Patent · US Expired

Nitrogen-containing polymeric compounds

US5093470A · kind A · utility

3Cited by
3References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 14, 1991
Grant dateMar 3, 1992
Priority date
Expiry dateAug 14, 2011

Classification

  • Technology area (CPC D)Textiles; Paper
  • CPC primaryD21H17/54
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Crosslinkable compounds obtainable by reaction of water-soluble mono- or polyamines with 2,3-epoxypropyl sulphonates or 2-hydroxypropyl 1,3-bis-sulphonates or their mixtures with up to 15 mol % of an epihalogenohydrin or diyhalogenohydrin are used for imparting wet strength to paper.

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