Food or edible material: processes – compositions – and products – Packaged or wrapped product – Canned
Patent
1975-08-13
1976-11-09
Rzucidlo, Eugene C.
Food or edible material: processes, compositions, and products
Packaged or wrapped product
Canned
220 1BC, 220 64, 426398, B65D 112
Patent
active
039912167
ABSTRACT:
Water-based coating compositions for use as internal sanitary liners for metal containers containing beer, carbonated and noncarbonated soft drinks, and fruit juices consist essentially of aqueous dispersions of amine-solubilized interpolymers, said interpolymers being formed from substituted carboxylic acid amide units; ethylenically unsaturated acid units; hardening units from monomers such as styrene, vinyl toluene or alkyl methacrylates having from 1 to 4 carbon atoms and flexibilizing units from certain alkyl acrylates or methacrylates. The interpolymers are solubilized by neutralizing the acid units of the interpolymer with monomeric amines. In order to produce a stable composition, the amount of amine utilized in neutralizing the acid groups of the interpolymer should be sufficient to produce at least 0.200 milliequivalents of salt per gram of resin solids. These compositions provide containers with cured liners which do not impart undesirable turbidity or taste characteristics to the beer, soft drink, or fruit juices packaged therein.
REFERENCES:
patent: 3037963 (1962-06-01), Christenson
patent: 3117693 (1964-01-01), Vogel
patent: 3247139 (1966-04-01), Christenson et al.
patent: 3860549 (1975-01-01), Sekmakas
Christenson Roger M.
Maska Rudolf
PPG Industries Inc.
Rzucidlo Eugene C.
Troy Frank J.
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