Patent · US Active

Compositions comprising lignin

US9255188B2 · kind B2 · utility

4Cited by
23References
30Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 8, 2013
Grant dateFeb 9, 2016
Priority date—
Expiry dateOct 28, 2033

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G16/0293
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Compositions comprising lignin and low levels of undesirable impurities, such as compounds containing sulfur, nitrogen, or metals, are disclosed.

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