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US3896079A Expired / Lapsed US ⏱️ 0.0 years remaining

Iminoxyorganosilanes

Assignee: Rhone Poulenc SA
•
Filing: 1973-10-30
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Granted: 1975-07-22
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Expires: 1993-10-30
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Abstract

Abstract Silanes R-Si Pa Q3 a where R is unsubstituted or halo, alkoxy or nitrile substituted hydrocarbon radical, one of P 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; prepared by reacting RSiEaQ3 a with PH where E is halogen or acyloxy, are used as cross-linking agents for polydiorgenosiloxanes 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 2026-10-26 22:48
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/0834; C07F7/0892; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C08G77/18; C08G77/20; C08G77/22; C08G77/24; C08G77/26; C08G77/70; Y; Y10; Y10S; Y10S528/00; Y10S528/901

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 38 words
AN ELASTOMER FORMING COMPOSITION COMPRISING AT LEAST ONE POLYDIORGANSILOXANE TERMINATED AT EACH END OF THE CHAIN BY A HYDROXY, ALKOXY, AMINO, AMINOXY, IMONOXY OR ACYLOXY GROUP AND, AS CROSS-LINKING AGENT, AT LEAST ONE SILANE OF THE GENERAL FORMULA:
Claim 2
Dependent Claim 38 words
AN ELASTOMER FORMING COMPOSITION COMPRISING AT LEAST ONE POLYDIORGANSILOXANE TERMINATED AT EACH END OF THE CHAIN BY A HYDROXY, ALKOXY, AMINO, AMINOXY, IMONOXY OR ACYLOXY GROUP AND, AS CROSS-LINKING AGENT, AT LEAST ONE SILANE OF THE GENERAL FORMULA:
Claim 3
Dependent Claim 28 words
A composition according to claim 1 wherein R represents an alkyl radical having 1 to 12 carbon atoms or an alkenyl radical having 2 to 12 carbon atoms.
Claim 4
Dependent Claim 15 words
A composition according to claim 1 wherein R represents a methyl, vinyl or phenyl radical.
Claim 5
Dependent Claim 18 words
A composition according to claim 1 wherein R'' represents an alkyl group having 1 to 6 carbon atoms.
Claim 6
Dependent Claim 15 words
A composition according to claim 4 wherein R'' represents a methyl, ethyl or propyl radical.
Claim 7
Dependent Claim 14 words
A composition according to claim 1 wherein R'''' represents hydrogen or a methyl radical.
Claim 8
Dependent Claim 12 words
A composition according to claim 1 wherein D represents a -CH2CH2- radical.
Claim 9
Dependent Claim 15 words
A composition according to claim 1 wherein R'''''' represents a methyl, ethyl or propyl radical.
Claim 10
Dependent Claim 34 words
A composition according to 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 11
Dependent Claim 20 words
A method of forming an elastomer which comprises subjecting a composition according to claim 11 to the action of water.

References Cited (Backward Citations)

US3409573A Cited
US3471434A Cited
US3438930A Cited
US3697568A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-07-21 1979-01-20 1979-07-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-07-21 1983-01-20 1983-07-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-07-21 1987-01-20 1987-07-22 $7700.00 Window Closed / Lapsed

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