US3920561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for imparting softness and soil release properties to fabrics
Assignee: Procter and Gamble Co
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Filing: 1974-07-15
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Granted: 1975-11-18
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Expires: 1994-07-15
Abstract
Abstract Fabric treating compositions comprising a fabric softener and a highly substituted methyl cellulose derivative confer softness and soil release properties to fabrics.
Inventors
- 👤 Thomas Allen Desmarais
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:47
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0036; C11D1/00; C11D1/38; C11D1/62; 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: 11
Claim 1
Independent Claim
82 words
A FABRIC TREATING COMPOSITION COMPRISING: A. FROM ABOUT 1 TO ABOUT 50% BY WEIGHT OF A COMBINED FABRIC SOFTENING AND ANTI-STATIC AGENT; B. FROM ABOUT 0.05 TO ABOUT 10% BY WEIGHT OF A METHYL CELLULOSE ETHER HAVING A DS METHYL OF AT LEAST ABOUT 2.1, A WEIGHT AVERAGE DEGREE OF POLYMERIZATION OF GREATER THAN ABOUT 100, A SOLUTION VISCOSITY ABOVE ABOUT 20 CENTIPOISE AND A GEL POINT LESS THAN ABOUT 50*C; AND C. THE BALANCE OF THE COMPOSITION COMPRISING A WATER-DISPERSIBLE CARRIER.
Claim 2
Dependent Claim
82 words
A FABRIC TREATING COMPOSITION COMPRISING: A. FROM ABOUT 1 TO ABOUT 50% BY WEIGHT OF A COMBINED FABRIC SOFTENING AND ANTI-STATIC AGENT; B. FROM ABOUT 0.05 TO ABOUT 10% BY WEIGHT OF A METHYL CELLULOSE ETHER HAVING A DS METHYL OF AT LEAST ABOUT 2.1, A WEIGHT AVERAGE DEGREE OF POLYMERIZATION OF GREATER THAN ABOUT 100, A SOLUTION VISCOSITY ABOVE ABOUT 20 CENTIPOISE AND A GEL POINT LESS THAN ABOUT 50*C; AND C. THE BALANCE OF THE COMPOSITION COMPRISING A WATER-DISPERSIBLE CARRIER.
Claim 3
Dependent Claim
51 words
A composition according to claim 1 wherein the fabric softening and anti-static agent is selected from the group consisting of quaternary ammonium salts containing at least one C10-C20 fatty alkyl substituent group; alkyl imidazolinium salts wherein at least one alkyl group contains a C8-C25 carbon chain; and C12-C20 alkyl pyridinium salts.
Claim 4
Dependent Claim
50 words
A composition according to claim 2 wherein the quaternary ammonium salt is of the formula R1R2R3R4N , X , wherein R1 and R2 are each C12-C20 fatty alkyl groups, or mixtures thereof, and R3 and R4 are each C1-C3 alkyl groups, or mixtures thereof, and wherein X is an anion.
Claim 5
Dependent Claim
19 words
A composition according to claim 3 wherein the quaternary ammonium salt is selected from ditallowalkyldimethylammonium chloride and dicoconutalkyldimethylammoniUm chloride.
Claim 6
Dependent Claim
22 words
A composition according to claim 1 wherein the methyl cellulose ether has a DS methyl of from about 2.1 to about 2.8.
Claim 7
Dependent Claim
14 words
A composition according to claim 5 wherein the DS methyl is 2.2 to 2.7.
Claim 8
Dependent Claim
34 words
A composition according to claim 1 comprising a quaternary ammonium salt selected from ditallowalkyldimethylammonium chloride and dicoconutalkylammonium chloride and a methyl cellulose ether characterized by a DS methyl from about 2.3 to about 2.6.
Claim 9
Dependent Claim
67 words
A composition according to claim 7 comprising from about 3 to about 15% by weight of the quaternary ammonium salt, from about 0.25 to about 2.0% by weight of the methyl cellulose ether, characterized by a viscosity in the range from about 20 cps to about 250 cps, the balance of the composition comprising a liquid carrier selected from water and mixtures of water and lower alcohols.
Claim 10
Dependent Claim
21 words
A composition according to claim 8 comprising, as an additional component, a non-deterging amount of a nonionic surfactant, or mixtures thereof.
Claim 11
Dependent Claim
34 words
A composition according to claim 9 wherein the surfactant is selected from ethoxylated alcohols and ethoxylated phenols characterized by a hydrophilic-lipophilic balance in the range of about 7 to about 15 or mixtures thereof.
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) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |