US3700716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amino-functional silane compounds
Assignee: General Electric Co
•
Filing: 1971-08-12
•
Granted: 1972-10-24
•
Expires: 1991-08-12
Abstract
Abstract A silicone compound of the formula, WHERE L is selected from secondary amine groups and R10 groups, R1 and R2 are selected from hydrocarbon groups and R3 and R4 are selected from hydrogen, hydrocarbon groups and other amine groups. Further, n is a whole number that varies from 1 to 20 and a is a whole number that varies from 0 to 2. These aminofunctional silane compounds may be used as sewage flocculents.
Inventors
- 👤 Abe Berger
- 👤 Terry G Selin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:36
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/10; C07F7/18; C07F7/1804; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
10 words
THESE AMINO-FUNCTIONAL SILANE COMPOUNDS MAY BE USED AS SEWAGE FLOCCULENTS.
Claim 2
Dependent Claim
18 words
A compound of claim 1 wherein R, R1 and R2 are methyl and n is equal to 3.
Claim 3
Dependent Claim
11 words
The compound of claim 1 wherein the compound has the formula,
Claim 4
Independent Claim
136 words
A method for producing a silane compound of the formula, comprising reacting a compound of the formula, with a compound of the formula, where L is selected from the class consisting of R''2N- and R'' O-, R and R1 are selected from the class consisting of monovalent hydrocarbon radicals and monovalent halogenated hydrocarbon radicals, R2 is selected from the class consisting Of alkyl and aryl radicals of up to 10 carbon atoms, R3 and R4 are independently selected from the class consisting of hydrogen, aryl radicals, alkyl radicals, and -R5OR1, where R5 is a divalent hydrocarbon radical selected from the class consisting of alkylene and arylene radicals of up to 10 carbon atoms, n is a whole number that varies from 1 to 20 and a is a whole number that varies from 0 to 2.
Claim 5
Dependent Claim
18 words
The method of claim 4 wherein the reaction is carried out at temperatures of 60* - 120* C.
Claim 6
Dependent Claim
11 words
The method of claim 4 wherein a basic catalyst is used.
Claim 7
Dependent Claim
25 words
The method of claim 6 wherein the basic catalyst is selected from the class consisting of sodium hydroxide, sodium methoxide, sodium ethoxide and potassium hydroxide.
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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |