Process for foam lowering in dispersed rosin size

Details Process for foam lowering in dispersed rosin size Process for foam lowering in dispersed rosin size

1983-04-21

1984-07-24

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Natural resin or derivative containing

260101, C08L 9304, C09F 104

Patent

active

044616465

ABSTRACT:
A series of inorganic salts are disclosed for their efficacy in lowering surfactant requirements and foam in aqueous dispersed rosin size. The salts are best employed as additives to the surfactant prior to addition of surfactant to molten rosin during preparation of the aqueous dispersion. Selected chlorides, fluorides, nitrates and sulfates of aluminum, calcium, cobalt, lead, magnesium, sodium and tin are disclosed as being effective within a range of about 0.01% to 0.1% by weight of rosin at a surfactant level of about 3.5%. Aluminum nitrate at a level of 0.04 to 0.055% by weight of the rosin, at a surfactant level of 3.5%, is preferred.

REFERENCES:
patent: 1947498 (1934-02-01), Scholz
patent: 2199206 (1940-04-01), Maters et al.
patent: 2873203 (1959-02-01), Hopkins et al.
patent: 4071375 (1978-01-01), Ishibe et al.
patent: 4267099 (1981-05-01), Okumichi et al.
patent: 4309338 (1982-01-01), Okumichi et al.

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