Use of agents in the manufacture of pulp and paper

US5863385A · kind A · utility

Assignee

• Stockhausen GmbH & Co. KG · DE

Inventors

• Frank Siebott · Korschenbroich, DE
• Joachim Werres · Drebber, DE

Key dates

• Filing date: May 15, 1996
• Grant date: Jan 26, 1999
• Expiry date: May 15, 2016

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S162/04
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

The present invention relates to the use of oil-in-water emulsions to clean machines and parts of plants in the production of pulp, paper, paper board, and cardboard and to prevent impurities of adhesives and adherent resins to those units. The emulsion comprises as component of the oil phase at least one of the following substances: PA0 1. a saturated or unsaturated, open-chain or cyclic, normal or isomeric hydrocarbon with 8-30 carbon atoms PA0 2. a saturated or unsaturated fatty alcohol, a saturated or unsaturated fatty acid, a fatty acid monoalkylester, a fatty acid amide or a fatty acid monoalkylamide of a saturated or unsaturated fatty acid, all of the compounds mentioned under 2. having 8 to 30 carbon atoms PA0 3. a mono- or polyester of a saturated or unsaturated, mono- or multivalent carboxylic acid with 2 to 30 carbon atoms and polyols, with the exception of polyethylene glycols PA0 4. a polyamide of saturated or unsaturated fatty acids with 8 to 30 carbon atoms and aliphatic polyamides with two to six nitrogen atoms PA0 5. an acyclic, preferably monocyclic and/or bicyclic terpene, in particular a terpene hydrocarbon and/or a terpene alcohol and/or PA0 6. a polyoxyalkylen…