Patent · US Active

Compositions comprising lignin

US8759498B2 · kind B2 · utility

5Cited by
110References
27Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 16, 2012
Grant dateJun 24, 2014
Priority date—
Expiry dateMay 16, 2032

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08G8/20
  • 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.