Five-membered Chalcogen Ring Patents (Class 524/111)
  • Patent number: 6054514
    Abstract: 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: Grant
    Filed: May 19, 1998
    Date of Patent: April 25, 2000
    Assignee: Americhem, Inc.
    Inventor: Vaman G. Kulkarni
  • Patent number: 6051636
    Abstract: 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: Grant
    Filed: March 9, 1999
    Date of Patent: April 18, 2000
    Assignee: The Perkin-Elmer Corporation
    Inventors: Ben F. Johnson, Steven M. Menchen, Will Bloch
  • Patent number: 6040367
    Abstract: 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: Grant
    Filed: July 29, 1998
    Date of Patent: March 21, 2000
    Assignee: Mitsubishi Engineering-Plastics Corporation
    Inventors: Shinya Miya, Satoshi Kanayama
  • Patent number: 6031031
    Abstract: 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: Grant
    Filed: September 3, 1998
    Date of Patent: February 29, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Martin Weber, Rolf Mulhaupt
  • Patent number: 6025075
    Abstract: 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: Grant
    Filed: June 23, 1997
    Date of Patent: February 15, 2000
    Assignee: Morton International, Inc.
    Inventors: Lawrence P. Grant, Susan Crooks
  • Patent number: 6011086
    Abstract: 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: Grant
    Filed: March 27, 1997
    Date of Patent: January 4, 2000
    Assignee: Morton International, Inc.
    Inventors: Lawrence P. Grant, Susan Crooks, Robert P. Edmonston
  • Patent number: 6005085
    Abstract: 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: Grant
    Filed: November 18, 1998
    Date of Patent: December 21, 1999
    Assignee: Kabushiki Kaisha Ueno Seiyaku Oyo Kenkyujo
    Inventors: Ryuzo Ueno, Masaya Kitayama, Kenji Minami, Hiroyuki Wakamori, Katsunori Tanikawa
  • Patent number: 5994432
    Abstract: 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: Grant
    Filed: July 9, 1991
    Date of Patent: November 30, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Philippe Michaud
  • Patent number: 5985959
    Abstract: 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: Grant
    Filed: February 25, 1998
    Date of Patent: November 16, 1999
    Assignee: Akcros Chemicals
    Inventors: Heather Blue Harvey, Malcolm Thomas John Mellor, Franciscus Jeannette Maria Leonardus Peters, Gererd Hubert Frans Schmets
  • Patent number: 5981636
    Abstract: 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: Grant
    Filed: December 27, 1996
    Date of Patent: November 9, 1999
    Assignee: 3M Innovative Properties Company
    Inventors: Stephen E. Amos, Kent E. Nielsen, Chantelle McRoberts, Markus A. Wicki
  • Patent number: 5959012
    Abstract: 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: Grant
    Filed: August 11, 1997
    Date of Patent: September 28, 1999
    Assignee: General Electric Company
    Inventors: Amy Kathleen Simonian, Gregory Ronald Gillette, James Edward Pickett
  • Patent number: 5955619
    Abstract: 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: Grant
    Filed: July 23, 1998
    Date of Patent: September 21, 1999
    Inventors: Peter Nesvadba, Samuel Evans, Christoph Krohnke, Jurg Zingg
  • Patent number: 5948838
    Abstract: 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: Grant
    Filed: February 25, 1997
    Date of Patent: September 7, 1999
    Assignee: Mitsubishi Engineering-Plastics Corp.
