US3089857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage stable expandable polymeric composition containing expandable polymeric particles and two different blowing agents and method of making same
Assignee: Beazer East Inc
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Filing: 1960-04-12
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Granted: 1963-05-14
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Expires: 1980-04-12
Abstract
No abstract record available.
Inventors
- 👤 Carl H Pottenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:42
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/34; B29C44/36; B29C44/46; B29C44/461; B29C44/3442; C; C08; C08J; C08J9/00; C08J9/04; C08J9/12; C08J9/14; C08J9/141; C08J9/22; Y; Y10; Y10S; Y10S264/00; Y10S264/05; Y10S521/00; Y10S521/912
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A STORAGE STABLE EXPANDABLE POLYMERIC COMPOSITION COMPRISING A MIXTURE OF FIRST AND SECOND PORTIONS OF POLYMERIC PARTICLES, SAID FIRST PORTION OF POLYMERIC PARTICLES HAVING INCORPORATED THEREIN A NORMALLY LIQUID ALIPHATIC HYDROCARBON BOILING IN THE RANGE OF FROM 20*C. TO 100* C. AND A CARBON DIOXIDE LIBERATING AGENT SELECTED FROM THE GROUP CONSISTING OF CARBONATES AND BICARBONATES OF THE ALKALI METALS AND ALKALINE EARTH METALS, SAID SECOND PORTION OF POLYMERIC PARTICLES HAVING INCORPORATED THEREIN A NORMALLY LIQUID ALIPHATIC HYDROCARBON BOILING IN THE RANGE OF FROM 20*C. TO 100*C. AND AN ACID SLECTED FROM THE GROUP CONSISTING OF BORIC ACID AND SOLID ORGANIC ACIDS HAVING AT LEAST 10 MILLI-EQUIVALENTS OF ACIDIC HYDROGEN PER GRAM, THE TOTAL AMOUNT OF SAID HYDROCARBON CONTAINED IN SAID COMPOSITION BEING BETWEEN 2% AND 15% BY WEIGHT OF THE TOTAL COMPOSITION AND THE AMOUNT OF CARBON DIOXIDE LIBERATING AGENT IN SAID FIRST PORTION OF POLYMERIC PARTICLES AND THE AMOUNT OF ACID IN SAID SECOND PORTION OF POLYMERIC PARTICLES BEING SUCH THAT, UPON COMPLETE REACTION OF SAID CARBON DIOXIDE LIBERATING AGENT AND ACID, THERE WILL BE FORMED WATER AND CARBON DIOXIDE IN AN AMOUNT BETWEEN 0.2% AND 6% BY WEIGHT OF SAID POLYMERIC COMPOSITION.
Claim 2
Dependent Claim
195 words
A STORAGE STABLE EXPANDABLE POLYMERIC COMPOSITION COMPRISING A MIXTURE OF FIRST AND SECOND PORTIONS OF POLYMERIC PARTICLES, SAID FIRST PORTION OF POLYMERIC PARTICLES HAVING INCORPORATED THEREIN A NORMALLY LIQUID ALIPHATIC HYDROCARBON BOILING IN THE RANGE OF FROM 20*C. TO 100* C. AND A CARBON DIOXIDE LIBERATING AGENT SELECTED FROM THE GROUP CONSISTING OF CARBONATES AND BICARBONATES OF THE ALKALI METALS AND ALKALINE EARTH METALS, SAID SECOND PORTION OF POLYMERIC PARTICLES HAVING INCORPORATED THEREIN A NORMALLY LIQUID ALIPHATIC HYDROCARBON BOILING IN THE RANGE OF FROM 20*C. TO 100*C. AND AN ACID SLECTED FROM THE GROUP CONSISTING OF BORIC ACID AND SOLID ORGANIC ACIDS HAVING AT LEAST 10 MILLI-EQUIVALENTS OF ACIDIC HYDROGEN PER GRAM, THE TOTAL AMOUNT OF SAID HYDROCARBON CONTAINED IN SAID COMPOSITION BEING BETWEEN 2% AND 15% BY WEIGHT OF THE TOTAL COMPOSITION AND THE AMOUNT OF CARBON DIOXIDE LIBERATING AGENT IN SAID FIRST PORTION OF POLYMERIC PARTICLES AND THE AMOUNT OF ACID IN SAID SECOND PORTION OF POLYMERIC PARTICLES BEING SUCH THAT, UPON COMPLETE REACTION OF SAID CARBON DIOXIDE LIBERATING AGENT AND ACID, THERE WILL BE FORMED WATER AND CARBON DIOXIDE IN AN AMOUNT BETWEEN 0.2% AND 6% BY WEIGHT OF SAID POLYMERIC COMPOSITION.
References Cited (Backward Citations)
US2941964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-13 | 1966-11-12 | 1967-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-13 | 1970-11-12 | 1971-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-13 | 1974-11-12 | 1975-05-14 | $7700.00 | Window Closed / Lapsed |