Patent US4859740A successfully refreshed from Google Patents.
Patent US4711739A successfully refreshed from Google Patents.
US4711739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Enzyme prespotter composition stabilized with water insoluble polyester or polyether polyol
Assignee: SC Johnson and Son Inc
•
Filing: 1986-12-18
•
Granted: 1987-12-08
•
Expires: 2006-12-18
Abstract
Abstract The present invention relates to water-in-oil emulsion prespotter laundry compositions. More particularly, the invention relates to water-in-oil emulsion prespotter laundry compositions containing enzymes and specific polyester or polyether polyols, which immobilize the enzymes to prevent their degradation during prolonged storage.
Inventors
- 👤 Thomas V. Kandathil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:49
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3703; C11D3/3707; C11D3/3715; C11D3/38; C11D3/386; C11D3/38618; C11D3/38663; C11D3/43
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
122 words
An improved water-in-oil prespotter laundry composition comprising: (a) from about 0.1 to 1% by weight of at least one enzyme; (b) from about 5 to 30% by weight of at least one ethoxylated nonionic surfactant; (c) from about 0.2 to 5% by weight of at least one of a water insoluble polyester polyol having a hydroxyl number from about 28 to 690 or a water insoluble polyether polyol having a hydroxyl number from about 28 to 690; (d) from about 0.1 to 10% by weight of at least one builder salt; (e) from about 5 to 70% by weight of at least one hydrocarbon solvent; and (f) the balance water; and having a pH in the range from about 5 to 9.
Claim 2
Dependent Claim
122 words
An improved water-in-oil prespotter laundry composition comprising: (a) from about 0.1 to 1% by weight of at least one enzyme; (b) from about 5 to 30% by weight of at least one ethoxylated nonionic surfactant; (c) from about 0.2 to 5% by weight of at least one of a water insoluble polyester polyol having a hydroxyl number from about 28 to 690 or a water insoluble polyether polyol having a hydroxyl number from about 28 to 690; (d) from about 0.1 to 10% by weight of at least one builder salt; (e) from about 5 to 70% by weight of at least one hydrocarbon solvent; and (f) the balance water; and having a pH in the range from about 5 to 9.
Claim 3
Dependent Claim
25 words
The composition of claim 1, wherein said ethoxylated nonionic surfactant is selected from the group consisting of ethoxylated aliphatic alcohols, ethoxylated alkylphenols, and mixtures thereof.
Claim 4
Dependent Claim
78 words
The composition of claim 2, wherein said ethoxylated nonionic surfactant is selected from the group consisting of primary or secondary alcohol ethoxylates having a carbon length of 8 to 22 carbon atoms and containing from 1 to about 100 moles of ethylene oxide per mole of alcohol; alkylphenol polyglycol ethers having a carbon length of 6 to 18 carbon atoms and containing from 1 to about 50 moles of ethylene oxide per mole of phenol, and mixtures thereof.
Claim 5
Dependent Claim
21 words
The composition of claim 1, wherein the enzyme is selected from the group consisting of proteases, lipases, amylases, and mixtures thereof.
Claim 6
Dependent Claim
33 words
The composition of claim 1, wherein the builder salt is selected from the group consisting of citrates, gluconates, borates, silicates, phosphates, chlorides, bicarbonates, carbonates, acetates, polyphosphates, phosphates, maleates, fumerates, formates and mixtures thereof.
Claim 7
Dependent Claim
29 words
The composition of claim 1, wherein the builder salt is selected from the group consisting of water soluble alkali metal salts of nitrilotriacetic acid and ethylene diamine tetracetic acid.
Claim 8
Dependent Claim
66 words
The composition of claim 1, wherein the hydrocarbon solvent is selected from the group consisting of paraffinic hydrocarbons having a boiling range of from about 35° to 251° C., isoparaffinic hydrocarbons having a boiling range of from about 35° to 251° C., low odor petroleum solvents having a boiling range of from about 35° to 251° C., aromatic solvents, kerosene, d-limonene, pine oil, and mixtures thereof.