    Inventors: Shinya Miya, Satoshi Kanayama
  • Patent number: 5922794
    Abstract: 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: Grant
    Filed: March 26, 1997
    Date of Patent: July 13, 1999
    Assignee: General Electric Company
    Inventors: Vaikunth S. Prabhu, Roger W. Avakian
  • Patent number: 5912286
    Abstract: 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: Grant
    Filed: August 29, 1997
    Date of Patent: June 15, 1999
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James R. Griffith, Stephen L. Snyder
  • Patent number: 5883165
    Abstract: 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: Grant
    Filed: October 27, 1997
    Date of Patent: March 16, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Christoph Krohnke, Urs Leo Stadler
  • Patent number: 5880188
    Abstract: 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: Grant
    Filed: December 9, 1996
    Date of Patent: March 9, 1999
    Assignee: Zeneca Limited
    Inventors: Peter William Austin, Christopher Juan Kneale, Patrick Jelf Crowley, John Martin Clough
  • Patent number: 5877242
    Abstract: 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: Grant
    Filed: August 14, 1997
    Date of Patent: March 2, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Niessner, Wolfgang Loth, Konrad Knoll, Norbert Guntherberg, Paul Naegele, Hubert Trauth, Jurgen Pohrt
  • Patent number: 5869565
    Abstract: 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: Grant
    Filed: May 6, 1996
    Date of Patent: February 9, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Margot Clauss
  • Patent number: 5866643
    Abstract: 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: Grant
    Filed: September 23, 1996
    Date of Patent: February 2, 1999
    Assignee: NCR Corporation
    Inventors: Yaoping Tan, Marion E. McCreight, Shashi G. Talvalkar
  • Patent number: 5852090
    Abstract: 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: Grant
    Filed: January 29, 1997
    Date of Patent: December 22, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Hans Rudolf Meier, Andreas Muhlebach
  • Patent number: 5814692
    Abstract: 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: Grant
    Filed: June 2, 1997
    Date of Patent: September 29, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Peter Nesvadba
  • Patent number: 5811567
    Abstract: 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: Grant
    Filed: June 16, 1997
    Date of Patent: September 22, 1998
    Inventors: Hans-Jerg Kleiner, Gerhard Pfahler
  • Patent number: 5807505
    Abstract: 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: Grant
    Filed: June 25, 1997
    Date of Patent: September 15, 1998
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Peter Nesvadba, Samuel Evans
  • Patent number: 5744525
    Abstract: 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: Grant
    Filed: September 3, 1996
    Date of Patent: April 28, 1998
    Assignee: Akros Chemicals
    Inventors: Heather Blue Harvey, Joseph William Burley, Gerard Hub Frans Schmets
  • Patent number: 5726228
    Abstract: 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: Grant
    Filed: December 3, 1996
    Date of Patent: March 10, 1998
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ralf Kaufmann, Wolfgang Ebert, Hartmut Lower, Jurgen Kadelka, Claus Wulff, Gottfried Zaby
  • Patent number: 5705547
    Abstract: 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: Grant
    Filed: October 15, 1996
    Date of Patent: January 6, 1998
    Assignee: Morton International, Inc.
    Inventors: James L. Richards, Larry F. Brinkman
  • Patent number: 5693694
    Abstract: 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: Grant
    Filed: March 20, 1996
    Date of Patent: December 2, 1997
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Chaokang Chu, Joseph F. Ferraro, Ann L. Ly
  • Patent number: 5684119
    Abstract: 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: Grant
    Filed: June 10, 1994
    Date of Patent: November 4, 1997
    Assignee: Rhone-Poulenc Fibres
    Inventors: Philippe Michaud, Jean Russo
  • Patent number: 5663223
    Abstract: 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: Grant
    Filed: August 11, 1994
    Date of Patent: September 2, 1997
    Assignee: Zapata Technologies, Inc.
    Inventors: Fred N. Teumac, Mahmood R. Rassouli, Janine M. Rusnock, Anthony Irwin
  • Patent number: 5639809
    Abstract: 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: Grant
    Filed: June 14, 1995
    Date of Patent: June 17, 1997
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Yoriaki Matsuzaki, Ryu Oi, Rihoko Imai, Keisuke Takuma, Hisato Itoh
  • Patent number: 5616780
    Abstract: 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: Grant
    Filed: January 31, 1996
    Date of Patent: April 1, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Rita Pitteloud, Bernard Gilg
  • Patent number: 5614572
    Abstract: 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: Grant
    Filed: September 12, 1994
    Date of Patent: March 25, 1997
    Assignee: Ciba-Geigy Corporation
    Inventors: Peter Nesvadba, Samuel Evans
  • Patent number: 5587421
    Abstract: A mixture containsa) water-emulsifiable polyisocyanates andb) carbonic esters or lactones as organic solvents.
