Oral components

A combination of propylene glycol, polyoxyethylene hydrogenated castor oil, and paraoxybenzoic acid ester in oral compositions addresses paraben precipitation at low temperatures, ensuring effective preservative performance.

JP7876991B2Active Publication Date: 2026-06-22SUNSTAR INC
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
SUNSTAR INC
Filing Date
2021-12-20
Publication Date
2026-06-22

AI Technical Summary

Technical Problem

Paraben precipitates in oral compositions when left at low temperatures, compromising their preservative effect.

Method used

Combining propylene glycol, polyoxyethylene hydrogenated castor oil, and paraoxybenzoic acid ester in specific ratios, along with glycerin, to prevent paraben precipitation and maintain excellent preservative efficacy.

Benefits of technology

The composition effectively prevents paraben precipitation at low temperatures while maintaining strong preservative properties.

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Abstract

To provide an oral composition that does not cause precipitation of paraben even when left standing at low temperatures, and also exhibits an excellent antiseptic effect.SOLUTION: An oral composition contains (A) propyleneglycol, (B) polyoxyethylene hydrogenated castor oil, (C) p-hydroxybenzoate, and (D) glycerol, with a mass ratio A / B of 5.5 or more and a mass ratio B / C of 2.8 or less. In the composition, a content of component (D) is 6 mass% or more.SELECTED DRAWING: None
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Citation Information

Patent Citations

  • JP2000053546A

  • JP2011132169A

  • JP2013194025A

  • JP2014185126A

  • JP2018002719A