US4110498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric treatment compositions
Assignee: Procter and Gamble Co
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Filing: 1976-03-08
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Granted: 1978-08-29
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Expires: 1996-03-08
Abstract
Abstract Anti-static fabric softening articles and methods which utilize a composition comprising a cationic fabric softener in combination with lanolin alcohols (or certain derivatives thereof) as a second fabric softener and release aid. The composition is releasably affixed or incorporated into a dispensing means and applied to fabrics in an automatic laundry dryer.
Inventors
- 👤 Lawrence Benjamin
- 👤 Michael A. Walsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:09
CPC Classifications
C; C11; C11D; C11D17/00; C11D17/04; C11D17/041; C11D17/047; C11D3/00; C11D3/0005; C11D3/001; C11D3/16; C11D3/20; C11D3/2003; C11D3/2093; D; D06; D06M; D06M23/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/249921; Y10T428/249953; Y10T428/249954; Y10T428/249994; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/4935; Y10T442/00; Y10T442/20; Y10T442/2352
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
169 words
An article of manufacture adapted for providing fabric softening within an automatic laundry dryer, said article comprising: (a) a fabric softening amount of a softening composition, said composition having a melting point above about 38° C. and being flowable at fabric dryer operating temperature, said composition comprising: (i) from about 50% to about 95% by weight of the composition of a quaternary ammonium fabric softener material; and (ii) from about 5% up to about 50% by weight of the composition of lanolin alcohol component selected from the group consisting of lanolin alcohols, the aliphatic carboxylic acid esters of lanolin alcohols wherein the acid moieties of said esters contain from about 2 to about 22 carbon atoms and the propylene oxide adducts of lanolin alcohols wherein said adducts are the reaction product of from about 2 to about 20 moles of propylene oxide per mole of lanolin alcohols; and (b) a dispensing means which provides for release of said softening composition within an automatic laundry dryer at dryer operating temperatures.
Claim 2
Dependent Claim
169 words
An article of manufacture adapted for providing fabric softening within an automatic laundry dryer, said article comprising: (a) a fabric softening amount of a softening composition, said composition having a melting point above about 38° C. and being flowable at fabric dryer operating temperature, said composition comprising: (i) from about 50% to about 95% by weight of the composition of a quaternary ammonium fabric softener material; and (ii) from about 5% up to about 50% by weight of the composition of lanolin alcohol component selected from the group consisting of lanolin alcohols, the aliphatic carboxylic acid esters of lanolin alcohols wherein the acid moieties of said esters contain from about 2 to about 22 carbon atoms and the propylene oxide adducts of lanolin alcohols wherein said adducts are the reaction product of from about 2 to about 20 moles of propylene oxide per mole of lanolin alcohols; and (b) a dispensing means which provides for release of said softening composition within an automatic laundry dryer at dryer operating temperatures.
Claim 3
Dependent Claim
16 words
An article according to claim 1 wherein the quaternary ammonium softener is in the methylsulfate form.
Claim 4
Dependent Claim
27 words
An article according to claim 2 wherein the quaternary ammonium softener is selected from the group consisting of ditallowalkyldimethylammonium methylsulfate, distearyldimethylammonium methylsulfate, dipalmityldimethylammonium methylsulfate and dibehenyldimethylammonium methylsulfate.
Claim 5
Dependent Claim
29 words
An article according to claim 3 wherein the amount of Component (i) in the softening composition is from about 50% to about 85% by weight of the softening composition.
Claim 6
Dependent Claim
24 words
An article according to claim 1 wherein the dispensing means comprises a flexible substrate in sheet configuration having the softening composition releasably affixed thereto.
Claim 7
Dependent Claim
80 words
An article according to claim 5 wherein the dispensing means comprises a flexible substrate in sheet configuration having an absorbent capacity of from about 2 to about 25 wherein the softening composition is impregnated into the substrate to provide a weight ratio of softening composition to dry substrate ranging from about 10:1 to about 0.5:1 and wherein said softening composition comprises from about 50% to about 85% of Component (i) and from about 15% to about 50% of Component (ii).
Claim 8
Dependent Claim
30 words
An article according to claim 6 wherein the substrate is a woven or non-woven cellulosic cloth or paper and has an absorbent capacity of from about 4 to about 12.
