Flame-retardant polymers derived from polyols and polyacids
AssigneeInternational Business Machines Corporation
InventorsDylan J. Boday, Joseph Kuczynski, Timothy C. Mauldin
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Abstract
A process for the production of a flame-retardant polymer is disclosed. The process includes reacting a polyol, for example glycerol, with an organophosphorus monochloride material to produce a phosphorus-functionalized polyol derivative. The process further includes reacting the phosphorus-functionalized polyol derivative with a polycarboxylic acid to form the flame-retardant polymer, wherein phosphorus is chemically bound to a polymer chain of the flame-retardant polymer.
Claims20
A flame-retardant polymer formed by a process that includes:
- reacting a triol with an organophosphorus mono-chloride to produce an intermediate compound;
- and
- reacting the intermediate compound with a polycarboxylic acid to form the flame-retardant polymer, wherein phosphorus is chemically bound to a polymer chain of the flame-retardant polymer.
A flame-retardant polymer formed by a process that includes:
- reacting a triol with an organophosphorus mono-chloride, in a molar ratio of the organophosphorus mono-chloride material to the triol of not less than about 0.5 and is not greater than about 1, to produce an intermediate compound having unreacted hydroxyl groups;
- and
- reacting at least a portion of the unreacted hydroxyl groups with a polycarboxylic acid to form the flame-retardant polymer, wherein phosphorus is chemically bound to a polymer chain of the flame-retardant polymer.
A flame-retardant polymer formed by a process that includes:
- reacting a triol with a mixture including diphenylphosphinic chloride, in a molar ratio of the diphenylphosphinic chloride to the triol of not less than about 0.5 and is not greater than about 1, to produce an intermediate material having unreacted hydroxyl groups;
- and
- reacting at least a portion of the unreacted hydroxyl groups with a polycarboxylic acid to form the flame-retardant polymer, wherein phosphorus is chemically bound to a polymer chain of the flame-retardant polymer.
Dependencies are inferred from the claim text.