US3115384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making elastic polymethane thread
Assignee: Globe Manufacturing Co
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Filing: 1962-03-26
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Granted: 1963-12-24
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Expires: 1982-03-26
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Cacella
- 👤 William R Killen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:48
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7614; C08G18/7621; C08G18/08; C08G18/10; D; D01; D01F; D01F6/00; D01F6/58; D01F6/70; Y; Y10; Y10S; Y10S264/00; Y10S264/77; Y10T; Y10T408/00; Y10T408/94; Y10T408/95; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A METHOD OF MAKING AN ELASTIC THREAD COMPRISING THE STEPS OF PROVIDING AN ANHYDROUS LIQUID POLYURETHANE PREPOLYMER WHICH IS A REACTION PRODUCT OF A POLYMER HAVING TERMINAL HYDROXYL GROUPS SELECTED FROM THE GROUP CONSISTING OF POLYESTERS AND POLYETHERS WITH AN EXCESS OF AN AROMATIC DIISOCYANATE, SAID DIISOCYANATE SERVING AS A SETTING AGENT, EXTRUDING SAID PREPOLYMER IN THE FORM OF A FILAMENT INTO A SETTING BATH OF 50 TO 97% OF AN ALIPHATIC AMINE HAVING TWO PRIMARY AMINE GROUPS AND 3 TO 50% OF A HYDROXYL CONTAINING SOLVENT THEREFOR TO EFFECT A SETTING OF THE EXTERNAL SURFACE ONLY OF THE EXTRUDED MATERIAL TO A SOLID STATE WHILE THE INTERIOR OF THE FILAMENT REMAINS FLUID AND THEREAFTER SETTING THE INTERIOR OF THE FILAMENT TO A SOLID, NONPOROUS STATE UNDER ANHYDROUS CONDITINS AT A TEMPERATURE BETWEEN 37*C. AND THE MELTING POINT OF THE POLYURETHANE.
Claim 2
Independent Claim
141 words
A METHOD OF MAKING AN ELASTIC THREAD COMPRISING THE STEPS OF PROVIDING AN ANHYDROUS LIQUID POLYURETHANE PREPOLYMER WHICH IS A REACTION PRODUCT OF A POLYMER HAVING TERMINAL HYDROXYL GROUPS SELECTED FROM THE GROUP CONSISTING OF POLYESTERS AND POLYETHERS WITH AN EXCESS OF AN AROMATIC DIISOCYANATE, SAID DIISOCYANATE SERVING AS A SETTING AGENT, EXTRUDING SAID PREPOLYMER IN THE FORM OF A FILAMENT INTO A SETTING BATH OF 50 TO 97% OF AN ALIPHATIC AMINE HAVING TWO PRIMARY AMINE GROUPS AND 3 TO 50% OF A HYDROXYL CONTAINING SOLVENT THEREFOR TO EFFECT A SETTING OF THE EXTERNAL SURFACE ONLY OF THE EXTRUDED MATERIAL TO A SOLID STATE WHILE THE INTERIOR OF THE FILAMENT REMAINS FLUID AND THEREAFTER SETTING THE INTERIOR OF THE FILAMENT TO A SOLID, NONPOROUS STATE UNDER ANHYDROUS CONDITINS AT A TEMPERATURE BETWEEN 37*C. AND THE MELTING POINT OF THE POLYURETHANE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |