Patent · US Active

Process for continuously preparing copolyamides from lactams and salts of diamines and dicarboxylic acids

US9200115B2 · kind B2 · utility

2Cited by

3References

10Claims

0Family size

Assignee

BASF SE

Inventors

Christoph Plachetta · Schifferstadt, DE
Achim Gerstlauer · Schifferstadt, DE
Reinhard Lang · Neustadt, DE
Thomas Sauer · Hochheim, DE
Jens Becker · Ludwigshafen am Rhein, DE

Key dates

Filing date	Dec 9, 2009
Grant date	Dec 1, 2015
Priority date	—
Expiry date	Mar 14, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G69/08
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A process for continuously preparing copolyamides from lactams and salts of diamines and dicarboxylic acids, in which lactams together with salts of diamines and dicarboxylic acids are passed from the top downward through a vertical polymerization tube at polyamide-forming temperatures, which comprises

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.