    Type: Grant
    Filed: August 18, 1995
    Date of Patent: December 24, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Weyland, Reinhard Treiber, Alwin Sturm, Horst Seibert, Hans Renz, Jurgen Reichert, Karl Haberle
  • Patent number: 5562794
    Abstract: 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: Grant
    Filed: March 8, 1995
    Date of Patent: October 8, 1996
    Assignee: BASF Corporation
    Inventors: Ulrich Abel, Lawrence E. James, Mark W. Waldrop
  • Patent number: 5563193
    Abstract: 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: Grant
    Filed: January 25, 1996
    Date of Patent: October 8, 1996
    Assignee: BASF Corporation
    Inventors: Ulrich Abel, Lawrence E. James, Mark W. Waldrop
  • Patent number: 5519076
    Abstract: 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: Grant
    Filed: August 30, 1995
    Date of Patent: May 21, 1996
    Assignee: Nissan Ferro Organic Chemical Co, Ltd.
    Inventors: Shouji Odaira, Hisashi Ishii
  • Patent number: 5512621
    Abstract: 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: Grant
    Filed: November 12, 1993
    Date of Patent: April 30, 1996
    Assignee: Ciba-Geigy Corporation
    Inventors: Stephen D. Pastor, Sai P. Shum, Paul A. Odorisio
  • Patent number: 5486557
    Abstract: 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: Grant
    Filed: August 16, 1994
    Date of Patent: January 23, 1996
    Assignee: QO Chemicals, Inc.
    Inventor: Denis W. Akerberg
  • Patent number: 5484828
    Abstract: 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: Grant
    Filed: November 18, 1994
    Date of Patent: January 16, 1996
    Assignee: Bayer Corporation
    Inventors: Kevin F. Dunay, Winfried G. Paul, Sivaram Krishnan
  • Patent number: 5482984
    Abstract: 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: Grant
    Filed: September 22, 1994
    Date of Patent: January 9, 1996
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Chetcuti
  • Patent number: 5439960
    Abstract: 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: Grant
    Filed: September 2, 1994
    Date of Patent: August 8, 1995
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: Paul R. Mudge, George Hespe
  • Patent number: 5422415
    Abstract: 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: Grant
    Filed: February 3, 1994
    Date of Patent: June 6, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Michaelis
  • Patent number: 5405893
    Abstract: 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: Grant
    Filed: February 18, 1994
    Date of Patent: April 11, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Stephen D. Pastor, Sai P. Shum, Paul A. Odorisio
  • Patent number: 5405891
    Abstract: 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: Grant
    Filed: November 30, 1993
    Date of Patent: April 11, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Rita Pitteloud
  • Patent number: 5384349
    Abstract: 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: Grant
    Filed: December 6, 1993
    Date of Patent: January 24, 1995
    Assignee: Phillips Petroleum Company
    Inventors: William J. Trepka, Nathan E. Stacy, George A. Moczygemba
  • Patent number: 5378744
    Abstract: 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: Grant
    Filed: January 22, 1993
    Date of Patent: January 3, 1995
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Chetcuti
  • Patent number: 5373040
    Abstract: 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: Grant
    Filed: November 12, 1993
    Date of Patent: December 13, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Stephen D. Pastor, Sai P. Shum
  • Patent number: 5373051
    Abstract: 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: Grant
    Filed: October 12, 1993
    Date of Patent: December 13, 1994
    Assignee: Ucar Carbon Technology Corporation
    Inventors: Irwin C. Lewis, Terrence A. Pirro, Ronald A. Greinke, Richard I. Bretz, Dennis J. Kampe
  • Patent number: 5369159
    Abstract: 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: Grant
    Filed: May 17, 1993
    Date of Patent: November 29, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Peter Nesvadba