Patents Assigned to Texaco Development Corp.
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Patent number: 4148802Abstract: Covers a method of preparing an alpha-vinyloxazoline compound from the corresponding oxazoline ether compound, and more preferably covers a three step synthesis of preparing alpha-vinyloxazolines via reaction of acrylonitrile and alcohols.Type: GrantFiled: April 3, 1978Date of Patent: April 10, 1979Assignee: Texaco Development Corp.Inventors: Lewis W. Watts, Jr., Ernest L. Yeakey
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Patent number: 4148819Abstract: Covers a diisocyanate having the following structural formula: ##STR1## WHERE X IS AN AVERAGE NUMBER RANGING FROM ABOUT 6 TO 50, AND Y AND Z ARE AVERAGE NUMBERS RANGING FROM ABOUT 1 TO ABOUT 20, WITH THE SUM OF Y AND Z BEING FROM ABOUT 6 TO ABOUT 40. Also covers a method of preparing said diisocyanate.Type: GrantFiled: April 3, 1978Date of Patent: April 10, 1979Assignee: Texaco Development Corp.Inventors: Lewis W. Watts, Jr., Clifford L. Lambert, Jr., Edward T. Marquis
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Patent number: 4147857Abstract: An adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of an amine curing agent, and an effective amount of an additive comprising a polyoxyalkylenepolyamine-maleic anhydride condensation product having thioureide, ureide or thioformamide or formamide end groups.Type: GrantFiled: March 30, 1978Date of Patent: April 3, 1979Assignee: Texaco Development Corp.Inventors: Harold G. Waddill, Heinz Schulze
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Patent number: 4146701Abstract: An epoxy resin having superior resistance to thermal shock comprises a vicinal polyepoxide, a curing amount of a certain bicyclic anhydride and an effective amount of an additive comprising a polyoxyalkylenepolyamine-maleic anhydride condensation product having thioureide, ureide or thioformamide or formamide end groups.Type: GrantFiled: March 27, 1978Date of Patent: March 27, 1979Assignee: Texaco Development Corp.Inventors: Harold G. Waddill, Heinz Schulze
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Patent number: 4146560Abstract: Covers a process for preparing polyamines from the corresponding polynitriles via a pelleted cobalt-copper-chromium hydrogenation catalyst which comprises contacting a polynitrile with hydrogen in presence of said catalyst and a stabilizing agent comprising a polyamine or a hydroxyl-amine whereby catalyst pellet disintegration is inhibited by the presence of said stabilizing agent.Type: GrantFiled: November 28, 1977Date of Patent: March 27, 1979Assignee: Texaco Development Corp.Inventors: John M. Larkin, Philip H. Moss
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Patent number: 4146700Abstract: The adhesion properties of amine-cured epoxy resins are unexpectedly enhanced by addition of certain diamides of polyoxyalkylenepolyamine-urea condensates. The adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of an amine curing agent, and an effective amount of a diamide of a polyoxyalkylenepolyamine-urea condensate having a molecular weight of from 4000 to about 4500.Type: GrantFiled: March 27, 1978Date of Patent: March 27, 1979Assignee: Texaco Development Corp.Inventors: Harold G. Waddill, Heinz Schulze
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Patent number: 4143071Abstract: Covers compounds of the formula ##STR1## where R" is lower alkyl, R is hydrogen or lower alkyl and Y is selected from the group consisting of CN, CONH.sub.2, CO.sub.2 R', CONR'.sub.2 and COR' where R' independently is hydrogen, lower alkyl or aryl. Also covers a method of producing a polyurethane by utilizing said above compounds as catalysts in reacting an organic polyisocyanate with an organic polyester polyol or polyether polyol in the presence of said catalyst.Type: GrantFiled: September 6, 1977Date of Patent: March 6, 1979Assignee: Texaco Development Corp.Inventors: Edward E. McEntire, George P. Speranza
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Patent number: 4141885Abstract: The resistance to thermal shock of anhydride cured epoxy resins is improved by the addition of a bis ureide of a polyoxyalkylene polyamine additive. The heat deflection properties of the epoxy resins are not appreciably compromised by the addition of the additive. The improved epoxy resin composition comprises a vicinal polyepoxide, an effective amount of a substituted bicyclic vicinal anhydride curing agent and an effective amount of a thermal shock resistance improving additive consisting essentially of a bis ureide of a polyoxyalkylene polyamine, said additive having an average molecular weight of at least 4,000.Type: GrantFiled: June 30, 1977Date of Patent: February 27, 1979Assignee: Texaco Development Corp.Inventor: Harold G. Waddill
