Claims
- 1. A concurrently sintered and cross-linked ram extruded product comprising
- a mixture of ultra high molecular weight polyethylene powder, a cross-linking agent, an electrically conductive agent selected from the group consisting of conductive carbon black, metallic oxide, and metallic powder, and a lubricant, said product having a transverse dimensional deviation of less than approximately 2 mm., said electrically conductive agent being present in the amount of 0.5 wt. parts per 100 parts of said polyethylene powder.
- 2. A concurrently sintered and cross-linked ram extruded product comprising
- a mixture of ultra high molecular weight polyethylene powder, a cross-linking agent, an electrically conductive agent, and a lubricant, said electrically conductive agent comprising zinc oxide provided in an amount between 15 to 50 wt. parts per 100 wt. parts polyethylene powder, said product having a transverse dimensional deviation of less than approximately 2 mm.
- 3. The ultra high molecular weight polyethylene product of claim 2 wherein said electrically conductive agent is present in the amount of 15 wt. parts per 100 parts of said polyethylene powder.
- 4. The ultra high molecular weight polyethylene product of claim 2 wherein said electrically conductive agent is present in the amount of 15 to 20 wt. parts per 100 parts of said polyethylene powder.
- 5. The concurrently sintered, cross-linked ram extruded product of claim 2 wherein said metallic oxide comprises aluminum oxide.
- 6. The concurrently sintered, cross-linked ram extruded product of claim 2 wherein said metallic oxide comprises indium oxide.
- 7. The concurrently sintered, cross-linked ram extruded product of claim 2 wherein said metallic oxide comprises potassium oxide.
- 8. The concurrently sintered, cross-linked ram extruded product of claim 2 wherein said electrically conductive agent comprises aluminum oxide present in the amount of 15 wt. parts per 100 parts of said polyethylene powder.
- 9. The concurrently sintered cross-linked ram extruded product of claim 2 wherein said electrically conductive agent comprises aluminum oxide present in the amount of 22.5 wt. parts per 100 parts of said poyethylene powder.
- 10. The concurrently sintered cross-linked ram extruded product of claim 2 further including a filler.
- 11. The concurrently sintered cross-linked ram extruded product of claim 2 further including coloring material.
- 12. The concurrently sintered cross-linked ram extruded product of claim 2 further including pastel coloring material.
Parent Case Info
This application is a continuation of application Ser. No. 707,390, filed Mar. 1, 1985, now abandoned, which is a division of application Ser. No. 549,828, filed Nov. 9, 1983, now U.S. Pat. No. 4,518,552.
US Referenced Citations (5)
Divisions (1)
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Number |
Date |
Country |
Parent |
549828 |
Nov 1983 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
707390 |
Mar 1985 |
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