High clarity emulsions containing high melt viscosity maleated polypropylene wax
AssigneeEastman Kodak Company
InventorsThomas D. Roberts, Thomas W. Smith, Charlene A. Galvin
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Abstract
A process is provided for the production of an emulsifiable polypropylene wax having a melt viscosity from 1000 to 5000 cP at 190.degree. C. This process entails reacting at a temperature below 190.degree. C. a thermally degraded polypropylene wax having a melt viscosity below 1000 cP (at 190.degree. C.) with maleic anhydride in the presence of a free radical source. Floor polish formulations containing this polypropylene wax are very clear but yet provide floor finishes that are very tough.
Claims7
A process for the preparation of an emulsifiable polypropylene wax comprising reacting at a temperature below 190.degree. C. up to 10 wt % maleic anhydride and a thermally degraded polypropylene wax having a melt viscosity below 1,000 cP (at 190.degree. C.) in the presence of a free radical source for a sufficient time to produce a maleated polypropylene wax having a significantly increased melt viscosity that is at least 1000 cP (at 190.degree. C.) wherein the reaction temperature is also at or above the melting point of said thermally degraded polypropylene wax.
Dependencies are inferred from the claim text.