PTMEG polyurethane elastomers employing monofunctional polyethers
US5545706A · kind A · utility
19Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 9, 1995 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | May 9, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G18/283
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The addition of minor quantities of a hydroxyl-functional polyoxyalkylene monol to a PTMEG-derived isocyanate-terminated prepolymer during prepolymer preparation enables the preparation of glycol extended polyurethane elastomers which exhibit improved physical properties, particularly elongation, tensile strength, and tear strength, without significantly affecting elastomer hardness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.