Preliminary-cured material, roughened preliminary-cured material, and laminated body
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United States of America Patent
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Sep 1, 2015
Grant Date -
May 2, 2013
app pub date -
Mar 31, 2011
filing date -
Mar 31, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A preliminary-cured material permits reduced surface roughness of a roughening-treated surface, and increase of an adhesive strength between a cured object and a metal layer. The preliminary-cured material is obtained by advancing curing of an epoxy resin material that contains an epoxy resin, a curing agent, and a silica. The preliminary-cured material includes a first principal surface to be roughening-treated, and a second principal surface. The silica includes a first small particle-diameter silica whose particle diameter is not smaller than 0.01 μm but smaller than 0.5 μm, and a second large particle-diameter silica whose particle diameter is not smaller than 0.5 μm but not larger than 20 μm. The first small particle-diameter silica is localized to exist in large quantity on a side of the first principal surface, and the second large particle-diameter silica is localized to exist in large quantity on a side of the second principal surface.
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International Classification(s)
- C08J:WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTE....
- C08G:MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN B....
- G11B:INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BET....
- C08L:COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- B32B:LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA....
- C08K:USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUB....
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