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Coated abrasive article with tie layer, and method of making and using the same

A technology of abrasive products and bonding layers, which is applied in the direction of abrasives, manufacturing tools, metal processing equipment, etc., and can solve problems such as performance damage

Inactive Publication Date: 2007-05-23
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Shedding is undesirable in most cases as performance will suffer

Method used

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  • Coated abrasive article with tie layer, and method of making and using the same
  • Coated abrasive article with tie layer, and method of making and using the same
  • Coated abrasive article with tie layer, and method of making and using the same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0047] Methods for the preparation of these oligomers are well known in the art and a variety of useful free radically polymerizable oligomers are commercially available. Examples include: aliphatic and aromatic urethane (meth)acrylate oligomers such as those available from UCBChemicals, Smyrna, Georgia, USA (trade names "EBECRYL 270", "EBECRYL 8804", "EBECRYL 8807" , "EBECRYL 4827", "EBECRYL 6700", "EBECRYL 5129" or "EBECRYL 8402"), and available from Sartomer Corporation, Exton, Pennsylvania, USA (trade names "CN 1963", "CN934", "CN 953B70", "CN 984", "CN 962", "CN 964", "CN 965", "CN 972" and "CN 978"); polyester (meth)acrylate oligomers, such as Available from UCB Chemicals (trade names "EBECRYL 80", "EBECRYL 81", "EBECRYL 657", "EBECRYL 810", "EBECRYL 450", "EBECRYL 870" or "EBECRYL 2870"), and available from Sand Dormer Company (trade name "CN 292"); polyether (meth)acrylate oligomers, such as available from Sartomer Company (trade name "CN 501", "CN 502", "CN 550 " an...

Embodiment 1-25

[0101] Tie layer precursors were prepared following the general procedure for preparing tie layer precursors as shown in Table 1. The tie layer precursor was then coated on the backing as shown and cured to form the tie layer following the general procedure for making backings with tie layers. An abrasive layer is then applied to the bond layer. The resulting coated abrasive articles were subjected to a 90° peel adhesion test. In Table 1, the coated abrasive articles failed over the range of the coated abrasive.

[0102] Example

[0103] *Abrasives and bonding layers adhere to the film beyond the internal strength of the film, causing the film to tear.

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Abstract

Coated abrasive articles have a tie layer that is preparable by at least partially polymerizing an isotropic polymerizable composition comprising a polyfunctional aziridine, an acidic free-radically polymerizable monomer, and an oligomer having at least two pendant free-radically polymerizable groups, wherein homopolymerization of the oligomer results in a polymer having a glass transition temperature of less than 50 degrees Celsius.

Description

Background technique [0001] Generally, coated abrasive articles have abrasive particles secured to a backing. More commonly, coated abrasive articles have a backing having two opposing major surfaces and an abrasive layer affixed to one of the major surfaces. Abrasive layers typically contain abrasive grains and a binder, where the binder is used to secure the abrasive grains to the backing. [0002] One common type of coated abrasive article has an abrasive layer with a make layer, a size layer, and abrasive grains. In making such a coated abrasive article, a primer layer comprising a first binder precursor is applied to the major surface of the backing. The abrasive particles are then at least partially embedded in the primer layer (eg, by electrostatic coating), and the first binder precursor is cured (ie, crosslinked) to secure the particles to the primer layer. A topcoat layer comprising a second binder precursor is then applied over the primer layer and abrasive grain...

Claims

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Application Information

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IPC IPC(8): B24D3/00B24D11/00B24D99/00
CPCB24D3/004B24D11/001B24D3/28
Inventor 史蒂文·J·凯佩特欧内斯特·L·瑟伯唐·H·金凯德罗纳德·D·普罗沃
Owner 3M INNOVATIVE PROPERTIES CO
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