Process for the non-cutting reshaping of metals, and lubricant compositions for this process
OwnerKarl Stetterinventor
Life of this patent
Estimating the term…
Abstract
A process for non-cutting reshaping of metals using polymers in the form of homopolymers and copolymers of 1-olefins, of oxidation products of such homopolymers or copolymers, or of saponification or esterification products of these oxidation products as lubricants. The polymers are solid and preferably have melting points above 100.degree. C. and melt viscosities of greater than 100 mPa s at 170.degree. C., the acid indices in the oxidation products having a value of greater than 5. These lubricants can be employed in pure solid form or in the form of compositions in which they are present as a mixture with lubricant additives and/or suspending agents, dispersing agents or solvents which are known per se.
Claims18
A process for the non-cutting reshaping of metals comprising using, during said non-cutting metal reshaping, a lubricant which includes an effective lubricating amount of a synthetic lubricating agent which is at least one substance selected from the group consisting of air oxidized homopolymers of C.sub.2 -C.sub.18 -alkenes having a terminal double bond, air-oxidized copolymers of said C.sub.2 -C.sub.18 -alkenes, air-oxidized copolymers of said C.sub.2 -C.sub.18 -alkenes which include up to about 50% by weight of an oxygen-containing 1-olefin monomer, and esterification and/or saponification products of said air oxidized homopolymers or copolymers, and mixtures thereof, said air oxidized homopolymers or copolymers having an acid number of between 5 and 150 mg of KOH/g, a melt viscosity of between 5 and 100,000 mPa s at 160.degree. C., a melting point above 90.degree. C., and a dicarboxylic acid content of greater than 10% by weight.
A non-cutting metal reshaping lubricant which includes an effective lubricating amount of a synthetic lubricating agent which is at least one substance selected from the group consisting of air oxidized homopolymers of C.sub.2 -C.sub.18 -alkenes having a terminal double bond, air oxidized copolymers of said C.sub.2 -C.sub.18 -alkenes, air oxidized copolymers of said C.sub.2 -C.sub.18 -alkenes which include up to about 50% by weight of an oxygen-containing 1-olefin monomer, and esterification and/or saponification products of said air oxidized homopolymers or copolymers, and mixtures thereof, said air oxidized homopolymers or copolymers having an acid number of between 5 and 150 mg of KOH/g, a melt viscosity of between 5 and 100,000 mPa.s at 160.degree. C., a melting point above 90.degree. C., and a dicarboxylic acid content of greater than 10% by weight.
Dependencies are inferred from the claim text.