Patent · US Active

Increasing paper strength by surface treatment

US11781271B2 · kind B2 · utility

0Cited by
3References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 13, 2020
Grant dateOct 10, 2023
Priority date
Expiry dateSep 15, 2040

Classification

  • Technology area (CPC D)Textiles; Paper
  • CPC primaryD21H21/20
  • WIPO fieldTextile and paper machines
  • WIPO sectorMechanical engineering

Abstract

This method for treating the surface of paper and/or one of the layers thereof, comprises the following successive steps:

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