Crosslinked polymers
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United States of America Patent
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Nov 10, 1998
Issued Date -
N/A
app pub date -
Oct 29, 1997
filing date -
Dec 20, 1994
priority date (Note) -
Expired
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Abstract
Radiation-sensitive compositions comprising a substance which forms acid under the action of actinic radiation and polymers based on combination of different repeating units derived from hydroxy styrene and hydroxy-vinylcyclohexane derivatives wherein a portion of the hydroxyl groups are replaced with either acid-labile acetal or ketal protecting groups and where a portion of the repeating groups comprise two crosslinked species connected via the protecting groups.
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