Block polymers from isocyanurate-based polyesters and conventional polyester segments
US4053538A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1976 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Apr 9, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D251/34
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A substantially linear segmented copolymer of the formula (MX).sub.n where n is an integer greater than 0 and M is a bivalent organic radical segment of the formula ##STR1## wherein R is hydrogen, C.sub.1 to C.sub.4 alkyl, aryl, or C.sub.1 to C.sub.4 alkyl substituted aryl; A is C.sub.1 to C.sub.4 alkylene; A' is C.sub.1 to C.sub.4 alkylene the same or different than A, phenylene or alkyl substituted phenylene; and y is an integer greater than 0; and X is a bivalent organic radical segment of the formula ##STR2## WHEREIN G is a long chain radical segment of recurring linkages selected from the group consisting of ester and ether; and z is an integer greater than 0 the same or different than y.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.