Compositions having the properties of low viscosity polyethylenes

US4766166A · kind A · utility

Assignee

• Moore and Munger Marketing and Refining, Inc. · US

Inventors

• Janardan D. Upadhyaya · Fairfield, US
• Harry M. Farnham · Easton, US
• ING-CHIN LIN · North Haven, US
• Alan Case · Beaverton, US

Key dates

• Filing date: Feb 13, 1987
• Grant date: Aug 23, 1988
• Expiry date: Feb 13, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L91/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Compositions are provided which comprise 50-80% of a synthetic wax, such as a Fischer-Tropsch wax, in combination with 10-50% of a polyethylene material having a Brookfield viscosity at 284.degree. F. greater than about 5000 centipoise. The compositions serve as replacements for commercially available low viscosity polyethylenes, i.e., polyethylenes having Brookfield viscosities at 284.degree. F. of less than about 1000 centipoise, in such applications as lubricating plastic extrusions and coating paperboard stock. The compositions can be prepared by melting and then mixing the components. Accordingly, custom tailoring of the compositions for specific applications can be readily performed.