EDWARD O DINGILIAN
Engineering in Newark, DE
License number
Massachusetts 38155
Issued Date
Jun 30, 1994
Expiration Date
Jun 30, 2006
Type
Mechanical Engineer
Address
Address
Newark, DE 19711
Personal information
See more information about EDWARD O DINGILIAN at radaris.comName
Address
Phone
713 Fiske Ln, Newark, DE 19711
Newark, DE
713 Fiske Ln, Newark, DE 19711
713 Fiske Ln, Newark, DE 19711
916 Rahway Dr, Newark, DE 19711
Professional information
See more information about EDWARD O DINGILIAN at trustoria.com
N-Halochitosans, Their Preparation And Uses
N-Halochitosans, Their Preparation And Uses
US Patent:
5204452, Apr 20, 1993
Filed:
Nov 14, 1990
Appl. No.:
7/613602
Inventors:
Edward C. Dingilian - Newark DE
George E. Heinsohn - Elkton MD
George E. Heinsohn - Elkton MD
Assignee:
E. I. Du Pont de Nemours and Company - Wilmington DE
International Classification:
C02F 156
US Classification:
530420
Abstract:
A process for inducing flocculation involving the mixing of an aqueous solution of a chitosan salt with a material to be flocculated (e. g. , oil, algae, or the like) and then adding a halogenating agent (e. g. , sodium hypochlorite) thus forming a N-halochitosan.
N-Halochitosans, Their Preparation And Uses
N-Halochitosans, Their Preparation And Uses
US Patent:
5362717, Nov 8, 1994
Filed:
Feb 24, 1993
Appl. No.:
8/021825
Inventors:
Edward O. Dingilian - Newark DE
George E. Heinsohn - Elkton MD
George E. Heinsohn - Elkton MD
Assignee:
Vanson L. P. - Redmond WA
International Classification:
A61K 3173, A61K 3170, C07H 506, C08B 3708
US Classification:
514 55
Abstract:
N-Halochitosans which are terpolymers containing 1 to 35% of 2-deoxy-2-acetaminodoglucose monomeric units, 1 to 90% of 2-deoxy-2-haloaminoglucose monomeric units, and 8-98% of 2-deoxy-2-haloaminoglucose monomeric units wherein the halogen is chlorine or bromine and their preparation is disclosed. The preferred preparation is by treatment of an aqueous solution of a chitosan salt with a halogenating agent.