Patent · US Expired

Fibrous materials treated with a polyvinylamine polymer

US6824650B2 · kind B2 · utility

33Cited by
148References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 18, 2001
Grant dateNov 30, 2004
Priority date
Expiry dateDec 18, 2021

Classification

  • Technology area (CPC D)Textiles; Paper
  • CPC primaryD21H27/002
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

Textile materials, including paper webs, treated with a polyvinylamine polymer and a second agent that interacts with the polyvinylamine polymer is disclosed. The second agent added with the polyvinylamine polymer can be, for instance, a polymeric anionic reactive compound or a polymeric aldehyde-functional compound. When incorporated into a paper web, the combination of the polyvinylamine polymer and the second agent provide improved strength properties, such as wet strength properties. In an alternative embodiment, the polyvinylamine polymer and the second polymer can be applied to a textile material for increasing the affinity of the textile material for acid dyes.

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