Infrared cured abrasive articles
AssigneesSaint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
InventorXiaorong You
Life of this patent
Estimating the term…
Abstract
An abrasive article includes a polymer binder, an infrared radiation absorbing dye, and abrasive grains. In particular embodiments, the abrasive articles have been at least partially cured using infrared radiation. The abrasive articles of the present invention can include, for example, coated abrasives, structured abrasives, and bonded abrasives. Methods for manufacturing abrasive articles include at least partially curing an article that includes a polymer binder precursor, an infrared radiation absorbing dye, and abrasive grains using infrared radiation.
Claims21
An abrasive article comprising:
- a backing;
- abrasive grains;
- a polymer binder;
- and
- about 0.0000001 weight percent to about 0.01 weight percent based on the weight of the polymer binder of an infrared radiation absorbing dye,
- wherein the polymer binder, the infrared radiation absorbing dye, and the abrasive grains are disposed over the backing, and
- wherein the infrared radiation absorbing dye is selected from the group consisting of cyanine dyes, croconium dyes, metal phthalocyanine dyes, metalated azo dyes, metalated indoaniline dyes, amminium dyes, metal complex dyes, and combinations thereof having a peak absorption intensity in the infrared radiation spectrum within a wavelength of about 0.7 to 1.3 microns and an absorption intensity at all wavelengths in the non-infrared spectrum of less than about fifty percent (50%) of the peak absorption intensity within the infrared spectrum.
An abrasive article formed by the method of:
- disposing a polymer binder precursor, an infrared radiation absorbing dye, and abrasive grains on a backing to form an article;
- and
- at least partially curing the article using infrared radiation having a wavelength of about 0.7 to 1.3 microns to form an abrasive article,
- wherein the concentration of the infrared radiation absorbing dye is about 0.0000001 weight percent to about 0.01 weight percent based on the weight of the polymer binder,
- wherein the infrared radiation absorbing dye is selected from the group consisting of cyanine dyes, croconium dyes, metal phthalocyanine dyes, metalated azo dyes, metalated indoaniline dyes, amminium dyes, metal complex dyes, and combinations thereof, having a peak absorption intensity within the infrared radiation spectrum within a wavelength of about 0.7 to 1.3 microns and an absorption intensity at all wavelengths in the non-infrared radiation spectrum of less than about fifty percent (50%) of the peak absorption intensity within the infrared radiation spectrum.
Dependencies are inferred from the claim text.