Patent US2098552A successfully refreshed from Google Patents.
Patent US4927952A successfully refreshed from Google Patents.
US4927952A
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US
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Silanol condensation products
Assignee: Exsymol SAM
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Filing: 1988-05-24
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Granted: 1990-05-22
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Expires: 2008-05-24
Abstract
Abstract Product of condensation of a silanol or a silanol derivative, which comprises an Si atom carrying two organic radicals and two oxygen atoms connected to organic groups other than the radicals; at least one of these organic groups carries at least one NH and a NH2.
Inventors
- 👤 Jean Gueyne
- 👤 Marie-Christine Seguin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:04
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1896
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
100 words
A compound of the formula: ##STR21## wherein: R and R 1 are alkyl groups, alkenyl groups, alkoxy groups, cycloalkyl groups, hydrocarbon aryl groups, unsubstituted or substituted with halogen, hydroxyl, acyl or alkoxy groups, or amide groups of up to 18 carbon atoms or hydroxy; R 2 and R 3 independently are alkyl groups, alkenyl groups, alkoxy groups, cycloalkyl groups, cycloalkenyl groups, hydrocarbon aryl groups or aryloxy groups of up to 18 carbon atoms or are linked to form a ring; and wherein at least one of the R 2 and R 3 groups contain an NH 2 or NH moiety.
Claim 2
Dependent Claim
100 words
A compound of the formula: ##STR21## wherein: R and R 1 are alkyl groups, alkenyl groups, alkoxy groups, cycloalkyl groups, hydrocarbon aryl groups, unsubstituted or substituted with halogen, hydroxyl, acyl or alkoxy groups, or amide groups of up to 18 carbon atoms or hydroxy; R 2 and R 3 independently are alkyl groups, alkenyl groups, alkoxy groups, cycloalkyl groups, cycloalkenyl groups, hydrocarbon aryl groups or aryloxy groups of up to 18 carbon atoms or are linked to form a ring; and wherein at least one of the R 2 and R 3 groups contain an NH 2 or NH moiety.
Claim 3
Dependent Claim
35 words
The compound of claim 1, wherein said hydrocarbon aryl groups R and R 1 are substituted with at least one moiety selected from the group consisting of halogen, hydroxyl groups, alkoxyl groups and acyl groups.
Claim 4
Dependent Claim
16 words
The compound of claim 1, containing an amide moiety in R 2 or R 3 .
Claim 5
Dependent Claim
28 words
The compound of claim 1, wherein R and R 1 are alkyl groups having 1 to 8 carbon atoms or alkoxy groups having 1 to 8 carbon atoms.
Claim 6
Dependent Claim
29 words
The compound of claim 1, wherein R 2 and R 3 are alkyl groups having 1 or 2 carbon atoms or alkenyl groups having 1 or 2 carbon atoms.
Claim 7
Dependent Claim
21 words
The compound of claim 1, wherein R 2 and R 3 are linked to complete a 5 or 6 membered ring.
Claim 8
Dependent Claim
30 words
The compound of claim 6 of the formula: ##STR22## wherein A is hydrogen or acetyl and R 4 is hydrogen or an alkyl group having 1 to 4 carbon atoms.
Claim 9
Dependent Claim
20 words
The compound of claim 7, wherein R and R 1 are alkyl or alkoxy of 1 to 4 carbon atoms.
Claim 10
Dependent Claim
13 words
The compound of claim 1, wherein R 1 is not a hydrocarbon group.
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) | 1993-05-21 | 1993-11-20 | 1994-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-21 | 1997-11-20 | 1998-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-21 | 2001-11-20 | 2002-05-22 | $7700.00 | Window Closed / Lapsed |