Aromatic bis sulfonamide-containing nylon or polyester
US4957958A · kind A · utility
19Cited by
6References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | May 23, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/43
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Described are thermoplastic polymers (e.g., nylon) containing an aromatic bis-sulfonamide having at least two aromatic rings and from 14 to 30 carbon atoms in the molecule in quantity sufficient to improve the melt flow properties of the polymer. These sulfonamides are of advantage in that they have relatively low volatilities at polymer processing temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.