US3350429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of modified clays
Assignee: Shiraishi Kogyo Kaisha Ltd
•
Filing: 1962-04-30
•
Granted: 1967-10-31
•
Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 Hasegawa Hiroshi
- 👤 Suito Eiji
- 👤 Kondo Mitsuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:09
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1305
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD FOR PRODUCING A MODIFIED MONTMORILLONITE CLAY IN WHICH A CHAIN HYDROCARBON RADICAL OF ORGANIC COMPLEX MOLECULES EXTENDS PERPENDICULARLY TO THE BASAL PLANE (001) BETWEEN THE CLAY STRUCTURAL SHEETS, SAID METHOD COMPRISING THE STEPS OF ADDING TO MONTMORILLONITE CLAY A COMPLEX WHICH IS PRODUCED BY MELTING AND MIXING 1 MOL. OF HIGHER FATTY AMINE TOGETHER WITH 1 MOL. OF A MEMBER OF THE GROUP CONSISTING OF HIGHER FATTY AMIDE AND HIGHER FATTY NITRILE; ADDING TO THE MIXTURE WITH 1 MOL. OF THE GROUP CONSISTING OF ACETIC ACID AND A COMPLEX WHICH IS PRODUCED BY MELTING AND MIXING 1 MOL. OF HIGHER FATTY AMINE ACETATE TOGETHER WITH 1 MOL. OF HIGHER FATTY AMIDE OR HIGHER FATTY NITRILE, SAID CHAIN HAVING FROM 12 TO 22 CARBON ATOMS.
Claim 2
Independent Claim
126 words
THE METHOD FOR PRODUCING A MODIFIED MONTMORILLONITE CLAY IN WHICH A CHAIN HYDROCARBON RADICAL OF ORGANIC COMPLEX MOLECULES EXTENDS PERPENDICULARLY TO THE BASAL PLANE (001) BETWEEN THE CLAY STRUCTURAL SHEETS, SAID METHOD COMPRISING THE STEPS OF ADDING TO MONTMORILLONITE CLAY A COMPLEX WHICH IS PRODUCED BY MELTING AND MIXING 1 MOL. OF HIGHER FATTY AMINE TOGETHER WITH 1 MOL. OF A MEMBER OF THE GROUP CONSISTING OF HIGHER FATTY AMIDE AND HIGHER FATTY NITRILE; ADDING TO THE MIXTURE WITH 1 MOL. OF THE GROUP CONSISTING OF ACETIC ACID AND A COMPLEX WHICH IS PRODUCED BY MELTING AND MIXING 1 MOL. OF HIGHER FATTY AMINE ACETATE TOGETHER WITH 1 MOL. OF HIGHER FATTY AMIDE OR HIGHER FATTY NITRILE, SAID CHAIN HAVING FROM 12 TO 22 CARBON ATOMS.
References Cited (Backward Citations)
US2531427A
Cited
US2883357A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |