Impact and melt strength improvement of poly(alkylene terephthalate)
US4034013A · kind A · utility
137Cited by
9References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 1975 |
| Grant date | Jul 5, 1977 |
| Priority date | — |
| Expiry date | Nov 13, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L67/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A multiple stage polymer having a rubbery first stage and an epoxy functional hard final stage, a method for improving the notched Izod impact strength and melt strength of poly(alkylene terephthalates), compositions comprising poly(alkylene terephthalates) and the multiple stage polymer, and articles molded therefrom are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.