Preservatives for cellulose containing products

US4970201A · kind A · utility

Assignee

• Rutgerswerke Aktiengesellschaft · DE

Inventors

• Eberhard Giebeler · Schriesheim, DE
• Detlef Wehle · Burgkirchen an der Alz, DE
• Helmut Hartner · Weinheim, DE
• Franz Konig · Frankfurt am Main, DE
• Helmut Berenbold · Wiesbaden, DE

Key dates

• Filing date: Aug 9, 1989
• Grant date: Nov 13, 1990
• Expiry date: Aug 9, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L79/02
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A biocidal preservative for cellulose-containing products containing a biocidally effective amount of a polymeric quaternary ammonium borate obtained by simultaneous reaction of (A) at least one member of the group consisting of boric acid and salts and esters thereof and (B) an amine of the formula ##STR1## and (C) ethylene oxide or propylene oxide wherein R.sub.1 is alkyl or alkenyl of 8 to 22 carbon atoms and R.sub.2 is hydrogen, alkyl of 1 to 22 carbon atoms or --CH.sub.2 CH.sub.2 NH.sub.2 or R.sub.1 is alkyl of 1 to 4 carbon atoms and R.sub.2 is --(CH.sub.2 CH.sub.2 O).sub.x --H or --(CH.sub.2 CH.sub.2 CH.sub.2 O).sub.x --H, R.sub.3 is selected from the group consisting of hydrogen, --(CH.sub.2 CH.sub.2 O).sub.x --H, (CH.sub.2 CH.sub.2 CH.sub.2 O).sub.x --H and --CH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2, R.sub.4 and R.sub.6 are individually selected from the group consisting of alkyl of 1 to 4 carbon atoms, --(CH.sub.2 CH.sub.2 O).sub.x --H and --(CH.sub.2 CH.sub.2 CH.sub.2 O).sub.x --H, and R.sub.5 and R.sub.7 are individually --(CH.sub.2 CH.sub.2 O).sub.x --H and --(CH.sub.2 CH.sub.2 CH.sub.2 O).sub.x --H, A is selected from the group consisting of --(CH.sub.2).sub.n, --(CH.sub.2…