jean Russo
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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: 5639809Abstract: The present invention provides a polarizing film having high heat resistance and a high degree of polarization and excellent optical properties by dyeing a polymer film with a novel azo compound represented by the following formula (1) or (2): ##STR1##Type: GrantFiled: June 14, 1995Date of Patent: June 17, 1997Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Yoriaki Matsuzaki, Ryu Oi, Rihoko Imai, Keisuke Takuma, Hisato Itoh
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Patent number: 5616780Abstract: The novel compounds of the formula I ##STR1## in which A is a group of the formula IIa or IIb, ##STR2## Y is oxygen, methylene, ethylidene or a >C.dbd.C(CH.sub.3).sub.2 group, Z is nitrogen, ##STR3## R.sub.1 and R.sub.2 are, for example C.sub.1 -C.sub.5 alkyl, R.sub.3 and R.sub.4 are, for example, hydrogen or methyl, and R.sub.5, R.sub.6, R.sub.7, R.sub.8, R.sub.9, R.sub.10, R.sub.11, R.sub.12, R.sub.13 and R.sub.14 are, for example, hydrogen, are suitable for stabilizing organic material against oxidative, thermal or light-induced degradation.Type: GrantFiled: January 31, 1996Date of Patent: April 1, 1997Assignee: Ciba-Geigy CorporationInventors: Rita Pitteloud, Bernard Gilg
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Patent number: 5614572Abstract: The invention relates to compounds of formula I ##STR1## wherein the general symbols are as defined in claim 1, as stabilisers for protecting organic materials against thermal, oxidative or light-induced degradation.Type: GrantFiled: September 12, 1994Date of Patent: March 25, 1997Assignee: Ciba-Geigy CorporationInventors: Peter Nesvadba, Samuel Evans
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Patent number: 5587421Abstract: A mixture containsa) water-emulsifiable polyisocyanates andb) carbonic esters or lactones as organic solvents.Type: GrantFiled: August 18, 1995Date of Patent: December 24, 1996Assignee: BASF AktiengesellschaftInventors: Peter Weyland, Reinhard Treiber, Alwin Sturm, Horst Seibert, Hans Renz, Jurgen Reichert, Karl Haberle
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Patent number: 5562794Abstract: There is now provided a solvent cement having a total of less than 80 weight percent of solvents and a thermoplastic polyurethane elastomer as at least one of the resins dissolved in the solvent. The solvent mixture contains at least a 5- or 6-membered water miscible lactone or lactam such as N-methyl-2-pyrrolidone (NMP) in an amount of 21 weight percent or less based on the weight of all the ingredients. The reduced solvent concentration assists in lowering VOC emissions while preserving the hydrostatic burst strength mechanical property required by ASTM D 2564-88.Type: GrantFiled: March 8, 1995Date of Patent: October 8, 1996Assignee: BASF CorporationInventors: Ulrich Abel, Lawrence E. James, Mark W. Waldrop
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Patent number: 5563193Abstract: There is now provided a solvent cement having a total of less than 80 weight percent of solvents and a thermoplastic polyurethane elastomer as at least one of the resins dissolved in the solvent. The solvent mixture contains at least a 5- or 6-membered water miscible lactone or lactam such as N-methyl-2-pyrrolidone (NMP) in an amount of 21 weight percent or less based on the weight of all the ingredients. The reduced solvent concentration assists in lowering VOC emissions while preserving the hydrostatic burst strength mechanical property required by ASTM D 2564-88.Type: GrantFiled: January 25, 1996Date of Patent: October 8, 1996Assignee: BASF CorporationInventors: Ulrich Abel, Lawrence E. James, Mark W. Waldrop
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Patent number: 5519076Abstract: A composition is provided comprising 100 weight parts of a halogen-containing resin (1), and 0.01 to 10, preferably 0.1 to 5 weight parts of a reaction product (2) of an overbased alkaline earth metal phenolate and/or carboxylate-carbonate complex with a polybasic carboxylic acid anhydride having not more than 10 carbon atoms. This halogen-containing resin composition is excellent in heat stability, initial color preventability, plate-out preventability and transparency.Type: GrantFiled: August 30, 1995Date of Patent: May 21, 1996Assignee: Nissan Ferro Organic Chemical Co, Ltd.Inventors: Shouji Odaira, Hisashi Ishii
