Abstract: A guanidine phosphate composition containing both monoquanidine phosphate and diguanidine phosphate and characterized by a weight loss of less than 1% when heated for one hour at 220.degree. C. is prepared by mixing together about equimolar quantities of phosphoric acid and cyanoguanidine and heating this reaction mixture with agitation in the presence of a surfactant to a temperature in the range of 200.degree. C. to 240.degree. C. Agitation is continued for two hours at 200.degree. C. or until foaming stops (about one hour at 240.degree. C.). The guanidine phosphate composition so obtained may be applied to cellulosic materials to render them fire retardant.

Abstract: A bituminous binder, useful in the production of form coke, is obtained by reacting kiln tar recovered from a form coke oven with formaldehyde in the presence of a mineral base until the ASTM Ring and Ball softening point is at least about 58.degree. C. Calcium hydroxide is the preferred base; formalin or paraformaldehyde is used as a source of formaldehyde.

Abstract: Flame retardancy is imparted to curable vinyl-unsaturated polymers such as unsaturated polyesters and diallyl and dimethallyl phthalates, by incorporating with them from about 5 to 50% of total copolymer weight of diallyl tetrabromophthalate, a monomer which copolymerizes with the unsaturated polymer.

Abstract: Polyvinyl chloride compositions with heat-deflection temperatures of above 100.degree. C are obtained by combining suspension grade polyvinyl chloride with diallyl phthalate with or without an unsaturated polyester, and appropriate polymerization catalysts for the diallyl phthalate incorporating into the polymer and polymerizable additive high loadings of ground limestone, from about 40% to about 100% of the total weight of final polymer, and conventional stabilizers for polyvinyl chloride.