Polyesteramides, polyetheresteramides and process for preparation thereof
US4839441A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1988 |
| Grant date | Jun 13, 1989 |
| Priority date | — |
| Expiry date | Feb 17, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Novel polyesteramides and polyetheresteramides are provided which have the formula: ##STR1## wherein A represents a divalent polyamide group, PA0 R.sub.3 and R.sub.4 represent hydrogen, or only one of R.sub.3, or R.sub.4 is an alkyl radical containing from 1 to 24 carbon atoms, PA0 R.sub.1 is a linear or branched, alkyl radical, or an unsaturated radical containing from 1 to 24 carbon atoms or an aromatic or cycloaliphatic radical, PA0 y+z has a value between 2 and 100, PA0 n represents a number such that the recurring units constitute a macro molecular chain. These products are obtained by polycondensation of a dicarboxylic polyamide with .alpha., .omega. diol which is a hydroxylated beta-tertiary amine or a polyoxyalkyleneglycol containing in the chain one tertiary amine function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.