Package capable of preventing foam formation, method of manufact

Details Package capable of preventing foam formation, method of manufact Package capable of preventing foam formation, method of manufact

1988-03-22

1989-10-24

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

428 342, 428 3692, 428407, 4284111, 4285375, 428704, 25217421, 252305, 252321, 252358, B65D 8572, D21H 140

Patent

active

048761222

ABSTRACT:
A package capable of preventing the formation of foam when being filled with liquid aqueous products, in which at least a part of the inside of the package is coated on the inside with an antifoaming agent which comprises an antifoaming, water-insoluble compound encapsulated in crystalline urea. In the manufacture of the package, the crystalline urea and the antifoaming compound are dissolved in a mixture of water and an organic solvent forming a solution, and applying the solution to at least a part of the inner side of the material forming the package, whereupon the solvent is driven off.

REFERENCES:
patent: 4275244 (1981-06-01), Helfert et al.
patent: 4364777 (1982-12-01), Grunert et al.
patent: 4522740 (1985-06-01), Schmid et al.
patent: 4548729 (1985-10-01), Schmid et al.
patent: 4624713 (1986-11-01), Morganson et al.
Encyclopedia of Polymer Science & Technology, vol. 2 pp. 166-168, & vol. 13 p. 410, (Antifoaming Agents & Surface-active Agents).

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