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. 23, 1980
Filed:
Feb. 02, 1978
Applicant:
Inventors:
John S Ayers, Palmerston North, US;
Geoffrey S Bethell, Palmerston North, US;
William S Hancock, Palmerston North, US;
Milton T Hearn, Dunedin North, US;
Assignee:
Development Finance Corporation of New Zealand, Wellington, NZ;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08B / ;
U.S. Cl.
CPC ...
536 32 ; 2601 / ; 2601 / ; 260-6 ; 536 43 ; 536 44 ; 536 48 ; 536 49 ; 536 50 ; 536107 ; 536108 ; 536110 ; 536115 ;
Abstract
Carbonylation of a polysaccharide and the product of that carbonylation. The carbonylated product can be used to prepare an affinity chromatography matrix which is an uncharged species of varying pH's. The carbonylated product is also useful for the preparation of other compounds. Typical polysaccharides are agarose, starch, dextran, cellulose and regenerated cellulose and typical carbonylating agents are N,N'-carbonyl diimidazole; N,N' carbonyl di-1,2,3-benzotriazole; and N,N'-carbonyl di-1,2,4-triazole.