Paper fiber additive containing polyacrylamide blended with glyo

Details Paper fiber additive containing polyacrylamide blended with glyo Paper fiber additive containing polyacrylamide blended with glyo

1978-11-06

1980-08-12

Turer, Richard B.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

162166, 162168NA, 260 296WB, D21D 300, D21H 352

Patent

active

042174252

ABSTRACT:
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. A dosage of 0.2-5% by weight (preferred 0.5-2% by weight) based on the dry weight of fiber is utilized.

REFERENCES:
patent: 3556932 (1971-01-01), Coscia

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