Patent US4615814A successfully refreshed from Google Patents.
US4615814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous substrate with absorbed antistat or softener, used with detergent
Assignee: Purex Corp
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Filing: 1984-04-02
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Granted: 1986-10-07
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Expires: 2004-04-02
Abstract
Abstract A bead, useful in a fabric aqueous laundering process to impart to the fabric, when dried, at least one of the properties (i) softness, and (ii) antistatic effect, comprises a porous substrate, and substance absorbed onto said substrate to produce at least one of said (i) and (ii) properties in the fabric. A barrier layer may be formed about said substrate and characterized as dispersing in laundry wash water; a solubilizing or dispersion aid such as a nonionic surfactant may be mixed with said substance and also absorbed onto the substrate; and a hardener may be mixed with said substance and also absorbed onto the substrate.
Inventors
- 👤 Deborah Winetzky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:47
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/001; C11D1/00; C11D1/38; C11D1/62; C11D17/00; C11D17/0034; C11D17/0039
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
219 words
A bead useful in a fabric aqueous laundering process to impart to the fabric, when dried, at least one of the properties (i) softness, and (ii) anti static effect, said bead comprising (a) a porous substrate, (b) substance absorbed into said substrate to produce at least one of said (i) and (ii) properties in the fabric, said substance being cationic, and (c) a water dispersable barrier coating consisting of an ingredient selected from the group that consists of amorphous silica, inorganic salts, starch and powdered dyes, on the substrate and covering said substrate and absorbed substance to allow quick release of the said coating in laundry wash water, the coating average thickness being between about 1 micron and 1.0 mm, (d) a solubilizing or dispersion aid mixed with said substance and also absorbed into the substrate, (e) and a hardener mixed with said substance and aid and also absorbed into the substrate, (f) between 1% and 90% of the bead weight being defined by the substrate and between about 0.5% and 75% of the bead weight defined by said substance, and said mix consisting of from about 1% to 100% by weight of said substance, from about 1% to 100% by weight of said solubilizing or dispersion aid, and from about 0.1% to 100% by weight of said hardener.
Claim 2
Dependent Claim
219 words
A bead useful in a fabric aqueous laundering process to impart to the fabric, when dried, at least one of the properties (i) softness, and (ii) anti static effect, said bead comprising (a) a porous substrate, (b) substance absorbed into said substrate to produce at least one of said (i) and (ii) properties in the fabric, said substance being cationic, and (c) a water dispersable barrier coating consisting of an ingredient selected from the group that consists of amorphous silica, inorganic salts, starch and powdered dyes, on the substrate and covering said substrate and absorbed substance to allow quick release of the said coating in laundry wash water, the coating average thickness being between about 1 micron and 1.0 mm, (d) a solubilizing or dispersion aid mixed with said substance and also absorbed into the substrate, (e) and a hardener mixed with said substance and aid and also absorbed into the substrate, (f) between 1% and 90% of the bead weight being defined by the substrate and between about 0.5% and 75% of the bead weight defined by said substance, and said mix consisting of from about 1% to 100% by weight of said substance, from about 1% to 100% by weight of said solubilizing or dispersion aid, and from about 0.1% to 100% by weight of said hardener.
Claim 3
Dependent Claim
19 words
The bead of claim 1 wherein the bead has a cross dimension within the range 0.05 to 4.0 mm.
Claim 4
Dependent Claim
22 words
The bead of claim 2 wherein the substrate is selected from the group that consists of puffed borax, dendritic salt, and clay.
Claim 5
Dependent Claim
23 words
The bead of claim 3 where said substance comprises a material selected from the group consisting of quaternary ammonium compounds and imadazolinimum compounds.
Claim 6
Dependent Claim
14 words
The bead of 1 wherein said solubilizing or dispersion aid is a nonionic surfactant.
Claim 7
Dependent Claim
14 words
The bead of 1 wherein said solubilizing or dispersion aid is a nonionic surfactant.
