Liquid cleaner composition for removing polymeric materials from a surface

US5176986A · kind A · utility

Assignee

• BASF SE

Inventors

• Thomas Telser · Weinheim, DE
• Wolfgang Huemmer · Schifferstadt, DE
• Horst Koch · Havelsee, DE
• Karl-Rudolf Kurtz · Heidelberg, DE
• Heinz-Ulrich Werther · Monsheim, DE
• Beinhard Schneider · Bischofswerda, DE

Key dates

• Filing date: May 25, 1989
• Grant date: Jan 5, 1993
• Expiry date: May 25, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/43
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A new liquid cleaner composition is provided for the mild and gentle removal of polymeric materials from sufaces without leaving any residues. The said new cleaner composition is an emulsion of the water-in-oil type comprising an aqueous phase finely dispersed in a continuous phase selected from the group consisting of nonflammable, fire-retardant, high-boiling, and fire-retardant and high-boiling organic phases, the volume ratio of the finely dispersed aqueous phase to the continuous organic phase being in the range of from 90:10 to 10:90. The new liquid cleaner composition can contain alcohols, surface-active agents and further useful additives. The new liquid cleaner composition is most preferably used in the process for preparing photopolymerized flexographic relief printing plates as the developer for washing out the non-irradiated and thus non-photopolymerized areas of the imagewise irradiated relief-forming recording layers of the said flexographic relief printing plates.