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US 8,022,115 B2Granted
Anti-fouling ultrahigh molecular weight polyethylene compositions and methods of using the same
AssigneeQuadrant Epp AG
InventorsJoseph V. Gregg, Brian Yarcich
Life of this patent
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Abstract
It has now been surprisingly and unexpectedly discovered that a combination of polychlorophenoxyphenol, a silver-containing biocide, and an organopolysiloxane, when added to UHMWPE, renders the UHMWPE resistant to both soft and hard fouling. The polychlorophenoxy phenol is preferably 2.4.4′-trichloro-2′-hydroxy-diphenylether and the metal-containing biocide is preferably a silver zeolite.
Claims19
An anti-fouling ultrahigh molecular weight polyethylene (AF-UHMPE) composition comprising:
- a mixture of an ultrahigh molecular weight polyethylene (UHWMPE) having number average molecular weight of 1.0×106 to 1.0×107 Daltons,
- a polychlorophenoxyphenol,
- an organopolysiloxane, and
- a silver-containing biocide.
1 more element
An anti-fouling ultrahigh molecular weight polyethylene (AF-UHMWPE) composition comprising:
- a mixture of an ultrahigh molecular weight polyethylene having a number average molecular weight of from 1.0×106 to 1.0×107 Daltons,
- 2.4.4′-trichloro-2′-hydroxy-diphenylether,
- a silicone, and
- a silver-containing zeolite.
1 more element
Dependencies are inferred from the claim text.