us20060037727a1 - blends of glyoxalated polyacrylamides

US20060037727A1 - Blends of glyoxalated polyacrylamides

US20060037727A1 - Blends of glyoxalated polyacrylamides and paper strengthening agents - Google Patents Compositions comprising a blend of two or more paper strengthening agents have improved...

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us8435382b2 - high solids glyoxalated polyacrylamide

US8435382B2 - High solids glyoxalated polyacrylamide

Storage-stable glyoxalated polyacrylamide polymers and high solids aqueous compositions formulated with them are described. These glyoxalated polyacrylamide compositions can be used as additives for papermaking, providing paper with good dry and temporary wet strength, and increasing papermaking de-watering rates.

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us4217425a - paper fiber additive containing

US4217425A - Paper fiber additive containing

A blend which contains homopolymers useful for imparting wet and dry strength to pulp and paper fibers which comprises a major amount of non-ionic polyacrylamide, together with glyoxal to impart crosslinking and polymeric diallyldimethyl ammonium chloride (DADMAC) as a cationic modifier. A buffer such as tetrasodium pyrophosphate may be used.

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characterization and optimization of the glyoxalation of a

Characterization and Optimization of the Glyoxalation of a

old glyoxalated lignin solution shows increased viscosity if compared to fresh glyoxalated lignin solution. This is due to the monomers and lower molecular mass oligomers such as dimers polymerized into structures of higher molecular weight as a consequence of their condensation with glyoxal and the formation of glyoxylene bridges between them.

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us9637865b2 - method for producing polyacrylamide

US9637865B2 - Method for producing polyacrylamide

Disclosed is a method for producing an aldehyde crosslinked polyacrylamide composition useful for strengthening paper. The method includes steps, wherein a) an aldehyde crosslinker and polyacrylamide are mixed in water to form an aqueous solution of aldehyde crosslinked polyacrylamide prepolymer; b) acid is added to the aqueous prepolymer solution to adjust the pH of the solution to a value

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us5951719a - process of after-treating dyed cellulose

US5951719A - Process of after-treating dyed cellulose

US5951719A US09/094,929 US9492998A US5951719A US 5951719 A US5951719 A US 5951719A US 9492998 A US9492998 A US 9492998A US 5951719 A US5951719 A US 5951719A Authority US United States Prior art keywords process polymer acrylamide fabric glyoxalated Prior art date 1998-06-15 Legal status (The legal status is an assumption and is not a legal conclusion.

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blends technology focus report - natureworks

Blends Technology Focus Report - NatureWorks

Polyethylene oxide (PEO) and polypropylene oxide (PPO) have been blended with PLA. Lower molecular weight glycols (300-1000 Mw) are miscibleiiwith PLA while PPO becomes immiscible at higher molecular weight. These polymers, especially PEO, can be used to increase the water transmission and bio-degradation rate of PLA.

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glyoxal in application - basf intermediates

Glyoxal in application - BASF Intermediates

Since its discovery in 1856, glyoxal has become an important intermediate for many chemical applications.Established in the paper and the textile industry as a crosslinker, glyoxal starts to unfold its diverse properties in enhanced oil recovery and in crosslinking proteins for bioplastics. User industries benefit from the numerous positive properties of glyoxal.

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handbook of paper and board - pdf free download

Handbook of Paper and Board - PDF Free Download

Handbook of Paper and Board Edited by Herbert HolikHandbook of Paper and Board. 91 Melamine-Formaldehyde Resins 92 Urea-Formaldehyde Resins 92 Epoxidised Polyamide Resins 92 Glyoxalated Polyacrylamide Resins 93 Other Wet-Strength Resins 94 Additives for Recovered Fiber Processing 94 Additives for Repulping 94 Additives for Deinking 95

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