초록 ▼

A release agent composition for tire molding applications that, when applied on the inner liner surface of an unvulcanized green tire, has a white color prior to vulcanization and a black to blackish-gray color after vulcanization. The release agent composition contains a diorganopolysiloxane that h

A release agent composition for tire molding applications that, when applied on the inner liner surface of an unvulcanized green tire, has a white color prior to vulcanization and a black to blackish-gray color after vulcanization. The release agent composition contains a diorganopolysiloxane that has a viscosity at 25.degree. C. of at least 100 centistokes, an emulsifying dispersant, mica powder or talc powder, a powder having a melting point not exceeding 200.degree. C., and water.

대표청구항 ▼

[ That which is claimed is:] [1.] A release agent for tire molding applications comprising 3-20 percent by weight of a diorganpolysiloxane having a viscosity of at least 100 centistokes; 0.5-20 percent by weight of an emulsifying agent selected from the group consisting of anionic surfactants, nonio

[ That which is claimed is:] [1.] A release agent for tire molding applications comprising 3-20 percent by weight of a diorganpolysiloxane having a viscosity of at least 100 centistokes; 0.5-20 percent by weight of an emulsifying agent selected from the group consisting of anionic surfactants, nonionic surfactants, natural lecithin, polyvinyl alcohol, methylcellulose, carboxymethylcellulose, and carboxyethylcellulose; 3-25 percent by weight of mica powder or talc powder; 3-33 percent by weight of a second powder having a melting point not exceeding 200 .degree. C., the second powder being selected from the group consisting of magnesium stearate, calcium stearate, zinc stearate, and aluminum stearate; and 2-90.5 percent by weight of water.