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Patent number: 5512621Abstract: The alpha crystalline modification of 2,2',2"-nitrilo triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2, 2'-diyl)phosphite! is obtained by crystallizing said compound from selected solvents, preferably from a mixture of an aromatic hydrocarbon solvent and a lower alkanol.The alpha crystalline form is an effective process stabilizer for polyolefins, particularly polypropylene.Type: GrantFiled: November 12, 1993Date of Patent: April 30, 1996Assignee: Ciba-Geigy CorporationInventors: Stephen D. Pastor, Sai P. Shum, Paul A. Odorisio
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Patent number: 5486557Abstract: A composition for use as a binder for composite materials comprising a water-compatible furfuryl alcohol-formaldehyde resin and a minor amount of gamma-aminopropyltrimethoxysilane.Type: GrantFiled: August 16, 1994Date of Patent: January 23, 1996Assignee: QO Chemicals, Inc.Inventor: Denis W. Akerberg
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Patent number: 5484828Abstract: A thermoplastic polycarbonate molding composition free from organo phosphorus compounds and having an improved resistance to discoloration caused by exposure to High Intensity Discharge (HID) light and heat is disclosed. Accordingly, the molding composition contains (co)polycarbonate resin, a dimeric benzotriazole and an ester of a 3,5-di-tert-butyl-4-hydroxyhydrocinnamic acid. In a preferred embodiment, a sheet made of (co)polycarbonate resin is rendered improved resistance to discoloration by having applied to at least one of its surfaces an adherent protective film prepared from the polycarbonate composition of the invention.Type: GrantFiled: November 18, 1994Date of Patent: January 16, 1996Assignee: Bayer CorporationInventors: Kevin F. Dunay, Winfried G. Paul, Sivaram Krishnan
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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: 5439960Abstract: A woodworking adhesive composition prepared by a two stage emulsion polymerization procedure wherein the first stage comprises the step of emulsion polymerizing vinyl acetate with 0.1 to 6% by weight of a post-crosslinking monomer in the presence of polyvinyl alcohol to produce a polyvinyl alcohol stabilized copolymer having a Tg within the range of +10.degree. to +40.degree. C. and containing no pre-crosslinking monomers and the second stage comprises the step of emulsion polymerizing methyl methacrylate to produce a methyl methacrylate homo- or copolymer containing at least 75% by weight methyl methacrylate and having a Tg within the range of +50.degree. to +120.degree. C., further characterized in that the ratio of the polymer produced in the first stage to the polymer produced in the second stage is within the range of 10:1 to 10:6 and wherein the first stage polymer and second stage monomer mixture are not equilibrated prior to the second stage polymerization.Type: GrantFiled: September 2, 1994Date of Patent: August 8, 1995Assignee: National Starch and Chemical Investment Holding CorporationInventors: Paul R. Mudge, George Hespe
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Patent number: 5422415Abstract: Described are compositions protected against thermal and oxidative degradation that compriseA) a polyether polyol or mixtures of such polyols,B) at least one benzofuranone derivative of formula I, ##STR1## wherein L, G, m, R.sub.1 to R.sub.5 and R.sub.21 to R.sub.24 are as defined in claim 1,C) at least one compound from the group of the phenolic anti-oxidants, and/orD) at least one compound from the group of the amino anti-oxidants of the secondary amine type. Also polyurethane(s) (foam(s)) prepared therefrom are protected against thermal and oxidative degradation, especially against core scorching.Type: GrantFiled: February 3, 1994Date of Patent: June 6, 1995Assignee: Ciba-Geigy CorporationInventor: Peter Michaelis
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Patent number: 5405893Abstract: The gamma crystalline modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2, 2'-diyl)phosphite] is obtained by crystallizing or recrystallizing said compound from an alkanol of 4 to 8 carbon atoms.The gamma crystalline form is an effective process stabilizer for polyolefins, particularly polypropylene.Type: GrantFiled: February 18, 1994Date of Patent: April 11, 1995Assignee: Ciba-Geigy CorporationInventors: Stephen D. Pastor, Sai P. Shum, Paul A. Odorisio
