Depolymerization of silicone polymers into organopolysiloxanes

FR3167392A1Pending Publication Date: 2026-04-17ELKEM SILICONES FRANCE SAS +3
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
ELKEM SILICONES FRANCE SAS
Filing Date
2024-10-10
Publication Date
2026-04-17
Patent Text Reader

Abstract

The present invention relates to a method for preparing organopolysiloxanes OR by a depolymerization reaction of at least one silicone S in the presence of an anionic catalytic system comprising an organic cation. The present invention also relates to a process for preparing silicone S, in particular silicone oils, resins, gums, or elastomers, comprising the following steps: 1) Carrying out the aforementioned process for preparing organopolysiloxanes OR; 2) Preparing silicone S from the organopolysiloxanes OR obtained in step 1). Figure(s): NONE.
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Citation Information

Patent Citations

  • Process for producing alkoxysiloxanes from waste silicone

    US20240052132A1

  • Organopolysiloxane depolymerization

    FR3133854A1

  • Organopolysiloxane depolymerization

    WO2023180271A1

  • Depolymerization of silicone to obtain organochlorosilane

    WO2023222749A1