US4012326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additives for clothes dryers
Assignee: Conopco Inc
•
Filing: 1971-06-29
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Granted: 1977-03-15
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Expires: 1991-06-29
Abstract
Abstract A novel method for applying adjuvants to fabric employing a tumbler-type dryer is disclosed. To achieve uniform distribution in the dryer, the adjuvant, in accordance with the present invention, is diluted with a diluent spreadable under the dryer conditions, the concentration of the adjuvant in the diluent being effective but not in excess of about 95% by weight. Novel compositions of matter suitable for use in the practice of this invention are also disclosed.
Inventors
- 👤 Jerome Rudy
- 👤 Anthony A. Rapisarda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:52
CPC Classifications
D; D06; D06M; D06M23/00; D06F; D06F58/00; D06F58/20; D06F58/203; Y; Y10; Y10S; Y10S516/00; Y10S516/905; Y10S516/914
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
A composition of matter in solid form for the application of an adjuvant to a fabric in a tumbler-type dryer, consisting essentially of an adjuvant for said fabric and a distributing agent therefor, said adjuvant being present in an effective concentration not exceeding about 95% by weight and selected from the group consisting of fabric softeners, optical brighteners and anti-static agents and said distributing agent being selected from the group consisting of ammonium carbonate and water-soluble, lower molecular weight, innocuous hydroxy carboxylic acids which promote the spreading of the adjuvant.
Claim 2
Dependent Claim
90 words
A composition of matter in solid form for the application of an adjuvant to a fabric in a tumbler-type dryer, consisting essentially of an adjuvant for said fabric and a distributing agent therefor, said adjuvant being present in an effective concentration not exceeding about 95% by weight and selected from the group consisting of fabric softeners, optical brighteners and anti-static agents and said distributing agent being selected from the group consisting of ammonium carbonate and water-soluble, lower molecular weight, innocuous hydroxy carboxylic acids which promote the spreading of the adjuvant.
Claim 3
Dependent Claim
15 words
A composition of matter according to claim 1 wherein said distributing agent is ammonium carbonate.
Claim 4
Dependent Claim
170 words
A composition of matter according to claim 1 wherein said adjuvant is a fabric softening agent selected from the group consisting of (1) quaternary ammonium compounds of the formula [N(R 1 R 2 R 3 R 3 )]yX wherein R 1 is C 16 -C 20 alkyl, R 2 is C 1 -C 4 alkyl, each R 3 is selected from the group consisting of R 1 and R 2 , X is an anion imparting water dispersibility and y is the valency of X, and (2) the quaternized reaction product of about 2 moles of a fatty acid of the formula R 4 COOH and about one mole of a diamine of the formula ##STR2##wherein R 4 is a C 15 -C 19 alkyl, R 5 is a C 2 divalent hydrocarbon radical and R 6 is a C 1 -C 3 hydroxy alkyl, said reaction product containing about 25% quaternary compounds of the imidazoline type, the balance thereof being mixed esters and amides, and (3) quaternized tallow amidoimidazolines.
Claim 5
Dependent Claim
74 words
A composition of matter according to claim 3 wherein said adjuvant is a quaternary compound of the formula [N(R 1 R 2 R 3 R 3 )]yX wherein R 1 is C 16 -C 20 alkyl, R 2 is C 1 -C 4 alkyl, each R 3 is selected from the group consisting of R 1 and R 2 , X is an anion imparting water dispersibility and y is the valency of X.
Claim 6
Dependent Claim
22 words
A composition of matter according to claim 1 wherein the adjuvant is an effective softening agent for the fabric to be treated.
Claim 7
Dependent Claim
15 words
A composition of matter according to claim 5 wherein the fabric softening agent is cationic.
Claim 8
Dependent Claim
22 words
A composition of matter according to claim 1 wherein the adjuvant is an effective optical brightener for the fabric to be treated.
Claim 9
Dependent Claim
18 words
A composition of matter according to claim 7 wherein the optical brightener is a disulfonated, diamino stilbeno compound.
Claim 10
Dependent Claim
22 words
A composition of matter according to claim 1 wherein the adjuvant is an effective antistatic agent for the fabric to be treated.
Claim 11
Dependent Claim
30 words
A composition of matter according to claim 1 wherein the water soluble, lower molecular weight innocuous carboxylic acids are selected from the group consisting of citric, tartaric, and gluconic acids.
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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) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |