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US 2014/0193197 A1Published application
Polyurethane foam for concrete applications
OwnerBrian Antone Cvetezarinventor
Life of this patent
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Abstract
A two-part polyurethane foam for lifting concrete. The two parts are mixed at a 1:1 ratio where the first part is isocyanate (“Part A”), and second part (“Part B”) is a polyol. The second part is comprised of recycled polyurethane foam and other polyols.
Claims12
A polyurethane foam for lifting concrete, the polyurethane foam comprising:
- a sufficient amount of a first polyol comprised of recycled polyurethane foam;
- a sufficient amount of a second polyol;
- and
- a sufficient amount of isocyanate.
1 more element
A polyurethane foam for lifting concrete, the polyurethane foam comprising:
- a first component comprised of first recycled polyurethane foam;
- a second component comprised of a second recycled polyurethane foam;
- a third component comprised of tris (chloroisopropyl) phosphate;
- a fourth component comprised of a first catalyst;
- a fifth component comprised of a second catalyst;
- a sixth component comprised of a third catalyst;
- a seventh component comprised of water,
- wherein the first, second, third, fourth, fifth, sixth, and seventh components are combined, and
- wherein the first component comprises at least about 50% of the combination, the second component comprises at least about 30% of the combination, the third component comprises at least about 8% of the combination, the fourth component comprises at least about 0.05% of the combination, the fifth component comprises at least about 0.2% of the combination, the sixth component comprises at least about 0.05% of the combination, and the seventh component comprises at least about 1% of the combination;
- and
- a sufficient amount of isocyanate.
8 more elements
A method of lifting concrete, the method comprising:
- combining a sufficient amount of a first polyol comprised of recycled polyurethane foam with a sufficient amount of a second polyol to form a first part;
- adding a sufficient amount of isocyanate to the first part to generate a polyurethane foam;
- pumping the polyurethane foam into voids in concrete to move the concrete from a first elevation to a second elevation.
Dependencies are inferred from the claim text.