Ammonia-containing sizing compositions

Details Ammonia-containing sizing compositions Ammonia-containing sizing compositions

1975-03-31

1977-05-10

Morris, Theodore

Compositions: coating or plastic

Coating or plastic compositions

Natural resin or derivative containing

106219, 106236, 260102, C08L 9304

Patent

active

040226344

ABSTRACT:
Novel sizing compositions comprising an aqueous mixture of ammonia, an ammonium salt, and a rosin that is modified with from about 5 to 50 percent based on the weight of the rosin, of an organic acidic compound selected from the group consisting of an .alpha., .beta.-unsaturated organic acid, an anhydride thereof, and their mixtures. In one embodiment, the ammonia and ammonium salt are produced as the reaction product of urea and an acid selected from the group consisting of sulfamic acid, phosphoric acid, oxalic acid, methane-sulfonic acid, trichloracetic acid, nitric acid, sulfuric acid, hydrochloric acid, stearic acid, and acetic acid. The method of making the sizing compositions and paper which is sized with the sizing compositions are also provided.

REFERENCES:
patent: 2192488 (1940-03-01), Reilly
patent: 2288060 (1942-06-01), Arleoter et al.
patent: 2331925 (1943-10-01), Olson
patent: 2721504 (1955-10-01), Yngve
patent: 3186901 (1965-06-01), Peterson et al.
patent: 3804788 (1974-04-01), Funaoka
Chem. Abst. vol. 73:67837d.

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