Microsphere Additive for Increased Thermoset Lubricity and/or Barrier Properties
AssigneeBecton, Dickinson and Company
InventorsLeandro Forciniti, Alfred Wesley Prais
Life of this patent
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Abstract
The invention relates, in general, to one or more blended polymeric materials that include therein at least one microsphere additive that are added thereto to produce a self-lubricating effect in same. In one embodiment, the at least one microsphere additive is formed from a suitable polyethylene compound and is added to a suitable base polymeric and/or rubber compound to produce a blended polymeric material that is self-lubricating. In one instance, the at least one polyethylene microsphere additive is formed from an ultra-high molecular weight polyethylene powder.
Claims21
A blended polymeric material comprising:
- at least one base polymeric material;
- and
- at least one microsphere additive,
- wherein the base polymeric material and the at least one microsphere additive are blended together to yield a blended polymeric material that is self-lubricating.
A stopper comprising:
- a stopper body;
- and
- at least one sealing rib formed on the stopper body, wherein the stopper body and the at least one sealing rib are formed from a blended polymeric material comprising:
- at least one base polymeric material;
- and
- at least one microsphere additive,
- wherein the base polymeric material and the at least one microsphere additive are blended together to yield a blended polymeric material that is self-lubricating.
Dependencies are inferred from the claim text.