US3211685A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of polyvinyl alcohol having improved dyeability and composition therefor including polyvinyl alcohol basic nitrogen-containing derivatives
Assignee: Kurashiki Rayon Co Ltd
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Filing: 1960-03-18
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Granted: 1965-10-12
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Expires: 1980-03-18
Abstract
No abstract record available.
Inventors
- 👤 Fukushima Osamu
- 👤 Matsubayashi Kanji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:22
CPC Classifications
C; C08; C08L; C08L29/00; C08L29/02; C08L29/04; C08F; C08F16/00; C08F16/02; C08F16/04; C08F16/06; C08F8/00; C08F8/28; C08F8/30; C08L2666/00; C08L2666/02; C08L2666/04; C08L29/14; Y; Y10; Y10S; Y10S8/00; Y10S8/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN THE MANUFACTURE OF POLYVINYL ALCOHOL FIBERS OF IMPROVED DYEABILITY, THE STEPS WHICH COMPRISE PREPARING AN AQUEOUS SPINNING FLUID COMPRISING A MIXTURE OF AN AQUEOUS SOLUTION OF POLYVINYL ALCOHOL AND A WATERINSOLUBLE ACETALIZED POLYVINYL ALCOHOL AND A WATERINSOLUBLE ACETALIZED POLYVINYL ALCOHOL IN FINELY-DIVIDED FORM HAVING A PARTICLE SIZE OF AT MOST 30U, SAID ACETALIZED POLYVINYL ALCOHOL BEING ACETALIZED WITH AT LEAST ONE ALDEHYDE CONTAINING BASIC NITROGEN AND AT LEAST ONE ALDEHYDE FREE FROM BASIC NITROGEN, WHEREBY SAID ACETALIZED POLYVINYL ALCOHOL CONTAINS BASIC NITROGEN AND SPINNING SAID FLUID TO FORM FIBERS THEREFROM, SAID ALDEHYDE CONTAINING BASIC NITROGEN BEING SELECTED FROM THE GROUP CONSISTING OF AMINOACETALDEHYDE, METHYLAMINOACETALDEHYDE, ETHYLAMINOACETALDEHYDE, BUTLAMINOACETALADEHYDE, CYCLOHEXYLAMINOACETALDEHYDE, NONYLAMINOACETALDEHYDE, DODECYLAMINOACETALDEHYDE, OCTADECYLAMINOACETALDEHYDE, DIMETHYLAMINOACETALDEHYDE, DIETHYLAMINOACETALDEHYDE, DIBUTYLAMINOACETALDEHYDE, DIMONYLAMINOACETALDEHYDE, B/AMINOPROPIONALDEHYDE, B-METHYLAMINOPROPIONALDEHYDE, B-ETHYLAMINOPROPIONALDEHYDE, B-CYCLOHEXYLAMINOPROPIONALDEHYDE, B-DODECYLAMINOPROPIONALDEHYDE, B-AMINOBUTYRALDEHYDE, B-METHYLAMINOBUTYRALDEHYDE, B-THYLAMINOBUTYRALDEHYDE, B-BUTYLAMINOBUTYRALDEHYDE, B-CYCLOHEXYLAMINOBUTYRALDEHYDE, B-NONYLAMINOBUTYRALDEHYDE, B-(2ETHYLHEXYL)-AMINOBUTYRALDEHYDE, B-DODECYLAMINOBUTYRALDEHYDE, B-OCTADECYLAMINOBUTYRALDEHYDE, B-DIMETHYLAMINOBUTYRALDEHYDE, B-DIETHYLAMINOBUTYRALDEHYDE, B-DIBUTYLAMINOBUTYRALDEHYDE, B-METHYL-B-CYCLOHEXYLAMINOBUTYRALDEHYDE, B-DIMONYLAMINOBUTYRALDEHYDE, B-DIMETHYLAMINOPIVALDEHYDE, B-DIETHYLAMINOPIVALDEHYDE, B-DIBUTYLAMINOPIVALDEHYDE, B-DIMONYLAMINOPIVALDEHYDE, B-CYCLOHEXYLAMINOPIVALDEHYDE, B-NONYLAMINOPIVALDEHYDE, B-DODECYLAMINOPIVALDEHYDE, B-OCTADECYLAMINOPIVALDEHYDE, A-, B-, AND Y-PYRIDINEALDEHYDE, P-AMINOBENZALDEHYDE, P-DIMETHYLAMINOBENZALDEHYDE, THE ACETALS THEREOF, AND THE QUATERNARY DERIVATIVES THEREOF PRODUCED BY THE ACTION OF ALKYLATING AGENTS SELECTED FROM THE GROUP CONSISTING OF METHYLIODIDE, ETHYLBROMIDE, DODECYLBROMIDE, BENZYLCHLORIDE, ALLYL CHLORIDE, DIMETHYLSUFATE, METHYL-P-TOLUENESULFONATE, ETHYLENEOXIDE, AND THE ACETALS OF SAID QUATERNARY DERIVATIVES.
Claim 2
Dependent Claim
185 words
IN THE MANUFACTURE OF POLYVINYL ALCOHOL FIBERS OF IMPROVED DYEABILITY, THE STEPS WHICH COMPRISE PREPARING AN AQUEOUS SPINNING FLUID COMPRISING A MIXTURE OF AN AQUEOUS SOLUTION OF POLYVINYL ALCOHOL AND A WATERINSOLUBLE ACETALIZED POLYVINYL ALCOHOL AND A WATERINSOLUBLE ACETALIZED POLYVINYL ALCOHOL IN FINELY-DIVIDED FORM HAVING A PARTICLE SIZE OF AT MOST 30U, SAID ACETALIZED POLYVINYL ALCOHOL BEING ACETALIZED WITH AT LEAST ONE ALDEHYDE CONTAINING BASIC NITROGEN AND AT LEAST ONE ALDEHYDE FREE FROM BASIC NITROGEN, WHEREBY SAID ACETALIZED POLYVINYL ALCOHOL CONTAINS BASIC NITROGEN AND SPINNING SAID FLUID TO FORM FIBERS THEREFROM, SAID ALDEHYDE CONTAINING BASIC NITROGEN BEING SELECTED FROM THE GROUP CONSISTING OF AMINOACETALDEHYDE, METHYLAMINOACETALDEHYDE, ETHYLAMINOACETALDEHYDE, BUTLAMINOACETALADEHYDE, CYCLOHEXYLAMINOACETALDEHYDE, NONYLAMINOACETALDEHYDE, DODECYLAMINOACETALDEHYDE, OCTADECYLAMINOACETALDEHYDE, DIMETHYLAMINOACETALDEHYDE, DIETHYLAMINOACETALDEHYDE, DIBUTYLAMINOACETALDEHYDE, DIMONYLAMINOACETALDEHYDE, B/AMINOPROPIONALDEHYDE, B-METHYLAMINOPROPIONALDEHYDE, B-ETHYLAMINOPROPIONALDEHYDE, B-CYCLOHEXYLAMINOPROPIONALDEHYDE, B-DODECYLAMINOPROPIONALDEHYDE, B-AMINOBUTYRALDEHYDE, B-METHYLAMINOBUTYRALDEHYDE, B-THYLAMINOBUTYRALDEHYDE, B-BUTYLAMINOBUTYRALDEHYDE, B-CYCLOHEXYLAMINOBUTYRALDEHYDE, B-NONYLAMINOBUTYRALDEHYDE, B-(2ETHYLHEXYL)-AMINOBUTYRALDEHYDE, B-DODECYLAMINOBUTYRALDEHYDE, B-OCTADECYLAMINOBUTYRALDEHYDE, B-DIMETHYLAMINOBUTYRALDEHYDE, B-DIETHYLAMINOBUTYRALDEHYDE, B-DIBUTYLAMINOBUTYRALDEHYDE, B-METHYL-B-CYCLOHEXYLAMINOBUTYRALDEHYDE, B-DIMONYLAMINOBUTYRALDEHYDE, B-DIMETHYLAMINOPIVALDEHYDE, B-DIETHYLAMINOPIVALDEHYDE, B-DIBUTYLAMINOPIVALDEHYDE, B-DIMONYLAMINOPIVALDEHYDE, B-CYCLOHEXYLAMINOPIVALDEHYDE, B-NONYLAMINOPIVALDEHYDE, B-DODECYLAMINOPIVALDEHYDE, B-OCTADECYLAMINOPIVALDEHYDE, A-, B-, AND Y-PYRIDINEALDEHYDE, P-AMINOBENZALDEHYDE, P-DIMETHYLAMINOBENZALDEHYDE, THE ACETALS THEREOF, AND THE QUATERNARY DERIVATIVES THEREOF PRODUCED BY THE ACTION OF ALKYLATING AGENTS SELECTED FROM THE GROUP CONSISTING OF METHYLIODIDE, ETHYLBROMIDE, DODECYLBROMIDE, BENZYLCHLORIDE, ALLYL CHLORIDE, DIMETHYLSUFATE, METHYL-P-TOLUENESULFONATE, ETHYLENEOXIDE, AND THE ACETALS OF SAID QUATERNARY DERIVATIVES.
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) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |