US4238531A — Additives for clothes dryers

Claim 1

Independent Claim 209 words

An article of manufacture consisting essentially of (1) a composition for 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 being selected from the group consisting of fabric softeners, optical brighteners, antistatic agents, stain repellents, soil release agents, wrinkle preventatives, deodorizers, fresheners, cleaning agents, surfactants, moth proofing agents, and bleaching agents and said distributing agent being selected from the group consisting of ammonium carbonate, short chain quaternary compounds of the formula [N(R 2 R 7 R 8 R 8 )]yX wherein R 2 is a C 1 -C 4 alkyl, R 7 is a C 10 -C 14 alkyl, each R 8 is selected from the group consisting of R 2 and R 7 , X is an anion imparting water dispersibility and y is the valency of X, condensates of alkyl alcohols and ethylene oxide which melt at dryer temperatures, and lower molecular weight, innocuous carboxylic acids which promote the spreading of the adjuvant, and which are soluble in the water accompanying spun-dried clothes, and (2) a means for applying said composition to the fabric in said dryer.

Claim 2

Dependent Claim 209 words

An article of manufacture consisting essentially of (1) a composition for 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 being selected from the group consisting of fabric softeners, optical brighteners, antistatic agents, stain repellents, soil release agents, wrinkle preventatives, deodorizers, fresheners, cleaning agents, surfactants, moth proofing agents, and bleaching agents and said distributing agent being selected from the group consisting of ammonium carbonate, short chain quaternary compounds of the formula [N(R 2 R 7 R 8 R 8 )]yX wherein R 2 is a C 1 -C 4 alkyl, R 7 is a C 10 -C 14 alkyl, each R 8 is selected from the group consisting of R 2 and R 7 , X is an anion imparting water dispersibility and y is the valency of X, condensates of alkyl alcohols and ethylene oxide which melt at dryer temperatures, and lower molecular weight, innocuous carboxylic acids which promote the spreading of the adjuvant, and which are soluble in the water accompanying spun-dried clothes, and (2) a means for applying said composition to the fabric in said dryer.

Claim 3

Dependent Claim 15 words

An article of manufacture according to claim 1 wherein said means is a backing sheet.

Claim 4

Dependent Claim 14 words

An article of manufacture according to claim 2 wherein the backing sheet is paper.

Claim 5

Dependent Claim 207 words

In a method for applying an adjuvant to a fabric in a tumbler-type dryer, the improvement which comprises adding said adjuvant for the fabric to the dryer in combination with a distributing agent for the adjuvant, said adjuvant being present in an effective concentration not exceeding about 95% by weight, based on the combined weight of the adjuvant and distributing agent, and being selected from the group consisting of fabric softeners, optical brighteners, antistatic agents, strain repellents, soil release agents, wrinkle preventatives, deodorizers, fresheners, cleaning agents, surfactants, moth proofing agents, and bleaching agents, and said distributing agent being selected from the group consisting of ammonium carbonate, short chain quaternary compounds of the formula [N(R 2 R 7 R 8 R 8 ]yX wherein R 2 is a C 1 -C 4 alkyl, R 7 is a C 10 -C 14 alkyl, each R 8 is selected from the group consisting of R 2 and R 7 , X is an anion imparting water dispersibility and y is the valency of X, condensates of alkyl alcohols and ethylene oxide which melt at dryer temperatures, and lower molecular weight, innocuous carboxylic acids which promote the spreading of the adjuvant, and which are soluble in the water accompanying spun-dried clothes.

Claim 6

Dependent Claim 207 words

In a method for applying an adjuvant to a fabric in a tumbler-type dryer, the improvement which comprises adding said adjuvant for the fabric to the dryer in combination with a distributing agent for the adjuvant, said adjuvant being present in an effective concentration not exceeding about 95% by weight, based on the combined weight of the adjuvant and distributing agent, and being selected from the group consisting of fabric softeners, optical brighteners, antistatic agents, strain repellents, soil release agents, wrinkle preventatives, deodorizers, fresheners, cleaning agents, surfactants, moth proofing agents, and bleaching agents, and said distributing agent being selected from the group consisting of ammonium carbonate, short chain quaternary compounds of the formula [N(R 2 R 7 R 8 R 8 ]yX wherein R 2 is a C 1 -C 4 alkyl, R 7 is a C 10 -C 14 alkyl, each R 8 is selected from the group consisting of R 2 and R 7 , X is an anion imparting water dispersibility and y is the valency of X, condensates of alkyl alcohols and ethylene oxide which melt at dryer temperatures, and lower molecular weight, innocuous carboxylic acids which promote the spreading of the adjuvant, and which are soluble in the water accompanying spun-dried clothes.

Claim 7

Dependent Claim 168 words

A method according to claim 4 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 reaction product of about two 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 in the order of 25% quaternary compounds of the imidazoline type, the balance thereof being mixed esters and amides, and amidoimidazolines.

Claim 8

Dependent Claim 72 words

A method according to claim 5 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 9

Dependent Claim 30 words

A method according to claim 4 wherein the adjuvant and distributing agent are added in combination with a means for applying said adjuvant and said distributing agent to said dryer.

Claim 10

Dependent Claim 13 words

A method according to claim 7 wherein said means is a backing sheet.

Claim 11

Dependent Claim 12 words

A method according to claim 8 wherein said backing sheet is paper.

Claim 12

Dependent Claim 169 words

A composition for application 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 being selected from the group consisting of fabric softeners, optical brighteners, antistatic agents, stain repellents, soil release agents, wrinkle preventatives, deodorizers, fresheners, cleaning agents, surfactants, moth proofing agents, and bleaching agents, and said distributing agent being selected from the group consisting of short chain quaternary compounds of the formula [N(R 2 R 7 R 8 R 8 )]yX wherein R 2 is a C 1 -C 4 alkyl, R 7 is a C 10 -C 14 alkyl, each R 8 is selected from the group consisting of R 2 and R 7 , X is an anion imparting water dispersibility and y is the valency of; X and condensates of alkyl alcohols and ethylene oxide, wherein said distributing agent melts at dryer temperatures and promotes the spreading of the adjuvant.

Claim 13

Dependent Claim 169 words

A composition for application 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 being selected from the group consisting of fabric softeners, optical brighteners, antistatic agents, stain repellents, soil release agents, wrinkle preventatives, deodorizers, fresheners, cleaning agents, surfactants, moth proofing agents, and bleaching agents, and said distributing agent being selected from the group consisting of short chain quaternary compounds of the formula [N(R 2 R 7 R 8 R 8 )]yX wherein R 2 is a C 1 -C 4 alkyl, R 7 is a C 10 -C 14 alkyl, each R 8 is selected from the group consisting of R 2 and R 7 , X is an anion imparting water dispersibility and y is the valency of; X and condensates of alkyl alcohols and ethylene oxide, wherein said distributing agent melts at dryer temperatures and promotes the spreading of the adjuvant.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1983-12-09	1984-06-09	1984-12-09	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1987-12-09	1988-06-09	1988-12-09	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1991-12-09	1992-06-09	1992-12-09	$7700.00	Window Closed / Lapsed

Additives for clothes dryers

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