Abrasive article having a line of weakness

A technology of products and grinding discs, applied in abrasives, manufacturing tools, laser welding equipment, etc., can solve the problems of expensive and difficult to obtain other products, and achieve the effect of easy distribution and economical production

Active Publication Date: 2012-05-30
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, some manufacturers have focused on making only the most widely used form of coated abrasive articles, with the result that other products are difficult to obtain and / or relatively expensive

Method used

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  • Abrasive article having a line of weakness
  • Abrasive article having a line of weakness
  • Abrasive article having a line of weakness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] Figures 1 to 3 The abrasive article 1 shown in is a rectangular coated abrasive sheet. Product 1 comprises a plurality of layers, mainly has (referring to image 3 ) a backing layer 3, an abrasive coating 5 on one side of the backing layer, and an attachment layer 7 on the other side of the backing layer.

[0029] Backing layer 3 comprises any sheet material known to be suitable for use in coated abrasive articles, and may be a multilayer material. Suitable materials include paper, film, cloth and foam of appropriate thickness.

[0030] The abrasive coating 5 comprises any suitable abrasive particles 5A in any suitable resin matrix 5B that acts to bond the particles to the backing layer 3 . Abrasive particles 5A may be of any material and size known to be suitable for use in coated abrasive articles. The resin matrix 5B of the abrasive coating 5 may comprise a conventional make with abrasive grains at least partially embedded therein, and optionally a conventional ...

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Abstract

A coated abrasive article (1) comprises a backing (3) having an abrasive coating (5) on one side, an attachment layer (7) on the other side of the backing, and a line of weakness (9) that does not penetrate the front face of the abrasive coating (5). The line of weakness, which may be formed using a laser beam, comprises a through-cut (11) in the attachment layer (7) and perforations (13) in the backing (3), and permits one part of the abrasive article (1) to be separated from another part. Alternatively, the abrasive article can be used in its original form.

Description

[0001] Cross references to related patent applications [0002] This application claims the benefit of US Provisional Patent Application No. 61 / 237947, filed August 28, 2009, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present invention relates to abrasive articles, and more particularly, to coated abrasive articles, and methods of making such articles. Background technique [0004] A coated abrasive article includes a backing material having an abrasive coating on at least one side. Abrasive coatings generally contain abrasive particles in a resin matrix, and may include one or more layers, that acts to bond the abrasive particles to the backing material. [0005] Coated abrasive articles are available in a variety of forms, including sheets, disks, and tapes. Some coated abrasive articles are intended for hand-held use (including use on hand-held sanding blocks), while others are intended for use on power san...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D11/02B24D7/00B24D3/20B24D11/00
CPCB24D11/001B24D11/008B23K26/38B24D11/02
Inventor 蒂莫西·T·拜尔布兰特·A·默根堡马克·A·斯旺森舍恩·A·舒克内希特查理斯·R·瓦尔德
Owner 3M INNOVATIVE PROPERTIES CO
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