Process for sizing paper with anionic hydrophobic sizing agents

Details Process for sizing paper with anionic hydrophobic sizing agents Process for sizing paper with anionic hydrophobic sizing agents

1990-02-28

1993-04-13

Chin, Peter

Paper making and fiber liberation

Processes and products

Non-fiber additive

1621643, 1621646, 1621682, 162175, 162179, D21H 1714

Patent

active

052019985

ABSTRACT:
Sizing agents of which some are novel and which have at least one anionic or acidic group which is optionally in the form of a salt and at least two hydrophobic substituents which each have at least 5 carbon atoms, at least two of the most adjacent hydrophobic substituents being bonded to each other with a linking member which has at least 2 hetero atoms, are particularly suitable for use, together with commercially available polymeric, cationic retention aids, in a process for sizing paper or cardboard.

REFERENCES:
patent: 3296065 (1967-01-01), O'Brien et al.
patent: 3652563 (1972-03-01), Petersen et al.
patent: 3692885 (1972-09-01), Anello et al.
patent: 4317756 (1982-03-01), Dumas
patent: 4536254 (1985-08-01), Falk et al.
patent: 4623428 (1986-11-01), Bernheim et al.

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