Water dispersible band ply lubricant

Details Water dispersible band ply lubricant Water dispersible band ply lubricant

B - Operations, Transporting

29

C

253/21

B29C 33/60 (2006.01) B29C 33/62 (2006.01) B29C 43/12 (2006.01)

Patent

CA 1156644

ABSTRACT OF THE DISCLOSURE Band ply lubricants, sometimes referred to as inside tire casing lubri- cants or inside tire dopes, are used as friction reducing and surface protective coatings during the cure of bias ply tires in particular and are applied inter- mediately between the interior surface of the green tire carcass and the exterior surface of a rubber bladder. A silicone and volatile hydrocarbon free, water reducible paste product comprising a zinc soap of a long chain fatty acid (zinc stearate), a long chain fatty acid ester of sorbitan, an alkylene oxide alkylene glycol polymer and mica, which are combined to produce a paste which is reduced to application viscosity by spraying with approximately an equal weight of water, is provided to eliminate the more costly emulsions and hydrocarbon solvent con- taining inside tire curing lubricants without sacrifice in quality.

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