Chemical compositions useful as paper sizing agents and method o

Details Chemical compositions useful as paper sizing agents and method o Chemical compositions useful as paper sizing agents and method o

1980-04-07

1982-06-08

Lusignan, Michael R.

Paper making and fiber liberation

Processes and products

Non-fiber additive

162175, 162177, 162180, 106200, 106212, 106218, 427391, 427395, 524272, 524548, D21D 300, D21H 328, D21H 334, C09D 340

Patent

active

043337953

ABSTRACT:
Stable aqueous dispersions which are useful as one-shot sizing agents for paper, i.e. which do not require the separate addition of a flocculating agent, are prepared by combining a rosin dispersion, aluminum sulfate, and an alkali in a prescribed manner. The dispersions may also contain an added stabilizer such as a starch derivative, hydroxyethyl cellulose, or polyvinyl pyrrolidone if desired. These compositions can be used for either internal or external sizing.

REFERENCES:
patent: 3419465 (1968-12-01), Maruta
patent: 3421976 (1969-01-01), Jones
patent: 3565755 (1971-02-01), Davison
patent: 4029885 (1977-06-01), Buikema
patent: 4207223 (1980-06-01), Schulde et al.

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