Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Radiation sensitive composition or product or process of making
Reexamination Certificate
2008-03-14
2011-10-25
Kelly, Cynthia (Department: 1722)
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Radiation sensitive composition or product or process of making
C430S138000, C430S271100, C430S302000, C101S463100
Reexamination Certificate
active
08043787
ABSTRACT:
Negative-working imageable elements are prepared with radiation-sensitive imageable layers that contain surface-modified silica particles such as fumed silica particles and sol-gel silica particles, that are present in an amount of from about 1 to about 40 weight %, have an average particle size of from about 1 to about 500 nm, have surface hydroxy groups, and have a carbon content of from about 0.5 to about 15 weight % that is derived from surface hydrophobic groups having 1 to 30 carbon atoms. The presence of the surface-modified silica particles provides improved abrasion resistance, reduced tackiness, and various other desired properties.
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Baumann Harald
Dwars Udo
Hauck Gerhard
Savariar-Hauck Celin
Simpson Christopher D.
Eastman Kodak Company
Kelly Cynthia
Robinson Chanceity
Tucker J. Lanny
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