Patents Represented by Attorney David L. Mossman
  • Patent number: 5086162
    Abstract: Novel polyether amides produced by reacting at least one polyalkylene glycol diamine with at least two dicarboxylic acids or esters thereof are described. The polyethylene glycol diamine has the formula NH.sub.2 --(CH.sub.2 CH.sub.2 O).sub.x --CH.sub.2 CH.sub.2 --NH.sub.2, where x ranges from 2 to 6, and at least one of the dicarboxylic acids is an aromatic discarboxylic acid. These novel polyether amides may have the formula: ##STR1## where each R and R' are independently an alkylene or arylene moiety having from 3 to 34 carbon atoms, where at least one R or R' is an arylene moiety, and where each x and y independently have the values noted. Suitable dicarboxylic acids include adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, terephthalic acid, isophthalic acid, t-butyl isophthalic acid, and mixtures thereof. Suitable diamines include triethylene glycol diamine (JEFFAMINE.RTM. EDR-148 amine) and tetraethylene glycol diamine (JEFFAMINE.RTM. EDR-192 amine), among others.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: February 4, 1992
    Assignee: Texaco Chemical Company
    Inventors: George P. Speranza, Wei-Yang Su
  • Patent number: 5082924
    Abstract: Polyamide-esters may produce by reacting a polyethylene glycol monoamine with one or more dicarboxylic acids. Two methods may be employed: (1) the polyethylene glycol monoamine may be reacted with at least two different dicarboxylic acids simultaneously, or (2) the polyethylene glycol monoamine may be reacted with a first dicarboxylic acid in a first step to form an adduct, and then reacting the adduct with a second dicarboxylic acid to form the polyamide-esters, where the first and second dicarboxylic acids may be the same or different. Suitable dicarboxylic acids include, adipic acid; terephthalic acid; isophthalic acid; t-butyl isophthalic acid; 1,1,3-trimethyl-5-carboxy-3-(p-carboxyphenyl) indane, also known as phenylindane dicarboxylic acid (PIDA); naphthalenic dicarboxylic acid and mixtures thereof. Suitable polyethylene glycol monoamines include diethylene glycol monoamine, triethylene glycol monoamine and tetraethylene glycol monoamine.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: January 21, 1992
    Assignee: Texaco Chemical Company
    Inventors: George P. Speranza, Jiang-Jen Lin
  • Patent number: 5075506
    Abstract: A method for producing secondary amines, particularly fatty secondary amines such as ditallowamine from fatty nitriles, such as tallow nitrile over a cobalt catalyst promoted with zirconium has been discovered. The catalyst may be supported on kieselguhr or other support. The reaction gives high selectivity or secondary amine over the coproduced primary and tertiary amines. The reaction may be conducted continuously in the presence of ammonia and hydrogen. The secondary amine proportion may be increased by a second stage using the same catalyst as the first stage, but in the absence of ammonia.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: December 24, 1991
    Assignee: Texaco Chemical Company
    Inventor: Robert L. Zimmerman
  • Patent number: 5072060
    Abstract: A method for the preparation of branched primary alcohols comprises reacting a normal alkane with formaldehyde in non-aqueous media in the presence of a free radical initiator. The reaction involves the preferential addition of formaldeyhde to internal carbon atoms of the normal alkane, resulting in a branched primary alcohol containing one carbon more than the alkane reactant. The product alcohols are obtained as mixtures of positional isomers.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: December 10, 1991
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, Edward T. Marquis
  • Patent number: 5072050
    Abstract: Mono-, di- and tri-ketones of polyoxyalkylene compounds prepared by a method whereby the terminal hydroxyl groups of polyoxyalkylene compounds are oxidized to ketone groups with an alkali metal or an alkaline earth metal hypochlorite oxidant in the presence of acetic acid are disclosed. These compounds are useful for preparing surface active agents or they may be reacted with amines to provide fuel additives.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: December 10, 1991
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, Edward T. Marquis, John M. Larkin
  • Patent number: 5070141
    Abstract: Polyacrylate graft-polyols are found to be homogeneous liquids useful as dispersants in vinyl polymer polyols. The novel polyacrylate graft-polyols are made by polymerizing at least one acrylate monomer in a polyol where the resultant polyacrylate is soluble in the polyol used. The polyol may be a polyoxyalkylene polyether polyol. No copolymer or unsaturated polyol is required to make vinyl polymer polyols having high styrene/acrylonitrile ratios, good stability and improved viscosity properties when these polyacrylate graft-polyol dispersants are employed. The vinyl polymer polyols are in turn useful in reactions with polyisocyanates in the presence of suitable catalysts to make polyurethane products.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: December 3, 1991
    Assignee: ARCO Chemical Technology, Inc.
    Inventors: Robert G. Gastinger, John E. Hayes
  • Patent number: 5068444
    Abstract: A process in which a dialdehyde is reacted with a polyoxyalkylene glycol to form a dialdehyde glycol condensate which is alkoxylated with propylene oxide, butylene oxide or mixtures thereof and the resulting product is then catalytically aminated to provide, for example, a tetramine is disclosed. These compounds are useful as curing agents for epoxy resins and for reaction with isocyanates to prepare polyurea elastomers and to manufacture articles, such as automotive body panels by reaction injection molding.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: November 26, 1991
    Assignee: Texaco Chemical Company
    Inventors: Michael Cuscurida, David R. McCoy, Jiang-Jen Lin
  • Patent number: 5068366
    Abstract: A process for the preparation of isobutylene oxide and isobutyric acid from isobutylene and isobutyraldehyde, respectively, by a co-oxidation process conducted in the presence of oxygen and a cobalt salt catalyst at a temperature of about 20.degree. to about 180.degree. C. is disclosed.
    Type: Grant
    Filed: August 6, 1990
    Date of Patent: November 26, 1991
    Assignee: Texaco Chemical Company
    Inventors: John R. Sanderson, Edward T. Marquis
  • Patent number: 5066685
    Abstract: Polyol compositions suitable for use in the production of fibre-reinforced rigid polyurethane foam comprises (a) at least one amino polyol obtainable by reacting an alkylene oxide with an initiator which has a functionality greater than 2, at least one aromatic ring and at least one amino nitrogen atom and (b) at least 3% by weight, based on the total weight of (a) plus (b), of an adduct of a tertiary amine and an alkylene carbonate. These novel polyol compositions provide foam-forming formulations of suitable viscosity without the need to use a CFC blowing agent and also combine high reactivity with a broad reactivity profile.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: November 19, 1991
    Assignee: ARCO Chemical Technology, Inc.
    Inventors: Pavel Hanak, Philippe Motte, Patrice Gosset
  • Patent number: 5064571
    Abstract: Novel fatty amines, amides and salts thereof may be made from the reaction of polyoxyalkylenepolyamine residues with fatty acids and/or fatty acid esters under relatively mild reaction conditions in the absence of a catalyst. Remarkably, the residues or bottoms products from the synthesis of polyoxyalkylenepolyamines, such as triethylene glycol diamine and tetraethylene glycol diamine, also known as JEFFAMINE.RTM. EDR amines, may be reacted with the fatty acids and/or fatty acid esters to give materials useful in corrosion inhibitors, pigment wetting agents, mineral flotation and flocculation aids, asphalt emulsifiers, surfactants, detergents, petroleum additives, etc.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: November 12, 1991
    Assignee: Texaco Chemical Company
    Inventors: George P. Speranza, Carter G. Naylor, Jiang-Jen Lin
  • Patent number: 5059641
    Abstract: Very low viscosity polymer polyols having high styrene/acrylonitrile ratios and good stability may be achieved by the use of epoxy modified polyols as dispersants. The epoxy modified polyols useful as dispersants may be made by one of three methods: (1) adding the epoxy resin internally to the modified polyol, (2) capping or coupling a polyol not containing an epoxy resin with such a resin, and (3) providing the epoxy resin both internally to the polyol and as a cap or coupler. Epoxy modified polyols having a hydroxyl to epoxy ratio of about 8 or less, made by one of these techniques, are superior dispersants and provide polymer polyols having higher styrene contents, and improved stability and viscosity properties. In one aspect, the epoxy modified polyols contain a significant amount of high moleular weight polyol adducts; generally from about 5 to about 30 wt. % of materials having a GPC molecular weight of greater than 100,000; and at least greater than 80,000.
