Patent ID: 8507416
Filing Date: 2013-08-13
Classification: B21C,B21J,C10M,C10N

Abstract:
1. A water-based lubricant for plastic working, comprising a resin component containing a copolymer or homopolymer of monomers having an ethylenically unsaturated bond, including at least maleic anhydride (A), an inorganic component (B) comprising insoluble or hardly soluble in water solid particles of inorganic reinforcing component (B 1 ) having a Mohs hardness of 1 to 5 and/or at least one water-soluble inorganic component (B 2 ), and a solid lubricating component (C), wherein maleic anhydride moieties of the resin component (A) are blocked with a nitrogen-containing compound at a blocking ratio of 10 to 80%, and unblocked of maleic anhydride moieties are neutralized with an alkaline component at a degree of neutralization of 40 to 100%.