초록 ▼

Abrasive articles and a method for the manufacture of the articles are described. The articles comprise a backing having a first major surface and a second major surface; a first resin layer comprising a first hardened resin, the first resin layer extending over the first major surface of the backin

Abrasive articles and a method for the manufacture of the articles are described. The articles comprise a backing having a first major surface and a second major surface; a first resin layer comprising a first hardened resin, the first resin layer extending over the first major surface of the backing; abrasive particles adhered within the first resin layer; a second resin layer applied over the first resin layer, the second resin layer comprising a second hardened resin; and a lofty, three dimensional, nonwoven web of fibers bonded to one another at their mutual contact points and extending through the first and second resin layers. The dry coating weights of the first and second hardened resins are about 400 g/m.sup.2 or greater and preferably greater than about 600 g/m.sup.2.

대표청구항 ▼

[ We claim:] [1.] An abrasive article, comprising:a backing having a first major surface and a second major surface;a first resin layer comprising a first hardened resin having a dry coating weight of about 400 g/m.sup.2 or greater, the first resin layer extending over the first major surface of the

[ We claim:] [1.] An abrasive article, comprising:a backing having a first major surface and a second major surface;a first resin layer comprising a first hardened resin having a dry coating weight of about 400 g/m.sup.2 or greater, the first resin layer extending over the first major surface of the backing, wherein the first hardened resin is selected from the group consisting of phenolic resins, aminoplast resins having pendant .alpha.,.beta.-unsaturated carbonyl groups, urethane resins, epoxy resins, ethylenically unsaturated resins, acrylated isocyanurate resins, urea-formaldehyde resins, isocyanurate resins, acrylated urethane resins, acrylated epoxy resins, bismaleimide resins, epoxy resins having fluorine substituent groups, and combinations thereof;abrasive particles adhered within the first resin layer;a second resin layer applied over the first resin layer having a dry coating weight of about 400 g/m.sup.2 or greater, the second resin layer comprising a second hardened resin, wherein the second resin comprises a flexible material selected from the group consisting of polyurethanes, polyureas, styrene-butadiene rubbers, nitrile rubbers, polyisoprene, and combinations of the foregoing materials; anda lofty, three dimensional, nonwoven web of fibers bonded to one another at their mutual contact points and extending through the first and second hardened resin layers, wherein the first and second resin layers substantially penetrate and fill the nonwoven web of fibers that extend through the resin layers.