Allochroic paint with time indication function and its preparing process


Application Number: 00109194
Application Date: 2000.06.15
Publication Number: 1330118
Publication Date: 2002.01.09
Priority Information:
International: C09D5/29;C09D133/02
Applicant(s) Name: Zhang Yi
Address:
Inventor(s) Name: Zhang Yi;Li Wenduo;Zhou Zhidong
Patent Agency Code: 00000
Patent Agent:
Abstract A chromotropic paint with time indication function is prepared from pH indicating agent as chromotropic agent, solid alkali as promoter, acrylic resin or emulsion as film forming substance, and organosilicon resin as coating agent. The thickness of coated layer can be used to control the colour-change time. It can be used for the package of food to indicate the quality guarantee period of food.