US2020009545A1PendingUtilityA1

Porous materials for solid phase extraction and chromatography and processes for preparation and use thereof

Assignee: WATERS TECHNOLOGIES CORPPriority: May 20, 2011Filed: Apr 11, 2019Published: Jan 9, 2020
Est. expiryMay 20, 2031(~4.8 yrs left)· nominal 20-yr term from priority
B01J 39/20B01J 20/28057B01J 43/00B01J 41/14G01N 1/405B01J 20/28078B01J 20/285B01J 2220/82B01D 15/08B01J 20/264C08F 226/06C08J 2205/04
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Claims

Abstract

The present invention provides porous materials for use in solid phase extractions and chromatography. In particular, the materials exhibit superior properties in the SPE analysis of biological materials. In certain aspects, the materials feature at least one hydrophobic component, at least one hydrophilic component and a average pore diameter of about 100 Å to about 1000 Å. In certain embodiments the materials also exhibit a nitrogen content from about 1% N to about 20% N. In certain embodiments, the materials feature at least one hydrophobic component, at least one hydrophilic component wherein more than 10% of the BJH surface area of the porous material is contributed by pores that have a diameter greater than or equal to 200 Å.

Claims

exact text as granted — not AI-modified
1 . A porous material comprising a copolymer of a least one hydrophobic monomer and at least one hydrophilic monomer, wherein more than 10% of the BJH surface area of the porous material is contributed by pores that have a diameter greater than or equal to 200 Å 
     
     
         2 - 25 . (canceled) 
     
     
         26 . A porous material comprising a copolymer of at least one hydrophobic monomer and at least one hydrophilic monomer, wherein said material has a median pore diameter of about 100 Å to about 1000 Å. 
     
     
         27 - 43 . (canceled) 
     
     
         44 . A porous material comprising a copolymer of at least one hydrophobic monomer and at least one hydrophilic monomer, wherein at least one of the hydrophilic monomers is a monomer having the formula: 
       
         
           
           
               
               
           
         
         wherein n is an integer from 1-3. 
       
     
     
         45 - 102 . (canceled)

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