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. 14, 1992
Filed:
Oct. 26, 1990
Milos V Novotny, Bloomington, IN (US);
Vladislav Dolnik, Brno, CS;
Kelly A Cobb, Bloomington, IN (US);
Indiana University Foundation, Bloomington, IN (US);
Abstract
Gels are formed in capillary tubes by electrophoretically drawing a charged polymerization initiator into a capillary tube pre-filled with monomer, crosslinking agent and catalyst. The rate of travel of the initiator is slow enough to maintain a sharp leading edge or front, thereby causing polymerization to occur in a progressive manner from one end of the capillary to the other. The shrinkage inherent in the polymerization reaction is thus compensated by fluid movement ahead of the traveling initiator front, and discontinuities in the gel which would otherwise be formed are avoided.