US2654719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticizers and plastic compositions
Assignee: Elastomer Chemical Corp
•
Filing: 1947-05-22
•
Granted: 1953-10-06
•
Expires: 1967-05-22
Abstract
No abstract record available.
Inventors
- 👤 Edmund H Schwencke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:05
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/01; C08K5/04; C08K5/09; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
A PLASTICIZER FOR POLYVINYL CHLORIDE AND COPOLYMERS OF VINYL CHLORIDE AND VINYL ACETATE COMPRISING A HYDROCARBON OIL WHICH IS AT LEAST 90% AROMATIC AND CHARACTERIZED BY THE PREDOMINANCE OF THREE AND FOUR RINGED MOLECULES CONTAINING TWO TO FOUR SHORT ALKYL SIDE CHAINS, SAID OIL HAVING A SPECIFIC GRAVITY GREATER THAN ONE, A MIXED ANILINE POINT CRITICAL SOLUTION TEMPERATURE BETWEEN 65-75* F., A BOILING RANGE BETWEEN APPROXIMATELY 580-760* F., SAID HYDROCARBON OIL HAVING DISSOLVED THEREIN A WATER INSOLUBLE METAL STEARATE IN QUANTITY NOT GREATER THAN 2% OF THE WEIGHT OF THE HYDROCARBON OIL AND HAVING INCORPORATED THEREIN ACETYLENE IN QUANTITY NOT GREATER THAN.
Claim 2
Dependent Claim
102 words
A PLASTICIZER FOR POLYVINYL CHLORIDE AND COPOLYMERS OF VINYL CHLORIDE AND VINYL ACETATE COMPRISING A HYDROCARBON OIL WHICH IS AT LEAST 90% AROMATIC AND CHARACTERIZED BY THE PREDOMINANCE OF THREE AND FOUR RINGED MOLECULES CONTAINING TWO TO FOUR SHORT ALKYL SIDE CHAINS, SAID OIL HAVING A SPECIFIC GRAVITY GREATER THAN ONE, A MIXED ANILINE POINT CRITICAL SOLUTION TEMPERATURE BETWEEN 65-75* F., A BOILING RANGE BETWEEN APPROXIMATELY 580-760* F., SAID HYDROCARBON OIL HAVING DISSOLVED THEREIN A WATER INSOLUBLE METAL STEARATE IN QUANTITY NOT GREATER THAN 2% OF THE WEIGHT OF THE HYDROCARBON OIL AND HAVING INCORPORATED THEREIN ACETYLENE IN QUANTITY NOT GREATER THAN.
References Cited (Backward Citations)
US1764837A
Cited
US2115524A
Cited
US2214326A
Cited
US2266544A
Cited
US2419929A
Cited
US2283602A
Cited
US2325963A
Cited
US2307091A
Cited
US2403167A
Cited
US2413259A
Cited
US2449928A
Cited
US2431078A
Cited
US2515382A
Cited
US2497045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |