Thick film getter paste compositions with pre-hydrated...

Details Thick film getter paste compositions with pre-hydrated... Thick film getter paste compositions with pre-hydrated...

2011-05-17

2011-05-17

Anthony, Joseph D (Department: 1761)

Compositions

Getters or gas or vapor generating materials for electric...

C252S181600, C252S181700, C252S194000, C501S014000, C501S015000, C501S016000, C501S017000, C501S021000, C501S032000, C501S077000

Reexamination Certificate

active

07943060

ABSTRACT:
The invention is directed to a process for making screen-printable getter composition comprising: (a) glass frit; and (b) pre-hydrated desiccant material; dispersed in (c) organic medium. The desiccant material is pre-hydrated to reach its saturation level of moisture absorption. The process of pre-hydration can be done by exposing the desiccant in a normal temperature/humidity environment of for example, 25° C. and 50-60% RH. For 24 to 48 hours or up to the time when weight gain (due to moisture absorption) stops increasing. An accelerated hydration process in a chamber with higher than normal humidity level (i.e. 50% Relative Humidity) is also applicable to shorten the time of exposure to fully hydrate the desiccant material.

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