Process for the production of a polymerized material and the product produced thereby
US6291598A · kind A · utility
Inventors
Key dates
| Filing date | Oct 18, 1999 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Oct 18, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G69/44
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A polymerized material produced by the polymerization of an organic amide monomer in the presence of an organic carbonate and a process for the preparation thereof. The process comprises the steps of: heating an amount of the organic anide monomer to a temperature above its melting point; first mixing an amount of an anionic initiator with at least a portion of the amount of heated organic amide mnonomer to produce an amount of activated monomer, wherein the anionic initiator is not comprised of an alkali metal; second mixing an amount of the organic carbonate with at least a portion of the amount of heated organic amide monomer to produce an amount of dissolved organic carbonate; and polymerizing the amounts of heated organic amide monomer and activated monomer in the presence of the amount of dissolved organic carbonate to produce the polymerized material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.