Micellar solutions of thin film spreading agents comprising an acylated polyether polyol

Claim 1

A homogeneous micellar thin film spreading agent solution, comprising: (1) from between about 5% and about 75% by weight of an acylated polyether polyol having the formula: ##STR5## wherein: A is an alkylene oxide group, --C i H 2i O--; O is oxygen; i is a positive integer from 2 to about 10; j is a positive integer no greater than about 100; k is a positive integer no greater than about 100; N is nitrogen; R 1 is one of hydrogen, a monovalent hydrocarbon group containing less than about C 11 , or [A L H]; L is a positive integer no greater than about 100; R is a hydrocarbon moiety of a polyol, a primary or secondary amine, a primary or secondary polyamine, a primary or secondary amino alcohol, or hydrogen; and m+n is no greater than about 4 when R is other than hydrogen and one of m and n is zero and the other is unity when R is hydrogen. said acylated polyether polyol being the reaction product of said polyether polyol and a member selected from the class consisting of mono- and polybasic carboxylic acids, acid anhydrides, and iso-, diiso-, and polyisocyanates, said acylated polyether polyol at about 25° C.: (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface between distilled water and refined mineral oil to form a spreading film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm; (1) from between about 2% and about 30% by weight of a hydrotropic agent having one of the formulas: X--Z (A) wherein X is an alkyl, alicyclic, aromatic, alkylalicyclic, alkylaryl, arylalkyl, alicyclicalkyl, heterocyclic or substituted heterocyclic radical having 2 to 13 carbon atoms; and wherein Z is one of: ##STR6## where U and V are hydrogen or hydrocarbon substituents; X--Y--R--(Z).sub.n, (B) wherein: Z is one of ##STR7## X is an alkyl, alicyclic, aromatic, alkylalicyclic, alkylaryl, arylalkyl, alicyclicalkyl, heterocyclic or substituted heterocyclic radical having 2 to 12 carbon atoms; R is a member selected from the class consisting of, --CH 2 --, --C 2 H 4 --, C 3 H 5 ═, --C 3 H 6 , and --C 2 H 4 --O--C 2 H 4 --; n is either a one or two integer, the integer dependent upon the selection of R; Y is a member selected from the class consisting of: ##STR8##and U and V are hydrogen or hydrocarbon substituents; (3) from between about 2% and about 30% by weight of an amphipathic agent having at least one radical having from between about 10 and about 64 carbon atoms per molecule; and (4) from between about 15% and about 90% by weight, water.