Phosphorylation of products for flame retardant applications
AssigneePurdue Research Foundation
InventorsJeffrey Paul Youngblood, John Alan Howarter, Gamini Patrick Mendis
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Abstract
Disclosed herein are flame retardant materials, and in particular materials and processes for phosphorylating materials for flame retardant applications.
Claims4
A flame retardant additive comprising a reaction product of a phosphorylation agent and a demethylation agent pre-treated phenolic macromolecule-containing material selected from the group consisting of tannin, tannic acid, lignin, and any combination thereof, wherein said phenolic macromolecule-containing material is pre-treated with said demethylation agent to generate additional free hydroxyl groups that are capable of reacting with said phosphorylation agent to provide additional phosphate groups, wherein said phosphate groups comprise diphenyl phosphate group:
Dependencies are inferred from the claim text.