Stabilization of low molecular weight of polybutylene terephthalate/polyester blends with phosphorus compounds
US5367011A · kind A · utility
23Cited by
86References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1993 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Dec 8, 2013 |
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.