Patent US3841833A successfully refreshed from Google Patents.
US3841833A
Expired / Lapsed
US
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Recoverable warp sizing
Assignee: General Mills Chemicals Inc
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Filing: 1972-08-24
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Granted: 1974-10-15
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Expires: 1992-08-24
Abstract
Abstract A polyamide warp sizing material soluble in selected organic solvents and ammoniacal aqueous media. The sizing material can be applied to the warp from an ammoniacal aqueous media and removed with an organic solvent.
Inventors
- 👤 W Minkema
- 👤 P Whyzmuzis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:06
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/59
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
123 words
A PROCESS FOR SIZING AND DESIZING WARP COMPRISING A. DEPOSITING FROM AN AQUEOUS SIZING SOLUTION CONSISTING ESSENTIALLY OF ABOUT 5 TO 20 PERCENT AMIDIFICATION PRODUCT BY WEIGHT AND AMMONIUM HYDROXIDE EQUIVALENT TO AOUT 90 TO 110 PERCENT OF THE ACID VALUE OF THE AMIDIFICATION PRODUCTS, SAID AMIDIFICATION PRODUCT CONSISTING ESSENTIALLY OF: W. AN ADDUCT OF ROSIN ACID AND AN UNSATURATED DICARBOXYLIC ACID OR ANHYDRIDE SELECTED FROM MALEIC ACID, MALEIC ANHYDRIDE AND FUMARIC ACID WHEREIN THE UNSATURATED DICARBOXYLIC ACID IS PRESENT IN AMOUNTS OF ABOUT 100 TO 200 EQUIVALENT PERCENT TO 100 EQUIVALENT PERCENT ROSIN ACID, X. POLYMERIC FAT ACID RESULTING FROM THE POLYMERIZATION OF UNSATURATED MONOCARBOXYLIC ACID HAVING 16 TO 18 CARBON AOMS, Y. A COACID SELECTED FROM PICARBOXYLIC ACIDS HAVING THE FORMULA
Claim 2
Dependent Claim
123 words
A PROCESS FOR SIZING AND DESIZING WARP COMPRISING A. DEPOSITING FROM AN AQUEOUS SIZING SOLUTION CONSISTING ESSENTIALLY OF ABOUT 5 TO 20 PERCENT AMIDIFICATION PRODUCT BY WEIGHT AND AMMONIUM HYDROXIDE EQUIVALENT TO AOUT 90 TO 110 PERCENT OF THE ACID VALUE OF THE AMIDIFICATION PRODUCTS, SAID AMIDIFICATION PRODUCT CONSISTING ESSENTIALLY OF: W. AN ADDUCT OF ROSIN ACID AND AN UNSATURATED DICARBOXYLIC ACID OR ANHYDRIDE SELECTED FROM MALEIC ACID, MALEIC ANHYDRIDE AND FUMARIC ACID WHEREIN THE UNSATURATED DICARBOXYLIC ACID IS PRESENT IN AMOUNTS OF ABOUT 100 TO 200 EQUIVALENT PERCENT TO 100 EQUIVALENT PERCENT ROSIN ACID, X. POLYMERIC FAT ACID RESULTING FROM THE POLYMERIZATION OF UNSATURATED MONOCARBOXYLIC ACID HAVING 16 TO 18 CARBON AOMS, Y. A COACID SELECTED FROM PICARBOXYLIC ACIDS HAVING THE FORMULA
Claim 3
Dependent Claim
13 words
The process of claim 1 wherein said amidification product has the following composition:
Claim 4
Dependent Claim
11 words
The process of claim 2 wherein the polyhexamethylene polyamine is bis(hexamethylene)triamine.
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) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |