US7488403B2 - Blends of glyoxalated polyacrylamides
Compositions comprising a blend of two or more paper strengthening agents have improved stability compared with previously known paper strengthening agents. One component is a polymeric paper strengthening agent, preferably a wet strengthening agent. The other component is a stabilized glyoxalated polyacrylamide prepared by (1) reacting a first portion of glyoxal with a polyacrylamide having
Compositions comprising a blend of two or more paper strengthening agents have improved stability compared with previously known paper strengthening agents. One component is a polymeric paper strengthening agent, preferably a wet strengthening agent. The other component is a stabilized polyacrylamide prepared by (1) reacting a first portion of glyoxal with a polyacrylamide having pendant amide
Blends of glyoxalated polyacrylamides and paper
Compositions comprising a blend of two or more paper strengthening agents have improved stability compared with previously known paper strengthening agents. One component is a polymeric paper strengthening agent, preferably a wet strengthening agent. The other component is a stabilized glyoxalated polyacrylamide prepared by (1) reacting a first portion of glyoxal with a polyacrylamide having
1. A composition for enhancing the wet strength of paper comprising a blend of two components: (a) a polymeric paper strengthening agent; and (b) a stabilized glyoxalated polyacrylamide in a concentration of between about 1% and about 35% by weight of the two components, wherein the stabilized glyoxalated polyacrylamide is prepared by (1) reacting a first portion of glyoxal with a
EP2358941B1 - Blends of glyoxalated polyacrylamides
EP2358941B1 EP09761116.4A EP09761116A EP2358941B1 EP 2358941 B1 EP2358941 B1 EP 2358941B1 EP 09761116 A EP09761116 A EP 09761116A EP 2358941 B1 EP2358941 B1 EP 2358941B1 Authority EP European Patent Office Prior art keywords composition polyacrylamide paper cationic polymer Prior art date 2008-11-21 Legal status (The legal status is an assumption and is not a legal conclusion.
Synthesis and Thermal Stability of Glyoxalated Alkali Lignin-Polyvinylpyrrolidone Resins Aikfei Ang,a,* Zaidon Ashaari,a Edi S. Bakar,a and Ibrahim Nor Azowab Natural, renewable, and non-toxic lignin-based resin was synthesized through copolymerization with monomeric N-vinyl-2-pyrrolidone (VP) in
specification anionic polyacrylamide paper making
Polyacrylamides are produced by the polymerization of acrylamide (C3H5NO), a compound obtained by the hydration of acrylonitrile. Polyacrylamide Applications in Papermaking Industry With more adding of the anionic polyacrylamide, there is only a little influence to the paper strength, but the paper evenness gradually gets worse.
This paper presents a novel strategy to prepare nano-lignin and its composites with natural rubber. The nano- lignin was ontained by fabricating colloidal lignin-Poly (diallyldimethylammonium
Johnston, GA - Patent applications
BLENDS OF GLYOXALATED POLYACRYLAMIDES AND PAPER STRENGTHENING AGENTS - Compositions comprising a blend of two or more paper strengthening agents have improved stability compared with previously known paper strengthening agents. One component is a polymeric paper strengthening agent, preferably a wet strengthening agent.
About the journal. BioResources (ISSN: 1930-2126) is a peer-reviewed online journal devoted to the science and engineering of lignocellulosic materials, chemicals, and their applications for new uses and new capabilities. An impact factor of 1.396 is listed in the 2025 Journal Citation Reports. View our current issue. Browse Volumes and Issues. Submit a Manuscript
Presidential Green Chemistry Challenge Awards Program
Previously, papermakers who needed to improve paper strength were limited to adding costly pulps, increasing mechanical treatment that expends significant energy, or using various chemical additives such as glyoxalated polyacrylamides and polyacrylamide copolymers.
This article describes a silica sol, which contains a high content of microgel and aluminum modified has high specific surface area particles. Preparation route may include water glass solution was acidified, basified, and an aluminum grain growth modifier containing at certain dry matter. Sol particularly suitable for the paper industry as additives in combination with cationic polymers.
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