Patent EP0335026A1 successfully refreshed from Google Patents.
EP0335026A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Transparent soap bar
Assignee: Unilever PLC
•
Filing: 1988-03-31
•
Granted: —
•
Expires: 2008-03-31
Abstract
Abstract A transparent bar is disclosed which requires the components to fit within three critical ratios. The composition comprises a mixture of alkanolammonium and alkali metal C₁₂-C₂₂ atom fatty acid salts, the mole ratio of alkanolammonium to alkali metal fatty acid salt being from about 0.1 to less than 1.0. A liquid solvent system must also be present which includes an amount of water and free alkanolamine in a weight ratio ranging from greater than 0.25 to less than 1.0. The weight ratio of total fatty acid salts to solvent must range from greater than 0.02 to less than 1.0.
Inventors
- 👤 Michael Irwin Hill
- 👤 Jerry Jaroslav Krupa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 15:21
CPC Classifications
C; C11; C11D; C11D9/00; C11D9/02; C11D17/00; C11D17/0095; C11D9/04; C11D9/22; C11D9/30
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
87 words
A transparent bar is provided comprising: ( i) a mixture of alkanolammonium and alkali metal C₁₂-C₂₂ atom fatty acid salts, the mole ratio of alkanolammonium to alkali metal fatty acid salt ranging from about 0.1 to less than 1.0; ( ii) a liquid solvent system including an amount of water and free alkanolamine in a weight ratio ranging from greater than 0.25 to less than 1.0; and wherein the weight ratio of total fatty acid salt to solvent ranges from greater than 0.02 to less than 1.0.
Claim 2
Dependent Claim
87 words
A transparent bar is provided comprising: ( i) a mixture of alkanolammonium and alkali metal C₁₂-C₂₂ atom fatty acid salts, the mole ratio of alkanolammonium to alkali metal fatty acid salt ranging from about 0.1 to less than 1.0; ( ii) a liquid solvent system including an amount of water and free alkanolamine in a weight ratio ranging from greater than 0.25 to less than 1.0; and wherein the weight ratio of total fatty acid salt to solvent ranges from greater than 0.02 to less than 1.0.
Claim 3
Dependent Claim
17 words
A bar according to claim 1 wherein the alkanolamine is triethanolamine and the alkanolammonium ion is triethanolammonium.
Claim 4
Dependent Claim
22 words
A bar according to claim 1 wherein the ratio of alkanolammonium to alkali metal fatty acid salt ranges from 0.5 to 0.9.
Claim 5
Dependent Claim
22 words
A bar according to claim 1 wherein the ratio of alkanolammonium to alkali metal fatty acid salt ranges from 0.6 to 0.7.
Claim 6
Dependent Claim
21 words
A bar according to claim 1 wherein the ratio of total fatty acid salt to solvent ranges between 0.25 and 0.75.
Claim 7
Dependent Claim
19 words
A bar according to claim 1 wherein the ratio of total fatty acid salt ranges from 0.5 to 0.6.
Claim 8
Dependent Claim
19 words
A bar according to claim 1 wherein the ratio of water to free alkanolamine ranges from 0.35 to 0.6.
Claim 9
Dependent Claim
19 words
A bar according to claim 1 wherein the ratio of water to free alkanolamine ranges from 0.4 to 0.5.
Claim 10
Dependent Claim
22 words
A bar according to claim 1 wherein the said fatty acid salts are a mixture of tallow and coconut fatty acid salts.
Claim 11
Dependent Claim
18 words
A bar according to claim 9 wherein the ratio of tallow to coconut ranges from 90:10 to 30:70.
Claim 12
Dependent Claim
26 words
A bar according to claim 1 further comprising a compound selected from the group consisting of the salts of bisulfite, hydrosulfite, metabisulfite, sulfite and mixtures thereof.
Claim 13
Dependent Claim
18 words
A bar according to claim 11 wherein the concentration of the compound ranges from 0.03 to 0.2 wt.%.
Claim 14
Dependent Claim
18 words
A bar according to claim 11 wherein the concentration of the compound ranges from 0.03 to 0.06 wt.%.
Claim 15
Dependent Claim
37 words
A bar according to claim 1 wherein the solvent is selected from the group consisting of water, trialkanolamine, mono- and poly-hydric alcohols, alkyl and aryl ethers, alkyl and aryl esters, alkyl and aryl ketones, and mixtures thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.