← Back to Patent Explorer
US4020016A Expired / Lapsed US ⏱️ 0.0 years remaining

Cleaning compositions effective in dissolving soap curd

Assignee: SC Johnson and Son Inc
•
Filing: 1975-02-28
•
Granted: 1977-04-26
•
Expires: 1995-02-28
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Aqueous cleaning compositions, especially effective in dissolving soap curd, are provided which comprise in aqueous solution an ammonium, alkylamine or hydroxy-alkylamine salt of nitrilotriacetic acid, an alkylene polyamine polycarboxylic acid, or mixtures thereof, and one or more nonionic surfactants, wherein the alkylamine and hydroxy-alkylamine have a chain length of from 1 to 5 carbon atoms, the composition is substantially free of alkali metal ions, and the alkylene polyamine polycarboxylic acid has the formula (HOOCCH.sub.2).sub.2 N[(CH.sub.2).sub.x NCH.sub.2 COOH].sub.y CH.sub.2 COOH wherein x and y may each independently be from 1 to 4.

Inventors

  • 👤 Charles S. Sokol

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 12:03
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/26; C11D3/33

Claims Analysis

Total Claims: 16
Claim 1
Independent Claim 99 words
A soap curd dissolving cleaning composition consisting essentially of: a. from about 1-5% by weight of a member selected from the group consisting of an ammonium, alkylamine or hydroxyalkylamine salt of nitrilotriacetic acid, an alkylene polyamine polycarboxylic acid, or mixtures thereof, wherein said alkylene polyamine polycarboxylic acid has the formula (HOOCCH.sub.2).sub.2 N[(CH.sub.2).sub.x NCH.sub.2 COOH].sub.y CH.sub.2 COOH wherein the values of x and y may vary independently from 1 to 7, b. from about 0.75-2% by weight of at least one nonionic surfactant characterized as having an HLB number of at least about 13.5 selected from the group consisting of:
Claim 2
Dependent Claim 99 words
A soap curd dissolving cleaning composition consisting essentially of: a. from about 1-5% by weight of a member selected from the group consisting of an ammonium, alkylamine or hydroxyalkylamine salt of nitrilotriacetic acid, an alkylene polyamine polycarboxylic acid, or mixtures thereof, wherein said alkylene polyamine polycarboxylic acid has the formula (HOOCCH.sub.2).sub.2 N[(CH.sub.2).sub.x NCH.sub.2 COOH].sub.y CH.sub.2 COOH wherein the values of x and y may vary independently from 1 to 7, b. from about 0.75-2% by weight of at least one nonionic surfactant characterized as having an HLB number of at least about 13.5 selected from the group consisting of:
Claim 3
Dependent Claim 79 words
ethoxylated linear primary alcohols having the formula C.sub.m H.sub.2m.sub.+1 O (CH.sub.2 CH.sub.2 O).sub.n H, wherein m can vary from 12 to 15 and n is at least 12; 2. an ethoxylated linear primary alcohol which is a clear liquid having an HLB number of 14, a freezing point of 1° C, a cloud point of 400° F, a pH of 6-8, and a specific gravity of 1.02 at 25° C; 3. ethoxylated linear secondary alcohols having the formula ##STR7##
Claim 4
Dependent Claim 79 words
ethoxylated linear primary alcohols having the formula C.sub.m H.sub.2m.sub.+1 O (CH.sub.2 CH.sub.2 O).sub.n H, wherein m can vary from 12 to 15 and n is at least 12; 2. an ethoxylated linear primary alcohol which is a clear liquid having an HLB number of 14, a freezing point of 1° C, a cloud point of 400° F, a pH of 6-8, and a specific gravity of 1.02 at 25° C; 3. ethoxylated linear secondary alcohols having the formula ##STR7##
Claim 5
Dependent Claim 72 words
wherein the sum of m and p is 9 to 13 and of n is at least 12; and 4. ethoxylated octyl phenols having the formula ##STR8## wherein n is at least 9; and c. up to about 98.25% by weight of water wherein the alkyl substituent of said alkylamine and hydroxy-alkylamine has a chain length of from 1 to 5 carbon atoms and said composition is substantially free of sodium ions.
Claim 6
Dependent Claim 72 words
wherein the sum of m and p is 9 to 13 and of n is at least 12; and 4. ethoxylated octyl phenols having the formula ##STR8## wherein n is at least 9; and c. up to about 98.25% by weight of water wherein the alkyl substituent of said alkylamine and hydroxy-alkylamine has a chain length of from 1 to 5 carbon atoms and said composition is substantially free of sodium ions.
Claim 7
Dependent Claim 34 words
The composition of claim 1 wherein said alkylene polyamine polycarboxylic acid has the formula (HOOCCH.sub.2).sub.2 N[(CH.sub.2).sub.x NCH.sub.2 COOH].sub.y CH.sub.2 COOH wherein the values of x and y may vary independently from 1 to 4.
Claim 8
Dependent Claim 39 words
