Patents Represented by Attorney Richard A. Morgan

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  • Bis(diaminopolyalkoxy)-N-alkylamines by amination of hydroxyl-containing tertiary amines
    Patent number: 4827038
    Abstract: A method for converting a bis(polyalkoxy)-N-alkylamine to a bis(diaminopolyalkoxy)-N-alkylamine has been discovered. The method comprises alkoxylating an alkylamine to a bis(polyalkoxy)-N-alkylamine. The alkylamine is selected to sterically hinder the resulting tertiary amine. The alkoxylate is then catalytically aminated according to well known procedures with a high yield of the diamine resulting.Compounds prepared by this method are of the formula:R--N--(PO.sub.x --NH.sub.2).sub.2wherein:PO is propylene oxide,x ranges from 2 to 40, andR is a sterically hindering alkyl such as isopropyl or tertiary butyl.The compounds are useful for curing epoxy thermoset resins. They are uniquely suited to reactions with polyisocyanates to prepare plastic parts, such as automobile body panels, by reaction injection molding.
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: May 2, 1989
    Assignee: Texaco Inc.
    Inventors: John M. Larkin, George P. Speranza
  • Nitrilo(tris)polyoxyalkyleneamines in a reaction injection molding process
    Patent number: 4827039
    Abstract: The invention is an amine terminated polyether of the formula:N--[(CH.sub.2 CH(CH.sub.3)O).sub.x --CH.sub.2 CH(CH.sub.3)NH.sub.2 ].sub.3of 3000 to 7000 molecular weight.The polyamines are particularly suited for reaction with isocyanates to manufacture articles such as automobile body panels by reaction injection molding (RIM).
    Type: Grant
    Filed: August 3, 1987
    Date of Patent: May 2, 1989
    Assignee: Texaco Inc.
    Inventors: John M. Larkin, Michael Cuscurida
  • Phenyl glycidyl ether modified polyoxyalkylene diamines and epoxy resin compositions therefrom
    Patent number: 4825000
    Abstract: A series of polyoxyalkylene diamines modified with phenoxy groups is disclosed. This series of diamines is of the general formula: ##STR1## wherein R.sub.1 and R.sub.2 are independently hydrogen or an alkyl of 1 to 4 carbon atoms, R.sub.3 is a alkyl of 1 to 4 carbon atoms, Ph is phenyl, x ranges from 2 to 40, y ranges from 1 to 20 and z ranges from 1 to 40.These diamines are cured with liquid epoxy resins. The cured resins demonstrated improved tensile strength and modulus, elongation and flexural strength and modulus over a commercially used curative.The diamines are also useful in RIM elastomers, in polyamides and as chain extenders in polyurethane foams.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: April 25, 1989
    Assignee: Texaco Inc.
    Inventors: John M. Larkin, Robert L. Zimmerman, Michael Cuscurida, Harold G. Waddill
  • Oxamidoamine co-curatives in epoxy thermoset adhesives
    Patent number: 4814415
    Abstract: The invention is an epoxy resin thermoset adhesive composition. The composition comprises the cured reaction product of:(A) an epoxy base resin, and(B) a curing amount of an admixture comprising:1. an oxamidoamine of the formula: ##STR1## wherein: R is the polyoxypropylene moiety of the formula:H.sub.2 NCH(CH.sub.3)CH.sub.2 --[OCH.sub.2 CH(CH.sub.3)].sub.x NH--wherein: x ranges from 2 to 40, and2. an aliphatic polyetheramine, aliphatic polyamine, aromatic amine or mixture thereof.The adhesives are cured at elevated temperature. They are noted for high peel strength and good shear strength.
    Type: Grant
    Filed: February 19, 1988
    Date of Patent: March 21, 1989
    Assignee: Texaco Chemical Company
    Inventors: Kathy B. Sellstrom, David C. Alexander
  • Process for preparing overbased calcium sulfonates
    Patent number: 4810396
    Abstract: In the preparation of an overbased calcium sulfonate, it has been found that charging calcium oxide and the total amount of water in amount of water of 20 to 25 mole % of the calcium oxide and a calcium oxide:calcium hydroxide ratio of 60:40 before carbonation improved feedstock utilization and reduced solids. Calcium hydroxide may be mixed with the calcium oxide through it takes no part in the water requirement.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: March 7, 1989
    Assignee: Texaco Inc.
    Inventors: Tze-Chi Jao, William J. Powers, III
  • Gas-liquid separation in an ebullated bed process
    Patent number: 4810359
    Abstract: In an ebullated bed process it has been found that a hydroclone effectively removes gas from recycled liquid used to ebullate the catalyst bed. When a 5 psi or greater inlet head and 5 psi pressure drop from the hydrocyclone inlet to the liquid outlet is maintained, essentially all gas is removed form the recycled liquid. Stabilized recycle pump operation is experienced and steady state achieved thereby.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: March 7, 1989
    Assignee: Texaco Inc.
    Inventor: Scott M. Sayles
  • Accelerator for curing epoxy resins comprising piperazine, triethanolamine and tris(dimethylaminomethyl)phenol
    Patent number: 4800222
    Abstract: A composition for accelerating the amine cure of epoxy resins is disclosed. The accelerating composition comprises: piperazine, tris(dimethylaminomethyl)phenol and triethanolamine.The accelerator combination is synergistic for accelerating the curing of epoxy resins in thin films or in mass. The products cured with the inventive accelerator combination demonstrated improved properties over products cured with the accelerator components individually.
    Type: Grant
    Filed: August 24, 1987
    Date of Patent: January 24, 1989
    Assignee: Texaco Inc.
    Inventor: Harold G. Waddill
  • Aqueous fluids thickened with fatty acid modified polyoxyalkylene diamines
    Patent number: 4795581
    Abstract: Aqueous fluids are thickened with fatty acid modified polyoxyalkylene diamines. The polyoxyalkylene diamines are of the formula:H.sub.2 NCH(CH.sub.3)CH.sub.2 O(CH.sub.2 CH(R)O).sub.x CH.sub.2 CH(CH.sub.3)NH.sub.2wherein:R is methyl or hydrogen andx is a number selected to give the diamine a molecular weight of 3000 to 9000.The fatty acid is a hydrophobic mono- or dicarboxylaic acid of 12 to 36 carbon atoms. The ratio of amine equivalent: acid ranges from 1:0.5 to 1:1.The aqueous fluids optionally incorporate ethylene glycol. They are useful for water/glycol based hydraulic fluids, cosmetics and surfactants.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: January 3, 1989
    Assignee: Texaco Inc.
    Inventors: Edward C. Y. Nieh, Jiang-Jen Lin, George P. Speranza
  • Hydroxy-terminated amides
    Patent number: 4791230
    Abstract: A series of hydroxy-terminated amides has been discovered. They are of the formulae:R--[NHCO(CH.sub.2).sub.z OH].sub.2andR--[NHCO(CH.sub.2 OCH.sub.2 OCH.sub.2 CH.sub.2 OH)].sub.2wherein:R is a polyoxyethylene radical of 1 to 9 mers which is optionally capped at both ends with 1 or 2 propylene oxide mers, and z is 3 or 5.The amides are water soluble and cold acetone insoluble. They are useful in flexible polyurethane foams.
    Type: Grant
    Filed: March 30, 1988
    Date of Patent: December 13, 1988
    Assignee: Texaco Chemical Company
    Inventors: Jiang-Jen Lin, George P. Speranza
  • Method of preparing overbased calcium sulfonates
    Patent number: 4780224
    Abstract: In an overbased sulfonate process calcium hydroxide is formed in situ by first adding 25% of the total water and then adding the remainder of the water uniformly to the calcium oxide over the entire hydration and carbonation time rather than incrementally. It has been found experimentally that by first adding at least 25% of the total water in a single aliquot that crystalline calcium carbon formation is suppressed.A 300 TBN product is formed with an H.sub.2 O/CaO molar ratio of 0.4 and a 3 hour hydration time. A 400 TBN product is formed with an H.sub.2 O/CaO molar ratio of 0.8 and 3 hour hydration time.Improved storage stability is achieved by eliminating crystalline calcium carbonate formation. Crystalline calcium carbonate has been related to engine wear.
    Type: Grant
    Filed: December 7, 1987
    Date of Patent: October 25, 1988
    Assignee: Texaco Inc.
    Inventor: Tze-Chi Jao
  • Aminated propoxylated 1,4-butanediol epoxy resin adducts as epoxy resin curatives
    Patent number: 4769438
    Abstract: Diamines of the formula:H.sub.2 N(CH(CH.sub.3)CH.sub.2 O).sub.x nC.sub.4 H.sub.8 OCH.sub.2 CH(CH.sub.3)NH.sub.2are modified with 5 to 50 wt % of a diglycidyl ether of bisphenol A to form a prepolymer. When reacted with an epxoy resin, these modified diamines impart improved properties to the cured resin compared with the unmodified amine. Improved rate of cure and greater thermal shock resistance were achieved.The cured resin products are useful for coatings, adhesives, encapsulations, laminates and composite fabrications.
    Type: Grant
    Filed: June 29, 1987
    Date of Patent: September 6, 1988
    Assignee: Texaco Inc.
    Inventors: Robert L. Zimmerman, Harold G. Waddill, Kathy B. Sellstrom
  • Hydrophobic epoxide modified polyoxyalkylene diamines and thickened aqueous fluids
    Patent number: 4767555
    Abstract: Aqueous fluids are thickened with epoxide modified polyoxyalkylene diamines. The polyoxyalkylene diamines are of the formula:H.sub.2 NCH(CH.sub.3)CH.sub.2 O(CH.sub.2 CH(R)O).sub.x CH.sub.2 CH(CH.sub.3)NH.sub.2wherein:R is methyl or hydrogen andx is a number selected to give the diamine a molecular weight of 3000 to 9000.The epoxide is a hydrophobic monoepoxide, diepoxide or mixture thereof.The aqueous fluid optionally incorporate ethylene glycol. They are useful for water/glycol base hydraulic fluids, cosmetics and surfactants.
    Type: Grant
    Filed: April 10, 1987
    Date of Patent: August 30, 1988
    Assignee: Texaco Inc.
    Inventor: Edward C. Y. Nieh
  • Epoxy adhesive
    Patent number: 4766186
    Abstract: The invention is an epoxy resin adhesive composition. The composition comprises:A. An epoxy resin component comprising:1. 72 to 104 pbw of a vicinal polyepoxide having an average of at least 1.8 reactive 1,2-epoxy groups per molecule,2. 8 to 16 pbw of trimethylolpropanetriacrylate3. 10 pbw of a polyoxypropylene diureide of 2000 to 3000 molecular weight; andB. A curative component comprising:1. a curing amount of triethyleneglycol diamine or tetraethyleneglycol diamine; and2. an effective cure acclerating amount of piperazine, N-aminoethylpiperazine or mixture thereof.The fast curing adhesive offers high lap shear strength and relatively high peel strength.
    Type: Grant
    Filed: September 3, 1987
    Date of Patent: August 23, 1988
    Assignee: Texaco Inc.
    Inventors: Kathy B. Sellstrom, Harold G. Waddill
  • Fluid catalytic cracking of vacuum gas oil with a refractory fluid quench
    Patent number: 4764268
    Abstract: Vacuum gas oil is catalytically cracked in the presence of a fluid zeolite catalyst in a riser reactor and then quenched before discharging into the disengaging section of a stripper vessel. The quench fluid is injected into the last 10 vol % of the riser reactor to prevent over cracking. In this manner, the amount of cracking which takes place in the disengaging vessel is reduced. The quench injection nozzles should be located at a point near the riser outlet but far enough from the outlet that the mixture in the riser and the quench fluid have come to temperature equilibrium by the time the mixture reaches the riser outlet. The quench fluid should be essentially inert to cracking, e.g. water or selected hydrocarbon fractions such as an intermediate cycle gas oil or heavy recycle naphtha.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: August 16, 1988
    Assignee: Texaco Inc.
