Patent
Electrically insulating sheathing material
Sanuki Tetsuo,Hirai Masatoshi +1 more
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TLDR
In this paper, a resol-type substd. phenolic resin, an epoxy resin, a solvent, and a dye are compounded to prepare an electrically insulating sheathing material excellent in the resistance to moisture and thermal shock and workability.Abstract:
PURPOSE:To prepare a liq. electrically insulating sheathing material excellent in the resistance to moisture and thermal shock and workability by compounding a specific resol-type substd. phenolic resin, an epoxy resin, a solvent, and a dye. CONSTITUTION:A resol-type substd. phenolic resin obtd. by reacting phenols mainly comprising a substd. phenol of the formula (wherein R1 is H or CH3; and R2 is 1-4C alkyl or 6C aryl) (e.g. cresol) with an aldehyde (e.g. HCHO) in the presence of a nitrogen-contg. catalyst (e.g. NH3), an epoxy resin (e.g. Epikote 1004), a solvent (e.g. a methyl isobutyl ketone/methyl cellosolve mixture), and a dye are compounded.read more
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