Abstract: Thermoplastic polymers, having antistatic properties, are obtained by incorporating in the polymers a liquid mixture of trialkylphosphine oxides.

Abstract: Compositions comprising organic phosphorus compounds having a peroxygen group which is either a hydroperoxyalkyl (H--OO--C--) group or a peroxyether (--C--OO--C--) group. There is at least one such group per 500 phosphorus atoms in the composition. These peroxygen compounds may be made by passing oxygen through a liquid comprising a phosphorus compound which has an aliphatic carbon, having an abstractable hydrogen, directly attached to a carbon of an aryl ring; for example, an isopropylphenyl phosphate. The peroxygen compounds may be added to compositions comprising peroxide-reactive organic polymers to increase flame resistance.

Abstract: Diallyl maleate in combination with alkyl phosphates, including mixed alkyl aryl phosphates, when added to styrene-unsaturated polyester resin systems and cured with a free-radical forming initiator provides a high level of flame resistance.

Abstract: This invention relates to flame-retardant phosphorus-containing materials, particularly suitable for use as an additive, having little or no plasticizing effect, in flammable organic plastics. One such material may be made by reacting methallyl chloride with phenol or phenol-isopropylphenol blend and then phosphorylating. Another such material may be made by halogenating isopropyl groups of an isopropylphenyl phosphate blend and then dehydrohalogenating to make an isopropenyl-containing product, which may be oligomerized as by heating with a catalyst. The isopropenyl-containing product may also be employed as a flame-retarding comonomer.

Abstract: Diallyl maleate in combination with alkyl phosphates, including mixed alkyl aryl phosphates, when added to styrene-unsaturated polyester resin systems and cured with a free-radical forming initiator provides a high level of flame resistance.

Abstract: A plasticizing composition for polyvinyl chloride resin is prepared by mixing from about 20 to about 50 parts by weight of tris(alkoxyalkyl)phosphate having the formula ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are alkoxyalkyl radicals having the formula: ##STR2## wherein n is an integer from 1 to 18; x is an integer from 1 to 2;R' is either hydrogen or an alkyl radical, andR" is either hydrogen or an alkyl radical;in combination with from about 80 to about 50 parts by weight of another phosphate ester selected from the group consisting triaryl phosphate, alkyl diphenyl phosphate, trialkyl phosphate, tris(alkylphenyl)phosphate, alkylphenyl/phenyl phosphate, and mixture thereof. Polyvinyl chloride resins plasticized with 30 or more parts per hundred of such phosphate ester plasticizer mixtures are heat stable, fire resistant and flexible at low temperatures.

Abstract: Diallyl maleate in combination with triethyl phosphate, when added to styrene-unsaturated polyester resin systems and cured with a free-radical forming initiator provides a high level of flame resistance.

Abstract: This specification discloses that certain polychlorinated or polybrominated aromatic hydrocarbon compounds can be incorporated in thermosetting polymer compositions to make the thermosetting compositions flame retardant without injuring the desirable physical and electrical properties of the thermosetting compositions when in the thermoset state. These polyhalogenated aromatic hydrocarbons are apparently caused to reset into the thermosetting composition, provided there is a minimum of 1 mol of a polyunsaturated monomer containing carbon to carbon unsaturation for each 3 mols of polychlorinated aromatic hydrocarbons.