Invention Grant
- Patent Title: Hybrid material for chromatographic separations comprising a superficially porous core and a surrounding material
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Application No.: US16082823Application Date: 2017-03-06
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Publication No.: US11642653B2Publication Date: 2023-05-09
- Inventor: Nicole L. Lawrence , Kevin Daniel Wyndham , Beatrice W. Muriithi
- 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
- International Application: PCT/US2017/020954 2017.03.06
- International Announcement: WO2017/155884A 2017.09.14
- Date entered country: 2018-09-06
- Main IPC: B01J20/283
- IPC: B01J20/283 ; B01J20/22 ; B01J20/28 ; B01J20/285 ; B01J20/286 ; B01J20/32 ; B01D15/20

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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