Claim 8
Dependent Claim
66 words
The bead of claim 5 where said nonionic surfactant is selected from the group consisting of (x 1 ) condensation products of aliphatic alcohol with ethylene oxide (x 2 ) polyethylene oxide condensates of alkyl phenols (x 3 ) condensate products of ethylene oxide and an organic hydrophobic base (x 4 ) tertiary amine oxides (x 5 ) sulfoxide surfactants (x 6 ) phosphine oxide surfactants.
Claim 9
Dependent Claim
49 words
The bead of claim 1 wherein said solubilizing or dispersion aid is selected from the group consisting of (x 1 ) ampholytic surfactants which contain both anionic and cationic moieties, (x 2 ) Zwitterionic surfactants which also contain both anionic and cationic moieties, (x 3 ) fatty acid soap.
Claim 10
Dependent Claim
15 words
The bead of claim 1 wherein the barrier coating is in finely divided solid form.
Claim 11
Dependent Claim
16 words
A cleaning composition comprising multiple beads as defined in claim 1 admixed with dry laundry detergent.
Claim 12
Dependent Claim
18 words
A cleaning composition comprising multiple beads as defined in claim 1 admixed with carbonate based dry laundry detergent.
Claim 13
Dependent Claim
30 words
A composition comprising multiple beads as defined in claim 2 admixed with laundry detergent, and wherein the beads comprise between 0.01 and 50.0 percent , by weight, of the composition.
Claim 14
Dependent Claim
118 words
A composition comprising multiple beads as defined in claim 1 admixed with a laundry mix, and wherein the beads comprise between about 6.4 and 12.0 percent, by weight, of the composition, the laundry mix selected from the group that consists essentially of: (i) sodium linear dodecyl-benzene sulfonate sodium silicate sodium carbonate sodium sulfate (ii) sodium chloride sodium percarbonate a powder or flake containing about 81% sodium linear dodecyl-benzene sulfonate, and the balance moisture and sodium sulfate sodium carboxymethyl cellulose (iii) sodium linear dodecyl-benzene sulfonate sodium tripolyphosphate sodium silicate sodium carboxymethyl cellulose sodium sulfate (iv) sodium sesquicarbonate sodium carbonate sodium chloride sodium carboxymethyl cellulose sodium linear dodecyl-benzene sulfonate (v) sodium linear dodecyl-benzene sulfonate sodium carbonate sodium silicate sodium sulfate.
Claim 15
Dependent Claim
39 words
The bead as defined in claim 4 comprising (i) about 1% to 50% by weight of said porous substrate (ii) about 0.5% to 75% by weight of said substance (iii) about 1% to 30% by weight of said barrier.
Claim 16
Dependent Claim
49 words
The bead as defined in claim 13 wherein said substance comprises a mixture whose components comprise: from about 1% to 100% by weight of said material from about 1% to 100% by weight of a solubilizing or dispersing aid, from about 0.1 to 25% by weight of a hardener.
Claim 17
Independent Claim
246 words
The method of producing a bead useful in a fabric aqueous laundering process to impart to the fabric, when dried, at least one of the following properties: (i) softness, and (ii) antistatic effectiveness, said method including: (x 1 ) mixing porous substrate granules with a cationic substance that imparts at least one of said (i) and (ii) properties to the fabric, and (x 2 ) continuing said mixing until said substance is absorbed into the porous substrate, (x 3 ) and thereafter coating said granules and said substance absorbed therein with a barrier that resists tackiness of the beads, and that is dispersing in laundry wash water, and to a coating thickness between about 1 micron and 1.0 mm, the barrier consisting of an ingredient selected from the group that consists of amorphous silica, inorganic salts, and powdered dyes, (x 4 ) there being a solubilizing or dispersion aid mixed with said substance and also absorbed into the substrate, (x 5 ) and a hardener mixed with said substance and aid and also absorbed into the substrate, (x 6 ) between 1% and 90% of the bead weight being defined by the substrate and between about 0.5% and 75% of the bead weight defined by said substance, and said mix consisting of from about 1% to 100% by weight of said substance, from about 1% to 100% by weight of said solubilizing or dispersion aid, and from about 0.1% to 100% by weight of said hardener.
