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US3697568A Expired / Lapsed US ⏱️ 0.0 years remaining

Iminoxyorganosilanes

Assignee: Rhone Poulenc SA
•
Filing: 1970-11-12
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Granted: 1972-10-10
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Expires: 1990-11-12
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Abstract

Abstract Silanes R-Si Ya Q3 a where R is unsubstituted or halo, alkoxy or nitrile substituted hydrocarbon radical, one of Y and Q is ON CR''R'''' and the other is O(DO)nR'''''', a a number from 0.1 to 2.9, where R'' is a hydrocarbon radical, R'''' is H or C1 5 alkyl, or R'' and R'''' together are divalent hydrocarbon radicals, R'''''' is C1 4 aliphatic hydrocarbon radical, D is C1 8 alkylene radical and n O, 1, 2 or 3; are prepared by reacting RSiEaQ3 a with YH where E is halogen or acyloxy. They may be used particularly as cross-linking agents for polydiorganosiloxanes having reactive terminal groups on the chain to give elastomer forming compositions which are storage stable in the absence of water and which cure to form elastomers in the presence of water at about 20* C.

Inventors

  • 👤 Jean Boissieras
  • 👤 Louis Ceyzeriat
  • 👤 Guy Poy

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 21:26
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C07F7/1872; C07F7/188; C07F7/0834; C07F7/0892; C08; C08L; C08L83/00; C08L83/04; Y; Y10; Y10S; Y10S528/00; Y10S528/901

Claims Analysis

Total Claims: 13
Claim 1
Independent Claim 28 words
A silane according to claim 1 wherein R represents an alkyl radical having one to 12 carbon atoms or an alkenyl radical having two to 12 carbon atoms.
Claim 2
Dependent Claim 15 words
A silane according to claim 1 wherein R represents a methyl, vinyl or phenyl radical.
Claim 3
Dependent Claim 17 words
The silane of claim 1 wherein R'' represent an alkyl group having one to six carbon atoms.
Claim 4
Dependent Claim 14 words
The silane of claim 4 wherein R'' represents a methyl, ethyl or propyl radical.
Claim 5
Dependent Claim 13 words
The silane of claim 1 wherein R'''' represents hydrogen or a methyl radical.
Claim 6
Dependent Claim 10 words
The silane of claim 1 wherein D represents a -CH2CH2-radical.
Claim 7
Dependent Claim 14 words
The silane of claim 1 wherein R'''''' represents a methyl, ethyl or propyl radical.
Claim 8
Dependent Claim 33 words
The silane of claim 1 wherein R represents methyl, vinyl or phenyl, R'' represents methyl, ethyl or propyl, R'''' represents hydrogen or methyl, D represents -CH2CH2- and R'''''' represents methyl, ethyl or propyl.
Claim 9
Dependent Claim 47 words
A process for the preparation of a silane according to claim 1 which comprises completely reacting a compound of general formula: with a compound of general formula HY where E represents halogen or an acyloxy radical and R, Q, Y and a are as defined in claim
Claim 10
Dependent Claim 14 words
A process according to claim 10 wherein E represents chlorine or an acetoxy radical.
Claim 11
Dependent Claim 66 words
A process according to claim 10 wherein about two-thirds of the stoichiometric amount of a silane reactant of formula: wherein hal represents halogen, is reacted with ammonia or a primary alkylamine or arylamine in an inert diluent, the resulting product reacted with an oxime of formula HO.N CR''R'''' and the resulting reaction product reacted with The remaining one-third of the stoichiometric amount of the silane reactant.
Claim 12
Dependent Claim 41 words
A process according to claim 10 wherein a silane reactant of formula: is reacted with an oxime of formula HO.N CR''R'''', the mixture diluted with an inert diluent and ammonia or a primary alkylamine or arylamine added to complete the reaction.
Claim 13
Dependent Claim 12 words
A process according to claim 10 wherein a silane reactant of formula:

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-10-10 1976-04-10 1976-10-10 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-10-10 1980-04-10 1980-10-10 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-10-10 1984-04-10 1984-10-10 $7700.00 Window Closed / Lapsed

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