    Inventor: Philip A. Lane
  • Recovering data from magnetic recording tape adhered after long storage
    Patent number: 4743983
    Abstract: A method has been discovered for recovering data recorded on magnetic recording tape wherein adjacent layers have become adhered after long storage times, even at recommended storage conditions. The method comprises localized heating of the tape in an amount sufficient to break hydrogen (physical) bonding between the binder and the film backing. A continuous tension is applied to the tape, while withdrawing it from the spool to break residual adhesion. The spool is turned at a rate of speed sufficient to carry away heat so that the film does not reach the heat distortion temperature.
    Type: Grant
    Filed: July 31, 1986
    Date of Patent: May 10, 1988
    Assignee: Texaco Inc.
    Inventor: Albert Hadamek
  • Long lasting detergent bar containing a polyamide or polyester polymer
    Patent number: 4735746
    Abstract: A water-soluble polyamide or polyester is prepared or melted in the presence of a surface active agent. The polyamide or polyester is present in an amount of 5 to 95 wt % with the surfactant as the major portion of the balance. The composition is molded or shaped into long lasting detergent bars.In the specified range, compositions with more surface active agent are more suitable for detergent bars. Compositions with more polymer are more suitable for toys or shaped or molded articles.
    Type: Grant
    Filed: March 23, 1987
    Date of Patent: April 5, 1988
    Assignee: Texaco Inc.
    Inventors: George P. Speranza, Terry L. Renken
  • Purification of propylene oxide by treatment with a selected base and inert salt
    Patent number: 4691035
    Abstract: Methyl formate is removed from propylene oxide by treatment with a selected base such as sodium hydroxide in water and glycerol. Selected inert salts may be added. The rate of methyl formate hydrolysis by selected bases was increased to commercially acceptable levels by addition of the glycerol. The glycerol and inert salts reduced the amount of residual water in the propylene oxide.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: September 1, 1987
    Assignee: Texaco Inc.
    Inventors: John R. Sanderson, Edward T. Marquis, William A. Smith, Kenneth P. Keating
  • Purification of propylene oxide by treatment with calcium hydroxide in glycerol or sugar water
    Patent number: 4691034
    Abstract: Methyl formate is removed from propylene oxide by treatment with aqueous calcium hydroxide slurry. Calcium hydroxide solubility is increased by adding a solubilizer selected from the group consisting of sucrose, fructose, maltose, glycerol and mixtures thereof. Methyl formate hydrolysis rate is improved by propylene oxide/water ratio control. Addition of an aldehyde scavenger improves propylene oxide purity.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: September 1, 1987
    Assignee: Texaco, Inc.
    Inventors: John R. Sanderson, William A. Smith, Edward T. Marquis, Kenneth P. Keating
  • Polymer polyols derived from novel dispersing media
    Patent number: 4683272
    Abstract: A vinyl polymer polyol is prepared by the free radical initiated polymerization of vinyl monomers in a dispersing media comprising a polyether polyol and a salt formed by reacting a polyoxyalkylene polyamine with an acid containing a polymerizable double bond.
    Type: Grant
    Filed: September 26, 1985
    Date of Patent: July 28, 1987
    Assignee: Texaco Inc.
    Inventors: Michael Cuscurida, George P. Speranza
  • Decolorizing ethanolamines with alkylene oxides
    Patent number: 4673762
    Abstract: It has been found that a small amount of alkylene oxide prevents Pt-Co color buildup in mono, di and triethanolamine. Alkylene oxide also reduces undesirable blue, aqua or straw hues which may develop.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: June 16, 1987
    Assignee: Texaco Inc.
    Inventors: James H. Paslean, Charles S. Steele