E.i. Dupont De Nemours and Company

Other

E. I. Du Pont Nemours and Co.

Christopher John Roach

Che-Hsiung Hsu

Alan Frederick Carroll

Carl Baasun Wang

Fong-Pei Chang

Haixin Yang

Michael F Barker

John Graeme Pepin

Cherng Y Wang

Vincent Wen-Yuan Yeh

Pedro A Jimenez

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&#xb0; 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.

Thick film getter paste compositions with pre-hydrated desiccant for use in atmosphere control

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 present invention further relates to a getter composition utilizing low-softening temperature glasses comprising, based on weight %, 1-50% SiO, 0-80% BO, 0-90% BiO, 0-90% PbO, 0-90% PO, 0-60% LiO, 0-30% AlO, 0-10% KO, 0-10% NaO, and 0-30% MO where M is selected from Ba, Sr, Ca, Zn, Cu, Mg and mixtures thereof. The glasses described herein may contain several other oxide constituents that can substitute glass network-forming elements or modify glass structure. 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&#xb0; 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.

The invention is directed to a process and more particularly, to utilizing polymer solutions to make thick film compositions. In one embodiment the process is directed to the formation of photoimageable thick film compositions for use in photo-patterning methods to make photoimageable electrodes in flat panel display applications, including plasma display panels (PDP). Polymer solutions are obtained by directly polymerizing desired monomers in a desired solvent to form a desired polymer, rather than by dissolving a pre-made polymer in a desired solvent. Other ingredients are added to the polymer solution to directly form thick film pastes, including photoimageable thick film pastes.

Polymer solutions, aqueous developable thick film compositions, processes of making and electrodes formed thereof

This invention is directed to a process for the fabrication of features on a silicon wafer utilizing ribbons comprising organic polymer and inorganic material.

Fibers and ribbons for use in the manufacture of solar cells

This invention is directed to a process for the fabrication of features on a display panel utilizing fibers or ribbons comprising organic polymer and inorganic material, the inorganic material containing phosphoe, conductrice metals or dielectric particles.

Fibers and ribbons containing phosphor, conductive metals or dielectric particles for use in the manufacture of flat panel displays

This invention is directed to a process for the fabrication of features on a silicon wafer utilizing fibers or ribbons comprising organic polymer and inorganic material.

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Apex, NC, United States of America

Christopher John Roach