Patents by Inventor Michael E. Brennan
Michael E. Brennan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 4444918Abstract: Mixtures of aromatic polyols containing ester functionalities suitable for use in rigid foams prepared by reacting dibasic acid residues with an alkylene glycol residue, the reaction product of which is reacted with terephthalic acid residues are described. These novel polyols may be blended with conventional polyols to yield excellent rigid foams, thus serving as useful polyol extenders. These low hydroxyl number extender polyols unexpectedly have a low relative viscosity.Type: GrantFiled: November 22, 1982Date of Patent: April 24, 1984Assignee: Texaco Inc.Inventor: Michael E. Brennan
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Patent number: 4439550Abstract: Mixtures of aromatic polyols containing ester functionalities suitable for use as polyol extenders in rigid foams prepared by reacting dibasic acid residues with an alkylene glycol residue, the reaction product of which is reacted with recycled polyethylene terephthalate are described. Surprisingly, the process is non-catalytic. These novel polyols may be blended with conventional polyols to yield excellent rigid foams, thus serving as useful polyol extenders.Type: GrantFiled: November 22, 1982Date of Patent: March 27, 1984Assignee: Texaco Inc.Inventor: Michael E. Brennan
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Patent number: 4439551Abstract: Economical, open-celled packaging foams of better quality than foams from commercial aromatic polyester polyols may be prepared with a novel polyol blend. The most important component in the polyol blend is an aromatic polyester polyol made from dibasic acid waste streams and recycled polyethylene terephthalate. This type of polyol made from waste or recycled reactant streams is economical to make and serves as an inexpensive substitute for a portion of more expensive amino polyols normally used.Type: GrantFiled: March 18, 1983Date of Patent: March 27, 1984Assignee: Texaco, Inc.Inventors: Ernest L. Yeakey, Michael Cuscurida, Michael E. Brennan
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Patent number: 4439549Abstract: Mixtures of aromatic polyols containing ester functionalities suitable for use in rigid polyurethane and polyisocyanurate foams are described. The mixtures are prepared by reacting a polyethylene terephthalate (PET) residue with an alkylene oxide in the presence of a basic catalyst. These novel polyol mixtures may be blended with conventional polyols to yield rigid foams with better flammability resistance as compared with foams made from conventional polyols alone.Type: GrantFiled: November 22, 1982Date of Patent: March 27, 1984Assignee: Texaco Inc.Inventor: Michael E. Brennan
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Patent number: 4439546Abstract: Mixtures of aromatic polyols containing ester functionalities suitable for use as polyol extenders in polyurethane foams prepared by reacting dibasic acid residues with an alkylene glycol residue, the reaction product of which is reacted with recycled polyethylene terephthalate into which scrap RIM is dissolved, are described. Scrap RIM is recycled reaction injection molded polyurethane material which has been chopped or pulverized. From about 10 to 50 wt. % of the resulting modified extender polyol mixture may be scrap RIM. Surprisingly, the process is non-catalytic. These novel polyols may be blended with conventional polyols to yield excellent rigid foams, thus serving as useful polyol extenders.Type: GrantFiled: August 5, 1983Date of Patent: March 27, 1984Assignee: Texaco Inc.Inventors: Michael E. Brennan, Doris M. Rice
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Patent number: 4338443Abstract: N-(2-hydroxyethyl)piperazine is prepared by carrying out a reductive alkylation and cyclization reaction of monoethanolamine and diethanolamine in presence of a hydrogen atmosphere and a hydrogenation-dehydrogenation catalyst.Type: GrantFiled: August 15, 1980Date of Patent: July 6, 1982Assignee: Texaco Inc.Inventors: Michael E. Brennan, George P. Speranza
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Patent number: 4332595Abstract: A detergent additive represented by the formula:R--[O--CH.sub.2 --CH(CH.sub.3)].sub.y --NH--(CH.sub.2).sub.3 --NH.sub.2in which R is a hydrocarbyl radical having from 8 to 18 carbon atoms and y is about 2 to 6, and a gasoline motor fuel composition containing same.Type: GrantFiled: December 5, 1980Date of Patent: June 1, 1982Assignee: Texaco Inc.Inventors: Sheldon Herbstman, Joseph B. Biasotti, Michael E. Brennan
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Patent number: 4299957Abstract: Covers a process of making N-(2-methoxyethyl)morpholine by reacting N-(2-hydroxyethyl)morpholine with an excess of methanol in presence of a silica-alumina catalyst.Type: GrantFiled: September 17, 1980Date of Patent: November 10, 1981Assignee: Texaco Inc.Inventor: Michael E. Brennan
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Patent number: 4299956Abstract: Covers a process of making N-(2-methoxyethyl)morpholine by reacting N-(2-hydroxyethyl)morpholine with an excess of methanol in presence of a phosphorus-containing catalyst.Type: GrantFiled: September 17, 1980Date of Patent: November 10, 1981Assignee: Texaco Inc.Inventor: Michael E. Brennan
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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: 4103087Abstract: An improved process is disclosed for selectively producing a di-(N,N-disubstituted amino) alkane compound which includes contacting an (N,N-disubstituted) amino alkanol compound with an (N,N-disubstituted) amine compound in the presence of a catalytically effective amount of an aluminum phosphate catalyst at a temperature of from about 240.degree. C to 320.degree. C under a pressure sufficient to maintain the mixture substantially in liquid phase and recovering from the resultant reaction mixture the di-(N,N-disubstituted amino) alkane compound.According to a preferred embodiment, N-(2-hydroxyethyl) morpholine is contacted with morpholine in the presence of a catalytically effective amount of a heterogeneous aluminum phosphate catalyst at temperatures of from about 260.degree. C to about 300.degree. C in liquid phase to selectively produce the corresponding N,N'-dimorpholino ethane (DMORE).Type: GrantFiled: April 1, 1977Date of Patent: July 25, 1978Assignee: Texaco Development CorporationInventor: Michael E. Brennan
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Patent number: 4095022Abstract: An improved process is disclosed for selectively producing a bis-(morpholino-N-alkyl) ether directly from the corresponding N-(hydroxyalkyl)morpholine compound. The improved process includes contacting the N-(hydroxyalkyl)morpholine compound with a catalytically effective amount of a silica-alumina or certain phosphorus containing substances at a temperature of about 200.degree. C to 300.degree. C under a pressure sufficient to maintain the mixture substantially in liquid phase and recovering from the resultant reaction mixture the bis-(morpholino-N-alkyl) ether.According to the preferred embodiment, N-(2-hydroxyethyl)morpholine is heated in the presence of a catalytic amount of a silica-alumina catalyst having an alumina content of from about 5 to about 50 wt. % at temperatures of from about 240.degree. C to about 290.degree. C in liquid phase to selectively produce the corresponding N,N',2,2'-dimorpholinodiethyl ether (DMDEE).Type: GrantFiled: April 23, 1976Date of Patent: June 13, 1978Assignee: Texaco Development CorporationInventors: Michael E. Brennan, Philip H. Moss, Ernest L. Yeakey
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Patent number: 4049657Abstract: An improved process for selectively preparing an N-(aminoalkyl)piperazine compound is disclosed wherein piperazine is contacted with a primary or secondary amino alkanol compound in the presence of a catalytically effective amount of a phosphorus-containing substance at a temperature of from about 250.degree. to about 350.degree. C under a pressure sufficient to maintain the mixture essentially in liquid phase and the N-(aminoalkyl)piperazine is then recovered from the resultant reaction mixture. In a preferred embodiment piperazine is contacted with monoethanolamine to produce N-(2-aminoethyl)-piperazine.Type: GrantFiled: June 2, 1975Date of Patent: September 20, 1977Assignee: Texaco Development CorporationInventors: Michael E. Brennan, Philip H. Moss, Ernest L. Yeakey
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Patent number: 4044053Abstract: An improved process for selectively preparing a predominantly noncyclic polyalkylene polyamine compound is disclosed wherein an alkyleneamine compound is contacted with a diol compound in the presence of a catalytically effective amount of a phosphorus-containing substance at a temperature of from about 250.degree. to about 350.degree. C under a pressure sufficient to maintain the mixture essentially in liquid phase and the polyalkylene polyamine is then recovered from the resultant reaction mixture. In a preferred embodiment ethylenediamine is contacted with monoethylene diol to produce a predominantly linear polyethylene polyamine product with very low yields of heterocyclic amine materials. The desired polyethylene polyamines produced can be directly recovered from the reaction products by known purification procedures.Type: GrantFiled: May 3, 1976Date of Patent: August 23, 1977Assignee: Texaco Development CorporationInventors: Michael E. Brennan, Philip H. Moss, Ernest L. Yeakey
