Patent classifications
B01D19/0463
Cyclic ketal compounds having long side chains useful as foam control agents in the manufacture of food and beverage products
Cyclic ketal compounds provide excellent foam protection when having at least one moiety of a threshold size (comprising 4 or more carbon atoms) pendant from a ketal carbon. The carbons in such moieties may be present in one or more chains. The cyclic ketal compounds of the present invention are compatible with foodstuff manufacturing. In particular, it has been discovered that the cyclic ketal compounds of the present invention exhibit excellent foam control performance in both potato and sugar beet processing systems.
CYCLIC KETAL COMPOUNDS HAVING LONG SIDE CHAINS USEFUL AS FOAM CONTROL AGENTS IN THE MANUFACTURE OF FOOD AND BEVERAGE PRODUCTS
Cyclic ketal compounds provide excellent foam protection when having at least one moiety of a threshold size (comprising 4 or more carbon atoms) pendant from a ketal carbon. The carbons in such moieties may be present in one or more chains. The cyclic ketal compounds of the present invention are compatible with foodstuff manufacturing. In particular, it has been discovered that the cyclic ketal compounds of the present invention exhibit excellent foam control performance in both potato and sugar beet processing systems.
DEFOAMER COMPOSTION
The invention relates to a defoamer composition. The invention also relates to a method for reducing or preventing foam in an aqueous composition. The defoamer composition of the invention comprises at least one hydrophobic liquid; and at least one modified polyacrylate polymer. The modified polyacrylate polymer is obtainable by a process comprising 1. polymerizing at least one acrylate monomer selected from substituted or unsubstituted C.sub.1-C.sub.22 alkyl acrylates, substituted or unsubstituted C.sub.4-C.sub.22 cycloalkyl acrylates, substituted or unsubstituted C.sub.1-C.sub.22 acrylamides, esters of acrylic acid with polyalkylether alcohol, or combinations of two or more thereof, to obtain at least one polyacrylate polymer; and 2. modifying the at least one polyacrylate polymer obtained in step (i) by transesterification with at least one alcohol selected from (c1) at least one unsubstituted C.sub.8-C.sub.36 alcohol, (c2) at least one polyalkylether alcohol, or combinations of two or more thereof.