Fire resistant polyurethane coating composition and a fire-resistant product comprising the same
OwnerXiangyang Tai, Rongbin Lan +3inventors
InventorsXiangyang Tai, Rongbin Lan, Juelin Liu, Kshitish A. Patankar, Charles J. Rand
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Abstract
A fire-resistant polyurethane composition and a fire-resistant product comprising the fire-resistant polyurethane composition. The fire-resistant polyurethane coating composition comprises: an aromatic isocyanate component, a polyol component, and an intumescent component; wherein the aromatic structure in the polyurethane backbone is ≥24 wt %. The fire-resistant polyurethane composition could provide surprisingly good intumescent layer toughness as well as good insulation performance.
Claims13
A fire-resistant polyurethane coating composition comprising:
- a. an aromatic isocyanate component;
- b. a polyol component;
- and
- c. an intumescent component;
- wherein the aromatic structure content in the polyurethane backbone is ≥24 wt %, wherein “aromatic structure content in the polyurethane backbone” is defined as the percentage of all atoms' weight in the conjugated planar cyclic ring structure in the precursors to the sum of precursors to form the polyurethane, and precursors in the polyurethane coating composition include all polyols, isocyanates and prepolymers of isocyanates, if present.
A fire-resistant product comprising a substrate and a fire-resistant polyurethane coating composition applied on the substrate, the fire-resistant polyurethane coating composition comprising:
- a. an aromatic isocyanate component;
- b. a polyol component;
- c. an intumescent component;
- wherein the aromatic structure content in the polyurethane backbone is ≥24 wt %, wherein “aromatic structure content in the polyurethane backbone” is defined as the percentage of all atoms' weight in the conjugated planar cyclic ring structure in the precursors to the sum of precursors to form the polyurethane, and precursors in the polyurethane coating composition include all polyols, isocyanates and prepolymers of isocyanates, if present.
Dependencies are inferred from the claim text.