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Patent number: 5405891Abstract: Novel oligomeric compounds of formula I ##STR1## wherein L is a group of formula ##STR2## wherein the oxygen atom in the group L is attached to the phosphorus atom in the structural repeating unit, and R.sub.5 or the carbon atom in 4-position of the piperidinyl ring in the group L is attached to the oxygen atom in the structural repeating unit, and the remaining symbols are as defined in claim 1, are disclosed as stabilizers for protecting organic material against oxidative, thermal or light-induced degradation.Type: GrantFiled: November 30, 1993Date of Patent: April 11, 1995Assignee: Ciba-Geigy CorporationInventor: Rita Pitteloud
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Patent number: 5384349Abstract: A block copolymer comprising about 5 weight percent to about 95 weight percent monovinylarene monomer, about 95 to about 5 weight percent butadiene, and an effective amount of a thermal stabilizing agent selected from the group consisting of ascorbic acid, citric acid, disodium citrate, and mixtures thereof is provided. A process for stabilizing conjugated diene/monovinylarene block copolymer and articles prepared from such copolymers are also provided.Type: GrantFiled: December 6, 1993Date of Patent: January 24, 1995Assignee: Phillips Petroleum CompanyInventors: William J. Trepka, Nathan E. Stacy, George A. Moczygemba
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Patent number: 5378744Abstract: 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. B.sup..sym. (I),wherein A 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 or C.sub.1 -C.sub.4 alkyl; and H.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 substituted by C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.Type: GrantFiled: January 22, 1993Date of Patent: January 3, 1995Assignee: Ciba-Geigy CorporationInventor: Peter Chetcuti
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Patent number: 5373040Abstract: The amorphous solid modification of 2,2',2"-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2, 2'-diyl)phosphite] is obtained by melting said compound and rapidly cooling the melt.The amorphous solid is an effective process stabilizer for organic materials, especially polyolefins and particularly polypropylene.Type: GrantFiled: November 12, 1993Date of Patent: December 13, 1994Assignee: Ciba-Geigy CorporationInventors: Stephen D. Pastor, Sai P. Shum
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Patent number: 5373051Abstract: A room temperature setting carbonaceous cement comprising a solid carbonaceous material, a catalyst and a liquid carbonizable component, and a boron containing or phosphorus containing material, which when treated with the catalyst will possess increased oxidation resistance at elevated temperatures.Type: GrantFiled: October 12, 1993Date of Patent: December 13, 1994Assignee: Ucar Carbon Technology CorporationInventors: Irwin C. Lewis, Terrence A. Pirro, Ronald A. Greinke, Richard I. Bretz, Dennis J. Kampe
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Patent number: 5369159Abstract: Compounds of the formula (1) ##STR1## in which R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, C.sub.1 -C.sub.25 alkyl, C.sub.7 -C.sub.9 phenylalkyl, unsubstituted or C.sub.1 -C.sub.4 alkyl-substituted phenyl, unsubstituted or C.sub.1 -C.sub.4 -alkly-substituted C.sub.5 -C.sub.8 cycloalkyl; C.sub.1 -C.sub.18 alkoxy, hydroxyl, C.sub.1 -C.sub.25 alkanoyloxy, C.sub.3 -C.sub.25 alkenoyloxy, C.sub.3 -C.sub.25 alkanoyloxy which is interrupted by oxygen, sulfur or >N--R.sub.16 ; C.sub.6 -C.sub.9 cycloalkylcarbonyloxy, benzoyloxy or C.sub.1 -C.sub.12 alkyl-substituted benzoyloxy, where R.sub.16 is hydrogen or C.sub.1 -C.sub.8 alkyl, or, furthermore, the radicals R.sub.2 and R.sub.3 or the radicals R.sub.4 and R.sub.5 together with the carbon atoms to which they are bound form a phenyl ring, R.sub.4 is additionally --(CH.sub.2).sub.n --COR.sub.11, in which n is 0, 1 or 2, R.sub.11 is hydroxyl, ##EQU1## C.sub.1 -C.sub.18 alkoxy or ##STR2## R.sub.14 and R.sub.Type: GrantFiled: May 17, 1993Date of Patent: November 29, 1994Assignee: Ciba-Geigy CorporationInventor: Peter Nesvadba