Modified diamond particles

US9283543B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9283543-B2
Application numberUS-201213526410-A
CountryUS
Kind codeB2
Filing dateJun 18, 2012
Priority dateSep 10, 2008
Publication dateMar 15, 2016
Grant dateMar 15, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

Modified diamond particles for use in chromatography with a desired functional group at the diamond surface, formed from reaction of hydroxyl groups at diamond surfaces with a reactive molecule.

First claim

Opening claim text (preview).

What is claimed is: 1. A diamond particle with a modified surface comprising: a plurality of bonding sites; and a plurality of straight chain alkyl molecules tethered to the diamond surface through urethane linkages at the plurality of bonding sites, wherein the plurality of straight chain alkyl molecules provide hindrance from further bonding reactions near the bonding sites. 2. The diamond particle of claim 1 wherein each of the plurality of straight chain alkyl molecules contains an electrophilic site. 3. The diamond particle of claim 1 wherein the plurality of straight chain alkyl molecules are a reaction product of an alkyl isocyanate. 4. The diamond particle of claim 1 wherein the plurality of straight chain alkyl molecules comprise an alkyl group with the formula —(CH2)nCH3, where n=0-25. 5. The diamond particle of claim 1 wherein the plurality of straight chain alkyl molecules are partially or fully fluorinated. 6. The modified diamond particle of claim 1 , wherein the hindered bonding sites include hydroxide molecules on the diamond surface. 7. The modified diamond particle of claim 1 , wherein the plurality of straight chain alkyl molecules include the reaction product of octadecyl isocyanate and a hydroxide terminated bonding site on the diamond surface. 8. A diamond particle with a modified surface comprising: a plurality of bonding sites; and a plurality of octadecyl isocyanate molecules tethered to the diamond surface through urethane linkages at a plurality of bonding sites, wherein the octadecyl isocyanate molecules provide hindrance from further bonding reactions near the bonding sites. 9. The modified diamond particle of claim 8 , wherein the hindered bonding sites include hydroxide molecules on the diamond surface.

Assignees

Inventors

Classifications

  • the functional group or the linking, spacer or anchoring group as a whole comprising at least one type of heteroatom selected from a nitrogen, oxygen or sulfur, these atoms not being part of the carrier as such · CPC title

  • comprising at least two different types of heteroatoms selected from nitrogen, oxygen or sulphur · CPC title

  • Packing or coating · CPC title

  • by adsorption or absorption · CPC title

  • B01J20/287Primary

    Non-polar phases; Reversed phases · CPC title

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Frequently asked questions

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What does patent US9283543B2 cover?
Modified diamond particles for use in chromatography with a desired functional group at the diamond surface, formed from reaction of hydroxyl groups at diamond surfaces with a reactive molecule.
Who is the assignee on this patent?
Linford Matthew R, Jensen David Scott, Wiest Landon Andrew, and 1 more
What technology area does this patent fall under?
Primary CPC classification B01J20/3248. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Mar 15 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).