Patent · US Active

Process for synthesizing alkenyl disiloxane

US12180238B2 · kind B2 · utility

0Cited by

1References

20Claims

0Family size

Assignee

Dow Silicones Corporation · US

Inventors

Xiaoyuan Zhou · Midland, US
Zhanjie Li · Pleasanton, US
Eric Jude Joffre · Midland, US

Key dates

Filing date	Dec 11, 2020
Grant date	Dec 31, 2024
Priority date	—
Expiry date	Sep 19, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F7/20
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Described herein are methods for making alkenyl disiloxanes, comprising combining an alkenyl halosilane with a bis-hydrido terminated alkyl disiloxane and adding the mixture to water, an acidic aqueous solution, or a basic aqueous solution. The ratio of the alkenyl halosilane to the bis-hydrido terminated alkyl disiloxane is about 1:10 to about 10:1. The alkenyl halosilane and bis-hydrido terminated alkyl disiloxane are mixed at about 20° C. to about 45° C. In an example, no organic solvent is present. The reaction product is separated and washed with saturated NaHCO3 solution (e.g., sodium bicarbonate).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.