University of Pittsburgh

Snf Sa

Toby Chapman

Eric John Beckman

Kristen Elaine Minnich

Dennis Sagl

Richard Joseph Goddard

W Eamon Carroll

Harold E Swift

Christopher C Capelli

Cedrick Favero

William Eamon Carroll

Lianjun Shi

A composition includes at least one hydrophilic polymer containing primary (&#x2014;NH) and/or secondary (&#x2014;NHR) amine groups and at least one saccharide containing a reducible function. A method of increasing the strength of paper includes the step of contacting the paper with a composition comprising (i) at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function. A hydrogel composition is formed from a mixture of at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function.

Cellulosic composition

A method of synthesizing a compound having the formula: comprising the step of: 

N-vinylformamide derivatives, polymers formed therefrom and synthesis thereof

Method for increasing the strength of a cellulosic product

A process to produce N-vinylformamide includes the steps of: reacting hydroxyethyl formamide with a reactant comprising at least one cyclic anhydride group to form an ester, and dissociating the ester via heat in a thin film evaporation to synthesize N-vinylformamide and a compound comprising at least one diacid group, the N-vinylformamide separating from the diacid during the thin film evaporation. The reactant including at least one cyclic anhydride group can, for example, be succinic anhydride, maleic anhydride, phthalic anhydride, (2-docecen-1-yl)succinic anhydride, exo-3,6-epoxy-1,2,3,6-tetrahydrophthalic anhydride or a polymer including at least one cyclic anhydride group. A process to produce N-vinylformamide comprises the steps of: mixing acetaldehyde, formamide and a source of anhydride in a single reaction vessel, reacting the acetaldehyde, formamide and the source of anhydride in the reaction vessel under pressure, dissociating an ester formed by a reaction between the source of anhydride and hydroxyethyl formamide formed in the reaction vessel to synthesize N-vinylformamide and a compound comprising at least one diacid group.

Synthesis of N-vinylformamide

A biocompatible emulsifier for forming stable emulsions is disclosed. The emulsifier is particularly useful for emulsions of biological fluids, such as artificial blood, and for emulsions as drug delivery vehicles.

Biocompatible emulsifier

Growing community of inventors

Pittsburgh, PA, United States of America

Toby Chapman