US2880103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions of matter
Assignee: Olin Corp
•
Filing: 1958-02-05
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Granted: 1959-03-31
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Expires: 1978-02-05
Abstract
No abstract record available.
Inventors
- 👤 Soule Eleanore Benner
- 👤 Leo S Burnett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:54
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; C08J9/10; C08J9/104; Y; Y10; Y10S; Y10S521/00; Y10S521/909
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A PROCESS FOR THE PRODUCTION OF CELLULAR COMPOSITIONS FROM SYNTHETIC PLASTIC MATERIALS HAVING A VISCOELASTIC STAGE WHICH COMPRISES INCORPORATING INTO SAID SYNTHETIC PLASTIC MATERIALS FROM 5 TO 20 PERCENT BY WEIGHT OF A BLOWING AGENT COMPRISING HYDRAZINE MONONITRATE AND FROM 1 TO 15 PERCENT BY WEIGHT BASED ON THE HYDRAZINE MONOITRATE OF AN ACTIVATOR SELECTED FROM THE GROUP CONSISTING OF FERROUS SULFATE, FERROUS AMMONIUM SULFATE, AND MOLYBDENUM TRIOXIDE, AND HEATING SAID SYNTHETIC PLASTIC MATERIALS WHILE IN THE VISCO-ELASTIC STATE TO A TEMPERATURE SUFFICIENT TO DECOMPOSE THE BLOWING AGENT AND TO BLOW SAID SYNTHETIC PLASTIC MATERIAL TO PRODUCE A CELLULAR COMPOSITION.
Claim 2
Dependent Claim
100 words
A PROCESS FOR THE PRODUCTION OF CELLULAR COMPOSITIONS FROM SYNTHETIC PLASTIC MATERIALS HAVING A VISCOELASTIC STAGE WHICH COMPRISES INCORPORATING INTO SAID SYNTHETIC PLASTIC MATERIALS FROM 5 TO 20 PERCENT BY WEIGHT OF A BLOWING AGENT COMPRISING HYDRAZINE MONONITRATE AND FROM 1 TO 15 PERCENT BY WEIGHT BASED ON THE HYDRAZINE MONOITRATE OF AN ACTIVATOR SELECTED FROM THE GROUP CONSISTING OF FERROUS SULFATE, FERROUS AMMONIUM SULFATE, AND MOLYBDENUM TRIOXIDE, AND HEATING SAID SYNTHETIC PLASTIC MATERIALS WHILE IN THE VISCO-ELASTIC STATE TO A TEMPERATURE SUFFICIENT TO DECOMPOSE THE BLOWING AGENT AND TO BLOW SAID SYNTHETIC PLASTIC MATERIAL TO PRODUCE A CELLULAR COMPOSITION.
References Cited (Backward Citations)
US2621161A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |