Enhanced radiation cure
AssigneeNorton Company
InventorsAnthony C. Gaeta, Gwo Shin Swei
Life of this patent
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Abstract
Production of a finished fabric backing for use in the production of a coated abrasive is performed using a dual cure system comprising a radiation curable binder and a thermal initiator in which polymerization is initiated by the use of radiation until the exotherm produced raises the temperature of the formulation to the activation temperature of the thermal initiator. Thereafter the polymerization continues under the influence of the thermal initiator alone.
Claims5
A cloth-finishing formulation that is stable under ambient conditions comprising from 25 to 60% by weight, based on the formulation weight of a filler and from 40 to 75% by weight, based on the formulation weight of a binder material which comprises a radiation-polymerizable compound and from 0.1 to 5% by binder material weight of a thermal initiator for the polymerization of the compound which is activated at temperatures above about 25° C. but below the temperatures reached during the radiation-induced polymerization.
Dependencies are inferred from the claim text.