Fungicidal paper

Drug – bio-affecting and body treating compositions – Solid synthetic organic polymer as designated organic active... – Polymer from ethylenic monomers only

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424258, 424287, 424294, 428907, D21H 522

Patent

active

039989445

ABSTRACT:
Paper sheets, such as for use as the cover sheet of gypsum wallboard and the like, are rendered mildew-resistant by adding to the paper at the calende calender rolls an aqueous dispersion containing a heavy metal salt of quinolinolate, a paper coating binder and a colloidal suspending agent. A particularly preferred aqueous dispersion contains about 5-40% of a 30% active copper-8-quinolinolate paste concentrate; about 3-30% of a wax binder, preferably about 5-60% of an about 50% active wax emulsion such as of PARACOL 404 R; and a small amount of a generally non-thickening colloidal suspending agent preferably a xanthan gum.

REFERENCES:
patent: 2457025 (1948-12-01), Benignus
patent: 2594384 (1952-04-01), Benignus
patent: 2765255 (1956-10-01), Swarbrick
patent: 3232929 (1966-01-01), McNeely
patent: 3410678 (1968-11-01), Ratledge
patent: 3705938 (1972-12-01), Hyman
patent: 3720767 (1973-03-01), Ohmori
Amer. Prof. Pham., vol. 7, May 1941, pp. 296-297.

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