The composition of claim 1 wherein said composition contains at least about 2% by weight of said member in (a), at least about 1% by weight of said nonionic surfactant, and up to about 97% by weight of water.
Claim 9
Dependent Claim 78 words
The composition of claim 1 wherein said member is the monoethanolamine salt of ethylenediaminetetraacetic acid, and said nonionic surfactant is selected from the group consisting of said ethoxylated linear primary alcohol (2) having an HLB number of 14; an ethoxylated linear primary alcohol (1) wherein n is 12 and said alcohol has an HLB number of 14.5; and an ethoxylated octyl phenol (4) wherein n is 12 to 13 and said phenol has an HLB number of 14.6.
Claim 10
Dependent Claim 105 words
A soap curd dissolving cleaning composition consisting essentially of: a. from about 0.75-2% by weight of a member selected from the group consisting of an ammonium, alkylamine or hydroxyalkyl amine salt of nitrilotriacetic acid, an alkylene polyamine polycarboxylic acid, or mixtures thereof; b. from about 0.5 to 2% by weight of at least one nonionic surfactant selected from the group consisting of: 1. ethoxylated linear secondary alcohols having the formula ##STR9## wherein the sum of m and p is 9 to 13 and said alcohol has an HLB number of 14.5 when n is 12 or an HLB number of 18 when n is 40;
Claim 11
Dependent Claim 105 words
A soap curd dissolving cleaning composition consisting essentially of: a. from about 0.75-2% by weight of a member selected from the group consisting of an ammonium, alkylamine or hydroxyalkyl amine salt of nitrilotriacetic acid, an alkylene polyamine polycarboxylic acid, or mixtures thereof; b. from about 0.5 to 2% by weight of at least one nonionic surfactant selected from the group consisting of: 1. ethoxylated linear secondary alcohols having the formula ##STR9## wherein the sum of m and p is 9 to 13 and said alcohol has an HLB number of 14.5 when n is 12 or an HLB number of 18 when n is 40;
Claim 12
Dependent Claim 104 words
an ethoxylated linear primary alcohol which is a clear liquid having an HLB number of 13.1, a freezing point of 56°-63° C, a flash point of 375° F, a pH of 5-7, a pour point of 23° F, and a specific gravity of 1.0072 at 20° C; and 3. an ethoxylated octyl phenol having the formula ##STR10## wherein said phenol has an HLB number of 13.5; c. up to about 98.5% by weight of water wherein the alkyl substituent of said alkylamine and hydroxy-alkylamine has a chain length of from 1 to 5 carbon atoms and said composition is substantially free of sodium ions.
Claim 13
Dependent Claim 104 words
an ethoxylated linear primary alcohol which is a clear liquid having an HLB number of 13.1, a freezing point of 56°-63° C, a flash point of 375° F, a pH of 5-7, a pour point of 23° F, and a specific gravity of 1.0072 at 20° C; and 3. an ethoxylated octyl phenol having the formula ##STR10## wherein said phenol has an HLB number of 13.5; c. up to about 98.5% by weight of water wherein the alkyl substituent of said alkylamine and hydroxy-alkylamine has a chain length of from 1 to 5 carbon atoms and said composition is substantially free of sodium ions.
Claim 14
Dependent Claim 25 words
The cleaning composition of claim 5 wherein said member is the monoethanolamine salt of ethylenediaminetetraacetic acid, and said surfactant is that described in section (b)(2).
Claim 15
Dependent Claim 142 words
The cleaning composition of claim 5 consisting essentially of 1% by weight of the surfactant described in section (b)(2); 87.15% by weight of water; 3% by weight of monoethanolamine; 0.4% by weight of ethylenediamine; 3% by weight of ethylenediaminetetraacetic acid; 0.5% by weight of a mixture of alkyl dimethyl benzyl ammonium chloride (50% C 12 , 30% CH 14 , 17% C 16 , 3% C 18 ) and alkyl dimethyl ethyl benzyl ammonium chloride (60% C 14 , 30% C 16 , 5% C 12 , 5% C 18 ); 0.04% by weight of a fluorocarbon nonionic surfactant having a flash point of 92° F and a density of 9.0 pounds per gallon; 5% by weight of a solvent mixture consisting of 61.54% by weight of isopropanol and 38.46% by weight of butyl cellosolve; and 0.15% by weight of a perfume.
Claim 16
Dependent Claim 17 words
The cleaning composition of claim 7 additionally containing 0.01% by weight of 2-(4-thiazolyl)-benzimidazole as an antifungal agent.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-04-25 1980-10-25 1981-04-26 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-04-25 1984-10-25 1985-04-26 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-04-25 1988-10-25 1989-04-26 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag