Silicone backbone prepolymers for flame resistant polyurethanes
AssigneeDow Global Technologies LLC
InventorsChristian Bruchertseifer, Mark T. Anater
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Abstract
Embodiments of the invention provide for coatings that include the reaction product of at least a sodium silicate solution, at least one isocyanate reactive component having at least one of a hydroxyl and an amine functionality of between about 2 and about 4, at least one intumescent filler, at least one filler, optionally a suspension agent and at least one prepolymer having isocyanate functional groups. The prepolymer includes the reaction product of a prepolymer reaction mixture. The prepolymer reaction mixture includes at least one isocyanate, at least one polyol having an hydroxyl functionality of between about 2 and about 6, and at least one silicone surfactant having at least one isocyanate reactive moiety.
Claims10
A coating comprising the reaction product of a reaction system, the reaction system comprising:
- at least one prepolymer having isocyanate functional groups, wherein the prepolymer comprises the reaction product of a prepolymer reaction mixture comprising:
- at least one isocyanate;
- at least one polyol having an hydroxyl functionality of between about 2 and about 6;
- and
- at least one silicone surfactant having at least one isocyanate reactive moiety;
- a sodium silicate solution
- at least one isocyanate reactive component having at least one of a hydroxyl and an amine functionality of between about 2 and about 4;
- at least one intumescent filler that is at least one of expandable graphite and melamine;
- at least one filler that is different from the intumescent filler;
- and
- optionally a suspension agent.
Dependencies are inferred from the claim text.