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Patent number: 4036881Abstract: An improved process for selectively preparing a predominantly noncyclic polyalkylene polyamine compound is disclosed wherein an alkyleneamine compound is contacted with an alkanolamine compound in the presence of a catalytically effective amount of a phosphorus-containing substance at a temperature of from about 250.degree. to about 350.degree. C under a pressure sufficient to maintain the mixture essentially in liquid phase and the polyalkylene polyamine is then recovered from the resultant reaction mixture. In a preferred embodiment ethylenediamine is contacted with monoethanolamine to produce a predominantly linear polyethylene polyamine product with very low yields of heterocyclic amine materials. The desired polyethylene polyamines produced can be directly recovered from the reaction products by known purification procedures.Type: GrantFiled: June 2, 1975Date of Patent: July 19, 1977Assignee: Texaco Development CorporationInventors: Michael E. Brennan, Ernest L. Yeakey
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Patent number: 4026935Abstract: An improved process is disclosed for selectively producing a bis-(morpholino-N-alkyl) ether directly from the corresponding N-(hydroxyalkyl)morpholine compound. The improved process includes contacting the N-(hydroxyalkyl) morpholine compound with a catalytically effective amount of a silica-alumina or certain phosphorus containing substances at a temperature of about 200.degree. C to 300.degree. C under a pressure sufficient to maintain the mixture substantially in liquid phase and recovering from the resultant reaction mixture the bis-morpholino-N-alkyl) ether.According to the preferred embodiment, N-(2-hydroxyethyl)morpholine is heated in the presence of a catalytic amount of a silica-alumina catalyst having an alumina content of from about 5 to about 50 wt. % at temperatures of from about 240.degree. C to about 280.degree. C in liquid phase to selectively produce the corresponding N,N',2,2'-dimorpholinodiethyl ether (DMDEE).Type: GrantFiled: June 2, 1975Date of Patent: May 31, 1977Assignee: Texaco Development CorporationInventors: Michael E. Brennan, Philip H. Moss, Ernest L. Yeakey
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Patent number: 3959374Abstract: A process is described for the preparation of mixed isomeric methylene-bridged polycyclohexylpolyamines wherein a mixed isomeric methylene-bridged polyphenyl polyamine mixture having a functionality of from about 2.0 to about 3.3 is pretreated by contacting the mixture and hydrogen with a nickel-containing hydrogenation catalyst at a temperature of from about 25.degree.C. to about 250.degree.C. under a pressure of about 500 to about 15,000 psig. The pretreated isomeric polyamine is then hydrogenated in the presence of ammonia under conventional hydrogenation conditions employing a ruthenium-containing hydrogenation catalyst. The pretreatment step allows the utilization of mixed isomeric methylene-bridged polyphenyl polyamine feed mixtures for the production of isomeric methylene-bridged polycyclohexylpolyamines in high yields without attendant deactivation of the ruthenium hydrogenation catalyst heretofore observed. The process is particularly applicable to continuous operation.Type: GrantFiled: May 30, 1974Date of Patent: May 25, 1976Assignee: Jefferson Chemical Company, Inc.Inventors: Michael E. Brennan, Ernest L. Yeakey
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Patent number: 3943162Abstract: An improved process is disclosed for the production of cyanoethylated aromatic amines comprising contacting an aromatic amine with acrylonitrile in the presence of a silica-alumina catalyst in a liquid phase reaction at elevated temperature. Aromatic polyamines are cyanoethylated according to the process of this invention to form a reaction product comprising poly-(N-monocyanoethylated) aromatic amines and poly-(N-monocyanoethylated) aromatic amines additionally having at least one cyanoethyl group attached to the nucleus of the aromatic ring.Type: GrantFiled: April 16, 1975Date of Patent: March 9, 1976Assignee: Jefferson Chemical Co., Inc.Inventors: Michael E. Brennan, Ernest Leon Yeakey