Patents Represented by Attorney Edward P. Grattan
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Patent number: 4206293Abstract: This invention relates to an improved process for preparing ABS resins wherein a alkadiene rubber is grafted in aqueous emulsion with styrene and nitrile type monomers, forming a grafted rubber, extracting said grafted rubber into a monomer phase and separating said monomer-grafted rubber phase from said aqueous phase followed by mass polymerizing said grafted rubber-monomer phase to form an ABS polyblend, wherein the improvement comprises, carrying out the mass polymerization of said monomers in the presence of sufficient carbon dioxide to provide an ABS resin having a substantially white color.Type: GrantFiled: July 14, 1978Date of Patent: June 3, 1980Assignee: Monsanto CompanyInventor: Robert L. Kruse
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Patent number: 4205142Abstract: Flame retardant resin compositions are disclosed, comprising a thermoplastic condensation polymer selected from the group consisting of polyesters, polycarbonates and polyamides, a halogenated flame-retardant, and a rubber-occluded flame retardant synergist. The compositions possess superior stability in melt processing and improved flame retardancy and impact strength.Type: GrantFiled: November 2, 1977Date of Patent: May 27, 1980Assignee: Monsanto CompanyInventor: Massimo Baer
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Patent number: 4197376Abstract: Polyblends are disclosed which comprise an ABS polymer blended with a rubber-modified polymer of a monoalkenyl aromatic monomer and an unsaturated dicarboxylic acid anhydride.Type: GrantFiled: December 27, 1977Date of Patent: April 8, 1980Assignee: Monsanto CompanyInventors: Yoon C. Lee, Quirino A. Trementozzi
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Patent number: 4187260Abstract: The invention relates to an improved process for the mass polymerization of solutions comprising monoalkenyl aromatic monomers and optionally monoalkenyl nitrile monomers having a diene rubber dissolved therein wherein the improvement comprises dissolving a minor amount of an organic diperoxide compound in said solution and mass polymerizing said solution, said diperoxide initiating a higher molecular weight polymer fraction providing said polymer with a broader molecular weight distribution.Type: GrantFiled: August 23, 1976Date of Patent: February 5, 1980Assignee: Monsanto CompanyInventors: Robert L. Kruse, Gene E. DeJackome
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Patent number: 4185049Abstract: The invention relates to an improved process for the mass polymerization of solutions comprising monoalkenyl aromatic monomers and optionally monoalkenyl nitrile monomers having a diene rubber dissolved therein wherein the improvement comprises dissolving a minor amount of an aliphatic mono-olefinic compound in said solution and mass polymerizing said solution, said olefinic compound forming free radicals with said monoalkenyl aromatic monomer that are more active than said monoalkenyl aromatic free radicals in grafting said rubber provided a higher grafted rubber phase.Type: GrantFiled: July 1, 1976Date of Patent: January 22, 1980Assignee: Monsanto CompanyInventors: Robert L. Kruse, Fred M. Peng
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Patent number: 4170702Abstract: Low molecular weight polymers of 4,4'-thiobis(6-t-butyl-m-cresol) are prepared by contact with molecular oxygen in the presence of a copper salt complexed with amine. The polymer is useful as an antioxidant, e.g. for polyolefins.Type: GrantFiled: June 23, 1978Date of Patent: October 9, 1979Assignee: Monsanto CompanyInventor: Richard H. Hirsch
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Patent number: 4169922Abstract: Advantageous rigid polyurethane foam properties (e.g. compressive strength) can be improved and the proportions of polymerization catalyst and/or surfactant needed to provide a given level of such properties can be lowered by preparing such foams from compositions comprising, in addition to the conventional foam-forming reactants including polyisocyanate and polyol, from about 3% to about 10%, based on the weight of the polyol, of a plasticizer selected from essentially halogen-free phosphates and carboxylates containing at least one aryl radical, e.g. isodecyl diphenyl phosphate or butyl benzyl phthalate.Type: GrantFiled: December 27, 1977Date of Patent: October 2, 1979Assignee: Monsanto CompanyInventors: Jasper H. Brown, Albert W. Morgan, Donald S. T. Wang
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Patent number: 4154723Abstract: Organic materials normally subject to oxidative deterioration (e.g. polymers such as polyolefins) can be stabilized against such deterioration by incorporating therein a stabilizing amount of an N,N'-bis[alkylhydroxyphenyl)alkanoyloxyhydrocarbyl]oxamide.Type: GrantFiled: December 21, 1977Date of Patent: May 15, 1979Assignee: Monsanto CompanyInventors: Richard H. Hirsch, William H. Selcer
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Patent number: 4144394Abstract: Compounds of the formulas ##STR1## WHEREIN: X represents oxygen or sulfur;Z represents the residue of a hydroxyl-containing moiety;R.sub.1 and R.sub.2 in formula (1) may be the same or different and individually represent alkyl, cycloalkyl or aryl and, together with the common nitrogen atom, represent a 5 or 6-member ring containing oxygen, sulfur or nitrogen or combination thereof;Nr.sub.1 r.sub.2 in formula (2) represent a 5 or 6-member ring containing oxygen, sulfur or nitrogen or combination thereof;N represents an integer having a value of 2 or greater and is equal to the number of hydroxyl groups on the original hydroxyl-containing moiety,Are prepared by reacting a phosphorohalidate with an amine in an organic solvent containing aqueous alkali metal or ammonium hydroxide.The compounds are useful as flame retardants for natural and synthetic materials.Type: GrantFiled: December 19, 1977Date of Patent: March 13, 1979Assignee: Monsanto CompanyInventors: Albert W. Morgan, Ignatius Schumacher, William Vanderlinde
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Patent number: 4142992Abstract: New optically active bis phosphine compounds which are useful in optically active catalysts. Such catalysts are particularly useful in catalytic asymmetric hydrogenation.Type: GrantFiled: September 16, 1976Date of Patent: March 6, 1979Assignee: Monsanto CompanyInventors: William S. Knowles, Milton J. Sabacky, Billy D. Vineyard
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Patent number: 4134877Abstract: Compounds of the formula ##STR1## wherein: Z represents a radical selected from the group consisting of alkyl or aryl radicals;R.sub.1 and R.sub.2 may be the same or different and individually represent a radical selected from the group consisting of alkyl, cycloalkyl or aryl radicals; and R.sub.1 and R.sub.2 together with their common nitrogen atom represent a heterocyclic ring,Impart flame retardant properties to natural and synthetic polymers.Type: GrantFiled: May 9, 1977Date of Patent: January 16, 1979Assignee: Monsanto CompanyInventors: Albert W. Morgan, Ignatius Schumacher, William Vanderlinde
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Patent number: 4133823Abstract: Reaction products are prepared from metal oxides and salts and phosphorus compounds containing trivalent phosphorus. The reaction products are useful as flame retardants and smoke suppressants.Type: GrantFiled: September 17, 1976Date of Patent: January 9, 1979Assignee: Monsanto CompanyInventors: Samuel F. Joyce, III, Albert W. Morgan, Norman W. Touchette, William Vanderlinde
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Patent number: 4124400Abstract: Compounds of the formula ##STR1## wherein: Z represents a radical selected from the group consisting of alkyl or aryl radicals;R.sub.1 and R.sub.2 may be the same or different and individually represent a radical selected from the group consisting of alkyl, cycloalkyl or aryl radicals; andR.sub.1 and R.sub.2 together with their common nitrogen atom represent a heterocyclic ring,Impart flame retardant properties to natural and synthetic polymers.Type: GrantFiled: May 9, 1977Date of Patent: November 7, 1978Assignee: Monsanto CompanyInventors: Albert W. Morgan, Ignatius Schumacher, William Vanderlinde
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Patent number: 4124533Abstract: Process for the homogeneous catalytic hydrogenation of .beta.-substituted-.alpha.-acylamido-acrylic acids which yields, after hydrogenation, an optically active mixture. The process comprises the hydrogenation of .beta.-substituted-.alpha.-acylamido-acrylic acids in the presence of an optically active coordinated metal complex hydrogenation catalyst, in which the metal is selected from the group consisting of rhodium, iridium, ruthenium, osmium, palladium and platinum.This process is a generalized process for any asymmetric hydrogenation of .beta.-substituted-.alpha.-acylamido-acrylic acids in which one .alpha.-amino acid enantiomorph is the desired end-product. It is especially useful for the preparation of .alpha.-amino acids found in nature which possess optical activity and which have a hydrogen attached to the asymmetric center.This invention also relates to new optically active coordinated metal complex hydrogenation catalysts.Type: GrantFiled: March 17, 1975Date of Patent: November 7, 1978Assignee: Monsanto CompanyInventors: William S. Knowles, Milton J. Sabacky
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Patent number: 4119652Abstract: Process for the homogeneous catalytic hydrogenation of olefins, capable of existing as enantiomorphs upon hydrogenation of the olefinic bond, which yields on hydrogenation an optically active mixture. The process comprises the hydrogenation of the olefin in the presence of an optically active coordinated metal hydrogenation catalyst, in which the metal is selected from the group consisting of rhodium, iridium, ruthenium, osmium, palladium and platinum.This process is a generalized process for any asymmetric hydrogenation of olefins in which one optical enantiomorph is desired. It is also a generalized process for the selective hydrogenation of olefins in the presence of other reactive groups which are easily hydrogenated. It is especially useful for the preparation of natural products which possess optical activity, such as amino acids, and for products such as flavors, fragrances which may require optical activity for their utilitization.Type: GrantFiled: June 25, 1976Date of Patent: October 10, 1978Assignee: Monsanto CompanyInventors: William S. Knowles, Milton J. Sabacky
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Patent number: 4119575Abstract: Compounds represented by the structural formulae ##STR1## wherein n is an integer 0 or 1; A, B and C each independently represent hydrogen or alkyl having from 1 to 3 carbon atoms, provided that when n is 0 at least one of A, B or C cannot be hydrogen; R represents hydrogen or an alkyl having from 1 to 6 carbon atoms; D and E each independently represent hydrogen or alkyl having from 1 to 6 carbon atoms, provided that the sum of the carbon atoms in D and E does not exceed 6, provided that, in the bicyclo compounds, at least one of A, B, C, D or E must be an alkyl; m is an integer 1 through 8; F and G represent hydrogen or alkyl having from 1 to 3 carbon atoms; X represents ##STR2## WHEREIN P IS AN INTEGER 0 THROUGH 2 AND I and J each independently represent hydrogen or methyl, provided that if p is 0 then m must be greater than 2; provided that the sum of the carbon and oxygen atoms in the compound is no greater than 23, are useful as fragrances or as components in fragrance compositions.Type: GrantFiled: February 28, 1977Date of Patent: October 10, 1978Assignee: Monsanto CompanyInventors: Jordan J. Bloomfield, Dennis C. Owsley
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Patent number: 4111925Abstract: A process which comprises contacting alkyl esters of .alpha.-L-aspartyl-L-phenylalanine with an aqueous solution containing barium ions, at a reaction pH greater than 7, to form .alpha.-L-aspartyl-L-phenylalanine.Type: GrantFiled: October 14, 1977Date of Patent: September 5, 1978Assignee: Monsanto CompanyInventor: Gerald L. Bachman
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Patent number: 4111828Abstract: Stable mixtures, comprising a sucrose-based polyol, a .beta.-haloalkyl phosphate or .beta.-haloalkyl phosphonate flame retardant and a hydroxylamine catalyst are provided which are characterized by prolonged shelf life. The stable mixtures are used in the preparation of foamed urethane polymers by reaction thereof with an isocyanate. The urethane polymers are useful as flexible foam insulating material in buildings, pipe lines, storage tanks and refrigerators and as flexible foams in cushions, mattresses, carpet backings, and packaging materials.Type: GrantFiled: January 3, 1977Date of Patent: September 5, 1978Assignee: Monsanto CompanyInventor: Donald S. T. Wang
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Patent number: 4104233Abstract: Smoke and flame retardant plasticizer compositions for polymers comprising .omega.-bromoalkyl esters of saturated aliphatic dicarboxylic acids. Optionally, the composition may contain a modifier which is an oxide, hydroxide, hydrate or salt of antimony, aluminum, calcium or magnesium.Type: GrantFiled: August 2, 1976Date of Patent: August 1, 1978Assignee: Monsanto CompanyInventors: Thomas C. Mathis, Albert W. Morgan, William Vanderlinde
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Patent number: 4097534Abstract: A polymer of 4,4'-thiobis(6-tert-butyl-m-cresol) is prepared by contacting 4,4'-thiobis(6-tert-butyl-m-cresol) with oxygen in the presence of a copper salt/amine complex catalyst. The polymer is useful as an antioxidant for polyolefins.Type: GrantFiled: December 16, 1976Date of Patent: June 27, 1978Assignee: Monsanto CompanyInventor: Richard H. Hirsch