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Patent number: 4134916Abstract: Covers a new composition of matter comprising an acrylamide or methacrylamide monomer characterized by the following structural formula: ##STR1## where R.sub.1 is hydrogen or methyl, R.sub.2 and R.sub.3 are hydrogen or lower alkyl, R.sub.4 is a primary or secondary alkyl group or an alkaryl group, each group containing 6-25 carbon atoms, and n is an integer ranging from 2 to 30.Type: GrantFiled: February 6, 1978Date of Patent: January 16, 1979Assignee: Texaco Development Corp.Inventors: Philip H. Moss, Edward C. Y. Nieh
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Patent number: 4134854Abstract: Nonionic surface-active agents prepared by the addition of ethylene oxide to mixtures of alcohols containing from 8 to 20 carbon atoms are often solids or mixtures of solids and liquids at room temperatures. The pour points of such nonionic surfactants can be lowered without appreciably adversely affecting other properties by the sequential addition of ethylene oxide, propylene oxide and ethylene oxide to the alcohol if the initial oxyethylene block contains from 30% to 60% of the total oxyethylene groups in the molecule.Type: GrantFiled: July 7, 1975Date of Patent: January 16, 1979Assignee: Texaco Development Corp.Inventor: John G. Milligan
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Patent number: 4133803Abstract: A novel thermoplastic adhesive having a melting point between about 20.degree. C to about 180.degree. C. is disclosed which is comprised of a resinous polyamide reaction product of a polyoxypropylene polyamine selected from diamines, triamines, or mixtures thereof having an average molecular weight of about 190 to about 3,000 and an aliphatic or aromatic dicarboxylic acid, ester or anhydride. The thermoplastic adhesive of the invention is prepared by mixing and reacting the polyoxypropylene polyamine and the dicarboxylic acid, ester or anhydride at a molar ratio of from about 0.25:1 to about 4.0:1 at a temperature of from about 175.degree. to about 270.degree. C. for about 1 to about 12 hours. Other components, e.g.Type: GrantFiled: October 20, 1976Date of Patent: January 9, 1979Assignee: Texaco Development Corp.Inventor: Howard P. Klein
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Patent number: 4128525Abstract: Novel thermoplastic adhesive components, prepared from inexpensive and readily available synthetic materials, having melting points between about 20.degree. C. to about 180.degree. C. and broad ranges of hardness, flexibility and compatibility are disclosed. The novel thermoplastic compounds useful in adhesive formulations are comprised of a resinous polyamide reaction product of a polyoxypropylene polyamine having an average molecular weight of from about 190 to about 3,000 and being selected from diamines, triamines, or mixtures thereof, piperazine and an aliphatic or aromatic dicarboxylic acid, ester or anhydride having from about 4 to about 20 carbon atoms per molecule. The resinous polyamide reaction product is prepared by mixing and reacting the polyoxypropylene polyamine, piperazine, and dicarboxylic acid materials in a total amine:acid molar ratio within the range of from about 0.25:1.0 to about 4.0:1.0 at a temperature of from about 175.degree. C. to about 270.degree. C.Type: GrantFiled: February 20, 1976Date of Patent: December 5, 1978Assignee: Texaco Development Corp.Inventors: Ernest L. Yeakey, Harold G. Waddill
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Patent number: 4118422Abstract: Covers novel polyols comprising the reaction product of a 2,3-morpholinedione and a polyoxypropylene polyamine. Said polyols or alkoxylated derivatives thereof may be used in preparing polyurethane or polyisocyanurate polymers, particularly those polymers in cellular or foam form.Type: GrantFiled: September 6, 1977Date of Patent: October 3, 1978Assignee: Texaco Development Corp.Inventor: Howard P. Klein
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Patent number: 4118286Abstract: In a process for purifying and reducing the acidity of a polymethylene polyphenylpolyisocyanate mixture wherein the mixture is subjected to a distillation step, such as by passing a flowing stream of a crude polymethylene polyphenylpolyisocyanate mixture through a distillation column which has a reboiler means consisting of a thin film evaporator apparatus mounted therewith for rapidly heating the stream to about 190.degree. C. to about 250.degree. C. whereby the solvent and impurities are taken overhead, and then allowing the distillation residue of polymethylene polyphenylpolyisocyanate to cool, an improvement is disclosed which comprises maintaining the distillation residue of the polymethylene polyphenylpolyisocyanate at a temperature of about 190.degree. C. to about 250.degree. C.Type: GrantFiled: September 25, 1974Date of Patent: October 3, 1978Assignee: Texaco Development Corp.Inventors: Simon Pierce Burns, John Monte Walton