    Type: Grant
    Filed: January 10, 1990
    Date of Patent: October 22, 1991
    Assignee: ARCO Chemical Technology, Inc.
    Inventors: John E. Hayes, Robert G. Gastinger
  • Patent number: 5055637
    Abstract: Circuit boards with imbedded traces, which may form grooves or trenches are provided. The traces may be at least partially filled with a reflowable conductive material such as solder. The grooves may be selectively furnished with solder while other regions may be empty or void of solder. In assembling electronic components, with or without extended leads, such as surface mount integrated circuits or chips, to the solder core circuit boards, the leads may be placed within the regions of the grooves without solder (contact regions) and then the circuit board may be heated selectively or as a whole to reflow the solder to the bonding or contacting regions to bond the traces to the leads upon cooling. Circuit boards having surface mount devices on both sides may be formed in this manner. Further, tape automated bonded or TAB mounted devices may be directly placed into and bonded to the traces or solder core circuit boards with minimum exposure of the excised TAB leads prior to assembly.
    Type: Grant
    Filed: November 13, 1989
    Date of Patent: October 8, 1991
    Inventor: George R. Hagner
  • Patent number: 5053484
    Abstract: Novel polyether amides are produced by reacting a polyethylene glycol diamine and a first dicarboxylic acid or an ester thereof, with a polyoxyalkylene diamine of molecular weight of at least 500 and a second dicarboxylic acid or an ester thereof, where the polyethylene glycol diamine has the formula NH.sub.2 --(CH.sub.2 CH.sub.2 O).sub.x --CH.sub.2 CH.sub.2 --NH.sub.2, where x ranges from 2 to 6, and where the first and second dicarboxylic acid may be the same or different. Suitable dicarboxylic acids include adipic acid, azelaic acid, sebacic acid, dodecanedioic acid, terephthalic acid, isophthalic acid, t-butyl isophthalic acid, and mixtures thereof. Suitable polyethylene glycol diamines include triethylene glycol diamine (JEFFAMINE.RTM. EDR--148 Amine) and tetraethylene glycol diamine (JEFFAMINE.RTM. EDR--192 Amine), among others.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: October 1, 1991
    Assignee: Texaco Chemical Company
    Inventors: George P. Speranza, Wei-Yang Su, Donald H. Champion
  • Patent number: 5030710
    Abstract: Novel modified nylon-6 may be produced by using a combination of one or more dicarboxylic acids and triethylene glycol diamine and tetraethylene glycol diamine, but not a diethylene glycol diamine. A dicarboxylic acid/polyethylene glycol diamine salt may be reacted with .epsilon.-caprolactam to provide the modified nylon-6. The diamines have the formula NH.sub.2 --(CH.sub.2 CH.sub.2 O).sub.x --CH.sub.2 CH.sub.2 --NH.sub.2, where x ranges from 2 to 3. Surprisingly, the suitable diamines include triethylene glycol diamine (x=2; JEFFAMINE.RTM. EDR-148 Amine) and tetraethylene glycol diamine (x=3; JEFFAMINE.RTM. EDR-192 Amine), but not closely related bis-aminoethyl ether (x=1; BAEE). Unexpectedly, BAEE, which only differs from JEFFAMINE EDR-148 Amine by one --13 (CH.sub.2 CH.sub.2 O)--group, did not give satisfactory product--the fibers were too weak. The resulting modified nylon-6 polymers of the invention, however, including fibers therefrom, have improved water absorbancy properties and greater flexibility.
    Type: Grant
    Filed: April 10, 1990
    Date of Patent: July 9, 1991
    Assignee: Texaco Chemical Company
    Inventors: George P. Speranza, Wei-Yang Su
  • Patent number: 5027472
    Abstract: A toilet seat handle assembly which may be readily and easily repositioned on toilet seats of a large range of widths without tools is described. The assembly has two facing clamps spanned by a bolt. The bolt threads into one of the clamps, but passes through the other clamp in such a manner that it slides upon the middle of the bolt. A handle threads onto the opposite end of the bolt, such that the second clamp slides over the bolt between the first clamp and the handle. With the clamps in position on the underside of a conventional toilet seat, bridging the inner and outer margins of one side of the seat ring, the handle may be conventionally rotated to tighten the clamps to affix the assembly. Thus, the handle serves the dual purpose of the installing and removal mechanism, as well as the handle for raising and lowering the toilet seat without the need for touching the seat itself.
    Type: Grant
    Filed: May 21, 1990
    Date of Patent: July 2, 1991
    Inventor: Donald W. Goodman
  • Patent number: 5020160
    Abstract: A protective, disposable hand covering or mitt is provided having a tear line along at least a portion of the body thereof to provide controlled tearing and destruction of the glove to facilitate its removal. A mechanism such as a textured area, tab, hole, handle or the like may optionally be provided adjacent the tear line to assist in predictably tearing away the glove. The hand covering may be of plastic or paper or the like and should be of ambidextrous and somewhat oversized design, optionally with a flared cuff. Another optional feature is an inverted cuff to channel away any undesired liquid or other substance that may drip down the glove. Such hand coverings may find uses at self-service gasoline or fuel stations, in health care fields such as medicine and dentistry, in clean room manufacture, domestic cleaning and gardening and the like.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: June 4, 1991
    Inventor: Rolando M. Cano
  • Patent number: 4996294
    Abstract: A process in which an amine tetrol prepared by oxyalkylation of a propanediol with propylene oxide is catalytically aminated to provide, for example, an aminotetramine is disclosed. The aminotetramines are useful for preparing polyurea products and as curing agents for epoxy resins.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: February 26, 1991
    Assignee: Texaco Chemical Company
    Inventors: Michael Cuscurida, Wei-Yang Su, George P. Speranza
  • Patent number: 4996315
    Abstract: Novel cyclic ester-amides having the formula: ##STR1## where R is an alkyl group having from 2 to 5 carbon atoms, and x ranges from 2 to 6 by reacting a polyethylene glycol monoamine having the formula NH.sub.2 --(CH.sub.2 CH.sub.2 O).sub.x --H, where x is as above, with at least one dicarboxylic acid, where the dicarboxylic acid is selected from the group consisting of glutaric, adipic, pimelic acids and mixtures thereof. The a molar ratio of polyethylene glycol monoamine to dicarboxylic acid should be about 1:1. Catalysts may be optionally used, and may include such compounds as titanium alkoxides; and zinc, manganese and antimony salts of carboxylic acids. This method is anticipated to be a useful step in a new preparation of valuable cyclic products.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: February 26, 1991
    Assignee: Texaco Chemical Company
    Inventors: George P. Speranza, Jiang-Jen Lin
  • Patent number: 4994621
    Abstract: Aminated, alkoxylated hydroxyl-terminated polymers are made by a process involving first polymerizing one or more unsaturated hydrocarbons, such as butadiene, to form a liquid polymer. Next, the liquid polymer is provided with terminal hydroxyl groups. Then, the hydroxylated liquid polymer is alkoxylated with one or more alkylene oxides, such as ethylene oxide, propylene oxide, butylene oxide, and mixtures thereof, to provide secondary terminal hydroxyl groups. Finally, the alkoxylated liquid polymer is aminated over a transition metal oxide catalyst, such as a combination of nickel oxide/copper oxide/chromium oxide. If the alkoxylated, hydroxyl-terminated liquid polymer is terminated with primary hydroxyl groups, then the amination does not proceed well.
    Type: Grant
    Filed: April 17, 1989
    Date of Patent: February 19, 1991
    Assignee: Texaco Chemical Company
    Inventors: Ernest L. Yeakey, Robert L. Zimmerman, Michael Cuscurida
  • Patent number: 4992590
    Abstract: A process in which a polyamine initiator is oxyalkylated to form the corresponding polyamine polyoxyalkylene glycol which is then catalytically aminated to provide a polyoxyalkylenepolyamine is disclosed. These compounds are useful as curing agents for epoxy resins and for reaction with isocyanates to manufacture articles, such as automotive body panels, by reaction injection molding.
    Type: Grant
    Filed: October 2, 1989
    Date of Patent: February 12, 1991
    Assignee: Texaco Chemical Company
    Inventors: Michael Cuscurida, John M. Larkin, Kathy B. Sellstrom, Robert A. Grigsby, Jr.