Patent ID: 7438829

Claim:
A screen-printable getter composition consisting of: (a) hygroscopic glass frit comprising Bi 2 O 3 and 0.8-30 wt % Al 2 O 3 dispersed in (b) organic medium comprising an organic polymeric binder and a volatile organic solvent, wherein the organic polymeric binder is selected from the group consisting of ethyl cellulose, ethylhydroxyethyl cellulose, wood rosin, mixtures of ethyl cellulose and phenolic resins, polymethacrylates of lower alcohols, monobutyl ether of ethylene glycol monoacetate, and mixtures thereof and wherein the volatile organic solvent is selected from the group consisting of ethyl acetate, terpenes, kerosene, dibutylphthalate, butyl carbitol, butyl carbitol acetate, hexylene glycol, high boiling alcohols, alcohol esters, and mixtures thereof.