Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
August 23, 2011
Patent Application Number
12536386
Date Filed
August 5, 2009
Patent Primary Examiner
Patent abstract
The present invention provides a chemically amplified positive composition comprising:(A) a resin comprising a structural unit having an acid-labile group and being itself insoluble or poorly soluble in an alkali aqueous solution but becoming soluble in an alkali aqueous solution by the action of an acid,(B) a resin comprising a structural unit represented by the formula (I):
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