Preparation of crosslinked particles from polymers having...

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Ion-exchange polymer or process of preparing

Reexamination Certificate

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C521S029000, C521S077000, C521S134000, C521S139000, C430S270100, C430S296000

Reexamination Certificate

active

06992115

ABSTRACT:
Crosslinked particles are provided that are useful in the manufacture of dielectric materials for use in electronic devices such as integrated circuits. The crosslinked particles are prepared by activating crosslinkable groups on synthetic polymer molecules, where the crosslinkable groups are inert until activated and, when activated, undergo an irreversible intramolecular crosslinking reaction to form crosslinked particles.

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