Fmc Corporation

Other

Fui-Tseng H Lee

Joseph Green

Paul James Nicholson

Joseph H Finley

Charles V Juelke

Fred Richard Scholer

Harry Dounchis

Diza P Braksmayer

Janos Szamosi

William T Sommer

An herbicidal composition containing from 1 to 4 pounds of clomazone per gallon of formulation and having a clomazone volatility less than fifty percent of that of an emulsifiable concentrate containing four pounds of clomazone per gallon of formulation is prepared by the interfacial reaction of polymethylene polyphenyl isocyanate with a polyfunctional amine selected from ethylenediamine, diethylenetriamine, triethylenetetramine, 1,6-hexanediamine, and their mixtures in an aqueous phase optionally containing from 0.05 to 0.25 weight percent of a xanthan gum viscosity modified/stabilizer. Several such formulations and the method of their preparation are described.

Low volatility formulations of microencapsulated clomazone

Pesticidal formulations of cadusafos are provided. An aqueous capsule suspension is provided, containing from about 150 to about 360 grams of cadusafos per liter of formulation and having lower mammalian toxicity than aqueous cadusafos microemulsion formulations is prepared by interfacial polymerization of a first polyfunctional compound, such as a polymethylene polyphenyl isocyanate, with a second polyfunctional compound, such as a polyfunctional amine or mixtures of polyfunctional amines, in an aqueous phase optionally containing from about 0.05 to about 0.50 xanthan gum viscosity modifier/stabilizer. A granular form of the microencapsulated cadusafos is also provided. Several such formulations and the method of their preparation are described.

Microencapsulation formulations of cadusafos

1-allyl-2-hydroxyalkyl-3,4,5,6-tetrabromophthalates and flame retardant thermosetting polyester compositions containing them are described.

Flame retardant allylic esters of tetrabromophthalic acid and flame

A polyurethane elastomer product formed by curing a mixture of an NCO terminated urethane prepolymer and a polyhydroxyalkylphosphine oxide. The polyhydroxyalkyl phosphine curative is a compound of the class having the formula: ##STR1## wherein R is alkylene of 3 to 6 carbon atoms, R.sub.1 is alkyl of 2 to 10 carbon atoms, cycloalkyl of 6 to 12 carbon atoms and n is an integer of 2 to 3. Exemplary polyhydroxyalkyl phosphine curatives are (HOCH.sub.2 CH.sub.2 CH.sub.2).sub.2 P(O)--C.sub.4 H.sub.9 --sec. and (HOCH.sub.2 CH.sub.2 CH.sub.2).sub.3 P(O).

Polyurethane elastomer composition

A mixed phenyl/mesityl phosphate ester composition that is useful as a fire retardant additive, having a phosphorus content of from about 8.2% to about 8.4% is prepared by reacting with agitation at about 120.degree. C. to 130.degree. C. distilled still bottom phenols with phosphorus oxychloride in the presence of a Friedel-Crafts catalyst to form a reaction product containing a substantial quantity of monoaryl phosphodichloridate and diaryl phosphochloridate. This reaction product is then further reacted at an elevated temperature with sufficient phenol to form a triaryl phosphate ester mixture. The mixed phenyl/mesityl phosphate ester so obtained remains a liquid at room temperature over a substantial period of time.

Mixed phenyl/mesityl phosphate ester composition

A process of preparing a tertiary haloalkylphosphine oxide by reacting a tertiary hydroxyalkyl phosphine with hydrogen halide under acidic conditions is described.

Production of tertiary haloalkylphosphine oxides

A curable polyurethane composition, which gives improved adhesives on curing, comprises an NCO urethane prepolymer and, as the curative therefor, a mixture of an aliphatic hydroxy compound and a polyhydroxyalkylphosphine oxide.

Polyurethane adhesive composition and a curative system containing a

A heat curable polyurethane composition comprising a blocked NCO prepolymer and a hydroxyl curative containing a polyhydroxyalkylphosphine oxide.

Polyurethane coating composition with a curative containing

Tertiary-alkyl phosphines, such as tris-(3-hydroxypropyl) phosphine may be oxidized by heating in the presence of water and between about 0.1 and about 10% by weight of an acid catalyst at a temperature above about 100.degree. C.

Method of oxidizing tertiary-alkyl phosphines

Polyurethane compositions are rendered fire retardant by substitution for some of the polyol normally present in the reaction mixture, an effective amount of a 3-hydroxypropyl phosphine oxide such as sec-butyl bis(3-hydroxypropyl) phosphine oxide.

Flame retardant polyurethane containing alkyl bis(3-hydroxypropyl)

A storage-stable bleaching detergent composition is obtained by adding, to a typical solid detergent mix, sodium perborate or sodium carbonate peroxide as a bleaching agent, and from about 50% to about 100% of the weight of the sodium perborate of an activator of the group consisting of the acetylated adduct of nitromethane and cyclohexanone, and the acetylated adduct of nitromethane and cyclopentanone.

Storage-stable detergent composition containing sodium perborate and

Peroxygen chemicals are activated, in laundering operations conducted below 80.degree.C, by using as activators certain isophorone derivatives, to wit, the isophorone enol acetates and isophorone oximinoacetate.

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Princeton, NJ, United States of America

Fui-Tseng H Lee