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Composite abrasive bodies

a technology of composite abrasives and abrasives, which is applied in the direction of abrasive devices, grinding devices, other chemical processes, etc., can solve the problems of increased production process costs, long curing times, and epoxy adhesives, and achieves fast working times and quick bonding

Inactive Publication Date: 2011-02-03
SIKA TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0009]Therefore, an aim of the present disclosure is to provide composite abrasive bodies that can be produced in a way that avoids the disadvantages of the prior art.
[0011]The novel composite abrasive bodies of embodiments may overcome the disadvantages of the prior art by the use of a two-component polyurethane or (meth)acrylate adhesive. Two-component polyurethane or (meth)acrylate adhesives cure extremely rapidly and in particular enable rapid bonding even at room temperature. This enables fast working times and energy-saving industrial mass production of these composite abrasive bodies.

Problems solved by technology

Epoxy adhesives have the disadvantage that they either have very long curing times or must be cured by heat.
As a result, long holding times and / or high energy costs for curing are required for efficient mass production, which means increased costs for the production process.

Method used

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Embodiment Construction

[0027]The present disclosure relates, in exemplary embodiments, to a composite abrasive body including at least one abrasive product support, at least one abrasive product, as well as at least one cured two-component polyurethane or (meth)acrylate adhesive bonding the abrasive product support and the abrasive product to each other. Abrasive particles may also be present on the surface of the abrasive product.

[0028]Herein, the term “(meth)acrylate” refers to acrylic acid esters and methacrylic acid esters.

[0029]The present disclosure also relates, in exemplary embodiments, to the use of a two-component (meth)acrylate adhesive in the fabrication of composite abrasive bodies. The two-component (meth)acrylate adhesive includes a first component that contains at least one (meth)acrylate monomer and a second component that contains at least one radical initiator. The two-component (meth)acrylate adhesive may be used to bond the abrasive product support and the abrasive product together.

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Abstract

Composite abrasive bodies, which include abrasive product supports, abrasive particles and cured adhesives bonding the abrasive product supports and the abrasive products, are provided. The cured adhesives may be two-component polyurethane or (meth)acrylate adhesives. In addition, methods for preparing the composite abrasive bodies are also provided.

Description

[0001]This is a Division of Application No. application Ser. No. 11 / 896,573, filed Sept. 4, 2007, which is a Continuation of application Ser. No. 10 / 580,531, filed May 25, 2006, which is a National Phase of PCT / EP2004 / 053097 filed Nov. 25, 2004, which claims priority to European Patent Application No. 03027086.2 filed Nov. 25, 2003. The disclosure of the prior applications is hereby incorporated by reference herein in their entirety.BACKGROUND[0002]1. Technical Field[0003]This disclosure relates to fabrication of composite abrasive bodies.[0004]2. Prior Art[0005]Abrasive products have been used for a long time for machining materials. Abrasive products consist of, inter alia, abradant granular particles that are fixed to a backing material by means of a binder.[0006]DE 198 53 550 C1 describes an abrasive flap disc in which abrasive grains are dispersed on a base bonding coat that is applied to a backing.[0007]U.S. Pat. No. 5,722,881 describes use of epoxies for bonding abrasive flap...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B24D13/04B24D3/28B24D7/18B24D13/06B24D18/00
CPCB24D18/0072B24D13/06
Inventor LINNENBRINK, MARTIN
Owner SIKA TECH AG