Sulfur sprayable

Sulfur is used directly in sulfur-additive solutions which are used as coatings (3, 4, 5, 6). Dicyclopentadiene is a potentially cheap material that can form copolymers with liquid sulfur. The patent literature reports applications of the sulfur-dicyclopentadiene system in sprayable coatings, rubber vulcanizates, etc. However, very little has been written on the chemistry, characterization, and properties of this system. 

The behavior of melt viscosity of sulfur-dicyclopentadiene solutions is of obvious interest from the point of sprayable coatings. The melt viscosity behavior has been reported recently, but only qualitatively and over a narrow range of compositions (18). The viscosity of sulfur measured by the capillary method by Bacon and Fanelli (19, 20) is considered to be the best (21). Recently, however, the viscosity of sulfur has been measured by an apparatus containing an electric motor and a rotating cylinder (22). Viscosity of the sulfur-DCP solutions are measured here with the help of a Brookfield synchro-lectric viscometer, which is of the later kind. Viscosity measurements have been carried out to follow the copolymerization reaction and to analyze the viscosity behavior. 

Chevron s emphasis has been directed mainly toward high-strength, sprayable composites which are chemically modified sulfur that contains organosulfur plasticizers, fillers, and other additives. The type and amount of each additive is selected to impart the properties required for each end use. 

Kane, J. C., Sprayable Sulfur Road Marking Compounds, U. S. Patent... 

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