FIELD: epoxide compositions. SUBSTANCE: material consisting of glass fabric, epoxy-4,4Т-isopropylidene- diphenol resin, and hardener is distinguished by that hardener is product of condensation of pyromellitic acid dianhydride (1 molar part) and bis(3-hydroxypropyl)tetramethyldisiloxane (0.5-0.66 molar parts), contents of material components being as follows: resin 100, hardener 38.3-55, and glass fabric 330-464.5 weight parts. EFFECT: improved dielectric properties and heat resistance of glass-fiber material. 2 tbl
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Authors
Dates
1999-02-20—Published
1984-04-20—Filed