Process for remelting polyamides
US4591468A · kind A · utility
7Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1983 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Mar 22, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2377/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a process for the production of a shaped article involving the remelting of a polyamide which has been subjected to a drying stage, such as that which occurs during solid phase polymerisation, the stage of conditioning the polyamide prior to remelting can be reduced or even avoided by adding a controlled amount of water to the polymer when molten or immediately prior to its remelting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.