US3186901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sizing cellulose fibers with resinous material from the plant grindelia and product thereof
Assignee: Ashland LLC
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Filing: 1963-03-01
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Granted: 1965-06-01
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Expires: 1983-03-01
Abstract
No abstract record available.
Inventors
- 👤 Ralph E Mcnay
- 👤 William R Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:15
CPC Classifications
D; D21; D21H; D21H17/00; D21H17/62
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
A METHOD OF PRODUCING RESIN-COATED FIBERS, COMPRISING: MIXING TOGETHER IN AN AQUEOUS SUSPENSION CELLULOSE FIBERS, AN AQUEOUS ALKALI SOLUTION OF RESINOUS MATERIAL INCLUDING AT LEAST ONE FRACTION OF THE PLANT GRINDELIA SELECTED FROM THE GROUP CONSISTING OF FRACTION SOLUBLE IN HYDROCARBON SOLVENT AND FRACTION INSOLUBLE IN HYDROCARBON SOLVENT BUT SOLUBLE IN LOWER ALKANOLS CONTAINING FROM ONE TO ABOUT FIVE CARBON ATOMS, AND A COAGULANT IN SUFFICIENT AMOUNT TO PRECIPITATE SAID RESIN ON THE FIBERS; AND RECOVERING THE COATED FIBERS FROM THE SUSPENSION.
Claim 2
Independent Claim
82 words
A METHOD OF PRODUCING RESIN-COATED FIBERS, COMPRISING: MIXING TOGETHER IN AN AQUEOUS SUSPENSION CELLULOSE FIBERS, AN AQUEOUS ALKALI SOLUTION OF RESINOUS MATERIAL INCLUDING AT LEAST ONE FRACTION OF THE PLANT GRINDELIA SELECTED FROM THE GROUP CONSISTING OF FRACTION SOLUBLE IN HYDROCARBON SOLVENT AND FRACTION INSOLUBLE IN HYDROCARBON SOLVENT BUT SOLUBLE IN LOWER ALKANOLS CONTAINING FROM ONE TO ABOUT FIVE CARBON ATOMS, AND A COAGULANT IN SUFFICIENT AMOUNT TO PRECIPITATE SAID RESIN ON THE FIBERS; AND RECOVERING THE COATED FIBERS FROM THE SUSPENSION.
Claim 3
Dependent Claim
49 words
CELLULOSIC FIBERS HAVING AN ADHERENT SURFACE LAYER OF RESINOUS MATERIAL INCLUDING AT LEAST ONE FRACTION OF THE PLANT GRINDELIA SELECTED FROM THE GROUP CONSISTING OF FRACTIONS SOLUBLE IN HYDROCARBON SOLVENT AND FRACTIONS INSOLUBLE IN HYDROCARBON SOLVENT BUT SOLUBLE IN LOWER ALKANOLS CONTAINING FROM ONE TO ABOUT FIVE CARBON ATOMS.
Claim 4
Dependent Claim
49 words
CELLULOSIC FIBERS HAVING AN ADHERENT SURFACE LAYER OF RESINOUS MATERIAL INCLUDING AT LEAST ONE FRACTION OF THE PLANT GRINDELIA SELECTED FROM THE GROUP CONSISTING OF FRACTIONS SOLUBLE IN HYDROCARBON SOLVENT AND FRACTIONS INSOLUBLE IN HYDROCARBON SOLVENT BUT SOLUBLE IN LOWER ALKANOLS CONTAINING FROM ONE TO ABOUT FIVE CARBON ATOMS.
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) | 1968-05-31 | 1968-11-30 | 1969-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-31 | 1972-11-30 | 1973-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-31 | 1976-11-30 | 1977-06-01 | $7700.00 | Window Closed / Lapsed |