US3567680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface modified pigments and methods for producing same and elastomers containing same
Assignee: JM Huber Corp
•
Filing: 1968-05-03
•
Granted: 1971-03-02
•
Expires: 1988-05-03
Abstract
Abstract A MERCAPTOSILANE GRAFTED INORGANIC PIGMENT SUCH AS KAOLIN CLAY FOR USE AS A REINFORCING FILLER IN ELASTOMERS, PLASTICS, AND THE LIKE IS OBTAINED BY SPRAY DRYING A DISPERSED AQUEOUS SLURRY OF THE PIGMENT IN THE PRESENCE OF A SMALL AMOUNT OF MERCAPTOORGANOSILANE. SMALL AMOUNTS OF MERCAPTOSILANE GRAFTED TO INORGANIC PIGMENTS SUCH AS KAOLIN CLAY SIGNIFICANTLY INCREASE THE REINFORCEMENT OF ELASTOMERS. A BLEND OF MERCAPTOSILANE AND AMINOSILANE GRAFTED TO INORGANIC PIGMENTS SUCH AS KAOLIN CLAY GIVES HIGHER REINFORCEMENT TO ELASTOMERS THAN LIKE AMOUNTS OF EITHER MERCAPTOSILANES OR AMINOSILANES GRAFTED TO THE PIGMENT ALONE.
Inventors
- 👤 Joseph Iannicelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:53
CPC Classifications
C; C09; C09C; C09C3/00; C09C3/12; C08; C08K; C08K9/00; C08K9/04; C08K9/06; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |