US3284420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified ethylene-propadiene polymers
Assignee: EIDP Inc
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Filing: 1965-05-24
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Granted: 1966-11-08
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Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 Tocker Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:37
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/14; C08F; C08F36/00; C08F8/00; C08F8/34; D; D01; D01F; D01F6/00; D01F6/28; D01F6/30; C08J2323/00; C08J2323/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A MODIFIED COPOLYMER OF IMPROVD ADHERAVILITY TO ITSELF AND OTHER MATERIALS OF 65-99 MOLE PERCENT OF ETHYLENE AND 1-35 MMOLE PERCENT OF PROPADIENE, SAID MODIFICATION BEING BY REACTION WITH AN OXY ACID OF SULFUR SELECTED FROM THE GROUP CONSISTING OF SULFURIC ACID, SULFUROUS ACID, CHLOSULFONIC ACID, THIOSULFURIC ACID, PYROSULFURIC ACID PARA-TOLUENE SULFONIC ACID, TO PROVIDE 1-35 MOLE PERCENT OF A RANDOM SELECTION OF RECURRING UNITS SELECTED FROM THE GROUP CONSISITNG OF -C(-Z)(-CH3)-CH2-, -CH(-CH2-Z)-CH2-, -CH(-CH(-Z)-CH3)- AND -CH(-CH2-CH2-Z)WHERE Z IS THE SULFATE RADICAL.
Claim 2
Dependent Claim
81 words
A MODIFIED COPOLYMER OF IMPROVD ADHERAVILITY TO ITSELF AND OTHER MATERIALS OF 65-99 MOLE PERCENT OF ETHYLENE AND 1-35 MMOLE PERCENT OF PROPADIENE, SAID MODIFICATION BEING BY REACTION WITH AN OXY ACID OF SULFUR SELECTED FROM THE GROUP CONSISTING OF SULFURIC ACID, SULFUROUS ACID, CHLOSULFONIC ACID, THIOSULFURIC ACID, PYROSULFURIC ACID PARA-TOLUENE SULFONIC ACID, TO PROVIDE 1-35 MOLE PERCENT OF A RANDOM SELECTION OF RECURRING UNITS SELECTED FROM THE GROUP CONSISITNG OF -C(-Z)(-CH3)-CH2-, -CH(-CH2-Z)-CH2-, -CH(-CH(-Z)-CH3)- AND -CH(-CH2-CH2-Z)WHERE Z IS THE SULFATE RADICAL.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |