초록 ▼

Water soluble wet strength resins containing maleamic acid and at least one other ethylenically unsaturated monomer, such as vinyl esters, olefins, acrylic and/or methyacrylic acids and/or their esters and/or their amindes are useful in the preparation of paper products having improved, off-machine

Water soluble wet strength resins containing maleamic acid and at least one other ethylenically unsaturated monomer, such as vinyl esters, olefins, acrylic and/or methyacrylic acids and/or their esters and/or their amindes are useful in the preparation of paper products having improved, off-machine dry strength and wet strength properties.

대표청구항 ▼

A cellulosic fibrous web wherein the cellulose fibers are chemically modified by a cross-linking reaction with a wet strength resin comprising a water soluble copolymer comprised of (A) a half-acid, half-amide corresponding to the following general formula: [Figure] wherein R′is H and R is a hydroca

A cellulosic fibrous web wherein the cellulose fibers are chemically modified by a cross-linking reaction with a wet strength resin comprising a water soluble copolymer comprised of (A) a half-acid, half-amide corresponding to the following general formula: [Figure] wherein R′is H and R is a hydrocarbon chain containing a double bond which has radically polymerized with (B) at least one other ethylenically unsaturated monomer.