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Patent number: 4117227Abstract: An improved process is disclosed for selectively producing an N-(substituted) morpholine compound from the corresponding N-(substituted) diethanolamine compound. The improved process includes contacting the N-(substituted) diethanolamine compound with a catalytically effective amount of a silica-alumina or certain phosphorus-containing substances at temperatures of from about 190.degree. C to about 260.degree. C under a pressure sufficient to maintain the mixture substantially in liquid phase and recovering from the reaction mixture the formed N-(substituted) morpholine.According to a preferred embodiment, triethanolamine is heated in the presence of a catalytically effective amount of a silica-alumina catalyst having an aluminum content of from about 5 to about 50 wt. % at temperatures of from about 240.degree. C to about 260.degree. C in liquid phase to selectively produce the corresponding N-(hydroxyethyl)morpholine (HEM).Type: GrantFiled: June 2, 1975Date of Patent: September 26, 1978Assignee: Texaco Development Corp.Inventor: Michael E. Brennan
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Patent number: 4116938Abstract: Resistance to thermal shock of certain anhydride cured epoxy resins is unexpectedly enhanced by addition of certain polyether diureide additives. This superior resistance does not appreciably compromise heat deflection properties. The resins comprise a vicinal polyepoxide, a curing amount of a certain bicyclic anhydride and an effective amount of a polyether diureide having terminal ureido groups and a molecular weight of from about 2,000 to about 3,000.Type: GrantFiled: November 22, 1976Date of Patent: September 26, 1978Assignee: Texaco Development Corp.Inventors: Heinz Schulze, Harold G. Waddill
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Patent number: 4115446Abstract: Novel polyether polyureides useful in the manufacture of plastics, sealants, molds, foams and coatings. The novel composition comprises a mono- or di-substituted ureido-terminated polyoxyalkylene prepared by reacting a primary amine-terminated polyoxyalkylene containing material with suitable substituted ureido forming compounds at temperatures in the range from about 20.degree. C to about 150.degree. C in a molar ratio of about one molecule of ureido forming material for each terminal primary amino group.Type: GrantFiled: November 22, 1976Date of Patent: September 19, 1978Assignee: Texaco Development Corp.Inventor: Heinz Schulze
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Patent number: 4115360Abstract: The adhesion properties of amine-cured epoxy resins are unexpectedly enhanced by addition of certain amino terminated polyether ureylene additives. The adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of an amine curing agent, and an effective amount of a polyether ureylene having terminal amino groups and a molecular weight of from about 4000 to about 4500.Type: GrantFiled: November 22, 1976Date of Patent: September 19, 1978Assignee: Texaco Development Corp.Inventors: Heinz Schulze, Harold G. Waddill
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Patent number: 4115301Abstract: Novel flexible and semi-flexible polyurethane foams having good hardness properties and superior resistance to permanent set are disclosed. The novel foams are produced by reacting an organic polyisocyanate with a polyether polyol and employing as a cross-linker an effective amount of a polymethylene polyphenylamine having a functionality of from about 2.2 to about 2.7 having a specific isomeric distribution. The cross-linker is easy to handle and is compatible with urethane foam systems.Type: GrantFiled: January 6, 1977Date of Patent: September 19, 1978Assignee: Texaco Development Corp.Inventor: William Alvis Kennedy
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Patent number: 4115361Abstract: The adhesion properties of amine-cured epoxy resins are unexpectedly enhanced by addition of certain amino terminated polyether succinimide additives. The adhesively superior epoxy resin composition comprises a vicinal polyepoxide, a curing amount of an amine curing agent, and an effective amount of a polyether succinimide having terminal amino groups and a molecular weight of from about 4000 to about 4500.Type: GrantFiled: November 22, 1976Date of Patent: September 19, 1978Assignee: Texaco Development Corp.Inventors: Heinz Schulze, Harold G. Waddill