US3084072A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dimensional stabilization of cellulose materials
Assignee: Jacques Wolf & Co
•
Filing: 1960-12-27
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Granted: 1963-04-02
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Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 Stanton E Deeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:54
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/667; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2965; Y10T442/00; Y10T442/20; Y10T442/2631; Y10T442/2672; Y10T442/2689
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
A PROCESS FOR DIMENSIONALLY STABILIZING CELLULOSE FIBER AND FABRIC MATERIAL WHICH COMPRISES POLYMERIZING AND BONDING TETRAKIS (HYDROXY METHYL) PHOSPHONIUM CHLORIDE ONTO SAID MATERIAL IN ONE STEP BY IMMERSING SAID MATETRIAL IN AN INERT SOLVENT CONTAINING NEUTRALIZED TETRAKIS (HYDROXY METHYL) PHOSPHONUM CHLORIDE AND CONTACTING SAID MATERIAL THROUGHOUT WHILE IMMERSED IN SAID SOLUTION WITH AMMONIA WHILE MAINTAINING THE PH OF SAID SOLUTION BETWEEN 7.2 AND 7.5 UNTIL ALL OF SAID TETRAKIS (HYDROXY METHYL) PHOSPHONIUM CHLORIDE HAS BEEN DISPERSED ONTO AND BONDED TO SAID MATERIAL, THEREAFTER REMOVING SAID MATERIAL FROM SAID BATH AND DRYING SAID MATERIAL, THERE BEING PRESENT IN SAID SOLVENT AT LEAST ABOUT 5% OF TETRAKIS (HYDROXY METHYL) PHOSPHONIUM CHLORIDE BASED ON WEIGHT OF SAID MATERIAL.
Claim 2
Dependent Claim
115 words
A PROCESS FOR DIMENSIONALLY STABILIZING CELLULOSE FIBER AND FABRIC MATERIAL WHICH COMPRISES POLYMERIZING AND BONDING TETRAKIS (HYDROXY METHYL) PHOSPHONIUM CHLORIDE ONTO SAID MATERIAL IN ONE STEP BY IMMERSING SAID MATETRIAL IN AN INERT SOLVENT CONTAINING NEUTRALIZED TETRAKIS (HYDROXY METHYL) PHOSPHONUM CHLORIDE AND CONTACTING SAID MATERIAL THROUGHOUT WHILE IMMERSED IN SAID SOLUTION WITH AMMONIA WHILE MAINTAINING THE PH OF SAID SOLUTION BETWEEN 7.2 AND 7.5 UNTIL ALL OF SAID TETRAKIS (HYDROXY METHYL) PHOSPHONIUM CHLORIDE HAS BEEN DISPERSED ONTO AND BONDED TO SAID MATERIAL, THEREAFTER REMOVING SAID MATERIAL FROM SAID BATH AND DRYING SAID MATERIAL, THERE BEING PRESENT IN SAID SOLVENT AT LEAST ABOUT 5% OF TETRAKIS (HYDROXY METHYL) PHOSPHONIUM CHLORIDE BASED ON WEIGHT OF SAID MATERIAL.
References Cited (Backward Citations)
US2809941A
Cited
US2772188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |