×

Method for obtaining wax from recycled polyethylene

  • US 9,200,130 B2
  • Filed: 08/07/2012
  • Issued: 12/01/2015
  • Est. Priority Date: 08/07/2012
  • Status: Active Grant
First Claim
Patent Images

1. A process for producing a wax from recycled polyethylene, comprising:

  • providing an amount of recycled polyethylene;

    heating the recycled polyethylene to a high temperature of from about 200 °

    C. to about 500 °

    C. and under a pressure of from about 1 mmHg absolute to about 100 mmHg absolute to undergo de-polymerization;

    degrading the recycled polyethylene to smaller wax fragments having a molecular weight of from about 200 to about 2,000;

    concurrently distilling the recycled polyethylene under a pressure of from about 1 mmHg absolute to about 100 mmHg absolute during the de-polymerization to collect and remove the smaller wax fragments.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×