Patent US2852497A successfully refreshed from Google Patents.
US2852497A
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Unsaturated sulfonamides of chlorosulfonated olefin polymers
Assignee: EIDP Inc
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Filing: 1956-07-24
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Granted: 1958-09-16
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Expires: 1976-07-24
Abstract
No abstract record available.
Inventors
- 👤 Thompson Grant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/06; C08F; C08F8/00; C08F8/30; C08F8/32; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A SULFUR CURABLE CHLORINATED SATURATED POLYMER OF AT LEAST ONE TERMINALLY UNSATURATED OLEFIN SUBSTITUTED BY THE GROUPING -SO2NR1R2 IN WHICH R1 IS TAKEN FROM THE GROUP CONSISTING OF HYDROGEN AND AN ALKYL RADICAL OF FROM 1 TO 18 CARBON ATOMS, R2 IS AN ALKYL RADICAL OF FROM 3 TO 8 CARBON ATOMS, R1 AND R2 IS AN ALKYL RADICAL HAVING MORE THAN 22 CARBON ATOMS, THE DOUBLE BONDS BEING SEPARATED FROM NITROGEN BY AT LEAST ONE -CH2- GROUP, THE ORIGINAL HYDROCARBON POLYMERS BEING NORMALLY SOLID POLYOLEFINS OF A MOLECULAR WEIGHT GREATTHER THAN 10,000, THE NITROGEN CONTENT BEING WITHIN THE RANGE OF 0.2 TO 15% BY WEIGHT OF THE SUBSTITUTED POLYMER.
Claim 2
Dependent Claim
110 words
A SULFUR CURABLE CHLORINATED SATURATED POLYMER OF AT LEAST ONE TERMINALLY UNSATURATED OLEFIN SUBSTITUTED BY THE GROUPING -SO2NR1R2 IN WHICH R1 IS TAKEN FROM THE GROUP CONSISTING OF HYDROGEN AND AN ALKYL RADICAL OF FROM 1 TO 18 CARBON ATOMS, R2 IS AN ALKYL RADICAL OF FROM 3 TO 8 CARBON ATOMS, R1 AND R2 IS AN ALKYL RADICAL HAVING MORE THAN 22 CARBON ATOMS, THE DOUBLE BONDS BEING SEPARATED FROM NITROGEN BY AT LEAST ONE -CH2- GROUP, THE ORIGINAL HYDROCARBON POLYMERS BEING NORMALLY SOLID POLYOLEFINS OF A MOLECULAR WEIGHT GREATTHER THAN 10,000, THE NITROGEN CONTENT BEING WITHIN THE RANGE OF 0.2 TO 15% BY WEIGHT OF THE SUBSTITUTED 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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |