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Antistatic fabric conditioner compositions and method

Assignee: STWB Inc
•
Filing: 1984-05-07
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Granted: 1985-12-17
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Expires: 2004-05-07
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Abstract

Abstract Antistatic and fabric softener compositions for application to textile fabrics comprises a combination of an N,N-dialkyl-N,N-di-lower-alkyl quaternary ammonium salt either alone or in combination with an N-long-chain alkylamido-lower-alkyl-N,N-di-lower-alkyl-N-R 4 '-quaternary ammonium salt and critical amounts of a lactic acid salt and the method of use of such compositions for treating textile fabrics.

Inventors

  • 👤 David Pregozen
  • 👤 John J. Hiller, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 07:18
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/46; D06M13/467

Claims Analysis

Total Claims: 18
Claim 1
Independent Claim 263 words
An antistatic fabric conditioner composition comprising: (a) an antistatic-fabric conditioning agent comprising: (i) a quaternary ammonium salt component selected from the group consisting of a quaternary ammonium salt having the formula: ##STR3## wherein R 1 and R 2 each independently is long chain alkyl having from twelve to twenty-two carbon atoms, R 3 and R 4 each independently is lower-alkyl having from one to three carbon atoms, and An - is an anion; and a combination of the salt of formula I with a quaternary ammonium salt of the formula: ##STR4## wherein R 1 ' is long chain alkylamido-lower-alkyl having from ten to twenty carbon atoms in the long chain alkylamido moiety and from one to three carbon atoms in the lower-alkyl moiety, R 2 ' and R 3 ' each independently is lower-alkyl having from one to three carbon atoms, An' - is an anion, and R 4 ' is lower-alkyl having from one to three carbon atoms or benzyl, or R 4 ', together with the ammonium nitrogen atom and An' - , forms a zwitterion group; and (ii) a lactic acid salt selected from the group consisting of alkali metal lactate, alkaline earth metal lactate and ammonium lactate; and (b) a carrier for the antistatic-fabric conditioning agent selected from the group consisting of water, ethanol, propanol, isopropanol, an aliphatic hydrocarbon having from two to six carbon atoms, and combinations thereof; wherein the weight ratio of (i) to (ii) and of the salt of formula I to the salt of formula II each independently is from around 4:1 to around 1:1.
Claim 2
Dependent Claim 263 words
An antistatic fabric conditioner composition comprising: (a) an antistatic-fabric conditioning agent comprising: (i) a quaternary ammonium salt component selected from the group consisting of a quaternary ammonium salt having the formula: ##STR3## wherein R 1 and R 2 each independently is long chain alkyl having from twelve to twenty-two carbon atoms, R 3 and R 4 each independently is lower-alkyl having from one to three carbon atoms, and An - is an anion; and a combination of the salt of formula I with a quaternary ammonium salt of the formula: ##STR4## wherein R 1 ' is long chain alkylamido-lower-alkyl having from ten to twenty carbon atoms in the long chain alkylamido moiety and from one to three carbon atoms in the lower-alkyl moiety, R 2 ' and R 3 ' each independently is lower-alkyl having from one to three carbon atoms, An' - is an anion, and R 4 ' is lower-alkyl having from one to three carbon atoms or benzyl, or R 4 ', together with the ammonium nitrogen atom and An' - , forms a zwitterion group; and (ii) a lactic acid salt selected from the group consisting of alkali metal lactate, alkaline earth metal lactate and ammonium lactate; and (b) a carrier for the antistatic-fabric conditioning agent selected from the group consisting of water, ethanol, propanol, isopropanol, an aliphatic hydrocarbon having from two to six carbon atoms, and combinations thereof; wherein the weight ratio of (i) to (ii) and of the salt of formula I to the salt of formula II each independently is from around 4:1 to around 1:1.
Claim 3
Dependent Claim 56 words
A composition according to claim 1 which, relative to the combined weight of the antistatic-fabric conditioning agent and the carrier, contains from around 0.25 to around 2.0 weight percent of the quaternary ammonium salt component; from around 0.06 to around 2.0 weight percent of the lactic acid salt; and the balance to 100 weight percent carrier.
Claim 4
Dependent Claim 15 words
A composition according to claim 1 wherein the lactic acid salt is alkali metal lactate.
Claim 5
Dependent Claim 27 words
A composition according to claim 3 adapted for aerosol application wherein the carrier consists essentially of a combination of water and a blend of isobutane and propane.
Claim 6
Dependent Claim 34 words
A composition according to claim 4 wherein the weight ratio of isobutane to propane is 85:15 and the concentration of the blend is around 8 weight percent relative to the weight of the composition.
Claim 7
Dependent Claim 48 words
A composition according to claim 5 wherein the antistatic-fabric conditioning agent comprises N,N-dimethyl-N,N-distearylammonium methosulfate, N-(3-isostearylamidopropyl)-N,N-dimethyl-N-ethylammonium ethosulfate and sodium lactate; and the weight ratio of the combined quaternary ammonium salts to the sodium lactate and of the quaternary ammonium methosulfate to the quaternary ammonium ethosulfate each is around 3:1.
Claim 8
Independent Claim 250 words
A method of reducing or inhibiting the accumulation of an electrostatic charge on a textile fabric which comprises applying to the fabric an effective amount of an antistatic-fabric conditioning agent comprising: (i) a quaternary ammonium salt component selected from the group consisting of a quaternary ammonium salt having the formula: ##STR5## wherein R 1 and R 2 each independently is long chain alkyl having from twelve to twenty-two carbon atoms, R 3 and R 4 each independently is lower-alkyl having from one to three carbon atoms, and An - is an anion; and a combination of the salt of formula I with a quaternary ammonium salt of the formula: ##STR6## wherein R 1 ' is long chain alkylamido-lower-alkyl having from ten to twenty carbon atoms in the long chain alkylamido moiety and from one to three carbon atoms in the lower-alkyl moiety, R 2 ' and R 3 ' each independently is lower-alkyl having from one to three carbon atoms, An' - is an anion, and R 4 ' is lower-alkyl having from one to three carbon atoms or benzyl, or R 4 ', together with the ammonium nitrogen atom and An' - , forms a zwitterion group; and (ii) a lactic acid salt selected from the group consisting of alkali metal lactate, alkaline earth metal lactate and ammonium lactate; wherein the weight ratio of (i) to (ii) and of the salt of formula I to the salt of formula II each independently is from around 4:1 to around 1:1.
Claim 9
Independent Claim 250 words
A method of reducing or inhibiting the accumulation of an electrostatic charge on a textile fabric which comprises applying to the fabric an effective amount of an antistatic-fabric conditioning agent comprising: (i) a quaternary ammonium salt component selected from the group consisting of a quaternary ammonium salt having the formula: ##STR5## wherein R 1 and R 2 each independently is long chain alkyl having from twelve to twenty-two carbon atoms, R 3 and R 4 each independently is lower-alkyl having from one to three carbon atoms, and An - is an anion; and a combination of the salt of formula I with a quaternary ammonium salt of the formula: ##STR6## wherein R 1 ' is long chain alkylamido-lower-alkyl having from ten to twenty carbon atoms in the long chain alkylamido moiety and from one to three carbon atoms in the lower-alkyl moiety, R 2 ' and R 3 ' each independently is lower-alkyl having from one to three carbon atoms, An' - is an anion, and R 4 ' is lower-alkyl having from one to three carbon atoms or benzyl, or R 4 ', together with the ammonium nitrogen atom and An' - , forms a zwitterion group; and (ii) a lactic acid salt selected from the group consisting of alkali metal lactate, alkaline earth metal lactate and ammonium lactate; wherein the weight ratio of (i) to (ii) and of the salt of formula I to the salt of formula II each independently is from around 4:1 to around 1:1.
Claim 10
Dependent Claim 15 words
A method according to claim 7 wherein the lactic acid salt is alkali metal lactate.
Claim 11
Dependent Claim 48 words
A method according to claim 8 wherein the antistatic-fabric conditioning agent comprises N,N-dimethyl-N,N-distearylammonium methosulfate, N-(3-isostearylamidopropyl)-N,N-dimethyl-N-ethylammonium ethosulfate and sodium lactate; and the weight ratio of the combined quaternary ammonium salts to the sodium lactate and of the quaternary ammonium methosulfate to the quaternary ammonium ethosulfate each is around 3:1.
Claim 12
Independent Claim 293 words
