发明名称 Tela contínua e rolo de material de tratamento de superfície abrasivo não-tecido espesso e material de tratamento de superfície abrasivo
摘要 A longitudinally extending web (30) of lofty nonwoven abrasive surface treatment material is provided in a coreless roll form to the end user. Successive wraps of the nonwoven abrasive material (30) have interengaging surfaces sufficient to maintain the material in a spirally wrapped configuration yet being readily separable. A plurality of longitudinally spaced and laterally disposed perforations (34) through the web (30) permit the user to successively separate the web (30) into a plurality of sheets of abrasive surface treatment material (36). In a preferred embodiment, the roll is encased in a protective shrink wrap sheath, and each sheet (36) is separated from the roll by separating said sheet (36) from an innermost wrap (38) of the roll. In another preferred embodiment, the abrasive surface treatment material includes abrasive particles of 1000 grade or finer. <IMAGE>
申请公布号 BR9609860(A) 申请公布日期 1999.03.16
申请号 BR19969609860 申请日期 1996.08.30
申请人 MINNESOTO MINING AND MANUFACTURING COMPANY 发明人 LOUIS S. MOREN;LAURIE A. WINDISCH;MATHEW C. BARNARD;DOUGLAS S. SPENCER;CHARLIE A. HANF
分类号 A47L13/07;A47L13/17;A47L17/08;B24D3/28;B24D11/00;B24D15/04;B65H18/28;D04H1/42;D04H1/70;D04H13/00 主分类号 A47L13/07
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