The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 27, 2005
Filed:
Aug. 12, 2003
Applicants:
Xiaodong Liu, Fremont, CA (US);
Andrei V. Bordunov, Campbell, CA (US);
Inventors:
Xiaodong Liu, Fremont, CA (US);
Andrei V. Bordunov, Campbell, CA (US);
Assignee:
Dionex Corporation, Sunnyvale, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01D015/08 ;
U.S. Cl.
CPC ...
Abstract
A modified silica support having a polar phase bound to its surface and suitable for use for chromatographic separations, having the following formula:wherein, m=0-20; n=0-20; p=1-50; X is sulfonyl, carbonyl, carbamoyl, or oxycarbonyl; R=H, alkyl, substituted alkyl, aryl or substituted aryl groups; R=alkyl, substituted alkyl, aryl or substituted aryl groups; and Rand Rare alkyl, aryl, hydroxyl, or alkoxyl groups or groups including oxygen atoms cross-linked to silicon atoms. Also, a polar silane intermediate to make this support.