Coated abrasive aggregates and products containg same

摘要

Abrasive aggregates and fixed abrasive articles comprising formaldehyde-free polymer binder and a plurality of abrasive grains are provided that are particularly suitable for machining operations, in which abrasion is carried out to remove material and improve surface quality. Certain embodiments combine an abrasive grain, which can be in the form of microparticles, and a formaldehyde-free polymer binder, which can be in the form of a polymer resin and cross-linking agent. Optionally, the abrasive aggregate can contain a secondary cross-linking agent, or a functional filler, such as a grinding aid.

主权项

1. An aggregate forming mixture comprising:
about 80.0 to about 99.0 wt. % of a plurality of microparticle abrasive grains; and about 20.0 to about 1.0 wt. % of a formaldehyde-free polymer resin dispersion, wherein the formaldehyde-free polymer resin dispersion comprises a waterborne polymer resin dispersion, and wherein the waterborne polymer resin dispersion comprises a starch grafted resin.