Oil dispersible polymer nanoparticles
First Claim
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1. An oil-dispersible nanoparticle comprising an organic polymer and polar metal-binding functional groups on its surface.
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Abstract
There is disclosed an oil-dispersible nanoparticle comprising metal-binding functional groups on its surface. Preferably, the nanoparticle is derived from substantially spherical polymer micelles of (A1-yCy)nBm diblocks or (A1-yCy)nBm(A1-yCy)n triblocks. A method for producing the nanoparticles is also described. The nanoparticles are particularly useful as lubricant additives.
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32 Claims
- 1. An oil-dispersible nanoparticle comprising an organic polymer and polar metal-binding functional groups on its surface.
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23. A method for making an oil-dispersible nanoparticle comprising 1) forming substantially spherical micelles of (A100%-yCy)nBm diblocks or (A100%-yCy)nBm(A100%-yCy)n triblocks in a block-selective solvent and, optionally, 2) crosslinking the substantially spherical micelles,
where the A units are oil soluble monomers; - the C units are functional groups that are metal binding or metal binding after chemical transformation; and
the B units are oil insoluble monomers and preferably crosslinkable;where y ranges from 0 to about 30% and preferably from about 0.1% to about 2%; where n ranges from about 10 to about 10,000; and where m ranges from about 10 to about 10,000. - View Dependent Claims (24, 25, 26, 27, 28, 29)
- the C units are functional groups that are metal binding or metal binding after chemical transformation; and
Specification