Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-08-27
1998-11-10
Gulakowski, Randy
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525523, 525534, 523400, 549541, C08F28300
Patent
active
058345701
ABSTRACT:
An epoxy resin composition of this invention is obtained by solidifying epoxy resins represented by the following general formula (1) (wherein G is glycidyl group and R.sup.1 to R.sup.8 are hydrogen atoms, halogen atoms or hydrocarbon groups with 1 to 6 carbon atoms, and n is an integer of 0 to 10) by crystallization and adding epoxy resin curing agents to the resulting solid. It shows good flow and low moisture absorption, cures with excellent heat resistance at soldering temperature and is useful for a variety of applications, in particular, for encapsulating semiconductor devices. ##STR1##
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Aramaki Takanori
Kaji Masashi
Nagino Hisayuki
Nakahara Kazuhiko
Gulakowski Randy
Nippon Steel Chemical Co. Ltd.
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