Title:
COMPOSITION AND METHOD FOR PEELING COATING FILM
Document Type and Number:
Japanese Patent JPH10219155
Kind Code:
A
Abstract:
To peel the coating film from a substrate without fail without adversely affecting the substrate.
A substrate is immersed in a composition substantially free from a chlorine-containing solvent and comprising 1-95wt.% ethylene glycol diether or propylene glycol dieter of the formula: R1O-Xn-R2 (wherein R1 and R2 are each a 1-12C alkyl; X is an ethylene oxide group or a propylene oxide group; and n is 1-10), 5-50wt.% nitric acid and the balance of water, rinsed with an aqueous solution containing ethylene glycol dither or propylene glycol dither and is subjected to physical force such as air blow to remove the coating film from the substrate.
Inventors:
KAWAKAMI IKUO
Application Number:
JP2680297A
Publication Date:
August 18, 1998
Filing Date:
February 10, 1997
Export Citation:
Assignee:
OLYMPUS OPTICAL CO
International Classes:
C09D9/00; (IPC1-7): C09D9/00
Attorney, Agent or Firm:
Takeshi Nara