Abstract: Biodegradable, alkali stable, non-ionic surfactants are disclosed which feature the formula: ##STR1## wherein R is a linear, alkyl hydrocarbon radical having an average of from 16 to 18 carbon atoms; R' is methyl or ethyl; a has an average value of 9 to 15 and b has an average value of 3 to 5; the ratio of a:b being from 2.7:1 to 3.5:1.

Abstract: Novel surface active agents are disclosed having the formula: ##STR1## wherein R is hydrogen, an alkyl, alkenyl, aryl or aralkyl group; each R' is independently selected from the same group as R with the proviso that at least a majority of R' radicals attached to each Si atom are sterically hindered alkyl groups having at least 3 carbon atoms; R" is alkyl or alkenyl of 1-20 carbons; R'" is hydrogen or methyl; and n is an integer of from about 5 to about 50.

Abstract: An additive composition which can be adapted into conventional automatic dishwasher detergents for reducing foam during use thereof, comprising:A. a nonionic surface active agent having the formula: ##STR1## wherein R is a substantially linear, alkyl radical having an average from about 6 to about 12 carbon atoms,R' is a linear, alkyl radical of 1 to about 4 carbon atoms,R" is a linear, alkyl radical of 1 to about 4 carbon atoms,x is an integer of 1 to about 6,y is an integer of about 4 to about 20, andz is an integer of about 4 to about 25, andB. an alkyl phosphate ester having an average of 16 to 28 carbon atoms in the alkyl radical; andWherein the weight ratio of (A):(B) is from about 1:1 to about 99:1.

Abstract: Low foaming biodegradable, liquid, non-gelling and nonionic surfactants are claimed having the formula: ##EQU1## wherein R is a linear, alkyl hydrocarbon having an average from about 7 to 10 carbon atoms, R' is a linear, alkyl hydrocarbon of about 1 to about 4 carbon atoms, R" is a linear, alkyl hydrocarbon of about 1 to about 4 carbon atoms, x is an integer of about 1 to about 6, y is an integer of about 4 to about 15 and z is an integer of about 4 to 25.