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Encapsulation of the vulcanization accelerator of siloxane compositions hardenable into elastomers, and containing acyloxysilanes

Assignee: Rhodia Chimie SAS
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Filing: 1984-10-08
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Granted: —
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Expires: 2004-10-08
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Abstract

Abstract Translated from French La présente invention concerne une composition organopolysiloxanique pouvant réticuler en élastomère comprenant un polysiloxane polyhydroxylé A, un polyacyloxysilane B et un accélérateur de durcissement C, caractérisée en ce que l'accélérateur de durcissement C est contenu dans des microcapsules constituées d'une pellicule imperméable, ladite pellicule n'étant plus imperméable sous l'effet d'un traitement thermique et/ou mécanique adaptés. La composition selon l'invention peut se présenter sous une forme mono- ou bi-composante et est utilisable notamment à la fabrication de joints dans l'industrie automobile. The present invention relates to an organopolysiloxane composition which can crosslink into an elastomer comprising a polyhydroxylated polysiloxane A, a polyacyloxysilane B and a hardening accelerator C, characterized in that the hardening accelerator C is contained in microcapsules made of an impermeable film, said film no longer waterproof under the effect of a suitable heat and / or mechanical treatment. The composition according to the invention can be in a single or two-component form and can be used in particular for the manufacture of seals in the automotive industry.

Inventors

  • 👤 André Donnadieu
  • 👤 Michel Letoffe

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 04:21
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/10; C09K3/1006; C09K3/1018; C08; C08K; C08K9/00; C08K9/10; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/14; C08G77/16; C08G77/22; C08G77/24; C08G77/26; C08G77/60; C09K2200/00; C09K2200/02; C09K2200/0239; C09K2200/06; C09K2200/0602; C09K2200/0615; C09K2200/0625; C09K2200/0632; C09K2200/0635; C09K2200/0645; C09K2200/0647; C09K2200/0667; C09K2200/068; C09K2200/0682; Y; Y10; Y10S; Y10S528/00; Y10S528/901

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