Neutralization of phosphate esters, compositions based upon and methods using same
AssigneeWalter Merton Co., Inc.
InventorArnold W. Fogel
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Abstract
The present invention relates to synthetic, novel, preferably fatty phosphoric acid esters which, when neutralized with a neutralizing agent, is revealed as a new surface active agent. Formulations are presented which demonstrate a method for using the disclosed surface active agent to prepare stable oil-in-water, water-in-oil emulsions and various solutions of varying polarity and viscosity for use in a variety of dermatological applications, and/or wherever emulsions or solutions according to the present invention may be used.
Claims18
An isolated, crystallized composition consisting essentially of a compound produced from the reaction of a phosphoric acid ester compound of the formula:
- where R1 and R2 are H or a linear, cyclic or branch chained saturated or unsaturated C8-C40 hydrocarbon group, a —(R3—O)m—R4 group, a —R5—O—(R3—O)m—R4 group or a
- group,
- where R3 is a C2-C6 alkylene group, R4 is H or a linear, cyclic or branch chained saturated or unsaturated C8-C40 group, a
- group or a
- group, R5 is a C2-C18 alkylene group, R6 is a linear, cyclic or branch chained saturated or unsaturated C8-C40 hydrocarbon group and m is an integer from 0 to 150, R7 is H or a linear, cyclic or branch-chained saturated or unsaturated C1-C22 hydrocarbon group or a C1-C22 alcohol group and R8 is a C1-C22 linear, cyclic or branched chain saturated or unsaturated hydrocarbon group, and an active boron salt neutralizing agent, with the proviso that when R1 is H, R2 cannot also be H.
An isolated, crystallized composition consisting essentially of a phosphoric acid ester compound according to the structure:
- where R1 and R2 are H or a linear, cyclic or branched chained saturated or unsaturated C8-C40 hydrocarbon group, a —(R3—O)m—R4 group, a —R5—O—(R3—O)m—R4 group or a
- group, where R3 is a C2-C6 alkylene group or a mixture of ethylene and propylene groups, R4 is H or a linear, cyclic or branch chained saturated or unsaturated C8-C40 group, a
- group or a
- group, R5 is a C2-C18 alkylene group, R6 is a linear, cyclic or branch chained saturated or unsaturated C8-C40 hydrocarbon group and m is an integer from 0 to 150, R7 is H or a linear, cyclic or branch-chained saturated or unsaturated C1-C22 hydrocarbon group or a C1-C22 alcohol group and R8 is a C1-C22 linear, cyclic or branched chain saturated or unsaturated hydrocarbon group, and X is Na2B4O7, with the proviso that when R1 is H, R2 cannot also be H.
An isolated, crystallized composition consisting essentially of the reaction product of a phosphoric acid ester compound of the formula:
- where R1 and R2 are H or a linear, cyclic or branch chained saturated or unsaturated C8-C40 hydrocarbon group, a —(R3—O)m—R4 group, a —R5—O—(R3—O)m—R4 group or a
- group,
- where R3 is a C2-C6 alkylene group, R4 is H or a linear, cyclic or branch chained saturated or unsaturated C8-C40 group,
- a
- group or a
- group, R5 is a C2-C18 alkylene group, R6 is a linear, cyclic or branch chained saturated or unsaturated C8-C40 hydrocarbon group and m is an integer from 0 to 150, R7 is H or a linear, cyclic or branch-chained saturated or unsaturated C1-C22 hydrocarbon group or a C1-C22 alcohol group and R8 is a C1-C22 linear, cyclic or branched chain saturated or unsaturated hydrocarbon group, and a neutralizing agent selected from the group consisting of sodium tetraborate tetrahydrate, sodium tetraborate decahydrate and mixtures thereof, with the proviso that when R1 is H, R2 cannot also be H.
An isolated, crystallized phosphoric acid ester composition consisting essentially of a compound according to the structure:
- where R1 and R2 are H or a C16H33 group and X is Na2B4O7, with the provison that R1 and R2 are not both H.
Dependencies are inferred from the claim text.