Order of Ingredient Addition

Different methods are used in microemulsion formation a low-energy emulsification method by dilution of an oil surfactant mixture with water and dilution of a water-surfactant mixture with oil and mixing all the components together in the final composition. These methods involve the spontaneous formation of microemulsions and the order of ingredient addition may determine the formation of the microemulsion. Such applications have been performed with lutein and lutein esters. ... 

Almost all sealants contain a mixture of a powdered filler incorporated into a viscous liquid, which results in a viscous liquid sealant having a paste-like consistency, Processing conditions can have a dramatic effect on sealant rheology, cure time, and physical properties. Typical processing variables are mixer speed (rpm), time, temperature, and vacuum. Order of ingredient addition is also important. 

In concentrated products, the stability and viscosity depend on other variables such as the type and concentration of solvent in the raw materials, the perfume composition and concentration, and the salt concentration. The order of ingredient addition also influences the product characteristics [3,26],... 

Differences between the viscosity profiles of a production-made paint and the laboratory-made blend may occur. Again, the order of ingredient addition may change. Shear rate, temperature, and dispersion time often differ. Also, production-made paints are manufactured with continually changing lots of raw materials that have different properties, whereas developmental work is often carried out with only one lot. Whenever possible, laboratory conditions should simulate production conditions as closely as possible. 

As with the other batches, the procedure should be followed exactly as writteir. The order of ingredient additions can be critical to the success of the casting batch. 

This is the area in which the compounder s expertise is the most evident and most needed. The number of alternatives is large and the optimum order of ingredient addition depends on the size, type and degree of wear of the machine, the available speeds and ram pressures, and the types and levels of rubber, filler, plasticizers and minor ingredients. 

Continuous processing of filled elastomers by twin-screw extrusion and achievement of viable mixing distribution characteristics present formidable challenges. A thermoplastic elastomer, HyTemp, is plasticised with DOA and filled with ammonium perchlorate powder and additives. It is found that the extruder geometry, the order of ingredient addition and die pressmisation have profoimd effects on the mixing distribution characteristics of the elastomer-based extraded profiles. The mixing distribution characteristics are quantitatively determined by X-ray diffraction techniques. 16 refs. 

The hydrothermal synthesis system for secondary scale screening is based on multi-well-tumbled autoclaves modules [49]. Each module contains 16 PTFE vials each vial has an internal volume of 7 mL. The reactors can operate up to 200 °C. Many chemical and physical factors can affect the final hydrothermal synthesis outcome, making it a good application for high-throughput methods. In addition to the gel ingredients, these factors include the order of reagent addition, gel mix-... 

The solubility of wax in vulcanised rubbers is low (of the order of 0.5% for NR) but enough wax has to be added to a rubber compound to ensure that once the compound has been vulcanised and the rubber cools, the rate of migrational movement of the wax from the rubber mass to the surface of the rubber is rapid. Dependant upon the application, the addition level of wax can be up to about 10 phr. Migration of the wax to the rubber surface will also carry other ingredients such as antioxidants, antiozonants and other materials (e.g., vulcanisation residuals), to enhance the surface protection. 

A change in the order of addition of ingredients for solution dosage forms or solutions used in unit operations (e.g., granulation solutions). 

Order of Polymerization Recipes Ingredients and Conditions Addition (8) ABS AMBS MBS... 

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