Invention Grant
- Patent Title: Hybrid material for chromatographic separations comprising a superficially porous core and a surrounding material
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Application No.: US15451005Application Date: 2017-03-06
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Publication No.: US11439977B2Publication Date: 2022-09-13
- Inventor: Nicole L. Lawrence , Beatrice W. Muriithi , Kevin D Wyndham
- Applicant: Waters Technologies Corporation
- Applicant Address: US MA Milford
- Assignee: Waters Technologies Corporation
- Current Assignee: Waters Technologies Corporation
- Current Assignee Address: US MA Milford
- Agency: Womble Bond Dickinson (US) LLP
- Agent Deborah M. Vernon
- Main IPC: B01J20/289
- IPC: B01J20/289 ; B01J20/32 ; B01D15/34 ; B01D15/38 ; B01D15/40 ; B01D15/30 ; B01D15/32

Abstract:
The present invention provides novel chromatographic materials, e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The preparation of the inorganic/organic hybrid materials of the invention wherein a surrounding material is condensed on a superficially porous hybrid core material will allow for families of different hybrid packing materials to be prepared from a single core hybrid material. Differences in hydrophobicity, ion-exchange capacity, chemical stability, surface charge or silanol activity of the surrounding material may be used for unique chromatographic separations of small molecules, carbohydrates, antibodies, whole proteins, peptides, and/or DNA.
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