NON-ASBESTOS JOINT SHEET
PURPOSE:To obtain the subject sheet used as a base material. of gasket having excellent sealing properties by mixing non-asbestos fiber, rubber binder, filler and a specific amount of plastic fiber having a specific size and compressing in heating. CONSTITUTION:(A) Non-asbestos fiber preferably comp...
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Zusammenfassung: | PURPOSE:To obtain the subject sheet used as a base material. of gasket having excellent sealing properties by mixing non-asbestos fiber, rubber binder, filler and a specific amount of plastic fiber having a specific size and compressing in heating. CONSTITUTION:(A) Non-asbestos fiber preferably composed of (fibrillated) aromatic polyamide fiber, sepiolite fiber or glass fiber, etc., is mixed with (B) rubber binder composed of thermosetting rubber, etc., and (C) filler composed of clay, graphite or mica, etc. Next, a composition containing the resultant mixture is mixed with (D) 1-15wt.% (preferably 3-10wt.%) plastic fiber having 0.001-0.9 denier (preferably 0.05-0.1 denier) and compressed in heating to afford the aimed sheet. |
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