Photo-setting and thermosetting resin composition, process...

Details Photo-setting and thermosetting resin composition, process... Photo-setting and thermosetting resin composition, process...

2008-07-08

2008-07-08

Talbot, Brian K (Department: 1792)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

C525S524000

Reexamination Certificate

active

07396885

ABSTRACT:
A photo-setting and thermosetting resin composition comprises (I) a partial adduct of epoxy resin with unsaturated aliphatic acid, (II) (meth)acrylates, (III) a photocrosslinking agent, (IV) liquid epoxy resin, and (V) a latent curing agent. The resin composition can be easily charged and plugged into a through-hole, does not drip down, and can be effectively photo-set and thermoset. A photo-set product prepared of the resin composition can be easily polished. A plugged-through-hole printed wiring (substrate) board prepared of the resin composition does not cause defects such as hollows, cracks, blisters, peelings and so on, is excellent in solder-resistance, does not corrode a metal part, and can produce an appliance of high reliability and long life which does not occur short circuit and poor electrical connection.

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