US3995085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabrics treated with hybrid tetracopolymers and process
Assignee: 3M Co
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Filing: 1975-12-04
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Granted: 1976-11-30
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Expires: 1995-12-04
Abstract
Abstract A new class of hybrid copolymers which confer improved spray rating, resistance to staining, particularly aqueous stains and improved resistance to crocking on surfaces is obtained from (I) fluoroaliphatic radical-containing component in combination with (II) hydrocarbyl radical-containing component together conferring controlled oleophobicity and hydrophobicity in air and (III) a balanced combination of hydrophilic components conferring oleophobicity in water.
Inventors
- 👤 Joseph Dana McCown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:15
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/22; C08F220/24; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/2279; Y10T442/2287; Y10T442/2369; Y10T442/2393
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
111 words
A process for simultaneously conferring both stain repellency and soil releasing properties on a fabric of natural or synthetic fibers comprising the steps of applying to said fabric and drying thereon a solution or dispersion in aqueous or nonaqueous solvent of hybrid tetracopolymer consisting essentially of 40 to 70% fluoroaliphatic radical containing acrylate or methacrylate, 5 to 15% of an acrylate or methacrylate of alkyl of 1-4 carbon atoms, 20 to 30% polyoxyethylene acrylate or methacrylate and 5 to 15% of an acrylate or methacrylate of polyoxypropylene or polyoxytetramethylene, said solution being applied in an amount sufficient to provide from 0.02 to 1% by weight of carbon-bonded fluorine on said fabric.
Claim 2
Dependent Claim
111 words
A process for simultaneously conferring both stain repellency and soil releasing properties on a fabric of natural or synthetic fibers comprising the steps of applying to said fabric and drying thereon a solution or dispersion in aqueous or nonaqueous solvent of hybrid tetracopolymer consisting essentially of 40 to 70% fluoroaliphatic radical containing acrylate or methacrylate, 5 to 15% of an acrylate or methacrylate of alkyl of 1-4 carbon atoms, 20 to 30% polyoxyethylene acrylate or methacrylate and 5 to 15% of an acrylate or methacrylate of polyoxypropylene or polyoxytetramethylene, said solution being applied in an amount sufficient to provide from 0.02 to 1% by weight of carbon-bonded fluorine on said fabric.
Claim 3
Dependent Claim
63 words
A fabric of natural or synthetic fibers having a coating comprising a hybrid copolymer consisting essentially of the polymer of 40 to 70% fluoroaliphatic radical containing acrylate or methacrylate, 5 to 15% of an acrylate or methacrylate of alkyl of 1-4 carbon atoms, 20 to 30% polyoxyethylene acrylate or methacrylate and 5 to 15% of an acrylate or methacrylate of polyoxypropylene or polyoxytetramethylene.
Claim 4
Dependent Claim
63 words
A fabric of natural or synthetic fibers having a coating comprising a hybrid copolymer consisting essentially of the polymer of 40 to 70% fluoroaliphatic radical containing acrylate or methacrylate, 5 to 15% of an acrylate or methacrylate of alkyl of 1-4 carbon atoms, 20 to 30% polyoxyethylene acrylate or methacrylate and 5 to 15% of an acrylate or methacrylate of polyoxypropylene or polyoxytetramethylene.
Claim 5
Dependent Claim
25 words
A fabric of natural or synthetic fibers according to claim 2 having a coating additionally comprising a fluoroaliphatic radical containing polymer devoid of polyoxyalkylene groups.
Claim 6
Dependent Claim
21 words
A fabric of natural or synthetic fibers according to claim 2 having a coating additionally comprising an aminoplast crease resistant resin.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-11-30 | 1980-05-31 | 1980-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-30 | 1984-05-31 | 1984-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-30 | 1988-05-31 | 1988-11-30 | $7700.00 | Window Closed / Lapsed |