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US 12,312,558 B2Granted
Anti-staining agent
AssigneeKao Corporation
InventorSatoru Okamura
Life of this patent
Estimating the term…
Abstract
The present invention is an anti-staining agent containing, (a) a sulfosuccinic acid branched alkyl ester in which the branched alkyl group is a branched alkyl group with 8 or more and 13 or less carbons [hereinafter referred to as component (a)]. Further, the present invention is an anti-staining method including bringing a treatment liquid into contact with an object to be treated, the treatment liquid containing component (a).
Claims6
An anti-staining method, comprising:
- reducing adsorption of a hydrophobic stain component to an object having a hydrophobic surface by contacting the object with a treatment liquid comprising a sulfosuccinic acid branched alkyl ester represented by formula (a1-1) as component (a) in an amount of 1 ppm or more and 500 ppm or less:
- where R1a and R2a are a 2-propylheptyl group and M1 represents a hydrogen atom or a cation.
Dependencies are inferred from the claim text.