Patent US3220993A successfully refreshed from Google Patents.
US3220993A
Expired / Lapsed
US
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Halogenated dehydropolycyclopentadiene and its preparation
Assignee: ExxonMobil Oil Corp
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Filing: 1962-09-27
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Granted: 1965-11-30
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Expires: 1982-09-27
Abstract
No abstract record available.
Inventors
- 👤 Paul E Blatz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:17
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/18; C08F8/20; C08F8/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
32 words
A SOLID HALOGENTAED DEHYDROPOLYCYCLOPENTADIENE CONSISTING SUBSTNAITALLY OF A LINEAR SERIES OF FIVE-MEMBERED RINGS AND CONTAINING FROM ABOUT ONE TO ABOUT THREE ATOMS OF A HALOGEN PER SIX FIVE-MEMBERED RINGS IN SAID POLYMER.
Claim 2
Dependent Claim
32 words
A SOLID HALOGENTAED DEHYDROPOLYCYCLOPENTADIENE CONSISTING SUBSTNAITALLY OF A LINEAR SERIES OF FIVE-MEMBERED RINGS AND CONTAINING FROM ABOUT ONE TO ABOUT THREE ATOMS OF A HALOGEN PER SIX FIVE-MEMBERED RINGS IN SAID POLYMER.
Claim 3
Independent Claim
89 words
A METHOD FOR PREPARATION OF A SOLID HALOGENATED DEHYDROPLYCYCLOPENTADIENE WHICH COMPRISES CONTRACTING A SOLUTION OF A SOLID POLYMER OF CYCLOPENTADIENE WITH A HALOGEN TO INITIALLY PRODUCE A HALOGENATED POLYCYCLOPENTADIENE CONTAINING SUBSTANTIALLY MORE THAN ONE ATOM OF HALOGEN PER TWO FIVE-MEMBERED RINGS IN THE POLYMER AND HEATING SAID HALOGENATED POLYCYCLOPENTADIENE AT FROM ABOUT 40 TO ABOUT 100*C. FOR AT LEAST ABOUT ONE HALF HOUR TO DEHALOGENATE SAID HALOGENATED POLYCYCLOPENTADIENE TO A SOLID POLYMER CONTAINING FROM ABOUT ONE TO ABOUT THREE ATOMS OF HALOGEN PER SIX FIVE-MEMBERED RINGS IN SAID POLYMER.
Claim 4
Independent Claim
89 words
A METHOD FOR PREPARATION OF A SOLID HALOGENATED DEHYDROPLYCYCLOPENTADIENE WHICH COMPRISES CONTRACTING A SOLUTION OF A SOLID POLYMER OF CYCLOPENTADIENE WITH A HALOGEN TO INITIALLY PRODUCE A HALOGENATED POLYCYCLOPENTADIENE CONTAINING SUBSTANTIALLY MORE THAN ONE ATOM OF HALOGEN PER TWO FIVE-MEMBERED RINGS IN THE POLYMER AND HEATING SAID HALOGENATED POLYCYCLOPENTADIENE AT FROM ABOUT 40 TO ABOUT 100*C. FOR AT LEAST ABOUT ONE HALF HOUR TO DEHALOGENATE SAID HALOGENATED POLYCYCLOPENTADIENE TO A SOLID POLYMER CONTAINING FROM ABOUT ONE TO ABOUT THREE ATOMS OF HALOGEN PER SIX FIVE-MEMBERED RINGS IN SAID POLYMER.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |