Microemulsion cleansers and their uses
AssigneeDrew Chemical Corporation
InventorsJoseph Mihelic, Lionel B. Luttinger
Life of this patent
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Abstract
This invention relates to microemulsion cleaners comprising (a) an organic solvent (b) a surfactant blend comprising an anionic and nonionic surfactant (c) a glycol ether (d) morpholine, and (e) water. These cleaners can be used for removing baked-on oil and carbon deposits.
Claims23
A ready-to-use microemulsion cleaner comprising:
- (a) an organic solvent in an amount of from 5 to 40 weight percent;
- (b) a surfactant blend comprising an anionic surfactant and a nonionic surfactant in an amount of 5 to 40 weight percent wherein the weight ratio of anionic surfactant to nonionic surfactant in said surfactant blend is from 1:20 to 20:1;
- (c) a glycol ether in an amount of 5 to 40 weight percent;
- (d) morpholine in an amount of 5 to 40 weight percent;
- and
- (e) water in an amount of 25 to 60 weight percent,
- wherein said weight percent is based upon the total weight of the ready-to-use microemulsion cleaner and said cleaner does not have a flashpoint up to the boiling point of said cleaner.
A microemulsion cleaner concentrate comprising:
- (a) an organic solvent in an amount of from 10 to 40 weight percent;
- (b) a surfactant blend comprising an anionic surfactant and a nonionic surfactant in an amount of 5 to 40 weight percent wherein the weight ratio of anionic surfactant to nonionic surfactant in said surfactant blend is from 1:20 to 20:1;
- (c) a glycol ether in an amount of 15 to 40 weight percent;
- (d) morpholine in an amount of at least 4 to 40 weight percent;
- and
- (e) water in an amount of 3 to 25 weight percent,
- wherein said weight percent is based upon the total weight of the ready-to-use microemulsion cleaner concentrate and said concentrate does not have a flashpoint up to the boiling point of said concentrate.
A process for shampooing a metal engine which comprises applying a microemulsion cleaner to said engine wherein said microemulsion cleaner comprises:
- (a) an organic solvent in an amount of from 5 to 40 weight percent;
- (b) a surfactant blend comprising an anionic surfactant and a nonionic surfactant in an amount of 5 to 40 weight percent wherein the weight ratio of anionic surfactant to nonionic surfactant in said surfactant blend is from 1:20 to 20:1;
- (c) a glycol ether in an amount of 5 to 40 weight percent;
- (d) morpholine in an amount of 4 to 40 weight percent;
- and
- (e) water in an amount of 25 to 60 weight percent,
- wherein said weight percent is based upon the total weight of the ready-to-use microemulsion cleaner and said cleaner does not have a flashpoint up to the boiling point of said cleaner.
A process for shampooing a metal engine which comprises applying a microemulsion cleaner concentrate to said engine wherein said microemulsion cleaner concentrate comprises:
- (a) an organic solvent in an amount of from 10 to 40 weight percent;
- (b) a surfactant blend comprising an anionic surfactant and a nonionic surfactant in an amount of 5 to 40 weight percent wherein the weight ratio of anionic surfactant to nonionic surfactant in said surfactant blend is from 1:20 to 20:1;
- (c) a glycol ether in an amount of 15 to 40 weight percent;
- (d) morpholine in an amount of at least 4 to 40 weight percent;
- (e) a defoamer in the amount of 0.001 to 0.1 weight percent, and
- (f) water in an amount of 3 to 25 weight percent,
- wherein said weight percent is based upon the total weight of the ready-to-use microemulsion cleaner concentrate add said concentrate does not have a flashpoint up to the boiling point of said concentrate.
Dependencies are inferred from the claim text.