The present disclosure provides compositions and methods for increasing the strength of paper. Some of the methods include reacting a cationic dialdehyde-modified polyacrylamide polymer with an amphoteric polymer to form a mixture, monitoring a pH of the mixture, optionally adjusting the pH of the mixture to a value from about 7.5 to about 14, holding the mixture at the value for a period of time to form a crosslinked polymer, and adding the crosslinked polymer to a pulp furnish.

The present disclosure provides compositions and methods for increasing the strength of paper. Some of the methods include reacting a cationic dialdehyde-modified polyacrylamide polymer with an amphoteric polymer to form a mixture, monitoring a pH of the mixture, optionally adjusting the pH of the mixture to a value from about 7.5 to about 14, holding the mixture at the value for a period of time to form a crosslinked polymer, and adding the crosslinked polymer to a pulp furnish.

The present disclosure relates to food safe water resistant articles, which include recyclable cellulosic utensils having a food safe water resistant material. In addition, food safe water resistant composition used for preparing food safe water resistant articles as well as use of the same are also disclosed.

Compositions and colloidal particles are provided that may be used to improve a papermaking process. The compositions and colloidal particles may include a polymer and an inorganic salt. A papermaking process carried out using the presently disclosed compositions and colloidal particles may produce a paper product that has increased strength properties.

Compositions and colloidal particles are provided that may be used to improve a papermaking process. The compositions and colloidal particles may include a polymer and an inorganic salt. A papermaking process carried out using the presently disclosed compositions and colloidal particles may produce a paper product that has increased strength properties.