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US 2023/0181444 A1Published application
Compositions comprising organo-silanol compounds, and applications
AssigneeExsymol
InventorPierre Bondon
Life of this patent
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Abstract
A composition comprising stabilised organo-silanol compounds, said composition comprising two different organo-silanols and an organo-silanol(s) stabilising/complexing agent.
Claims22
A hydroglycolic composition comprising:
- a) a first organo-silanol of the following general formula (I):
- X—Si(OH)3 (I)
- wherein X is a linear or branched C1-C4 alkyl group, optionally substituted with at least one hydroxyl group;
- b) a second organo-silanol of the following general formula (III):
- X—Si(OH)2O—CH(R1)—CH(R2)(R3) (III)
- wherein:
- the X is a linear or branched C1-C4 alkyl group, optionally substituted with at least one hydroxyl group;
- R1 is —H or —CH3;
- R2 is —H, —OH, or —CH3;
- R3 is —CH3, —CH2—CH3, —CH2OH, —CH(CH3)OH, —CH2—CH2—CH3, —CH2—CH2— CH2—CH3, —CH2—CH2—CH2—CH2—OH, or —C(CH3)(CH3)—OH;
- c) an organo-silanol(s) stabilising/complexing agent, suitable for allowing the formation of a molecular complex with at least one organo-silanol via the establishment of at least one weak chemical bond, with said at least one organo-silanol;
- and
- d) at least one glycolic solvent.
10 more elements
9-10. (canceled)
A process for preparing an organosilanol of formula (III),
- X—Si(OH)2O—CH(R1)—CH(R2)(R3) (III)
- wherein:
- X is a linear or branched C1-C4 alkyl group optionally substituted with at least one hydroxyl group;
- R1 is —H or —CH3;
- R2 is —H, —OH, or —CH3;
- R3 is —CH3, —CH2—CH3, —CH2OH, —CH(CH3)OH, —CH2—CH2—CH3, —CH2—CH2— CH2—CH3, —CH2—CH2—CH2—CH2—OH, or —C(CH3)(CH3)—OH;
- comprising
- a) obtaining an organo-silanol of the following general formula (I):
- X—Si(OH)3 (I)
- wherein X is a linear or branched C1-C4 alkyl group;
- b) contacting said organo-silanol of formula (I) with at least one glycolic solvent of formula (II):
- HO—CH(R1)—CH(R2)(R3) (II)
- wherein:
- R1 is —H or —CH3;
- R2 is —H, —OH, or —CH3;
- R3 is —CH3, —CH2—CH3, —CH2OH, —CH(CH3)OH, —CH2—CH2—CH3, —CH2—CH2—CH2—CH3, —CH2—CH2—CH2—CH2—OH, or —C(CH3)(CH3)—OH;
- for a sufficient period of time to obtain, via a mono-alkoxylation reaction, the organo-silanol of formula (III).
14 more elements
14-15. (canceled)
Dependencies are inferred from the claim text.