Claim 9
Dependent Claim
25 words
An article according to claim 7 wherein the substrate is a foamed plastic sheet having an absorbent capacity of from about 15 to about 22.
Claim 10
Dependent Claim
14 words
An article according to claim 1 wherein the dispensing means is an aerosol device.
Claim 11
Independent Claim
184 words
A method for imparting a softening and anti-static effect to fabrics in an automatic laundry dryer comprising commingling pieces of damp fabrics by tumbling said fabrics under heat in an automatic clothes dryer with an effective amount of a fabric softening composition, said composition having a melting point above about 38° C and being flowable at fabric dryer operating temperatures, said composition comprising: (i) from about 50% to about 95% by weight of the composition of a cationic quaternary ammonium softener material; and (ii) from about 5% up to about 50% by weight of the composition of lanolin alcohol component selected from the group consisting of lanolin alcohols, the aliphatic carboxylic acid esters of lanolin alcohols wherein the acid moieties of said esters contain from about 2 to about 22 carbon atoms and the propylene oxide adducts of lanolin alcohols wherein said adducts are the reaction product of from about 1 to about 20 moles of propylene oxide per mole of lanolin alcohols wherein said tumbling takes place at a temperature equal to or above that at which the fabric softening composition will flow.
Claim 12
Independent Claim
184 words
A method for imparting a softening and anti-static effect to fabrics in an automatic laundry dryer comprising commingling pieces of damp fabrics by tumbling said fabrics under heat in an automatic clothes dryer with an effective amount of a fabric softening composition, said composition having a melting point above about 38° C and being flowable at fabric dryer operating temperatures, said composition comprising: (i) from about 50% to about 95% by weight of the composition of a cationic quaternary ammonium softener material; and (ii) from about 5% up to about 50% by weight of the composition of lanolin alcohol component selected from the group consisting of lanolin alcohols, the aliphatic carboxylic acid esters of lanolin alcohols wherein the acid moieties of said esters contain from about 2 to about 22 carbon atoms and the propylene oxide adducts of lanolin alcohols wherein said adducts are the reaction product of from about 1 to about 20 moles of propylene oxide per mole of lanolin alcohols wherein said tumbling takes place at a temperature equal to or above that at which the fabric softening composition will flow.
Claim 13
Dependent Claim
15 words
The method of claim 10 wherein the quaternary ammonium softener is in the methylsulfate form.
Claim 14
Dependent Claim
27 words
The method according to claim 11 wherein the quaternary ammonium softener is selected from the group consisting of ditallowalkyldimethylammonium methylsulfate, distearyldimethylammonium methylsulfate, dipalmityldimethylammonium methylsulfate and dibehenyldimethylammonium methylsulfate.
Claim 15
Dependent Claim
28 words
The method of claim 12 wherein the amount of Component (i) in the softening composition is from about 50% to about 80% by weight of the softening composition.
Claim 16
Dependent Claim
26 words
The method according to claim 10 wherein the composition is dispensed within the dryer from a flexible substrate sheet having the softener composition releasably affixed thereto.
Claim 17
Dependent Claim
79 words
The method of claim 14 wherein the dispensing means comprises a flexible substrate in sheet configuration having an absorbent capacity of from about 2 to about 25 wherein the softening composition is impregnated into the substrate to provide a weight ratio of softening composition to dry substrate ranging from about 10:1 to about 0.5:1 and wherein said softening composition comprises from about 50% to about 85% of Component (i) and from about 15% to about 50% of Component (ii).
Claim 18
Dependent Claim
29 words
The method of claim 15 wherein the substrate is a woven or non-woven cellulosic cloth or paper and has an absorbent capacity of from about 4 to about 12.
Claim 19
Dependent Claim
24 words
The method of claim 16 wherein the substrate is a foamed plastic sheet having an absorbent capacity of from about 15 to about 22.
Claim 20
Dependent Claim
37 words
The method according to claim 10 wherein the softener composition is dispensed into the dryer from an aerosol dispensing device in a manner so as to coat the dryer drum before tumbling the fabrics in the dryer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-08-28 | 1982-02-27 | 1982-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-28 | 1986-02-27 | 1986-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-28 | 1990-02-27 | 1990-08-29 | $7700.00 | Window Closed / Lapsed |