Plastic and nonmetallic article shaping or treating: processes – With printing or coating of workpiece – Coating or impregnating workpiece before molding or shaping...
Reexamination Certificate
2011-08-23
2011-08-23
Lee, Edmund H. (Department: 1744)
Plastic and nonmetallic article shaping or treating: processes
With printing or coating of workpiece
Coating or impregnating workpiece before molding or shaping...
C264S275000, C264S265000
Reexamination Certificate
active
08003030
ABSTRACT:
The process for producing gaskets includes the steps of: forming a metal core material (2) using a stainless steel plate; treating the resulting metal core material (2) with an alkali treating solution; preparing an unvulcanized rubber molded product (1); mounting the metal core material (2) treated in the treating step to the unvulcanized rubber molded product (1); and vulcanizing the rubber-molded product to thereby anchor the elastic material to the metal core material (2) without using an adhesive; characterized in that the alkali treating solution used in the step of alkali treatment includes the following components (A), (B), and (C):(A) an alkali metal hydroxide or an alkaline earth metal hydroxide;(B) an alkali metal silicate or an alkaline earth metal silicate; and(C) a carboxylate salt.
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Ito Masaru
Koyama Tomoyuki
Muragishi Hirotaka
Yoshitsune Syuji
Crockett & Crockett, PC
Crockett, Esq. K. David
Lee Edmund H.
NOK Corporation
Syrengelas, Esq. Niky Economy
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