US 4,789,590 A · Abrasive tape

Abstract

An abrasive tape comprises a flexible substrate, and an abrasive layer overlaid on the flexible substrate by applying an abrasive coating composition prepared by use of abrasive grains and a binder onto the flexible substrate and drying the applied abrasive coating composition. The binder contains a vinyl chloride resin having a --SO.sub.3 M group, where M represents Li, Na or K, and an epoxy group, a resin having, at a side chain thereof, at least one polar group selected from the group consisting of --SO.sub.3 M, --OSO.sub.2 M, --OSO.sub.3 M, --COOM, and ##STR1## where M represents H, Li, Na or K, M.sub.1 represents H, Li, Na, K or an alkyl group, and M.sub.2 represents H, Li, Na, K or an alkyl group, and a polyisocyanate.

Claims29

Dependent claims

An abrasive tape comprising a flexible substrate, and an abrasive layer overlaid on said flexible substrate by applying an abrasive coating composition prepared by use of abrasive grains and a binder onto said flexible substrate and drying the applied abrasive coating composition,

wherein the improvement comprises the use of, as said binder:
(i) a vinyl chloride resin having a --SO.sub.3 M group, where M represents Li, Na or K, and an epoxy group,
(ii) a resin having, at a side chain thereof, at least one polar group selected from the group consisting of
--SO.sub.3 M, --OSO.sub.2 M, --OSO.sub.3 M, --COOM, and ##STR8## where M represents H, Li, Na or K, M.sub.1 represents H, Li, Na, K or an alkyl group, and M.sub.2 represents H, Li, Na, K or an alkyl group, and
(iii) a polyisocyanate.

2 more elements

Dependencies are inferred from the claim text.

Abrasive tape

Life of this patent

Abrasive tape

Life of this patent

Abstract

Claims29