Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Patent
1992-07-29
1994-04-26
Krass, Frederick
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
523466, 525481, 525482, 525507, 528 97, 528153, 549546, 549547, 549559, 568718, 568719, 568720, 568722, 568729, C08G 5900, C08G 804, C08G 1404
Patent
active
053067487
ABSTRACT:
Fluorine-modified thermosetting reins are available as phenolic or epoxy resins having trifluoromethyl groups and a naphthalene skeleton in a molecule. They are useful as components of resin compositions or resin modifiers and cure to products having low water pickup, low coefficient of thermal expansion, and adhesion as well as heat resistance and mechanical strength. Thermosetting resin compositions having such a thermosetting resin blended therein are useful in semiconductor element packaging.
Narumi Manabu
Shimizu Hisashi
Shiobara Toshio
Krass Frederick
Shin-Etsu Chemical Co. , Ltd.
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