| abstract |
The present invention is an acid diffusion controller comprising at least one compound selected from the group consisting of a compound represented by the following formula (1) and a compound represented by the following formula (2). In the following formula (1), R 2 and R 3 are each independently a hydrogen atom or a monovalent hydrocarbon group having 1 to 10 carbon atoms, and at least one of R 2 and R 3 is carbon. It is a monovalent hydrocarbon group of the number 1-10. R 6 and R 7 are each independently a hydrogen atom or a monovalent hydrocarbon group having 1 to 10 carbon atoms, or a ring together with a nitrogen atom to which R 6 and R 7 are bonded to each other. A ring structure having 3 to 10 members is formed. In the following formula (2), R 10 is a hydrogen atom or a monovalent hydrocarbon group having 1 to 10 carbon atoms. |