Verfahren zur Herstellung eines Schleifbands.

摘要

A process for manufacturing an abrasive tape comprising the steps of preparing a coating solution by mixing, as main constituents, abrasive grains, a binder, and a solvent, applying this coating solution on a substrate and drying the coating, and curing the binder, wherein the binder used in preparation of the tape as its essential components either: I. (a) a polymer having repeating units of the formula and having a number average molecular weight of 1,000 to 5,000 (b) a polyester resin containing in its molecule a condensate of an aromatic dicarboxylic acid and/or an aliphatic dicarboxylic acid and an aliphatic diol and having a number average molecular weight of 10,000 to 30,000 terminal OH groups and a glass transition point (Tg) of -20 DEG C to 40 DEG C, and (c) a polyfunctional isocyanate or II. (a) a polymer having repeating units of the formula (b) a polyurethane resin having a number average molecular weight between 5,000 and 20,000 and terminal OH groups, and (c) a polyfunctional isocyanate. (d) the component II (a) to II (b) ratio by weight being in the range 10:90 to 40:60.