Low fuming phenolic resin prepreg and process for producing the same
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United States of America Patent
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Feb 8, 1994
Grant Date -
N/A
app pub date -
Aug 15, 1991
filing date -
Aug 17, 1990
priority date (Note) -
Expired
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Abstract
A low fuming phenolic resin prepreg comprising a fibrous base impregnated with 20 to 60% by weight of a resin composition comprising (a) 100 parts by weight of a resol phenolic resin, (b) from 1.5 to 15 parts by weight of polyacrylamide, (c) from 1.5 to 25 parts by weight of an epoxy resin, and (d) from 1.5 to 15 parts by weight of an inorganic filler, and the method for preparing the prepreg by impregnating a solution of (a), (b) and (c) having dispersed therein the filler into a fibrous base. The method for the prepreg comprising impregnating the fibrous base with the resin composition. The phenolic resin prepreg has low fuming properties as well as excellent self-adhesion.
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