Suspo-emulsion

In some areas, for example in crop protection, moving away from solvents simply required the development of new forms of delivery, e.g. concentrated emulsions or suspo-emulsions progressively displaced the emulsifiable concentrates. A change in the surfactant system was obviously necessary, but the new formulations could be made using commercially available products. In other instances, for example in the field of emulsion polymers, new colloidal species were developed and are still the subject of extensive research the reactive surfactants. 

Several combination products of 9 have been developed for foliar treatment, e.g., the suspo-emulsion marketed as Monarca (SE 112.5, 9+beta-cyfluthrin) and Proteus (9+deltamethrin). The latter is based on the new O-TEQ formulation, which increased the penetration of the active ingredients remarkably. 

Gundersen, S. A., Pihlstr0m, R. and Lauten, R. A. (2005) Lignin-based stabilisers for emulsion and suspo-emulsion formulations, in Book of Abstracts (2) for Poster Sessions, 11th lUPAC International Congress of Pesticide Chemistry, Kobe, Japan, 2005, p. 167. 

Uses Dispersant, emulsifier, compatibility agent, chelating agent in o/w emulsions, suspension concentrates, micro-emulsions, suspo-emulsions Features Lowm.w,... 

Uses Multipurpose emulsifier, dispersant for emulsifiable concentrate fonnulas containing polar solvents recommended for use within suspension concentrate oll-ln-water emulsion, suspo-emulsion, and waler-dlspersible granule fonnulalions Features Low foam... 

Uses Emulsifier for emulsifiable cones., o/w emulsions, and suspo-emulsions Features Lipophilic high flash pt. 

Uses Foam control agent for emulsiflable cones., emulsions in water, suspension cones., suspo-emulsions, water disp. grans., wettable powds., crop protection prods. 

Uses Specific dispersing and wetting agent for suspension cones, and suspo-emulsions... 

As an alternative to pressed powders, liquid foundations have attracted special attention in recent years. Most foundation make-ups are made of O/W or W/0 emulsions in which the pigments are dispersed either in the aqueous or the oil phase. These are complex systems consisting of a suspension/emulsion (suspoe-mulsion) formulation. Special attention should be paid to the stability of the emulsion (absence of flocculation or coalescence) and suspension (absence of flocculation). This is achieved by using specialised surfactant systems such silicone polyols or block copolymers of poly(ethylene oxide) and poly(propylene oxide). Some thickeners may be also added to control the consistency (rheology) of the formulation. 

---