Patent · US Expired

Increased volatile removal during solid phase processing of nylon 6 by temperature programming

US6476181B1 · kind B1 · utility

5Cited by
10References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 1, 2001
Grant dateNov 5, 2002
Priority date—
Expiry dateJun 1, 2021

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G69/46
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Process for increasing the molecular weight of nylon 6 while reducing its content of caprolactam and other volatiles by a two-staged heating process.

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