Main > PAPER & PULP > Production > Polymer > Cationic Polymer > Poly(Acrylamide). Poly(Ethyleneimin

Product DE. B

PATENT ASSIGNEE'S COUNTRY Germany
UPDATE 10.00
PATENT ASSIGNEE This data is not available for free
PATENT CLAIMS (a) Adding (1) & (2) water-soluble cationic polymers in succession to pulp, after addition, the pulp is subjected to at least one shearing stage, & flocculating mixt by adding a flocculating agent selected from bentonite, colloidal silica & clay
(B) Forming a sheet from mixt
(C) Drying sheet
Wherein
(1) is Poly(Ethyleneimine) with MW > 500,000 in amount 0.001-0.8%
(2) Poly(Acrylamide), MW > 4,000,000 in amount 0.001-0.8%
PATENT PHOTOCOPY Available on request

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