Composition containing alcohol and use thereof for epoxy removal
AssigneeInternational Business Machines Corporation
InventorsPeter Bakos, Russell E. Darrow, Joseph Funari, Richard M. Poliak
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Abstract
Cured epoxy compositions are removed from substrates by employing compositions containing an organic cyclic alcohol and a surface-active agent.
Claims42
A removal composition capable of removing a cured epoxy polymer from a substrate consisting essentially of at least about 75% by weight based upon the weight of the composition of an organic cyclohydrocarbyl alcohol boiling above about 110.degree. C., wherein said hydrocarbyl is selected from the group of aromatic ring, cycloaliphatic ring or terpene ring, and a minor amount of an ionic fluorocarbon surface agent.
A removal composition capable of removing a cured epoxy polymer from a substrate consisting essentially of at least about 75% by weight based upon the weight of the composition of an organic cyclohydrocarbyl alcohol boiling above about 110.degree. C., wherein said hydrocarbyl is selected from the group of aromatic ring, cycloaliphatic ring or terpene ring, a minor amount of an organic solvent boiling above about 110.degree. C., and a minor amount of a surface active agent, wherein said organic solvent is at least one of a cyclocompound, or contains a hydroxyl group, or contains a keto group.
A process for removing a cured epoxy composition from a substrate which comprises contacting the substrate containing said epoxy composition to be removed with a removal composition consisting essentially of at least about 75% by weight based upon the weight of the composition of an organic cyclohydrocarbyl alcohol boiling above about 110.degree. C., wherein said hydrocarbyl is selected from the group of aromatic ring, cycloaliphatic ring or terpene ring, and a minor amount of a surface active agent.
A process for removing a cured epoxy composition from a ceramic substrate which comprises contacting the substrate containing said epoxy composition to be removed with a composition containing a major amount of an organic cyclohydrocarbyl alcohol boiling above about 110.degree. C., wherein said cyclohydrocarbyl is selected from the group of aromatic ring, cycloaliphatic ring, or terpene ring, and a minor amount of a surface active agent.
Dependencies are inferred from the claim text.