Patent · US Expired

Using a dicarboxylic acid dialkyl ester brightening

US6344108B1 · kind B1 · utility

34Cited by

12References

16Claims

0Family size

Assignee

Stockhausen GmbH & Co. KG · DE

Inventors

Ingo Von Medvey · Duisburg, DE
Thomas Rajcsanyi · Dinslaken, DE
Peter Hanssle · Haltern, DE
Joachim Werres · Drebber, DE

Key dates

Filing date	Aug 30, 1999
Grant date	Feb 5, 2002
Priority date	—
Expiry date	Aug 30, 2019

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB27N3/00
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A process for producing fibrous materials for the manufacture of cellulose, paper or wood materials by using at least one dicarboxylic acid dialkyl ester and/or a copolymer of polyester-polyether and/or fatty acid polyol monopolyester, dipolyester, tripolyester and or higher polyester. Fibrous materials with an improved quality and higher yield are thus produced.

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