Crosslinkable polyether-amide
US4851494A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Jul 14, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31725
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Polyether-amides with a specific viscosity of 0.25 to 2.5, measured at 30.degree. C. in a 2% solution in dimethylformamide, containing, based on the total amount of recurring structural elements in the polyether-amide, 100 to 10 mol % of the recurring structural element of the formula I ##STR1## and 90 to 0 mol % of the recurring structural element of the formula II EQU --CO--A.sub.1 --CO--NH--E--NH-- (II) in which A is a radical of the formula ##STR2## in which R and R.sup.1 independently of one another are each a hydrogen, chlorine or bromine atom or methyl, A.sub.1 is an aliphatic, cycloaliphatic, aromatic or heterocyclic-aromatic radical of a dicarboxylic acid or of a dicarboxylic acid derivative, E is a polyether radical of the formula III ##STR3## in which p is a number from 1 to 100, T is phenylene, naphthylene or phenanthrylene, X is --SO.sub.2 --, --CO--, --SO--, --N.dbd.N--, --CF.sub.2 --CF.sub.2 --, ##STR4## in which R.sup.2 is C.sub.1 -C.sub.8 alkyl and R.sup.3 and R.sup.4 are each a hydrogen or halogen atom, and Y is an organic radical of a mono- or dinuclear, dihydric phenol, are soluble in organic solvents and can be used as covering or coating compositions, as press…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.