Patent · US Expired

Printability of paper

US4908240A · kind A · utility

32Cited by

4References

10Claims

0Family size

Assignee

BASF SE

Inventors

Werner Auhorn · Bischofswerda, DE
Hans-Juergen Degen · Lorsch, DE
Lothar Hoehr · Worms, DE
Ulrich Riebeling · Schifferstadt, DE

Key dates

Filing date	Sep 15, 1988
Grant date	Mar 13, 1990
Priority date	—
Expiry date	Sep 15, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31906
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

The printability of paper is improved by applying an aqueous coating agent consisting of PA0 (a) 100 parts by weight of a finely divided pigment, PA0 (b) from 5 to 70 parts by weight, based on solids, of a cationic aqueous polymer dispersion of a paper size and PA0 (c) from 0.01 to 10 parts by weight of a surfactant which interferes with the formation of the surface size and/or of a polymeric dispersant in an amount of from 0.5 to 4 g/m.sup.2 to one or both surfaces of the paper and drying the coated paper.

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