Patent US3682996A successfully refreshed from Google Patents.
US3682996A
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Zeolite esters
Assignee: Mobil Oil AS
•
Filing: 1970-02-24
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Granted: 1972-08-08
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Expires: 1990-02-24
Abstract
Abstract As a novel composition of matter a crystalline alumino-silicate ester made by reacting a crystalline aluminosilicate having an available hydrogen atom with an organic silane having a SiH group.
Inventors
- 👤 George T Kerr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0836; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/084; B01J29/085; B01J29/087; B01J29/088; B01J31/00; B01J31/02; B01J31/0234; B01J31/0235; B01J31/0254; B01J31/0272; B01J31/0274; C10; C10G; C10G35/00; C10G35/04; C10G35/06; C10G35/095; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
11 words
A zeolite ester according to claim 1 wherein R is methyl.
Claim 2
Dependent Claim
15 words
A zeolite ester according to claim 2 wherein there are three methyl groups per moiety.
Claim 3
Dependent Claim
41 words
A zeolite ester prepared by reacting a crystalline aluminosilicate zeolite having an available hydrogen atom with an organic silane, said organic silane having the formula R(x)SiH(4 x) wherein R is selected from the group consisting of aryl, alkyl, acyl and aralkyl.
Claim 4
Independent Claim
59 words
A method of preparing crystalline alumino-silicate zeolite esters which comprises contacting an organosilane with a crystalline aluminosilicate zeolite having an available hydrogen atom under conditions effective for formation of the crystalline aluminosilicate zeolite ester, said organosilane having from 1 to 4 alkyl groups per silicon molecule, each alkyl group having from 1 to 4 carbon atoms in chain length.
Claim 5
Dependent Claim
25 words
A method according to claim 5 wherein the crystalline aluminosilicate is the hydrogen form of zeolite Y and the silane is a trialkyl substituted silazane.
Claim 6
Dependent Claim
13 words
A method according to claim 6 wherein the trialkyl substituted sIlazane is trimethylsilazane.
Claim 7
Dependent Claim
11 words
A method according to claim 5 wherein the organo-silane is trimethylsilane.
Claim 8
Dependent Claim
11 words
A method according to claim 5 wherein the silane is hexamethyldisilazane.
Claim 9
Dependent Claim
18 words
A method according to claim 5 wherein the crystalline aluminosilicate zeolite is a rare earth exchanged crystalline aluminosilicate.
Claim 10
Dependent Claim
18 words
A method according to claim 10 wherein the crystalline aluminosilicate is a rare earth exchanged hydrogen zeolite X.
Claim 11
Dependent Claim
17 words
A method according to claim 5 wherein the crystalline aluminosilicate is a rare earth exchanged zeolite Y.
Claim 12
Dependent Claim
15 words
A method according to claim 5 wherein the zeolite is a lanthanum exchanged zeolite X.
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) | 1975-08-08 | 1976-02-07 | 1976-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-08 | 1980-02-07 | 1980-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-08 | 1984-02-07 | 1984-08-08 | $7700.00 | Window Closed / Lapsed |