Process for increasing the melt viscosity of polyamide with aryl phosphate compound
US4390667A · kind A · utility
15Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1981 |
| Grant date | Jun 28, 1983 |
| Priority date | — |
| Expiry date | Jul 6, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/48
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for decreasing the melt index and increasing the viscosity of polyamide compositions by adding thereto an effective amount of an aryl phosphate compound, and thereafter heating the composition until the desired changes in melt index or viscosity are attained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.