Processes for preparing diamino compounds
US5347049A · kind A · utility
1Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 1994 |
| Grant date | Sep 13, 1994 |
| Priority date | — |
| Expiry date | Jan 11, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G65/2612
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Di-amines endowed with chain extension activity for formulations such as polyureas and polyurethanes are disclosed, and which have the general formula: ##STR1## wherein n is 0-1000; R.sub.1, R.sub.2, R.sub.5, and R.sub.6 are each independently selected from the group consisting of H, --CH.sub.3, --CH.sub.2 CH.sub.3, --CH.sub.2 OH, and --CH.sub.2 --CH.sub.2 --OH; R.sub.3 =R.sub.4, and R.sub.3 and R.sub.4 are from the group --CH.sub.2 CH.sub.2 --; --CH.sub.2 --C(CH.sub.3)H--; and --C(CH.sub.3) H--CH.sub.2 --; and the diasteromeric salts thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.