Patent US2809372A successfully refreshed from Google Patents.
US2809372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen halide derivatives of isoolefin-polyolefin polymers mixed with rubbery polymers containing a major proportion of diolefin
Assignee: Goodrich Corp
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Filing: 1953-01-13
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Granted: 1957-10-08
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Expires: 1973-01-13
Abstract
No abstract record available.
Inventors
- 👤 Marvin R Frederick
- 👤 Richard T Morrissey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:50
CPC Classifications
C; C08; C08L; C08L21/00; C08L23/00; C08L23/26; C08L23/28; C08L23/283
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
A VULCANIZABLE COMPOSITION OF MATTER COMPRISING A RUBBER SELECTED FROM THE CLASS CONSISTING OF NATURAL RUBBER AND SYNTHETIC RUBBERS OF A MAJOR PROPORTION OF A CONJUGATED DIOLEFIN, AND A SOLID, RUBBER, PARTIALLY HYDROHALOGENATED INTERPOLYMER OF 90 TO 99 WEIGHT PERCENT ISOBUTYLENE AND 1 TO 10 WEIGHT PERCENT OF AN ALIPHATIC CONJUGATED DIOLEFIN FORMED BY REACTING IN THE PRESENCE OF AN ORGANIC LIQUID AT A TEMPERATURE BELOW ABOUT 25*C. (1) A SOLID PLASTIC RUBBERY INTERPOLMER OF 90 TO 99 WEIGHT PERCENT ISOBUTYLENE AND 1 TO 10 WEIGHT PERCENT OF AN ALIPHATIC CONJUGATED DIOLEFIN, WITH (2) A SUFFICIENT AMOUNT OF A HYDROGEN HALIDE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN FLUORIDE, HYDROGEN CHLORIDE AND HYDROGEN BROMIDE FROM 0.1 WEIGHT PERCENT AT LEAST ONE HALOGEN SELECTED FROM THE CLASS CONSISTING OF FLUORINE, CHLORINE AND BROMINE TO 1.0 WEIGHT PERCENT EQUIVALENT OF FLUORINE IS ESSENTIALLY THE STRUCTURE
Claim 2
Dependent Claim
143 words
A VULCANIZABLE COMPOSITION OF MATTER COMPRISING A RUBBER SELECTED FROM THE CLASS CONSISTING OF NATURAL RUBBER AND SYNTHETIC RUBBERS OF A MAJOR PROPORTION OF A CONJUGATED DIOLEFIN, AND A SOLID, RUBBER, PARTIALLY HYDROHALOGENATED INTERPOLYMER OF 90 TO 99 WEIGHT PERCENT ISOBUTYLENE AND 1 TO 10 WEIGHT PERCENT OF AN ALIPHATIC CONJUGATED DIOLEFIN FORMED BY REACTING IN THE PRESENCE OF AN ORGANIC LIQUID AT A TEMPERATURE BELOW ABOUT 25*C. (1) A SOLID PLASTIC RUBBERY INTERPOLMER OF 90 TO 99 WEIGHT PERCENT ISOBUTYLENE AND 1 TO 10 WEIGHT PERCENT OF AN ALIPHATIC CONJUGATED DIOLEFIN, WITH (2) A SUFFICIENT AMOUNT OF A HYDROGEN HALIDE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN FLUORIDE, HYDROGEN CHLORIDE AND HYDROGEN BROMIDE FROM 0.1 WEIGHT PERCENT AT LEAST ONE HALOGEN SELECTED FROM THE CLASS CONSISTING OF FLUORINE, CHLORINE AND BROMINE TO 1.0 WEIGHT PERCENT EQUIVALENT OF FLUORINE IS ESSENTIALLY THE STRUCTURE
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) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |