IP Verse

Compositions Containing A Combination Of Z And E Stereoisomers Of Hydrofluoroolefins

Patent No. EP2185488 (titled "Compositions Containing A Combination Of Z And E Stereoisomers Of Hydrofluoroolefins") was filed by Arkema on Sep 4, 2008. The application was issued on Jan 3, 2018.

Patent Summary

This invention provides a composition comprising a combination of Z and E stereoisomers of F1234ze hydrofluoroolefins. The composition consists of from a trace up to less than 1% by weight of the Z isomer, with the balance being the E isomer. This specific ratio is designed to minimize toxicity, as the Z isomer is more active toward oxygen and more toxic than the E isomer, while maintaining low global warming potential and zero ozone depletion potential. The composition is utilized as a refrigerant, heat transfer fluid, foam blowing agent, aerosol propellant, fire suppression/extinguishing agent, or solvent for metal degreasing and dewatering. Applications include vapor-compression refrigeration, mobile air-conditioning (MAC), thermoplastic foam production, and total-flood fire suppression systems.

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Patent Oppositions (2)

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CompanyOpposition DateRepresentative
HONEYWELLOct 3, 2018CROOKS
MEXICHEM FLUOR DE CVOct 3, 2018POTTER CLARKSON

Dossier Documents

The dossier documents provide a comprehensive record of the patent's prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent's legal journey and any challenges it may have faced during examination.

  • Date

    Description

EP2185488

ARKEMA
Application Number
EP08799122A
Filing Date
Sep 4, 2008
Status
Revoked
Jul 2, 2021
Publication Date
Jan 3, 2018
External Links
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