Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Reexamination Certificate
2005-04-12
2005-04-12
Sellers, Robert (Department: 1712)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C257S793000, C525S407000
Reexamination Certificate
active
06878783
ABSTRACT:
Epoxy resin compositions are disclosed which comprise (A) at least one cycloaliphatic epoxy resin, (B) at least one anhydride curing agent, (C) at least one a boron containing catalyst that is essentially free of halogen, (D) at least one cure modifier, and, optionally (E) at least one ancillary curing catalyst. The encapsulant may also optionally comprise at least one of thermal stabilizers, UV stabilizers, coupling agents, or refractive index modifiers. Also disclosed are packaged solid state devices comprising a package, a chip, and an encapsulant comprising an epoxy resin composition of the invention. A method of encapsulating a solid state device is also provided.
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Rubinsztajn Malgorzata Iwona
Yeager Gary William
General Electric Company
Klindtworth Jason
Patnode Patrick K.
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