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:
Jan. 16, 1990
Filed:
May. 01, 1987
Applicant:
Inventors:
Meir Wilchek, Rehovot, IL;
Karin Cabrera, Rehovot, IL;
Assignee:
Yeda Research and Development Co., Ltd., Rehovot, IL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F / ;
U.S. Cl.
CPC ...
556416 ; 556400 ; 556422 ; 556427 ; 556428 ; 556437 ; 556450 ; 548110 ; 548406 ; 530300 ; 530344 ; 530350 ; 530417 ;
Abstract
The invention relates to modified silica, substituted with a variety of substituents. There is provided a product termed primary hydroxyl silica where there are attached to the silica substituents bearing a single hydroxyl group. Furthermore there are provided a wide variety of derivatives of such hydroxy-silica, which are of value in affinity chromatography and for various other uses. The products combine the thermal and mechanical stability of the silica used as carrier with the useful properties of the substituents.