Patent US1915671A successfully refreshed from Google Patents.
Patent US3223956A successfully refreshed from Google Patents.
Patent US2654679A successfully refreshed from Google Patents.
US2654679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized reaction products of rubbery polymers with inorganic acidifying compounds
Assignee: Shell Development Co
•
Filing: 1949-04-26
•
Granted: 1953-10-06
•
Expires: 1969-04-26
Abstract
No abstract record available.
Inventors
- 👤 Goppel Johan Michael
- 👤 Rumscheidt Gottfried Ernst
- 👤 Hackmann Johannes Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:52
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/10; D06M13/12; D06M13/127; D01; D01F; D01F6/00; D01F6/02; D01F6/24; D06M13/322; D06M13/35; D06M13/355; D06M13/358; D06M13/402; D06M13/432; D06M15/00; D06M15/693
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A NOVEL STABILIZED COMPOSITION OF MATTER COMPRISING A REACTION PRODUCT OF A RUBBERY POLYMER OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE CONJUGATED DIOLEFINS AND CHLOROPRENE IN THE PRESENCE OF A PEROXIDE ACTIVATING AGENT AND SULFUR DIOXIDE, THESE BEING THE ONLY REACTANTS, WHICH COMPOSITION OF MATTER IS PREPARED BY IMPREGNATING SAID REACTION PRODUCT, WHILE IT IS IN COAGULATED STATE, HAVING A DEFINITE FORM AND SWOLLEN WITH SOLVENT, WITH A SOLUTION OF AT LEAST ONE STABILIZER COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) SATURATED, UNSUBSTITUTED ALIPHATIC MONOAMINES; (2) CARBOCYCLIC AROMATIC AMINES IN WHICH THE AMINO NITROGEN ATOM IS DIRECTLY ATTACHED TO THE ARYL NUCLEUS AND IN WHICH THE AMINO NITROGEN ATOM IS UNSUBSTITUTED WITH OTHER THAN SUCH ARYL GROUPS; (3) HETEROCYCLIC AMINES HAVING ONLY CARBON AND NITROGEN ATOMS IN THE RING; AND (4) SALTS OF SAID AMINES, IN ALL CASES THE AMINES CONTAINING BUT A SINGLE NITROGEN ATOM ATTACHED TO ANY GIVEN CARBON ATOM NOT FORMING A PART OF A RING, AND REMOVING SAID SOLVENT, AND SAID STABILIZED COMPOSITION OF MATTER BEING CHARACTERIZED BY A HIGH RESISTANCE TO DETERIORATION.
Claim 2
Dependent Claim
183 words
A NOVEL STABILIZED COMPOSITION OF MATTER COMPRISING A REACTION PRODUCT OF A RUBBERY POLYMER OF AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE CONJUGATED DIOLEFINS AND CHLOROPRENE IN THE PRESENCE OF A PEROXIDE ACTIVATING AGENT AND SULFUR DIOXIDE, THESE BEING THE ONLY REACTANTS, WHICH COMPOSITION OF MATTER IS PREPARED BY IMPREGNATING SAID REACTION PRODUCT, WHILE IT IS IN COAGULATED STATE, HAVING A DEFINITE FORM AND SWOLLEN WITH SOLVENT, WITH A SOLUTION OF AT LEAST ONE STABILIZER COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) SATURATED, UNSUBSTITUTED ALIPHATIC MONOAMINES; (2) CARBOCYCLIC AROMATIC AMINES IN WHICH THE AMINO NITROGEN ATOM IS DIRECTLY ATTACHED TO THE ARYL NUCLEUS AND IN WHICH THE AMINO NITROGEN ATOM IS UNSUBSTITUTED WITH OTHER THAN SUCH ARYL GROUPS; (3) HETEROCYCLIC AMINES HAVING ONLY CARBON AND NITROGEN ATOMS IN THE RING; AND (4) SALTS OF SAID AMINES, IN ALL CASES THE AMINES CONTAINING BUT A SINGLE NITROGEN ATOM ATTACHED TO ANY GIVEN CARBON ATOM NOT FORMING A PART OF A RING, AND REMOVING SAID SOLVENT, AND SAID STABILIZED COMPOSITION OF MATTER BEING CHARACTERIZED BY A HIGH RESISTANCE TO DETERIORATION.
References Cited (Backward Citations)
US2302362A
Cited
US2379354A
Cited
US2469847A
Cited
US2396556A
Cited
GB575736A
Cited
US2511498A
Cited
US2403960A
Cited
US2439610A
Cited
GB593036A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |