Method for producing liquid composition for oral cavity and liquid composition for oral cavity
申请人:KAO CORPORATION
公开号:US10925821B2
公开(公告)日:2021-02-23
The present invention relates to a method for producing a liquid composition for oral cavity in which β-glycyrrhetinic acid is stably dispersed or dissolved to exhibit an increased transparency and which also can ensure a sufficient amount of β-glycyrrhetinic acid adsorbed on gingiva, even if the amount of a cationic surfactant or an anionic surfactant is restricted; and such a liquid composition for oral cavity. Specifically, the present invention relates to a method for producing a liquid composition for oral cavity, comprising the following step 1 to step 4: (Step 1) a step of blending water (F) with an organic acid and a salt thereof (E) to adjust the pH of a resultant mixture to 5 or more and 6.8 or less, (Step 2) a step of blending 0.02% by mass or more and 0.1% by mass or less of cetylpyridinium chloride (B) into the mixture, (Step 3) a step of blending 0.02% by mass or more and 0.1% by mass or less of β-glycyrrhetinic acid (A) and 2% by mass or more and 10% by mass or less of propylene glycol (C) into the mixture, and (Step 4) a step of blending 0.45% by mass or more and 1.1% by mass or less of polyoxyethylene hydrogenated castor oil (D) into the mixture, wherein the component (A) and the component (B) are blended at a specific mass ratio, and these steps are carried out in a specific order.
本发明涉及一种生产口腔用液体组合物的方法,在该组合物中,β-甘草亭酸被稳定地分散或溶解,以显示出更高的透明度,并且即使阳离子表面活性剂或阴离子表面活性剂的用量受到限制,也能确保牙龈上吸附有足够量的β-甘草亭酸;以及这样一种口腔用液体组合物。具体地说,本发明涉及一种生产口腔用液体组合物的方法,包括以下步骤 1 至步骤 4:(步骤 1)将水(F)与有机酸及其盐(E)混合,将所得混合物的 pH 值调至 5 或以上、6.8 或以下;(步骤 2)将质量分数为 0.02%或以上、0.1%或以下的氯化十六烷基吡啶(B)掺入混合物中;(步骤 3)将质量分数为 0.步骤 3)将 0.02%(质量分数)或更多和 0.1%(质量分数)或更少的 β-甘草次酸(A)和 2%(质量分数)或更多和 10%(质量分数)或更少的丙二醇 (C)混合到混合物中,以及(步骤 4)将 0.45%(质量分数)或更多和 1.1%(质量分数) 或更少的聚氧乙烯氢化蓖麻油(D)混合到混合物中。