Cationic dyeable copolyesters
US4161577A · kind A · utility
8Cited by
5References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 24, 1972 |
| Grant date | Jul 17, 1979 |
| Priority date | — |
| Expiry date | Nov 24, 1992 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/06
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Copolyester resins comprising the condensation polymerization product of (a) an aromatic dicarboxylic acid or its lower dialkyl ester (b) an aliphatic glycol and a minor amount of a substituted aromatic acid ester represented by the formula: ##STR1## where R is a lower alkyl radical having 1 to 4 carbon atoms and M is an alkali metal from the group consisting of sodium, potassium, and lithium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.