Pore inducer and porous abrasive form made using the same

Patent metadata

Field	Value
Publication number	US-11795287-B2
Application number	US-202117304653-A
Country	US
Kind code	B2
Filing date	Jun 24, 2021
Priority date	May 20, 2016
Publication date	Oct 24, 2023
Grant date	Oct 24, 2023

Abstract

Various embodiments disclosed relate to pore inducers and porous abrasive forms made using the same. In various embodiments, the present invention provides a method of forming a porous abrasive form including heating an abrasive composition including pore inducers to form the porous abrasive form. During the heating the pore inducers in the porous abrasive form reduce in volume to form induced pores in the porous abrasive form.

First claim

What is claimed is:

1. A method of forming a porous abrasive form, the method comprising:
heating an abrasive composition to form the porous abrasive form, the abrasive composition comprising a plurality of pore inducers, the plurality of pore inducers having a pore inducer composition that comprises gamma-pyrone, the plurality of pore inducers each having a 3D geometric shape and a size, wherein the plurality of pore inducers have the same 3D geometric shape and size; and
wherein during the heating the pore inducers in the porous abrasive form reduce in volume to form induced pores in the porous abrasive form, wherein the induced pores substantially correspond in shape and location to that of the pore inducers in the abrasive composition prior to the heating.

2. The method of claim 1 , further comprising forming the abrasive composition.

3. The method of claim 1 , further comprising forming the plurality of pore inducers.

4. The method of claim 3 , wherein forming the pore inducers further comprises placing a pore inducer starting material composition in a mold, curing the pore inducer starting material composition in the mold, and removing the pore inducers from the mold after the curing.

5. The method of claim 1 , wherein the induced pores approximately correspond in size to that of the pore inducers in the abrasive composition prior to the heating.

6. The method of claim 1 , wherein the heating comprising vitrifying, wherein the porous abrasive form comprises a porous vitrified abrasive form.

7. The method of claim 1 , wherein the pore inducers are about 0.001 wt % to about 50 wt % of the abrasive composition.

8. The method of claim 1 , wherein the abrasive composition, further comprises a secondary pore inducer.

Assignees

• 3M Innovative Properties Company

Inventors

• Goers Brian D
• Lukowski Mark A
• Flaschberger Walter
• Thurber Ernest L
• Gozum John E

Classifications

• C08J9/26 Primary

  by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out · CPC title

• B24D3/10

  for porous or cellular structure, e.g. for use with diamonds as abrasives · CPC title

• B24D3/18 Primary

  for porous or cellular structure · CPC title

• B24D3/32

  for porous or cellular structure · CPC title

• B24D18/00

  Manufacture of grinding tools {or other grinding devices}, e.g. wheels, not otherwise provided for · CPC title