Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Patent
1984-07-10
1986-05-13
Lilling, Herbert J.
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
42840221, 428520, 523201, 523206, 523207, 525227, 525902, B23B 2514, B23B 2708, B23B 2732, C08K 900
Patent
active
045886407
ABSTRACT:
The invention pertains to particulate compositions comprising a mixture of a low melting point petroleum additive and a higher melting point polymer which mixture is then coated with a high melting point polymer. The mixture of the additive and higher melting point polymer has a melting point close to the melting point of the polymer (i.e., significantly higher than the melting point of the additive). The high melting point polymer coating allows the composition to be added to petroleum systems having high temperatures without immediately dissolving, i.e., the compositions are only slowly soluble in hot crude oil. Accordingly, a slow, controlled release is afforded by the compositions of the invention.
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Lilling Herbert J.
Petrolite Corporation
Wexler Robert E.
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