US2563555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reinforced elastic organo-substi
Assignee: —
•
Filing: —
•
Granted: 1951-08-07
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Expires: 1968-08-07
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:40
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/34; C08K3/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A HEAT-CONVERTIBLE COMPOSITION OF MATTER COMPRISING (1) A SOLID, ELASTIC, POLYMERIZED METHYL-SUBSTITUTED POLYSILOXANE CONTAINING AN AVERAGE OF FROM 1.95 TO 2.0 METHYL GROUPS PER SILICON ATOM AND (2) A FINELY DIVIDED FILLER SELECTED FROM THE CLASS CONSISTING OF (A) ALUMINO-SILICIC ACID CLAYS AND (B) A FILLER, OTHER THAN SUCH ALUMINOSILICA ACID CLAYS, ANALYZING, BY WEIGHT, FROM 50 TO 80 PER CENT OF SIO2 AND FROM 50 TO 19.21 PER CENT OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF ALUMINUM OXIDE, MAGNESIUM OXIDE, ALKALI-METAL OXIDES, ALKALINE EARTH METAL OXIDES, AND COMBINATIONS OF SUCH METALLIC OXIDES, THE SAID FILLER HAVING BEEN PREVIOUSLY INTIMATELY CONTACTED WITH THE VAPORS OF A HYDROCARBON-SUBSTITUTED HALOGENOSILANE WHEREBY A WATER-REPELLENT HYDROCARBON - SUBSTITUTED POLYSILOXANE FILM IS FORMED ON THE SURFACE OF THE INDIVIDUAL PARTICLES OF THE FILLER, AND THE SAID TREATED FILLER THEREAFTER HEATED TO REMOVE SUBSTANTIALLY ALL TRACES OF FORMED HYDROGEN HALIDE.
Claim 2
Dependent Claim
146 words
A HEAT-CONVERTIBLE COMPOSITION OF MATTER COMPRISING (1) A SOLID, ELASTIC, POLYMERIZED METHYL-SUBSTITUTED POLYSILOXANE CONTAINING AN AVERAGE OF FROM 1.95 TO 2.0 METHYL GROUPS PER SILICON ATOM AND (2) A FINELY DIVIDED FILLER SELECTED FROM THE CLASS CONSISTING OF (A) ALUMINO-SILICIC ACID CLAYS AND (B) A FILLER, OTHER THAN SUCH ALUMINOSILICA ACID CLAYS, ANALYZING, BY WEIGHT, FROM 50 TO 80 PER CENT OF SIO2 AND FROM 50 TO 19.21 PER CENT OF A MATERIAL SELECTED FROM THE CLASS CONSISTING OF ALUMINUM OXIDE, MAGNESIUM OXIDE, ALKALI-METAL OXIDES, ALKALINE EARTH METAL OXIDES, AND COMBINATIONS OF SUCH METALLIC OXIDES, THE SAID FILLER HAVING BEEN PREVIOUSLY INTIMATELY CONTACTED WITH THE VAPORS OF A HYDROCARBON-SUBSTITUTED HALOGENOSILANE WHEREBY A WATER-REPELLENT HYDROCARBON - SUBSTITUTED POLYSILOXANE FILM IS FORMED ON THE SURFACE OF THE INDIVIDUAL PARTICLES OF THE FILLER, AND THE SAID TREATED FILLER THEREAFTER HEATED TO REMOVE SUBSTANTIALLY ALL TRACES OF FORMED HYDROGEN HALIDE.
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) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |