Claims
- 1. An abrasive surface treatment material, comprising:a web of lofty nonwoven material including 1000 grade and finer abrasive particles bonded thereto by a binder, wherein the abrasive particle add-on weight is 10-33 grains per 24 in2, wherein the density of the surface treatment material is less than 0.6 grams/in3, and wherein when tested according to the Scratch Test defined herein, provides an Ra of less than 10 microinches and a Bearing Ratio of from 15-50%.
- 2. The abrasive material of claim 1, wherein the abrasive particle add-on weight is 10-20 grains per 24 in2.
- 3. The abrasive material of claim 1, wherein when tested according to the Scratch Test defined herein, provides an Ra of less than 10 microinches and a Bearing Ratio of from 15-40%.
- 4. A longitudinally extending web of lofty nonwoven abrasive surface treatment material comprising the abrasive surface treatment material of claim 1, and further comprising:a plurality of longitudinally spaced and laterally disposed weakened areas across the web to permit a user to readily and successively separate the web into a plurality of sheets of abrasive surface treatment material.
- 5. The web of claim 4 wherein each weakened area is defined by perforations formed through the web.
- 6. The web of claim 4, wherein the web is wrapped spirally about itself to form a roll of abrasive surface treatment material.
- 7. A roll of lofty nonwoven abrasive surface treatment material of claim 1, comprising:the roll being self-binding with successive wraps of the nonwoven material having opposed surfaces which interengage sufficiently to maintain the nonwoven material in a spirally wrapped configuration, yet are disengageable to permit unwinding of material from the roll.
- 8. The roll of claim 7 wherein the roll is coreless.
- 9. The roll of claim 8, and further comprising:a protective sheath disposed about an outermost wrap of the roll.
- 10. The roll of claim 7 wherein the roll of nonwoven material has a plurality of longitudinally spaced and laterally disposed weakened areas therealong to permit a user to readily and successively separate the nonwoven material into a plurality of separate sheets.
- 11. A roll of lofty nonwoven abrasive surface treatment material of claim 1 that is spirally wrapped about a central axis into a roll, comprising:successive wraps of the nonwoven material having interengaging surfaces sufficient to maintain the material in a spirally wrapped configuration, yet being readily separable; and a plurality of longitudinally spaced and laterally disposed weakened areas across the nonwoven material, thereby defining a plurality of readily separable abrasive surface treatment material sections along the web.
- 12. The roll of claim 11 wherein each the weakened area is defined by perforations formed through the web.
- 13. The roll of claim 11 wherein the roll is coreless.
- 14. The roll of claim 11, and further comprising:a protective sheath disposed about an outermost wrap of the roll.
- 15. An abrasive surface treatment material, comprising:a web of lofty nonwoven material including 1000 grade and finer abrasive particles bonded thereto by a binder, wherein the abrasive particle add-on weight is 10-20 grains per 24 in2, wherein the density of the surface treatment material is less than 0.6 grams/in3, and wherein when tested according to the Scratch Test defined herein, provides an Ra of less than 10 microinches and a Bearing Ratio of from 15-50%.
- 16. A longitudinally extending web of lofty nonwoven abrasive surface treatment material comprising the abrasive surface treatment material of claim 15, and further comprising:a plurality of longitudinally spaced and laterally disposed weakened areas across the web to permit a user to readily and successively separate the web into a plurality of sheets of abrasive surface treatment material.
- 17. The web of claim 16, wherein the web is wrapped spirally about itself to form a roll of abrasive surface treatment material.
- 18. A roll of lofty nonwoven abrasive surface treatment material spirally wrapped about a central axis into a roll, comprising:a web of lofty nonwoven material including 1000 grade and finer abrasive particles bonded thereto by a binder, wherein the abrasive particle add-on weight is 10-20 grains per 24 in2, wherein the density of the surface treatment material is less than 0.6 grams/in3, wherein when tested according to the Scratch Test defined herein, provides an Ra of less than 10 microinches and a Bearing Ratio of from 15-50%, wherein successive wraps of the nonwoven material have interengaging surfaces sufficient to maintain the material in a spirally wrapped configuration, yet being readily separable, and including a plurality of longitudinally spaced and laterally disposed weakened areas across the nonwoven material, thereby defining a plurality of readily separable abrasive surface treatment material sections along the web.
CROSS-REFERENCE TO RELATED APPLICATION
This application is a continuation-in-part of U.S. patent application Ser. No. 09/104,871, filed on Jun. 25, 1998, now abandoned, which is a continuation-in-part of U.S. patent application Ser. No. 08/847,551, filed on Apr. 23, 1997, abandoned, which is continuation of U.S. patent application Ser. No. 08/586,102, filed Jan. 16, 1996, abandoned, which is a continuation-in-part of U.S. patent application Ser. No. 08/520,954, filed on Aug. 30, 1995, abandoned.
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Jul 1985 |
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Oct 1988 |
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Non-Patent Literature Citations (6)
Entry |
3M brochure entitled Scotch-Brite™ Surface Conditioning Hand Pads, 3M Abrasive Systems Division, Saint Paul, MN; document No. 61-5000-9159-2(428)ii (Dec. 1991). |
3M brochure entitled Scotch-Brite™ Cutting and Polishing Rolls, 3M Abrasive System Division, Saint Paul, MN; document No. 61-5001-0410-6(42.3)R2 (1992). |
3M brochure entitled 3M Grindline Express Surface Conditioning Products 1993, 3M Abrasive System Division, Saint Paul, MN; document No. 60-4400-2475-4 (33.75)VP, Dec. 1993. |
3M brochure entitled 3M Grindlines Express Coated Abrasive, Surface Conditioning, and Superabrasive Products 1996, 3M Abrasive System Division, Saint Paul, MN; document No. 60-4400-0168-7(1613)VP (1996); published as document No. 60-4400-2475-4(33.75)VP in Dec. 1993. |
3M brochure entitled 3M™ Stikit™ Gold Abrasive Disc Rolls, 3M Automotive Trades Division, Saint Paul, MN; document No. 60-4400-4359-8(634)BE (Dec. 1993). |
3M brochure entitled SKIKIT® Gold and STIKIT™ Green Abrasive Disc Rolls, 3M Automotive Trades Division, Saint Paul, MN; document No. 60-4400-0574-6(120.5)DPI (Dec. 1985). |
Continuations (1)
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Number |
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Parent |
08/586102 |
Jan 1996 |
US |
Child |
08/847551 |
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US |
Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
09/104871 |
Jun 1998 |
US |
Child |
09/447843 |
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US |
Parent |
08/847551 |
Apr 1997 |
US |
Child |
09/104871 |
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US |
Parent |
08/520954 |
Aug 1995 |
US |
Child |
08/586102 |
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US |