Patent US2831829A successfully refreshed from Google Patents.
US2831829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rubber compounding and vulcanizate thereof
Assignee: Uniroyal Inc
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Filing: 1955-02-03
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Granted: 1958-04-22
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Expires: 1975-02-03
Abstract
No abstract record available.
Inventors
- 👤 Marvin C Brooks
- 👤 Roswell H Ewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:01
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/5406
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
THE METHOD WHICH COMPRISES COMMINGLING (A) A HALOGEN-FREE, LIQUID REACTION PRODUCT OF A HYDROCARBON HALOSILANE AND AN EXCESS OF AN ALIPHATIC OXYGEN COMPOUND, (B) A SULFUR-VULCANIZABLE ELASTOMER CONTAINING AT LEAST 25% OF COMBINED ALIPHATIC CONJUGATED DIOLEFIN AND (C) A FILLER SELECTED FROM THE GROUP CONSISTING OF PRECIPITATED HYDRATED SILICA, PRECIPITATED HYDRATED CALCIUM SILICATE AND KAOLIN, SAID FILLER HAVING AN AVERAGE PARTICLE SIZE NOT GREATER THAN 10 MICRONS AND A DEGREE OF HYDRATION CORRESPONDING TO NOT LESS THAN 0.02 GRAM OF MOISTURE PER 100 SQUARE METERS OF SURFACE AREA, AND HEATING THE MIXTURE TO AT LEAST 250*F. TO EFFECT REACTION OF SAID REACTION PRODUCT WITH SAID FILLER TO FORM A CHEMICAL LINKAGE WITH THE SURFACE OF SAID FILLER, SAID HALOSILANE BEING SELECTED FROM THE GROUP CONSISTING OF AILPHATIC AND CYCLOALIPCALLY SATURATED HYDROCARBON HALOSILANES, AND OLEFINICALLY UNSATURATED HYDROCARBON HALOSILANES, AND SAID OXYGEN COMPOUND BEING SELECTED FROM THE GROUPCONSISTING OF SATURATED ALIPHATIC MONOHYDRIC ALCOHOLS, AND OXIRANES HAVING THE FORMULA
Claim 2
Independent Claim
156 words
THE METHOD WHICH COMPRISES COMMINGLING (A) A HALOGEN-FREE, LIQUID REACTION PRODUCT OF A HYDROCARBON HALOSILANE AND AN EXCESS OF AN ALIPHATIC OXYGEN COMPOUND, (B) A SULFUR-VULCANIZABLE ELASTOMER CONTAINING AT LEAST 25% OF COMBINED ALIPHATIC CONJUGATED DIOLEFIN AND (C) A FILLER SELECTED FROM THE GROUP CONSISTING OF PRECIPITATED HYDRATED SILICA, PRECIPITATED HYDRATED CALCIUM SILICATE AND KAOLIN, SAID FILLER HAVING AN AVERAGE PARTICLE SIZE NOT GREATER THAN 10 MICRONS AND A DEGREE OF HYDRATION CORRESPONDING TO NOT LESS THAN 0.02 GRAM OF MOISTURE PER 100 SQUARE METERS OF SURFACE AREA, AND HEATING THE MIXTURE TO AT LEAST 250*F. TO EFFECT REACTION OF SAID REACTION PRODUCT WITH SAID FILLER TO FORM A CHEMICAL LINKAGE WITH THE SURFACE OF SAID FILLER, SAID HALOSILANE BEING SELECTED FROM THE GROUP CONSISTING OF AILPHATIC AND CYCLOALIPCALLY SATURATED HYDROCARBON HALOSILANES, AND OLEFINICALLY UNSATURATED HYDROCARBON HALOSILANES, AND SAID OXYGEN COMPOUND BEING SELECTED FROM THE GROUPCONSISTING OF SATURATED ALIPHATIC MONOHYDRIC ALCOHOLS, AND OXIRANES HAVING THE FORMULA
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) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |