Patent · US Expired

Water reducing agent with reduced air

US4351671A · kind A · utility

10Cited by
2References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 15, 1981
Grant dateSep 28, 1982
Priority date—
Expiry dateApr 15, 2001

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC04B28/02
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Additive, e.g., ethoxylated nonylphenol, for lignin type water-reducing agent in hydraulic cement compositions, reduces air entrainment in the concrete mix.

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