Claim 18
Independent Claim
246 words
The method of producing a bead useful in a fabric aqueous laundering process to impart to the fabric, when dried, at least one of the following properties: (i) softness, and (ii) antistatic effectiveness, said method including: (x 1 ) mixing porous substrate granules with a cationic substance that imparts at least one of said (i) and (ii) properties to the fabric, and (x 2 ) continuing said mixing until said substance is absorbed into the porous substrate, (x 3 ) and thereafter coating said granules and said substance absorbed therein with a barrier that resists tackiness of the beads, and that is dispersing in laundry wash water, and to a coating thickness between about 1 micron and 1.0 mm, the barrier consisting of an ingredient selected from the group that consists of amorphous silica, inorganic salts, and powdered dyes, (x 4 ) there being a solubilizing or dispersion aid mixed with said substance and also absorbed into the substrate, (x 5 ) and a hardener mixed with said substance and aid and also absorbed into the substrate, (x 6 ) between 1% and 90% of the bead weight being defined by the substrate and between about 0.5% and 75% of the bead weight defined by said substance, and said mix consisting of from about 1% to 100% by weight of said substance, from about 1% to 100% by weight of said solubilizing or dispersion aid, and from about 0.1% to 100% by weight of said hardener.
Claim 19
Dependent Claim
22 words
The method of claim 15 wherein said substrate is selected from the group that consists of puffed borax, dendritic salt, and clay.
Claim 20
Dependent Claim
23 words
The method of claim 16 wherein said substance comprises a material selected from the group consisting of quaternary ammonium compounds and imadazolinimum compounds.
Claim 21
Independent Claim
83 words
The method of treating fabrics in the laundry wash cycle wherein detergent is employed for cleaning, that comprises charging into the wash water multiple beads each consisting of (a) a porous substrate, (b) and cationic substance absorbed into said substrate to produce at least one of the properties (i) softness, and (ii) antistatic effect in the fabric, (c) and a water dispersible barrier on the substrate and covering said absorbed substance to allow rapid release of said substance upon dispersing of the barrier.
Claim 22
Independent Claim
83 words
The method of treating fabrics in the laundry wash cycle wherein detergent is employed for cleaning, that comprises charging into the wash water multiple beads each consisting of (a) a porous substrate, (b) and cationic substance absorbed into said substrate to produce at least one of the properties (i) softness, and (ii) antistatic effect in the fabric, (c) and a water dispersible barrier on the substrate and covering said absorbed substance to allow rapid release of said substance upon dispersing of the barrier.
Claim 23
Dependent Claim
22 words
The method of claim 18 wherein said substrate is selected from the group that consists of puffed borax, dendritic salt, and clay.
Claim 24
Dependent Claim
23 words
The method of claim 19 wherein said substance comprises a material selected from the group consisting of quaternary ammonium compounds and imadazolinimum compounds.
Claim 25
Dependent Claim
26 words
The method of claim 20 wherein each bead is coated with said water dispersable barrier to a coating thickness of between 1 micron and 1.0 mm.
Claim 26
Dependent Claim
19 words
The method of claim 19 wherein said beads are admixed with said detergent in dry form during said charging.
Claim 27
Dependent Claim
112 words
A composition comprising multiple beads as defined in claim 1 admixed with a detergent composition whose members comprise a surfactant selected from the group consisting of nonionic, zwitterionic and amphoteric surfactants; anionic surfactant selected from the group consisting of alkali metal, ammonia or amine salts of alkylbenzene sulfonate, ethoxylated sulfates, alpha olefin sulfonates and alcohol sulfates; builder salt selected from the group consisting of alkali metal salts of polyphosphates, orthophosphates, silicates, sulfate, chlorine, citrate, carbonate, bi-carbonate, zeolites, nitrilotriacetic acid, and ethylenediaminetriacetic acid; and additives selected from the following: bleaching agents, bleach activators, suds boosters or suppressors, anticorrosion agents, soil suspending agents, soil release agents, optical brighteners, hydrotropes, enzymes, water softeners and perfumes.
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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) | 1989-10-06 | 1990-04-07 | 1990-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-06 | 1994-04-07 | 1994-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-06 | 1998-04-07 | 1998-10-07 | $7700.00 | Window Closed / Lapsed |