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US4136038A
Expired / Lapsed
US
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Fabric conditioning compositions containing methyl cellulose ether
Assignee: Procter and Gamble Co
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Filing: 1976-02-02
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Granted: 1979-01-23
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Expires: 1996-02-02
Abstract
Abstract Fabric conditioning compositions contain a cellulose ether having a molecular weight of from 3,000 to 10,000 and a methyl degree of substitution of from 1.8 to 2.7. The presence of the cellulose ether provides a soil release benefit to fabrics contacted with the disclosed compositions.
Inventors
- 👤 Hans J. Pracht
- 👤 Michael E. Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:17
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225; D; D06; D06M; D06M15/00; D06M15/01; D06M15/03; D06M15/05; D06M15/09
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
86 words
A fabric conditioning composition having the ability to impart an oily soil release benefit to fabrics contacted therewith consisting essentially of: (a) from 0.05% to 10% by weight of a methyl cellulose ether having the structure ##STR2## wherein R' is hydrogen or methyl and n ranges from 14 to 54, having a DS methyl of from 1.8 to 2.7 and a molecular weight of from 3000 to 10,000; (b) from 10% to 80% by weight of a detergency builder; and (c) the balance an inert filler.
Claim 2
Dependent Claim
86 words
A fabric conditioning composition having the ability to impart an oily soil release benefit to fabrics contacted therewith consisting essentially of: (a) from 0.05% to 10% by weight of a methyl cellulose ether having the structure ##STR2## wherein R' is hydrogen or methyl and n ranges from 14 to 54, having a DS methyl of from 1.8 to 2.7 and a molecular weight of from 3000 to 10,000; (b) from 10% to 80% by weight of a detergency builder; and (c) the balance an inert filler.
Claim 3
Dependent Claim
21 words
The fabric conditioning composition of claim 1 wherein the methyl cellulose ether has a molecular weight of from 3500 to 8000.
Claim 4
Dependent Claim
25 words
The fabric conditioning composition of claim 2 wherein the molecular weight is from 4000 to 5500 and the DS methyl is from 2.1 to 2.4.
Claim 5
Dependent Claim
41 words
The fabric conditioning composition of claim 1 wherein the methyl cellulose ether represents from 0.1% to 10% of the composition and additionally contains from 1% to 30% of a water-insoluble organic fabric softener compound having a melting point above 38° C.
Claim 6
Dependent Claim
19 words
The fabric conditioning composition of claim 4 wherein the softener compound represents from 2% to 25% of the composition.
Claim 7
Dependent Claim
125 words
A fabric conditioning composition having the ability to impart an oily soil release benefit to fabrics contacted therewith consisting essentially of: (a) from 0.1% to 10% by weight of a methyl cellulose ether having the structure: ##STR3## wherein R' is hydrogen or methyl and n ranges from 14 to 54, having a DS methyl of from 1.8 to 2.7 and a molecular weight of from 3000 to 10,000; (b) from 1% to 30% by weight of a water-insoluble organic fabric softener compound having a melting point above 38° C.; and (c) the balance a liquid carrier wherein said carrier is water or a water and alcohol mixture in a ratio of from 95:5 to 85:15 and wherein the alcohol is ethanol, propanol, isopropanol or butanol.
Claim 8
Dependent Claim
125 words
A fabric conditioning composition having the ability to impart an oily soil release benefit to fabrics contacted therewith consisting essentially of: (a) from 0.1% to 10% by weight of a methyl cellulose ether having the structure: ##STR3## wherein R' is hydrogen or methyl and n ranges from 14 to 54, having a DS methyl of from 1.8 to 2.7 and a molecular weight of from 3000 to 10,000; (b) from 1% to 30% by weight of a water-insoluble organic fabric softener compound having a melting point above 38° C.; and (c) the balance a liquid carrier wherein said carrier is water or a water and alcohol mixture in a ratio of from 95:5 to 85:15 and wherein the alcohol is ethanol, propanol, isopropanol or butanol.
Claim 9
Dependent Claim
21 words
The fabric conditioning composition of claim 6 wherein the methyl cellulose ether has a molecular weight of from 3500 to 8000.
Claim 10
Dependent Claim
25 words
The fabric conditioning composition of claim 7 wherein the molecular weight is from 4000 to 5500 and the DS methyl is from 2.1 to 2.4.
Claim 11
Dependent Claim
19 words
The fabric conditioning composition of claim 6 wherein the softener compound represents from 2% to 25% of the composition.
Claim 12
Dependent Claim
16 words
The fabric conditioning composition of claim 9 wherein the softener compound is a quaternary ammonium 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) | 1982-01-22 | 1982-07-24 | 1983-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-22 | 1986-07-24 | 1987-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-22 | 1990-07-24 | 1991-01-23 | $7700.00 | Window Closed / Lapsed |