Lubricant sheet and method of forming the same
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United States of America Patent
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N/A
Issued Date -
Jul 10, 2003
app pub date -
Jan 4, 2002
filing date -
Jan 4, 2002
priority date (Note) -
Abandoned
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Abstract
A lubricant sheet for use in drilling holes in a printed circuit board, comprised of a porous, fibrous, organic sheet impregnated with a water-soluble lubricant. The lubricant is comprised essentially of polyethylene glycol having a weight average molecular weight between 4,500 and 7,000, and a surfactant.
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