Epoxy acrylate of aromatic biphenol-advanced epoxy resin reacted with anhydride
AssigneeHuntsman Advanced Materials Americas LLC
InventorsMartin Roth, Roger Salvin, Kurt Meier, Bernhard Sailer, Rolf Wiesendanger
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Abstract
A carboxyl group-containing epoxy acrylate is prepared by the reaction of an epoxy resin advanced with an aromatic biphenol compound which is reacted with a polycarboxylic acid anhydride in the presence or absence of a catalyst and a polymerization inhibitor at an elevated temperature. The carboxyl group-containing epoxy acrylate is mixed with a photoinitiator to obtain a photoresist formulation.
Claims33
A photoresist formulation comprising:
- (a) a carboxyl group-containing epoxy acrylate of formula IV
- wherein
- X is hydrogen or a group of formula
- R3 is the radical of succinic acid anhydride after removal of the anhydride radical,
- W1 is hydrogen or a group of formula
- W2 is —H or the group
- Y is the group of formula —O—A—O—W1, or
- A is the radical of an aromatic bifunctional compound,
- T is the radical of an aromatic bifunctional compound,
- R1 is —H or —CH3,
- R2 is —H, —CH3 or phenyl,
- n is an integer from 0 to 300,
- with the proviso that, in formula W, at least 10 mol % of radicals W1 that are not in the end groups X and Y are a group of formula
- wherein R1, R2, and R3 are as defined above,
- and with the proviso that when n in formula IV is 0, then X is hydrogen and Y is the group of formula
- b) a photoinitiator.
A method for the preparation of a photoresist formulation, comprising the step of mixing
- (a) a carboxyl group-containing epoxy acrylate of formula IV
- wherein
- X is hydrogen or a group of formula
- R3 is the radical of succinic acid anhydride after removal of the anhydride radical,
- W1 is hydrogen or a group of formula
- W2 is —H or the group
- Y is the group of formula —O—A—O—W1, or
- A is the radical of an aromatic bifunctional compound,
- T is the radical of an aromatic bifunctional compound,
- R1 is —H or —CH3,
- R2 is —H, —CH3 or phenyl,
- n is an integer from 0 to 300,
- with the proviso that, in formula IV, at least 10 mol % of radicals W1 that are not in the end groups X and Y are a group of formula
- wherein R1, R2, and R3 are as defined above,
- and with the proviso that when n in formula IV is 0, then X is hydrogen and Y is the group of formula
- with
- (b) a photoinitiator.
A carboxyl group-containing epoxy acrylate of formula IV
- wherein
- X is hydrogen or a group of formula
- A is the radical of an aromatic bifunctional compound,
- R1 is —H or
- R2 is —H, —CH3 or phenyl,
- R3 is the radical of succinic acid anhydride after removal of the anhydride radical,
- W1 is hydrogen or a group of formula
- W2 is —H or the group
- Y is the group of formula —O—A—O—W1, or
- T is the radical of an aromatic bifunctional compound,
- n is an integer from 0 to 300,
- with the proviso that, in formula IV, at least 10 mol % of radicals W1 that are not in the end groups X and Y are a group of formula
- wherein R1, R2, and R3 are as defined above,
- and with the proviso that when n in formula IV is 0, then X is hydrogen and Y is the group of formula
Dependencies are inferred from the claim text.