Chemical digestion process using organosiloxane compounds

US6521084B1 · kind B1 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Willibald Burger · Burghausen, DE
• Outi Neubig · Tegernsee, DE
• Kimmo Lappalainen · Joensuu, FI
• Hannu Wahlberg · Kotka, FI

Key dates

• Filing date: Jun 27, 1997
• Grant date: Feb 18, 2003
• Expiry date: May 23, 2019

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D21C3/222
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

In a process for extracting cellulose from fibrous materials such as wood, the fibrous materials are reacted with a chemical disintegration solution in the presence of organosilicic compounds.