US3909476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary soil release resins applied to fabrics in laundering
Assignee: Arkema Inc
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Filing: 1973-10-12
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Granted: 1975-09-30
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Expires: 1993-10-12
Abstract
Abstract A laundering process and novel laundering composition used to impart temporary soil release properties to textile fabrics by impregnating the fabrics with an acrylic resin in the final step of a laundering operation, usually in the sour operation. The fabrics are then dried leaving a residue of the resin on the fabrics which helps remove after acquired stains. The resin impregnation can be combined with fabric finishing treatments such as blueing, sizing, brightening and softening. The process is repeated with each subsequent laundering of the fabrics to obtain optimum soil release and stain removal. The laundering compositions comprise water, acrylic resin, and laundry sour or other fabric finishing agent.
Inventors
- 👤 Jr Harry Creston Mandell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:01
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C11D3/3757; C11D3/3765; C11D3/0005; C11D3/0036; D; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/13; D06M11/77; D06M11/78; D06M15/00; D06M15/19; D06M15/21; D06M15/263
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
125 words
THE LAUNDRY COMPOSITION CONSISTING ESSENTIALLY OF WATER, AN ACRYLIC RESIN AT A CONCENTRATION WITHIN THE RANGE OF 0.25 TO 3.0 PARTS BY WEIGHT PER 5000 PARTS OF WEIGHT OF THE LAUNDRY COMPOSITION SELECTED FROM ONE OR MORE OF THE GROUP CONSISTING OF POLYARCYLIC ACID, POLYMETHACRYLIC ACID AND COPOLYMERS OF ACRYLIC ACID, METHACRYLIC ACID AND METHYL METHACRYLATE WITH ALKYLESTERS OF ACRYLIC ACID AND METHACRYLIC ACID SAID ALKYL GROUPS BEING LIMITED FROM 1 TO 4 CARBON ATOMS, AND ONE OR MORE ACID LIBERATING COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF AMMONIUM FLUOSILICATE, MAGNESIUM FLUOSILICATE, SODIUM FLUOSILICATE, ZINC FLUOSILICATE, SODIUM BIFLUORIDE, AMMONIUM BILFLUORIDE, AMMONIUN CHLORIDE, ACETIC ACID, FLUOSILICID ACID AND HYDROFLUORIC ACID IN AN AMOUNT TO GIVE THE COMPOSITION A PH WITHIN THE RANGE OF 4 TO 6.5.
Claim 2
Dependent Claim
125 words
THE LAUNDRY COMPOSITION CONSISTING ESSENTIALLY OF WATER, AN ACRYLIC RESIN AT A CONCENTRATION WITHIN THE RANGE OF 0.25 TO 3.0 PARTS BY WEIGHT PER 5000 PARTS OF WEIGHT OF THE LAUNDRY COMPOSITION SELECTED FROM ONE OR MORE OF THE GROUP CONSISTING OF POLYARCYLIC ACID, POLYMETHACRYLIC ACID AND COPOLYMERS OF ACRYLIC ACID, METHACRYLIC ACID AND METHYL METHACRYLATE WITH ALKYLESTERS OF ACRYLIC ACID AND METHACRYLIC ACID SAID ALKYL GROUPS BEING LIMITED FROM 1 TO 4 CARBON ATOMS, AND ONE OR MORE ACID LIBERATING COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF AMMONIUM FLUOSILICATE, MAGNESIUM FLUOSILICATE, SODIUM FLUOSILICATE, ZINC FLUOSILICATE, SODIUM BIFLUORIDE, AMMONIUM BILFLUORIDE, AMMONIUN CHLORIDE, ACETIC ACID, FLUOSILICID ACID AND HYDROFLUORIC ACID IN AN AMOUNT TO GIVE THE COMPOSITION A PH WITHIN THE RANGE OF 4 TO 6.5.
Claim 3
Dependent Claim
31 words
The composition of claim 1 to which there is added an effective amount of one or more fabric finishing agents selected from the group consisting of blueing, brighteners, softeners and sizing.
Claim 4
Dependent Claim
14 words
The composition of claim 2 in which the fabric finishing agent is laundry sizing.
Claim 5
Dependent Claim
15 words
The composition of claim 2 in which the fabric finishing agent is a fabric softener.
Claim 6
Dependent Claim
15 words
The composition of claim 2 in which the fabric finishing agent is a fabric brightener.
References Cited (Backward Citations)
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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) | 1978-09-29 | 1979-03-31 | 1979-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-29 | 1983-03-31 | 1983-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-29 | 1987-03-31 | 1987-09-30 | $7700.00 | Window Closed / Lapsed |