Patent US3220964A successfully refreshed from Google Patents.
US3220964A
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Natural and synthetic rubber vulcanized with a bisphenol resin and a metal halide
Assignee: Hoechst AG Werk Kalle Albert
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Filing: 1961-11-24
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Granted: 1965-11-30
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Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 Arnold A Giller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:41
CPC Classifications
C; C08; C08L; C08L21/00; C08K; C08K3/00; C08K3/02; C08K3/04; C08K5/00; C08K5/04; C08K5/06; C08L23/00; C08L23/02; C08L23/18; C08L23/20; C08L23/22; C08L23/26; C08L23/32; C08L23/34; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L57/00; C08L61/00; C08L61/04; C08L61/06; C08L9/00; C08L2312/00; C08L2666/00; C08L2666/02; C08L2666/14; C08L2666/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A PROCESS FOR VULCANIZING A SINGLE TYPE CONJUGATED DIENE RUBBER WHICH COMPRISES HEATING SAID RUBBER ELASTOMER WITH (1) A DIPHENOL RESIN OBTAINED BY CONDENSATION OF A BINUCLEAR DIPHENOL WITH FORMALDEHYDE UNDER ALKALINE CONDTIONS AND ETHERIFICATION OF THE RESULTING POLYMETHYLOL CONDENSATE WITH A MONOHYDRIC ALCOHOL AND (2) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) HALIDES OF METALS AND GROUPS II AND III OF THE PERIODIC TABLE, (B) HALIDES OF HEAVY METALS OTHER THAN THOSE GROUPS II AND III HAVING A SPECIFIC GRAVITY GREATER THAN 4, AND (C) A HALOGEN DONOR TO GETHER WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES AND SALTS OF WEAK ACIDS OF SAID METAL WHICH METAL COMPOUND IS REACTIVE WITH SAID HALOGEN DONOR AT A TEMPERATURE IN THE RANGE FROM 70 TO 250*C., AND HEATING THE RESULTING MIXTURE UNTIL IT IS VULCANIZED.
Claim 2
Dependent Claim
139 words
A PROCESS FOR VULCANIZING A SINGLE TYPE CONJUGATED DIENE RUBBER WHICH COMPRISES HEATING SAID RUBBER ELASTOMER WITH (1) A DIPHENOL RESIN OBTAINED BY CONDENSATION OF A BINUCLEAR DIPHENOL WITH FORMALDEHYDE UNDER ALKALINE CONDTIONS AND ETHERIFICATION OF THE RESULTING POLYMETHYLOL CONDENSATE WITH A MONOHYDRIC ALCOHOL AND (2) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (A) HALIDES OF METALS AND GROUPS II AND III OF THE PERIODIC TABLE, (B) HALIDES OF HEAVY METALS OTHER THAN THOSE GROUPS II AND III HAVING A SPECIFIC GRAVITY GREATER THAN 4, AND (C) A HALOGEN DONOR TO GETHER WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF OXIDES AND SALTS OF WEAK ACIDS OF SAID METAL WHICH METAL COMPOUND IS REACTIVE WITH SAID HALOGEN DONOR AT A TEMPERATURE IN THE RANGE FROM 70 TO 250*C., AND HEATING THE RESULTING MIXTURE UNTIL IT IS VULCANIZED.
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 |