US3854871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile cleaning process for simultaneous dry cleaning and finishing with stain repellent
Assignee: EIDP Inc
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Filing: 1973-01-31
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Granted: 1974-12-17
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Expires: 1993-01-31
Abstract
Abstract A process for simultaneous cleaning and finishing of soiled textile material in which the textile is (A) exposed to a cleaning bath consisting essentially of a major amount of a textile dry cleaning solvent and minor amounts of water, and containing (1) a polyfluoroalkyl substituted stain repellent material and (2) an emulsifying agent which does not adversely influence the stain repellency of the treated textile material, and then (B) is dried.
Inventors
- 👤 A Eanzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:10
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/08; D06L1/04; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; D06M15/277
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
A PROCESS FOR SIMULTANEOUS CLEANING AND FINISHING OF SOILED TEXTILE MATERIALS IN WHICH THE TEXTILE IS A. TREATED AT FROM ABOUT 0* TO ABOUT 100*C. FOR FROM ABOUT 1 MINUTE TO ABOUT 30 MINUTES WITH A COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A TEXTILE DRY CLEANING SOLVENT; A MINOR AMOUNT OF WATER; AN AMOUNT SUFFICIENT TO GIVE ADD-ON OF 0.05 TO 0.5 PERCENT, BASED ON THE DRY WEIGHT OF TEXTILE OF A POLYFLUOROALKYL SUBSTITUTED STAIN REPELLENT; AND 5 TO 20 PERCENT, BASED ON THE WEIGHT OF STAIN REPELLENT, OF AN EMULSIFYING AGENT WHICH DOES NOT NEGATE THE STAIN REPELLENCY; AND THEN B. THE TREATED MATERIAL IS DRIED.
Claim 2
Dependent Claim
109 words
A PROCESS FOR SIMULTANEOUS CLEANING AND FINISHING OF SOILED TEXTILE MATERIALS IN WHICH THE TEXTILE IS A. TREATED AT FROM ABOUT 0* TO ABOUT 100*C. FOR FROM ABOUT 1 MINUTE TO ABOUT 30 MINUTES WITH A COMPOSITION CONSISTING ESSENTIALLY OF A MAJOR AMOUNT OF A TEXTILE DRY CLEANING SOLVENT; A MINOR AMOUNT OF WATER; AN AMOUNT SUFFICIENT TO GIVE ADD-ON OF 0.05 TO 0.5 PERCENT, BASED ON THE DRY WEIGHT OF TEXTILE OF A POLYFLUOROALKYL SUBSTITUTED STAIN REPELLENT; AND 5 TO 20 PERCENT, BASED ON THE WEIGHT OF STAIN REPELLENT, OF AN EMULSIFYING AGENT WHICH DOES NOT NEGATE THE STAIN REPELLENCY; AND THEN B. THE TREATED MATERIAL IS DRIED.
Claim 3
Dependent Claim
37 words
The process of claim 1 in which the stain repellent is substituted with polyfluoroalkyl substituents containing from 3 to 16 carbon atoms, and the emulsifying agent is a hydrocarbon copolymer of ethylene and an aminoalkyl acrylate monomer.
Claim 4
Dependent Claim
27 words
The process of claim 2 in which the emulsifying agent is present in amounts ranging from 10 to 20 percent based on the weight of stain repellent.
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) | 1977-12-16 | 1978-06-17 | 1978-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-16 | 1982-06-17 | 1982-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-16 | 1986-06-17 | 1986-12-17 | $7700.00 | Window Closed / Lapsed |