Patent US4900475A successfully refreshed from Google Patents.
US4900475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized built liquid detergent composition containing enzyme
Assignee: Colgate Palmolive Co
•
Filing: 1988-10-13
•
Granted: 1990-02-13
•
Expires: 2008-10-13
Abstract
Abstract A stabilized enzyme-containing liquid detergent is provided comprising (a) from about 5 to 20%, by weight, of one or more surface active detergent compounds selected from the group consisting of anionic, nonionic and amphoteric detergent compounds; (b) from about 5 to 30%, by weight, of one or more builder salts selected from the group consisting of alkali metal tripolyphosphates, alkali metal carbonates, alkali metal nitrilotriacetates and polyacetal carboxylates; (c) an effective amount of an enzyme or an enzyme mixture selected from the group consisting of alkaline protease enzymes and alpha-amylase enzymes; (d) an enzyme-stabilizing system containing, based on the weight of the detergent composition, (i) from about 1% to 10% glycerine; (ii) from about 1 to 8% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates; and (iii) from about 0.5 to 8% of a carboxylic acid compound selected from the group consisting of mono, di and/or polycarboxylic acids having 2 to 8 carbon atoms other than acetic and propionic acids and water-soluble salts thereof; and (e) the balance comprising water
Inventors
- 👤 Pallassanna Ramachandran
- 👤 Jan E. Shulman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:19
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
186 words
A stabilized enzyme-containing built liquid detergent composition comprising: (a) from about 5 to 20%, by weight, of one or more active detergent compounds selected from the group consisting of anionic, nonionic and amphoteric detergent compounds; (b) from about 5 to 30%, by weight, of builder salts consisting essentially of a mixture of an alkali metal tripolyphosphate and an alkali metal carbonate; (c) an effective amount of an enzyme or an enzyme mixture for stain removal selected from the group consisting of alkaline protease enzymes and alpha-amylase enzymes; (d) an enzyme-stabilizing system containing, based on the weight of the detergent composition, (i) from about 1% to 10% glycerine; (ii) from about 1 to 8% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates and; (iii) from about 0.5 to 8% of a carboxylic acid compound selected from the group consisting of, di and/or polycarboxylic acids selected from the group consisting of oxalic acid, malonic acid, maleic acid, succinic acid, malic acid, tartaric acid, aspartic acid and citric acid and watersoluble salt thereof; and (e) the balance comprising water.
Claim 2
Dependent Claim
186 words
A stabilized enzyme-containing built liquid detergent composition comprising: (a) from about 5 to 20%, by weight, of one or more active detergent compounds selected from the group consisting of anionic, nonionic and amphoteric detergent compounds; (b) from about 5 to 30%, by weight, of builder salts consisting essentially of a mixture of an alkali metal tripolyphosphate and an alkali metal carbonate; (c) an effective amount of an enzyme or an enzyme mixture for stain removal selected from the group consisting of alkaline protease enzymes and alpha-amylase enzymes; (d) an enzyme-stabilizing system containing, based on the weight of the detergent composition, (i) from about 1% to 10% glycerine; (ii) from about 1 to 8% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates and; (iii) from about 0.5 to 8% of a carboxylic acid compound selected from the group consisting of, di and/or polycarboxylic acids selected from the group consisting of oxalic acid, malonic acid, maleic acid, succinic acid, malic acid, tartaric acid, aspartic acid and citric acid and watersoluble salt thereof; and (e) the balance comprising water.
Claim 3
Dependent Claim
171 words
A liquid detergent composition according to claim 1 comprising: (a) from about 5 to 15% of an alkali metal alkylbenzene sulfonate wherein the alkyl group contains 12 to 15 carbon atoms; (b) from about 2 to 5% of an alkali metal alkyl polyethoxy sulfate wherein the alkyl group contains 10 to 18 carbon atoms and the polyethoxy is of 3 to 11 ethylene oxide groups, the weight ratio of (a) to (b) being from about 2:1 to about 8:1; (c) from about 5 to 30% of sodium tripolyphosphate; (d) from about 1 to 10% of sodium carbonate, the weight ratio of (c) to (d) being from about 2:1 to about 8:1; (e) an effective amount of said enzyme or enzyme mixture; (f) the enzyme stabilizing system containing, based on the weight of the detergent composition, (i) from about 3 to 7% glycerine (ii) from about 1 to 5% of an alkali metal borate and (iii) from about 0.5 to 4% of said carboxylic acid compound; and (g) the balance comprising water.
Claim 4
Dependent Claim
53 words
A liquid detergent composition according to claim 2 wherein said alkali metal alkylbenzene sulfonate is sodium linear tridecylbenzene sulfonate and said alkali metal alkyl polyethoxy sulfate is one wherein the alkali metal is sodium, the alkyl group contains 12 to 15 carbon atoms and the polyethoxy is of about 3 ethylene oxide groups.
Claim 5
Dependent Claim
24 words
A liquid detergent composition according to claim 3 wherein the ratio of tridecylbenzene sulfonate to polyethoxy sulfate is from about 3:1 to about 5:1.
Claim 6
Dependent Claim
17 words
A liquid detergent composition according to claim 2 wherein said boron compound is an alkali metal borate.
Claim 7
Dependent Claim
13 words
A liquid detergent composition according to claim 5 wherein said borate is borax.
Claim 8
Dependent Claim
25 words
A liquid detergent composition according to claim 2 which contains from about 10 to 16% sodium tripolyphosphate and from about 3 to 7% sodium carbonate.
Claim 9
Dependent Claim
21 words
A liquid detergent composition according to claim 2 wherein said carboxylic acid compound is succinic acid or a water-soluble salt thereof.
Claim 10
Dependent Claim
21 words
A liquid detergent composition according to claim 2 wherein said carboxylic acid compound is maleic acid or a water-soluble salt thereof.
Claim 11
Dependent Claim
20 words
A liquid detergent according to claim 2 wherein said carboxylic acid compound is citric acid or a water-soluble salt thereof.
Claim 12
Dependent Claim
21 words
A liquid detergent composition according to claim 2 wherein said carboxylic acid compound is malonic acid or a water-soluble salt thereof.
Claim 13
Dependent Claim
21 words
A liquid detergent composition according to claim 2 wherein said carboxylic acid compound is malic acid or a water-soluble salt thereof.
Claim 14
Independent Claim
202 words
A method of laundering comprising contacting the stained and/or soiled fabrics to be laundered with a stabilized enzyme-containing built liquid detergent composition comprising: (a) from about 5 to 20%, by weight, of one or more surface active detergent compounds selected from the group consisting of anionic, nonionic and amphoteric detergent compounds; (b) from about 5 to 30%, by weight, of builder salts consisting essentially of a mixture of an alkali metal tripolyphosphate and an alkali metal carbonate; (c) an effective amount of an enzyme or an enzyme mixture for stain removal selected from the group consisting of alkaline protease enzymes and alpha-amylase enzymes; (d) an enzyme-stabilizing system containing, based on the weight of the detergent composition, (i) from about 1% to 10% glycerine (ii) from about 1 to 8% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates; and (iii) from about 0.5 to 8% of a carboxylic acid compound selected from the group consisting of di and/or polycarboxylic acids selected from the group consisting of oxalic acid, malonic acid, maleic acid, succinic acid, malic acid, tartaric acid, aspartic acid and citric acid and watersoluble salt thereof; and; (e) the balance comprising water.
Claim 15
Independent Claim
202 words
A method of laundering comprising contacting the stained and/or soiled fabrics to be laundered with a stabilized enzyme-containing built liquid detergent composition comprising: (a) from about 5 to 20%, by weight, of one or more surface active detergent compounds selected from the group consisting of anionic, nonionic and amphoteric detergent compounds; (b) from about 5 to 30%, by weight, of builder salts consisting essentially of a mixture of an alkali metal tripolyphosphate and an alkali metal carbonate; (c) an effective amount of an enzyme or an enzyme mixture for stain removal selected from the group consisting of alkaline protease enzymes and alpha-amylase enzymes; (d) an enzyme-stabilizing system containing, based on the weight of the detergent composition, (i) from about 1% to 10% glycerine (ii) from about 1 to 8% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates; and (iii) from about 0.5 to 8% of a carboxylic acid compound selected from the group consisting of di and/or polycarboxylic acids selected from the group consisting of oxalic acid, malonic acid, maleic acid, succinic acid, malic acid, tartaric acid, aspartic acid and citric acid and watersoluble salt thereof; and; (e) the balance comprising water.
Claim 16
Dependent Claim
177 words
A method according to claim 13 wherein said liquid detergent composition comprises: (a) from about 5 to 15% of an alkali metal alkylbenzene sulfonate wherein the alkyl group contains 12 to 15 carbon atoms; (b) from about 2 to 5% of an alkali metal alkyl polyethoxy sulfate wherein the alkyl group contains 10 to 18 carbon atoms and the polyethoxy is of 3 to 11 ethylene oxide groups, the weight ratio of (a) to (b) being from about 2:1 to about 8:1; (c) from about 5 to 30% of sodium tripolyphosphate; (d) from about 1 to 10% of sodium carbonate, the weight ratio of (c) to (d) being from about 2:1 to about 2:1 to about 6:1; (e) an effective amount of said enzyme or enzyme mixture; (f) the enzyme stabilizing system containing, based on the weight of the detergent composition, (i) from about 3 to 7% glycerine (ii) from about 1 to 5% of an alkali metal borate and (iii) from about 0.5 to 4% of said carboxylic acid compound; and (g) the balance comprising water.
Claim 17
Dependent Claim
51 words
A method according to claim 14 wherein said alkali metal alkylbenzene sulfonate is sodium linear tridecylbenzene sulfonate and said alkali metal alkyl polyethoxy sulfate is one wherein the alkali metal is sodium, the alkyl group contains 12 to 15 carbon atoms and the polyethoxy is of about 3 ethylene oxide groups.
Claim 18
Dependent Claim
22 words
A method according to claim 15 wherein the ratio of tridecylbenzene sulfonate to polyethoxy sulfate is from about 3:1 to about 5:1.
Claim 19
Dependent Claim
12 words
A method according to claim 14 wherein said boron compound is borax.
Claim 20
Dependent Claim
27 words
A method according to claim 14 wherein the liquid detergent composition contains from about 10 to 16% sodium tripolyphosphonate and from about 3 to 7% sodium carbonate.
Claim 21
Dependent Claim
19 words
A method according to claim 14 wherein the carboxylic acid compound is succinic acid or a water-soluble salt thereof.
Claim 22
Dependent Claim
19 words
A method according to claim 14 wherein the carboxylic acid compound is citric acid or a water-soluble salt thereof.
Claim 23
Dependent Claim
19 words
A method according to claim 14 wherein the carboxylic acid compound is maleic acid or a water-soluble salt thereof.
Claim 24
Dependent Claim
19 words
A method according to claim 14 wherein the carboxylic acid compound is malonic acid or a water-soluble salt thereof.
References Cited (Backward Citations)
GB2079305A
Cited
US4518694A
Cited
US4518694B1
Cited
US4465619A
Cited
EP0080223A2
Cited
US4529525A
Cited
US4532064A
Cited
EP0126505A1
Cited
GB2140819A
Cited
GB2140818A
Cited
US4507219A
Cited
US4537708A
Cited
US4537707A
Cited
US4537706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-02-12 | 1993-08-14 | 1994-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-12 | 1997-08-14 | 1998-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-12 | 2001-08-14 | 2002-02-13 | $7700.00 | Window Closed / Lapsed |