US4652394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Built single phase liquid anionic detergent compositions containing stabilized enzymes
Assignee: Colgate Palmolive Co
•
Filing: 1986-05-29
•
Granted: 1987-03-24
•
Expires: 2006-05-29
Abstract
Abstract A stabilized built single-phase enzyme-containing liquid detergent composition is provided comprising: (a) from about 8 to 20%, by weight, of one or more surface active anionic detergent compounds; (b) from about 5 to 25%, by weight, of a water-soluble non-phosphate detergent builder salt; (c) an effective amount of an enzyme or 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 12 to 25% of propylene glycol and (ii) from about 1 to 5% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates; and (e) from about 25 to 75%, by weight, water.
Inventors
- 👤 Jack T. Inamorato
- 👤 Michael C. Crossin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:08
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/38; C11D3/386; C11D3/38663
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
134 words
A stabilized aqueous, built, clear single-phase, enzyme-containing liquid detergent composition comprising: (a) from about 8 to 20%, by weight, of one or more surface active anionic detergent compounds; (b) from about 5 to 25%, by weight, of a water-soluble non-phosphate detergent builder salt; (c) an effective amount of an enzyme or 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 12 to 25% of propylene glycol and (ii) from about 1 to 5% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates; and (e) from about 25 to 75%, by weight, water, said liquid detergent composition being substantially free of cross-linked polyacrylates polymers.
Claim 2
Dependent Claim
134 words
A stabilized aqueous, built, clear single-phase, enzyme-containing liquid detergent composition comprising: (a) from about 8 to 20%, by weight, of one or more surface active anionic detergent compounds; (b) from about 5 to 25%, by weight, of a water-soluble non-phosphate detergent builder salt; (c) an effective amount of an enzyme or 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 12 to 25% of propylene glycol and (ii) from about 1 to 5% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates; and (e) from about 25 to 75%, by weight, water, said liquid detergent composition being substantially free of cross-linked polyacrylates polymers.
Claim 3
Dependent Claim
14 words
A detergent composition according to claim 1 wherein said builder salt is sodium citrate.
Claim 4
Dependent Claim
14 words
A detergent composition according to claim 1 wherein said builder salt is sodium nitrilotriacetate.
Claim 5
Dependent Claim
17 words
A detergent composition according to claim 1 which is substantially free of a phosphate detergent builder salt.
Claim 6
Dependent Claim
31 words
A detergent composition according to claim 1 which contains from about 15 to 20%, by weight, of propylene glycol and from about 1 to 3%, by weight, of said boron compound.
Claim 7
Dependent Claim
14 words
A detergent composition in accordance with claim 1 wherein said boron compound is borax.
Claim 8
Dependent Claim
25 words
A detergent composition in accordance with claim 1 wherein said builder salt is present in an amount of from about 10 to 20%, by weight.
Claim 9
Dependent Claim
34 words
A detergent composition according to claim 1 wherein the anionic detergent is a mixture of a C 10 -C 18 alkyl benezene sulfonate salt and a polyethoxylated C 10 -C 18 alcohol sulfate salt.
Claim 10
Independent Claim
147 words
A method of laundering comprising contacting the stained and/or soiled fabrics to be laundered with an enzyme-containing, built, clear single-phase liquid detergent composition comprising; (a) from about 8 to 20%, by weight, of one or more surface active anionic detergent compounds; (b) from about 5 to 25%, by weight, of a water-soluble non-phosphate detergent builder salt; (c) an effective amount of an enzyme or 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 12 to 25% of propylene glycol and (ii) from about 1 to 5% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates; and (e) from about 25 to 75%, by weight, water, said liquid detergent composition being substantially free of cross-linked polyacrylate polymers.
Claim 11
Independent Claim
147 words
A method of laundering comprising contacting the stained and/or soiled fabrics to be laundered with an enzyme-containing, built, clear single-phase liquid detergent composition comprising; (a) from about 8 to 20%, by weight, of one or more surface active anionic detergent compounds; (b) from about 5 to 25%, by weight, of a water-soluble non-phosphate detergent builder salt; (c) an effective amount of an enzyme or 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 12 to 25% of propylene glycol and (ii) from about 1 to 5% of a boron compound selected from the group consisting of boric acid, boric oxide and alkali metal borates; and (e) from about 25 to 75%, by weight, water, said liquid detergent composition being substantially free of cross-linked polyacrylate polymers.
Claim 12
Dependent Claim
13 words
A method according to claim 9 wherein said builder salt is sodium citrate.
Claim 13
Dependent Claim
13 words
A method according to claim 9 wherein said builder salt is sodium nitrilotriacetate.
Claim 14
Dependent Claim
19 words
A method according to claim 9 wherein said detergent composition is substantially free of a phosphate detergent builder salt.
Claim 15
Dependent Claim
31 words
A method according to claim 9 wherein said detergent composition contains from about 15 to 20%, by weight, of propylene glycol and from about 1 to 3%, by weight, of borax.
Claim 16
Dependent Claim
21 words
A method according to claim 9 wherein said detergent composition contains from about 10 to 20% of a non-phosphate builder set.
Claim 17
Dependent Claim
33 words
A method according to claim 9 wherein said detergent composition contains a mixture of a C 10 -C 18 alkyl benzene sulfonate salt and a polyethoxylated C 10 -C 18 alcohol sulfate salt.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-23 | 1990-09-22 | 1991-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-23 | 1994-09-22 | 1995-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-23 | 1998-09-22 | 1999-03-24 | $7700.00 | Window Closed / Lapsed |