Thermosetting binder for an abrasive article

Details Thermosetting binder for an abrasive article Thermosetting binder for an abrasive article

B - Operations, Transporting

24

D

B24D 3/28 (2006.01) C08G 59/02 (2006.01)

Patent

CA 2117644

The invention relates to an abrasive article comprising: (a) a plurality of abrasive grains; and (b) at least one binder for the abrasive grains, wherein the binder comprises a cured precursor, wherein the precursor comprises: (i) optionally an epoxy resin; (ii) optionally a modifying component selected from the group consisting of modifying components of general formula (I) wherein X represents an epoxy group; R comprises a divalent linking group selected from the group consisting of polycyclic aryls, cyclic alkyls, and polycyclic alkyls; and R1 is independently selected from the group consisting of hydrogen and other groups substantially inert to polymerization of epoxide group containing compounds; (iii) optionally a modifying component selected from the group consisting of general formula (I) wherein X represents -YH; Y is independently selected from the group consisting of -NH-, NCH3-, -O-, -S-, and -COO-; R comprises a divalent linking group selected from the group consisting of polycyclic aryls, cyclic alkyls, and polycyclic alkyls; and R1 is independently selected from the group consisting of hydrogen and other groups substantially inert to polymerization of epoxide group containing compounds; (iv) optionally a curing agent, wherein said precursor comprises one of the following combination of components selected from the group consisting of: (i), (iii), and (iv); (i), (ii), (iii), and (iv); (i), (ii), and (iii); (i), (ii), and (iv); (i) and (iii); (ii), (iii), and (iv); (ii) and (iii); and (ii) and (iv); wherein the epoxy resin of element (b)(i) is defined such that it does not include the modifying component of element (b)(ii), and wherein the curing agent of element (b)(iv) is defined such that is does not include the modifying component of element (b)(iii).

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