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:
Oct. 03, 1978
Filed:
Jun. 15, 1977
Applicant:
Inventors:
Assignee:
Showa Denko K.K., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ; C08J / ; C08J / ;
U.S. Cl.
CPC ...
521 53 ; 521149 ; 210 / ; 260 / ; 544274 ; 2603437 ; 2602975 ; 526 16 ; 526 53 ; 526 54 ; 526273 ; 528482 ; 536112 ;
Abstract
A granular filler for liquid chromatography consisting essentially of a porous copolymer of (A) a glycidyl monovinyl ester of glycidyl monovinyl ether and (B) an alkylene glycol divinyl ester with component (A) being crosslinked by component (B) to form a gel copolymer, said copolymer containing in its molecule epoxy groups ascribable to component (A) or modified groups resulting from the ring-opening reaction of the epoxy groups with a modifying compound having a hydrophilic, oleophilic or ion exchangeable group.