Stabilization of low molecular weight polybutylene terephthalate/polyester blends with phosphorus compounds
US5589530A · kind A · utility
18Cited by
67References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1994 |
| Grant date | Dec 31, 1996 |
| Priority date | — |
| Expiry date | Sep 19, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Blends of low molecular weight PBT resin and high molecular weight polyester resin, such as high molecular weight PBT resin, are imparted with excellent melt viscosity stability by the addition of certain phosphorus-containing compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.