US2623890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization process
Assignee: —
•
Filing: —
•
Granted: 1952-12-30
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Expires: 1969-12-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:22
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/02; C08F242/00; C08C; C08C19/00; C08C19/02; C08F10/00; C08F210/04; C08F210/06; C08F212/00; C08F212/02; C08F212/04; C08F212/06; C08F212/08; C08L; C08L91/00; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
IN THE METHOD OF PRODUCING SYNTHETIC DRYING OILS FROM OLEFINIC HYDROCARBONS AND UNSATURATED GLYCERIDES, THE IMPROVEMENT WHICH CONSISTS OF INTERPOLYMERIZING A MEMBER OF THE CLASS CONSISTING OF ACYCLIC MONO-OLEFINS AND ACYCLIC MONO-OLEFIN POLYMERS THEREOF, A DIOLEFIN, AND AN UNSATURATED GLYCERIDE IN THE PRESENCE OF A FRIEDELCRAFTS POLYMERIZATION CATALYST UNDER POLYMERIZATION CONDITIONS AT A TEMPERATURE OF ABOTU 0* C. TO ABOUT 160* C., WHEREIN THE POLYMERIZABLE MATERIAL COMPRISES ABOUT 25 TO ABOUT 50 WEIGHT PER CENT OF SAID DIOLEFIN, ABOUT 15 TO ABOUT 25 WEIGHT PER CENT OF SAID UNSATURATED GLYCERIDE, AND THE BALANCE OF THE POLYMERIZABLE MATERIAL BEING ESSENTIALLY A MEMBER OF SAID CLASS CONSISTING OF ACYCLIC MONO-OLEFINS AND ACYCLIC MONO-OLEFIN POLYMERS THEREOF.
Claim 2
Dependent Claim
113 words
IN THE METHOD OF PRODUCING SYNTHETIC DRYING OILS FROM OLEFINIC HYDROCARBONS AND UNSATURATED GLYCERIDES, THE IMPROVEMENT WHICH CONSISTS OF INTERPOLYMERIZING A MEMBER OF THE CLASS CONSISTING OF ACYCLIC MONO-OLEFINS AND ACYCLIC MONO-OLEFIN POLYMERS THEREOF, A DIOLEFIN, AND AN UNSATURATED GLYCERIDE IN THE PRESENCE OF A FRIEDELCRAFTS POLYMERIZATION CATALYST UNDER POLYMERIZATION CONDITIONS AT A TEMPERATURE OF ABOTU 0* C. TO ABOUT 160* C., WHEREIN THE POLYMERIZABLE MATERIAL COMPRISES ABOUT 25 TO ABOUT 50 WEIGHT PER CENT OF SAID DIOLEFIN, ABOUT 15 TO ABOUT 25 WEIGHT PER CENT OF SAID UNSATURATED GLYCERIDE, AND THE BALANCE OF THE POLYMERIZABLE MATERIAL BEING ESSENTIALLY A MEMBER OF SAID CLASS CONSISTING OF ACYCLIC MONO-OLEFINS AND ACYCLIC MONO-OLEFIN POLYMERS THEREOF.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |