Abstract: A process for the preparation of .alpha.-L-aspartyl-L-phenylalanine methyl ester wherein .alpha.-L-aspartyl-L-phenylalanine is contacted with a reaction medium comprising water, methanol and a hydrogen halide to form a solid hydrogen halide salt of .alpha.-L-aspartyl-L-phenylalanine methyl ester which can be separated and converted to .alpha.-L-aspartyl-L-phenylalanine methyl ester.

Abstract: 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.

Abstract: Liquid materials which are difficult to crystallize and which may be subject to supercooling are solidified and crystallized by contacting the liquid material with an agitated, fluidized bed of solid particles of the same material. The bed of solid particles is agitated by means of a mechanical agitator and a current of fluidizing and cooling gas which enters the bottom portion of the bed vertically but is baffled toward the periphery of the bed.

Abstract: 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.

Abstract: New optically active bis phosphine compounds which are useful in optically active catalysts. Such catalysts are particularly useful in catalytic asymmetric hydrogenation.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Copolymers are prepared from .omega.-bromoalkyl esters of acyclic unsaturated dicarboxylic acids and compounds copolymerizable therewith. The copolymers are useful as flame retardant plasticizers for polymers.

Abstract: 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.

Abstract: 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.

Abstract: A composition consisting essentially of an olefin polymer and a plasticizer therefor of the formula ##STR1## wherein R represents alkyl, aryl, ##STR2## X represents halogen; and N REPRESENTS THE INTEGERS 4 OR 5.The composition is useful in plastic molding and forming processes to make articles of manufacture.

Abstract: 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) represents 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 orginal hydroxyl-containing moiety, the residue of which is now represented by Z.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.

Abstract: A smoke and flame reducing composition, for polymers, comprising Dawsonite, an oxide, hydroxide or salt of lithium, sodium, potassium, magnesium, barium, zironium, manganese or iron, a metal salt of a lower aliphatic acid, and mixtures thereof with at least one halogenated phosphorus acid, is disclosed.

Abstract: Vinyl halide polymers containing migration-resistant polyester plasticizers are used in food and drink wrapping and containers and medical tubing and in medical devices for collecting, storing and administering body fluids.