A method of treating a textile fabric to reduce or inhibit the accumulation of an electrostatic charge thereon which comprises applying to the fabric an effective amount of an antistatic-fabric conditioning composition comprising: (a) an antistatic-fabric conditioning agent comprising: (i) a quaternary ammonium salt component selected from the group consisting of a quaternary ammonium salt having the formula: ##STR7## wherein R 1 and R 2 each independently is long chain alkyl having from twelve to twenty-two carbon atoms, R 3 and R 4 each independently is lower-alkyl having from one to three carbon atoms, and An - is an anion; and a combination of the salt of formula I with a quaternary ammonium salt of the formula: ##STR8## wherein R 1 ' is long chain alkylamido-lower-alkyl having from ten to twenty carbon atoms in the long chain alkylamido moiety and from one to three carbon atoms in the lower-alkyl moiety, R 2 ' and R 3 ' each independently is lower-alkyl having from one to three carbon atoms, An' - is an anion, and R 4 ' is lower-alkyl having from one to three carbon atoms or benzyl, or R 4 ', together with the ammonium nitrogen atom and An' - , forms a zwitterion group; and (ii) a lactic acid salt selected from the group consisting of alkali metal lactate, alkaline earth metal lactate and ammonium lactate; and (b) a carrier for the antistatic-fabric conditioning agent selected from the group consisting of water, ethanol, propanol, isopropanol, an aliphatic hydrocarbon having from two to six carbon atoms, and combinations thereof; wherein the weight ratio of (i) to (ii) of the salt of formula I to the salt of formula II each independently is from around 4:1 to around 1:1; and drying the fabric.
Claim 13
Independent Claim 293 words
A method of treating a textile fabric to reduce or inhibit the accumulation of an electrostatic charge thereon which comprises applying to the fabric an effective amount of an antistatic-fabric conditioning composition comprising: (a) an antistatic-fabric conditioning agent comprising: (i) a quaternary ammonium salt component selected from the group consisting of a quaternary ammonium salt having the formula: ##STR7## wherein R 1 and R 2 each independently is long chain alkyl having from twelve to twenty-two carbon atoms, R 3 and R 4 each independently is lower-alkyl having from one to three carbon atoms, and An - is an anion; and a combination of the salt of formula I with a quaternary ammonium salt of the formula: ##STR8## wherein R 1 ' is long chain alkylamido-lower-alkyl having from ten to twenty carbon atoms in the long chain alkylamido moiety and from one to three carbon atoms in the lower-alkyl moiety, R 2 ' and R 3 ' each independently is lower-alkyl having from one to three carbon atoms, An' - is an anion, and R 4 ' is lower-alkyl having from one to three carbon atoms or benzyl, or R 4 ', together with the ammonium nitrogen atom and An' - , forms a zwitterion group; and (ii) a lactic acid salt selected from the group consisting of alkali metal lactate, alkaline earth metal lactate and ammonium lactate; and (b) a carrier for the antistatic-fabric conditioning agent selected from the group consisting of water, ethanol, propanol, isopropanol, an aliphatic hydrocarbon having from two to six carbon atoms, and combinations thereof; wherein the weight ratio of (i) to (ii) of the salt of formula I to the salt of formula II each independently is from around 4:1 to around 1:1; and drying the fabric.
Claim 14
Dependent Claim 22 words
A method according to claim 10 whereby the fabric is dried by subjecting it to a tumbling action in a clothes dryer.
Claim 15
Dependent Claim 16 words
A method according to claim 10 wherein the lactic acid salt is an alkali metal lactate.
Claim 16
Dependent Claim 42 words
A method according to claim 12 wherein the antistatic-fabric conditioning composition is applied to the fabric as an aerosol spray from a pressurized container and wherein the carrier consists essentially of a combination of water and a blend of isobutane and propane.
Claim 17
Dependent Claim 34 words
A method according to claim 13 wherein the weight ratio of isobutane to propane is 85:15 and the concentration of the blend is around 8 weight percent relative to the weight of the composition.
Claim 18
Dependent Claim 48 words
A method according to claim 14 wherein the antistatic-fabric conditioning composition comprises N,N-dimethyl-N,N-distearylammonium methosulfate, N-(3-isostearylamidopropyl)-N,N-dimethyl-N-ethylammonium ethosulfate and sodium lactate; and the weight ratio of the combined quaternary ammonium salts to the sodium lactate and of the quaternary ammonium methosulfate to the quaternary ammonium ethosulfate each is around 3:1.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-12-16 1989-06-17 1989-12-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-12-16 1993-06-17 1993-12-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-12-16 1997-06-17 1997-12-17 $7700.00 Window Closed / Lapsed

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