Olefinic and urethane-terminated ester polyalkadiene
US5710235A · kind A · utility
9Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1995 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Dec 11, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J151/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An olefinic-terminated polyalkadiene that includes carboxy ester linking groups and at least one nascent secondary hydroxyl group that is capped with a monoisocyanate. This polyalkadiene can be made by reacting a hydroxyl-terminated polyalkadiene with a saturated cyclic acid anhydride to form a carboxylic acid-terminated polyalkadiene, reacting the carboxylic acid-terminated polyalkadiene with an olefinic monoepoxide to form an olefinic-terminated polyalkadiene, then reacting the olefinic-terminated polyalkadiene with a monoisocyanate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.