Magnetic recording tape

US4018967A · kind A · utility

Assignee

• BASF SE

Inventors

• Hermann Roller · Ludwigshafen, DE
• Werner Senkpiel · Hemsbach, DE
• Gerd Wunsch · Speyer, DE
• Job-Werner Hartmann · Ludwigshafen, DE
• Friedrich Fuchs
• Joachim Hack · Ludwigshafen, DE
• Volker Kiener · Bad Dürkheim, DE
• Herbert Motz · Beindersheim, DE
• Werner Ostertag · Havelsee, DE

Key dates

• Filing date: Sep 19, 1974
• Grant date: Apr 19, 1977
• Expiry date: Sep 19, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S428/90
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Magnetic recording tape especially suitable for use as video tape and computer tape, comprising a base carrying a magnetic coating which consists essentially of a dispersion of a finely divided magnetic pigment and at least one lubricant in an organic binder. The lubricant is a compound of the formula ##STR1## IN WHICH N IS AN INTEGER OF FROM 3 TO 8 AND R.sup.1 and R.sup.2 are an alkoxy or aralkoxy radical or conjointly are an alkyldioxy radical of 3 to 18 carbon atoms. A magnetic recording tape prepared with a high proportion of such a lubricant is distinguished by high abrasion resistance coupled with a minimum transfer of material to the magnetic heads even under fluctuating climatic conditions.