发明名称 |
SANDING SPONGE WITH HIGH TEAR STRENGTH BACKING LAYER |
摘要 |
A resilient flexible sanding sponge (20) including a foam backing layer (22) having a layer of abrasive particles (26) distributed alo ng one of its major surfaces (24) that are adhered together and to the backing layer by a layer of flexible adhesive material. That high tear strength backing layer can either be (1) a layer of felted urethane foam; or (2) a layer of foam that encompasses a reinforcing material (30). When the backing layer is of felted urethane foam the layer of flexible adhesive material (28) can have a major structurally sound portion below the surface along which the layer of abrasive particles is positioned and a minor portion adhering the abrasiv e particles along that surface to leave large portions of the abrasive particl es projecting above the layer of adhesive material where they can effectively abrade a surface over which the sanding sponge is rubbed.
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申请公布号 |
CA2391281(C) |
申请公布日期 |
2009.09.29 |
申请号 |
CA20002391281 |
申请日期 |
2000.11.14 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
LISE, JONATHAN M.;MINICK, CHRIS A. |
分类号 |
B24D3/32;B24D3/00;B24D11/02;B24D15/04 |
主分类号 |
B24D3/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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