Abstract: A polymer having a first monomer operatively connected to Rose Bengal, a second monomer, and a surfactant, wherein the surfactant is selected from the group consisting of ionic surfactants, anionic surfactants, cationic surfactants, nonionic surfactants, zwitterionic surfactants, and mixtures thereof. The Rose Bengal in polymer in an amount effective for rendering the polymer antimicrobial or antiviral upon exposure of said polymer to light; and the polymer produces singlet oxygen from air in the presence of light. A substrate have these features is also included.

Abstract: A polymer having a first monomer operatively connected to Rose Bengal, a second monomer, and a surfactant, wherein the surfactant is selected from the group consisting of ionic surfactants, anionic surfactants, cationic surfactants, nonionic surfactants, zwitterionic surfactants, and mixtures thereof. The Rose Bengal in polymer in an amount effective for rendering the polymer antimicrobial or antiviral upon exposure of said polymer to light; and the polymer produces singlet oxygen from air in the presence of light. A substrate have these features is also included.

Abstract: New sizing compositions containing: (a) a compound selected from the group consisting of alkenyl succinic anhydrides, alkyl ketene dimers and mixtures thereof and (b) a metal salt selected from the group of metals consisting of zirconium, hafnium, titanium and mixtures thereof are described. The use of the above sizing compositions during paper making provides paper products having superior liquid storage properties, especially liquid foods such as milk, juices, etc.

Abstract: An aqueous surface sizing composition for sizing paper or paperboard having as essential components 50 to 70 pads of a water soluble or water dispersible hydroxylated polymer, an amount of a carboxylated polymer that is present relative to hydroxylated polymer in a ratio of 0.5:99.5 to 4:96 and not exceeding 7 pads carboxylated polymer, 0.3 to 3.0 pads of an alkali salt of a Group IV metal (e.g., zirconium, hafnium, and titanium), and sufficient water to obtain 1.5 to 2.0 percent total solids. The sizing compositions may further include polymeric additives, aqueous alkali, a pigment and a defoamer.

Abstract: This invention relates to an improved process of surface sizing of paper and paperboard. The process consists of:a) Preparing an aqueous surface sizing compound by combining and mixing an aqueous solution of at least one water soluble or dispersible polymer or interpolymer, a solution or dispersion of auxiliary materials, and an aqueous solution of a metal salt, selected from the group of metals consisting of zirconium, hafnium or titanium, to the polymer solution;b) Adjusting the pH of the aqueous sizing compound from about 5 to about 10.