Printing face formulary
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United States of America Patent
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N/A
Issued Date -
Jun 5, 2003
app pub date -
Mar 20, 2002
filing date -
Jul 10, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a printing face layer for printing blankets which is the product of vulcanization of nitrile rubber with between 38% to about 45% by weight acrylonitrile; a particulate filler at between about 5 pph to about 50 pph; a coupling agent at a quantity of between about 0.5 to about 6 pph; at least one wettability modifier in an amount sufficient to increase the hydrophilicity of the printing face layer; a factice at about 5 to about 40 pph; sulfur at about 0.5 to about 3 pph; a primary accelerator at about 0.1 to about 4 pph; and zinc oxide at between about 2.5 to about 30 pph. Advantageously the printing face formulation also contains phenol formaldehyde resins, stabilizers such as antioxidants, UV protectors, antiozonants, and the like, and also includes resins and fatty acids.
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