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US2992138A Expired / Lapsed US ⏱️ 0.0 years remaining

Cellulosic textile treating composition and process

Assignee: EIDP Inc
•
Filing: 1958-04-17
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Granted: 1961-07-11
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Expires: 1978-04-17
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Abstract

No abstract record available.

Inventors

  • 👤 Osborne C Bacon

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-31 23:02
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/39; D06M15/423

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 151 words
IN THE PROCESS OF TREATING CELLULOSIC TEXTILES WITH A FABRIC STABILIZER TAKEN FROM THE GROUP CONSISTING OF DIMETHYLOLETHYLENEUREA AND A MIXTURE OF DIMETHYLOLETHYLENEUREA AND TETRAMETHYLOLUREA, SAID MIXTURE COMPRISING AT LEAST 20% BY WEIGHT OF THE MIXTURE OF DIMETHYLOLETHYLENEUREA, THE IMPROVEMENT WHICH CONSISTS OF PADDING THE TEXTILE WITH A PAD BATH CONTAINING FROM ABOUT 2 TO ABOUT 10% BY WEIGHT OF THE BATH OF THE FABRIC STABILIZER, 0.25% TO 2.0% BY WEIGHT OF ZINC NITRATE AND .05% TO 2.0% BY WEIGHT OF SODIUM ACETATE, AND WITHIN 24 HOURS AFTER CURING THE FABRIC AT 300*F. TO 400*F. FOR 0.5 TO 10 MINUTES, NEUTRALIZING THE FABRIC BY WASHING IT WITH AN AQUEOUS ALKALINE SOLUTION UNTIL THE EQUILIBRIUM PH OF THE WASHING SOLUTION CONTAINING THE TEXTILE IS BETWEEN ABOUT 8.0 AND 11.0 FOLLOWED BY RINSING THE NEUTRALIZED FABRIC UNTIL THE EQUILIBRIUM PH OF THE RINSING SOLUTION CONTAINING THE FABRIC IS BETWEEN ABOUT 7.0 AND 8.0.

References Cited (Backward Citations)

US2316057A Cited
US2388143A Cited
US2460700A Cited
US2653921A Cited
US2661312A Cited
US2731364A Cited
US2819179A Cited
US2808341A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1964-07-10 1965-01-09 1965-07-11 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1968-07-10 1969-01-09 1969-07-11 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1972-07-10 1973-01-09 1973-07-11 $7700.00 Window Closed / Lapsed

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