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AssigneeUniversity of Pittsburgh—Of the Commonwealth System of Higher Education
InventorsEric J. Beckman, W. Eamon Carroll, Toby Chapman, Kristen E. Minnich, Dennis Sagl, Richard J. Goddard
Estimating the term…
A composition includes at least one hydrophilic polymer containing primary (—NH2) and/or secondary (—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.
A composition comprising water, paper product pulp, and a component formed by a partial cross-linking reaction of at least one sugar containing a reducible function and 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 wherein further cross-linking of the component is induced after addition of the component to the water and paper product pulp.
A composition comprising paper product pulp and a component formed from at least one sugar containing a reducible function and 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 wherein the at least one hydrophilic polymer and the sugar are at least partially cross-linked before being contacted with the paper product pulp, further cross-linking of the partially cross-linked at least one hydrophilic polymer and the sugar being induced after addition of the component to the paper product pulp.
Dependencies are inferred from the claim text.