Claim 9
Independent Claim
143 words
A method for producing an improved water-in-oil prespotter laundry composition having a pH in the range from about 5 to 9 comprising the steps of: (1) mixing: (a) from about 0.1 to 1% by weight of at least one enzyme; (b) from about 5 to 30% by weight of at least one ethoxylated nonionic surfactant; (c) from about 0.2 to 5% by weight of at least one of a water insoluble polyester polyol having a hydroxyl number from about 28 to 690 or a water insoluble polyether polyol having a hydroxyl number from about 28 to 690; and (d) from about 5 to 70% by weight of at least one hydrocarbon solvent; (2) blending from about 0.1 to 10% by weight of at least one builder salt in an aqueous carrier; and (3) adding the mixture of (1) to the blend of (2).
Claim 10
Independent Claim
143 words
A method for producing an improved water-in-oil prespotter laundry composition having a pH in the range from about 5 to 9 comprising the steps of: (1) mixing: (a) from about 0.1 to 1% by weight of at least one enzyme; (b) from about 5 to 30% by weight of at least one ethoxylated nonionic surfactant; (c) from about 0.2 to 5% by weight of at least one of a water insoluble polyester polyol having a hydroxyl number from about 28 to 690 or a water insoluble polyether polyol having a hydroxyl number from about 28 to 690; and (d) from about 5 to 70% by weight of at least one hydrocarbon solvent; (2) blending from about 0.1 to 10% by weight of at least one builder salt in an aqueous carrier; and (3) adding the mixture of (1) to the blend of (2).
Claim 11
Dependent Claim
25 words
The method of claim 8, wherein said ethoxylated nonionic surfactant is selected from the group consisting of ethoxylated aliphatic alcohols, ethoxylated alkylphenols, and mixtures thereof.
Claim 12
Dependent Claim
78 words
The method of claim 9, wherein said ethoxylated nonionic surfactant is selected from the group consisting of primary or secondary alcohol ethoxylates having a carbon length of 8 to 22 carbon atoms and containing from 1 to about 100 moles of ethylene oxide per mole of alcohol; alkylphenol polyglycol ethers having a carbon length of 6 to 18 carbon atoms and containing from 1 to about 50 moles of ethylene oxide per mole of alkylphenol, and mixtures thereof.
Claim 13
Dependent Claim
21 words
The method of claim 8, wherein the enzyme is selected from the group consisting of proteases, lipases, amylases, and mixtures thereof.
Claim 14
Dependent Claim
33 words
The method of claim 8, wherein the builder salt is selected from the group consisting of citrates, gluconates, borates, silicates, phosphates, chloride, bicarbonates, carbonates, acetates, polyphosphates, phosphates, maleates, fumerates, formates and mixtures thereof.
Claim 15
Dependent Claim
29 words
The method of claim 8, wherein the builder salt is selected from the group consisting of water soluble alkali metal salts of nitrilotriacetic acid and ethylene diamine tetracetic acid.
Claim 16
Dependent Claim
66 words
The method of claim 8, wherein the hydrocarbon solvent is selected from the group consisting of paraffinic hydrocarbons having a boiling range of from about 35° to 251° C., isoparaffinic hydrocarbons having a boiling range of from about 35° to 251° C., low odor petroleum solvents having a boiling range of from about 35° to 251° C., aromatic solvents, kerosene, d-limonene, pine oil, and mixtures thereof.
References Cited (Backward Citations)
US2642376A
Cited
US3557002A
Cited
US3655570A
Cited
US3600319A
Cited
US3607653A
Cited
US3634258A
Cited
US3627688A
Cited
US3819528A
Cited
US3697451A
Cited
US3575864A
Cited
US3634266A
Cited
US3676374A
Cited
US3707504A
Cited
US3635828A
Cited
US3707505A
Cited
US3761420A
Cited
US3755085A
Cited
US3682284A
Cited
US3741902A
Cited
US3749671A
Cited
US3746649A
Cited
US4169817A
Cited
US3943063A
Cited
US3723327A
Cited
US3781212A
Cited
US4009076A
Cited
US4011169A
Cited
US3953353A
Cited
US4111855A
Cited
US4090973A
Cited
US4142999A
Cited
US4176079A
Cited
US4238345A
Cited
US4272396A
Cited
US4243543A
Cited
US4326985A
Cited
US4438009A
Cited
US4404115A
Cited
US4462922A
Cited
US4561998A
Cited
US4511488A
Cited
US4511488B1
Cited
US4594184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-07 | 1991-06-08 | 1991-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-07 | 1995-06-08 | 1995-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-07 | 1999-06-08 | 1999-12-08 | $7700.00 | Window Closed / Lapsed |