Process for preventing hydrolytic degradation of linear saturated aromatic polyesters comprising a thermoplastic saturated aromatic polyester and a moisture scavenger polymer
US4075263A · kind A · utility
5Cited by
3References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 1976 |
| Grant date | Feb 21, 1978 |
| Priority date | — |
| Expiry date | Apr 13, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Compositions comprising linear saturated aromatic polyesters with a minor amount of a moisture scavenger polymer containing cyclic acetal or cyclic ketal units, process for preventing hydrolytic degradation of such polyesters comprising introducing such moisture scavenger polymers, and process of using certain polymers containing cyclic acetal or cyclic units as moisture scavengers for linear saturated aromatic polyesters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.