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US4927952A Expired / Lapsed US ⏱️ 0.0 years remaining

Silanol condensation products

Assignee: Exsymol SAM
•
Filing: 1988-05-24
•
Granted: 1990-05-22
•
Expires: 2008-05-24
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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 16:43
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)

US3513184A Cited
US3700716A Cited
US4511727A Cited
US4496754A Cited

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

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