US2772444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising a polyhalogenated ethylene polymer and viscose and process of shaping the same
Assignee: EIDP Inc
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Filing: 1954-08-12
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Granted: 1956-12-04
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Expires: 1974-08-12
Abstract
No abstract record available.
Inventors
- 👤 Burrows Lawton Arthur
- 👤 Jordan Walter Edwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:02
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/08; D01F6/12; Y; Y10; Y10S; Y10S128/00; Y10S128/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A PROCESS FOR THE PRODUCTION OF A SHAPED ARTICLE FROM A POLYHALOGENATED ETHYLENE POLYMER WHICH COMPRISES FORMING AN AQUEOUS MIXTURE OF VISCOSE AND AN AQUEOUS STABILIZED DISPERSION OF SAID POLYMER; EXTRUDING SAID MIXTURE INTO A SETTING MEDIUM FOR SAID VISCOSE, FORMING THEREBY A STRUCTURE COMPRISING DISCRETE ARTICLES OF SAID POLYMER AND A CELLULOSIC MATRIX; HEATING THE SAID STRUCTURE AT A TEMPERATURE SUFFICIENTLY HIGH TO DECOMPOSE SAID CELLULOSIC MATERIAL; AND COALESCING THE SAID DISCRETE POLYMER PARTICLES BY HEATING THEM TO EFFECT SINTERING OF THE SAID POLYMER PARTICLES, SAID AQUEOUS MIXTURE CONTAINING ABOUT 10% TO ABOUT 60% OF THE SAID POLYHALOGENATED ETHYLENE POLYMER AND ABOUT 1% TO ABOUT 8% OF CELLULOSE.
Claim 2
Dependent Claim
109 words
A PROCESS FOR THE PRODUCTION OF A SHAPED ARTICLE FROM A POLYHALOGENATED ETHYLENE POLYMER WHICH COMPRISES FORMING AN AQUEOUS MIXTURE OF VISCOSE AND AN AQUEOUS STABILIZED DISPERSION OF SAID POLYMER; EXTRUDING SAID MIXTURE INTO A SETTING MEDIUM FOR SAID VISCOSE, FORMING THEREBY A STRUCTURE COMPRISING DISCRETE ARTICLES OF SAID POLYMER AND A CELLULOSIC MATRIX; HEATING THE SAID STRUCTURE AT A TEMPERATURE SUFFICIENTLY HIGH TO DECOMPOSE SAID CELLULOSIC MATERIAL; AND COALESCING THE SAID DISCRETE POLYMER PARTICLES BY HEATING THEM TO EFFECT SINTERING OF THE SAID POLYMER PARTICLES, SAID AQUEOUS MIXTURE CONTAINING ABOUT 10% TO ABOUT 60% OF THE SAID POLYHALOGENATED ETHYLENE POLYMER AND ABOUT 1% TO ABOUT 8% OF CELLULOSE.
References Cited (Backward Citations)
US2413498A
Cited
US2559750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |