摘要:
Complexes of bromine and/or iodine, the dihalide of poly(ethylene glycol) and alkali metal or alkaline earth metal halide are described. In particular, complexes of bromine with poly(ethylene glycol) dichloride and alkali metal halide, e.g., lithium or sodium bromide, are described.
摘要:
Halophors of a complex of bromine or iodine, a tertiary amide, e.g., dialkylformamide or dialkyl acetamide, and a halide, e.g., alkali metal or alkaline earth metal bromide or iodide, are described. The alkyl groups of the tertiary amide are typically lower alkyl groups, i.e., groups containing from 1 to 4 carbon atoms. Also described are solid biocidal compositions, e.g., fumigants, of particulate, free-flowing inert amorphous siliceous carrier having at least a biocidal amount of halophor admixed with said carrier.
摘要:
Halophors, e.g., bromophors, comprising a complex of sulfone, e.g., sulfolane, halide ion, e.g., sodium bromide, and halogen, e.g., bromine, are described. Solid, free-flowing halophor compositions of the aforesaid complex and an amorphous siliceous carrier are also described.
摘要:
Described are free-flowing particulate bromophor compositions of a siliceous carrier having absorbed therein from 1 to 80 weight percent of a bromophor that is a complex of (a) bromine, (b) alkali metal halide and (c) nonionic, anionic or cationic surfactant-type organic material.
摘要:
The water leaching of ammonium polyphosphate from compositions comprising organic polymer and particles of ammonium polyphosphate is reduced if the ammonium polyphosphate is surface-modified with anionic surfactant selected from fatty acids containing from about 12 to about 32 carbon atoms, bivalent metal salts of such fatty acids, trivalent metal salts of such fatty acids, and mixtures thereof.
摘要:
An active agent delivery device comprises (a) microporous material comprising a matrix consisting essentially of linear ultrahigh molecular weight polyolefin, a large proportion of finely divided water-insoluble filler of which at least about 50 percent by weight is siliceous, and interconnecting pores; and (b) a releasable active agent or precursor thereof associated with at least a portion of the filler.
摘要:
An enhanced oil recovery method is provided utilizing an alkaline waterflood injection fluid including a water-soluble precipitation inhibitor such as a polyacrylate, an acrylate-containing copolymer, an organophosphonate, a carboxylate-containing organophosphonate or a polymaleic anhydride whereby divalent metal cations dissolved within the injection fluid or within the reservoir water in the immediate vicinity of the injection well are substantially prevented from precipitating. Additionally, the injection fluid preferably provides sufficient alkaline material whereby beyond the immediate vicinity of the injection well the permeability characteristics of the reservoir are modified by precipitation of, e.g., divalent metal hydroxides or divalent metal carbonates.
摘要:
In accordance with the present invention, there is provided herein improved glass fiber dispersions for making uniform glass fiber mats by the wet-laid process. The well dispersed glass fiber compositions of this invention usually are prepared by mixing chopped glass fibers in water with a small amount of a select group of cationic quaternary ammonium compounds which have at least two long chain groups as part of the molecule. As features of the invention, the dispersions may be formed at relatively high glass fiber consistencies, in neutral or slightly alkaline solutions, and without generation of a high degree of foams. The resultant dispersions then are used to make very high quality glass fiber mats at high rates of production.
摘要:
In accordance with the present invention, there is provided herein a method of increasing the strength of wet glass fiber mats prepared by the wet-laid process. The wet-strength of such freshly prepared glass fiber mats are improved in this invention by treating the wet mat with a dilute solution of an anionic surfactant. As a feature of the invention, the wet-strength of such mats are increased substantially so that they may be conveniently handled and transferred, even manually, for further processing, e.g. for applying binders and drying, into the finished glass fiber mat product.