Metal Salts Of Oxidized Low Molecular Byproduct Polyethylene As Lubricants For PVC
AssigneeHoneywell International Inc.
InventorsManfred K. Seven, Manfried M. Braun, Vincent M. Clarke
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Abstract
Polymeric salts, lubricant compositions comprising the polymeric salts and processes for producing such polymeric salts. More specifically, low viscosity lubricants for the working surface of an extrusion die during the processing of plastics that require lubricants to render them processable, such as polyvinyl chloride, chlorinated polyvinyl chloride, polyvinylidene chloride and copolymers thereof. A metal base is reacted with acid functional groups formed during oxidation of a wax, thereby forming a polymeric salt, neutralizing the wax and saponifying saponifiable functional groups.
Claims20
A polymeric compound comprising an oxidized wax having metal groups attached thereto, said polymeric compound having an acid number of from about 0.5 mg KOH/gram to about 20 mg KOH/gram and a saponification number of from about 5 mg KOH/gram to about 35 mg KOH/g;
- and wherein the polymeric compound has a melt viscosity of less than about 450 cps at 140° C.
A process for forming a polymeric compound comprising:
- a) combining at least one metal base with a molten non-oxidized wax;
- b) at least partially oxidizing the wax, thereby generating acid functional groups;
- and
- c) allowing the metal base to react with the generated acid functional groups, thereby producing a polymeric compound comprising an oxidized wax having metal groups attached thereto, said polymeric compound having an acid number of from about 0.5 mg KOH/gram to about 20 mg KOH/gram and a saponification number of from about 5 mg KOH/gram to about 35 mg KOH/g;
- and wherein the polymeric compound has a melt viscosity of less than about 450 cps at 140° C.
A process for forming a polymeric compound comprising:
- a) providing a wax that is at least partially oxidized, said at least partially oxidized wax having acid functional groups;
- b) combining at least one metal base with said at least partially oxidized wax;
- and
- c) allowing the metal base to react with the acid functional groups, thereby producing a polymeric compound comprising an oxidized wax having metal groups attached thereto, said polymeric compound having an acid number of from about 0.5 mg KOH/gram to about 20 mg KOH/gram and a saponification number of from about 5 mg KOH/gram to about 35 mg KOH/g;
- and wherein the polymeric compound has a melt viscosity of less than about 450 cps at 140° C.
Dependencies are inferred from the claim text.