Particulate compositions used in petroleum systems comprising encapsulated materials

摘要: The invention pertains to particulate compositions comprising a mixture of low melting point petroleum additive and higher polymer which is then coated with high polymer. the has close (i.e., significantly than additive). coating allows composition be added systems having temperatures without immediately dissolving, i.e., are only slowly soluble in hot crude oil. Accordingly, slow, controlled release afforded by invention.