Patent ID: 8618190
Filing Date: 2013-12-31
Classification: B32B,C09D,Y10T

Abstract:
1. A latex marking ink, comprising: (a) vulcanizable rubber; (b) pigment; (c) water; (d) a vulcanizing agent; and (e) octyl phenol ethoxylate comprising an average of about 35 moles of ethoxylation and present in an amount from about 0.1 to about 5 weight percent of the ink, wherein shear stability of the ink is greater than three times shear stability of the ink without the octyl phenol ethoxylate as determined by ASTM D1076, and wherein the vulcanizable rubber is present in an amount from about 55 to about 75 weight percent of the ink, the pigment is present in an amount from about 10 to about 20 weight percent of the ink, the vulcanizing agent is present in amount ranging from about 0.2 to about 4.0 weight percent of the ink, and the water is present in an amount ranging from about 5 to about 25 weight percent of the ink.