Thermosetting castable and curable polyurethane-urea polymers having improved flow and end-waste characteristics for insulating thermal barriers
US5554713A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 6, 1995 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Jan 6, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31605
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyurethane-urea polymers comprising inter-reacted isocyanate A), diol or polyol components B) and C), chain-extending glycol component D), polyester diol or polyol component E), and polyamine component F) using a polyurethane catalyst G) and an optional drying agent, each component having the further characteristics set forth in the Specification and each component being present in the relative proportions by weight as set forth in the Specification, have improved characteristics including a reduced flow time and diminished end-waste characteristics which obviate the necessity of taping a channel in a metal extrusion into which such polymers are poured to provide a thermal barrier in the bridged or debridged channel and are accordingly advantageously employed as thermal barriers in such structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.