Patent ID: 11920037
Assignee: BMIC LLC
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  E | IPC C  E

Claim 0:
1. A method comprising:
obtaining a rubber component,
wherein the rubber component comprises at least one of ground tire rubber, devulcanized rubber, or any combination thereof;

obtaining an unoxidized asphalt,
wherein the unoxidized asphalt having a penetration point of 200 dmm or greater at 77° F. as measured according to ASTM D5;

mixing the rubber component and the unoxidized asphalt to obtain an unoxidized asphalt composition;
after the step of mixing, oxidizing the unoxidized asphalt composition to obtain an oxidized asphalt composition,
wherein the oxidized asphalt composition has a penetration point of 15 dmm to 30 dmm at 77° F. as measured according to ASTM D5; and

forming a roofing shingle from the oxidized asphalt composition;, wherein the method does not comprise a step of adding a polymer comprising styrene.