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Coated abrasive articles

An abrasive product and coating technology, applied in abrasives, grinding devices, manufacturing tools, etc., to reduce the amount of raw materials and enhance flexibility

Active Publication Date: 2013-05-01
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similar effects also occur when abrasive articles are stored in a humid environment

Method used

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  • Coated abrasive articles
  • Coated abrasive articles
  • Coated abrasive articles

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0148] The stencil was taped to the screen frame of a screen printing machine (model "AT-1200H / E", obtained from ATMA Champ Ent. Corp., Taipei, Taiwan) middle. A 12 inch by 20 inch (30.48 by 50.8 cm) piece of CWT paper was taped to the press backing plate and the plate was secured in registration in the screen printer. Approximately 75 grams of phenolic primer was applied to the stencil at 70°F (21.1°C) using a urethane squeegee, and the stencil was printed onto a paper backing. The backing board and coated paper assembly was immediately removed from the screen printing machine. Mineral GC-80 was electrostatically applied to the phenolic primer resin using a powder coater (model "EASY01-F / 02-F" from ITW Gema, St. Gallen, Switzerland), and cured in an oven at 230°F (110°C) for 30 minutes. Meanwhile, clean the stencil with ethanol-soaked paper towels. The backing board and coated paper assembly was removed from the oven and allowed to cool. Excess minerals are removed by li...

example 2

[0150] The general procedure as described in Example 1 was repeated with the GC-80 abrasive mineral replaced by F150X.

example 3

[0152] The stencil was taped into the frame of a mini screen printer (APR Novastar, LLC, Huntington Valley, Pennsylvania). A 12 inch by 20 inch (30.48 by 50.8 cm) piece of CWT paper was taped to a metal plate set on the press backing plate and the plate was secured in registration within the screen printer. Approximately 35 grams of an acrylic primer was applied to the stencil at 70°F (21.1°C) using a urethane squeegee, and the stencil was printed onto a paper backing. The backing board and coated paper assembly was immediately removed from the screen printing machine. Mineral GC-80 was electrostatically applied to the acrylate primer resin using a powder coater and passed through a UV treater (available from American Ultraviolet Company, Murray Hill, New Jersey) in two passes. Jersey) was cured using a series of two D-type bulbs operating at 400 W / inch (157.5 W / cm) and a web speed of 40 ft / min (12.19 m / min)) and allowed to cool. Meanwhile, clean the stencil with ethanol-soa...

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Abstract

Provided are abrasive articles in which the make layer, abrasive particle layer, and size layer are coated onto a backing according to a pre-determined coating pattern. All three components are generally in registration with each other, thereby providing a pervasive uncoated area extending across the backing. Advantageously, this configuration provides a coated abrasive that displays superior curl-resistance compared with previously disclosed abrasive articles. Moreover, this configuration resists loading, resists de-lamination, has enhanced flexibility, and decreases the quantity of raw materials required to achieve the same level of performance as conventional abrasive articles.

Description

technical field [0001] Coated abrasive articles and methods of making the same are provided. More specifically, coated abrasive articles having a patterned coating and methods of making the same are provided. Background technique [0002] Coated abrasive articles are often used in grinding, grinding and polishing operations in commercial and industrial applications. These operations are carried out on a wide variety of substrates, including wood, wood-like materials, plastics, fiberglass, soft metals, glazed surfaces and painted surfaces. Some coated abrasives can be used wet or dry. In wet environments, general applications include filler sanding, putty sanding, primer sanding and paint finishing. [0003] Typically, these abrasive articles include a paper or polymeric backing to which abrasive grains are attached. The abrasive particles may be attached using one or more strong and resilient binders to secure the particles to the backing during grinding operations. Dur...

Claims

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Application Information

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IPC IPC(8): B24D11/00B24D18/00
CPCB24D3/28B24D11/001B24D18/0072B24D18/00
Inventor 德博拉·J·爱勒斯杰弗里·R·詹森查尔斯·R·沃尔德克里斯托弗·J·李舍恩·A·舒克内希特
Owner 3M INNOVATIVE PROPERTIES CO
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