TW200732363A - Solid polyurethane compositions, infrastructure repair and geo-stabilization processes - Google Patents
Solid polyurethane compositions, infrastructure repair and geo-stabilization processesInfo
- Publication number
- TW200732363A TW200732363A TW095138941A TW95138941A TW200732363A TW 200732363 A TW200732363 A TW 200732363A TW 095138941 A TW095138941 A TW 095138941A TW 95138941 A TW95138941 A TW 95138941A TW 200732363 A TW200732363 A TW 200732363A
- Authority
- TW
- Taiwan
- Prior art keywords
- elastomer
- geo
- grout
- polyurethane foam
- processes
- Prior art date
Links
Abstract
The present invention provides processes for infrastructure repairs and geo-stabilization with a low-exotherm polyurethane foam, grout or elastomer. The inventive process involves at least partially filling a cavity in the infrastructure or earth with a low-exotherm polyurethane foam, grout or elastomer made from at least one polyisocyanate, at least one isocyanate-reactive compound and an organic particulate material capable of absorbing heat, optionally in the presence of one or more chosen from water, surfactants, pigments, catalysts, alkali silicates and fillers and curing the polyurethane foam, grout or elastomer. The inventive processes may improve the repair of buildings, foundations, roads, bridges, highways, sidewalks, tunnels, manholes, sewers, sewage treatment systems, water treatment systems, reservoirs, canals, irrigation ditches, etc.; and in the geo-stabilization of mines, caves, wells, bore-holes, ditches, trenches, pits, cracks, fissures, craters, postholes, potholes, sinkholes, wallows, waterholes and the like. The inventive solid polyurethane compositions are made from at least one polyisocyanate, at least one isocyanate-reactive compound, and an organic particulate material capable of absorbing heat, optionally one or more chosen from water, surfactants, pigments, catalysts and fillers. Such solid polyurethane compositions may improve reaction injection molding (RIM), spray elastomer and cast molding processes.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/257,226 US20070093566A1 (en) | 2005-10-24 | 2005-10-24 | Infrastructure repair and geo-stabilization processes |
US58335206A | 2006-10-19 | 2006-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200732363A true TW200732363A (en) | 2007-09-01 |
Family
ID=57913195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095138941A TW200732363A (en) | 2005-10-24 | 2006-10-23 | Solid polyurethane compositions, infrastructure repair and geo-stabilization processes |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW200732363A (en) |
-
2006
- 2006-10-23 TW TW095138941A patent/TW200732363A/en unknown
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