Patents Represented by Attorney Neal T. Levin
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Patent number: 4177173Abstract: More rapid curing of polyepoxide resins is achieved by use of a curing system composed of at least one polymercaptan, at least one catalyst which is a poly[(N,N-dimethylamino)alkyl]ether and/or organic non-quaternized salts thereof derived from organic compounds having at least one acidic group and having a pKa greater than about 3.5 and, optionally, organic sulfide, tertiary phosphine or a tertiary amine having no bridged atoms, having no ether oxygen and having at least one tertiary amine group.Type: GrantFiled: December 20, 1978Date of Patent: December 4, 1979Assignee: Diamond Shamrock CorporationInventor: Brian J. Carr
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Patent number: 4172076Abstract: Steroidal acids of the formula ##STR1## are prepared from steroidal ketones of the formula ##STR2## wherein R.sub.1 is hydrogen; hydroxy; lower alkyloxy; tetrahydropyranyloxy; aryloxy; alkyl; alkanoyloxy or aroyloxy; R.sub.2 is hydrogen; hydroxy; lower alkyloxy; tetrahydropyranyloxy; aryloxy; alkyl; alkanoyloxy or aroyloxy; R.sub.3 is hydrogen; hydroxy; lower alkyloxy; tetrahydropyranyloxy; aryloxy; alkyl; alkanoyloxy or aroyloxy; with the proviso that R.sub.1 and R.sub.2 together or R.sub.2 and R.sub.3 together may form a carbon-carbon bond; R.sub.4 is --(CH.sub.2).sub.n CO(CH.sub.2).sub.m CH.sub.3 ; R.sub.5 is --(CH.sub.2).sub.n+m+1 COOH; R.sub.Type: GrantFiled: February 13, 1978Date of Patent: October 23, 1979Assignee: Diamond Shamrock CorporationInventors: Arnold L. Hirsch, Josef Pikl
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Patent number: 4164426Abstract: Addition of zinc naphthaleneformaldehyde sulfonate to concrete mix improves compressive strength. This sulfonate is effective in concrete mixes prepared with Type I, II and III cements.Type: GrantFiled: July 17, 1978Date of Patent: August 14, 1979Assignee: Diamond Shamrock CorporationInventors: Joseph V. Sinka, Jose L. Villa
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Patent number: 4140709Abstract: 6-Hydroxyhexyl perfluoroisopropyl ether is prepared by reaction of hexafluoroacetone and potassium fluoride to obtain an alcoholate which is then reacted with 1-chloro-6-hexanol. One mole of the ether may be reacted with about 1 mole to about 20 moles of ethylene oxide to produce a hydroxyethyl ether. One mole of 2,2,3,4,4,4-hexafluorobutanol may be reacted with from about 1 to about 5 moles of propylene oxide to produce a hydroxypropyl ether. One mole of hexafluorobutanol may also be reacted with about 1 to about 5 moles of propylene oxide and then about 1 mole to about 20 moles of ethylene oxide to produce a hydroxyethyl ether. The hydroxyhexyl ether, hydroxylpropyl ether and both hydroxyethyl ethers may be sulfated to produce anionic surfactants which are useful as antistatic agents and lubricants for polymeric shapes such as nylon films and filaments.Type: GrantFiled: March 21, 1975Date of Patent: February 20, 1979Assignee: Diamond Shamrock CorporationInventor: Alex J. Szur
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Patent number: 4128398Abstract: A processing aid is used to improve worsted and woolen processes. In the worsted process, pretreatment of wool tops with the processing aid prior to dyeing preserves fiber strength and softness. In the woolen process, addition of the processing aid to the carbonizing bath permits reduction in sulfuric acid concentration, enhances destruction of vegetable matter, and produces whiter, cleaner fiber and preserves fiber strength. If desired, the processing aid may also be introduced in the final rinse after wool scouring in either worsted or woolen processes. The preferred processing agent is epoxidized chain extended polyamide.Type: GrantFiled: February 9, 1976Date of Patent: December 5, 1978Assignee: Diamond Shamrock CorporationInventor: Mel Alpert
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Patent number: 4123383Abstract: Shelf life of silica based defoamer composition is improved by adding oil soluble resins and optionally aliphatic fatty acids to retard separation and to inhibit settling. The composition is useful in preventing foaming or in defoaming aqueous systems such as water based protective coatings, adhesives, black liquors and monomer stripping.Type: GrantFiled: September 19, 1977Date of Patent: October 31, 1978Assignee: Diamond Shamrock CorporationInventor: Frederick J. Ihde, Jr.
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Patent number: 4093775Abstract: 6-Hydroxyhexyl perfluoroisopropyl ether is prepared by reaction of hexafluoroacetone and potassium fluoride to obtain an alcoholate which is then reacted with 1-chloro-6-hexanol. One mole of the ether may be reacted with about 1 mole to about 20 moles of ethylene oxide. One mole of 2,2,3,4,4,4-hexafluorobutanol may also be reacted with about 1 mole to about 6 moles of propylene oxide and then about 1 mole to about 20 moles of ethylene oxide. Both ethoxylates are nonionic surfactants which are useful as antistatic agents and lubricants for polymeric shapes such as nylon films and filaments.Type: GrantFiled: April 27, 1976Date of Patent: June 6, 1978Assignee: Diamond Shamrock CorporationInventor: Alex J. Szur
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Patent number: 4074968Abstract: Sulfonated resins useful as retanning and fatliquoring agents are obtained by sulfonation of a condensation product of (a) one mole of a hydroxy aromatic component, (b) from about 0.05 to 1.5 mole of an unsaturated oil and (c) about 0.4 to about 1.0 mole of a formaldehyde liberating composition. The hydroxy aromatic component may be phenol, a lower alkyl phenol having at least one reactive hydrogen in the 2-,4- or 6-position on the aromatic ring or a mixture thereof. The unsaturated oil may be castor oil or moellon. The formaldehyde liberating composition may be formaldehyde or a composition capable of producing formaldehyde.Type: GrantFiled: April 15, 1976Date of Patent: February 21, 1978Assignee: Diamond Shamrock CorporationInventors: Stanley A. Lipowski, Joseph W. Dehn, Jr., Clinton E. Retzsch
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Patent number: 4066791Abstract: Sufficient powdered milk and food grade acid are mixed together to obtain an acidified powdered milk mixture which can be reconstituted with water or milk to obtain an acidified reconstituted milk having a pH of from about 4.95 to about 5.3. The mixture may be produced with solid or liquid food grade acids. Acidified reconstituted milk prepared from the mixture does not contain precipitated casein, is not denatured and is suitable for use in cheesemaking.Type: GrantFiled: August 4, 1976Date of Patent: January 3, 1978Assignee: Diamond Shamrock CorporationInventor: Edgar A. Corbin, Jr.
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Patent number: 4053643Abstract: Curd yield in cheesemaking is improved by forming a whey protein-condensed phosphate complex which remains in the curd when whey is separated. The complex is formed by adding a condensed phosphate to milk before or after acidification. Useful phosphates include sodium polyphosphate and potassium polymetaphosphate.Type: GrantFiled: August 4, 1976Date of Patent: October 11, 1977Assignee: Diamond Shamrock CorporationInventor: Edgar A. Corbin, Jr.
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Patent number: 4049668Abstract: Cationic fluorochemical surfactants useful as antistatic agents and lubricants for polymeric shapes are prepared from 2,2,3,4,4,4-hexafluorobutanol or perfluorobutyric acid. Hexafluorobutanol is reacted with bromoundecanoic acid to obtain a bromoester which is then reacted with pyridine to obtain a cationic surfactant. Perfluorobutyric acid is esterified with methanol to obtain methyl perfluorobutyrate which is then reacted with dimethylaminopropylamine to obtain an amino-amide which is then reacted with hydrogen peroxide to obtain the N-oxide derivative which is neutralized with glycolic acid to obtain a cationic surfactant, a salt of the N-oxide derivative.Type: GrantFiled: March 21, 1975Date of Patent: September 20, 1977Assignee: Diamond Shamrock CorporationInventor: Alex J. Szur
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Patent number: 4033922Abstract: Synthetic sizes for use on yarns in water jet looms are prepared by copolymerizing methacrylic acid with from about 3% by weight to about 15% by weight of acrylic acid or vinylethoxytetraethylene glycol as the comonomer. These sizes are useful as nylon warp sizes in water jet looms. They have the desired adhesion to nylon and water resistance plus non-adhesion to steel parts on the loom.Type: GrantFiled: March 30, 1976Date of Patent: July 5, 1977Assignee: Diamond Shamrock CorporationInventors: Joseph J. Baron, Jr., Sherman Krefting
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Patent number: 3992251Abstract: Cationic extended terminated polyamide resins are prepared which exhibit highly desirable paper wet strength properties.Type: GrantFiled: September 25, 1975Date of Patent: November 16, 1976Assignee: Diamond Shamrock CorporationInventor: Stanley A. Lipowski
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Patent number: 3981837Abstract: Large particle size synthetic latexes are produced by incorporating novel emulsifiers into the polymerization recipes. These bio-degradable emulsifiers are salts of partially mono-sulfonated mono-alkyl benzenes.Type: GrantFiled: March 22, 1974Date of Patent: September 21, 1976Assignee: Diamond Shamrock CorporationInventors: John G. Papalos, James S. Lee
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Patent number: 3980715Abstract: 6-Hydroxyhexyl perfluoroisopropyl ether is prepared by reaction of hexafluoroacetone and potassium fluoride to obtain an alcoholate which is then reacted with 1-chloro-6-hexanol. One mole of the ether may be reacted with about 1 mole to about 20 moles of ethylene oxide. One mole of 2,2,3,4,4,4-hexafluorobutanol may also be reacted with about 1 mole to about 6 moles of propylene oxide and then about 1 mole to about 20 moles of ethylene oxide. Both ethoxylates are nonionic surfactants which are useful as antistatic agents and lubricants for polymeric shapes such as nylon films and filaments.Type: GrantFiled: March 21, 1975Date of Patent: September 14, 1976Assignee: Diamond Shamrock CorporationInventor: Alex J. Szur
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Patent number: 3974277Abstract: 2-[2(5-Nitro-2-furyl)vinyl]-4-(anilino)quinazolines and 2-[2-(5-nitro-2-furyl)vinyl]-4-(hydroxyanilino)quinazolines are prepared and used as pesticides and animal growth promotants. These quinazolines also improve the feed efficiency of animals.Type: GrantFiled: April 23, 1975Date of Patent: August 10, 1976Assignee: Diamond Shamrock CorporationInventors: Herman Horn, Sheldon B. Greenbaum, Charles M. Ely, Walter Hacke, David A. Olle
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Patent number: 3974321Abstract: Synthetic sizes for use on yarns in water jet looms are prepared by copolymerizing methacrylic acid with from about 3% by weight to about 15% by weight of acrylic acid or vinylethoxytetraethylene glycol as the comonomer. These sizes are useful as nylon warp sizes in water jet looms. They have the desired adhesion to nylon and water resistance plus nonadhesion to steel parts on the loom.Type: GrantFiled: June 20, 1974Date of Patent: August 10, 1976Assignee: Diamond Shamrock CorporationInventors: Joseph J. Baron, Jr., Sherman Krefting
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Patent number: 3973021Abstract: 2-[2-(Nitro-2-furyl)vinyl]-4-(anilino)quinazolines and 2-[2-(5-nitro-2-furyl)vinyl]-4-(hydroxyanilino)quinazolines are prepared and used as pesticides and animal growth promotants. These quinazolines also improve the feed efficiency of animals.Type: GrantFiled: April 14, 1975Date of Patent: August 3, 1976Assignee: Diamond Shamrock CorporationInventors: Herman Horn, Sheldon B. Greenbaum, Charles M. Ely, Walter Hacke, David A. Olle
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Patent number: 3970648Abstract: 2-[2-(5-Nitro-2-furyl)vinyl]-4-(anilino)quinazolines and 2-[2-(5-nitro-2-furyl)vinyl]-4-(hydroxyanilino)quinazolines are prepared and used as pesticides and animal growth promotants. These quinazolines also improve the feed efficiency of animals.Type: GrantFiled: September 6, 1974Date of Patent: July 20, 1976Assignee: Diamond Shamrock CorporationInventors: Herman Horn, Sheldon B. Greenbaum, Charles M. Ely, Walter Hacke, David A. Olle
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Patent number: 3970620Abstract: Polyvinylchloride foam compositions are prepared by frothing. To prepare the compositions for frothing, the silicone surfactant frothing agents present are extended with oleophilic frothing aids which do not significantly detract from the hydrophobic and flame retardant properties of the foam. Further, the frothing aids may be used to control froth viscosity. From about 5.0 phr to about 10.0 phr of a frothing aid is added to about 2.0 phr to about 4.0 phr of the frothing agent present in the composition. Simple and complex organic phosphate and phosphite esters; organic nirogen compounds such as amines, aminoamides, alkanolamides, imidazolines, quaternaries, and nirogen-sulfur compounds; simple and complex organic borate esters such as 2-ethyl-hexyl borate, trihexylene glycol biborate, and tricresyl borate are useful as frothing aids.Type: GrantFiled: June 24, 1975Date of Patent: July 20, 1976Assignee: Diamond Shamrock CorporationInventor: Frederick J. Ihde, Jr.