Patent · US Expired

Wet strong tissue paper

US6852197B2 · kind B2 · utility

2Cited by

28References

13Claims

0Family size

Assignee

AKZO NOBEL N.V. · NL

Inventors

Hans Wallenius · Gothenburg, SE
Sussan Sandberg · Onsala, SE
Marek Gorzynski · Düren, DE
Oliver Struck · Henfenfeld, DE

Key dates

Filing date	Jul 22, 2002
Grant date	Feb 8, 2005
Priority date	—
Expiry date	Jul 22, 2022

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD21H17/55
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Tissue paper having a bulk between 2 and 8 cm3/g and containing an amount of a wet strength agent, wherein the tissue paper contains a wet strength agent in the form of a nitrogen-containing polymer having hydrophobic side-chains. Said tissue paper before converting has a relative wet strength value (RWS) of at least 45%.

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