US3268292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of treating cellulosic textiles with nu-methylol derivatives of tris (2-carbamoylethyl) phosphine oxide and products thereof
Assignee: Individual
•
Filing: 1964-02-24
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Granted: 1966-08-23
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Expires: 1984-02-24
Abstract
No abstract record available.
Inventors
- 👤 Leon H Chance
- 👤 Wilson A Reeves
- 👤 Jr George L Drake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:05
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/244; D06M13/282; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T442/00; Y10T442/20; Y10T442/2369; Y10T442/2393; Y10T442/2525; Y10T442/2631; Y10T442/2672; Y10T442/268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR TREATING A CELLULOSIC TEXTILE MATERIAL AND INDUCING THEREIN AS A RESULT OF SAID TREATMENT DIMENSION STABILITY, FLAME, CREASE, AND ROT-RESISTANCE, WHICH PROCESS COMPRISES WETTING THE CELLULOSIC TEXTILE MATERIAL WITH AN AQUEOUS SOLUTION CONTAINING (A) AN N-METHYLOL DERIVATIVE OF TRIS(2-CARBAMOYLETHYL)PHOSPHINE OXIDE PREPARED BY REACTING TRIS(2-CARBAMOYLETHYL)PHOSPHINE OXIDE WITH FORMALDEHYDE WITHIN A RANGE OF MOLE RATIOS OF FROM 1:1 TO 1:6 IN AN AQUEOUS ALKALINE SOLUTION AT ROOM TEMPERATURE FOR A TIME SUFFICIENT TO FORM SAID N-METHYLOL DERIVATIVE, AND (B) AN ACID TYPE CATALYST, AND HEAT CURING THE SO-WETTED CELLULOSIC TEXTILE MATERIAL TO THE DRIED STATE.
Claim 2
Dependent Claim
96 words
A PROCESS FOR TREATING A CELLULOSIC TEXTILE MATERIAL AND INDUCING THEREIN AS A RESULT OF SAID TREATMENT DIMENSION STABILITY, FLAME, CREASE, AND ROT-RESISTANCE, WHICH PROCESS COMPRISES WETTING THE CELLULOSIC TEXTILE MATERIAL WITH AN AQUEOUS SOLUTION CONTAINING (A) AN N-METHYLOL DERIVATIVE OF TRIS(2-CARBAMOYLETHYL)PHOSPHINE OXIDE PREPARED BY REACTING TRIS(2-CARBAMOYLETHYL)PHOSPHINE OXIDE WITH FORMALDEHYDE WITHIN A RANGE OF MOLE RATIOS OF FROM 1:1 TO 1:6 IN AN AQUEOUS ALKALINE SOLUTION AT ROOM TEMPERATURE FOR A TIME SUFFICIENT TO FORM SAID N-METHYLOL DERIVATIVE, AND (B) AN ACID TYPE CATALYST, AND HEAT CURING THE SO-WETTED CELLULOSIC TEXTILE MATERIAL TO THE DRIED STATE.
References Cited (Backward Citations)
US2809941A
Cited
US2812311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |