Patent US3016576A successfully refreshed from Google Patents.
US3016576A
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Process for preparing expanded cellular materials
Assignee: EIDP Inc
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Filing: 1957-12-31
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Granted: 1962-01-16
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Expires: 1977-12-31
Abstract
No abstract record available.
Inventors
- 👤 Richard M Dowaing
- 👤 Richard E Mortberg
- 👤 William J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:29
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/04; C08J9/06; Y; Y10; Y10S; Y10S264/00; Y10S264/60; Y10S264/65
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS FOR PREPARING EXPANDED CELLULAR RESINOUS MATERIALS WHICH COMPRISES FORMING A LIQUID PLASTISOL WITH A RESIN, A SUITABLE PLASTICIZER, AND A CHEMICAL BLOWING AGENT, HEATING A CONTINUOUSLY FLOWING THIN FILM OF SAID FLUID PLASTISOL TO A TEMPERATURE IM THE THRESHOLD TEMPERATURE RANGE OF SUBSTANTIAL THERMAL DECOMPOSITION OF THE BLOWING AGENT, IMMEDIATELY DISCHARGING SAID HEATED PLASTISOL INTO A MOLD WHEREIN DECOMPOSITION OF THE CHEMICAL BLOWING AGENT OCCURS TO RELEASE A GAS AND FOAM THE PLASTISOL, AND THEREAFTER HEATING THE FOAMED PLATISOL FURTHER TO FLUX THE RESIN WITH THE PLASTICIZER.
Claim 2
Dependent Claim
89 words
A PROCESS FOR PREPARING EXPANDED CELLULAR RESINOUS MATERIALS WHICH COMPRISES FORMING A LIQUID PLASTISOL WITH A RESIN, A SUITABLE PLASTICIZER, AND A CHEMICAL BLOWING AGENT, HEATING A CONTINUOUSLY FLOWING THIN FILM OF SAID FLUID PLASTISOL TO A TEMPERATURE IM THE THRESHOLD TEMPERATURE RANGE OF SUBSTANTIAL THERMAL DECOMPOSITION OF THE BLOWING AGENT, IMMEDIATELY DISCHARGING SAID HEATED PLASTISOL INTO A MOLD WHEREIN DECOMPOSITION OF THE CHEMICAL BLOWING AGENT OCCURS TO RELEASE A GAS AND FOAM THE PLASTISOL, AND THEREAFTER HEATING THE FOAMED PLATISOL FURTHER TO FLUX THE RESIN WITH THE PLASTICIZER.
References Cited (Backward Citations)
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US2663908A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |