An emulsion explosive comprising a discontinuous oxygen-releasing salt phase, a continuous fuel phase and an emulsifier blend, said emulsifier blend comprising a first emulsifier component consisting of at least one emulsifier comprising a lipophilic moiety, being a polymer of a C.sub.2 to C.sub.6 olefin, and a hydrophilic moiety, being derived from an amine wherein the HLB of the first emulsifier component, as herein defined, is in the range of from 1.0 to 1.3 and a second emulsifier component ...

A polymer emulsion capable of becoming water swellable is provided by mixing a monomer represented by the general formula ##STR1## (wherein R.sub.1 indicates H or CH.sub.3, R.sub.2 and R.sub.3 indicate an alkyl radical represented by CnH.sub.2N+1 in which n is a positive integer, A indicates --O--CH.sub.2 -- or --NH--CH.sub.2 --CH.sub.2 --, and R.sub.1, R.sub.2 and R.sub.3 are selected within the range wherein the monomer exhibits sparing solubility or insolubility in water) with a crosslinking ...

A heat-sterilizable water and oil emulsion, preferably an O/W-emulsion, is obtained by incorporating from 0.05-5 wt. % each of a lyso-phospholipid (I) and a lipid-binding protein (II). Preferably the weight ratio between (I) and (II) is about 1:1. (I) is preferably obtained by treating a phospholipid or phospholipid-fraction with phospholipase A, and (II) is preferably blood serum albumin. Also a process of preparing the heat-sterilizable emulsions has been described.

The invention pertains to the use of a class of acetylenic surfactants to resolve or break water and oil emulsions. The surfactants are of particular advantage in resolving crude oil emulsions of the type encountered in desalter and similar apparatus designed to extract brines from the crude as they partition to the aqueous phase in the desalter.

The invention provides a copolymer emulsion latex having a solids content from about 20% to about 70%, preferably 40% to 60%, wherein a vinyl ester of an alkanoic acid having 1 to 13 carbon atoms forms at least about 40% by weight of the monomer charge characterized in that the polymerization is performed in the presence of an effective amount of stabilizing system comprising: A) at least one surfactant as defined hereinafter capable of providing sharp nucleation in the polymerization process an...

A photochromic material adapted for coating light transmissive materials. The photochromic material contains photosensitive silver halide crystals having dimensions in the range of approximately 50 Angstroms to 800 Angstroms. The silver halide crystals are surface doped with copper ions and another sensitizer selected from mild reducing agents or sulfur-bearing ions. The crystals are dispersed in a protective polymer that does not irreversibly bind halogen.

Copolymers are formed under pressure, preferably in the presence of a surfactant having an alkylene moiety, and then post reacted with an epoxy silane. The resultant emulsion is usuable e.g. in tile adhesives and paints.

A method of resolving water-in-oil emulsions resulting from the organic solvent extraction of uranium from aqueous leach liquors which comprises treating said emulsions with at least 20 parts per million of a water-soluble acrylamide copolymer which contains from 5 - 50% by weight of a lower alkyl substituted tertiary aminoethyl methacrylate and quaternary ammonium salts thereof.

A mixture in-oil antifoam composition comprising a mixture of a defoaming agent comprising a defoamer in an oil carrier, a non-ionic surfactant having an HLB number less than about 10, and water. In particular, the defoamer is particulate hydrophobic silica dispersed in oil and the non-ionic surfactant has an HLB number of between 2 to 8.

A novel adhesive comprising an aqueous emulsion of a polymer comprising a vinyl monomer and an alkylacrylamidoglycolate alkyl ether monomer. The polymer in contact with randomly laid fibers can be heat curable at elevated temperature to form an intact nonwoven fabric without the release of substantial amounts of formaldehyde.