Process for preparing ester amides and polyesteramides
US6054552A · kind A · utility
1Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1998 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Aug 14, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/44
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
In process for making a polyesteramide composition, an alkyl aryl terephthalate ester is formed from a dialkyl terephthalate by transesterification and then reacted with an alkyl diamine to form a bis-ester amide wherein the reaction product containing the bis-ester amide may be directly contacted with an alkyl diamine without the need for purification steps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.