Coated abrasive binder containing ternary photoinitiator system

Details Coated abrasive binder containing ternary photoinitiator system Coated abrasive binder containing ternary photoinitiator system

1988-02-18

1989-05-09

Clingman, A. Lionel

Abrasive tool making process, material, or composition

Impregnating or coating an abrasive tool

51293, 51298, 430332, B24D 1100

Patent

active

048285838

ABSTRACT:
Coated abrasive binders made from a photocurable addition-polymerizable composition containing a free-radically-polymerizable monomer and a photoinitiator system containing (i) an arylidonium salt, (ii) a sensitizing compound, and (iii) an electron donor having an oxidation potential that is greater than zero and less than or equal to that of p-dimethyoxybenzene (1.32 volts vs. S.C.E.). The binders cure rapidly and deeply under ultraviolet or visible light, even when filled with large amounts of mineral grain or with coarse grades of minerals.

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